CN111491376A - Air interface resource scheduling method and equipment - Google Patents
Air interface resource scheduling method and equipment Download PDFInfo
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- CN111491376A CN111491376A CN201910081105.7A CN201910081105A CN111491376A CN 111491376 A CN111491376 A CN 111491376A CN 201910081105 A CN201910081105 A CN 201910081105A CN 111491376 A CN111491376 A CN 111491376A
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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
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- 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
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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
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
- H04W72/56—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
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- 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
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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 provides an air interface resource scheduling method and equipment, which are used for scheduling and allocating the total amount of available air interface resources according to service data information between a base station and a terminal to generate air interface resource configuration information comprising narrowband air interface resource configuration information and/or broadband air interface resource configuration information, and then performing data transmission according to the air interface resource configuration information. Therefore, the total amount of the available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, the dynamic allocation of the air interface resources as required is realized when the bidirectional data communication is carried out between the base station and the terminal, and the utilization rate of the air interface resources is further improved.
Description
Technical Field
The present invention relates to the field of trunking communication technologies, and in particular, to a method and an apparatus for scheduling air interface resources.
Background
The trunking communication technology, one of the most representative technologies in the wireless communication technology, has been widely applied to the commanding and scheduling processes of multiple industries such as public security, government affairs, transportation, ports, and medical treatment. However, as the demands of various industries for broadband mobile communication become stronger, the traditional narrowband trunking communication system based on voice and low-speed data transmission cannot meet the growing demands of high-speed data services, so the narrowband trunking communication system and the broadband trunking communication system are used in combination to meet various demands of industrial users.
The air interface resource refers to a frequency spectrum resource occupied by mutual data transmission between the user terminal and the base station, and two independent base stations provided with the narrow-band trunking communication system and the wide-band trunking communication system can realize the bidirectional data communication of multiple services between the base station and the user terminal through the air interface resource. 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 that can be used by the narrowband trunking communication system and the broadband trunking communication system is also statically allocated and is independent of each other. However, the traffic volume carried by the narrowband trunking communication system and the traffic volume carried by the broadband trunking communication system respectively change in real time according to the size of data actually transmitted by the bidirectional data communication, that is, the number of air interface resources actually required by the narrowband trunking communication system and the broadband trunking communication system changes dynamically, so that it is difficult to obtain a high utilization rate of the air interface resources when the broadband and narrowband trunking communication systems adopt the existing statically allocated air interface resources to perform data communication.
Disclosure of Invention
In view of this, the present invention provides a method and a device for scheduling air interface resources, which improve the utilization rate of the air interface resources.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for scheduling air interface resources, the method comprising:
determining service data information between a base station and a terminal; the service data information comprises transmission service volume and/or service scheduling conditions;
acquiring current available air interface resources;
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; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and transmitting data according to the air interface resource configuration information.
Preferably, after scheduling and allocating the total amount of available air interface resources according to the service data information and generating 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, the data transmission is performed according to the air interface resource configuration information, and includes:
sending 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;
or, according to the narrowband air interface resource configuration information and/or the broadband air interface resource configuration information, using the same radio frequency unit to send or receive data.
Preferably, according to the service data information, scheduling and allocating the total amount of the available air interface resources to generate air interface resource configuration information, including:
determining the occupation amount of narrow-band air interface resources and the occupation amount of broadband air interface resources required by the transmission service volume in the service data information;
scheduling and allocating the total amount of the air interface resources according to the occupancy amount of the narrow-band air interface resources, the occupancy amount of the wide-band air interface resources, the narrow-band channel conditions, the wide-band channel conditions and the service grade, and generating air interface resource configuration information;
the service scheduling conditions include: the narrowband channel condition, the wideband channel condition, and the traffic class.
Preferably, the 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 configuration information to generate an air interface resource configuration signal; the air interface resource configuration signal comprises a narrow-band resource configuration signal and/or a broadband resource configuration signal;
and sending the air interface resource configuration 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 narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and transmitting data 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 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.
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 configuration information and/or a second broadband service data packet corresponding to the broadband air interface resource configuration 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 calls a program and is used to:
determining service data information between a base station and a terminal; the service data information comprises transmission service volume and/or service scheduling conditions;
acquiring current available air interface resources;
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; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and transmitting data 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 configuration information sent by a base station; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and the processor is used for transmitting data according to the air interface resource configuration information.
