CN108696906A - User terminal access delay optimization method, base station and system in a kind of Internet of Things - Google Patents

Abstract

The present invention provides a user terminal access delay optimization method, base station and system in the Internet of Things. The method confirms that the user terminal is equipped with broadband transmission by receiving a connection establishment request message sent by the user terminal and accepting and controlling the user terminal. Capability; perform broadband scheduling based on the bandwidth capability of the user terminal and the bandwidth resources of the base station; send a connection establishment message to the user terminal, reserve resources and enable uplink authorization; schedule corresponding bandwidth according to actual service requirements for service data transmission. The present invention performs broadband scheduling for terminals supporting broadband transmission during the attaching process, reduces signaling transmission time delay in the air interface attaching process, and ensures quick access of the user terminal to the system.

Description

Method, base station and system for optimizing user terminal access delay in Internet of Things

technical field

The present invention relates to the field of communication technology, and more specifically, to a method for optimizing user terminal access delay in the Internet of Things, a base station and a system.

Background technique

At present, with the rapid development of wireless communication technology, more and more industries also use wireless communication systems for service transmission, and then the Internet of Things field also uses TD-LTE technology for service transmission.

In the prior art, it is considered that there may be a narrowband service with a small amount of transmitted data in the Internet of Things, and there may also be a broadband service with a large amount of transmitted data. Due to the small amount of data transmitted by the Internet of Things, the allocation of resources will be less, and considering the situation of wider coverage, a narrower bandwidth is often allocated for transmission when accessing.

However, due to the small amount of data transmitted by the traditional Internet of Things, the allocation of communication resources will be relatively small, and it is necessary to take into account the situation of wider coverage, and a narrower bandwidth is often allocated for transmission when accessing. In the case of less transmission resources, the length of the wireless frame will be lengthened in the time domain, so when the terminal performs access, the access delay will increase. The Internet of Things system may also have broadband service transmission. For terminals that transmit broadband services, if the narrowband access method is still used, the access delay of broadband terminals will inevitably be affected.

Contents of the invention

In order to overcome the above problems or at least partly solve the above problems, the present invention provides an access delay optimization method based on TD-LTE Internet of Things, which performs broadband scheduling for terminals supporting broadband transmission during the attachment process, reducing the air interface attachment process The signaling transmission delay ensures fast terminal access to the system.

According to one aspect of the present invention, a method for optimizing user terminal access delay in the Internet of Things is provided, which is characterized in that it includes:

receiving the connection establishment request message sent by the user terminal, accepting and controlling the user terminal, and confirming that the user terminal has broadband transmission capability;

performing broadband scheduling based on the user terminal bandwidth capability and base station side bandwidth resources;

Send a connection establishment message to the user terminal, reserve resources and enable uplink authorization;

According to the actual business needs, the corresponding bandwidth is scheduled for the transmission of business data.

According to another aspect of the present invention, a user terminal access delay optimization base station in the Internet of Things is provided, which is characterized in that it includes a confirmation module, a first scheduling module, a connection establishment module and a second scheduling module:

The confirmation module is connected to the first scheduling module, and is used to receive the connection establishment request message sent by the user terminal, accept and control the user terminal, and confirm that the user terminal has broadband transmission capability;

The first scheduling module is connected to the confirmation module and the connection establishment module respectively, and is used to perform broadband scheduling based on the user terminal bandwidth capability and the base station side bandwidth resources;

The connection establishment module is connected to the first scheduling module and the second scheduling module respectively, and is used to send a connection establishment message to the user terminal, reserve resources and enable uplink authorization;

The second scheduling module is connected to the connection establishment module, and is used to schedule corresponding bandwidths to transmit service data according to actual service requirements.

According to another aspect of the present invention, there is provided a user terminal access delay optimization system in the Internet of Things, which is characterized in that it includes a base station and a user terminal:

The base station is connected to the user terminal, including a confirmation module, a first scheduling module, a connection establishment module, and a second scheduling module;

The confirmation module is connected to the first scheduling module, and is used to receive the connection establishment request message sent by the user terminal, accept and control the user terminal, and confirm that the user terminal has broadband transmission capability;

The first scheduling module is connected to the confirmation module and the connection establishment module respectively, and is used to perform broadband scheduling based on the user terminal bandwidth capability and the base station side bandwidth resource;

The connection establishment module is connected to the first scheduling module and the second scheduling module respectively, and is used to send a connection establishment message to the user terminal, reserve resources and enable uplink authorization;

The second scheduling module is connected to the connection establishment module, and is used to schedule corresponding bandwidths to transmit service data according to actual service requirements.

