CN101505492A - Remote control network element communication method and apparatus based on IMA control element - Google Patents
Remote control network element communication method and apparatus based on IMA control element Download PDFInfo
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- CN101505492A CN101505492A CNA2008100577013A CN200810057701A CN101505492A CN 101505492 A CN101505492 A CN 101505492A CN A2008100577013 A CNA2008100577013 A CN A2008100577013A CN 200810057701 A CN200810057701 A CN 200810057701A CN 101505492 A CN101505492 A CN 101505492A
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Abstract
The invention discloses a remote control network element communication method based on an IMA control cell, which relates to remote control network element communication technology, and aims to solve the problem that the remote control among network elements is unstable at present. The adopted technical proposal comprises the following steps that: a 51st byte of the IMA control cell is configured with control signaling, and the communication among the remote control network elements is performed based on the control signaling. The invention also discloses a device for realizing the method, which comprises a control signaling configuration unit and a communication unit, wherein the control signaling configuration unit is used for configuring the control signaling on the 51st byte of the IMA control cell; and the communication unit is used for communicating among the remote control network elements based on the control signaling. The method and the device have relatively low requirement on network maintenance, and a realized communication mode is flexible.
Description
Technical field
The present invention relates to Long-distance Control net element communication technology, relate to Long-distance Control net element communication method and apparatus or rather based on IMA control cell.
Background technology
At present, along with the progress of the communication technology, the type service that communication system provided is also more and more abundanter, so system is also more and more huger, and it is difficult that the maintenance work of system also becomes.For realizing that better communication system is provided with maintaining network more at present to the maintenance of system and based on the consideration of saving cost, to realize each core network element in the communication system being carried out remote maintenance, maintenances such as for example long-range control and management, auto upgrading.For important remote network element, even private network need be set safeguard.With the wireless communication system is example, between radio network controller (RNC) and the base station NB a lot of operation management maintains is just arranged, if RNC is out of control to NB, NB out of control just can not provide the user to insert again, and the user of its overlay area just can not carry out service access.The maintenance of Long-distance Control network element is very high to the dependence of existing network, if fault has appearred in network, all maintenance works can not be carried out naturally.For example, use asynchronous transfer mode (AsynchronousTransfer Mode, ATM) under the environment that the inverse multiplexing agreement communicates, communicating pair is only at lower floor's inverse multiplexing for atm (IMA) link activation, and after the upper strata link is successfully set up, could normally communicate.If this two walks out of existing problem, can't activate or upper strata link setup parameter error etc. as the IMA link, will cause the IMA communicating pair can't proper communication.
In the current 3G network, between RNC and NB during based on the Iub port communications, have only the IMA of lower floor link activation, IP-based ATM (IPOA) maintenance channel successfully to set up after, could realize remote monitoring to NB.If the IMA link between RNC and the NB can't activate as there being reasons such as line preface confusion or two ends parameter do not match (it is normal that the E1 of lower floor interface and transmission compile the Tc link) for some reason; Or the activation of IMA group, and because the relation of configuration parameter causes IPOA successfully to set up, then can cause Iub mouth link to connect normal and the obstructed situation of IPOA maintenance channel, make RNC lose the unique channel of monitoring NB, NB just is in not controlled fully state like this, can't operate as normal.For the situation that IPOA can't successfully set up, the attendant can't be by remote monitoring function to inquiring about and locating unusually.Current unique processing method can only be that handle at the last station of attendant.This maintenance work takes time and effort, and unusual locating speed is slow, and cost is quite high.In case the problems referred to above occur, suffer heavy losses.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of Long-distance Control net element communication method and apparatus based on IMA control cell, can carry out operations such as remote maintenance in the communication that realizes under the IPOA maintenance channel abnormal conditions between the Long-distance Control network element.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of Long-distance Control net element communication method based on IMA control cell comprises:
The 51 byte configuration of IMA control cell control signaling communicates based on described control signaling between the Long-distance Control network element.
Preferably, this method also comprises:
During communication, the 51 identical control signaling of byte carrying of IMA control cell of each link in the Long-distance Control network element IMA group.