According to the foregoing technical solution, compared with the prior art, the present invention provides an air interface resource scheduling method and device, where the total amount of available air interface resources is scheduled and allocated according to service data information between a base station and a terminal, so as to generate air interface resource configuration information including narrowband air interface resource configuration information and/or broadband air interface resource configuration information, and then data transmission is performed according to the air interface resource configuration information. Therefore, the total amount of the available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, the dynamic allocation of the air interface resources as required is realized when the bidirectional data communication is carried out between the base station and the terminal, and the utilization rate of the air interface resources 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 used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a 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 for scheduling air interface resources according to another embodiment of the present invention;
fig. 5 is a flowchart of a method for scheduling air interface resources applied to a terminal according to an embodiment of the present invention;
fig. 6 is a flowchart of another method for scheduling air interface resources applied to a terminal according to an embodiment of the present invention;
fig. 7 is a flowchart of a method of another air interface resource scheduling method 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 comparing an OFDM waveform and an FBMC waveform according to an embodiment of the present invention;
FIG. 10 is a diagram comparing OFDM and FBMC waveform guard bands provided by embodiments of the present invention;
fig. 11 is a schematic structural diagram of an air interface resource scheduling apparatus according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of an air interface resource scheduling apparatus applied to a terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
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 the base station and the terminal;
wherein the service data information includes transmission traffic and/or service scheduling conditions.
Specifically, the transmission traffic between the base station and the terminal refers to the size of data volume in the wide and narrow band service data packets transmitted when data communication is performed 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 from the terminal; when the transmission traffic is downlink transmission traffic, the base station transmits data packets to the terminal, and at this time, the base station or the core network may acquire the transmission traffic through a background device connected to the base station or the core network, such as a wide-band and narrow-band converged core network system or a trunking dispatching application integrated platform system.
The traffic scheduling conditions include narrowband channel conditions, wideband channel conditions, and traffic classes. The narrowband channel may refer to a channel used for transmitting a narrowband service data packet between the base station and the terminal, 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 the wideband service data packet, 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 condition corresponds to the wideband channel condition one to one, for example, when the narrowband channel condition is a distance between the narrowband channel and the base station, the wideband channel condition is a distance between the wideband channel and the base station.
The service level of the terminal may be preset based on the type of the service data packet with a large number of times transmitted by the terminal itself, and if the number of times of transmitting the "video type service data packet" is large, the service level of the terminal may be set to be "primary", and if the number of times of transmitting the "voice type service data packet" is large, the service level 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 the data packet may be obtained by performing statistical analysis on the process of sending the wide and narrow band service data packets by the terminal for multiple times.
S12, acquiring the current available air interface resources;
the air interface resource refers to a frequency spectrum resource occupied by mutual data transmission between the user terminal and the base station. The available air interface resources in this embodiment are allocable, and include all unused narrowband resources and wideband resources.
S13, according to the service data information, scheduling and allocating the total amount of the available air interface resources to generate air interface resource configuration information;
wherein the air interface resource configuration information includes narrowband air interface resource configuration information and/or broadband air interface resource configuration information.
The narrowband air interface resource configuration information comprises narrowband air interface resources required to be used, and the broadband air interface resource configuration information comprises broadband air interface resources required to be used. The narrowband air interface resource or the wideband air interface resource needed to be used can be zero. That is, only the broadband air interface resource or the narrowband air interface resource can be used for data transmission. In addition, the data transmission can be carried out by simultaneously using the broadband air interface resource and the narrowband air interface resource.
The sum of the configuration quantity of the narrowband air interface resource configuration quantity and the broadband air interface resource configuration quantity is generally less than or equal to the total quantity of the available air interface resources. The narrowband air interface resource allocation amount corresponds to the occupied amount of narrowband air interface resources and is mainly used as air interface resources occupied by a narrowband service data packet 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 occupied by the broadband service data packet in the data communication process.
It should be noted that, when the sum of the narrowband air interface resource allocation amount and the wideband air interface resource allocation amount is greater than the total amount of the available air interface resources, the scheduling allocation of the total amount of the available air interface resources may be repeated many times, and the remaining narrowband air interface resource allocation amount and wideband air interface resource allocation amount after the scheduling allocation are used as the narrowband air interface resource allocation amount and the wideband air interface resource allocation amount when the scheduling allocation operation is performed next time, until the transmission of all the narrowband service data packets and all the wideband service data packets in one data communication process is completed, which not only provides sufficient air interface resources for bidirectional data communication between the base station and the terminal, but also ensures the data integrity of the bidirectional data communication.
