CN102752815A - Method, controller and system for transmitting logical link control protocol data unit - Google Patents
Method, controller and system for transmitting logical link control protocol data unit Download PDFInfo
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- CN102752815A CN102752815A CN2012102137334A CN201210213733A CN102752815A CN 102752815 A CN102752815 A CN 102752815A CN 2012102137334 A CN2012102137334 A CN 2012102137334A CN 201210213733 A CN201210213733 A CN 201210213733A CN 102752815 A CN102752815 A CN 102752815A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a method, a controller and a system for transmitting a logical link control protocol data unit, and belongs to the communication technical field. The method comprises the following steps that when a cross base station controller (BSC) cell is reselected, an original BSC to which a mobile station (MS) cross BSC cell belongs before reselecting acquires the logical link control protocol data unit (LLC PDU); and the original BSC sends a RAN (radio access network) information message carried in the acquired LLC PDU to a target BSC to which the MS cross BSC belongs after reselecting, so that the target BSC sends the LLC PDU to the MS after acquiring the LLC PDU according to the RAN information message. By means of carrying the LLC PDU by the RAN information message, when the cross BSC cell is reselected, the LLC PDU is transmitted to a new cell from an old cell; compared with the method of retransmitting the LLC PDU when a waiting application layer is overtime, the business interruption time of the cross BSC cell under a reselecting scene is reduced, and the service quality is further improved.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method, controller and system that transmits the logic link control protocol data cell.
Background technology
Along with the fast development of the communication technology, the kind of data service is more and more, GPRS (General Packet Radio Service, GPRS) as a kind of efficiently, wireless packet data service cheaply, its range of application is more and more wider.In present GPRS network; District reselecting has very big influence, particularly MS (Mobile Station, travelling carriage) striding BSC (Base Station Controller to the data transmission bauds of GPRS network; Base station controller) transfer of data under the district reselecting scene; How to transmit LLC (Logical Link Control, logic link control) PDU (Protocol Data Unit, protocol Data Unit) and become the key that influences the MS Packet Service.
In the transmission of striding the LLC PDU under the BSC district reselecting scene, what prior art adopted is the mode of waiting for the overtime re-transmission of application layer, through the overtime re-transmission of application layer LLC PDU to MS.
Because prior art is directed against MS in the transmission of striding the LLC PDU under the BSC district reselecting scene; Be merely the mode of waiting for the overtime re-transmission of application layer; And usually the overtime re-transmission time of application layer all very long, it is all very long break period therefore to stride under the BSC district reselecting scene Packet Service, influences service quality.
Summary of the invention
In view of this; The embodiment of the invention provides a kind of method, controller and system that transmits the logic link control protocol data cell; MS is striding under the BSC district reselecting scene with solution, and is longer through the overtime re-transmission of the application layer LLC PDU time, influences the problem of service quality.Said technical scheme is following:
On the one hand, a kind of method of transmitting the logic link control protocol data cell is provided, said method comprises:
When cross base station controller BSC district reselecting, affiliated former BSC obtained logic link control protocol data cell LLC PDU before mobile station MS was striden the BSC district reselecting;
The said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the wireless access network RAN informational message; After making said target BS C obtain said LLC PDU, said LLC PDU is sent to said MS according to said RAN informational message.
Wherein, the said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the wireless access network RAN informational message, specifically comprises:
The said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in first field in the original container of said RAN informational message, and is that system message is still carried LLC PDU message through the said RAN informational message of second field identification in the original container of said RAN informational message;
Wherein, the either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field.
Further, first field in the original container of said RAN informational message is specially: service identifiers/publicly-owned service identifiers SI/PSI field that the Network Assisted Cell Change NACC of said RAN informational message uses;
Second field in the original container of said RAN informational message is specially: the type the type field in the NACC container of said RAN informational message.
Alternatively, the said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the wireless access network RAN informational message, specifically comprises:
The said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the container of the new expansion of said RAN informational message, and the container of said new expansion is said LLC PDU special container.
On the other hand, a kind of base station controller is provided, said base station controller comprises:
Acquisition module is used for when cross base station controller BSC district reselecting, obtaining logic link control protocol data cell LLC PDU;
Sending module; The LLC PDU that is used for that said acquisition module is got access to is carried at wireless access network RAN informational message and sends to the target BS C of mobile station MS under striding after the BSC district reselecting; After making said target BS C obtain said LLC PDU, said LLC PDU is sent to said MS according to said RAN informational message.
Wherein, Said sending module; The LLC PDU that is used for that specifically said acquisition module is got access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in first field of original container of said RAN informational message, and is that system message is still carried LLC PDU message through the said RAN informational message of second field identification in the original container of said RAN informational message;
Wherein, the either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field.
Further; Said sending module; The LLC PDU that is used for that specifically said acquisition module is got access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the service identifiers/publicly-owned service identifiers SI/PSI field of the Network Assisted Cell Change NACC container of RAN informational message, and to identify said RAN informational message through the type the type field in the NACC container of said RAN informational message be that system message is still carried LLC PDU message.