Preferably, the control signaling that each link receives in the Long-distance Control network element IMA group is carried out and is related to the maximum control signaling of transmission link not simultaneously.
Preferably, described control signaling comprises command word.
Preferably, described control signaling also comprises parameter word, transmission direction directive.
Preferably, described control signaling is arbitrary signaling of non-01101010 word.
A kind of Long-distance Control net element communication device based on IMA control cell comprises:
Control signaling dispensing unit is used in the 51 byte configuration of IMA control cell control signaling; And
Communication unit is used for communicating between the Long-distance Control network element based on described control signaling.
Preferably, the 51 identical control signaling of byte configuration of IMA control cell of described control signaling dispensing unit each link in Long-distance Control network element IMA group.
Preferably, the control signaling that described communication unit receives each link in the Long-distance Control network element IMA group is carried out and is related to the maximum control signaling of transmission link not simultaneously.
Preferably, described control signaling comprises command word.
Preferably, described control signaling also comprises parameter word, transmission direction directive.
Preferably, described control signaling is arbitrary signaling of non-01101010 word.
Communication mode of the present invention is based on that IMA control cell carries out, and therefore under the situation that the IMA link can't activate or the upper strata link can't successfully be set up, also can realize the communication of remote network element, to communication network require relatively low.Can dispose the control signaling as required voluntarily, the communication mode of being realized is very flexible.Network configuration required for the present invention requires lower, and applicable scope is wider.
Description of drawings
Fig. 1 is the flow chart that the present invention is based on the Long-distance Control net element communication method of IMA control cell;
Fig. 2 is a kind of frame structure schematic diagram of controlling signaling of the present invention;
Fig. 3 is the Long-distance Control network element Signalling exchange flow chart that the present invention is based on IMA control cell;
Fig. 4 is the flow chart that the present invention is based on subordinate's Long-distance Control network element rejection signaling of IMA control cell;
Fig. 5 is the flow chart that higher level's Long-distance Control network element of the present invention is based on IMA control cell stops signaling;
Fig. 6 is the flow chart that the present invention is based on subordinate's Long-distance Control network element exceptional reset of IMA control cell;
Fig. 7 is the composition structural representation that the present invention is based on the Long-distance Control net element communication device of IMA control cell.
Embodiment
Core concept of the present invention is: at present based on IMA control cell (IMA Control Protocol cell, ICP) in the remote network element maintaining method, only after the IMA of lower floor link activation, IPOA maintenance channel are successfully set up, could realize attended operation to remote network element.At this present situation, communication between remote network element of the present invention is based on that IMA control cell carries out, therefore under the situation that the IMA link can't activate or the upper strata link can't successfully be set up, also can realize the communication of remote network element, to communication network require relatively low.Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated.
Fig. 1 is the flow chart that the present invention is based on the Long-distance Control net element communication method of IMA control cell, and as shown in Figure 1, the Long-distance Control net element communication method that the present invention is based on IMA control cell may further comprise the steps:
Step 101: in the 51 byte configuration of IMA control cell control signaling.Ima protocol is in the design of ICP, and for upper level applications has been reserved the space of 1 byte (byte), as a communication link (End-to-End Channel) end to end, it is positioned at the 51st byte of icp cell, as shown in Table 1:
| Eight bit byte | Label | Summary |
| 18 | |
Bits7-5：Transmit State Bits4-2：Receive State Bits1-0：Rx Defect Indicators |
| 19-49 | Link 1-31 Info | Status and control oflink with LID in the range1-31 |
| 50 | Unused | Set to0x6A as defined in ITU-T Recommendation I.432[30] for unused bytes. |
| 51 | End-to-end channel | Proprietarychannel(set to O if unused). |
Table one
Table one shows the part-structure of ICP, and wherein, the 51st byte of ICP is assigned 0x00 when not using.When upper layer software (applications) need be passed on some information by this passage, can add corresponding information at any time.The present invention utilizes the end-to-end channel territory in the ima protocol icp cell, an easy control communication port is provided for the IMA communicating pair, to realize the Long-distance Control between the communicating pair.As in the Iub port communications, the communication port of an emergency control NB can be provided to RNC, under the situation that IPOA can't successfully set up, NB is implemented remote monitoring, thereby locate more effectively and rapidly and deal with problems, significantly reduce maintenance workload.
