CN110769435A - Communication method, apparatus, system, and computer-readable storage medium - Google Patents
Communication method, apparatus, system, and computer-readable storage medium Download PDFInfo
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- CN110769435A CN110769435A CN201810822696.4A CN201810822696A CN110769435A CN 110769435 A CN110769435 A CN 110769435A CN 201810822696 A CN201810822696 A CN 201810822696A CN 110769435 A CN110769435 A CN 110769435A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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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 disclosure relates to a communication method, a communication device, a communication system and a computer-readable storage medium, and relates to the technical field of internet of things. The method of the present disclosure comprises: acquiring downlink service data corresponding to a terminal; determining downlink service quality according to the downlink service data; selecting a corresponding downlink coverage extension grade according to the downlink service quality; and sending the downlink coverage extension grade to a base station corresponding to the terminal so that the base station and the terminal can communicate according to the downlink coverage extension grade. The method disclosed by the invention does not need to change the signaling flow of the communication between the existing base station and the terminal, and selects the proper coverage extension grade based on the downlink service quality under the condition that the terminal cannot report the measurement report information, so that the downlink service quality can be improved, and the success rate of the downlink service is further improved.
Description
Technical Field
The present disclosure relates to the field of internet of things technology, and in particular, to a communication method, apparatus, system, and computer-readable storage medium.
Background
The main characteristics of NB-IoT (Narrow Band Internet of Things) are ultra-far coverage, low power consumption and large connection. In order to achieve Coverage Extension (CE) to satisfy NB-IoT with low channel quality, which is deployed at the edge of a cell or in a basement, etc., a base station and NB-IoT UE repeatedly transmit data to be transmitted by using a small number of subcarriers (subcarriers) so as to improve the success rate of correctly decoding the data at a receiving end.
Currently, the coverage extension is divided into three levels, and different coverage extension levels (CE Level) respectively achieve signal energy attenuation against Maximum Coupling Loss (MCL) of 144dB, 154dB and 164 dB. The base station and the NB-IoT terminal select the corresponding message repeat transmission times according to the CE Level.
Disclosure of Invention
The inventor finds that: the base station adjusts the coverage extension level corresponding to the downlink information according to the measurement report information of the terminal, which is a reasonable scheme, but in the actual operation process of the narrowband internet of things, the terminal cannot report the measurement report information at an air interface, so that the base station cannot adjust the reasonable coverage extension level value for the terminal. The base station can only set the CE Level in a unified way facing the terminal, so that the success rate of the downlink service of the terminal does not reach a reasonable degree.
One technical problem to be solved by the present disclosure is: how to set a reasonable coverage extension level for the downlink service sent by the base station to the terminal, and improve the success rate of the downlink service.
According to some embodiments of the present disclosure, there is provided a communication method including: acquiring downlink service data corresponding to a terminal; determining downlink service quality according to the downlink service data; selecting a corresponding downlink coverage extension grade according to the downlink service quality; and sending the downlink coverage extension grade to a base station corresponding to the terminal so that the base station and the terminal can communicate according to the downlink coverage extension grade.
In some embodiments, the downlink quality of service includes: a downlink service success rate; determining the downlink service quality according to the downlink service data comprises: determining the success rate of the downlink service according to the total number of successful confirmation times of the downlink session and the total number of requests of the downlink session; and determining the downlink service quality according to the downlink service success rate.
In some embodiments, the downlink quality of service includes: downlink service delay; determining the downlink service quality according to the downlink service data comprises: determining downlink service time delay according to the total transmission time delay of the downlink session and the total number of successful confirmation times of the downlink session; and determining the downlink service quality according to the downlink service delay.
In some embodiments, the downlink service quality is determined according to a weighted value of the downlink service success rate and the downlink service delay.
In some embodiments, different downlink coverage extension levels correspond to different threshold ranges; selecting the corresponding downlink coverage extension grade according to the downlink service quality comprises the following steps: and comparing the downlink service quality with different threshold ranges to determine the downlink coverage extension level corresponding to the downlink service quality.
In some embodiments, sending the downlink coverage extension level to the base station corresponding to the terminal includes: and sending a coverage extension level adjustment command to a Mobile Management Entity (MME) corresponding to the terminal through an interactive interface, wherein the coverage extension level adjustment command comprises a downlink coverage extension level and an identifier of the terminal, so that the MME can send the downlink coverage extension level to a base station corresponding to the terminal.
