CN106954280A

CN106954280A - A kind of data transmission method, apparatus and system

Info

Publication number: CN106954280A
Application number: CN201610835485.5A
Authority: CN
Inventors: 余媛芳; 杜忠达; 沙秀斌; 戴谦; 陆婷
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-01-07
Filing date: 2016-09-20
Publication date: 2017-07-14
Anticipated expiration: 2036-09-20
Also published as: CN106954280B; WO2017118012A1

Abstract

Disclosed herein is a kind of data transmission method, apparatus and system, this method includes：Terminal sends wireless connection and re-establishes request message to network side apparatus；Terminal re-establishes message according to the wireless connection received from network side apparatus, sends wireless connection and re-establishes completion message to network side apparatus；Wherein, the wireless connection re-establishes that completion message, the wireless connection re-establish request message and the wireless connection re-establishes message and meets at least one of：The wireless connection, which is re-established, carries upstream data in completion message；The wireless connection, which is re-established, carried in request message the first security information；The wireless connection, which is re-established, carries the second security information and/or the invalid configured information of the second security information in message.Data transmission method disclosed herein, apparatus and system, can realize re-establish quick resume data transmission by wireless connection.

Description

A kind of data transmission method, apparatus and system

Technical field

The present invention relates to the communications field, more particularly to a kind of data transmission method, apparatus and system.

Background technology

Machinery compartment (M2M, Machine to Machine) communication is that the 5th third-generation mobile communication technology (5G) is studied at present One important topic, is also an important applied field of future wireless system.It is low for low cost in M2M communication problem The characteristic of handling capacity type terminals, it is proposed that arrowband Internet of Things (NB-IoT, Narrow Band-Internet of Things) The sub- problem of research：The channel radio for providing poor throughput namely in 200khz frequency band for NB-IoT low cost terminals is convinced Business.

When NB-IoT systems mainly consider to support ultralow bandwidth, small data packets, depth covering, time delay tolerance, super long standby time Between scene；It is currently based on Long Term Evolution (LTE, Long Term Evolution) technology to build NB-IoT systems, and is directed to NB-IoT scene and business characteristic is optimized to existing LTE technical systems.Although NB-IoT systems can generally inherit LTE Framework, but either air protocol stack and core net can all have different degrees of change：For example, because the type of service supported Relatively simple, air protocol stack can do significantly simple on medium access control (MAC, Media Access Control) layer Change；In order to meet the demand of depth covering, data transfer needs to consider more reliable mechanism, such as more to repeat to send guarantor Card reception etc.；In order to meet the demand (more than 10 years) of super long standby time time, the processing procedure of wireless connection (set up, even by connection Connect again with etc.) be simplified.

The schematic flow sheet that Fig. 1 re-establishes for existing LTE wireless connection.As shown in figure 1, step 101：Terminal sends nothing Line connection re-establishment request message is to base station；Step 102：Base station sends wireless connection and re-establishes message to terminal；Step 103： Terminal sends wireless connection and re-establishes completion message to base station.In LTE, wireless connection re-establishes operation and be used to recover wireless Signaling bear 1 (SRB1, Signaling Radio Bearer 1), security reactivation and the configuration to main plot, wherein, Above-mentioned particular content can refer to third generation partner program (3GPP, Third Generation Partnership Project) TS36.331 agreements.The space interface signaling of Radio Link (is re-established for example, wireless connection sets up completion, wireless connection Complete etc.) can be transmitted by SRB1.

In the small data transmission wireless communication system using NB-IoT systems as representative (for example, the system of these system requirements Bandwidth may be different, and some bandwidth only have 200k, and some may can reach 1.4M etc., but with similar business demand) in, While it is desirable to simplify the signaling procedure of wireless connection, but the process that re-establishes of wireless connection is considered as beneficial, and The scene that triggering wireless connection is re-established is still presence in the small data transmission wireless communication system using NB-IoT as representative.

Fig. 2 re-establishes the schematic flow sheet of operation recovery data transfer for the existing LTE of reuse wireless connection.Such as Fig. 2 institutes Show, step 201~step 203 is with step 101~step 103, step 204：Terminal sends the uplink information transmission for carrying data Message realizes data transfer to base station.However, it is contemplated that the power saving demand of NB-IoT terminals (typically requires that terminal is supported 10 years More than stand-by time), terminal send message when power consumption much larger than receive and it is standby when, therefore, uplink information transmission message Transmission can increase power consumption of terminal, to a certain extent reduce terminal stand-by time.Moreover, being re-established by wireless connection While operation recovery data transfer, in addition it is also necessary to consider the fairness that resource is used, to reach the optimal of whole network performance.

In existing processing, need to carry out after activation Access Layer safety because wireless connection re-establishes operation, But for chain of command data transmission scheme (3GPP TS36.331 are specifically referred to, by chain of command carrying transmission data, are not built Vertical data surface carrying, for example, eat dishes without rice or wine only to set up wireless signaling carrying SRB and do not set up wireless data carrying DRB), only support using non- Access Layer safety operation, does not support to use Access Layer safety operation, therefore in 3GPP R13 versions, for using chain of command number According to the Internet of things system of transmission plan, it is impossible to support that wireless connection re-establishes operation.However, it is contemplated that the mobility of terminal Scape, can cause partial data to lose using the terminal of the chain of command data transmission scheme of 3GPP R13 versions when being moved to adjacent area The longer time resume data transmission with needs, causes power consumption of terminal to rise and Consumer's Experience decline.Accordingly, it would be desirable to consider excellent Change the radio bearer using chain of command data transmission scheme and the recovery process of data transfer.

The content of the invention

The embodiment of the present invention provides a kind of data transmission method, apparatus and system, can realize and be rebuild by wireless connection Found quick resume data transmission.