Alternatively; Said sending module; The container that the LLC PDU that is used for that specifically said acquisition module is got access to is carried at the new expansion of said RAN informational message sends to the target BS C of said MS under striding after the BSC district reselecting, and the container of said new expansion is said LLC PDU special container.
On the one hand, a kind of method of transmitting the logic link control protocol data cell is provided also again, said method comprises:
When cross base station controller BSC district reselecting; Target BS C under mobile station MS is striden after the BSC district reselecting receives the wireless access network RAN informational message that the former BSC of said MS under striding before the BSC district reselecting sends, and has carried logic link control protocol data cell LLC PDU in the said RAN informational message;
Said target BS C obtains said LLC PDU according to said RAN informational message, and said LLC PDU is sent to said MS.
Wherein, Said LLC PDU specifically is carried in first field in the original container of said RAN informational message; And second field identification in the original container of said RAN informational message said RAN informational message be that system message is still carried LLC PDU message; Either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field;
Said target BS C obtains said LLC PDU according to said RAN informational message, specifically comprises:
Said target BS C resolves said RAN informational message, and judges that according to second field in the original container of the RAN informational message after resolving said RAN informational message is that system message is still carried LLC PDU message;
If judge said RAN informational message, then obtain the LLC PDU in first field in the original container of the RAN informational message after the parsing for carrying LLC PDU message.
Further, first field in the original container of said RAN informational message is specially: the service identifiers in the Network Assisted Cell Change NACC container of said RAN informational message/publicly-owned service identifiers SI/PSI field;
Second field in the original container of said RAN informational message is specially: the type the type field of the NACC container of said RAN informational message;
Saidly judge that according to second field in the original container of the RAN informational message after resolving said RAN informational message is that system message is still carried LLC PDU message, specifically comprises:
The type field according in the NACC container of the RAN informational message after resolving judges that said RAN informational message is that system message is still carried LLC PDU message;
LLC PDU in first field in the said original container that obtains the RAN informational message after the parsing specifically comprises:
Obtain the LLC PDU in the SI/PSI field in the NACC container of the RAN informational message after the parsing.
Alternatively, said LLC PDU specifically is carried in the container of the new expansion of said RAN informational message, and the container of said new expansion is said LLC PDU special container;
Said target BS C obtains said LLC PDU according to said RAN informational message, specifically comprises:
Said target BS C resolves said RAN informational message, and obtains LLC PDU the container of the new expansion of the RAN informational message after resolving.
Another aspect also provides a kind of base station controller, and said base station controller BSC comprises:
Receiver module; Be used for when cross base station controller BSC district reselecting; Receiving mobile MS strides the wireless access network RAN informational message that the preceding affiliated former BSC of BSC district reselecting sends, and has carried logic link control protocol data cell LLC PDU in the said RAN informational message;
Acquisition module, the RAN informational message that is used for receiving according to said receiver module is obtained said LLC PDU;
Sending module, the LLC PDU that is used for said acquisition module is got access to sends to said MS.
Wherein, Said LLC PDU specifically is carried in first field in the original container of the RAN informational message that said receiver module receives; And second field identification in the original container of said RAN informational message said RAN informational message be that system message is still carried LLC PDU message; Either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field;
Said acquisition module specifically comprises:
Resolution unit is used to resolve the RAN informational message that said receiver module receives;
Judging unit, second field of the original container of the RAN informational message after being used for resolving according to said resolution unit judges that said RAN informational message is that system message is still carried LLC PDU message;
First acquiring unit if be used for the said RAN informational message of said judgment unit judges for carrying LLC PDU message, then obtains the LLC PDU in first field in the original container of the RAN informational message after the parsing.
Further, first field in the original container of said RAN informational message is specially: the service identifiers in the Network Assisted Cell Change NACC container of said RAN informational message/publicly-owned service identifiers SI/PSI field;
Second field in the original container of said RAN informational message is specially: the type the type field of the NACC container of said RAN informational message;
Said judging unit, the type field of the NACC container of the RAN informational message after specifically being used for resolving according to said resolution unit judges that said RAN informational message is that system message is still carried LLC PDU message;
Said first acquiring unit if specifically be used for the said RAN informational message of said judgment unit judges for carrying LLC PDU message, then obtains the LLC PDU in the SI/PSI field in the NACC container of the RAN informational message after the parsing.
Alternatively, said LLC PDU specifically is carried in the container of the new expansion of said RAN informational message, and the container of said new expansion is said LLC PDU special container;
Said acquisition module specifically comprises:
Resolution unit is used to resolve the RAN informational message that said receiver module receives;
Second acquisition unit, the container of the new expansion of RAN informational message after being used for resolving from said resolution unit obtains LLC PDU.
