CN108696906B - User terminal access delay optimization method, base station and system in Internet of things - Google Patents

User terminal access delay optimization method, base station and system in Internet of things Download PDF

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CN108696906B
CN108696906B CN201710154264.6A CN201710154264A CN108696906B CN 108696906 B CN108696906 B CN 108696906B CN 201710154264 A CN201710154264 A CN 201710154264A CN 108696906 B CN108696906 B CN 108696906B
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user terminal
module
scheduling
receiving
bandwidth
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CN108696906A (en
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喻炜
陶雄强
严玉平
冯广华
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Potevio Information Technology Co Ltd
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Potevio Information Technology Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/20Negotiating bandwidth
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26Resource reservation

Abstract

The invention provides a method, a base station and a system for optimizing the access time delay of a user terminal in the Internet of things, wherein the method comprises the steps of receiving a connection establishment request message sent by the user terminal and admitting and controlling the user terminal to confirm that the user terminal has broadband transmission capacity; carrying out broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources of the base station side; sending a connection establishing message to a user terminal, reserving resources and starting uplink authorization; and scheduling the corresponding bandwidth to transmit the service data according to the actual service requirement. The invention carries out broadband scheduling on the terminal supporting broadband transmission in the attachment process, reduces the signaling transmission delay in the air interface attachment process and ensures that the user terminal is quickly accessed into the system.