The embodiment of the present invention provides a kind of data transmission method, including：Terminal sends wireless connection and re-establishes request message To network side apparatus；Terminal re-establishes message according to the wireless connection received from network side apparatus, sends wireless connection and re-establishes Completion message is to network side apparatus；

Wherein, the wireless connection re-establishes completion message, the wireless connection and re-establishes request message and the nothing Line connection re-establishment message meets at least one of：

The wireless connection, which is re-established, carries upstream data in completion message；

The wireless connection, which is re-established, carried in request message the first security information；

The wireless connection, which is re-established, carries the second security information and/or the invalid instruction letter of the second security information in message Breath.

Alternatively, first security information is short message integrity verification code；Second security information is next-hop Link count value.

Alternatively, methods described also includes：If the terminal have activated Access Layer safety, the terminal connects according to correlation Enter layer security mechanism and first security information is set；If the terminal does not activate Access Layer safety, the terminal is set First security information is preset value.

Alternatively, methods described also includes：If the terminal have activated Access Layer safety, the terminal uses described the Two security information carry out associated safety operation；Under the conditions of at least one of, the terminal disregards are believed with the described second safety The operation that manner of breathing is closed：

The terminal does not activate Access Layer safety；Second security information is set to preset value；The terminal is received The invalid configured information of second security information.

Alternatively, before terminal transmission wireless connection re-establishes request message to network side apparatus, methods described Also include：

The terminal notifies that network side apparatus supports wireless connection weight by the configured information included in one of following message Set up function or support Access Layer security function：

Wireless connection sets up request message, wireless connection and sets up completion message, terminal capability transmission message, uplink information biography Defeated message, Non-Access Stratum Attach Request message.

Alternatively, the terminal uses chain of command data transmission scheme.

Alternatively, the wireless connection re-establishes request message and carries small data transmission configured information and/or trigger this The reason for wireless connection re-establishes request.

Alternatively, the reason includes：Radio Link Failure, reaches RLC maximum retransmissions.

Alternatively, the wireless connection re-establishes message and carries SRB1 configuration parameters.

The embodiment of the present invention also provides a kind of data transmission method, including：It is wireless that network side apparatus receiving terminal is sent Connection re-establishment request message；Network side apparatus sends wireless connection and re-establishes message to the terminal；Network side apparatus is received The wireless connection that the terminal re-establishes message transmission according to the wireless connection re-establishes completion message；

Alternatively, methods described also includes：If have activated Access Layer safety between the network side apparatus and the terminal, Then the network side apparatus carries out associative operation using first security information；If the network side apparatus and the terminal it Between without activation Access Layer safety, then the network side apparatus ignores the operation related to first security information.

Alternatively, methods described also includes：If have activated Access Layer safety between the network side apparatus and the terminal, Then the network side apparatus sets second security information；If there is no activation to connect between the network side apparatus and the terminal Enter layer safety, then the network side apparatus set second security information for preset value and/or set the second security information without The configured information of effect.

Alternatively, chain of command data transmission scheme is used between the network side apparatus and the terminal.

Alternatively, before network side apparatus reception wireless connection re-establishes request message, methods described also includes： The network side apparatus knows that the terminal supports that wireless connection is re-established by the configured information included in one of following message Function supports Access Layer security function：

Alternatively, the wireless connection that the network side apparatus receiving terminal is sent is re-established after request message, the net Before network side device transmission wireless connection re-establishes message to the terminal, methods described also includes at least one following step：

When the wireless connection, which re-establishes request message, carries small data transmission configured information, the network side apparatus root The small data transmission configured information of request message carrying is re-established according to the wireless connection for terminal configuration logic channel to match somebody with somebody Put parameter；

When the wireless connection, which re-establishes request message, does not carry small data transmission configured information, the network side dress It is that the terminal configures logic channel configuration parameter to put according to self-condition；

When the wireless connection, which re-establishes request message carrying, triggers the reason for this wireless connection re-establishes request, institute State triggering this wireless connection that network side apparatus re-establishes request message carrying according to the wireless connection and re-establish request Reason is that the terminal configures RLC configuration parameters；

When the wireless connection re-establish request message do not carry triggering this wireless connection re-establish request the reason for When, the small data transmission that the network side apparatus re-establishes request message carrying according to self-condition or according to wireless connection refers to Show that information configures RLC configuration parameters for terminal.

Alternatively, the above method also includes：The wireless connection for receiving terminal transmission in the network side apparatus sets up request During message, the wireless connection that the network side apparatus sends carrying SRB1 configuration parameters sets up message to the terminal.

Alternatively, the SRB1 configuration parameters include：First SRB1 SRB1 configuration parameters and/or the 2nd SRB1 SRB1 Configuration parameter, the first SRB1 is used to transmit signaling, and the 2nd SRB1 is used to transmit data.

Alternatively, the SRB1 configuration parameters include at least one of following：SRB1 marks, logic channel configuration parameter, RLC Configuration parameter.

Alternatively, the logic channel configuration parameter includes at least one of following：When prioritized bit rates, token bucket size Between.

Alternatively, the RLC configuration parameters include the RLC maximum retransmissions that value is more than 32.

The embodiment of the present invention also provides a kind of data transmission device, applied to terminal, including：First sending module, is used for Send wireless connection and re-establish request message to network side apparatus；Second sending module, for according to from the network side apparatus The wireless connection of reception re-establishes message, sends wireless connection and re-establishes completion message to the network side apparatus；

Alternatively, described device also includes：First setup module, if having activated Access Layer safety for the terminal, is pressed Photograph closes Access Layer security mechanism and sets first security information；If the terminal does not activate Access Layer safety, institute is set The first security information is stated for preset value.

Alternatively, described device also includes：First processing module, if having activated Access Layer safety for the terminal, makes Associated safety operation is carried out with second security information；Under the conditions of at least one of, ignore and believe with the described second safety The operation that manner of breathing is closed：

Alternatively, described device also includes：Notification module, please for being re-established in the first sending module transmission wireless connection Before message is sought to network side apparatus, notify that network side apparatus is supported by the configured information included in one of following message wireless Connection re-establishment function supports Access Layer security function：

The embodiment of the present invention also provides a kind of data transmission device, applied to network side apparatus, including：First receives mould Block, the wireless connection sent for receiving terminal re-establishes request message；3rd sending module, rebuilds for sending wireless connection Vertical message gives the terminal；Second receiver module, for receive the terminal according to the wireless connection re-establish message send Wireless connection re-establish completion message；

Alternatively, described device also includes：Second processing module, if between the network side apparatus and the terminal Access Layer safety is have activated, associative operation is carried out using first security information；If the network side apparatus and the terminal Between without activation Access Layer safety, ignore the operation related to first security information.

