CN100566195C - Redundant configuration system, redundant configuration switching method and communication processing apparatus - Google Patents
Redundant configuration system, redundant configuration switching method and communication processing apparatus Download PDFInfo
- Publication number
- CN100566195C CN100566195C CNB2006100813411A CN200610081341A CN100566195C CN 100566195 C CN100566195 C CN 100566195C CN B2006100813411 A CNB2006100813411 A CN B2006100813411A CN 200610081341 A CN200610081341 A CN 200610081341A CN 100566195 C CN100566195 C CN 100566195C
- Authority
- CN
- China
- Prior art keywords
- unit
- sequence number
- data cell
- switching
- sent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a kind of redundant configuration system, redundant configuration switching method and communication processing apparatus.Redundant system configuration comprises as the switching of activity system unit initiates the unit and as the unit, switching destination of back-up system unit.In the normal working time, switch the initiation unit and sequence number is sent to switching unit, destination with default fixed intervals, wherein sequence number is attached to connect with non-affirmation data transfer mode via RLC and sends on the data cell of related communicator.Switch the unit, destination and be stored in the sequence number that the normal working time sends from switching initiation unit with fixed intervals, and be added on the up-to-date sequence number of being stored by the number that will be equal to fixed intervals sequence number is advanced, and when the system configuration switching had taken place, the data cell that will have the sequence number that is advanced sent to related communicator.
Description
Technical field
The present invention relates to redundant configuration system, redundant configuration switching method and communication processing apparatus, more specifically, redundant configuration system and its changing method of relating to the communication processing system that is used to have the redundant configuration that realizes by activity system unit and back-up system unit, this changing method are kept non-affirmation (Unacknowledged) data transfer mode in the mobile communication system of having used W-CDMA (Wideband Code Division Multiple Access (WCDMA)) system link connects.
Background technology
In the mobile communication system of W-CDMA (Wideband Code Division Multiple Access (WCDMA)) system that defines in the TS25.322 standard as 3GPP (third generation partnership projects), RLC (radio link control) agreement is positioned as the l2 protocol that is used for the radio access interface between RNC (radio network control device) and the UE (subscriber equipment).The RLS-SDU (RLS service data unit) on upper strata is provided for each the rlc protocol processor that provides among RNC and the UE, according to rlc protocol it is handled, it is divided into RLS-PDU (RLS protocol Data Unit), and send it to related communicator (if the sender is RNC, then the UE as the recipient is related communicator, and vice versa).The rlc protocol processor of related communicator is handled the RLS-PDU that receives according to rlc protocol, it is reassembled as RLS-SDU, and it is provided to the upper strata.
The transfer mode of RLS-PDU between the communicator associated with each other can comprise non-affirmation data transfer mode and affirmation (Acknowledged) data transfer mode.In non-affirmation data transfer mode, only adopt the sequence number verification Function detection to send mistake.Non-affirmation data transfer mode sends upper strata PDU, and does not guarantee to be delivered to the Unacknowledged Mode RLC entity of equity.On the other hand, in confirming data transfer mode, utilize to retransmit and guaranteed error-free transmission.Confirm that data transfer mode sends upper strata PDU, guarantee to be delivered to the affirmation pattern RLC entity of equity simultaneously.
In confirming data transfer mode, utilize status PDU (STATUS PDU), piggyback acknowledgement status PDU (Piggybacked STATUS PDU), reset PDU (RESET PDU) and reset and confirm the control PDU of PDU (RESET ACK PDU), come the transmission of control data PDU, thereby enable to carry out reliable data communication.Status PDU and piggyback acknowledgement status PDU are used to be requested or the status report of non-request, change the window size order, SDU abandons order or SDU abandons affirmation.Reset PDU be used for resetting all protocol statuss, agreement variable and the agreement timer of reciprocity RLC entity so that two peer-entities are synchronous, and send to the recipient by the sender.Reset and confirm that PDU is the affirmation to reset PDU, and send to the sender by the recipient.
On the other hand, RNC (radio network control device) constitutes the core of mobile communication system with kernel code, and adopts the redundant system configuration that comprises activity system unit and back-up system unit.The redundant system configuration is for when the control operation of activity system unit is broken down, serve from the adapter of activity system unit by control operation being switched to the back-up system unit, and keep the height reliability of mobile communications network, and do not cause service disruption.In order when this RNC breaks down, when service is taken in the activity system unit, not cause service disruption, require in switch unit, to keep RLC and connect by switching to the back-up system unit.And connect in order in switch unit, to keep RLC, requirement is after synchronous about the information quilt of initiating the unit as the switching of activity system unit and connect as the RLC between the unit, switching destination of back-up system unit, just carry out and switch, wherein when system configuration is switched, switch to initiate the unit refer to will " from " unit of its switching, switch the unit, destination and refer to switch the unit of " arriving ".Therefore, under normal circumstances, switch the initiation unit and be equal to the activity system unit, switch the unit, destination and be equal to the back-up system unit.
That is, SN (sequence number) information that is attached to data PDU is managed mutually by each the activity system unit in the communicator of the association that communicates with one another via the RLC connection.Therefore, in traditional mobile communication system, in communication processing apparatus, adopted a kind of in the following measure to be used for that operating unit is switched to the back-up system unit from the activity system unit: SN information during the normal running between activity system unit and back-up system unit by synchronously; SN information is synchronous between activity system unit and back-up system unit when system configuration is switched; Perhaps SN resets when switching.