Stipulate all in ATM agreement and the ima protocol that 0x6a (01101010) is the information content of filler cell, therefore, only otherwise use 0x6a get final product as the control signaling, the present invention does not limit the implementation of controlling signaling in the 51st byte.
As a kind of implementation, the 51st the control signaling that byte disposed comprises three data fields:
Signaling code territory: be mainly used to identify signaling type.Can comprise signaling: expiry feature flow process signaling: the indication local terminal is in initial condition; Various function signalings: the functional sequence that the indication opposite end will start; Refusal response signaling (Command-Reject): the indication local terminal signaling code territory of receiving can't be discerned, and perhaps can discern but function can't realize.
The sending direction territory: be used for identifying the sending direction of signaling, when solving the link loopback to the influence of communication protocol.This territory is an option, and is all inequality as all signaling codes that communicating pair sends when the code Design in signaling code territory can identify the attribute of sending direction, can not have this territory.
Data field: be used for carrying the required parameter of signaling.This territory is an option, when not needing to carry parameter, can not have this territory.
Need to prove,, generally after initialization, just be set up and help 0 because this passage is not used in complete 0 expression of the 51st byte of ima protocol regulation ICP.Therefore above-mentioned control signaling Ying Shen is with complete 0 signaling word.Can be used as the sign of expiry feature flow process signaling.
Fig. 2 is a kind of frame structure schematic diagram of controlling signaling of the present invention.As shown in Figure 2, based on the control signaling of aforesaid three data fields, code word and the function shared to each territory are elaborated.Wherein, it is bit7 that the sending direction territory accounts for 1 bit, is used for identifying the sending direction of this message, when solving the link loopback to the influence of communication protocol.For example 1 expression upper level network element mails to lower level network element; 0 expression lower level network element mails to upper level network element.It is bit6 to 3 that the signaling code territory accounts for 4 bit, is used for identifying signaling type.Can't discern when the recipient receives the signaling code territory among the icp cell End-to-End Channel, perhaps can discern but function when can't realize, will send a rejection signaling response message to the opposite end.Data field accounts for 3 bit, is used for carrying the signaling desired parameters, and the return parameters of response message.As carrying the signaling Reason For Denial in the response of signaling refusal.
About the control signaling example of upper level network element to lower level network element, can be referring to table two; Accordingly, lower level network element is to the control signaling example of upper level network element, can be referring to table three:
| The signaling code value | Signaling is explained |
| 0b0000 | Expiry feature flow process signaling.The indication local terminal is in initial condition, and local terminal has finished the functional sequence of all startups. |
| 0b0001 | The lower level network element that simply resets signaling.The indication lower level network element resets. |
| 0b0010 | The IMA self adaptation is reshuffled IMA group signaling.Indication lower level network element self adaptation is reshuffled the IMA group. |
| 0b0011 | Start crossed pair testing process signaling.The indication lower level network element detects unusually to crossed pair. |
| 0b0100 | Start loopback detection flow process signaling.The indication lower level network element detects unusually to loopback. |
| …… | …… |
| 0b1111 | Command-Reject |
Table two
| The signaling code value | Signaling is explained |
| 0b0000 | The response of expiry feature flow process.The indication local terminal is in initial condition: just start, or finished and comprise the functional sequence that restarts. |
| 0b0001 | Response " lower level network element simply resets " signaling.Signaling is down accepted in the response of " lower level network element simply resets " signaling that upper level network element is issued, expression. |
| 0b0010 | Response " the IMA self adaptation is reshuffled the IMA group " signaling.The response of " IMA self adaptation reshuffle IMA group " signaling that upper level network element is issued, signaling is down accepted in expression. |
| 0b0011 | Signaling that response " starts the crossed pair testing process ".The response of " start crossed pair testing process " signaling that upper level network element is issued, signaling is down accepted in expression. |
| 0b0100 | Signaling that response " starts the loopback detection flow process ".The response of " start loopback detection flow process " signaling that upper level network element is issued, signaling is down accepted in expression. |
| …… | …… |
| 0b1111 | Command-Reject |
| 0b1101 | Reserved |
Table three
