CN103533665A - Realization method of LTE terminal comprehensive tester state machine - Google Patents

Abstract

The invention provides a realization method of an LTE terminal comprehensive tester state machine, and belongs to the technical field of mobile communication. The state machine comprises three steady states: an initial state, an idle state and a connected state. The three steady states can be transferred into each other via executing procedures of initialization, registration, calling, on-hook and releasing. The idle state can execute the registration procedure to return to the idle state, and also can execute the calling procedure to transfer to the connected state. A signaling interaction process of an LTE terminal comprehensive tester and a terminal is realized by the state machine via executing a state table constructed on the basis of an LTE standard protocol. According to the realization method of the LTE terminal comprehensive tester state machine, correctness and compatibility of a high-level protocol stack function in the LTE terminal comprehensive tester are ensured, accessing of different protocol state terminals is considered, and a terminal message of an abnormal procedure can be responded so that the realization method of the LTE terminal comprehensive tester state machine has great compatibility and robustness, and thus terminal testing efficiency can be greatly enhanced.

Description

A kind of implementation method of LTE terminal comprehensive test instrument state machine

Technical field

The present invention relates to mobile communication technology field, relate in particular to a kind of implementation method of LTE terminal comprehensive test instrument state machine.

Background technology

In the process of LTE industry fast development, communication test instrument is one of key link.Wherein terminal comprehensive tester, owing to whole radio-frequency performances of terminal and basic calling/audio-frequency function accurately being tested, becomes the important foundation instrument of the work such as the research and development of LTE terminal, production, authentication.

Higher-layer protocols module is the nucleus module of LTE terminal comprehensive test instrument, provide on the one hand the non-access formula/Radio Resource of 3GPP protocol specification to control (NAS/RRC) layer basic function, complete the configuration of instrument side lower layer protocol stack and physical layer and mutual with the space interface signaling of terminal peer layer, also need on the other hand controlled module instruction to control, carry out corresponding parameter configuration event or Signalling exchange flow process, the basic test function of support terminal test instrumentation.

Yet the state machine of existing comprehensive test instrument is easy to enter abnormality when terminal is initiated the idle message of improper flow process, causes higher-layer protocols capability error, and existing state machine can only respond specific terminal access message, has significant limitation.

In order to guarantee correctness and the compatibility of LTE terminal comprehensive test instrument protocol stack function on the middle and senior level, the invention provides a kind of efficient LTE terminal comprehensive test instrument state machine implementation method, the method has been considered the access of different agreement state terminal, described state machine can respond the terminal message of improper flow process, has good compatibility and robustness.

Summary of the invention

(1) technical problem that will solve

Technical problem to be solved by this invention is: how to provide a kind of implementation method of LTE terminal comprehensive test instrument state machine, to improve compatibility and the correctness of LTE terminal comprehensive test instrument state machine and to improve testing efficiency.

(2) technical scheme

In order to solve the problems of the technologies described above, the invention provides a kind of implementation method of LTE terminal comprehensive test instrument state machine, be specially:

Described state machine comprises three stable states:

Initial state: LTE terminal comprehensive test instrument completes and powers on, each module starts operation, and lower layer protocol stack and physical layer parameter do not configure;

Idle state: LTE terminal comprehensive test instrument protocol module on the middle and senior level completes the parameter configuration to lower layer protocol stack and physical layer, instrument generation system information broadcast also sends, the space interface signaling can receiving terminal sending and the instruction of comprehensive test instrument internal control module;

Connected state: LTE terminal comprehensive test instrument is connected with terminal finishing service, establishes the reference measure channel of terminal test requirement.

Between described three stable states, can move mutually by following steps:

A, LTE terminal comprehensive test instrument move to Idle state by initialization flow process under initial state;

B, LTE terminal comprehensive test instrument are got back to Idle state execute register flow path under Idle state after;

C, LTE terminal comprehensive test instrument move to connected state execute call flow under Idle state after;

D, LTE terminal comprehensive test instrument move to Idle state execute on-hook flow process under connected state after;

E, LTE terminal comprehensive test instrument move to initial state after executing under Idle state or connected state and discharging flow process;

Particularly, described step B, C, D belong to LTE terminal comprehensive test instrument and terminal is carried out Signalling exchange flow process, when carrying out described B, C, D flow process:

Before carrying out the process of Signalling exchange, state machine can be in advance according to standard agreement flow process, constructs and idle message state table one to one, according to the content of state table, realizes signalling interactive process;

In carrying out the process of Signalling exchange, higher-layer protocols can be carried out local terminal to lower layer protocol stack in real time according to message content and reshuffled, and keeps and the consistency of terminal interface-free resources.

Particularly, when described state machine migrates to Idle state, not only can carry out register flow path but also can carry out call flow, specifically carry out which flow process and controlled by a switch value, process is as follows:

Detect the switch value of Idle state, when switch value is off state, carry out register flow path, then switch value is made as on;

When switch value is on, the source of detected state table and destination, carry out MT call flow if source is comprehensive test instrument, if source is terminal, carries out MO call flow;

Described MT calls out the calling that refers to that comprehensive test instrument is initiated, and described MO calls out the calling that refers to that terminal is initiated.

Particularly, described state table comprises following information: current transient state, when presteady state, source, destination, message, next transient state, next stable state;

The concrete steps that the described content according to state table realizes signalling interactive process comprise:

G1: state machine is searched corresponding state table according to current instantaneous value and current steady-state value;

G2: be in the time of will sending message under current transient state, the message in state machine transmission state table, to terminal, is carried out G3; Under current transient state, be while wanting receipt message, the upstream message of state machine receiving terminal, if received message does not mate with the message in current state table, enters abnormal protection pattern, filters out this dead message; If received message is consistent with the message in current state table, carry out G3;

G3: judge whether state machine has next transient state, gives current instantaneous value if having by next instantaneous value, carry out G1; If there is no next transient state, be updated to next stable state.