A kind of system that transmits the logic link control protocol data cell also is provided, and said system comprises: the former BSC under MS strides before the BSC district reselecting and MS stride affiliated target BS C after the BSC district reselecting;
Wherein, the former BSC under said MS strides before the BSC district reselecting is above-mentioned first kind of BSC, and the target BS C under said MS strides after the BSC district reselecting is above-mentioned second kind of BSC.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is:
Through carry the mode of LLC PDU with the RAN informational message; When striding the BSC district reselecting, LLC PDU is delivered to new sub-district from old sub-district; Wait for the mode of the overtime re-transmission of application layer LLC PDU, can reduce and stride service outage duration under the BSC district reselecting scene, and then improve service quality.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram that transmits the logic link control protocol data cell that the embodiment of the invention one provides;
Fig. 2 is the method flow diagram that the another kind that provides of the embodiment of the invention one transmits the logic link control protocol data cell;
Fig. 3 is a kind of method flow diagram that transmits the logic link control protocol data cell that the embodiment of the invention two provides;
Fig. 4 is a kind of method flow diagram that transmits the logic link control protocol data cell that the embodiment of the invention two provides;
Fig. 5 is the structural representation of a kind of base station controller of providing of the embodiment of the invention three;
Fig. 6 is the structural representation of a kind of base station controller of providing of the embodiment of the invention four;
Fig. 7 is the structural representation of a kind of acquisition module of providing of the embodiment of the invention four;
Fig. 8 is the structural representation of the another kind of acquisition module that provides of the embodiment of the invention four;
Fig. 9 is a kind of system configuration sketch map that transmits the logic link control protocol data cell that the embodiment of the invention five provides.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
Embodiment one
Present embodiment provides a kind of method of transmitting the logic link control protocol data cell; This method causes reselecting Serving cell to MS because of factors such as shift in position, signal variations; And the affiliated BSC of BSC and Target cell is inequality under the former sub-district, promptly strides the transfer of data under the BSC district reselecting scene, has adopted the mode of carrying LLC PDU with the RAN informational message; Be implemented in when striding the BSC district reselecting, LLC PDU is by the transmission of old sub-district to new sub-district.At first, the former BSC under striding before the BSC district reselecting with MS be executive agent to implement this method be example, referring to Fig. 1, the method flow that present embodiment provides is specific as follows:
101: when striding the BSC district reselecting, affiliated former BSC obtained LLC PDU before MS strode the BSC district reselecting;
102: former BSC is carried at the LLC PDU that gets access to and sends to the target BS C of MS under striding after the BSC district reselecting in the RAN informational message, make target BS C obtain LLC PDU according to the RAN informational message after, LLC PDU is sent to MS.
Next, the target BS C under striding after the BSC district reselecting with MS be executive agent to implement this method be example, referring to Fig. 2, the method flow that present embodiment provides is specific as follows:
201: when striding the BSC district reselecting, affiliated target BS C reception MS strode the RAN informational message that the preceding affiliated former BSC of BSC district reselecting sends after MS strode the BSC district reselecting, had carried LLC PDU in this RAN informational message;
202: target BS C obtains LLC PDU according to the RAN informational message, and LLC PDU is sent to MS.
The method that present embodiment provides; Through carry the mode of LLC PDU with the RAN informational message; When striding the BSC district reselecting, LLC PDU is delivered to new sub-district from old sub-district; Wait for the mode of the overtime re-transmission of application layer LLC PDU, can reduce and stride service outage duration under the BSC district reselecting scene, and then improve service quality.
In order more clearly to set forth the method that the foregoing description provides, in conjunction with foregoing, be example with embodiment three with following embodiment two, the method for transmitting LLC PDU is at length explained, see following embodiment two and embodiment three for details:
Embodiment two
Present embodiment provides a kind of method of transmitting the logic link control protocol data cell; In conjunction with foregoing; BSC under present embodiment is striden before the BSC district reselecting with MS is former BSC; BSC under MS strides after the BSC district reselecting is an example for target BS C, and the transmission method of MS being striden LLC PDU under the BSC district reselecting scene is illustrated.Referring to Fig. 3, the method flow that present embodiment provides is specific as follows:
301: when striding the BSC district reselecting, former BSC obtains LLC PDU;
To this step; Existing GPRS (General Packet Radio Service; General packet radio service) in the technology, SGSN (Serving GPRS Support Node, GPRS serving GPRS support node) will send LLC PDU to former BSC; Then when striding the BSC district reselecting, former BSC obtains LLC PDU from SGSN.In addition, can also select other obtain manners, present embodiment does not limit the mode that former BSC obtains LLC PDU.
302: former BSC is carried at the LLC PDU that gets access in first field in the original container of RAN informational message and sends to target BS C, and through this RAN informational message of second field identification in the original container of RAN informational message for carrying LLC PDU message;
Wherein, In RAN information management agreement; The realization of different application is accomplished through definition proper container (Container); The application of agreement support at present includes but not limited to NACC (Network Assisted Cell Change, Network Assisted Cell Change) and MBMS (Multimedia Broadcast Multicast Service, multimedia broadcast multi-broadcasting business) etc.; It is example that present embodiment is used corresponding container with NACC, and the content encoding reference format in the NACC container of RAN informational message is shown in following table 1:
Table 1
In the table 1, IEI (Information Element Identifier, information element sign): this field is used to identify the container which application is this RAN informational message be specially, and to present embodiment, is applied as example with NACC and describes.
Length Indicator (length indicator): this field is used for the length of indication information.