In some embodiments, the MME sends the downlink coverage extension level to the base station corresponding to the terminal through the S1AP interface by using the terminal context modification request message; and the MME finds the identifier of the base station corresponding to the terminal and the corresponding S1AP interface according to the identifier of the terminal.
In some embodiments, the obtaining of the downlink service data corresponding to the terminal includes: and collecting downlink service data corresponding to the terminal at an S11-U interface between the MME and the SGW.
According to further embodiments of the present disclosure, there is provided a communication apparatus including: the data acquisition module is used for acquiring downlink service data corresponding to the terminal; a service quality determining module, configured to determine downlink service quality according to the downlink service data; the parameter determining module is used for selecting a corresponding downlink coverage extension grade according to the downlink service quality; and the information sending module is used for sending the downlink coverage extension grade to the base station corresponding to the terminal so that the base station and the terminal can communicate according to the downlink coverage extension grade.
In some embodiments, the downlink quality of service includes: a downlink service success rate; the service quality determining module is used for determining the success rate of the downlink service according to the total number of successful confirmation times of the downlink session and the total number of requests of the downlink session, and determining the quality of the downlink service according to the success rate of the downlink service.
In some embodiments, the downlink quality of service includes: downlink service delay; the service quality determining module is used for determining downlink service time delay according to the total transmission time delay of the downlink session and the total number of successful confirmation times of the downlink session, and determining downlink service quality according to the downlink service time delay.
In some embodiments, the service quality determination module is configured to determine the downlink service quality according to the weighted value of the downlink service success rate and the downlink service delay.
In some embodiments, different downlink coverage extension levels correspond to different threshold ranges; the parameter determining module is used for comparing the downlink service quality with different threshold ranges and determining the extension level of the downlink coverage range corresponding to the downlink service quality.
In some embodiments, the information sending module is configured to send a coverage extension level adjustment command to a mobility management entity MME corresponding to the terminal through the interactive interface, where the coverage extension level adjustment command includes a downlink coverage extension level and an identifier of the terminal, so that the MME sends the downlink coverage extension level to a base station corresponding to the terminal.
In some embodiments, the data acquisition module is configured to collect downlink traffic data corresponding to the terminal at an S11-U interface between the mobility management entity MME and the serving gateway SGW.
According to still other embodiments of the present disclosure, there is provided a communication apparatus including: a memory; and a processor coupled to the memory, the processor configured to perform the communication method of any of the preceding embodiments based on instructions stored in the memory device.
According to still further embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the communication method of any of the preceding embodiments.
According to still further embodiments of the present disclosure, there is provided a communication system including: the communication device and the mobility management entity MME of any of the foregoing embodiments are configured to receive the downlink coverage extension level sent by the communication device through the interactive interface, and send the downlink coverage extension level to the base station corresponding to the terminal.
In some embodiments, the MME is configured to receive a sending coverage extension level adjustment command sent by the communication device, where the coverage extension level adjustment command includes a downlink coverage extension level and an identifier of the terminal, find, according to the identifier of the terminal, the identifier of the base station corresponding to the terminal and a corresponding S1AP interface, and send, through an S1AP interface, the downlink coverage extension level to the base station corresponding to the terminal by using a terminal context modification request message.
The method determines the downlink service quality according to the downlink service data from the base station to the terminal, and then selects the corresponding downlink coverage extension grade according to the downlink service quality and sends the downlink coverage extension grade to the base station, so that the base station and the terminal can communicate according to the coverage extension grade. The method disclosed by the invention does not need to change the signaling flow of the communication between the existing base station and the terminal, and selects the proper coverage extension grade based on the downlink service quality under the condition that the terminal cannot report the measurement report information, so that the downlink service quality can be improved, and the success rate of the downlink service is further improved.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure 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 some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 illustrates a flow diagram of a communication method of some embodiments of the present disclosure.
Fig. 2 shows a flow diagram of a communication method of further embodiments of the present disclosure.
Fig. 3 illustrates a schematic structural diagram of a communication device of some embodiments of the present disclosure.
Fig. 4 shows a schematic structural diagram of a communication device of further embodiments of the present disclosure.
Fig. 5 shows a schematic structural diagram of a communication device according to further embodiments of the present disclosure.