This application proposes a user terminal access delay optimization method, base station and system in the Internet of Things. The present invention performs broadband scheduling for terminals that support broadband transmission during the attachment process, reduces the signaling transmission delay during the air interface attachment process, and ensures that users The terminal quickly accesses the system.

Description of drawings

1 is a schematic diagram of an overall flow of a method for optimizing user terminal access delay in the Internet of Things according to an embodiment of the present invention;

2 is a schematic flowchart of a method for optimizing user terminal access delay in the Internet of Things according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an overall structure of a user terminal access delay optimization base station 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 user terminal access delay in the Internet of Things according to an embodiment of the present invention.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

The present invention provides an access delay optimization method based on the TD-LTE Internet of Things, which performs broadband scheduling for terminals supporting broadband transmission during the attachment process, reduces the signaling transmission delay during the air interface attachment process, and ensures that the terminal quickly accesses the system .

TD-LTE, also known as LTE-TDD, or Time Division Long Term Evolution (Time Division Long Term Evolution), was jointly formulated by major companies and operators around the world covered by the 3GPP organization. The two modes of FDD and TDD in the LTE standard are essentially are the same, there are only minor differences between the two patterns, with a similarity of 90%. TDD Time Division Duplexing (TimeDivisionDuplexing), is one of the duplexing technologies used in mobile communication technology, corresponding to FDD frequency division duplexing. TD-LTE is the technology of the TDD version of LTE, and the technology of FDD-LTE is the technology of the 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 codec, frame format, air interface, signaling, to network architecture.

FIG. 1 shows a schematic diagram of the overall flow of a method for optimizing user terminal access delay in the Internet of Things in a specific embodiment of the present invention. In general, include:

S1, receiving a connection establishment request message sent by a user terminal, accepting and controlling the user terminal, and confirming that the user terminal has broadband transmission capability;

S2, performing broadband scheduling based on the user terminal bandwidth capability and the base station side bandwidth resources;

S3, sending a connection establishment message to the user terminal, reserving resources and enabling uplink authorization;

S4. Scheduling the corresponding bandwidth according to the actual business requirement to transmit the business data.

In another specific embodiment of the present invention, a method for optimizing user terminal access delay in the Internet of Things, the step of receiving a connection establishment request message sent by the user terminal and accepting and controlling the user terminal further includes:

Receive the RRC connection establishment request message sent by the user terminal, obtain the maximum bandwidth capability of the user terminal for uplink and downlink transmission, and perform admission control.

In another specific embodiment of the present invention, a method for optimizing user terminal access delay in the Internet of Things, where the user terminal has broadband transmission capability further includes: detecting the maximum bandwidth capability of the user terminal for uplink and downlink transmission, and based on the maximum bandwidth The capability confirms that the user terminal has a broadband transmission capability.

In another specific embodiment of the present invention, a method for optimizing user terminal access delay in the Internet of Things, the steps of sending a connection establishment message to the user terminal, reserving resources and enabling uplink authorization further include:

After the RRC Connection Setup message is sent, resources are reserved, and an uplink start authorization is sent to the user terminal to notify the user terminal to perform data transmission.

In another specific embodiment of the present invention, a user terminal access delay optimization method in the Internet of Things, the step of scheduling the corresponding bandwidth according to actual business needs to transmit business data also includes:

During the RRC connection reconfiguration process, after receiving the RRCConnectionReconfiguration Complete message, the RRC connection reconfiguration is successful, and scheduling is performed according to the actual service bandwidth requirements.

As shown in FIG. 2 , another specific embodiment of the present invention shows a flow chart of a method for optimizing user terminal access delay in the Internet of Things. Include the following steps:

From the RRC connection establishment request message sent by the UE, the eNB obtains the maximum bandwidth capability of the UE for uplink and downlink transmission, and performs admission control.

When the eNB accepts the UE, when scheduling the RRC connection establishment completion message of the terminal, it detects the maximum bandwidth capability of the UE for uplink and downlink transmission. Broadband scheduling reduces air interface signaling transmission delay.