Step 102: communicate based on described control signaling between the Long-distance Control network element.For improving communication reliability, the present invention can adopt interactive type communication.For simplifying the Signalling exchange flow process and saving the communication resource, the agreement upper level network element is in the master control status in Signalling exchange, and lower level network element is in passive controlled status, and promptly the state exchange of lower level network element side can only be triggered by upper level network element.Signaling under the upper level network element, lower level network element responds signaling, and upper level network element is received and could be determined that lower level network element received down signaling behind the response message of lower level network element.And from following signaling or report after the response, to next signaling or report before the response, keep among the End-to-End Channel content constant, so that local terminal present located state can be understood in the opposite end.For guaranteeing can normal process to various abnormal conditions, but the functional sequence that the regulation upper level network element starts is the flow process of self termination, promptly also can finish under the situation that does not have the lower level network element response.In addition, receive the accuracy of information, require two ends must be on certain bar link to receive identical information 10 times in the 20s continuously, just enter the handling process of corresponding information for guaranteeing communicating pair.Reliability conditions can be set according to concrete condition, as long as guarantee that communication is reliable.The same IMA group of upper level network element can only start a control signaling at every turn simultaneously, and what promptly the 51st byte of ICP on each link carried in same IMA group is same control signaling.And lower level network element is when multilink is received different signalings in IMA group, and recorder is to the bar number of the link of each signaling respectively, is signaling accurately with the maximum signaling of chain travel permit number.And
Below in conjunction with aforesaid control signaling table, the communication process based on aforementioned control signaling is described.
Fig. 3 is the Long-distance Control network element Signalling exchange flow chart that the present invention is based on IMA control cell, as shown in Figure 3, may further comprise the steps:
Upper level network element all is in initial condition with lower level network element: the two ends of communicating by letter are mutual in end-to-end Channel to be 0b00000000,0b00000bbb or 0b10000bbb, and the signaling territory is 0, and the sign two ends do not start any control signaling.Initial condition is a reset condition, and lower level network element resets or IMA drives and to be in this state after restarting.Under this state, lower level network element sends " response of expiry feature flow process " (0b00000ddd), is moving without any functional sequence on it, only accepts the command messages of upper level network element.
When monitoring lower level network element when being in initial condition, upper level network element is given an order.Enter " order issues state " then, wait for the command response message of lower level network element.
After lower level network element receives orders, can respond automatically corresponding " response message takes orders ", be accepted, handle, enter " function running status " with this order of notice upper level network element; Start timer then,,, then no longer handle if waiting time receives the same command again so that upper level network element can receive response message.Behind the timer expiry, carry out the control signaling of upper level network element, finish the action of upper level network element indication.
After upper level network element is received " response message takes orders ", just can determine that this order has issued successfully, enters " function running status ".At this moment start timer, start the functional sequence action,, then no longer handle, behind the timer expiry, start next step control flow if waiting time receives same response message again so that lower level network element can be finished.
Finish or abort function flow process midway when upper level network element, then issue " order of expiry feature flow process ".Enter " order state of termination ".
Lower level network element can stop all functional sequences after receiving " order of expiry feature flow process ", and responds " response of expiry feature flow process " to upper level network element, enters " initial condition ".
Timer expiry under the upper level network element " order state of termination " or receive " response of expiry feature flow process " after, enter " initial condition ".
Fig. 4 is the flow chart that the present invention is based on subordinate's Long-distance Control network element rejection signaling of IMA control cell, as shown in Figure 4, may further comprise the steps:
Upper level network element all is in initial condition with lower level network element: the two ends of communicating by letter are mutual in end-to-end Channel to be 0b00000000,0b00000bbb or 0b10000bbb, and the sign two ends do not start any functional sequence.
When monitoring lower level network element when not moving any functional sequence control signaling of upper level network element (do not have carry out), upper level network element is given an order.Enter " order issues state " then, wait for the command response message of lower level network element.
Lower level network element is because certain reason can not be carried out the order that upper level network element issues, as can't the recognition command word, current resource do not allow to carry out this order etc., can respond " refusal command response message " automatically (Command-Reject), can't carry out with this order of notice upper level network element.Directly enter " command reject (CMDR) state ".