Particularly, in described step B, higher-layer protocols is carried out local terminal to lower layer protocol stack and is reshuffled specifically and comprise the following steps:

B1, upper layer protocol module send control command, the mode of distributing ascending resource to the indication of media access control (MAC) layer;

The connection request space interface signaling that B2, LTE terminal comprehensive test instrument receiving terminal are initiated is also set up RRC connection;

B3, upper layer protocol module are initiated the authentication process with LTE terminal, and the safe mode control procedure of non-access (NAS) layer;

B4, upper layer protocol module initiate to activate test loop back mode process;

B5, upper layer protocol module send control command, configuration packet convergence (PDCP) layer safety protection function, and the access (AS) of initiation and LTE terminal layer safe mode control procedure;

B6: upper layer protocol module is initiated the dedicated radio resources layoutprocedure with LTE terminal room.

Particularly, in described step C, higher-layer protocols is carried out local terminal to lower layer protocol stack and is reshuffled specifically and comprise the following steps:

C1, according to " source " list item in state table, select to carry out MT flow process or MO flow process;

C2, complete RRC and connect after, upper layer protocol module is initiated the AS layer safe mode control procedure with LTE terminal;

C3, upper layer protocol module are initiated configuration and evolved packet system (EPS) the bearer context activation request with LTE terminal room dedicated radio resources;

C4, upper layer protocol module are obtained the EPS contextual information of LTE terminal;

C5, upper layer protocol module send control command, and configuration MAC layer is to the method for salary distribution of ascending resource and random access procedure.

Particularly, in described step D, upper layer protocol module is carried out local terminal to lower layer protocol module and is reshuffled specifically and comprise the following steps:

D1, control module receive user instruction, send order notice upper layer protocol module and carry out on-hook flow process;

D2, upper layer protocol module sending controling instruction, the method for salary distribution of indication MAC layer to ascending resource;

D3, upper layer protocol module are initiated the RRC connection release message with LTE terminal;

D4, upper layer protocol module sending controling instruction, indication lower layer protocol stack is got back to initial configuration, and state machine moves to Idle state.

Described steps A and E realize by carrying out particular step under user controls.

Particularly, the concrete steps that described steps A realizes are:

A1, control module send order notice upper layer protocol module and carry out initial configuration;

A2, upper layer protocol module send control command, complete physical layer configurations;

A3, upper layer protocol module send control command, complete the configuration of MAC layer;

A4, upper layer protocol module send control command, complete the configuration of wireless chain control layer (RLC);

A5, upper layer protocol module send control command, complete the configuration of PDCP layer;

A6, upper layer protocol module generation system broadcast piece, by sending after MAC and physical layer process.

Particularly, the concrete steps that described step e realizes are:

E1, control module receive user instruction, send order notice upper layer protocol module and carry out releasing operation;

E2, upper layer protocol module sending controling instruction, the MAC of indication lower layer protocol stack, RLC, PDCP discharges all configurations and resource;

E3, upper layer protocol module sending controling instruction, indication physical layer discharges all configurations and resource is got back to initial state.。

(3) beneficial effect

The technical scheme that the present invention records has covered the required NAS/RRC function minimal set of comprehensive test instrument, when guaranteeing protocol function correctness, greatly reduce software development and maintenance cost, the Idle state designing in this external state machine can compatible different agreement state under the behavior of terminal, significantly improve the testing efficiency of comprehensive test instrument.

Accompanying drawing explanation

The modular structure schematic diagram of the LTE terminal comprehensive test instrument that Fig. 1 provides for technical solution of the present invention;

The stable state migration schematic diagram of the LTE terminal comprehensive test instrument state machine that Fig. 2 provides for technical solution of the present invention;

The LTE terminal comprehensive test instrument state machine that Fig. 3 provides for technical solution of the present invention and the stable state of terminal interaction migration flow chart;

The signaling time-sequence figure of state machine initialization flow performing process in the LTE terminal comprehensive test instrument that Fig. 4 provides for technical solution of the present invention;

The signaling time-sequence figure of the LTE terminal comprehensive test instrument state machine register flow path implementation that Fig. 5 provides for technical solution of the present invention;

The RRC that Fig. 6 initiates because of MT for the LTE terminal comprehensive test instrument state machine call flow that technical solution of the present invention provides connects the signaling time-sequence figure of foundation;

The RRC that Fig. 7 is initiated by MO for the LTE terminal comprehensive test instrument state machine call flow that technical solution of the present invention provides connects the signaling time-sequence figure setting up;

Follow-up signaling time-sequence figure after the LTE terminal comprehensive test instrument state machine call flow RRC connection that Fig. 8 provides for technical solution of the present invention is set up;

The signaling time-sequence figure of the LTE terminal comprehensive test instrument state machine on-hook flow performing process that Fig. 9 provides for technical solution of the present invention;

The LTE terminal comprehensive test instrument state machine that Figure 10 provides for technical solution of the present invention discharges the signaling time-sequence figure of flow performing process.

Embodiment

For making object of the present invention, content and advantage clearer, below in conjunction with Figure of description and embodiment, the specific embodiment of the present invention is described in further detail, following examples are only for the present invention is described, but are not used for limiting the scope of the invention.

The invention provides a kind of implementation method of LTE terminal comprehensive test instrument state machine, between three independent stable states of state machine, can move flexibly, to the LTE terminal test of different manufacturers, can accomplish correctness and compatibility.Take this state machine also can expand other test modules as basis, and as LTE terminal measurement report, with frequently and alien frequencies switching, ftp business etc. (test function is not set forth in this article), further improve terminal test efficiency.

Fig. 1 has provided the structural representation of LTE terminal comprehensive test instrument.