Alternatively, described device also includes：Second setup module, if between the network side apparatus and the terminal Access Layer safety is have activated, second security information is set；If not activated between the network side apparatus and the terminal Access Layer safety, sets second security information for preset value and/or sets the invalid configured information of the second security information.

Alternatively, described device also includes：Know module, please for being re-established in the first receiver module reception wireless connection Ask before message, know that the terminal supports that wireless connection re-establishes function by the configured information included in one of following message Or support Access Layer security function：

The embodiment of the present invention also provides a kind of data transmission method, including：Terminal transmission wireless connection re-establishes request and disappeared Cease to network side apparatus；The network side apparatus re-establishes request message according to the wireless connection, sends wireless connection and rebuilds Vertical message gives the terminal；The terminal re-establishes message according to the wireless connection, and transmission wireless connection re-establishes completion and disappeared Cease to the network side apparatus；

The embodiment of the present invention also provides a kind of data transmission system, including：Terminal and network side apparatus；The terminal, Request message is re-established to network side apparatus for sending wireless connection；The network side apparatus, for wirelessly being connected according to described Connect and re-establish request message, send wireless connection and re-establish message to the terminal；The terminal, is additionally operable to according to described wireless Connection re-establishment message, sends wireless connection and re-establishes completion message to the network side apparatus；

The embodiment of the present invention also provides a kind of computer-readable recording medium, and be stored with computer executable instructions, described The above-mentioned data transmission method of end side is realized when computer executable instructions are performed.

The embodiment of the present invention also provides a kind of computer-readable recording medium, and be stored with computer executable instructions, described The above-mentioned data transmission method of network side is realized when computer executable instructions are performed.

In embodiments of the present invention, terminal is realized by wireless connection weight when progress wireless connection re-establishes operation Set up quick resume data transmission.If upstream data to be sent, terminal can re-establish completion by wireless connection and disappear Breath carries upstream data and is sent to network side apparatus.

Moreover, network side apparatus is that terminal configures logic channel configuration parameter and RLC according to small data transmission configured information Configuration parameter.Thus, while operation recovery data transfer is re-established by wireless connection, it is ensured that the justice that resource is used Property, and then reach the optimal of whole network performance.

Brief description of the drawings

The schematic flow sheet that Fig. 1 re-establishes for existing LTE wireless connection；

Fig. 2 re-establishes the schematic flow sheet of operation recovery data transfer for the existing LTE of reuse wireless connection；

Fig. 3 is the flow chart of data transmission method provided in an embodiment of the present invention；

Fig. 4 is another flow chart of data transmission method provided in an embodiment of the present invention；

Fig. 5 is the flow chart for the data transmission method that the embodiment of the present invention one is provided；

Fig. 6 is the flow chart for the data transmission method that the embodiment of the present invention two is provided；

Fig. 7 is the schematic diagram of data transmission system provided in an embodiment of the present invention.

Embodiment

The embodiment of the present invention is described in detail below in conjunction with accompanying drawing, it will be appreciated that embodiments described below is only For instruction and explanation of the application, it is not used to limit the application.

Fig. 3 is the flow chart of data transmission method provided in an embodiment of the present invention.As shown in figure 3, what the present embodiment was provided Data transmission method, comprises the following steps：

Step 301：Terminal sends wireless connection and re-establishes request message to network side apparatus；

Step 302：Terminal re-establishes message according to the wireless connection received from network side apparatus, sends wireless connection and rebuilds Vertical completion message is to network side apparatus.

Alternatively, wireless connection, which is re-established, can carry upstream data in completion message.

Alternatively, wireless connection re-establishes that request message carries small data transmission configured information and/or to trigger this wireless The reason for connection re-establishment is asked.Alternatively, the reason includes：Radio Link Failure, reach wireless spread-spectrum technology (RLC, Radio Link Control) maximum retransmission.

Alternatively, the wireless connection re-establishes message and carries 1 (SRB1, Signaling Radio of wireless signaling carrying Bearer 1) configuration parameter.

For the terminal using chain of command data transmission scheme, the wireless connection, which is re-established, carries first in request message Security information, first security information is short message integrity verification code (shortMAC-I).Wherein, if the terminal swashs Access Layer of having lived is safe, then the terminal is pressed related Access Layer security mechanism setting first security information and (can specifically joined 3GPP TS36.331 are examined, for example, the service where terminal is using Access Layer safe key, Radio Link Failure occurs for terminal is small Area's mark, terminal C-RNTI etc. generate first security information)；If the terminal does not activate Access Layer safety, institute State terminal set first security information for preset value (for example, complete 1, full 0 or any about definite value, the preset value is with connecing Enter layer security algorithm uncorrelated).

For the terminal using chain of command data transmission scheme, the wireless connection, which is re-established, carried in message the second safety Information and/or the invalid configured information of the second security information, second security information are next hop link count value (NextHoppingCount).Wherein, if the terminal have activated Access Layer safety, the terminal uses the second safety letter Breath carries out associated safety operation (for example, for updating Access Layer security parameter, to be subsequently encrypted and integrity protection Deng)；If the terminal does not activate Access Layer safety, and/or, second security information is set to preset value (for example, complete 1, full 0 or any about definite value, the preset value are uncorrelated to Access Layer security algorithm), and/or, the terminal receives second The invalid configured information of security information, the terminal disregards operation related to the second security information.

Alternatively, for the terminal using chain of command data transmission scheme, send wireless connection in the terminal and re-establish Before request, methods described also includes：The terminal notification network side apparatus supports that wireless connection re-establishes function or support Access Layer security function, wherein, the terminal can notify that network side is filled by the configured information included in one of following message Put：Wireless connection, which sets up request message, wireless connection and sets up completion message, terminal capability and transmit message, uplink information and transmit, to disappear Cease, (message passes to core network device, MME (Mobility to Non-Access Stratum Attach Request message by non-access layer information Management Entity, mobile management nodes) base station apparatus can be passed to by S1 interface messages).