It should be noted that, if the base station in the embodiment of the present invention merges the narrowband trunking communication system and the broadband trunking communication system, when the base station is used to perform bidirectional data communication with the terminal, the base station can dynamically allocate available air interface resources in the base station according to actually required narrowband air interface resources and broadband air interface resources in the bidirectional data communication process, so as to maximize the utilization rate of the air interface resources of the base station. Meanwhile, the narrow-band trunking communication system and the wide-band trunking communication system are fused 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, transmitting data according to the air interface resource configuration information.
Optionally, on the basis of this embodiment, step S13 may include:
sending 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;
or, according to the narrowband air interface resource configuration information and/or the broadband air interface resource configuration information, using the same radio frequency unit to send or receive data.
Specifically, radio frequency units of a broadband trunking communication system and a narrowband trunking communication system are combined, and the two systems use the same radio frequency unit;
further, the antenna feeder systems of the broadband trunking communication system and the narrowband trunking communication system are combined, and the two systems use the same feeder system.
It can be seen that the broadband trunking communication system and the narrowband trunking communication system may use the same radio frequency unit, and more preferably, may use the same feeder system in addition to using the same radio frequency unit.
It should be noted that the radio resource control RRC layer entities of the broadband trunking communication system and the narrowband trunking communication system are merged to form a merged RRC layer entity, which is responsible for managing air interface resources of the two systems in a unified manner;
and the media intervention control layer MAC layer entities of the broadband trunking communication system and the narrowband trunking communication system are combined to form a converged MAC layer entity which 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 their own physical layer and digital intermediate frequency, so the unified air interface resource scheduling platform includes a converged RRC layer, an MAC scheduling layer, and a radio frequency, as well as a separated physical layer and a separated digital intermediate frequency, as shown in fig. 2.
In a unified air interface resource scheduling platform, the combined RRC and MAC function entity can perform air interface resource allocation according to respective actual service requirements of two systems under a unified time-frequency resource framework, so as to realize allocation according to requirements, thereby improving the utilization rate of limited frequency spectrum resources. 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 a unified scheduling result, respective baseband signals are modulated into distributed time-frequency resource blocks at digital intermediate frequency, signals of the broadband trunking communication system and signals of the narrowband trunking communication system are combined at a radio frequency stage, an antenna feeder line system is multiplexed, and flexible deployment of common frequency spectrum is achieved.
The new unified air interface resource scheduling device breaks through the restriction that dynamic adjustment cannot be carried out according to the service requirements at present, and realizes the dynamic allocation of the air interface resources of the wide and narrow band cluster systems according to the requirements.
In this embodiment, the total amount of available air interface resources is scheduled and allocated according to the 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 broadband air interface resource configuration information, and then data transmission is performed according to the air interface resource configuration information. Therefore, the total amount of the available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, the dynamic allocation of the air interface resources as required is realized when the bidirectional data communication is carried out between the base station and the terminal, and the utilization rate of the air interface resources is further improved.
The application scenarios of the embodiment of the invention are various, and specifically are as follows:
when a conventional narrowband trunking communication system (e.g., pan-european trunked radio TETRA, digital mobile radio standard DMR, police digital trunking PDT, etc.) mainly based on voice service is deployed simultaneously with a broadband trunking system (e.g., long term evolution L TE of the universal mobile telecommunications technology, etc.) mainly based on data service, the air interface resource scheduling method of the present invention may be employed.
In a public network, when a 2G system (e.g., global system for mobile communications, GSM, etc.) mainly based on a voice service and a 4G broadband system (e.g., L TE, etc.) mainly based on a data service are deployed at the same time, the air interface resource scheduling method of the present invention may be used.
When a narrowband system (including a cluster system and a 2G system) mainly based on voice and a broadband local area network (such as WiFi) are deployed simultaneously in the future, the air interface resource scheduling method can be adopted.