Wherein, the control module of LTE terminal comprehensive test instrument is responsible for the electrifying startup of instrument hardware environment and software module, and receives user's operational order, as initialization, calling and on-hook etc.; Upper layer protocol module receives the space interface signaling of sending out from control module and terminal, and lower layer protocol stack module (comprising PDCP, RLC and MAC), physical layer block are configured, and completes agreement specified standard flow process; Interface by separately between higher-layer protocols module and lower layer protocol stack module, higher-layer protocols module and physical layer block, lower layer protocol stack module and physical layer block, physical layer block and radio-frequency module carries out the mutual of space interface signaling and data.

LTE terminal comprehensive test instrument state machine of the present invention mainly comprises initial state, three stable states of Idle state and connected state.Initial state shows as LTE terminal comprehensive test instrument and completes and power on, and each module starts operation, and at this moment lower layer protocol stack and physical layer do not configure; Idle state shows as LTE terminal comprehensive test instrument protocol module on the middle and senior level and completes the configuration to lower layer protocol stack and physical layer, and instrument generation system information broadcast also sends, the space interface signaling and the instruction of comprehensive test instrument internal control module that can receiving terminal send; Connected state shows as LTE terminal comprehensive test instrument and is connected foundation with terminal finishing service, and the reference measure channel that completes terminal test requirement is set up.

Fig. 2 has provided the transition graph between three stable states of LTE terminal comprehensive test instrument state machine, according to LTE terminal comprehensive test instrument and terminal, carries out mutual normal process, and the migration between described stable state mainly comprises the following steps:

A.LTE terminal comprehensive test instrument moves to Idle state by initialization flow process under initial state;

B.LTE terminal comprehensive test instrument is got back to Idle state execute register flow path under Idle state after;

C.LTE terminal comprehensive test instrument moves to connected state execute call flow under Idle state after;

D.LTE terminal comprehensive test instrument moves to Idle state execute on-hook flow process under connected state after;

E.LTE terminal comprehensive test instrument moves to initial state after executing under Idle state or connected state and discharging flow process.

In described step B, C, D, state machine and the terminal of LTE terminal comprehensive test instrument are carried out corresponding Signalling exchange.Before carrying out the process of Signalling exchange, state machine can be in advance according to LTE standard agreement flow process, constructs and idle message state table one to one, realizes the Signalling exchange of described comprehensive test instrument and terminal by carrying out corresponding state table.In addition, in carrying out the process of Signalling exchange, upper layer protocol module can be according to real-time the carrying out local terminal to lower layer protocol module and reshuffle of message content, keeps and the consistency of terminal interface-free resources.

Below, first described state table is introduced, as shown in the table, each state table of state machine comprises following content:

Current transient state

Work as presteady state

Source

Destination

Message

Next transient state

Next stable state

In above-mentioned state table, " message " list item is for recording the particular content of interaction message between LTE terminal comprehensive test instrument and terminal." source " and " destination " respectively recording messages come source device and object-based device.In the present embodiment, described equipment mainly refers to LTE terminal comprehensive test instrument or terminal, in statement below, with SS, represents comprehensive test instrument, UE GC group connector.Message in described state machine is all to adopt the mode of carrying out immediately in the present embodiment, send immediately, after reception, reply immediately, so do not comprise time value, those skilled in the art can easily be expanded to transmission lag with the situation of ∕ or receive delay on the basis of this technical scheme.

State machine is in operation and carries out which state table is by the current steady-state value of state machine and current instantaneous value is common determines, when the value of the current steady-state value of state machine and current instantaneous value and " when presteady state " and " current transient state " these two list items of a certain state table is identical, state machine carries out the content of this state table.

As previously mentioned, described state machine comprises a series of state tables that are mutually related, and when presteady state is consistent, between state table, can realize associated with next state table " current transient state " list item by " next transient state " list item of current state table.After state machine completes the forwarding of message in " message " list item in current state table, continue to carry out the identical state table of value of " current transient state " list item value and " next transient state " list item in current state table, this process can be carried out repeatedly, until " next transient state " in current state table is empty, state machine completes the migration between stable state, the current steady-state value of giving state machine by the value of " next stable state " list item.

Accompanying drawing 3 has provided state machine and by executing state table, has completed the detailed process of stable state migration:

Step 1: state machine is given its current instantaneous value by subtransient state value;

Step 2: state machine is searched list item value and the current instantaneous value of state machine of " current transient state " and " working as presteady state " in state table, current steady-state value is identical state table all;

Under the current transient state of presteady state, if exist a plurality of state tables corresponding with it in state machine, state machine selects one of them state table as current state table, and this state table can be predetermined by switch value, or choose according to received message traversal.

Step 3: judge that according to the content of this state table " source " and " destination " state machine is to send message or receipt message.If the content of " source " record is SS, that " destination " records is UE, and explanation is that state machine will send message to terminal, performs step 4; If the content of " source " record is UE, that " destination " records is SS, illustrates that state machine is while wanting receipt message under current transient state, performs step 6;

Step 4: state machine sends to terminal equipment by the message of " message " list item record;

Step 5: state machine checks " next transient state " list item of current state table, if its value is sky, state machine transient operation finishes, and by the list item value of " next stable state ", gives current steady-state value; Otherwise, by current state table " next transient state " list item value, give current instantaneous value, return to step 2;

Step 6: state machine receives the message of self terminal, and it is mated with " message " list item in state table, if the match is successful, perform step 5.Otherwise enter abnormal protection, process, perform step 7;

Step 7: filter out the dead message receiving, and starting protection timer, perform step 8;

Step 8: state machine checks that whether timer is overtime, if receive the message of coupling in timer timing time, performs step 5; If timer expired, judges state transition failure, state machine returns to current residing stable state.