Fig. 6 illustrates a structural schematic diagram of a communication system of some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The present disclosure provides a communication method, which may be used by a base station to adjust a downlink coverage extension level corresponding to a terminal, and some embodiments of the communication method of the present disclosure are described below with reference to fig. 1.
Fig. 1 is a flow chart of some embodiments of the disclosed communication method. As shown in fig. 1, the method of this embodiment includes: steps S102 to S108.
In step S102, downlink service data corresponding to the terminal is acquired.
Downlink service data corresponding to the terminal can be acquired through an S11-U interface between an MME (Mobility Management Entity) and an SGW (serving gateway); or acquiring the downlink service data through the S5 or S8 interface. The user plane downlink service data can be acquired by a DPI (Deep Packet Inspection) device deployed by an operator by using a DPI (Deep Packet Inspection) technology.
And acquiring user plane service data through an S11-U interface between the MME and the SGW, namely acquiring downlink service data of all terminals with the MME attached to the network. Different terminals can be distinguished according to the destination address of the downlink service data, and the downlink service data corresponding to each terminal is determined.
In step S104, the downlink traffic quality is determined according to the downlink traffic data.
In some embodiments, the downlink quality of service includes: and the success rate of the downlink service. The total number of successful downlink session acknowledgements and the total number of downlink session requests can be counted according to the downlink service data, the success rate of the downlink service is determined according to the total number of successful downlink session acknowledgements and the total number of downlink session requests, and the quality of the downlink service is determined according to the success rate of the downlink service.
For example, when a CoAP (Constrained Application Protocol) is used in the internet of things, the number of downlink CoAP CON (request to be confirmed) event request messages initiated to the terminal and the number of times of successful responses of the CoAP CON event response ACK (response message) messages may be detected, and the ratio of the two may be calculated, so as to determine the success rate of the downlink service. The following formula can be used to calculate the downlink traffic success rate.
The higher the success rate of the downlink service is, the higher the quality of the downlink service is. Different threshold ranges of the success rate of the downlink service can be set, corresponding to different downlink service quality grades. And comparing the success rate of the downlink service corresponding to the terminal with a threshold range, thereby determining the quality grade of the downlink service of the terminal.
In some embodiments, the downlink quality of service includes: and (4) downlink service time delay. The total transmission delay of the downlink session and the total number of successful downlink session acknowledgements can be counted, the downlink service delay is determined according to the total transmission delay of the downlink session and the total number of successful downlink session acknowledgements, the downlink service delay is determined, and the downlink service quality is determined according to the downlink service delay.
For example, when the CoAP protocol is adopted in the internet of things, the time stamp of the first data request message of the downlink CoAP CON session initiated to the terminal and the time duration elapsed between the last data response ACK message of the CoAP CON session may be recorded, where the unit is ms and is used as the total transmission delay of the downlink session. And determining the downlink service delay according to the total transmission delay of the downlink session and the number of times of successful response of the CoAPCON event response ACK message. The following formula can be used to calculate the downlink traffic delay.
The smaller the downlink service delay, the higher the downlink service quality. Different downlink service delay threshold ranges can be set, corresponding to different downlink service quality grades. And comparing the downlink service delay corresponding to the terminal with the delay threshold range, thereby determining the downlink service quality grade of the terminal.
In some embodiments, the downlink service quality is determined according to a weighted value of the downlink service success rate and the downlink service delay. Different weights can be set for the success rate of the downlink service and the delay of the downlink service according to requirements or test experience. Because the success rate of the downlink service is positively correlated with the quality of the downlink service, and the delay of the downlink service is negatively correlated with the quality of the downlink service, when the weight is set, the weight of the delay of the downlink service can be considered to be selected as a negative number, so that the larger the weighting result is, the better the quality of the downlink service is. Similarly, different downlink qos threshold ranges may be set corresponding to different downlink qos classes. The downlink service quality grade of the terminal is determined by comparing the weighted value of the downlink service success rate and the downlink service time delay corresponding to the terminal with the quality threshold range.
In step S106, a corresponding downlink coverage extension level is selected according to the downlink service quality.
For example, the downlink service quality may be divided into three levels, and the three levels respectively correspond to three levels of coverage extension levels (CE levels). The CE Level corresponding to the high quality of the downlink service is 0, the CE Level corresponding to the medium quality of the downlink service is 1, and the CE Level corresponding to the low quality of the downlink service is 2. For different terminals, due to different downlink service qualities, the finally determined CE levels corresponding to the terminals may also be different.