Optionally, on the basis of any embodiment of the foregoing air interface resource scheduling method, 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 a data packet to the base station, at this time, the air interface resource configuration information is mainly used for informing the terminal that the base station has allocated the required wide and narrow band air interface resources for the terminal at the current moment, and the terminal can transmit the narrow band service data packet and the wide band service data packet with corresponding configuration quantities to the base station, so as to realize data communication of transmitting 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 wide and narrow band air interface resource configuration quantities 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 configuration information is used to inform the terminal that the base station has dynamically adjusted 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 configuration 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 configuration information to generate an air interface resource configuration signal; the air interface resource configuration signal comprises a narrow-band resource configuration signal and/or a broadband resource configuration signal;
the terminal is a broadband and narrowband integrated terminal, and can receive both broadband signals and narrowband signals, and only one configuration signal generated by the air interface resource configuration information can be issued to the terminal, either broadband or narrowband.
2) And sending the air interface resource configuration signal to the terminal.
Specifically, the signal waveform conversion is mainly used to make the air interface resource configuration information conform to the baseband signal waveform defined by the wide-band and narrow-band trunking communication systems.
The signal modulation is mainly used for modulating the air interface resource configuration information after signal waveform conversion into a corresponding time frequency resource block. The signal modulation may be accomplished by using a multi-carrier modulation technique such as a filter bank multi-carrier technique (FBMC technique), a general filtering multi-carrier technique (UFMC technique), and a generalized frequency division multiplexing technique (GFDM technique). 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 configuration signal includes narrowband air interface resource configuration quantity, and the broadband resource configuration signal includes broadband air interface resource configuration quantity. In the embodiment of the invention, the narrowband resource allocation signal and the broadband resource allocation signal are generated by sequentially performing signal waveform conversion, signal modulation and frequency conversion on the air interface resource allocation information and are sent to the terminal, so that the terminal can timely receive the signal carrying the information related to the narrowband air interface resource allocation quantity and the broadband air interface resource allocation quantity from the base station, and the reliability of wide and narrowband service data communication 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.
Optionally, on the basis of any of the foregoing embodiments, referring to fig. 3, step S13 may include:
s21, determining the occupation amount of narrow-band air interface resources and the occupation amount of broadband air interface resources required by the transmission service volume in the service data information;
specifically, the transmission traffic between the base station and the terminal refers to the size of data volume in the wide-band and narrow-band service data packets transmitted when data communication is performed between the base station and the terminal, so that the occupation amount of the broadband air interface resources and the occupation amount of the narrow-band air interface resources required by the actually transmitted wide-band and narrow-band service data packets can be determined according to the transmission traffic.
S22, 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, scheduling and allocating the total amount of the air interface resources 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 occupation amount of the narrow-band air interface resources, the occupation amount of the wide-band air interface resources, the wide-band channel conditions, the narrow-band channel conditions and the service grades are taken as the scheduling allocation basis together to perform scheduling allocation on the total amount of the available air interface resources so as to generate the configuration information of the wide-band air interface resources and the configuration information of the narrow-band air interface resources.
By the embodiment, the accuracy and the applicability of scheduling and allocating the total amount of available air interface resources are improved, and the purpose of preferentially allocating according to the service emergency degree is realized.
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, this embodiment discloses another air interface resource scheduling method applied to a base station, please refer to fig. 4, where the method specifically includes the following steps:
s31: receiving a first narrowband service data packet corresponding to narrowband air interface resource allocation quantity and a first broadband service data packet corresponding to broadband air interface resource allocation quantity from a terminal;
the narrowband air interface resource allocation amount and the broadband air interface resource allocation amount are determined according to the uplink transmission service amount.
Specifically, when the transmission traffic between the base station and the terminal is uplink transmission traffic, after the base station sends air interface resource configuration information to the terminal, the base station receives, from the terminal, a first narrowband service data packet corresponding to the narrowband air interface resource configuration amount carried by the air interface resource configuration information and a first broadband service data packet corresponding to the broadband air interface resource configuration amount, so as to implement data communication in which the terminal transmits the wideband and narrowband service data packets to the base station on the basis that the base station dynamically adjusts the wideband and narrowband air interface resource configuration amounts 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 broadband service data packet, and can identify information such as data types, data amounts and the like in the broadband and narrowband service data packets so as to perform corresponding processing operations on the broadband and narrowband service data packets.
It should be noted that, after detecting the first narrowband service data packet and the first broadband service data packet, the base station may further forward the first narrowband service data packet and the first broadband service data packet to a background device, such as a wide-narrowband fusion core network system, a cluster scheduling application integrated platform system.