Above-mentioned steps B, C, D are that LTE terminal comprehensive test instrument and terminal are carried out the mutual execution step of space interface signaling according to LTE standard agreement, in carrying out the process of Signalling exchange, upper layer protocol module also can be according to real-time the carrying out local terminal to lower layer protocol module and reshuffle of message content, keeps and the consistency of terminal interface-free resources.And steps A, E are under user controls, the layoutprocedure of the upper layer protocol module of described comprehensive test instrument to lower layer protocol module.Specifically describe the layoutprocedure of each step protocol module on the middle and senior level to lower layer protocol module below.

L3 agreement refers to upper-layer protocol in the following description, and L2 agreement refers to lower layer protocol.Described low layer comprises PDCP, RLC and MAC layer.

The layoutprocedure of the initialization flow process protocol module on the middle and senior level that accompanying drawing 4 understands LTE terminal comprehensive test instrument state machine specifically to lower layer protocol module:

A1: control module receives user instruction, sends order notice upper layer protocol module and carries out initial configuration;

In this step, state machine LTE_L3 protocol stack receives master control control command activation cell, and now other instructions will be considered as being extremely dropped, and have an abnormal module to be used for processing abnormal control module instruction and abnormal LTE terminal upstream message in this state machine.

A2: upper layer protocol module sends control command, completes physical layer configurations;

In this step, state machine LTE_L3 protocol stack is configured physical layer protocol stack, the initial power that comprises physical channel, antenna, transmission means, TDD sub-frame formats, and physical layer detection reference signal (SRS), channel quality indication (CQI), the configuration of dispatch request (SR) and uplink power control etc.

A3: upper layer protocol module sends control command, completes the configuration of media access control layer (MAC);

In this step, the configuration of MAC layer is mainly comprised: HARQ process, random access procedure, the configuration of transmission channel and logic channel, the scheduling mode configuration of system broadcast message.

A4: upper layer protocol module sends control command, completes the configuration of wireless chain control layer (RLC);

In this step, RLC sublayer is between MAC layer and PDCP layer.Its function mainly comprises automatic duplicate answer, reorder and duplicate detection, to Service Data Unit be connected in series, the function of Segmentation and Reassembly.Each RLC entity of LTE_L3 protocol stack arrangement is a kind of in following 3 kinds of data-transmission modes: transparent mode (TM), and without affirmation mode (UM) and affirmation mode (AM).And configure corresponding maximum retransmission, trigger the PDU(protocol Data Unit inquire after) byte number of accumulative total number and PDU accumulative total etc.

A5: upper layer protocol module sends control command, completes the configuration of media access control layer (PDCP);

In this step, the configuration of PDCP is mainly comprised: configure the pattern that each PDCP entity being associated with radio bearer is used compression without a head, configuring it is closed condition to the encryption of the data of user plane and control plane and integrity protection function.

The A3 in above-mentioned steps wherein, A4 and A5 set up Signaling Radio Bearer (SRB0, SRB1, SRB2) and Data Radio Bearer (DRB1) Shi Junyou relates at L3 protocol stack, and there is a set of independently configuration corresponding these three sublayers of each radio bearer.Wherein SRB0 is used TM pattern, is mapped to logic channel CCCH upper, at MAC and rlc layer transparent transmission; SRB1 and SRB2 are used AM pattern, are mapped to the upper processing that adds head at MAC and rlc layer of logic channel DCCH.DRB1 is used AM pattern, is mapped to logic channel DTCH upper, for transmit the business datum in the default EPS carrying of core net at Access Network.

A6: upper layer protocol module generation system broadcast piece, by sending after MAC and physical layer process.

In this step, the code stream that broadcast that higher-layer protocols issues generates through coding by MAC layer according to the physical layer that is handed down in the broadcast scheduling mode cycle of higher-layer protocols configuration, by issuing radio frequency after physical layer process, be modulated to high frequency, from antenna, send out, but the MIB piece in broadcast is periodically sent by physical layer after MAC layer sends to physical layer for the first time, is no longer subject to the scheduling of MAC layer, and the signaling status of state machine is that physical layer sends broadcast on eating dishes without rice or wine.So far, complete LTE terminal comprehensive test instrument small area and set up, the current steady-state value of state machine is Idle state, switch value is made as to the state of off, and current transient state is reset, and without loss of generality, in the present embodiment, the subtransient state label after stable state migration is 1, lower same.Protocol stack state machine can be connected with terminal.

With reference to the accompanying drawings 5, the layoutprocedure of the register flow path protocol module on the middle and senior level that illustrates LTE terminal comprehensive test instrument state machine to lower layer protocol module:

B1: upper layer protocol module sends control command, the mode that the MAC layer of indication L2 distributes ascending resource;

In this step, in state machine initialization procedure, configuration MAC layer is regardless of joining ascending resource, not issuing Downlink Control Information DCI0(terminal only has the Downlink Control Information DCI0 that separates oneself could use corresponding ascending resource), therefore LTE terminal will not have to send the resource of upstream data, now, registration connection request for receiving terminal, L3 protocol stack must configure MAC layer and issue DCI0 according to the dispatch request of terminal (SR), and unlatching periodically sends the synchronous TA value of ascending control channel.

B2:LTE terminal comprehensive test instrument receiving terminal under idle condition initiate connection request start register and set up RRC connection;

In this step, terminal is obtained after whole system broadcast informations, obtains the public resource information of current area, starts to initiate competition random access procedure, and terminal sends with access lead code Preamble, is called Msg1; Net side (instrument side) is replied accidental access response RAR, comprises uplink scheduling information, is called Msg2; Terminal is received after RAR, uses uplink scheduling information transmitting terminal sign wherein, is called Msg3; Net side is received after Msg3 message, replys the solution of the random access of terminal challenge, i.e. Msg4.Msg1 and Msg2 are completed by lower layer protocol stack alternately completely, and in Msg3, carry rrc layer message, i.e. RRC connection request message, it not only, as the sign of terminal, also initiates RRC establishment of connection process simultaneously, connect set up former because mo_Signalling.Network side receives reply RRC connection and sets up message, the dedicated radio resources information such as SRB1 of configurating terminal side.Msg4 has two kinds of configuration modes, and a kind of RRC that carries in Msg4 connects and to set up message, also just needs content configuration that L3 protocol stack just sets up message by RRC connection in advance to L2 protocol stack; Another kind of Msg4 is connected with RRC set up separately transmission of message.In state machine herein, be the former that use.In RRC connection setup complete message, carry NAS message, i.e. the Attach Request message of NAS layer and PDN(Data packet network) be connected to set up and ask.In LTE signalling interactive process, have a feature to be exactly, terminal and net side, before Signaling Radio Bearer SRB2 sets up, can, by the transmission of SRB1 carrying NAS message, be carried NAS message in RRC message.