By this way, at Japanese patent application openly among the No.2004-147203 a kind of technology is disclosed in early days, this technology is used for when RNC breaks down the RLC connection suitably being switched to the back-up system unit from the activity system unit, thereby the RLC between the related communicator connects and can not be disconnected.
Utilization is disclosed technology in this patent, can switch to the back-up system unit from the activity system unit by the RSN of the RLC link information in the activity system unit (homing sequence number) value and HFN (Hyper Frame Number) value being sent to the back-up system unit, RLC being connected.Here, the RSN value is attached to reset command (reset PDU), and is used to judge that the order on the receiver side of this reset command retransmits, and the HFN value is used for carrying out transmitting and receive data encryption and decryption.This technology comprises conveyer and synthesizer, conveyer is used for connecting by when the activity system unit switches to the back-up system unit at RLC, the RSN value and the HFN value that are kept at the RLC link information in the activity system unit are sent to the back-up system unit, and synthesizer is used to utilize the RLC link information of upgrading the back-up system unit to the RSN value and the HFN value of back-up system unit notice by this conveyer.Because the required RLC link information in back-up system unit is only upgraded by the RSN value of the RLC link information in the activity system unit and HFN value are sent to the back-up system unit, so the RLC connection can be switched to the back-up system unit from the activity system unit.
Japanese patent application in early days openly among the No.2004-147203 disclosed technology relevant with affirmation mode RLC entity (RLC-AM entity), wherein utilize the control PDU that confirms in the data transfer mode to realize that the transmission of data PDU controls.Because the RLC-AM entity has the reset function of using reset PDU, therefore can under need not the SN in the RLC-AM entity (sequence number) information is taken over from the activity system unit situation of back-up system unit, keep RLC and connect.
Yet, at the Unacknowledged Mode RLC entity (RLC-UM entity) that is used for transmitting data PDU with non-affirmation data transfer mode, because reset function is not provided, therefore require during the normal running between activity system unit and back-up system unit necessary synchronously information, perhaps when system configuration is switched between activity system unit and back-up system unit the information of necessity synchronously.Always transmitting necessary information during the normal running and make under the situation of information synchronization between activity system unit and back-up system unit, information is frequent exchange between activity system unit (switch and initiate the unit) and back-up system unit (switching the unit, destination).Therefore, during operation activity system unit (switch and initiate the unit) applied extra burden, thus the problem that causes basic handling to postpone.In addition, for the necessary information between synchronous movement system unit and the back-up system unit when system configuration is switched, require the SN information of RLC-UM entity to initiate the unit and switch between the unit, destination to transmit in switching with the buffering of RLC data.Therefore, when buffer capacity was big, it took a long time and transmits data, thereby may take place overtimely on the upper strata, thereby RLC connects the worry that may disconnect when existing in system configuration and switching.In addition, in this case, require to switch the normal running when switching of initiation unit.Therefore, be under the situation about causing in the system configuration switching by the fault of switching the initiation unit, the control self of switching initiation unit can not be initiated the unit from switching with data be sent to switching unit, destination, thereby causes the problem of RLC connection disconnection.
Summary of the invention
Thereby, realized that the present invention solves the problems referred to above, the purpose of this invention is to provide a kind of redundant configuration system, a kind of communication processing system and a kind of technology that is used for when keeping the RLC connection, switching the redundant system unit with redundant system configuration, in redundant system configuration, be attached to that RLC (radio link control) via non-affirmation data transfer mode connects and SN (sequence number) information on the data PDU of transmission is reciprocally managed between the communicator of association.
Redundant configuration system according to communication processing apparatus of the present invention has activity system unit and back-up system unit, is used for a series of data cells are sent to related communicator with non-affirmation data transfer mode.Redundant configuration system is included in the unit, switching destination that the switching that is operating as the activity system unit under the normal condition is initiated the unit and be operating as the back-up system unit under normal condition, and when in switching the activity system unit of initiating the unit, breaking down, control operation is switched to switching unit, destination from switching the initiation unit, and switching unit, destination becomes the activity system unit to keep control operation under the situation of interrupting in nothing.
In the normal working time, switch the initiation unit and sequence number is sent to switching unit, destination with default fixed intervals, this sequence number is attached to the data cell that will be sent to related communicator.Switch the unit, destination and be stored in the sequence number that the normal working time sends from switching initiation unit with fixed intervals, and be added on the up-to-date sequence number of being stored by the number that will be equal to fixed intervals sequence number is advanced, and when the system configuration switching had taken place, the data cell that will have the sequence number that is advanced sent to related communicator.
So, redundant configuration system of the present invention has the following advantages.
During normal running, switch and initiate the minimal information that the unit only need be notified required sequence number to switching unit, destination, the synchronous regime of when switched system disposes, taking over sequence number with preparation.Therefore, reduced from switch initiating the unit, thereby reduced the load on the whole device during the normal running to the amount of information of switching unit, destination notice.