In the embodiment of the invention, after the transmission traffic is uplink transmission traffic and the air interface resource configuration information is sent to the terminal, the first narrowband service data packet corresponding to the narrowband air interface resource configuration amount and the first broadband service data packet corresponding to the broadband air interface resource configuration amount are received from the terminal and detected, so that the wide and narrowband air interface resources are adjusted as required in the data communication process of transmitting the wide and narrowband service data packets to the base station by the terminal, and the utilization rate of the air interface resources 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, this embodiment discloses another air interface resource scheduling method applied to a base station, where the method specifically includes the following steps:
sending 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 narrowband air interface resource allocation quantity and the broadband air interface resource allocation quantity are generated according to the downlink transmission service quantity.
Specifically, when the transmission traffic between the base station and the terminal is downlink transmission traffic, the base station sends the air interface resource configuration information to the terminal, and then sends the second narrowband service data packet corresponding to the narrowband air interface resource configuration amount carried by the air interface resource configuration information and the second broadband service data packet corresponding to the broadband air interface resource configuration amount to the terminal, so as to implement data communication in which the base station transmits 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 configuration amounts according to the downlink transmission traffic.
It should be noted that, the terminal detects the received second narrowband service data packet and the second broadband service data packet, and can enable the terminal to identify information such as data type, data size, 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.
In the embodiment of the invention, the adjustment of the wide and narrow band air interface resources as required in the data communication process of transmitting the wide and narrow band service data packets to the terminal by the base station is realized by transmitting the second narrowband service data packet corresponding to the narrowband air interface resource allocation amount and transmitting the second broadband service data packet corresponding to the broadband air interface resource allocation amount to the terminal after the transmission service amount is the downlink transmission service amount and the air interface resource allocation information is transmitted to the terminal, thereby improving the utilization rate of the air interface resources.
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, and please refer to fig. 5, where the method specifically includes the following steps:
s41, receiving air interface resource configuration information sent by the base station;
wherein the air interface resource configuration information includes narrowband air interface resource configuration information and/or broadband air interface resource configuration information.
And S42, transmitting data according to the air interface resource configuration information.
Optionally, on the basis of this embodiment, step S42 includes two data transmission modes, one is an uplink data transmission mode, and the other is a downlink data transmission mode, which are respectively described now.
1. An uplink data transmission mode;
referring to fig. 6, step S42 may include:
s51, determining the data packet transmission resource configuration information corresponding to the air interface resource configuration information;
specifically, the data packet transmission resource configuration 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 configuration information and/or a first broadband service data packet corresponding to the broadband air interface resource configuration 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 subjected to filtering isolation;
specifically, because the generated first narrowband service data packet and the first broadband service data packet have mutual interference of signals when being transmitted simultaneously, the first narrowband service data packet and the first broadband service data packet need to be filtered and isolated respectively to eliminate the signal interference, thereby ensuring the integrity of the simultaneous transmission of the wideband service data packet and the narrowband service data packet.
Wherein, the filtering isolation mode can be completed by adopting a filter.
S53, 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 parses the first narrowband service data packet and/or the first broadband service data packet.
The data packet transmission resource configuration information is used as a transmission basis for the first narrow-band service data packet and the first broadband service data packet after the filtering isolation sent to the base station by the terminal, and the first narrow-band service data packet and the first broadband service data packet after the filtering isolation are sent to the base station at the same time, so that the base station fusing the narrow-band trunking communication system and the broadband trunking communication system can independently perform data processing operation on the transmitted first narrow-band service data packet and the transmitted first broadband service data packet at the same time, the data processing speed of the base station on the wide and narrow-band service data packets is accelerated, and the utilization rate of limited air interface resources is improved.
Secondly, in the embodiment of the present invention, the base station transmits the data packet to the terminal, and the received air interface resource configuration information is mainly used for informing the terminal that the wide and narrow band air interface resources required by the terminal have been allocated to the terminal by the base station at the current moment, and the terminal can transmit the first narrow band service data packet and the first wide band service data packet with corresponding configuration amounts to the base station, so as to realize data communication for transmitting the wide and narrow band service data packets to the base station by the terminal on the basis that the base station dynamically adjusts the wide and narrow band air interface resource configuration amounts according to the uplink transmission service amount.