B3: upper layer protocol module is initiated the authentication process with LTE terminal, and the safe mode control procedure of NAS layer;

In this step, network side is initiated authentication and key agreement (AKA) process, in authentication request message, send random number and authentication sign (AUTN), comprising identify label identifying code MAC of network side etc., terminal is received after this message, and the parameters such as MAC are verified, if be proved to be successful, complete the authentication to network side, reply authentication response message, wherein the authentication parameters R ES of carried terminal, net side is proved to be successful RES, the identification authentication of complete paired terminal; Net side and terminal are pressed key grade formation base key K ASME separately simultaneously, complete cipher key agreement process.In the invention of this state machine, can support two kinds of authentication arithmetics, a kind of is sky algorithm (dummy), another kind is commercial algorithm; The performance test of the expansion support of two kinds of algorithms to different terminals;

Network side is initiated the safe mode control flow of NAS layer subsequently, and NAS layer refers to Non-Access Stratum, activates the encryption of NAS message and integrity protection.First send NAS safe mode command, wherein configure encryption and protection algorithm integrallty type that NAS message is used, and feed back safe context information; If the integrity protection of this message is proved to be successful, terminal is replied NAS safe mode and is completed message.The encryption of NAS message and integrity protection are completed by L3 protocol stack internal module, use agreement specified standard algorithm.

B4: upper layer protocol module initiates to activate test loop back mode process;

In this step, the activation of test loop back mode is optional, activates test loop back mode, is for terminal under connected state sends to instrument the data winding that receives the descending transmission of instrument, in order to the bit error rate (BER) of test terminal.This process is that net side sends activation test mode message and loopback test pattern is configured.Wherein, test loop back mode A is for the single mode test in E-UTRAN, and B is for E-UTRAN for test loop back mode, the multimode tests such as UTRAN and GSM.Terminal activates after test pattern, replys activation test pattern and completes message, completes test mode activation flow process.

B5: upper layer protocol module sends control command, configuration PDCP safety protection function, and the AS layer safe mode control procedure of initiation and LTE terminal;

In this step; AS layer refers to Access Layer; it is that PDCP by L2 protocol stack completes that the safe mode of AS layer is controlled function; so activated the defencive function that encryption and integrity protection must activation network side protocol stacks in idle message, and to have activationary time be just to come into force after corresponding idle message process completes.Send message AS layer safe mode control command, encryption and protection algorithm integrallty type that configuration RRC message is used; If the integrity protection of this message is proved to be successful, terminal is replied safe mode and is completed message.

B6: upper layer protocol module is initiated the capability query process to LTE terminal;

In this step; net side is used terminal capability apply for information to obtain the ability information of terminal; terminal is replied terminal ability information message to it; comprising terminal grade (UE Category); the algorithm that encryption and integrity protection are supported; PDCP layer IP header-compressed (ROHC) is supported algorithm, the terminal ability informations such as physical layer sky line options.

B7: upper layer protocol module is initiated the layoutprocedure with LTE terminal room dedicated radio resources;

In this step, network side is by RRC reconfiguration message, the dedicated radio resources information such as the SRB2 of configurating terminal side and DRB1.The Attach Request message of terminal is responded simultaneously, in RRC reconfiguration message, carry to adhere to receive and adhere to receipt message and activate default EPS bearing context request.Adhere in receipt message, inform terminal network setting, network capabilities and TAI(tracing area sign) list, and be the unique temporary identity GUTI after terminal distribution is adhered in net, after this terminal can be used this temporary mark as its identify label.In activating default EPS bearing context request message, be terminal distribution APN, service quality (QoS) configuration and Packet Data Network (PDN) address information etc.Terminal is carried out configuration wherein, and replys RRC and reshuffled message as response.After SRB2 sets up, terminal is carried and has been adhered to message and activated default EPS bearing context response information and inform net side on SRB2.Terminal completes after attaching process, and network side obtains the context information substantially of terminal.

B8: initiate RRC Connection Release process after the attaching process that upper layer protocol module follows LTE terminal closely completes and get back to Idle state.

In this step, L3 protocol stack sends RRC connection release message, wherein carries release cause, redirection information and end

The mobile management control information of end under idle pulley, discharges the radio bearer of setting up with terminal, SRB1, SRB2 and DRB1.In to the dispose procedure of lower layer protocol stack; first send control command to MAC; indicate it no longer to issue Timing Advance (TA); this is for keeping terminal and net side PUCCH(Physical Uplink Control Channel) important parameter of synchronizeing, next sends control command and discharges it to the encryption of RRC message and integrity protection function to PDCP.Send afterwards control command to the reset configuration of all SRB and DRB of L2 protocol stack (MAC, RLC, PDCP).The final control command configuration MAC that sends distributes the mode of up DCI0 for periodically, may initiate MO request prepare for terminal in paging.

So far, LTE terminal comprehensive test instrument executes register flow path and has got back to Idle state under Idle state, by Idle state, give current steady-state value, switch value is made as to the state of on, the current instantaneous value of initialization is 1, under current instantaneous value, there are three satisfactory state tables, in follow-up Signalling exchange, can select one of them initial condition table as current state table.