In addition, when switching, system configuration there is no need SN is taken over switching unit, destination from switching the initiation unit.Therefore, shortened switching time, and prevented and to have disconnected owing to the overtime link that takes place of connection protocol.
In addition, after having switched system configuration, the unit, switching destination that has become the activity system unit is based on the SN that has been taken over during normal running, and the data that proceed to related communicator send.Therefore, in the non-affirmation data transfer mode of the reset function that does not have SN, even switched system configuration, SN is also synchronous between the communicator of association.Even in switch initiating the unit, break down and switch under the invalid situation of the control self of initiating the unit, also prevented because the asynchronous operation of SN and disconnecting with link between the related communicator.
Description of drawings
Example feature of the present invention and advantage will be from below in conjunction with becoming clear, in the accompanying drawings the detailed description of accompanying drawing:
Fig. 1 shows the block diagram according to the configured in one piece of the communication processing apparatus with redundant system configuration of first embodiment of the invention and relevant apparatus.
Fig. 2 shows the diagrammatic sketch of the relation between SN and the HFN.
Fig. 3 shows in the sequence chart according to the system configuration handover operation in the communication processing apparatus with redundant system configuration of first embodiment of the invention.
Fig. 4 shows the block diagram according to the configured in one piece of the communication processing apparatus with redundant system configuration of second embodiment of the invention and relevant apparatus.
Embodiment
Be used to realize best mode of the present invention below with reference to the accompanying drawing description.
Fig. 1 shows the block diagram according to the configured in one piece of the communication processing apparatus with redundant system configuration of first embodiment of the invention and relevant apparatus.Fig. 2 show be attached to the SN (sequence number: SN is the natural number from 0 to n-1) on the data PDU that sends or receive according to rlc protocol and be used for to send and the HFN (Hyper Frame Number) of the data encryption of reception and deciphering the diagrammatic sketch of relation.
The configured in one piece of this embodiment comprise as the switching of the activity system unit of communication processing apparatus 100 with redundant system configuration initiate unit 1 with as the unit, switching destination 2 of back-up system unit, the related communicator 3 of communicating by letter with communication processing apparatus 100, and the last stage arrangement 4 of communication processing apparatus 100.This configuration is the example of redundant system configuration one to one, and the switching destination unit 2 (back-up system unit) of unit 1 (activity system unit) corresponding to a unit initiated in the switching of one of them unit.The data communication with related communicator 3 is carried out in switching initiation unit 1.Switch unit, destination 2 and during normal running, be in stand-by state, as switching the backup of initiating unit 1.
Switch and initiate unit 1 and switch unit, destination 2 to comprise upper unit 11,21 respectively, send and receive processing unit 12,22, sequence number administrative unit 13,23 is encrypted control unit 14,24, and Redundant Control unit 15,25.
The function of initiating in unit 1 and the switching unit, destination 2 is switched in upper unit 11,21 controls.Send with reception processing unit 12,22 and send data or receive data from it to related communicator 3 and last stage arrangement 4.SN administrative unit 13,23 is synchronous with related communicator 3 with SN.
Encrypt control unit 14,24 and utilize, and HFN (Hyper Frame Number) and other preset parameters from the encryption key of last stage arrangement 4 indications, based on arithmetical operation to going to and coming the transmitting and receive data of communicator 3 of auto correlation to carry out encryption and decryption.HFN is a kind of like this parameter, and its value increases progressively 1 when the SN value turns back to starting point, and by encrypting control unit 14,24 management, as shown in Figure 2. Encrypt control unit 14,24 and change to the encrypting key of Redundant Control unit 15,25 notices from last stage arrangement 4 indications, and encrypted state or change in ciphering configuration in the encryption control unit 14,24.
When the SN value that is attached to the data PDU that sends during normal running reaches predetermined value, switch the Redundant Control unit 15 of initiating unit 1 and notify this SN value to switching unit, destination 2.In addition, if Redundant Control unit 15 receives about the encrypted state in the encryption control unit 14 or the notice of change in ciphering configuration from encrypting control unit 14, then it notifies the SN value of this moment to switching unit, destination 2.For example, be to indicate if be used for the change of the encrypting key of encryption and decryption from last stage arrangement 4, then the SN value corresponding to the data PDU that has been employed its encrypting key is notified to switching unit, destination 2.This is because encrypted state or encryption configuration are being switched initiation unit 1 and switched between the unit, destination 2 by synchronously.When the SN value is initiating Redundant Control unit 15 notices of unit 1 during the normal running from switching when, switch Redundant Control unit 25 these SN values of storage of unit, destination 2.In addition, if Redundant Control unit 25 is instructed to switch from last stage arrangement 4, then the SN value of its each notice storage in sequence number administrative unit 23 and encryption control unit 24 adds the SN value of n/2 (maximum of SN is n-1).The value of adding stored SN value to will be described below.
13,23 management of sequence number administrative unit are attached to the SN of data PDU, and this data PDU is synchronously to send in non-affirmation data transfer mode with related communicator 3.For example, sequence number administrative unit 13,23 is confirmed the order continuity of the SN of the data PDU that receives from the communicator 3 of association, and if the number of detecting quilt skip with discontinuous, then abandon data.
Fig. 3 shows in the sequence chart according to the handover operation of the system configuration in the communication processing apparatus with redundant system configuration of present embodiment.