Fig. 4 is another flow chart of data transmission method provided in an embodiment of the present invention.As shown in figure 4, the present embodiment is carried The data transmission method of confession, comprises the following steps：

Step 401：The wireless connection that network side apparatus receiving terminal is sent re-establishes request message.

Wherein, wireless connection re-establishes and carried in request message the first security information, and first security information disappears to be short Cease integrity verification code (shortMAC-I).If the network side apparatus uses chain of command transmission side data with the terminal room Case and the terminal have activated Access Layer safety, then the network side apparatus carries out associative operation using first security information (for example, safety check of terminal)；If the network side apparatus and the terminal room using chain of command data transmission scheme and The terminal does not activate Access Layer safety, then the network side apparatus ignores the operation related to the first security information；Wherein, The network side apparatus at least includes one below：The wireless connection for receiving the terminal transmission re-establishes the first network of message Side device, the second network side apparatus being connected with the terminal before wireless connection re-establishes request message, described first Network side apparatus and second network side apparatus can be with identical or different；First network side device and second network Complete to re-establish that function is related (can to include but is not limited to the first peace to wireless connection by interface message interaction between the device of side Full information is related) operation.

Step 402：Network side apparatus sends wireless connection and re-establishes message to terminal.

Wherein, the wireless connection re-establishes message and carries the second security information and/or the invalid finger of the second security information Show information, second security information is next hop link count value (NextHoppingCount).If the network side dress Put and have activated Access Layer safety using chain of command data transmission scheme and the terminal with the terminal room, then the network side dress Install the second security information；If the network side apparatus uses chain of command data transmission scheme and described with the terminal room Terminal does not activate Access Layer safety, then the second security information of the network side apparatus setting is preset value (for example, complete 1, full 0 Or any about definite value, the preset value is uncorrelated to Access Layer security algorithm) and/or the invalid finger of the second security information is set Show information.

Step 403：The wireless connection that network side apparatus receiving terminal re-establishes message transmission according to wireless connection is re-established Completion message.

Alternatively, before network side apparatus reception wireless connection re-establishes request message, methods described also includes： The network side apparatus knows that the terminal supports that wireless connection is re-established by the configured information included in one of following message Function supports Access Layer security function：Wireless connection sets up request message, wireless connection and sets up completion message, terminal capability biography Pass message, uplink information transmission message, Non-Access Stratum Attach Request message.

Alternatively, the SRB1 configuration parameters include：First SRB1 SRB1 configuration parameters and/or the 2nd SRB1 SRB1 Configuration parameter；First SRB1 is used to transmit signaling, the signaling can include non-access carrying signaling (for example, attachment, Reattachment etc.), and/or, the signaling of access bearer is (for example, wireless connection sets up completion, wireless connection release, capability query Deng), the 2nd SRB1 is used to transmit data.

Wherein, the SRB1 marks can be used for recognizing the first SRB1 and the 2nd SRB1.

Specifically, when SRB1 configuration parameters include the first SRB1 SRB1 configuration parameters, the first SRB1 SRB1 matches somebody with somebody Parameter is put including at least one of following：First SRB1 SRB1 marks, the first SRB1 logic channel configuration parameter, the first SRB1 RLC configuration parameters；When SRB1 configuration parameters include the 2nd SRB1 SRB1 configuration parameters, the 2nd SRB1 SRB1 configuration ginsengs Number includes at least one of following：2nd SRB1 SRB1 marks, the 2nd SRB1 logic channel configuration parameter, the 2nd SRB1 RLC configuration parameters；Include the first SRB1 SRB1 configuration parameters and the 2nd SRB1 SRB1 configuration parameters when SRB1 configuration parameters When, there are two groups of SRB1 configuration parameters, wherein, the first SRB1 SRB1 configuration parameters are including at least one of following：First SRB1 SRB1 marks, the first SRB1 logic channel configuration parameter, the first SRB1 RLC configuration parameters, the 2nd SRB1 SRB1 matches somebody with somebody Parameter is put including at least one of following：2nd SRB1 SRB1 marks, the 2nd SRB1 logic channel configuration parameter, the 2nd SRB1 RLC configuration parameters.

Wherein, the logic channel configuration parameter includes at least one of following：When prioritized bit rates, token bucket size Between.

Specifically, prioritized bit rates are the minimum-rate requirement guarantees of each logic channel, are configured to infinity, anticipate Taste only after the resource of this logic channel is met, and can just consider the logic channel lower than its priority.Existing It is control signaling due to what is typically transmitted in SRB1 in LTE, its requirement to time delay and reliability is very high, and therefore, SRB1 has Limit priority, resource distribution will preferentially ensure, still, still preferential using highest if carried out data transmission using SRB1 Level, may because general data bag may require that more resources for control signaling come if carrying out resource distribution The fairness for influenceing the reliability and resource of real control signaling transmission to use.Therefore, in the present embodiment, by the 2nd SRB1 The prioritized bit rates of logic channel be configured to not that (i.e. the 2nd SRB1 logic channel configuration parameter includes value to be infinitely great It is not infinitely great prioritized bit rates), so as to avoid the influence that general data bag is transmitted to real control signaling.

Alternatively, after step 401, before step 402, this method also includes at least one following step：

When wireless connection, which re-establishes request message, carries small data transmission configured information, network side apparatus is according to wirelessly connecting It is terminal configuration logic channel configuration parameter to connect and re-establish the small data transmission configured information of request message carrying；

When wireless connection, which re-establishes request message, does not carry small data transmission configured information, network side apparatus is according to certainly Figure part is that terminal configures logic channel configuration parameter；

When wireless connection, which re-establishes request message carrying, triggers the reason for this wireless connection re-establishes request, network side The reason for triggering this wireless connection that device re-establishes request message carrying according to wireless connection re-establishes request is matched somebody with somebody for terminal Put RLC configuration parameters；

When wireless connection re-establish request message do not carry triggering this wireless connection re-establish request the reason for when, net Network side device re-establishes the small data transmission configured information of request message carrying for eventually according to self-condition or according to wireless connection End configuration RLC configuration parameters.