2. A downlink data transmission mode;
referring to fig. 7, step S42 may include:
s61, receiving, from the base station, a second narrowband service data packet corresponding to the narrowband air interface resource configuration information and/or a second broadband service data packet corresponding to the broadband air interface resource configuration information;
specifically, in the embodiment of the present invention, the base station transmits the data packet to the terminal, so after the base station transmits the air interface resource configuration information to the terminal, the base station may further transmit a second narrowband service data packet corresponding to the narrowband air interface resource configuration amount carried by the air interface resource configuration information and a second broadband service data packet corresponding to the broadband air interface resource configuration amount to the terminal, so as to implement data communication in which the base station transmits the wide and narrowband service data packets to the terminal on the basis that the base station dynamically adjusts the wide and narrowband air interface resource configuration amounts according to the downlink transmission service amount.
And 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 broadband service data packet, and can enable the terminal to identify information such as data types, data quantity and the like in the broadband and narrowband service data packets, so as to perform corresponding processing operations on the broadband 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 purpose that the base station reasonably transmits or receives wide and narrow band service data packets of corresponding configuration quantity to the terminal according to the total quantity of available air interface resources after flexible scheduling distribution, and being beneficial to improving the utilization rate of the air interface resources of the base station and the data communication efficiency between the terminal and the base station.
The air interface resource in the above embodiment uses a 5G uniform time frequency resource, and specifically referring to fig. 8, unlike the 4G standard, the size of the 5G air interface time frequency resource block is not a single specification any more, but may have various flexible configurations, and the period and the cyclic prefix CP length are met, so that different service requirements are met, and it is also beneficial to fully utilize 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 on the upper layer. Such as adaptation to internet services, real-time car networking services, voice call video services, television/video broadcast/multicast services.
In the existing L TE system, the adopted OFDM waveform has large side lobe, and the adjacent channel spectrum leakage is serious, so it is difficult to isolate the signals between the adjacent resource blocks well, therefore, in order to isolate the signals in the adjacent time frequency resource blocks effectively, 5G research proposes some new multicarrier modulation waveforms, such as FBMC, etc., as shown in fig. 9.
Compared with the OFDM waveform adopted by the L TE system, the FBMC waveform has good spectrum isolation characteristics, and the passband and stopband of the signal spectrum can be dynamically and flexibly adjusted as required by designing different filter banks, so that the isolation performance is ensured, and at the same time, the narrow transition band is provided, and the useful spectrum is ensured not to be excessively wasted, as shown in fig. 10.
Optionally, on the basis of the above 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 in a base station or a core network.
Referring to fig. 11, the air interface resource scheduling device may include:
an information determining unit 101, configured to determine service data information between a base station and a terminal; the service data information comprises transmission service volume and/or service scheduling conditions;
a resource obtaining unit 102, configured to obtain a current available air interface resource;
a resource allocation unit 103, configured to perform scheduling allocation on the total amount of available air interface resources according to the service data information, and generate air interface resource configuration information; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
a data transmission unit 104, configured to perform data transmission according to the air interface resource configuration information.
Further, the data transmission unit 104 may include:
a first transmission unit, configured to send or receive data 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 a second transmission unit, configured to send or receive data using the same radio frequency unit according to the narrowband air interface resource configuration information and/or the wideband air interface resource configuration information.
In this embodiment, the total amount of available air interface resources is scheduled and allocated according to the 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 broadband air interface resource configuration information, and then data transmission is performed according to the air interface resource configuration information. Therefore, the total amount of the available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, the dynamic allocation of the air interface resources as required is realized when the bidirectional data communication is carried out between the base station and the terminal, and the utilization rate of the air interface resources is further improved.
It should be noted that, for the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of any embodiment of the foregoing air interface resource scheduling apparatus, the method further includes:
and an information sending unit, configured to, by the resource allocation unit, perform scheduling allocation on the total amount of available air interface resources according to the service data information, and after generating air interface resource configuration information, send 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.