Referring to figs. 1 to Fig. 3, the handover operation according to the system configuration of present embodiment will be described below.In the following description, the SN that is attached to data PDU is from 0 to n-1 (maximum is n-1).That is, the unit of the SDU on upper strata (service data unit) is divided into " n " individual (SN=0 is to SN=n-1) data PDU and is sent out.
Carry out and to initiate unit 1 with the switching of the communication processing apparatus 100 of the data communication of related communicator 3 first data PDU of SN=0 is sent to related communicator 3, notify SN=0 to switching unit, destination 2 then.When switching unit, destination 2 receives the notice of SN=0, Redundant Control unit 25 storage SN=0.In addition, Redundant Control unit 25 is sent out to encrypting control unit 24 notice SN=0, and increases progressively by the HFN that encrypts control unit 24 management.
Yet, for SN=1 to the subsequent sequence of SN=(n/2)-1 number, switch initiation unit 1 and they are not notified to switching unit, destination 2, even the SN=1 after first data PDU of SN=0 is sent to the communicator 3 of association to the data PDU of SN=(n/2)-1.
Then, when the data PDU of SN=n/2 is sent to related communicator 3, switches and initiate unit 1 to switching unit, destination 2 notice SN=n/2.When switching unit, destination 2 receives the notice of SN=n/2, Redundant Control unit 25 storage SN=n/2.In addition, Redundant Control unit 25 is sent out to the data PDU of encrypting control unit 24 notice SN=n/2.This means the half with the maximum number of the corresponding data PDU that will send in unit of the SDU (service data unit) on upper strata of having outnumbered of the data PDU that ought be sent out, the SN value is notified to switches unit, destination 2.
Similarly, switch to initiate unit 1 not to switching unit, destination 2 notice SN=(n/2)+1 to the subsequent sequence of SN=n-1 number, even it sends to SN=(n/2)+1 communicator 3 of association to the data PDU of SN=n-1.
So, switch to initiate 1 of unit when half of first data PDU and data PDU has been sent to related communicator 3, notify each SN value of SN=0 and SN=n/2 to switching unit, destination 2.When the data PDU with any other sequence number is sent to related communicator 3, switches initiation unit 1 and do not notify any sequence number to switching unit, destination 2.
Operation when switching system configuration under this state will be described below.Suppose switch initiating unit 1 and sent SN=x (after the data PDU of n/2＜x≤n-1), system configuration is switched to the communicator 3 of association.
In this case, related communicator 3 is just being stored the sequence number (seeing the a1 of Fig. 3) of SN=x, switches the just sequence number of storage SN=n/2 in Redundant Control unit 25 of unit, destination 2.When switching unit, destination 2 was disposed by last stage arrangement 4 indication switched systems, the value of n/2 was added on the sequence number that is stored in the SN=n/2 in the Redundant Control unit 25, and SN value (addition results) is notified to sequence number administrative unit 23.Sequence number administrative unit 23 storage SN values (addition results).At this moment, SN=(n/2)+(n/2)=n this means that the SN value has reached its maximum number (n-1) and turned back to its starting point (0), thereby the SN value is updated to 0.Hereinafter, this state be called as the SN value circulate (from 0 to n-1 the circulation).In addition, Redundant Control unit 25 is updated to 0 to encrypting control unit 24 notice SN values, and increases progressively HFN (seeing the a2 of Fig. 3) in encrypting control unit 24.And, encrypt control unit 24 and utilize the HFN after increasing to carry out encryption.
Then, the sequence number of SN=0 is attached on the data PDU that sends to related communicator 3 after system configuration is switched the first time from switching unit, destination 2 (seeing the a3 of Fig. 3).
When the communicator 3 of association received the data PDU of SN=0, the SN value of management equaled " x " in device.Therefore, if the SN value " x " of being managed equals " n-1 ", then related communicator 3 judges that all data PDU all successfully are received, and does not have obliterated data.Yet if the SN value " x " of just being managed is not " n-1 ", it judges that SN=x+1 loses to the data PDU of SN=n-1.In addition, when communicator 3 places in association received the sequence number of SN=0, related communicator 3 identified all data PDU (0 to n-1) and all counts, and the SN value turns back to its starting point, increased progressively the HFN that is used for the data decryption of reception then.
So, in this embodiment, if switch to initiate unit 1 only when half of first data PDU and data PDU has been sent to related communicator 3 to each SN value of switching unit, destination 2 notice SN=0 and SN=n/2, then satisfied and be used for the necessary condition that switched system disposes.Therefore, need during normal running, not notify the sequence number of all data PDU to switching unit, destination 2.Thereby, in this embodiment, can reduce and switch initiate load on the unit 1 and the load on the network (not shown) during the normal running.
In addition, because in this embodiment during normal running, sequence number is initiated unit 1 and is notified to and switches unit, destination 2 from switching, and therefore unnecessaryly when system configuration is switched sequence number information is initiated unit 1 and is notified to switching unit, destination 2 from switching.Therefore, even under the situation that switched system disposes, also can under the situation that does not disconnect the RLC connection, switch system configuration owing to switch the problem of initiating the control operation in the unit 1.