Alternatively, the above method also includes：The wireless connection for receiving terminal transmission in the network side apparatus sets up request During message, the wireless connection that the network side apparatus sends carrying SRB1 configuration parameters sets up message to the terminal.Wherein, institute The particular content for stating SRB1 configuration parameters is same as above, therefore is repeated no more in this.

In addition, the embodiment of the present invention also provides a kind of data transmission method, comprise the following steps：Terminal sends wireless connection Request message is re-established to network side apparatus；Network side apparatus re-establishes request message according to wireless connection, sends wireless connection Message is re-established to terminal；Terminal re-establishes message according to wireless connection, sends wireless connection and re-establishes completion message to network Side device；

Alternatively, if the terminal have activated Access Layer safety, the terminal is set up according to related Access Layer safe machine Put first security information；If the terminal does not activate Access Layer safety, the terminal sets the first safety letter Cease for preset value.

Alternatively, if the terminal have activated Access Layer safety, the terminal is carried out using second security information Associated safety is operated；

Under the conditions of at least one of, the terminal disregards operation related to second security information：The end End is without activation Access Layer safety；Second security information is set to preset value；The terminal receive the second security information without The configured information of effect.

Alternatively, if having activated Access Layer safety between the network side apparatus and the terminal, the network side dress Put and carry out associative operation using first security information；If without activation access between the network side apparatus and the terminal Layer safety, then the network side apparatus ignores the operation related to first security information.

Alternatively, if having activated Access Layer safety between the network side apparatus and the terminal, the network side dress Install second security information；If without activation Access Layer safety, institute between the network side apparatus and the terminal Network side apparatus is stated to set second security information for preset value and/or set the invalid configured information of the second security information.

The application is described in detail below by specific embodiment.

Fig. 5 is the flow chart for the data transmission method that the embodiment of the present invention one is provided.As shown in figure 5, in the present embodiment, Network side apparatus is base station.The data transmission method that the present embodiment is provided comprises the following steps：

Step 501：Terminal sends wireless connection and re-establishes request message to base station.

Alternatively, the terminal uses chain of command data transmission scheme.The wireless connection, which is re-established in request message, to be taken The security information of band first；First security information is short message integrity verification code (shortMAC-I)；If the terminal Access Layer safety is have activated, then the terminal presses related Access Layer security mechanism and sets first security information (specifically can be with With reference to 3GPP TS36.331, for example, the service where Radio Link Failure occurs using Access Layer safe key, terminal for terminal Cell ID, terminal C-RNTI etc. generate first security information)；If the terminal does not activate Access Layer safety, The terminal set first security information for preset value (for example, complete 1, full 0 or any about definite value, the preset value with Access Layer security algorithm is uncorrelated).

Alternatively, terminal re-establishes request message by wireless connection and indicates there is small data transmission.Specifically, wirelessly connect Connect and re-establish request message carrying small data transmission configured information, to indicate there is small data transmission；Or, wireless connection is rebuild The small data transmission configured information that vertical message is carried indicates there is small data transmission.

Alternatively, terminal carried in wireless connection re-establishes request message triggering this wireless connection re-establish operation Reason, wherein, the reason can be：Radio Link Failure, reaches RLC maximum retransmissions.

Alternatively, for the terminal using chain of command data transmission scheme, send wireless connection in the terminal and re-establish Before request, methods described also includes：The terminal notification network side apparatus supports that wireless connection re-establishes function or support Access Layer security function, wherein, the terminal can notify that network side is filled by the configured information included in one of following message Put：Wireless connection, which sets up request message, wireless connection and sets up completion message, terminal capability and transmit message, uplink information and transmit, to disappear Cease, (message passes to core network device to Non-Access Stratum Attach Request message by non-access layer information, and MME can pass through S1 Interface message passes to base station apparatus).

Step 502：Base station receives wireless connection and re-establishes request message, sends and carries wirelessly connecting for SRB1 configuration parameters Connect and re-establish message to terminal.

Wherein, SRB1 configuration parameters are encapsulated in dedicated radio resources configuration parameter, the dedicated radio resources configuration ginseng Also include the other specification for being wirelessly transferred correlation in number.

Alternatively, SRB1 configuration parameters include logic channel configuration parameter, wherein, the logic channel configuration parameter is included One below or combination：Prioritized bit rates, token bucket scale time.

Alternatively, SRB1 configuration parameters include RLC configuration parameters, wherein, the RLC configuration parameters are more than 32 comprising value RLC maximum retransmissions.

Alternatively, base station is that terminal configures logic channel configuration parameter according to small data transmission configured information.

Alternatively, it is terminal configuration RLC configuration parameters that base station re-establishes failure cause according to wireless connection.

Alternatively, chain of command data transmission scheme is used between the network side apparatus and the terminal.If the net Network side device have activated Access Layer safety with the terminal room, then the network side apparatus is carried out using first security information Associative operation (for example, safety check of terminal)；If the network side apparatus does not activate Access Layer peace with the terminal room Entirely, then the network side apparatus ignores the operation related to the first security information.

Alternatively, the wireless connection, which is re-established, carried in message the second security information and/or the second security information is invalid Configured information；Second security information is next hop link count value (NextHoppingCount).Wherein, if described Network side apparatus have activated Access Layer safety with the terminal room using chain of command data transmission scheme and the terminal, then described Network side apparatus sets the second security information；If the network side apparatus uses chain of command transmission side data with the terminal room Case and the terminal do not activate Access Layer safety, then the network side apparatus set the second security information be preset value (for example, Complete 1, full 0 or any about definite value, the preset value are uncorrelated to Access Layer security algorithm) and/or the second security information is set Invalid configured information.If the terminal have activated Access Layer safety, the terminal carries out phase using the second security information Close safety operation (for example, for updating Access Layer security parameter, being encrypted so as to follow-up with integrity protection etc.)；If institute State terminal and do not activate Access Layer safety, and/or, second security information be set to preset value (for example, complete 1, full 0 or Any about definite value, the preset value is uncorrelated to Access Layer security algorithm), and/or, the terminal receive the second security information without The configured information of effect, the terminal disregards operation related to the second security information.