With reference to the accompanying drawings 6,7,8, the layoutprocedure of the call flow protocol module on the middle and senior level that illustrates LTE terminal comprehensive test instrument state machine to lower layer protocol module:

The mode that enters call flow under the idle condition of C1:LTE terminal comprehensive test instrument after registration has two kinds: MT and MO;

In this step, MT is that comprehensive test instrument makes a call, and with the process that terminal connects, MO is that terminal makes a call.

Below in conjunction with Fig. 6, describe the process of MT in detail:

The first step: control module receives user's operation, sends paging instructions to upper layer protocol module (Idle state after registration);

Second step: upper layer protocol module putting effective time, is initiated paging to terminal according to paging cycle, and beep-page message is directly to send to MAC layer, sends after the processing of MAC layer and physical layer from eating dishes without rice or wine.It should be noted that, the beep-page message that uses this time point to send, may be arrived by a plurality of terminal monitorings, therefore in beep-page message Paging, need to carry the sign of object call terminal, can be the fixedly identify label IMSI of terminal, can be also that in registration process, the temporary identity for terminal configuration identifies TMSI.Receive the terminal of beep-page message, the sign of wherein carrying is verified, if marking matched, initiate follow-up paging flow process;

The 3rd step: upper layer protocol module sends control command configuration MAC and distributes the mode of up DCI0 to ask from periodically sending to become according to up SR, and unlatching periodically sends the synchronous TA value of ascending control channel;

The 4th step: MAC layer is waited for random access procedure, and detailed process is similar to the random access procedure in registration process, former because mt-Access but the connection of the RRC in RRC connection request message is set up;

The 5th step: terminal sends RRC connection setup complete message to upper layer protocol module, wherein carries NAS messaging service and connects the request of foundation.

Below in conjunction with Fig. 7, describe the process of MO in detail:

The first step: terminal is initiated random access to net side, similar to the random access in MT calling procedure, but RRC in RRC connection request message connect set up former because mo-Data; Before completing the process of random access, be also can carry out immediately the operation of following second step after protocol stack state machine is received RRC connection request;

Second step: upper layer protocol module sends control command configuration MAC and distributes the mode of up DCI0 for asking according to up SR, and configuration cycle property sends the synchronous TA value of ascending control channel;

The 3rd step: terminal sends RRC connection setup complete message to upper layer protocol module, wherein carries NAS messaging service and connects the request of foundation.

Between MO in described C1 step and MT, topmost difference is the object difference that makes a call and set up, and it is different to connect the reason of setting up.But the signaling process after MO and MT is all identical, below in conjunction with Fig. 8, describes described step C2-C5 in detail:

C2: complete after RRC connection, upper layer protocol module is initiated the AS layer safe mode control procedure with LTE terminal;

In this step; need to reactivate the safeguard protection of AS layer; the safeguard protection of AS is set up relevant to RRC connection; each RRC connects while being released; safeguard protection is also released; while therefore again rebuilding RRC connection, safeguard protection also needs to reactivate, and detailed process is identical with the AS layer safe mode control activation in registration process.

C3: upper layer protocol module is initiated configuration and the EPS bearer context activation request with LTE terminal room dedicated radio resources;

In this step, upper layer protocol module sends RRC reconfiguration message, sets up the SRB2 of end side and the dedicated radio resources information such as DRB1 of at least one AM pattern, simultaneously in RRC reconfiguration message, can carry and activate special-purpose EPS bearer context request message, for setting up special-purpose EPS carrying.Terminal is replied RRC and has been reshuffled message, the successful foundation of sign SRB2 and DRB1.

C4: the EPS contextual information that upper layer protocol module is obtained LTE terminal completes call flow and enters connected state;

In this step, terminal is replied and is activated special-purpose EPS bearer context reception as response.LTE technology is to guarantee to provide permanent online service, therefore, in endpoint registration process, can set up default EPS bearing, and a default QoS service guarantee is provided.When establishing call connection, if any particular service demand, can select to set up 1～7 special-purpose EPS carrying, if there is no specific demand, also can not set up dedicated bearer.It should be noted that each EPS carrying is corresponding with a Data Radio Bearer DRB, therefore, when setting up special-purpose EPS carrying, need to guarantee to have set up enough DRB for shining upon special-purpose EPS carrying.

C5: upper layer protocol module sends control command, configuration MAC layer is to the method for salary distribution of ascending resource and random access procedure.

In this step, upper layer protocol module sends control command, and it is periodicity that configuration MAC distributes the mode of up DCI0.Why adopting in this way, is because under connected state, and net side needs and terminal keeps synchronous, if both sides do not have for a long time in signaling or data alternately, terminal may step-out go offline.When L2 periodically issues DCI0, terminal will send empty bag when there is no transmitting uplink data, and net side can be adjusted the Timing Advance (TA) of terminal accordingly, makes terminal keep synchronous.In addition, the random access procedure that also configures MAC layer is that msg4 is connected with high-rise RRC and sets up message and separately send.

So far, LTE terminal comprehensive test instrument finishing service connects, and has set up reference measure channel migration to connected state, connected state is given to the current steady-state value of state machine, and the current instantaneous value of initialization is 1.

With reference to the accompanying drawings 9, the layoutprocedure of the on-hook flow process protocol module on the middle and senior level that illustrates LTE terminal comprehensive test instrument state machine to lower layer protocol module:

D1: control module receives user instruction, sends order notice upper layer protocol module and carries out on-hook flow process;

D2: upper layer protocol module sending controling instruction, the method for salary distribution of indication MAC layer to ascending resource;

In this step, L3 protocol stack sends control command to MAC, indicates its request of SR according to terminal to issue DCI0, stops the periodicity ascending resource of terminal to distribute, and terminal will no longer periodically send data to net side.