And, in this embodiment, switch unit, destination 2 proceeds to next data cell when system configuration is switched transmission, and the data PDU of SN=0 is sent to related communicator 3.When the communicator 3 of association received the data PDU of SN=0, it identified the SN value and circulates, and increased HFN.Yet, even under the situation that communicator 3 that can not be associated by the data PDU of the SN=0 that switches 2 transmissions of unit, destination when system configuration is switched receives, related communicator 3 also can be by the SN value (it is less than the SN value that has received) of the data PDU that receives next time, identify the SN value and circulate, and can upgrade HFN.Therefore, can guarantee to switch encryption synchronisation between unit, destination 2 and the related communicator 3.
And, if sending to the serial data PDU of related device 3 did not arrive before system configuration is switched continuously, and broken after the pass of " by the SN value of the SN value of sender's (switch to initiate unit 1 and switch unit, destination 2) management＞managed by recipient's (related device 3) " ties up to switching, the timing of then upgrading HFS is asynchronous between sender and recipient.Yet in this embodiment, if the data number that does not have to arrive continuously related device 3 arrive n/2 (half of PDU number) at most, the relation of " by the SN value of the SN value of sender's management＞managed by the recipient " is not broken.This is because the SN value of SN=0 and n/2 is notified to switching unit, destination 2 from switching initiation unit 1, and after system configuration was switched, the SN value of having added SN=n/2 to the SN value of being notified was sent out.That is,, be attached to and also equaling under the worst case before switching the SN value that the device 3 by association receives from the SN value of switching the data PDU that unit, destination 2 sends after the switching even the n/2 data PDU does not arrive related device 3 before switching.Therefore, related device 3 can judge that the data with identical SN value are the data after once circulating, and upgrades HFN.
Fig. 4 shows the block diagram according to the configured in one piece of the communication processing apparatus with redundant system configuration of second embodiment of the invention and relevant apparatus.In a second embodiment, identical among the configuration of switch initiating the unit and switching the unit, destination and first embodiment is except further the design switched the ratio that the redundant system between unit and the switching unit, destination disposes of initiating.That is, in this embodiment, adopted 2 pairs 1 redundant system configuration, unit (switch and initiate unit A5 and switch to initiate unit B 6) is initiated corresponding to the switching of two unit in the unit, switching destination of one of them unit, as shown in Figure 4.
The configured in one piece of this embodiment comprises that the switching of the communication processing apparatus 200 that is used to have the redundant system configuration initiates unit A5, switches and initiate unit B 6 and switch unit, destination 7, related communicator A8, related communicator B9 and go up stage arrangement 4.Switch to initiate unit A5 and carry out data communication with related communicator A8, switch the data communication of 6 execution of initiation unit B and related communicator B9.Switch unit, destination 7 and be in stand-by state during operation, initiate unit A5 or switch the backup of initiating unit B 6 as switching.
Switch and initiate unit A5, switch initiation unit B 6 and switch unit, destination 7 to comprise upper unit 51,61,71 respectively, send and receive processing unit 52,62,72, sequence number administrative unit 53,63,73 is encrypted control unit 54,64,74 and Redundant Control unit 55,65,75.
Switch to initiate unit A5 and switch basic identical in the operation of initiating unit B 6 and the first embodiment of the invention, except SN information is initiated unit A5 and switch to initiate unit B 6 both notify switching unit, destination 7 from switching.
Switching unit, destination 7 depends on to switch and initiates unit A5 or switch to initiate unit B 6 and store respectively from switching and initiate unit A5 and switch the SN information of initiating unit B 6 notices.Therefore, the Redundant Control unit with 2 pairs 1 redundant system configurations as shown in Figure 4 has the bigger memory capacity in Redundancy Management unit such as the configuration of 1 couple shown in Figure 1,1 redundant system.And when initiating unit A5 executive system configuration switching from switching, hand-off process is based on from switching initiation unit A5 notice and stored SN information and carries out.In addition, when carrying out when switching from switch initiating unit B 6, hand-off process is based on from switching and initiates unit B 6 notices and stored SN information is carried out.So, in this embodiment, system configuration is switched and can be initiated unit A5 and switch any one execution of initiating the unit B 6 from switching effectively.
In another embodiment of the present invention, identical among its basic configuration and first embodiment is except SN (sequence number) switches the unit, destination upgrading to be informed to when switching the encrypted state of initiating the unit.
Go to and come auto correlation communicator 3 transmit and receive data encrypted and decipher based on using from the arithmetical operation of the encrypting key 7 of last stage arrangement 4 indications and HFN (Hyper Frame Number) and other preset parameters, as previously mentioned.Owing to indicated the SN value of the data PDU of beginning encryption, therefore switch and initiate unit 1 and notify this SN value, with the encrypted state between synchronous switching initiation unit 1 and the switching unit, destination 2 to switching unit, destination 2.Thereafter, when the generation systems configuration is switched, stored SN owing to switch unit, destination 2 when upgrading encrypted state, the data after therefore switching send and begin from such value: wherein n/2 adds to be added to and just is stored in the SN value of switching the unit, destination 2.
Thereby such advantage is arranged in this embodiment: encrypted state can be initiated between unit and the switching unit, destination synchronous in switching, and need not to notify the transmission information of all data to switching the unit, destination.