Reporting Cell Identifier (reporting cell sign): this field is as the value of the cell identity information element that defines in the standard.
Number of SI (Service Identify, service identifiers)/PSI (Public Service Identify, publicly-owned service identifiers) (numbering of SI/PSI): this field is used for indicating the number of (grouping) system message.Perhaps, this number is 0.System message has a plurality of instances, and each instance can be regarded as a SI/PSI message.Wherein, NACC supports at most to carry 128 system message instances, for example; Each instance size of BCCH (Broadcast Control Channel, BCCH) is 21 bytes, PBCCH (Packet Broadcast Control Channel; Packet Broadcast Control CHannel) each instance size is 22 bytes; Therefore, the maximum number of byte that reality can be carried is 2688 bytes or 2816 bytes, all greater than LLC PDU maximum length.The coding of this part can be shown in following table 2:
Table 2
| Coding | Semantic |
| 0000000 | 0"SI/PSI"fol?lows |
| 0000001 | 1"SI/PSI"fol?low |
| ?…… | …… |
| 1111111 | 127"SI/PSI"follow |
SI/PSI: this field has comprised reporting cell efficient system message or grouping system message.
Type (type): the SI/PSI type of info that this field indication Reporting Cell (reporting cell) provides, the value of the type are 0 or 1,0 or 1 to identify different implications respectively, specifically can be shown in following table 3:
Table 3
| Coding | Semantic |
| 0 | Representing this RAN informational message is system message |
| 1 | Representing this RAN informational message is grouping system message |
If the type field indication " SI messages as specified for BCCH (3GPP TS 44.018) follow "; Then the SI/PSI field has comprised the system message instance for the BCCH coding; Each system message has comprised all IE that form message payload after the Message Type byte, and each message is 21 byte lengths.
If the type field indication " PSI messages as specified for PBCCH (3GPP TS 44.060) follow "; Then the SI/PSI field has comprised the grouping system message instance for the PBCCH coding; Each grouping system message has comprised all the elements after the MESSAGE_TYPE byte, and each message is 22 byte lengths.
Content format and above-mentioned explaining in conjunction with the NACC container of the RAN informational message shown in the above-mentioned table 1 to each field; Former BSC in this step is carried at LLC PDU when sending to target BS C in first field of original container of RAN informational message; This first field can be the either field in the original container of RAN informational message; Present embodiment does not limit specifically which field LLCPDU being carried at; Only be example, be about to send to target BS C in the SI/PSI field that LLC PDU is carried at the NACC container to use the SI/PSI field to transmit LLC PDU.
In addition; In order to distinguish being real system message or carrying LLC PDU message of carrying in the RAN informational message; It is the mode that system message is still carried LLC PDU message that this step has also been taked through this RAN informational message of second field identification in the original container of RAN informational message; Other either fields in the original container that this second field is the RAN informational message except that first field, present embodiment are to being not that system message is still carried LLC PDU message and limited through which field identification RAN informational message specifically.Only divide into example with the type field in the Container coding for NACC cell that uses the definition of RAN informational message, promptly to use the type field to distinguish the RAN informational message be system message or carry LLC PDU message.During practical implementation, because the Type value is that 1 situation seldom is employed in the former protocols having, thereby the method that present embodiment provides is deleted it from agreement; Can reuse afterwards; Promptly when transmitting LLC PDU, the type field is set to 1, that is to say; The Type value is that to identify this RAN informational message at 0 o'clock be system message, and the Type value is to identify this RAN informational message for carrying LLC PDU message at 1 o'clock.
In addition; During can adopting with prior art, sends former BSC the mode of RAN informational message when target BS C sends the RAN informational message; Some changes the more existing RAN informational message of content of the RAN informational message of just sending; Or being directed against the new send mode of method employing that present embodiment provides, present embodiment does not limit to the mode that target BS C sends the RAN informational message former BSC.
303: target BS C receives the RAN informational message of having carried LLC PDU, obtains LLC PDU according to this RAN informational message, and LLC PDU is sent to MS.
To this step, after target BS C receives the RAN informational message of having carried LLC PDU that former BSC sends, obtain the mode of LLC PDU according to this RAN informational message about target BS C, present embodiment is not done concrete qualification.Because the type field in this RAN informational message can identify this message for carrying LLC PDU message; Therefore; After target BS C resolves the RAN informational message that receives, through judging that according to the type field in the NACC container of the RAN informational message after resolving the RAN informational message is that system message is still carried LLC PDU message.It is example for carrying LLC PDU message that this embodiment judges this RAN informational message with target BS C; Then target BS C obtains the LLC PDU in the SI/PSI field in the NACC container of the RAN informational message after the parsing; Can send it to MS afterwards, so that MS carries out Packet Service according to LLC PDU.LLC PDU information is sent to the mode of MS about target BS C; After the overtime re-transmission of application layer LLC PDU in the prior art; Target BS C also can send to MS with LLC PDU, and therefore, target BS C can adopt existing send mode with the mode that LLC PDU information sends to MS in this step; Can adopt other send modes to the method that present embodiment provides, present embodiment is not done concrete qualification to this yet.