D3: upper layer protocol module is initiated the RRC connection release message with LTE terminal;

In this step, L3 protocol stack sends RRC connection release message, and this message no longer needs the reply of receiving terminal.Be notification terminal, instrument will disconnect service connection with it, discharge the radio-resource-configuration of terminal, all radio bearers etc.

D4: upper layer protocol module sending controling instruction, indication L2 gets back to initial configuration, and state machine moves to Idle state.

In this step, L3 protocol stack sends control command and issues the synchronous TA value of ascending control channel to MAC layer dwelling period, and next configures PDCP and discharges it to the encryption of RRC message and integrity protection function.Then send control command to the reset configuration of all SRB and DRB of L2 protocol stack (MAC, RLC, PDCP).The random access procedure that finally configures MAC layer is in msg4, to carry RRC connection to set up message, is convenient to terminal access at random next time.

So far, LTE terminal comprehensive test instrument has been realized the on-hook operation to terminal, completed the migration between connected state and Idle state, can initiate new calling procedure, Idle state is given to the current steady-state value of state machine, the current instantaneous value of initialization is 1, has three satisfactory state tables under current instantaneous value, can select one of them initial condition table as current state table in follow-up Signalling exchange.

Face is with reference to accompanying drawing 10, the layoutprocedure of the release flow process protocol module on the middle and senior level that illustrates LTE terminal comprehensive test instrument state machine to lower layer protocol module:

E1: control module receives user instruction, sends order notice upper layer protocol module and carries out releasing operation;

In this step, under connected state and Idle state, user can initiate the configuration that releasing operation discharges current comprehensive test instrument by control module.

E2: upper layer protocol module sending controling instruction, MAC, RLC, the PDCP of indication L2 discharge all configurations and resource;

In this step, L3 protocol stack, first by local terminal control command, discharges PDCP layer safeguard protection relevant configuration.Next sends control command and discharges whole radio bearers that local terminal is set up, and comprises SRB0, SRB1, SRB2 and all DRB.

E3: upper layer protocol module sending controling instruction, indication physical layer discharges all configurations and resource is got back to initial state.

In this step, L3 protocol stack sends control command and discharges local terminal cell configuration, is mainly whole configurations of physical layer protocol stack, and after community discharges, physical layer is removed the transmission of all signals, comprises cell broadcast messages etc.

So far, LTE terminal comprehensive test instrument completes releasing operation, and closes transmitter, gets back to initial state.Under this stable state, state machine can carry out initialization operation again, and moves to different states in the reciprocal process of follow-up and terminal.

The core stable state Idle state of state machine of the present invention of take is below example, provides a concrete simplified example to help understanding state machine according to the operation method of state table.In this example state table, according to register flow path, MT call flow, MO call flow makes to safeguard three cover state tables under Idle state, in following example state table, is not complete signaling process state table, but for convenience of description, simplified:

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

1

UE

SS

b1

2

Idle state

Idle state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

1

SS

UE

c1

3

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

1

UE

SS

c’1

4

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

2

SS

UE

b2

5

Idle state

Idle state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

5

UE

SS

b3

6

Idle state

Idle state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

6

SS

UE

b4

7

Idle state

Idle state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

7

UE

SS

b5

Idle state

Idle state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

3

UE

SS

c2

8

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

8

SS

UE

c3

9

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

9

UE

SS

c4

11

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

4

SS

UE

c’2

10

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

10

UE

SS

c’3

11

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

11

SS

UE

C1

12

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

12

UE

SS

C2

13

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

13

SS

UE

C3

14

Idle state

Connected state

Current transient state

Source

Destination

Message

Next transient state

Work as presteady state

Next stable state

14

UE

SS

C4

Idle state

Connected state

In above-mentioned state table, interrelated by " next transient state " of current state table and " current state " of NextState table between table, as the state table that is 2 to " current transient state " value, according to it, " " value is 5 can determine to be the state table that " current transient state " value is 5 after this state table to next transient state.In state table, the value of " current transient state " need to guarantee when different agreement flow process is used different messages to be separated from each other when regulation.

In above-mentioned table, the current instantaneous value that register flow path is used has: 1,2,5,6,7; The current instantaneous value that MT call flow is used has: 1,3,8,9,11,12,13,14; The current instantaneous value that MO call flow is used has: Isosorbide-5-Nitrae, 10,11,12,13,14; Wherein, because MT and MO set up in service connection process, the follow-up signaling process connecting after having set up at RRC is consistent, so used the state table 11,12,13,14 that part is identical.When state machine operation register flow path is after to execute current instantaneous value be 7 state table, because " next transient state " list item value be sky, represent that flow process finishes, state machine state is moved successfully, by " renewal stable state " list item value Idle state, gives current steady-state value.After state machine is carried out business Establishing process to complete current instantaneous value is 14 state table, because " next transient state " list item value be sky, represent that flow process finishes, state machine state is moved successfully, by " next stable state " list item value connected state, gives current steady-state value.

In the situation that current instantaneous value is 1, state machine can with state table have 3, now state machine according to the selected state table of switch value as current state table.When switch value is on, if select, send message, interacting message is followed successively by c1, c2, c3, c4, C1, C2, C3, C4.If selective reception message, according to the initial uplink message traversal b1 of terminal, c ' 1 these two message, according to the matching principle of message content, select corresponding state table, carry out follow-up interacting message; When switch value is off, first state table that state machine is selected is receipt message b1, according to this state table, carries out follow-up interacting message.