In each embodiment of the present invention, switch to initiate the unit and the synchronous interval of SN of switching between the unit, destination takes place twice, but by with the maximum number of PDU divided by 4, the synchronous interval of SN is taken place four times.In this case, the each switching initiates the unit to the SN that switches unit, destination notice be the PDU maximum number divided by 4 multiple of (PDU maximum number 1/4).If the maximum number of PDU equals " n ", then the SN synchronizing information of each notice is SN=0, SN=n/4, SN=2n/4 or SN=3n/4.That is, in the present invention, by with the maximum number of PDU divided by " m " (" m " is equal to or greater than 3 positive integer), also can make to switch and initiate the unit and switch sync interval between the unit, destination that " m " takes place is inferior.In this case, each initiation unit that switches is the multiple of PDU maximum number divided by " m " to the SN that switches unit, destination notice, if wherein the maximum number of PDU equals " n ", the SN synchronizing information of then each notice be SN=0, SN=n/m, SN=2n/m, SN=3n/m ... or SN=(m-1) n/m.
Although system configuration is switched generation after notifying the SN synchronizing information for the second time in each embodiment of the present invention, system configuration is switched also and can (after notifying a SN synchronizing information) be taken place before notifying the 2nd SN synchronizing information.In this case, in switching the unit, destination, SN=n/2 is added on the not notified SN value (SN=0) as a SN synchronizing information, and data begin to send to related device from the data PDU that is attached with SN=n/2 after switching.In addition, if the SN sync interval takes place four times, be from being attached with the data PDU of such SN value in the data that will send to related device after the switching then: wherein SN=n/4 is added on the preceding SN value that once is notified to switching unit, destination by the SN synchronizing information.That is, notify when taking place before the 2nd SN synchronizing information when system configuration switches in, data begin to be sent to related device from the data PDU that is attached with SN=0+ (n/4)=n/4.Notify when taking place before the Three S's N synchronizing information when system configuration switches in, data begin to be sent to related device from the data PDU that is attached with SN=(n/4)+(n/4)=2n/4.Notify when taking place before the 4th SN synchronizing information when system configuration switches in, data begin to be sent to related device from the data PDU that is attached with SN=(2n/4)+(n/4)=3n/4.And, system configuration notifies when taking place after the 4th SN synchronizing information when switching in, SN=(3n/4)+(n/4)=n, this means that the SN value is recycled (from 0 to n-1), data begin to be sent to related device from being attached with the data PDU that is updated to 0 SN value.Similarly, in the present invention, with the maximum number " n " of PDU divided by " m " (" m " is equal to or greater than 3 positive integer), and it is inferior to switch the SN sync interval generation " m " of initiating the unit and switching between the unit, destination, wherein when system configuration switch to take place, data began to be sent to related device from such data PDU: wherein the maximum number of PDU " n "/" m " is added in this time and is notified on the SN synchronizing information of switching the unit, destination.
The aforementioned description of embodiment is provided, so that those skilled in the art can realize and utilize the present invention.And, will be clearly for a person skilled in the art to the various modifications of these embodiment, and the general principle and the specific example of definition here can be applied to other embodiment, and not need to pay creative work.Therefore, the present invention will be confined to the embodiments described herein, but is consistent with claim and the broadest scope that its equivalent limits.
In addition, even in application process claim is revised, the inventor also is intended to all equivalents of the invention of constraint requirements protection.
Claims (13)
1. the redundant configuration system of a communication processing apparatus has and is used for a series of data cells are sent to the activity system unit and the back-up system unit of related communicator with non-affirmation data transfer mode, and described redundant configuration system comprises:
The unit is initiated in switching as the activity system unit, be used for default fixed intervals sequence number being sent to described back-up system unit in the normal working time, wherein said sequence number is attached on the data cell of the communicator that is sent to described association; And
Unit, switching destination as the back-up system unit, be used to be stored in the normal working time from the sequence number of described switching initiation unit with described fixed intervals transmission, and be added on the up-to-date sequence number of being stored by the number that will be equal to described fixed intervals sequence number is advanced, and when the system configuration switching has taken place, the data cell that will have the sequence number that is advanced sends to the communicator of described association
Wherein, when having 0 respectively when being sent to described related communicator with half the data cell of sequence number of data cell maximum number, described switching initiate the unit the normal working time with 0 and half sequence number of data cell maximum number be sent to unit, described switching destination, and
Wherein, when system configuration is switched when having taken place, the data cell that unit, described switching destination will have a following sequence number sends to the communicator of described association: wherein half of data cell maximum number is added on the up-to-date sequence number of being stored.
2. redundant configuration system according to claim 1,
Wherein, when having 0 respectively when being sent to described related communicator with the data cell of the sequence number of the multiple of the 1/m of data cell maximum number, described switching initiate the unit the normal working time with 0 and the sequence number of the multiple of the 1/m of data cell maximum number be sent to unit, described switching destination, wherein m is equal to or greater than 3 positive integer, and
Wherein, when system configuration is switched when having taken place, the data cell that unit, described switching destination will have a following sequence number sends to the communicator of described association: wherein the 1/m of data cell maximum number is added on the up-to-date sequence number of being stored.