The method that present embodiment provides; Carry the mode of LLC PDU through the RAN informational message; When striding the BSC district reselecting, LLC PDU is delivered to new sub-district from old sub-district; Wait for the mode of the overtime re-transmission of application layer LLC PDU, can reduce and stride service outage duration under the BSC district reselecting scene, and then improve service quality.
Embodiment three
Present embodiment provides a kind of method of transmitting the logic link control protocol data cell; In conjunction with foregoing; BSC under present embodiment is striden before the BSC district reselecting with MS is former BSC; BSC under MS strides after the BSC district reselecting is an example for target BS C, and the method for transmitting LLC PDU is illustrated.Referring to Fig. 4, the method flow that present embodiment provides is specific as follows:
401: when striding the BSC district reselecting, former BSC obtains LLC PDU;
The concrete implementation of this step can repeat no more referring to the associated description of step 301 in the foregoing description two here.
402: former BSC is carried at the LLC PDU that gets access in the new container of expanding of RAN informational message and sends to target BS C;
To this step; For LLC PDU is sent to target BS C; The method that present embodiment provides has been taked under the prerequisite of not changing the corresponding Container Format of original application; In the RAN informational message, add the container of new expansion, the container of this new expansion as LLC PDU special container, is carried LLC PDU with the container through this new expansion.During practical implementation, present embodiment does not limit the container of new expansion in the RAN informational message, only is depicted as example with the content table 4 specific as follows in the container of the new expansion of RAN informational message and describes.
Table 4
Above in the table 4; Owing to should the new container of expanding be the container that carries LLC PDU that is exclusively used in that expands in original RAN informational message; Thereby the IEI in the table 4 is used to identify this RAN informational message and is specially the pairing container of the application of carrying LLC PDU; Effect can be equal to the effect of the type field in the foregoing description two, that is to say, the application that this kind carries LLC PDU can identify through IEI; Thereby target BS C can judge this message through this IEI and add LLC PDU after subsequent step receives this RAN informational message.The same with the implication in the table 1 for Length Indicator with Reporting Cell Identifier, still be respectively applied for as length indicator and reporting cell sign.LLC PDU field in the table 4 then is used to carry LLC PDU, realizes the transmission of LLC PDU thus through MS RAN informational message shown in the transition table 4 when striding the BSC district reselecting.
In addition; Former BSC is carried at the mode that sends to target BS C in the new container of expanding of RAN informational message with the LLC PDU that gets access to and can adopts with the mode of sending the RAN informational message in the prior art; Some changes the more existing RAN informational message of content of the RAN informational message of just sending; Or being directed against the new send mode of method employing that present embodiment provides, present embodiment is not carried at the mode that sends to target BS C in the new container of expanding of RAN informational message to former BSC with the LLC PDU that gets access to and limits.
403: target BS C receives the RAN informational message of having carried LLC PDU, obtains LLC PDU according to this RAN informational message, and LLC PDU is sent to MS.
To this step, after target BS C receives the RAN informational message of having carried LLC PDU that former BSC sends, obtain the mode of LLC PDU according to this RAN informational message about target BS C, present embodiment is not done concrete qualification.Owing to carried LLC PDU in the container of the new expansion of this RAN informational message; Therefore; After target BS C resolves the RAN informational message receive, can confirm that through reading this RAN informational message carried LLC PDU after the IEI field, thereby can in the LLC PDU field the container of the new expansion of the RAN informational message after resolving, obtain LLC PDU; And this LLC PDU information sent to MS, so that MS carries out Packet Service according to LLC PDU.LLC PDU information is sent to the mode of MS about target BS C; After the overtime re-transmission of application layer LLC PDU in the prior art; Target BS C also can send to MS with LLC PDU, and therefore, target BS C can adopt existing send mode with the mode that LLC PDU information sends to MS in this step; Can adopt other send modes to the method that present embodiment provides, present embodiment is not done concrete qualification to this yet.
The method that present embodiment provides; Carry the mode of LLC PDU through the RAN informational message; When striding the BSC district reselecting, LLC PDU is delivered to new sub-district from old sub-district; Wait for the mode of the overtime re-transmission of application layer LLC PDU, can reduce and stride service outage duration under the BSC district reselecting scene, and then improve service quality.
Embodiment four
Present embodiment provides a kind of base station controller, and this base station controller is used for carrying out the BSC performed function of the foregoing description one to embodiment three MS under striding before the BSC district reselecting, and referring to Fig. 5, this base station controller comprises:
Sending module 52, the LLC PDU that is used for that acquisition module 51 is got access to are carried at the RAN informational message and send to the target BS C of MS under striding after the BSC district reselecting, make target BS C obtain LLC PDU according to the RAN informational message after, LLC PDU is sent to MS.
Description in conjunction with step 302 in the foregoing description two; This sending module 52; The LLC PDU that is used for that specifically acquisition module 51 is got access to is carried at and sends to the target BS C of MS under striding after the BSC district reselecting in first field of original container of RAN informational message, and is that system message is still carried LLC PDU message through the second field identification RAN informational message in the original container of RAN informational message;
Wherein, first field is the either field in the original container of RAN informational message, and second field is other either fields except that first field in the original container of RAN informational message.