Claims (10)

1. an implementation method for LTE terminal comprehensive test instrument state machine, is characterized in that, described state machine comprises three stable states:

Initial state: LTE terminal comprehensive test instrument completes and powers on, each module starts operation, and lower layer protocol stack and physical layer parameter do not configure;

Idle state: LTE terminal comprehensive test instrument protocol module on the middle and senior level completes the parameter configuration to lower layer protocol stack and physical layer, instrument generation system information broadcast also sends, the space interface signaling can receiving terminal sending and the instruction of comprehensive test instrument internal control module;

Connected state: LTE terminal comprehensive test instrument is connected with terminal finishing service, establishes the reference measure channel of terminal test requirement;

Between described three stable states, can move mutually by following steps:

A, LTE terminal comprehensive test instrument move to Idle state by initialization flow process under initial state;

B, LTE terminal comprehensive test instrument are got back to Idle state execute register flow path under Idle state after;

C, LTE terminal comprehensive test instrument move to connected state execute call flow under Idle state after;

D, LTE terminal comprehensive test instrument move to Idle state execute on-hook flow process under connected state after;

E, LTE terminal comprehensive test instrument move to initial state after executing under Idle state or connected state and discharging flow process.

2. the method for claim 1, is characterized in that, described step B, C and D are the flow processs that LTE terminal comprehensive test instrument and terminal are carried out Signalling exchange, when carrying out described B, C, D flow process:

Before carrying out the process of Signalling exchange, state machine can be in advance according to standard agreement flow process, constructs and idle message state table one to one, according to the content of state table, realizes signalling interactive process;

In carrying out the process of Signalling exchange, higher-layer protocols can be carried out local terminal to lower layer protocol stack in real time according to message content and reshuffled, and keeps and the consistency of terminal interface-free resources.

3. method as claimed in claim 2, is characterized in that, when described state machine migrates to Idle state, not only can carry out register flow path but also can carry out call flow, specifically carries out which flow process and is controlled by a switch value, and process is as follows:

Detect the switch value of Idle state, when switch value is off state, carry out register flow path, then switch value is made as on;

When switch value is on, the source of detected state table and destination, carry out MT call flow if source is comprehensive test instrument, if source is terminal, carries out MO call flow;

Described MT calls out the calling that refers to that comprehensive test instrument is initiated, and described MO calls out the calling that refers to that terminal is initiated.

4. method as claimed in claim 2, is characterized in that, described state table comprises following information: current transient state, when presteady state, source, destination, message, next transient state, next stable state;

The concrete steps that the described content according to state table realizes signalling interactive process comprise:

G1: state machine is searched corresponding state table according to current instantaneous value and current steady-state value;

G2: be in the time of will sending message under current transient state, the message in state machine transmission state table, to terminal, is carried out G3; Under current transient state, be while wanting receipt message, the upstream message of state machine receiving terminal, if received message does not mate with the message in current state table, enters abnormal protection pattern, filters out this dead message; If received message is consistent with the message in current state table, carry out G3;

G3: judge whether state machine has next transient state, gives current instantaneous value if having by next instantaneous value, carry out G1; If there is no next transient state, be updated to next stable state.

5. method as claimed in claim 2, is characterized in that, in described step B, higher-layer protocols is carried out local terminal to lower layer protocol stack and reshuffled specifically and comprise the following steps:

B1, upper layer protocol module send control command, the mode of distributing ascending resource to the indication of media access control (MAC) layer;

The connection request space interface signaling that B2, LTE terminal comprehensive test instrument receiving terminal are initiated is also set up RRC connection;

B3, upper layer protocol module are initiated the authentication process with LTE terminal, and the safe mode control procedure of non-access (NAS) layer;

B4, upper layer protocol module initiate to activate test loop back mode process;

B5, upper layer protocol module send control command, configuration packet convergence (PDCP) layer safety protection function, and the access (AS) of initiation and LTE terminal layer safe mode control procedure;

B6: upper layer protocol module is initiated the dedicated radio resources layoutprocedure with LTE terminal room.

6. method as claimed in claim 2, is characterized in that, in described step C, higher-layer protocols is carried out local terminal to lower layer protocol stack and reshuffled specifically and comprise the following steps:

C1, according to " source " list item in state table, select to carry out MT flow process or MO flow process;

C2, complete RRC and connect after, upper layer protocol module is initiated the AS layer safe mode control procedure with LTE terminal;

C3, upper layer protocol module are initiated configuration and evolved packet system (EPS) the bearer context activation request with LTE terminal room dedicated radio resources;

C4, upper layer protocol module are obtained the EPS contextual information of LTE terminal;

C5, upper layer protocol module send control command, and configuration MAC layer is to the method for salary distribution of ascending resource and random access procedure.

7. method as claimed in claim 2, is characterized in that, in described step D, upper layer protocol module is carried out local terminal to lower layer protocol module and reshuffled specifically and comprise the following steps:

D1, control module receive user instruction, send order notice upper layer protocol module and carry out on-hook flow process;

D2, upper layer protocol module sending controling instruction, the method for salary distribution of indication MAC layer to ascending resource;

D3, upper layer protocol module are initiated the RRC connection release message with LTE terminal;

D4, upper layer protocol module sending controling instruction, indication lower layer protocol stack is got back to initial configuration, and state machine moves to Idle state.

8. the method for claim 1, is characterized in that, described steps A and E realize by carrying out particular step under user controls.

9. method as claimed in claim 8, is characterized in that, the concrete steps that described steps A realizes are:

A1, control module send order notice upper layer protocol module and carry out initial configuration;

A2, upper layer protocol module send control command, complete physical layer configurations;

A3, upper layer protocol module send control command, complete the configuration of MAC layer;

A4, upper layer protocol module send control command, complete the configuration of wireless chain control layer (RLC);

A5, upper layer protocol module send control command, complete the configuration of PDCP layer;

A6, upper layer protocol module generation system broadcast piece, by sending after MAC and physical layer process.

10. method as claimed in claim 8, is characterized in that, the concrete steps that described step e realizes are:

E1, control module receive user instruction, send order notice upper layer protocol module and carry out releasing operation;

E2, upper layer protocol module sending controling instruction, MAC, RLC, the PDCP of indication lower layer protocol stack discharge all configurations and resource;

E3, upper layer protocol module sending controling instruction, indication physical layer discharges all configurations and resource is got back to initial state.

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