Step 503：Terminal re-establishes completion message by wireless connection and carries upstream data to base station.

Based on above-described embodiment, in the small data wireless communication system using NB-IoT systems as representative, for example, working as physics Layer step-out reaches that (parameter is configured by wireless connection signaling, existing maximum for the maximum retransmission of high-rise (rlc layer) Number of retransmissions is 32 times) when, wireless connection can be triggered and re-established.Pass through wireless heterogeneous networks (RRC, Radio Resource Control) re-establish flow and rapidly recover SRB1, i.e., the recovery of connection is triggered by Access Layer (AS, Access Stratum). When the data of these systems are transmitted on SRB1, fast quick-recovery SRB1 can allow quick resume data transmission, so that beneficial In exception reporting type data transfer (delay requirement of such data is higher, usually require that in 10 seconds complete transmission, for example, Fire alarm, flood warning, earthquake warning etc.).Otherwise, terminal can be released to idle (idle) state, then again by application layer again Triggering connection is set up, and time delay will substantially increase, most preferably sue and labour opportunity, cause if alarm can not be reported to have missed in time Bigger loss.

Moreover, terminal power consumption when sending message is much larger than when receiving and be standby, the embodiment of the present invention can reduce up Message is sent, so as to reduce power consumption of terminal, increases the stand-by time of terminal to a certain extent, and then reach more excellent terminal electricity The pond life-span.

Fig. 6 is the flow chart for the data transmission method that the embodiment of the present invention two is provided.The area of the present embodiment be the same as Example one It is not：In the present embodiment, SRB1 configuration parameters are carried except wireless connection re-establishes message, wireless connection sets up message SRB1 configuration parameters can be carried, the SRB1 configuration parameters include：First SRB1 SRB1 configuration parameters and/or the 2nd SRB1 SRB1 configuration parameters.

Specifically, step 601：Terminal sends wireless connection and sets up request message to base station, alternatively, described wirelessly to connect Connect and set up request message carrying small data transmission configured information；Step 602：Base station, which is sent, carries wirelessly connecting for SRB1 configuration parameters Connect and set up message to terminal；Step 603：The wireless connection that terminal sends carrying upstream data sets up completion message to base station.Its In, the particular content on SRB1 configuration parameters is repeated no more in this with described in above-described embodiment.

Alternatively, wireless connection, which is re-established, carried in request message the first security information.

Alternatively, wireless connection, which is re-established, carries the second security information and/or the invalid finger of the second security information in message Show information.

Content and handling process on the first security information and the second security information with described in above-described embodiment, therefore in This is repeated no more.

In addition, the embodiment of the present invention also provides a kind of data transmission device, applied to terminal, including：First sending module, Request message is re-established to network side apparatus for sending wireless connection；Second sending module, for according to from network side apparatus The wireless connection of reception re-establishes message, sends wireless connection and re-establishes completion message to the network side apparatus；

Alternatively, the terminal uses chain of command data transmission scheme.

In addition, the embodiment of the present invention also provides a kind of data transmission device, applied to network side apparatus, including：First connects Module is received, the wireless connection sent for receiving terminal re-establishes request message；3rd sending module, for sending wireless connection Message is re-established to terminal；Second receiver module, the nothing of message transmission is re-established for receiving terminal according to the wireless connection Line connection re-establishment completion message；

Concrete processing procedure on said apparatus is repeated no more in this with described in the above method.

In addition, the embodiment of the present invention also provides a kind of data transmission system, including：Terminal and network side apparatus；Terminal, is used Request message is re-established to network side apparatus in sending wireless connection；Network side apparatus, for being rebuild according to the wireless connection Vertical request message, sends wireless connection and re-establishes message to terminal；Terminal, is additionally operable to re-establish message according to wireless connection, hair Wireless connection is sent to re-establish completion message to network side apparatus；

Alternatively, if the terminal have activated Access Layer safety, the terminal is carried out using second security information Associated safety is operated；Under the conditions of at least one of, the terminal disregards operation related to second security information：

Alternatively, the terminal, is additionally operable to before transmission wireless connection re-establishes request message to network side apparatus, leads to Cross the configured information included in one of following message and notify that network side apparatus supports wireless connection to re-establish function or support to connect Enter a layer security function：

Fig. 7 is the schematic diagram of data transmission system provided in an embodiment of the present invention.As shown in fig. 7, what the present embodiment was provided Data transmission system, including terminal and network side apparatus.Wherein, terminal includes the first sending module and the second sending module, Network side apparatus includes the first receiver module, the second receiver module and the 3rd sending module.

Specifically, the first sending module sends wireless connection and re-establishes request message to network side apparatus, the first reception Module receives the wireless connection and re-establishes request message, and the 3rd sending module re-establishes request message according to wireless connection, hair Send wireless connection to re-establish message, the second sending module re-establishes message according to the wireless connection, send wireless connection and rebuild Vertical completion message, the second receiver module receives wireless connection and re-establishes completion message.

In addition, the specific handling process on said system is with described in the above method, therefore repeated no more in this.

In practical application, the first sending module, the second sending module and the 3rd sending module are, for example, to have to send work( The wireless communication unit of energy, the first receiver module and the second receiver module are, for example, the wireless communication unit with receive capabilities.

In summary, in embodiments of the present invention, terminal is realized by nothing when progress wireless connection re-establishes operation The quick resume data transmission of line connection re-establishment.Wherein it is possible to which re-establishing completion message by wireless connection carries upstream data To network side apparatus.