Further; Sending module 52; The LLC PDU that is used for that specifically acquisition module 51 is got access to is carried at and sends to the target BS C of MS under striding after the BSC district reselecting in the SI/PSI field of NACC container of RAN informational message, and is that system message is still carried LLC PDU message through the sign of the type field in the NACC container of RAN informational message RAN informational message.
Wherein, the RAN informational message is carried the mode of LLC PDU and is that system message still is the associated description that the mode of LLC PDU message all can see step 302 in the foregoing description two for details through the type field sign RAN informational message, repeats no more here.
Alternatively; Description in conjunction with step 402 in the foregoing description three; Sending module 52; The container that the LLC PDU that is used for that specifically acquisition module 51 is got access to is carried at the new expansion of RAN informational message sends to the target BS C of MS under striding after the BSC district reselecting, and the container of new expansion is a LLC PDU special container.
The base station controller that present embodiment provides; Carry the mode of LLC PDU through the RAN informational message; When striding the BSC district reselecting, LLC PDU is delivered to new sub-district from old sub-district; Wait for the mode of the overtime re-transmission of application layer LLC PDU, can reduce and stride service outage duration under the BSC district reselecting scene, and then improve service quality.
Embodiment five
Present embodiment provides a kind of base station controller, and this base station controller is used for carrying out the BSC performed function of the foregoing description one to embodiment three MS under striding after the BSC district reselecting, and referring to Fig. 6, this base station controller comprises:
Receiver module 61 is used for when striding the BSC district reselecting, receives MS and strides the RAN informational message that the preceding affiliated former BSC of BSC district reselecting sends, and has carried LLC PDU in this RAN informational message;
Acquisition module 62, the RAN informational message that is used for receiving according to receiver module 61 is obtained LLC PDU;
Sending module 63, the LLC PDU that is used for acquisition module 62 is got access to sends to MS.
Wherein, the mode that receiver module 61 receives the RAN informational messages sees the description of step 403 in the step 303 and the foregoing description three in the foregoing description two for details, repeats no more here.The mode that mode and the sending module 63 that acquisition module 62 obtains LLC PDU sends to MS with LLC PDU all sees the associated description of step 403 in step 303 in the foregoing description two and the foregoing description three for details, repeats no more here.
Wherein, LLC PDU specifically is carried in first field in the original container of the RAN informational message that receiver module receives; And second field identification in the original container of RAN informational message the RAN informational message be that system message is still carried LLC PDU message; First field is the either field in the original container of RAN informational message, and second field is other either fields except that first field in the original container of RAN informational message;
Referring to Fig. 7, this acquisition module 62 specifically comprises:
Judging unit 622, second field of the original container of the RAN informational message after being used for resolving according to resolution unit 621 judges that the RAN informational message is that system message is still carried LLC PDU message;
First acquiring unit 623 is judged the RAN informational messages for carrying LLC PDU message if be used for judging unit 622, then obtains the interior LLC PDU of first field in the original container of the RAN informational message after the parsing.
Further, first field in the original container of RAN informational message is specially: the service identifiers in the Network Assisted Cell Change NACC container of RAN informational message/publicly-owned service identifiers SI/PSI field;
Second field in the original container of RAN informational message is specially: the type the type field of the NACC container of RAN informational message;
Judging unit 622, the type field of the NACC container of the RAN informational message after specifically being used for resolving according to resolution unit 621 judges that the RAN informational message is that system message is still carried LLC PDU message;
First acquiring unit 723 is judged the RAN informational messages for carrying LLC PDU message if specifically be used for judging unit 722, then obtains the interior LLC PDU of SI/PSI field in the NACC container of the RAN informational message after the parsing.
Alternatively, LLC PDU specifically is carried in the container of the new expansion of RAN informational message, and the container of new expansion is a LLC PDU special container;
Referring to Fig. 8, this acquisition module 62 specifically comprises:
Second acquisition unit 624, the container of the new expansion of RAN informational message after being used for resolving from resolution unit 621 obtains LLCPDU.
The base station controller that present embodiment provides; Carry the mode of LLC PDU through the RAN informational message; When striding the BSC district reselecting, LLC PDU is delivered to new sub-district from old sub-district; Wait for the mode of the overtime re-transmission of application layer LLC PDU, can reduce and stride service outage duration under the BSC district reselecting scene, and then improve service quality.
Embodiment six
Present embodiment provides a kind of system that transmits the logic link control protocol data cell, and referring to Fig. 9, this system comprises:
Wherein, MS strides the BSC that the preceding affiliated former BSC 91 of BSC district reselecting provides like above-mentioned embodiment four;
The BSC that target BS C 92 under MS strides after the BSC district reselecting as above-mentioned embodiment five provide.
The system that present embodiment provides; Carry the mode of LLC PDU through the RAN informational message; When striding the BSC district reselecting, LLC PDU is delivered to new sub-district from old sub-district; Wait for the mode of the overtime re-transmission of application layer LLC PDU, can reduce and stride service outage duration under the BSC district reselecting scene, and then improve service quality.