3. redundant configuration system according to claim 1 wherein, provides as a plurality of switchings of active unit and initiated the unit and as the unit, switching destination of stand-by unit, and unit, described switching destination comprises:
Switch Redundant Control unit, destination, be used for being stored in the normal working time with described fixed intervals each sequence number that sends from described switching initiation unit, and, be added to switching of being stored by the number that will be equal to described fixed intervals and initiate on the corresponding up-to-date sequence number in unit sequence number to be advanced with described each when unit, described switching destination has been switched to initiate one of unit from described switching when taking over operation.
4. redundant configuration system according to claim 3, wherein, described fixed intervals be the maximum number of data cell divided by m, m is equal to or greater than 3 positive integer.
5. redundant configuration system according to claim 1, wherein, described switching is initiated the unit and is notified described sequence number in the moment of upgrading encrypted state to unit, described switching destination, described encrypted state by manage its value described sequence number circulation time be incremented 1 parameter and by synchronous.
6. redundant configuration system according to claim 1, wherein, communication processing apparatus with described redundant system configuration is a radio network control device, and the communicator of described association is a subscriber equipment, and wherein said redundant configuration system is the mobile communication system that is used for switching the redundant system configuration when described radio network control device breaks down.
7. one kind is used for a series of data cells with each sequence number are sent to the communication processing apparatus of related communicator with non-affirmation data transfer mode, and described communication processing apparatus comprises:
The Redundant Control unit, the described sequence number of described Redundant Control Single Component Management, keeping the synchronous regime of described sequence number with described related communicator,
Wherein, when described Redundant Control unit is used as the activity system unit, when having 0 respectively when being sent to described related communicator with half the data cell of sequence number of data cell maximum number, described Redundant Control unit the normal working time with 0 and half sequence number of data cell maximum number be sent to the back-up system unit; And
Wherein, when described Redundant Control unit is used as the back-up system unit, the described sequence number of half of 0 and the data cell maximum number that described Redundant Control unit receives and storage has transmitted, and sequence number is advanced by half of data cell maximum number is added on the up-to-date sequence number of being stored, and when described Redundant Control unit had been switched to the activity system unit, the data cell that will have the sequence number that is advanced sent to the communicator of described association.
8. communication processing apparatus according to claim 7,
Wherein, when described Redundant Control unit is used as the activity system unit, when having 0 respectively when being sent to described related communicator with the data cell of the sequence number of the multiple of the 1/m of data cell maximum number, described Redundant Control unit the normal working time with 0 and the sequence number of the multiple of the 1/m of data cell maximum number be sent to the back-up system unit, wherein m is equal to or greater than 3 positive integer, and
Wherein, when described Redundant Control unit is used as the back-up system unit, the sequence number of the multiple of the 1/m of storage 0 of described Redundant Control unit and data cell maximum number, and when described Redundant Control unit had been switched to the activity system unit, the data cell that will have following sequence number sends to the communicator of described association: wherein the 1/m of data cell maximum number was added on the up-to-date sequence number of being stored.
9. communication processing apparatus according to claim 7,
Wherein, described communication processing apparatus also comprises the encryption control unit, be used to manage its value in the described sequence number parameter that is incremented of circulation time, and utilize described parameter to carry out the encryption control of data cell, and
Wherein, when the sequence number on the data cell that is attached to the communicator that is sent to described association reached 0, described Redundant Control unit was to the described parameter of described encryption control unit update notifications.
10. communication processing apparatus according to claim 9, wherein, when the encryption change was instructed to, described encryption control unit had been employed the sequence number of the data cell of described encryption change to the described Redundant Control unit of activity system unit notice.
11. communication processing apparatus according to claim 10,
Wherein, when described Redundant Control unit is used as the activity system unit, described Redundant Control unit will be sent to the back-up system unit from the sequence number of described encryption control unit notice, and
Wherein, when described Redundant Control unit was used as the back-up system unit, described Redundant Control unit received the sequence number of described transmission, and sequence number is notified to the described encryption control unit of back-up system unit.
12. the redundant configuration switching method of a redundant configuration system, described redundant configuration system has and is used for a series of data cells are sent to the activity system unit and the back-up system unit of related communicator with non-affirmation data transfer mode, and described redundant configuration switching method comprises:
First step, when having 0 respectively when being sent to described related communicator with half the data cell of sequence number of data cell maximum number, in the normal working time, with 0 and half sequence number of data cell maximum number be sent to described back-up system unit from described activity system unit;
Second step, the sequence number that storage sends from described activity system unit in described back-up system unit; And
Third step, in described back-up system unit, sequence number is advanced by half of data cell maximum number is added on the up-to-date sequence number of being stored, and when described back-up system unit had been switched to described activity system unit, the data cell that will have the described sequence number that is advanced sent to the communicator of described association.