In step S108, the downlink coverage extension level is sent to the base station corresponding to the terminal, so that the base station and the terminal perform communication according to the downlink coverage extension level.
In some embodiments, the coverage extension level adjustment command may be sent to the MME corresponding to the terminal through the interactive interface. The coverage extension level adjustment command may include a downlink coverage extension level and an identifier of the terminal. For example, the end user Number MDN (Mobile Directory Number) or IMSI (International Mobile Subscriber identity Number), and the CE Level value may be mapped in the interface protocol. For example, the coverage extension level adjustment command may be sent to the MME via the Diameter protocol.
Further, the MME may find the identifier of the base station corresponding to the terminal and the corresponding S1AP interface according to the identifier of the terminal. After receiving the MDN or IMSI of the terminal and the corresponding CE Level value, the MME network element may associate information such as a base station (eNB) Identifier, an ECGI (E-UTRAN Cell Global Identifier, E-UTRAN Cell Global Identifier Cell), an MME UE S1AP ID, and an eNB UE S1AP ID of the terminal in the dynamic database.
Further, the MME may send the downlink coverage extension level to the base station corresponding to the terminal through the S1AP interface by using a terminal context modification REQUEST message (UE context modification REQUEST). In the S1AP interface, the UE CE Level parameter field may be newly added in the UE CONTEXT MODIFICATION REQUEST message, and the MME maps the CE Level value of the terminal to the field, and further sends the field to the base station.
After receiving the CE Level parameter, the base station corresponding to the terminal may update the CE Level value of the terminal according to the eNB UE S1AP ID. And then the base station and the terminal select the corresponding message repeated transmission times according to the CE Level to carry out communication.
The method of the embodiment determines the downlink service quality according to the downlink service data from the base station to the terminal, and further selects the corresponding downlink coverage extension grade according to the downlink service quality and sends the downlink coverage extension grade to the base station, so that the base station and the terminal communicate according to the coverage extension grade. The method of the embodiment does not need to change the signaling flow of the communication between the existing base station and the terminal, and selects the proper coverage extension grade based on the downlink service quality under the condition that the terminal cannot report the measurement report information, so that the downlink service quality can be improved, and the success rate of the downlink service is further improved.
Further embodiments of the communication method of the present disclosure are described below in conjunction with fig. 2.
Fig. 2 is a flow chart of further embodiments of the communication method of the present disclosure. As shown in fig. 2, the method of this embodiment includes: steps S202 to S214.
Step S202, the communication device obtains downlink service data of the terminal through an S11-U interface between the MME and the SGW.
Step S204, the communication device determines the downlink service quality of the terminal according to the downlink service data of the terminal.
Step S206, the communication device selects a corresponding downlink coverage extension level according to the downlink service quality.
In step S208, the communication device transmits a coverage extension level adjustment command to the MME corresponding to the terminal through the interactive interface.
The MME may send a message response to the communication device after receiving the coverage extension level adjustment command.
In step S210, the MME may find the identifier of the base station corresponding to the terminal and the corresponding S1AP interface according to the identifier of the terminal.
In step S212, the MME may send the downlink coverage extension level to the base station corresponding to the terminal by using the terminal context modification request message through the S1AP interface.
In step S214, after extracting the CE Level parameter from the terminal context modification request message, the base station updates the CE Level value of the terminal according to the eNB UES1AP ID.
The present disclosure also provides a communication device, described below in conjunction with fig. 3.
Fig. 3 is a block diagram of some embodiments of a communication device of the present disclosure. As shown in fig. 3, the apparatus 30 of this embodiment includes: a data acquisition module 302, a service quality determination module 304, a parameter determination module 306 and an information sending module 308.
A data obtaining module 302, configured to obtain downlink service data corresponding to the terminal.
In some embodiments, the data obtaining module 302 is configured to collect downlink traffic data corresponding to the terminal at an S11-U interface between the mobility management entity MME and the serving gateway SGW.
A service quality determining module 304, configured to determine downlink service quality according to the downlink service data.
In some embodiments, the downlink quality of service includes: a downlink service success rate; the service quality determining module 304 is configured to determine a success rate of the downlink service according to the total number of successful acknowledgements of the downlink session and the total number of requests of the downlink session, and determine the quality of the downlink service according to the success rate of the downlink service.