Need to prove: the base station controller that the foregoing description provides is when transmitting LLC PDU; Only the division with above-mentioned each functional module is illustrated; In the practical application; Can as required above-mentioned functions be distributed by the different functional completion, the internal structure that is about to controller is divided into different functional, to accomplish all or part of function of above description.In addition; The method embodiment of the base station controller that the foregoing description provides, the system that transmits the logic link control protocol data cell and transmission logic link control protocol data cell belongs to same design; Its concrete implementation procedure sees method embodiment for details, repeats no more here.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
The all or part of step that one of ordinary skill in the art will appreciate that realization the foregoing description can be accomplished through hardware; Also can instruct relevant hardware to accomplish through program; Described program can be stored in a kind of computer-readable recording medium; The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. a method of transmitting the logic link control protocol data cell is characterized in that, said method comprises:
When cross base station controller BSC district reselecting, affiliated former BSC obtained logic link control protocol data cell LLC PDU before mobile station MS was striden the BSC district reselecting;
The said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the wireless access network RAN informational message; After making said target BS C obtain said LLC PDU, said LLC PDU is sent to said MS according to said RAN informational message.
2. method according to claim 1 is characterized in that, the said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the wireless access network RAN informational message, specifically comprises:
The said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in first field in the original container of said RAN informational message, and is that system message is still carried LLC PDU message through the said RAN informational message of second field identification in the original container of said RAN informational message;
Wherein, the either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field.
3. method according to claim 2; It is characterized in that; First field in the original container of said RAN informational message is specially: the service identifiers in the Network Assisted Cell Change NACC container of said RAN informational message/publicly-owned service identifiers SI/PSI field;
Second field in the original container of said RAN informational message is specially: the type the type field in the NACC container of said RAN informational message.
4. method according to claim 1 is characterized in that, the said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the wireless access network RAN informational message, specifically comprises:
The said LLC PDU that said former BSC will get access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the container of the new expansion of said RAN informational message, and the container of said new expansion is said LLC PDU special container.
5. a base station controller is characterized in that, said base station controller comprises:
Acquisition module is used for when cross base station controller BSC district reselecting, obtaining logic link control protocol data cell LLCPDU;
Sending module; The LLC PDU that is used for that said acquisition module is got access to is carried at wireless access network RAN informational message and sends to the target BS C of mobile station MS under striding after the BSC district reselecting; After making said target BS C obtain said LLC PDU, said LLC PDU is sent to said MS according to said RAN informational message.
6. base station controller according to claim 5; It is characterized in that; Said sending module; The LLC PDU that is used for that specifically said acquisition module is got access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in first field of original container of said RAN informational message, and is that system message is still carried LLC PDU message through the said RAN informational message of second field identification in the original container of said RAN informational message;
Wherein, the either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field.
7. base station controller according to claim 6; It is characterized in that; Said sending module; The LLC PDU that is used for that specifically said acquisition module is got access to is carried at and sends to the target BS C of said MS under striding after the BSC district reselecting in the service identifiers/publicly-owned service identifiers SI/PSI field of the Network Assisted Cell Change NACC container of RAN informational message, and to identify said RAN informational message through the type the type field in the NACC container of said RAN informational message be that system message is still carried LLCPDU message.
8. base station controller according to claim 5; It is characterized in that; Said sending module; The container that the LLC PDU that is used for that specifically said acquisition module is got access to is carried at the new expansion of said RAN informational message sends to the target BS C of said MS under striding after the BSC district reselecting, and the container of said new expansion is said LLC PDU special container.
9. a method of transmitting the logic link control protocol data cell is characterized in that, said method comprises:
When cross base station controller BSC district reselecting; Target BS C under mobile station MS is striden after the BSC district reselecting receives the wireless access network RAN informational message that the former BSC of said MS under striding before the BSC district reselecting sends, and has carried logic link control protocol data cell LLC PDU in the said RAN informational message;
Said target BS C obtains said LLC PDU according to said RAN informational message, and said LLC PDU is sent to said MS.
10. method according to claim 9; It is characterized in that; Said LLC PDU specifically is carried in first field in the original container of said RAN informational message; And second field identification in the original container of said RAN informational message said RAN informational message be that system message is still carried LLC PDU message; Either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field;
Said target BS C obtains said LLC PDU according to said RAN informational message, specifically comprises:
Said target BS C resolves said RAN informational message, and judges that according to second field in the original container of the RAN informational message after resolving said RAN informational message is that system message is still carried LLC PDU message;
If judge said RAN informational message, then obtain the LLC PDU in first field in the original container of the RAN informational message after the parsing for carrying LLC PDU message.
11. method according to claim 10; It is characterized in that; First field in the original container of said RAN informational message is specially: the service identifiers in the Network Assisted Cell Change NACC container of said RAN informational message/publicly-owned service identifiers SI/PSI field;
Second field in the original container of said RAN informational message is specially: the type the type field of the NACC container of said RAN informational message;
Saidly judge that according to second field in the original container of the RAN informational message after resolving said RAN informational message is that system message is still carried LLC PDU message, specifically comprises:
The type field according in the NACC container of the RAN informational message after resolving judges that said RAN informational message is that system message is still carried LLC PDU message;
LLC PDU in first field in the said original container that obtains the RAN informational message after the parsing specifically comprises:
Obtain the LLC PDU in the SI/PSI field in the NACC container of the RAN informational message after the parsing.