The embodiment of the present invention also provides a kind of terminal, including：First wireless communication unit and the second wireless communication unit, First wireless communication unit connects the second wireless communication unit, and the first wireless communication unit is set to transmission wireless connection and re-established Request message is to network side apparatus, and the second wireless communication unit is set to re-establish from network side apparatus reception wireless connection Message, the first wireless communication unit is also configured to transmission wireless connection and re-establishes completion message to network side apparatus；

Wherein, the first wireless communication unit is, for example, the wireless communication unit with sending function, the second radio communication list Member is, for example, the wireless communication unit with receive capabilities.

In addition, the embodiment of the present invention also provides a kind of computer-readable recording medium, be stored with computer executable instructions, The computer executable instructions realize the above-mentioned data transmission method of end side when being performed.

In addition, the embodiment of the present invention also provides a kind of computer-readable recording medium, be stored with computer executable instructions, The computer executable instructions realize the above-mentioned data transmission method of network side when being performed.

One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program Related hardware (such as processor) is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, Disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits Realize.Correspondingly, each module/unit in above-described embodiment can be realized in the form of hardware, for example, pass through integrated circuit To realize its corresponding function, it would however also be possible to employ the form of software function module is realized, such as is stored in by computing device Program/instruction in reservoir realizes its corresponding function.The present invention is not restricted to the knot of the hardware and software of any particular form Close.

The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The present invention is not by upper State the limitation of embodiment, merely illustrating the principles of the invention described in above-described embodiment and specification is not departing from the present invention On the premise of spirit and scope, various changes and modifications of the present invention are possible, and these changes and improvements both fall within claimed In the scope of the invention.

Claims

1. a kind of data transmission method, it is characterised in that including：

Terminal sends wireless connection and re-establishes request message to network side apparatus；

The terminal re-establishes message according to the wireless connection received from the network side apparatus, sends wireless connection and has re-established The network side apparatus is given into message；

Wherein, the wireless connection re-establishes completion message, the wireless connection and re-establishes request message and described wirelessly connect Connect and re-establish message and meet at least one of：

The wireless connection, which is re-established, carries the second security information and/or the invalid configured information of the second security information in message.

2. according to the method described in claim 1, it is characterised in that first security information is short message integrity verification Code；Second security information is next hop link count value.

3. according to the method described in claim 1, it is characterised in that methods described also includes：

If the terminal have activated Access Layer safety, the terminal sets first peace according to related Access Layer security mechanism Full information；If the terminal does not activate Access Layer safety, it is preset value that the terminal, which sets first security information,.

4. according to the method described in claim 1, it is characterised in that methods described also includes：

If the terminal have activated Access Layer safety, the terminal carries out associated safety behaviour using second security information Make；

Under the conditions of at least one of, the terminal disregards operation related to second security information：The terminal does not have There is activation Access Layer safety；Second security information is set to preset value；It is invalid that the terminal receives the second security information Configured information.

5. according to the method described in claim 1, it is characterised in that send wireless connection in the terminal and re-establish request message Before network side apparatus, methods described also includes：

The terminal notifies that network side apparatus supports that wireless connection is re-established by the configured information included in one of following message Function supports Access Layer security function：

Wireless connection, which sets up request message, wireless connection and sets up completion message, terminal capability and transmit message, uplink information and transmit, to disappear Breath, Non-Access Stratum Attach Request message.

6. the method according to any one of claim 3 to 5, it is characterised in that the terminal uses chain of command data transfer Scheme.

7. according to the method described in claim 1, it is characterised in that the wireless connection re-establishes request message and carries small data Transmit configured information and/or trigger the reason for this wireless connection re-establishes request.

8. method according to claim 7, it is characterised in that the reason includes：Radio Link Failure, reaches radio chains Road controls RLC maximum retransmissions.

9. the method according to claim 1,7 to 8 any one, it is characterised in that the wireless connection re-establishes message and taken Band wireless signaling carries SRB1 configuration parameters.

10. a kind of data transmission method, it is characterised in that including：

The wireless connection that network side apparatus receiving terminal is sent re-establishes request message；

The network side apparatus sends wireless connection and re-establishes message to the terminal；

The wireless connection that the network side apparatus reception terminal re-establishes message transmission according to the wireless connection is re-established Completion message；

11. method according to claim 10, it is characterised in that first security information is short message integrity verification Code；Second security information is next hop link count value.

12. method according to claim 10, it is characterised in that methods described also includes：

If have activated Access Layer safety between the network side apparatus and the terminal, the network side apparatus uses described the One security information carries out associative operation；

If without activation Access Layer safety between the network side apparatus and the terminal, the network side apparatus is ignored and institute State the related operation of the first security information.

13. method according to claim 10, it is characterised in that methods described also includes：

If have activated Access Layer safety between the network side apparatus and the terminal, the network side apparatus sets described the Two security information；

If without activation Access Layer safety between the network side apparatus and the terminal, the network side apparatus sets described Second security information is preset value and/or sets the invalid configured information of the second security information.

14. the method according to any one of claim 12 to 13, it is characterised in that the network side apparatus and the terminal Between use chain of command data transmission scheme.

15. the method according to claim 10 or 14, it is characterised in that receive wireless connection weight in the network side apparatus Set up before request message, methods described also includes：

The network side apparatus knows that the terminal supports wireless connection weight by the configured information included in one of following message Set up function or support Access Layer security function：

16. method according to claim 10, it is characterised in that the wireless connection re-establishes request message and carries decimal According to transmission configured information and/or trigger the reason for this wireless connection re-establishes request.

17. method according to claim 16, it is characterised in that what the network side apparatus receiving terminal was sent wirelessly connects Connect after re-establishing request message, the network side apparatus is sent before wireless connection re-establishes message to the terminal, described Method also includes at least one following step：

When the wireless connection, which re-establishes request message, carries small data transmission configured information, the network side apparatus is according to institute It is terminal configuration logic channel configuration ginseng to state wireless connection and re-establish the small data transmission configured information of request message carrying Number；

When the wireless connection, which re-establishes request message, does not carry small data transmission configured information, the network side apparatus root It is that the terminal configures logic channel configuration parameter according to self-condition；

When the wireless connection, which re-establishes request message carrying, triggers the reason for this wireless connection re-establishes request, the net The reason for triggering this wireless connection that network side device re-establishes request message carrying according to the wireless connection re-establishes request RLC configuration parameters are controlled for the terminal collocation wireless link；

When the wireless connection re-establish request message do not carry triggering this wireless connection re-establish request the reason for when, institute State the small data transmission instruction letter that network side apparatus re-establishes request message carrying according to self-condition or according to wireless connection Cease and configure RLC configuration parameters for terminal.