After sending the RRCConnectionSetup message, the eNB believes that the UE side can quickly process and generate the RRCConnectionSetupComplete message and send it to the eNB side. Therefore, after sending the RRCConnectionSetup message, directly reserve resources and send it to the UE The uplink enable authorization notifies the UE that data transmission is possible.

During the RRC connection reconfiguration process, the eNB side considers that the access layer configuration of the attach process is completed after receiving the RRCConnectionReconfigurationComplete message that the RRC connection reconfiguration succeeds, and subsequently schedules according to the actual service bandwidth requirements.

FIG. 3 shows a schematic diagram of an overall framework of a user terminal access delay optimization base station in the Internet of Things in a specific embodiment of the present invention. Generally, it includes: confirmation module A1, first scheduling module A2, connection establishment module A3 and second scheduling module A4:

The confirmation module A1 is connected to the first scheduling module A2, and is used for receiving a connection establishment request message sent by a user terminal and accepting and controlling the user terminal, and confirming that the user terminal has broadband transmission capability;

The first scheduling module A2 is connected to the confirmation module A1 and the connection establishment module A3 respectively, and is used to perform broadband scheduling based on the user terminal bandwidth capability and the base station side bandwidth resources;

The connection establishment module A3 is connected to the first scheduling module A2 and the second scheduling module A4 respectively, and is used to send a connection establishment message to the user terminal, reserve resources and enable uplink authorization;

The second scheduling module A4 is connected to the connection establishment module A3, and is used for scheduling corresponding bandwidths to transmit service data according to actual service requirements.

In another specific embodiment of the present invention, a user terminal access delay optimization base station in the Internet of Things, the confirmation module further includes a receiving unit and a control unit:

The receiving unit is connected to the control unit, and is used to receive the RRC connection establishment request message sent by the user terminal, obtain the maximum bandwidth capability of the user terminal for uplink and downlink transmission, and perform admission control;

The control unit is connected to the receiving unit, and is used for detecting the maximum bandwidth capability of the user terminal for uplink and downlink transmission, and confirming that the user terminal has broadband transmission capability based on the maximum bandwidth capability.

In another specific embodiment of the present invention, a user terminal access delay optimization base station in the Internet of Things, the connection establishment module is also used to: after sending the RRC connection establishment RRC ConnectionSetup message, reserve resources, and send to the user terminal Uplink authorization is enabled, and the user terminal is notified to perform data transmission.

In another specific embodiment of the present invention, a user terminal access delay optimization base station in the Internet of Things, the second scheduling module is also used to: during the RRC connection reconfiguration process, receive the RRC ConnectionReconfiguration successful RRC ConnectionReconfiguration After the Complete message, schedule according to the actual service bandwidth requirements.

FIG. 4 shows a schematic diagram of an overall framework of a user terminal access delay optimization system in the Internet of Things in a specific embodiment of the present invention. In general, include:

Base station A0 and user terminal A5:

The base station A0 is connected to the user terminal A5, including a confirmation module A1, a first scheduling module A2, a connection establishment module A3 and a second scheduling module A4;

The confirmation module A1 is connected to the first scheduling module A2, and is used for receiving a connection establishment request message sent by a user terminal and accepting and controlling the user terminal, and confirming that the user terminal has broadband transmission capability;

The first scheduling module A2 is connected to the confirmation module A1 and the connection establishment module A3 respectively, and is used to perform broadband scheduling based on the user terminal bandwidth capability and the base station side bandwidth resource;

The connection establishment module A3 is connected to the first scheduling module A2 and the second scheduling module A4 respectively, and is used to send a connection establishment message to the user terminal, reserve resources and enable uplink authorization;

The second scheduling module A4 is connected to the connection establishment module A3, and is used for scheduling corresponding bandwidths to transmit service data according to actual service requirements.

According to the technical solution of the present invention, during the terminal access process, the base station judges the terminal capability according to the terminal capability information carried in the air interface message. Make the transmission delay to ensure that the terminal can quickly access the system; if the terminal is a narrowband terminal, the narrowband mode is still used for access.

The invention can simultaneously support the access of broadband terminals and narrowband terminals, and effectively shorten the access delay of broadband transmission terminals.