In some embodiments, the downlink quality of service includes: downlink service delay; the service quality determination module 304 is configured to determine a downlink service delay according to the total transmission delay of the downlink session and the total number of successful confirmation times of the downlink session, and determine downlink service quality according to the downlink service delay.
In some embodiments, the service quality determination module 304 is configured to determine the downlink service quality according to the weighted value of the downlink service success rate and the downlink service delay.
The parameter determining module 306 is configured to select a corresponding downlink coverage extension level according to the downlink service quality.
In some embodiments, different downlink coverage extension levels correspond to different threshold ranges; the parameter determining module 306 is configured to compare the downlink service quality with different threshold ranges, and determine a downlink coverage extension level corresponding to the downlink service quality.
The information sending module 308 is configured to send the downlink coverage extension level to a base station corresponding to the terminal, so that the base station and the terminal perform communication according to the downlink coverage extension level.
In some embodiments, the information sending module 308 is configured to send a coverage extension level adjustment command to a mobility management entity MME corresponding to the terminal through an interactive interface, where the coverage extension level adjustment command includes a downlink coverage extension level and an identifier of the terminal, so that the MME sends the downlink coverage extension level to a base station corresponding to the terminal.
The communication devices in the embodiments of the present disclosure may each be implemented by various computing devices or computer systems, which are described below in conjunction with fig. 4 and 5.
Fig. 4 is a block diagram of some embodiments of a communication device of the present disclosure. As shown in fig. 4, the apparatus 40 of this embodiment includes: a memory 410 and a processor 420 coupled to the memory 410, the processor 420 configured to perform a communication method in any of the embodiments of the present disclosure based on instructions stored in the memory 410.
Memory 410 may include, for example, system memory, fixed non-volatile storage media, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), a database, and other programs.
Fig. 5 is a block diagram of further embodiments of the communication device of the present disclosure. As shown in fig. 5, the apparatus 50 of this embodiment includes: memory 510 and processor 520 are similar to memory 410 and processor 420, respectively. An input output interface 530, a network interface 540, a storage interface 550, and the like may also be included. These interfaces 530, 540, 550 and the connections between the memory 510 and the processor 520 may be, for example, via a bus 560. The input/output interface 530 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 540 provides a connection interface for various networking devices, such as a database server or a cloud storage server. The storage interface 550 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also provides a computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the communication method of any of the foregoing embodiments.
The present disclosure also provides a communication system, described below in conjunction with fig. 6.
Fig. 6 is a block diagram of some embodiments of the communication system of the present disclosure. As shown in fig. 6, the system 6 of this embodiment includes: the communications apparatus 30, 40 or 50 of any of the preceding embodiments, and the MME 62.
The MME62 is configured to receive the downlink coverage extension level sent by the communication apparatus through the interactive interface, and send the downlink coverage extension level to the base station corresponding to the terminal.
Further, the MME62 is configured to receive a sending coverage extension level adjustment command sent by the communication apparatus, where the coverage extension level adjustment command includes a downlink coverage extension level and an identifier of the terminal, find, according to the identifier of the terminal, the identifier of the base station corresponding to the terminal and the corresponding S1AP interface, and send, through the S1AP interface, the downlink coverage extension level to the base station corresponding to the terminal by using the terminal context modification request message.
Further, the communication system 6 may further include a base station 64, configured to receive the downlink coverage extension level corresponding to the terminal sent by the MME 62. Further, the base station 64 is configured to update the coverage extension Level value of the terminal according to the eNB UE S1AP ID after extracting the CE Level parameter from the terminal context modification request message.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (19)
1. A method of communication, comprising:
acquiring downlink service data corresponding to a terminal;
determining downlink service quality according to the downlink service data;
selecting a corresponding downlink coverage extension grade according to the downlink service quality;
and sending the downlink coverage extension grade to a base station corresponding to the terminal so that the base station and the terminal can communicate according to the downlink coverage extension grade.
2. The communication method according to claim 1,
the downlink service quality comprises: a downlink service success rate;
the determining the downlink service quality according to the downlink service data includes:
determining the success rate of the downlink service according to the total number of successful confirmation times of the downlink session and the total number of requests of the downlink session;
and determining the downlink service quality according to the downlink service success rate.