18. method according to claim 10, it is characterised in that the wireless connection re-establishes message and carries wireless signaling Carry SRB1 configuration parameters.

19. method according to claim 10, it is characterised in that methods described also includes：Received in the network side apparatus When the wireless connection sent to terminal sets up request message, the network side apparatus, which is sent, carries wireless signaling carrying SRB1 configurations The wireless connection of parameter sets up message to the terminal.

20. the method according to claim 18 or 19, it is characterised in that the SRB1 configuration parameters include：First SRB1 SRB1 configuration parameters and/or the 2nd SRB1 SRB1 configuration parameters, the first SRB1 be used for transmit signaling, described second SRB1 is used to transmit data.

21. method according to claim 20, it is characterised in that the SRB1 configuration parameters include at least one of following： SRB1 marks, logic channel configuration parameter, wireless spread-spectrum technology RLC configuration parameters.

22. method according to claim 21, it is characterised in that the logic channel configuration parameter includes following at least one ：Prioritized bit rates, token bucket scale time.

23. method according to claim 21, it is characterised in that the RLC configuration parameters include the RLC that value is more than 32 Maximum retransmission.

24. a kind of data transmission device, applied to terminal, it is characterised in that including：

First sending module, request message is re-established to network side apparatus for sending wireless connection；

Second sending module, for re-establishing message according to the wireless connection received from the network side apparatus, transmission wirelessly connects Connect and re-establish completion message to the network side apparatus；

25. device according to claim 24, it is characterised in that first security information is short message integrity verification Code；Second security information is next hop link count value.

26. device according to claim 24, it is characterised in that described device also includes：First setup module, if for The terminal have activated Access Layer safety, and first security information is set according to related Access Layer security mechanism；If the end End is without activation Access Layer safety, and it is preset value to set first security information.

27. device according to claim 24, it is characterised in that described device also includes：First processing module, if for The terminal have activated Access Layer safety, and associated safety operation is carried out using second security information；In at least one of Under the conditions of, ignore the operation related to second security information：

The terminal does not activate Access Layer safety；Second security information is set to preset value；The terminal receives second The invalid configured information of security information.

28. device according to claim 24, it is characterised in that described device also includes：Notification module, for first Before sending module transmission wireless connection re-establishes request message to network side apparatus, pass through the finger included in one of following message Show that information notifies that network side apparatus supports wireless connection to re-establish function or supports Access Layer security function：

29. device according to claim 24, it is characterised in that the wireless connection re-establishes request message and carries decimal According to transmission configured information and/or trigger the reason for this wireless connection re-establishes request.

30. the device according to claim 24 or 29, it is characterised in that the wireless connection re-establishes message and carries wireless Signaling bear SRB1 configuration parameters.

31. a kind of data transmission device, applied to network side apparatus, it is characterised in that including：

First receiver module, the wireless connection sent for receiving terminal re-establishes request message；

3rd sending module, message is re-established to the terminal for sending wireless connection；

Second receiver module, rebuilds for receiving the wireless connection that the terminal re-establishes message transmission according to the wireless connection Vertical completion message；

32. device according to claim 31, it is characterised in that first security information is short message integrity verification Code；Second security information is next hop link count value.

33. device according to claim 31, it is characterised in that described device also includes：Second processing module, if for Access Layer safety is have activated between the network side apparatus and the terminal, related behaviour is carried out using first security information Make；If ignoring and the first security information phase without activation Access Layer safety between the network side apparatus and the terminal The operation of pass.

34. device according to claim 31, it is characterised in that described device also includes：Second setup module, if for Access Layer safety is have activated between the network side apparatus and the terminal, second security information is set；If the network Without activation Access Layer safety between side device and the terminal, it is preset value and/or setting to set second security information The invalid configured information of second security information.

35. device according to claim 31, it is characterised in that described device also includes：Module is known, for first Receiver module reception wireless connection is re-established before request message, and institute is known by the configured information included in one of following message Terminal is stated to support wireless connection to re-establish function or support Access Layer security function：

36. device according to claim 31, it is characterised in that the wireless connection re-establishes request message and carries decimal According to transmission configured information and/or trigger the reason for this wireless connection re-establishes request.

37. the device according to claim 31 or 36, it is characterised in that the wireless connection re-establishes message and carries wireless Signaling bear SRB1 configuration parameters.

38. a kind of data transmission method, it is characterised in that including：

The network side apparatus re-establishes request message according to the wireless connection, sends wireless connection and re-establishes message to described Terminal；

The terminal re-establishes message according to the wireless connection, sends wireless connection and re-establishes completion message to the network side Device；

39. the method according to claim 38, it is characterised in that the wireless connection re-establishes request message and carries decimal According to transmission configured information and/or trigger the reason for this wireless connection re-establishes request.

40. the method according to claim 38 or 39, it is characterised in that the wireless connection re-establishes message and carries wireless Signaling bear SRB1 configuration parameters.

41. a kind of data transmission system, it is characterised in that including：Terminal and network side apparatus,

The terminal, request message is re-established to network side apparatus for sending wireless connection；

The network side apparatus, for re-establishing request message according to the wireless connection, sends wireless connection and re-establishes message To the terminal；

The terminal, is additionally operable to re-establish message according to the wireless connection, sends wireless connection and re-establish completion message to institute State network side apparatus；

42. system according to claim 41, it is characterised in that the wireless connection re-establishes request message and carries decimal According to transmission configured information and/or trigger the reason for this wireless connection re-establishes request.

43. the system according to claim 41 or 42, it is characterised in that the wireless connection re-establishes message and carries wireless Signaling bear SRB1 configuration parameters.