Further, the information sending unit includes:
an information processing unit, configured to perform signal waveform conversion, signal modulation, and frequency conversion on the air interface resource configuration information, and generate an air interface resource configuration signal; the air interface resource configuration signal comprises a narrow-band resource configuration signal and/or a broadband resource configuration signal;
and the information sending unit is used for sending the air interface resource configuration 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, for the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of any embodiment of the foregoing air interface resource scheduling apparatus, the resource allocation unit includes:
a usage determining unit, configured to determine a narrowband air interface resource occupancy amount and a broadband air interface resource occupancy amount that are required by the transmission traffic amount in the service data information;
an information generating unit, configured to perform scheduling allocation on the total amount of the air interface resources according to the occupancy amount of the narrowband air interface resources, the occupancy amount of the wideband air interface resources, the narrowband channel conditions, the wideband channel conditions, and the service level, and 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 embodiment, the accuracy and the applicability of scheduling and allocating the total amount of available air interface resources are improved, and the purpose of preferentially allocating according to the service emergency degree is realized.
It should be noted that, for the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of the above embodiment of the air interface resource scheduling method applied to the terminal, another embodiment of the present invention provides an air interface resource scheduling apparatus, which is applied to the terminal, and referring to fig. 12, the air interface resource scheduling apparatus 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 narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
a data transmission unit 202, 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 data packet transmission resource configuration information corresponding to the air interface resource configuration information;
a data generating unit, configured to generate 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;
a data sending unit, configured to send 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 parses 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 broadband service data packet corresponding to the broadband 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 the uplink data transmission and the 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 quantity of the available air interface resources after flexible scheduling distribution, and being beneficial to improving the utilization rate of the air interface resources of the base station and the data communication efficiency between the terminal and the base station.
It should be noted that, for the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of 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 apparatus may include: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
determining service data information between a base station and a terminal; the service data information comprises transmission service volume and/or service scheduling conditions;
acquiring current available air interface resources;
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; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and transmitting data 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 the 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 broadband air interface resource configuration information, and then data transmission is performed according to the air interface resource configuration information. Therefore, the total amount of the available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, the dynamic allocation of the air interface resources as required is realized when the bidirectional data communication is carried out between the base station and the terminal, and the utilization rate of the air interface resources is further improved.
Optionally, on the basis of the embodiments of the method and apparatus for scheduling air interface resources, 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 configuration information sent by a base station; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and the processor is used for transmitting data according to the air interface resource configuration information.
The embodiment of the invention can realize the uplink data transmission and the 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 quantity of the available air interface resources after flexible scheduling distribution, and being beneficial to improving the utilization rate of the air interface resources of 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. A method for scheduling air interface resources is characterized in that the method comprises the following steps:
determining service data information between a base station and a terminal; the service data information comprises transmission service volume and/or service scheduling conditions;
acquiring current available air interface resources;
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; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and transmitting data according to the air interface resource configuration information.
2. The air interface resource scheduling method according to claim 1, wherein, after performing scheduling allocation on the total amount of available air interface resources according to the service data information and generating air interface resource configuration information, the method 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 includes:
sending 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;
or, according to the narrowband air interface resource configuration information and/or the broadband air interface resource configuration information, using the same radio frequency unit to send or receive data.
4. The air interface resource scheduling method according to claim 1, wherein performing scheduling allocation on the total amount of available air interface resources according to the service data information to generate air interface resource configuration information includes:
determining the occupation amount of narrow-band air interface resources and the occupation amount of broadband air interface resources required by the transmission service volume in the service data information;
scheduling and allocating the total amount of the air interface resources according to the occupancy amount of the narrow-band air interface resources, the occupancy amount of the wide-band air interface resources, the narrow-band channel conditions, the wide-band channel conditions and the service grade, and generating air interface resource configuration information;
the service scheduling conditions include: the narrowband channel condition, the wideband channel condition, and the traffic class.
5. The method according to claim 2, wherein 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 configuration information to generate an air interface resource configuration signal; the air interface resource configuration signal comprises a narrow-band resource configuration signal and/or a broadband resource configuration signal;
and sending the air interface resource configuration signal to the terminal.
6. 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 narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and transmitting data 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 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 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.
8. The air interface resource scheduling method according to claim 6, wherein performing 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 configuration information and/or a second broadband service data packet corresponding to the broadband air interface resource configuration 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 calls a program and is used to:
determining service data information between a base station and a terminal; the service data information comprises transmission service volume and/or service scheduling conditions;
acquiring current available air interface resources;
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; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and transmitting data 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 configuration information sent by a base station; the air interface resource configuration information comprises narrowband air interface resource configuration information and/or broadband air interface resource configuration information;
and the processor is used for transmitting data according to the air interface resource configuration information.
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