13. redundant configuration switching method according to claim 12,
Wherein, described first step may further comprise the steps: when having 0 respectively when being sent to described related communicator with the data cell of the multiple of the 1/m of data cell maximum number, the normal working time with 0 and the sequence number of the multiple of the 1/m of data cell maximum number be sent to described back-up system unit, wherein m is equal to or greater than 3 positive integer, and
Wherein, described third step may further comprise the steps: when described back-up system unit had been switched to described activity system unit, the data cell that will have following sequence number sent to the communicator of described association: wherein the 1/m of data cell maximum number is added on the described up-to-date sequence number of storing in described back-up system unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005144813A JP4492435B2 (en) | 2005-05-18 | 2005-05-18 | Redundant configuration system, communication processing apparatus, and delivery unconfirmed connection switching method used therefor |
| JP2005144813 | 2005-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1866767A CN1866767A (en) | 2006-11-22 |
| CN100566195C true CN100566195C (en) | 2009-12-02 |
Family
ID=37425661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100813411A Expired - Fee Related CN100566195C (en) | 2005-05-18 | 2006-05-18 | Redundant configuration system, redundant configuration switching method and communication processing apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4492435B2 (en) |
| CN (1) | CN100566195C (en) |
| FR (1) | FR2886500B1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4645839B2 (en) * | 2006-01-18 | 2011-03-09 | 日本電気株式会社 | Security communication apparatus and sequence number management method |
| JP4963226B2 (en) * | 2006-12-15 | 2012-06-27 | 富士通株式会社 | Recovery method in wireless communication system and wireless network control device |
| JP2008199421A (en) * | 2007-02-14 | 2008-08-28 | Furukawa Electric Co Ltd:The | Encryption communication method and encryption communication system using redundant data repeater |
| CN101150866A (en) * | 2007-10-29 | 2008-03-26 | 华为技术有限公司 | Parameter synchronization method and device |
| US8457130B2 (en) * | 2011-05-02 | 2013-06-04 | Acme Packet, Inc. | Synchronizing sequence numbers |
| EP2555585B1 (en) * | 2011-08-01 | 2017-07-05 | Siemens Aktiengesellschaft | Power supply device for a jar heater and method for its operation |
| CN103970116A (en) * | 2013-01-30 | 2014-08-06 | 昆达电脑科技(昆山)有限公司 | Redundant system monitoring method |
| CN103425113A (en) * | 2013-08-14 | 2013-12-04 | 中山大学深圳研究院 | Parallel intelligent control terminal based on double processing units |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3301590B2 (en) * | 1997-04-25 | 2002-07-15 | 日本電信電話株式会社 | Protocol state synchronization system |
| JP3487806B2 (en) * | 2000-05-17 | 2004-01-19 | 日本電気株式会社 | Dual AAL1 device and synchronization method used therefor |
| JP3753100B2 (en) * | 2002-06-28 | 2006-03-08 | 日本電気株式会社 | System switching system and system switching method |
-
2005
- 2005-05-18 JP JP2005144813A patent/JP4492435B2/en not_active Expired - Fee Related
-
2006
- 2006-05-17 FR FR0651791A patent/FR2886500B1/en not_active Expired - Fee Related
- 2006-05-18 CN CNB2006100813411A patent/CN100566195C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR2886500B1 (en) | 2014-05-09 |
| JP2006324833A (en) | 2006-11-30 |
| JP4492435B2 (en) | 2010-06-30 |
| FR2886500A1 (en) | 2006-12-01 |
| CN1866767A (en) | 2006-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100566195C (en) | Redundant configuration system, redundant configuration switching method and communication processing apparatus | |
| EP1273199B1 (en) | Method and arrangement for maintaining synchronization in association with resetting a communication connection | |
| EP2496041B1 (en) | Methods for synchronizing PDCP operations after RRC connection re-establishment in a wireless communication system and related apparatuses thereof | |
| CA2906411C (en) | System for efficient recovery of node b buffered data following serving high speed downlink shared channel cell change | |
| US20030236085A1 (en) | Method for synchronizing a security start value in a wireless communications network | |
| US20030147370A1 (en) | Inter Node B serving HS-DSCH cell change mechanism in a high speed wireless communication system | |
| CN103314548A (en) | Enabling and disabling integrity protection for data radio bearers | |
| KR101399169B1 (en) | Method of providing telecommunications network security | |
| KR100548322B1 (en) | Failsafe rlc reset method for wireless communication system | |
| CN101116277A (en) | Method for requesting and transmitting status report of a mobile communication system and therefor apparatus | |
| CN100361481C (en) | Data transmission protocol | |
| JP5790818B2 (en) | Base station, mobile communication system, mobile communication device, and communication method | |
| EP3456146B1 (en) | Method and device for loss mitigation during device to device communication mode switching | |
| CN101001446A (en) | Switching method and system | |
| US20070291712A1 (en) | Mobile communication system and data retransmission control method | |
| GB2462699A (en) | Delivering PDCP SDUs to an upper layer within a receiving side entity of an E-UMTS | |
| EP2395694A2 (en) | Radio network controller and communication control method | |
| CN100370874C (en) | A method for solving configuration failure of radio resource control process | |
| EP1940095A2 (en) | System for efficient recovery of node B buffered data following serving high speed downlink shared channel cell change | |
| WO2020089519A1 (en) | User plane handling to enable a near oms cell change | |
| AU2008202107A1 (en) | System for efficient recovery of node B buffered data following serving high speed downlink shared channel cell change | |
| JP2004147203A (en) | Communication equipment with rlc function and method for switching rlc connection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20130518 |