After upper level network element is received " refusal command response message ", then issue " order of expiry feature flow process ", directly enter " order state of termination ".
After lower level network element is received " order of expiry feature flow process ", can stop current all functional sequences (current), and respond " response of expiry feature flow process " to upper level network element without any the functional sequence existence.Enter " initial condition " then.
Timer expiry under the upper level network element " order state of termination " or receive " response of expiry feature flow process " after, enter " initial condition ".
Fig. 5 is the flow chart that higher level's Long-distance Control network element of the present invention is based on IMA control cell stops signaling, as shown in Figure 5, may further comprise the steps:
Promptly carry out in the control signaling procedure of upper level network element in lower level network element function operation, upper level network element is because abnormal cause enters initial condition as resetting etc., and lower level network element should be able to all flow processs of adaptive termination, and enter initial condition.
In this case, upper level network element sends " order of expiry feature flow process " (0b10000ddd) automatically.
Lower level network element can stop current all functional sequences after receiving " order of expiry feature flow process ", and responds " response of expiry feature flow process " to upper level network element.Enter " initial condition " then.
Fig. 6 is the flow chart that the present invention is based on subordinate's Long-distance Control network element exceptional reset of IMA control cell, as shown in Figure 6, may further comprise the steps:
Upper level network element is in the function running status, the lower level network element exceptional reset.Because upper level network element sending same command function always, so lower level network element can accept command function once more and enter " function running status " after resetting, and the startup timer.
This moment, upper level network element had two kinds of situations: this lower level network element resets or restarts ima protocol is the operation that functional sequence needs, and upper level network element will be appreciated that the flow process that this time resets so.Finished and reset or restart (content among the End-to-End Channel that receives is 0b00000ddd) when upper level network element detects lower level network element like this, then issued " order of expiry feature flow process " immediately, directly entered " order state of termination ".This resets or restarts ima protocol is that abnormal cause causes, and lower level network element begins the functional sequence that upper level network element requires with normal flow once more so.Final the possibility of result is exactly the information deficiency (upper level network element expiry feature flow process) of collecting because of upper level network element, and causes the failure of a functional sequence, does not have other influence.This moment, lower level network element also had three kinds of situations: lower level network element is in time received the finish command, does not start the function corresponding flow process; What lower level network element started is terminable functional sequence, but after receiving the finish command, closes all functions flow process that local terminal has started, and reports " response of expiry feature flow process ", enters " initial condition " then; The functional sequence that lower level network element starts can't stop, as restarts action etc., and after lower level network element finished this flow process, upper level network element had entered order state of termination or initial condition, and lower level network element also can enter initial condition smoothly, and it is normal that end-state is recovered.
Timer expiry under the upper level network element " order state of termination " or receive " response of expiry feature flow process " after, enter " initial condition ".
As a kind of realization means, aforesaid communication mode is interactively, if do not consider reliability, the control signaling of upper level network element to lower level network element can only be set also, and the acquiescence lower level network element can be received signaling.After upper level network element sends control signaling, do not wait for the response message of lower level network element, one long period of fixed delay,, and start the corresponding function flow process so that lower level network element receives orders.After upper level network element is finished the local terminal functional sequence, promptly issue and stop order, and postpone a period of time,, finish the corresponding function flow process so that lower level network element is received this order.Be unidirectional communication between upper level network element and the lower level network element, under upper level network element control, upper level network element is not subjected to the influence of the unusual flow process of lower level network element to lower level network element fully.Change according to the flow process of acquiescence at the communication two ends.The minimizing of interaction flow and order makes whole agreement process simplification.This processing method can be used under the reasonable situation of communication quality.Owing to removed interaction flow, upper level network element just can't be known lower level network element present located state.When subordinate's network element appearance was unusual, upper level network element can't be known, still can move according to intended flow, and therefore this processing method can reduce greatly to the adaptive capacity of abnormal conditions.