12. method according to claim 9 is characterized in that, said LLC PDU specifically is carried in the container of the new expansion of said RAN informational message, and the container of said new expansion is said LLC PDU special container;
Said target BS C obtains said LLC PDU according to said RAN informational message, specifically comprises:
Said target BS C resolves said RAN informational message, and obtains LLC PDU the container of the new expansion of the RAN informational message after resolving.
13. a base station controller is characterized in that, said base station controller BSC comprises:
Receiver module is used for when striding the BSC district reselecting, and receiving mobile MS strides the wireless access network RAN informational message that the preceding affiliated former BSC of BSC district reselecting sends, and has carried logic link control protocol data cell LLC PDU in the said RAN informational message;
Acquisition module, the RAN informational message that is used for receiving according to said receiver module is obtained said LLC PDU;
Sending module, the LLC PDU that is used for said acquisition module is got access to sends to said MS.
14. base station controller according to claim 13; It is characterized in that; Said LLC PDU specifically is carried in first field in the original container of the RAN informational message that said receiver module receives; And second field identification in the original container of said RAN informational message said RAN informational message be that system message is still carried LLC PDU message; Either field in the original container that said first field is said RAN informational message, other either fields in the original container that said second field is said RAN informational message except that said first field;
Said acquisition module specifically comprises:
Resolution unit is used to resolve the RAN informational message that said receiver module receives;
Judging unit, second field of the original container of the RAN informational message after being used for resolving according to said resolution unit judges that said RAN informational message is that system message is still carried LLC PDU message;
First acquiring unit if be used for the said RAN informational message of said judgment unit judges for carrying LLC PDU message, then obtains the LLC PDU in first field in the original container of the RAN informational message after the parsing.
15. base station controller according to claim 14; It is characterized in that; First field in the original container of said RAN informational message is specially: the service identifiers in the Network Assisted Cell Change NACC container of said RAN informational message/publicly-owned service identifiers SI/PSI field;
Second field in the original container of said RAN informational message is specially: the type the type field of the NACC container of said RAN informational message;
Said judging unit, the type field of the NACC container of the RAN informational message after specifically being used for resolving according to said resolution unit judges that said RAN informational message is that system message is still carried LLC PDU message;
Said first acquiring unit if specifically be used for the said RAN informational message of said judgment unit judges for carrying LLC PDU message, then obtains the LLC PDU in the SI/PSI field in the NACC container of the RAN informational message after the parsing.
16. base station controller according to claim 13 is characterized in that, said LLC PDU specifically is carried in the container of the new expansion of said RAN informational message, and the container of said new expansion is said LLC PDU special container;
Said acquisition module specifically comprises:
Resolution unit is used to resolve the RAN informational message that said receiver module receives;
Second acquisition unit, the container of the new expansion of RAN informational message after being used for resolving from said resolution unit obtains LLC PDU.
17. a system that transmits the logic link control protocol data cell is characterized in that, said system comprises: the former BSC under before the mobile station MS cross base station controller BSC district reselecting and MS stride affiliated target BS C after the BSC district reselecting;
Wherein, said MS strides the described BSC of arbitrary claim in preceding affiliated former BSC of BSC district reselecting such as the said claim 5 to 8;
The described BSC of arbitrary claim in target BS C under said MS strides after the BSC district reselecting such as the said claim 13 to 16.
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| CN201210213733.4A CN102752815B (en) | 2012-06-26 | 2012-06-26 | Transmit the method for logic link control protocol data cell, controller and system |
| PCT/CN2013/078024 WO2014000648A1 (en) | 2012-06-26 | 2013-06-26 | Method, controller and system for transferring logical link control protocol data unit |
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| WO2014000648A1 (en) * | 2012-06-26 | 2014-01-03 | 华为技术有限公司 | Method, controller and system for transferring logical link control protocol data unit |
| CN106341368A (en) * | 2015-07-06 | 2017-01-18 | 中兴通讯股份有限公司 | Data processing method and device |
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| KR20080071733A (en) * | 2007-01-31 | 2008-08-05 | 삼성전자주식회사 | Method for switching cell in mobile communication system |
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| CN102752815B (en) * | 2012-06-26 | 2015-12-16 | 华为技术有限公司 | Transmit the method for logic link control protocol data cell, controller and system |
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| CN101146339A (en) * | 2006-09-11 | 2008-03-19 | 华为技术有限公司 | SGSN-spanning switching method and mobile communication network |
| CN101420732A (en) * | 2008-11-28 | 2009-04-29 | 中兴通讯股份有限公司 | Soft switching method and system for cross base station controller, target base station controller |
| CN102098654A (en) * | 2009-12-09 | 2011-06-15 | 中兴通讯股份有限公司 | Method, device and system for controlling local switch |
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