Description

User terminal access delay optimization method, base station and system in Internet of things
Technical Field
The invention relates to the technical field of communication, in particular to a method, a base station and a system for optimizing access delay of a user terminal in the Internet of things.
Background
At present, with the rapid development of wireless communication technology, more and more industries also use wireless communication systems to perform service transmission, and then the field of internet of things also uses TD-LTE technology to perform service transmission.
In the prior art, it is considered that a narrowband service with a small transmission data volume and a broadband service with a large transmission data volume exist in the internet of things. Because the transmission data volume of the internet of things is small, the allocated resources are less, the condition of wider coverage is considered, and a narrower bandwidth is often allocated for transmission when the internet of things is accessed.
However, because the amount of data transmitted by the conventional internet of things is small, the communication resource allocation is small, and a wider coverage condition needs to be considered, and a narrower bandwidth is often allocated for transmission when accessing. When the transmission resources are small, the radio frame length is lengthened in the time domain, so that the access delay is increased when the terminal performs access. However, there may be broadband service transmission in the internet of things system, and for a terminal transmitting the broadband service, if a narrowband access mode is still adopted, the access delay of the broadband terminal will be inevitably affected.
Disclosure of Invention
In order to overcome the problems or at least partially solve the problems, the invention provides an access delay optimization method based on a TD-LTE (time division-Long term evolution) Internet of things, which is used for carrying out broadband scheduling on a terminal supporting broadband transmission in an attachment process, reducing the signaling transmission delay in an air interface attachment process and ensuring that the terminal is quickly accessed into a system.
According to one aspect of the present invention, a method for optimizing access delay of a user terminal in an internet of things is provided, which is characterized by comprising:
receiving a connection establishment request message sent by a user terminal, receiving and controlling the user terminal, and confirming that the user terminal has broadband transmission capability;
carrying out broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources of the base station side;
sending a connection establishing message to a user terminal, reserving resources and starting uplink authorization;
and scheduling the corresponding bandwidth to transmit the service data according to the actual service requirement.
According to another aspect of the present invention, there is provided a base station for optimizing access delay of a user terminal in an internet of things, comprising a confirmation module, a first scheduling module, a connection establishment module, and a second scheduling module:
the confirmation module is connected with the first scheduling module and used for receiving a connection establishment request message sent by a user terminal, receiving and controlling the user terminal and confirming that the user terminal has broadband transmission capability;
the first scheduling module is respectively connected with the confirmation module and the connection establishment module and is used for carrying out broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources at the base station side;
the connection establishing module is respectively connected with the first scheduling module and the second scheduling module and used for sending a connection establishing message to the user terminal, reserving resources and starting uplink authorization;
and the second scheduling module is connected with the connection establishing module and used for scheduling corresponding bandwidth to transmit the service data according to the actual service requirement.
According to another aspect of the present invention, there is provided a system for optimizing access delay of a ue in the internet of things, comprising:
the base station is connected with the user terminal and comprises a confirmation module, a first scheduling module, a connection establishing module and a second scheduling module;
the confirmation module is connected with the first scheduling module and used for receiving a connection establishment request message sent by a user terminal, receiving and controlling the user terminal and confirming that the user terminal has broadband transmission capability;
the first scheduling module is respectively connected with the confirmation module and the connection establishment module and is used for carrying out broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources at the base station side;
the connection establishing module is respectively connected with the first scheduling module and the second scheduling module and used for sending a connection establishing message to the user terminal, reserving resources and starting uplink authorization;
and the second scheduling module is connected with the connection establishing module and used for scheduling corresponding bandwidth to transmit the service data according to the actual service requirement.
The invention provides a method, a base station and a system for optimizing the access delay of a user terminal in the Internet of things.
Drawings
Fig. 1 is a schematic overall flow chart of a method for optimizing access delay of a user terminal in the internet of things according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for optimizing access delay of a user terminal in the internet of things according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an overall structure of an access delay optimization base station of a user terminal in the internet of things according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an overall structure of a system for optimizing access delay of a user terminal in the internet of things according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention provides an access delay optimization method based on a TD-LTE (time division-Long term evolution) Internet of things, which is used for carrying out broadband scheduling on a terminal supporting broadband transmission in an attachment process, reducing the signaling transmission delay in an air interface attachment process and ensuring that the terminal is quickly accessed into a system.
TD-LTE, also known as LTE-TDD, i.e. Time Division Long Term Evolution (Time Division Long Term Evolution), is established by all large enterprises and operators in the world covered by 3GPP organizations, and the FDD and TDD modes in the LTE standard are substantially the same, and there is only a small difference between the two modes, and the similarity reaches 90%. TDD (Time division duplexing), one of duplexing techniques used in mobile communication technology, corresponds to FDD frequency division duplexing. TD-LTE is a technology of TDD version of LTE, and FDD-LTE is a technology of FDD version of LTE. TD-SCDMA is a CDMA (code division multiple Access) technology, and TD-LTE is an OFDM (orthogonal frequency division multiplexing) technology. The two are different from coding and decoding, frame format, air interface, signaling and network architecture.
Fig. 1 is a schematic flowchart illustrating an overall process of a method for optimizing access delay of a user terminal in the internet of things according to an embodiment of the present invention. In general, the method comprises the following steps:
s1, receiving the connection establishment request message sent by the user terminal and receiving and controlling the user terminal, confirming that the user terminal has broadband transmission capability;
s2, based on the user terminal bandwidth ability and the base station side bandwidth resource, carrying out broadband scheduling;
s3, sending a connection establishing message to the user terminal, reserving resources and starting uplink authorization;
and S4, scheduling the corresponding bandwidth according to the actual service requirement to transmit the service data.
In another specific embodiment of the present invention, a method for optimizing an access delay of a user terminal in an internet of things, where the step of receiving a connection establishment request message sent by the user terminal and admission-controlling the user terminal further includes:
and receiving an RRC connection establishment request message sent by the user terminal, acquiring the maximum bandwidth capacity of uplink and downlink transmission of the user terminal, and performing admission control.
In another specific embodiment of the present invention, a method for optimizing an access delay of a user terminal in an internet of things, where the user terminal has a broadband transmission capability, further includes: the maximum bandwidth capacity of uplink and downlink transmission of the user terminal is detected, and the user terminal is confirmed to have broadband transmission capacity based on the maximum bandwidth capacity.
In another specific embodiment of the present invention, a method for optimizing access delay of a user terminal in the internet of things, where the step of sending a connection establishment message to the user terminal, reserving resources, and performing uplink authorization opening further includes:
and after the RRC Connection Setup message is sent, reserving resources, sending uplink opening authorization to the user terminal, and informing the user terminal of data transmission.
In another specific embodiment of the present invention, a method for optimizing user terminal access delay in the internet of things, the step of scheduling a corresponding bandwidth according to an actual service requirement to transmit service data further includes:
and in the RRC connection Reconfiguration process, after receiving an RRCConnection Reconfiguration Complete message of successful RRC connection Reconfiguration, scheduling according to the actual service bandwidth requirement.
Referring to fig. 2, another embodiment of the present invention is a flowchart illustrating a method for optimizing an access delay of a ue in the internet of things. The method comprises the following steps:
and the eNB acquires the maximum bandwidth capacity of uplink and downlink transmission of the UE from the RRC connection establishment request message sent by the UE and performs admission control.
And the eNB admits the UE, detects the maximum bandwidth capacity of uplink and downlink transmission of the UE when the scheduling of the RRC connection establishment completion message of the terminal is completed, and performs broadband scheduling according to the bandwidth capacity of the UE and the bandwidth resources on the eNB side if the UE has broadband transmission capacity, thereby reducing the transmission delay of the air interface signaling.
After the eNB sends the RRC connection establishment RRCConnectionSetup message, the UE side is considered to be capable of rapidly processing and generating the RRC connection establishment RRCConnectionSetupComplex message, and the RRCConnectionSetup message is sent to the eNB side, so that resources are directly reserved after the RRC connection establishment RRCConnectionSetup message is sent, uplink opening authorization is sent to the UE, and the UE is informed of data transmission.
And in the RRC connection reconfiguration process, after receiving an RRCConnectionReconfiguration complete message of successful RRC connection reconfiguration, the eNB side considers that the access layer configuration of the attachment flow is completed, and then carries out scheduling according to the actual service bandwidth requirement.
Fig. 3 is a schematic diagram illustrating an overall framework of a user terminal access delay optimization base station in the internet of things according to an embodiment of the present invention. Generally, the system comprises a confirmation module A1, a first scheduling module A2, an establish connection module A3, and a second scheduling module A4:
the confirmation module a1, connected to the first scheduling module a2, is configured to receive a connection establishment request message sent by a user terminal, and accept and control the user terminal, and confirm that the user terminal has broadband transmission capability;
the first scheduling module a2, connected to the confirmation module a1 and the connection establishing module A3 respectively, is configured to perform broadband scheduling based on the user terminal bandwidth capability and the base station side bandwidth resource;
the connection establishing module A3 is connected to the first scheduling module a2 and the second scheduling module a4, respectively, and is configured to send a connection establishing message to the user terminal, reserve resources, and start uplink authorization;
the second scheduling module a4 is connected to the connection establishing module A3, and is configured to schedule a corresponding bandwidth according to an actual service requirement to perform service data transmission.
In another specific embodiment of the present invention, a base station for optimizing user terminal access delay in the internet of things further includes a receiving unit and a control unit:
the receiving unit is connected with the control unit and used for receiving an RRC connection establishment request message sent by the user terminal, acquiring the maximum bandwidth capacity of uplink and downlink transmission of the user terminal and carrying out admission control;
the control unit is connected with the receiving unit and used for detecting the maximum bandwidth capacity of uplink and downlink transmission of the user terminal and confirming that the user terminal has broadband transmission capacity based on the maximum bandwidth capacity.
In another specific embodiment of the present invention, in an internet of things, a user terminal access delay optimization base station, the connection establishing module is further configured to: and after the RRC connection setup message is sent, reserving resources, sending uplink opening authorization to the user terminal, and informing the user terminal of data transmission.
In another specific embodiment of the present invention, in an internet of things, the second scheduling module is further configured to: and in the RRC Connection Reconfiguration process, after receiving an RRC Connection Reconfiguration Complete message that the RRC Connection Reconfiguration is successful, scheduling according to the actual service bandwidth requirement.
Fig. 4 is a schematic diagram illustrating an overall framework of a system for optimizing access delay of a ue in the internet of things according to an embodiment of the present invention. In general, the method comprises the following steps:
base station a0 and user terminal a 5:
the base station A0 is connected to the user terminal A5, and comprises a confirmation module A1, a first scheduling module A2, a connection establishing module A3 and a second scheduling module A4;
the confirmation module a1, connected to the first scheduling module a2, is configured to receive a connection establishment request message sent by a user terminal, and accept and control the user terminal, and confirm that the user terminal has broadband transmission capability;