3. The communication method according to claim 1,
the downlink service quality comprises: downlink service delay;
the determining the downlink service quality according to the downlink service data includes:
determining downlink service time delay according to the total transmission time delay of the downlink session and the total number of successful confirmation times of the downlink session;
and determining the downlink service quality according to the downlink service time delay.
4. The communication method according to claim 1,
the downlink service quality is determined according to the weighted value of the downlink service success rate and the downlink service time delay.
5. The communication method according to claim 1,
different downlink coverage extension levels correspond to different threshold ranges;
the selecting the corresponding downlink coverage extension grade according to the downlink service quality comprises:
and comparing the downlink service quality with different threshold ranges, and determining the downlink coverage extension level corresponding to the downlink service quality.
6. The communication method according to claim 1,
the sending the downlink coverage extension level to the base station corresponding to the terminal comprises:
and sending a coverage extension level adjustment command to a Mobile Management Entity (MME) corresponding to the terminal through an interactive interface, wherein the coverage extension level adjustment command comprises the downlink coverage extension level and the identifier of the terminal, so that the MME can send the downlink coverage extension level to a base station corresponding to the terminal.
7. The communication method according to claim 6,
the MME sends the downlink coverage extension level to a base station corresponding to the terminal by using a terminal context modification request message through an S1AP interface;
and the MME searches the identifier of the base station corresponding to the terminal and the corresponding S1AP interface according to the identifier of the terminal.
8. The communication method according to any one of claims 1 to 7,
the acquiring of the downlink service data corresponding to the terminal includes:
and collecting downlink service data corresponding to the terminal at an S11-U interface between the MME and the SGW.
9. A communication device, comprising:
the data acquisition module is used for acquiring downlink service data corresponding to the terminal;
a service quality determining module, configured to determine downlink service quality according to the downlink service data;
a parameter determining module, configured to select a corresponding downlink coverage extension level according to the downlink service quality;
and the information sending module is used for sending the downlink coverage extension grade to a base station corresponding to the terminal so that the base station and the terminal can communicate according to the downlink coverage extension grade.
10. The communication device of claim 9,
the downlink service quality comprises: a downlink service success rate;
the service quality determining module is used for determining the success rate of the downlink service according to the total number of successful confirmation times of the downlink session and the total number of requests of the downlink session, and determining the quality of the downlink service according to the success rate of the downlink service.
11. The communication device of claim 9,
the downlink service quality comprises: downlink service delay;
the service quality determining module is used for determining downlink service time delay according to the total transmission time delay of the downlink session and the total number of successful confirmation times of the downlink session, and determining downlink service quality according to the downlink service time delay.
12. The communication device of claim 9,
the service quality determining module is used for determining the downlink service quality according to the downlink service success rate and the weighted value of the downlink service time delay.
13. The communication device of claim 9,
different downlink coverage extension levels correspond to different threshold ranges;
the parameter determining module is used for comparing the downlink service quality with different threshold ranges and determining a downlink coverage extension level corresponding to the downlink service quality.
14. The communication device of claim 9,
the information sending module is configured to send a coverage extension level adjustment command to a mobility management entity MME corresponding to the terminal through an interactive interface, where the coverage extension level adjustment command includes the downlink coverage extension level and an identifier of the terminal, so that the MME sends the downlink coverage extension level to a base station corresponding to the terminal.
15. The communication device of any one of claims 9-14,
the data acquisition module is used for acquiring downlink service data corresponding to the terminal at an S11-U interface between the MME and the SGW.
16. A communication device, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the communication method of any of claims 1-8 based on instructions stored in the memory device.
17. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
18. A communication system, comprising:
the communication device of any one of claims 9-15; and
and the mobile management entity MME is used for receiving the downlink coverage extension grade sent by the communication device through an interactive interface and sending the downlink coverage extension grade to a base station corresponding to the terminal.
19. The communication system of claim 18,
the MME is configured to receive a sending coverage extension level adjustment command sent by the communication apparatus, where the coverage extension level adjustment command includes the downlink coverage extension level and the identifier of the terminal, find, according to the identifier of the terminal, the identifier of the base station corresponding to the terminal and the corresponding S1AP interface, and send, through the S1AP interface, the downlink coverage extension level to the base station corresponding to the terminal by using a terminal context modification request message.
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