Only being the example of communication mode of the present invention below, is not limitation of the present invention.Because ima protocol is supported what the IMA command word was transmitted simultaneously on all links, therefore communication mode robustness of the present invention is better.The control signaling is flexible, and the communication mode of support is many.The present invention is mutual based on simple process flow between the network element under the ima protocol communication mode applicable to the maintenance management between RNC and the NB and all.
Fig. 7 is the composition structural representation that the present invention is based on the Long-distance Control net element communication device of IMA control cell, as shown in Figure 7, the Long-distance Control net element communication device that the present invention is based on IMA control cell comprises: control signaling dispensing unit 70 and communication unit 71, wherein, control signaling dispensing unit 70 is used in the 51 byte configuration of IMA control cell control signaling.About the configuration mode of 70 pairs of ICP the 51st bytes of control signaling dispensing unit, can repeat no more here referring to Long-distance Control net element communication method description partly based on IMA control cell.Communication unit 71 is used for communicating between the Long-distance Control network element based on described control signaling.The communication mode of communication unit 71 can repeat no more here referring to aforementioned Long-distance Control net element communication method description partly based on IMA control cell.It is a variety of to it will be appreciated by those skilled in the art that communication mode based on communication signaling has, and the present invention does not limit concrete communication mode.
It will be appreciated by those skilled in the art that above-mentioned each unit can realize described function by corresponding software, also can realize by corresponding circuit.
Only being the example of communication mode of the present invention below, is not limitation of the present invention.Because ima protocol is supported what the IMA command word was transmitted simultaneously on all links, therefore communication mode robustness of the present invention is better.The control signaling is flexible, and the communication mode of support is many.The present invention is mutual based on simple process flow between the network element under the ima protocol communication mode applicable to the maintenance management between RNC and the NB and all.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (12)
1, a kind of Long-distance Control net element communication method based on IMA control cell is characterized in that this method comprises:
The 51 byte configuration of IMA control cell control signaling communicates based on described control signaling between the Long-distance Control network element.
2, method according to claim 1 is characterized in that, this method also comprises:
During communication, the 51 identical control signaling of byte carrying of IMA control cell of each link in the Long-distance Control network element IMA group.
3, method according to claim 1 is characterized in that, the control signaling that each link receives in the Long-distance Control network element IMA group is carried out and related to the maximum control signaling of transmission link not simultaneously.
4, method according to claim 1 is characterized in that, described control signaling comprises command word.
5, method according to claim 4 is characterized in that, described control signaling also comprises parameter word, transmission direction directive.
According to each described method in the claim 1 to 5, it is characterized in that 6, described control signaling is arbitrary signaling of non-01101010 word.
7, a kind of Long-distance Control net element communication device based on IMA control cell is characterized in that this device comprises:
Control signaling dispensing unit is used in the 51 byte configuration of IMA control cell control signaling; And
Communication unit is used for communicating between the Long-distance Control network element based on described control signaling.
8, device according to claim 7 is characterized in that, the 51 identical control signaling of byte configuration of IMA control cell of described control signaling dispensing unit each link in Long-distance Control network element IMA group.
9, device according to claim 7 is characterized in that, the control signaling that described communication unit receives each link in the Long-distance Control network element IMA group is carried out and related to the maximum control signaling of transmission link not simultaneously.
10, device according to claim 7 is characterized in that, described control signaling comprises command word.
11, device according to claim 10 is characterized in that, described control signaling also comprises parameter word, transmission direction directive.
According to each described device in the claim 7 to 10, it is characterized in that 12, described control signaling is arbitrary signaling of non-01101010 word.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109560A (en) * | 2012-09-07 | 2013-05-15 | 华为技术有限公司 | Fault recovery method of operation maintenance channel and network management terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109560A (en) * | 2012-09-07 | 2013-05-15 | 华为技术有限公司 | Fault recovery method of operation maintenance channel and network management terminal |
| CN103109560B (en) * | 2012-09-07 | 2016-09-28 | 华为技术有限公司 | The fault recovery method of a kind of OM channel and network management terminal |
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Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110402 |
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Effective date of registration: 20110402 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Applicant after: Inst of Telecommunication Science and Technolgoy Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: Datang Mobile Communication Equipment Co., Ltd. |
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Application publication date: 20090812 |