Finally, the method of the present application is only a preferred embodiment, and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. user terminal access delay optimization method in a kind of Internet of Things, which is characterized in that including:

It receives the connection that user terminal is sent and establishes user terminal described in request message and admission control, confirm the user terminal Has broadband transmittability;

Broadband scheduling is carried out based on the user terminal bandwidth ability and base station side bandwidth resources;

Connection message is established to user terminal transmission, reserved resource simultaneously carries out uplink authorization unlatching;

The transmission of business datum is carried out according to practical business demand dispatch respective bandwidth.

2. the method as described in claim 1, which is characterized in that the step receives the connection that user terminal is sent and establishes request User terminal further includes described in message and admission control:

It receives the RRC connections that user terminal is sent and establishes request message, obtain the maximum bandwidth energy of user terminal downstream transmission Power, and carry out admission control.

3. the method as described in claim 1, which is characterized in that the step confirms that the user terminal has broadband transmission energy Power further includes:The maximum bandwidth capability for detecting user terminal downstream transmission confirms the use based on the maximum bandwidth capability Family terminal has broadband transmittability.

4. the method as described in claim 1, which is characterized in that the step establishes connection message to user terminal transmission, in advance It stays resource and carries out uplink authorization unlatching and further include:

After RRC Connection Setup message is established in transmission RRC connections, resource is reserved, and send uplink to user terminal and open Mandate is opened, notice user terminal carries out data transmission.

5. the method as described in claim 1, which is characterized in that the step according to practical business demand dispatch respective bandwidth into The transmission of row business datum further includes:

During RRC connection reconfigurations are set, receives RRC connection reconfigurations and be set to work(RRC Connection Reconfiguration After Complete message, it is scheduled according to practical business bandwidth demand.

6. user terminal access delay optimizes base station in a kind of Internet of Things, which is characterized in that including confirmation module, the first scheduling mould Block establishes link block and the second scheduler module:

The confirmation module is connected with first scheduler module, and the connection for receiving user terminal transmission establishes request and disappears User terminal described in simultaneously admission control is ceased, confirms that the user terminal has broadband transmittability;

First scheduler module, is connected respectively at the confirmation module with connection establishment module, for whole based on the user Bandwidth ability and base station side bandwidth resources is held to carry out broadband scheduling;

The connection establishment module is connected respectively at first scheduler module with the second scheduler module, is used for user terminal Connection message is established in transmission, and reserved resource simultaneously carries out uplink authorization unlatching;

Second scheduler module, is connected with the connection establishment module, for according to practical business demand dispatch respective bandwidth Carry out the transmission of business datum.

7. base station as claimed in claim 6, which is characterized in that the confirmation module further includes receiving unit and control unit:

The receiving unit is connected with described control unit, and the RRC connections for receiving user terminal transmission establish request and disappear Breath, obtains the maximum bandwidth capability of user terminal downstream transmission, and carries out admission control;

Described control unit is connected with the receiving unit, the maximum bandwidth energy for detecting user terminal downstream transmission Power confirms that the user terminal has broadband transmittability based on the maximum bandwidth capability.

8. base station as claimed in claim 6, which is characterized in that the connection establishment module is additionally operable to:RRC connections are sent to establish After RRC Connection Setup message, resource is reserved, and send uplink to user terminal and open mandate, notify user terminal Carry out data transmission.

9. base station as claimed in claim 6, which is characterized in that second scheduler module is additionally operable to:It is set in RRC connection reconfigurations In the process, it receives after RRC connection reconfigurations are set to work(RRC Connection Reconfiguration Complete message, root Factually service bandwidth demand in border is scheduled.

10. user terminal access delay optimization system in a kind of Internet of Things, which is characterized in that including base station and user terminal:

The base station is connected with the user terminal, including confirmation module, the first scheduler module, establish link block and second adjust Spend module;

The confirmation module is connected with first scheduler module, and the connection for receiving user terminal transmission establishes request and disappears User terminal described in simultaneously admission control is ceased, confirms that the user terminal has broadband transmittability;

First scheduler module, is connected respectively at the confirmation module with connection establishment module, for whole based on the user Bandwidth ability and base station side bandwidth resources is held to carry out broadband scheduling;

The connection establishment module is connected respectively at first scheduler module with the second scheduler module, is used for user terminal Connection message is established in transmission, and reserved resource simultaneously carries out uplink authorization unlatching;

Second scheduler module, is connected with the connection establishment module, for according to practical business demand dispatch respective bandwidth Carry out the transmission of business datum.