the first scheduling module a2, connected to the confirmation module a1 and the connection establishing module A3 respectively, is configured to perform broadband scheduling based on the user terminal bandwidth capability and the base station side bandwidth resource;
the connection establishing module A3 is connected to the first scheduling module a2 and the second scheduling module a4, respectively, and is configured to send a connection establishing message to the user terminal, reserve resources, and start uplink authorization;
the second scheduling module a4 is connected to the connection establishing module A3, and is configured to schedule a corresponding bandwidth according to an actual service requirement to perform service data transmission.
According to the technical scheme, in the terminal access process, the base station judges the terminal capability according to the terminal capability information carried in the air interface message, if the terminal supporting broadband transmission carries out broadband scheduling in the attachment process, the signaling transmission delay in the air interface attachment process is reduced, and the terminal is ensured to be rapidly accessed into the system; if the terminal is a narrow-band terminal, the access is still performed in a narrow-band mode.
The invention can simultaneously support the access of the broadband terminal and the narrowband terminal and effectively shorten the access time delay of the broadband transmission terminal.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A method for optimizing user terminal access delay in the Internet of things is characterized by comprising the following steps:
receiving a connection establishment request message sent by a user terminal, receiving and controlling the user terminal, and confirming that the user terminal has broadband transmission capability;
carrying out broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources of the base station side;
sending a connection establishing message to a user terminal, reserving resources and starting uplink authorization;
scheduling corresponding bandwidth to transmit service data according to actual service requirements;
the steps of receiving a connection establishment request message sent by a user terminal and admission controlling the user terminal further comprise:
and receiving an RRC connection establishment request message sent by the user terminal, acquiring the maximum bandwidth capacity of uplink and downlink transmission of the user terminal, and performing admission control.
2. The method of claim 1, wherein the step of confirming that the user terminal has broadband transmission capability further comprises: the maximum bandwidth capacity of uplink and downlink transmission of the user terminal is detected, and the user terminal is confirmed to have broadband transmission capacity based on the maximum bandwidth capacity.
3. The method of claim 1, wherein the step of sending a connection establishment message to the ue, reserving resources and performing uplink grant on further comprises:
and after the RRC Connection Setup message is sent, reserving resources, sending uplink opening authorization to the user terminal, and informing the user terminal of data transmission.
4. The method of claim 1, wherein the step of scheduling the corresponding bandwidth for the transmission of the service data according to the actual service requirement further comprises:
and in the RRC Connection Reconfiguration process, after receiving an RRC Connection Reconfiguration Complete message that the RRC Connection Reconfiguration is successful, scheduling according to the actual service bandwidth requirement.
5. A user terminal access delay optimization base station in the Internet of things is characterized by comprising a confirmation module, a first scheduling module, a connection establishing module and a second scheduling module:
the confirmation module is connected with the first scheduling module and used for receiving a connection establishment request message sent by a user terminal, receiving and controlling the user terminal and confirming that the user terminal has broadband transmission capability;
the first scheduling module is respectively connected with the confirmation module and the connection establishment module and is used for carrying out broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources at the base station side;
the connection establishing module is respectively connected with the first scheduling module and the second scheduling module and used for sending a connection establishing message to the user terminal, reserving resources and starting uplink authorization;
the second scheduling module is connected with the connection establishing module and used for scheduling corresponding bandwidth to transmit service data according to actual service requirements;
the confirming module also comprises a receiving unit, wherein the receiving unit is used for receiving the RRC connection establishment request message sent by the user terminal, acquiring the maximum bandwidth capacity of uplink and downlink transmission of the user terminal and carrying out admission control.
6. The base station of claim 5, wherein the confirmation module further comprises a control unit:
the control unit is connected with the receiving unit and used for detecting the maximum bandwidth capacity of uplink and downlink transmission of the user terminal and confirming that the user terminal has broadband transmission capacity based on the maximum bandwidth capacity.
7. The base station of claim 5, wherein the connection establishment module is further to: and after the RRC Connection Setup message is sent, reserving resources, sending uplink opening authorization to the user terminal, and informing the user terminal of data transmission.
8. The base station of claim 5, wherein the second scheduling module is further configured to: and in the RRC Connection Reconfiguration process, after receiving an RRC Connection Reconfiguration Complete message that the RRC Connection Reconfiguration is successful, scheduling according to the actual service bandwidth requirement.
9. A user terminal access delay optimization system in the Internet of things is characterized by comprising a base station and a user terminal:
the base station is connected with the user terminal and comprises a confirmation module, a first scheduling module, a connection establishing module and a second scheduling module;
the confirmation module is connected with the first scheduling module and used for receiving a connection establishment request message sent by a user terminal, receiving and controlling the user terminal and confirming that the user terminal has broadband transmission capability;
the first scheduling module is respectively connected with the confirmation module and the connection establishment module and is used for carrying out broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources at the base station side;
the connection establishing module is respectively connected with the first scheduling module and the second scheduling module and used for sending a connection establishing message to the user terminal, reserving resources and starting uplink authorization;
the second scheduling module is connected with the connection establishing module and used for scheduling corresponding bandwidth to transmit service data according to actual service requirements;
the confirming module also comprises a receiving unit, wherein the receiving unit is used for receiving the RRC connection establishment request message sent by the user terminal, acquiring the maximum bandwidth capacity of uplink and downlink transmission of the user terminal and carrying out admission control.
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CN102740485A (en) * 2011-04-02 2012-10-17 中兴通讯股份有限公司 Method, user equipment, and base station of resource scheduling

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