CN102377803A

CN102377803A - Data processing method, device and system

Info

Publication number: CN102377803A
Application number: CN2010102578215A
Authority: CN
Inventors: 李龠; 马洁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-08-12
Filing date: 2010-08-12
Publication date: 2012-03-14
Anticipated expiration: 2030-08-12
Also published as: WO2011137783A1; CN102377803B

Abstract

The embodiment of the invention discloses a data processing method, a data processing device and a data processing system. The method provided by the invention comprises the following steps of: acquiring grouping information, wherein the grouping information comprises a group identifier, a sequence number of a machine terminal in a group and the position of a public radio bearer configuration parameter corresponding to the group in a broadcast message; and determining a public radio bearer in which the group with the grouping information is according to the grouping information, generating a media access control protocol data unit (MAC PDU) and a radio link control (RLC) PDU when network accessing is required, and transmitting the MAC PDU and the RLC PDU to a public user plane entity by the public radio bearer. By the scheme, packet header overhead can be saved, thereby reducing processing complexity and improving transmission efficiency.

Description

A kind of data processing method, device and system

Technical field

The present invention relates to communication technical field, be specifically related to a kind of data processing method, device and system.

Background technology

Internet of Things refers to all article through information sensing equipment and Internet connection, realizes intelligent identification and management.Machine (M2M; Machine to Machine) communication is from a kind of deciphering of communication angle to Internet of Things; It provide real time data between the system, between the remote equipment and and the individual between the convenient method that connects, can greatly realize operation flow automation and intellectuality.

Widespread deployment along with the M2M application; It is huge that the number of users of these application also becomes rapidly; Because the data volume that communication (MTC, Machine Type Communication) the equipment single of Internet of Things type sends is less relatively, even the packet header expense (overhead) that adds up less than each layer; So from the angle of integral body, the user plane efficiency of transmission is extremely low.Except each layer protocol data cell (PDU; ProtocolData Unit) outside the packet header expense; Resident's Access Network under the current mechanism (RAN, Residential Access Network) also need be set up corresponding radio link control layer (RLC, Radio Link control) entity for each machine terminal (MTC devices); Because the MTC number of devices is huge, can requirements at the higher level be proposed to the disposal ability of RAN so safeguard so many RLC entity.

In research and practice process to prior art, inventor of the present invention finds that data amount transmitted is little and fixing for having; The M2M of characteristics such as machine terminal huge amount uses; The needs of prior art consume more Internet resources, and efficiency of transmission is lower, handle comparatively complicated.

Summary of the invention

The embodiment of the invention provides a kind of data processing method, device and system, can save Internet resources, improves efficiency of transmission and reduces processing complexity.

A kind of data processing method comprises:

Obtain grouping information, said grouping information comprises group id, the sequence number of machine terminal in group, and should carry the position of configuration parameter in broadcast by the corresponding public wireless of group;

According to grouping information confirm that the corresponding public wireless of group carries under the machine terminal (RB, RadioBearer);

Generate media access control protocol layer (MAC, Media Access Control) PDU and RLC PDU;

Send MAC PDU and RLC PDU to the common user plane entity through said public wireless carrying, said common user plane entity is that network equipment is a shared user entity that carries one group of machine terminal foundation of transmission through said public wireless.

A kind of data processing method comprises:

Obtain the grouping information of machine terminal according to the strategy that presets, said grouping information comprises group id, the sequence number of machine terminal in group, and should the corresponding position of public wireless carrying configuration parameter in broadcast of group;

Grouping information is notified to machine terminal;

Receive machine terminal and carry MAC PDU and the RLC PDU that sends through public wireless according to said grouping information.

A kind of machine terminal comprises:

Acquiring unit is used to obtain grouping information, and said grouping information comprises group id, the sequence number of machine terminal in group, and should carry the position of configuration parameter in broadcast by the corresponding public wireless of group;

Confirm the unit, be used for confirming to organize corresponding public wireless carrying under the machine terminal according to the grouping information that acquiring unit gets access to;

Generation unit is used to generate MAC PDU and RLC PDU;

Transmitting element; Be used for carrying MAC PDU and RLC PDU that generation unit is generated through the public wireless of confirming to confirm the unit and send the common user plane entity to, said common user plane entity is that network equipment is a shared user entity of setting up through one group of machine terminal of said public wireless carrying transmission.

A kind of network equipment comprises:

Grouped element is used for obtaining according to the strategy that presets the grouping information of machine terminal, and said grouping information comprises group id, the sequence number of machine terminal in group, and should the corresponding position of public wireless carrying configuration parameter in broadcast of group;

Notification unit is used for the grouping information that grouped element obtains is notified to machine terminal;

Receiving element is used to receive MAC PDU and the RLCPDU that machine terminal is sent according to said grouping information.

A kind of communication system comprises any machine terminal and any network equipment that the embodiment of the invention provides.

The embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and lets the shared radio bearer of machine terminal in the group, makes that the machine terminal in the group can only corresponding public RLC entity; And need not all to set up the PLC entity of a correspondence for each machine terminal; When saving Internet resources, can also omit some header packet informations of MAC PDU and RLC PDU, such as omitting Logic Channel Identifier (LCH-ID; Logic Channel IDentity) information or reduce the byte number of these information such as; So in terms of existing technologies, can save the packet header expense, thereby can reduce processing complexity and improve efficiency of transmission.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art 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 the flow chart of the data processing method that provided of the embodiment of the invention one;

Fig. 2 is the flow chart of the data processing method that provided of the embodiment of the invention two;

Fig. 3 is the scene sketch map of the data processing method that provides of the embodiment of the invention;

Fig. 4 is the structural representation of MAC PDU and RLC PDU among the embodiment three;

Fig. 5 is the structural representation of MAC PDU and RLC PDU among the embodiment four;

Fig. 6 is the structural representation of MAC PDU and RLC PDU among the embodiment five;

Fig. 7 a is the structural representation of MAC PDU and RLC PDU among the embodiment six;

Fig. 7 b is another structural representation of MAC PDU and RLC PDU among the embodiment six;

Fig. 8 a is the structural representation of the machine terminal that provides of embodiment;

Fig. 8 b is another structural representation of the machine terminal that provides of embodiment;

Fig. 8 c is the another structural representation of the machine terminal that provides of embodiment;

Fig. 9 a is the structural representation of the network equipment that provides of embodiment;

Fig. 9 b is another structural representation of the network equipment that provides of embodiment;

Fig. 9 c is the another structural representation of the network equipment that provides of embodiment;

Fig. 9 d is the another structural representation of the network equipment that provides of embodiment;

Fig. 9 e is the another structural representation of the network equipment that provides of embodiment;

Fig. 9 f is the another structural representation of the network equipment that provides of embodiment.

Embodiment

To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.

In MTC communication, can the terminal be divided into the terminal (terminal of for convenience, domestic consumer being used is called ordinary terminal) of machine terminal (being MTC Device) and domestic consumer's use.Machine terminal specifically can be equipment such as automatic vending machine, kilowatt meter recorder, and along with the widespread deployment that M2M uses, machine terminal quantity also increases gradually; The communication of a large amount of machine terminal will influence the communication of mobile phone terminal, such as, the more Radio Resource because machine communication has accounted for; Initiate success rate and speech quality so reduced the business of mobile phone, or the like, so; Should avoid machine communication to take too much Radio Resource, to guarantee the proper communication quality of ordinary terminal as far as possible.

The embodiment of the invention provides a kind of data processing method, device and system.Below be elaborated respectively.

Embodiment one,

Present embodiment will be from transmitting terminal, and promptly the angle of machine terminal is described.

A kind of data processing method; Comprise: obtain grouping information; When confirming to need access network; Generate MAC PDU and RLC PDU, confirm to organize corresponding public wireless carrying under the machine terminal, carry through the public wireless of confirming and send MAC PDU and RLC PDU to the common user plane entity according to grouping information.Wherein, grouping information comprises group id, the sequence number of machine terminal in group, and should carry the information such as position of configuration parameter in broadcast by the corresponding public wireless of group; The common user plane entity is that network equipment is a shared user entity that carries one group of machine terminal foundation of transmission through this public wireless.

Referring to Fig. 1, idiographic flow is following:

101, obtain grouping information; Wherein, this grouping information comprise group id (ID, IDentity), machine terminal the group in sequence number; And should organize the corresponding position of public wireless carrying configuration parameter in broadcast, can also comprise this and organize the information such as zero-time of initiating access;

For example; Machine terminal can be obtained grouping information from network side; Promptly according to the strategy that presets machine terminal is divided into groups, obtain grouping information, give each machine terminal and relevant other equipment with grouping information through special-purpose connection or paging delivery by network side then by network side.

Again for example, can divide into groups to machine terminal according to the strategy that presets, obtain grouping information, then this grouping information directly is configured on the machine terminal by network side.

102, confirm to organize corresponding public wireless carrying under this machine terminal according to grouping information;

In embodiments of the present invention; The all shared radio bearer of machine terminal in all groups; For convenience; The radio bearer that this is shared is called public wireless and carries; It can be a static radio bearer by broadcast broadcasting that this public wireless carries, and all group inner machine terminals can be read from broadcast according to " the corresponding public wireless of this group carries the position of configuration parameter in broadcast " in the grouping information and belonged to the relevant configuration that this public wireless carries, and on official hour point, initiate to insert.

103, generate MAC PDU and RLC PDU; This MAC PDU and RLC PDU are fit to MAC PDU and the RLC PDU that Internet of Things is used; For example, specifically can adopt following any one method:

(1) MAC layer and rlc layer all do not have dividing function, as follows:

Once transmission only generates a MAC PDU and a RLC PDU, and promptly once transmission is exactly a complete Internet protocol (IP, an Internet Protocol) packet; So the packet header of MAC PDU can include only the Length Indication of the service data unit (SDU, Service Data Unit) of MAC, and transmission sequence number of the prior art (TSN; Transmission Sequence Number), split indication (SS; Segmentation Status) and information such as LCH-ID then can omit, RLC PDU then can adopt the structure of transparent mode (TM, Transparent Mode); Do not need RLC to retransmit, do not need packet header.

(2) the MAC layer does not have dividing function, and rlc layer has dividing function, as follows:

Once transmission generates a MAC PDU and at least one RLC PDU; The i.e. fixing length of RLC PDU, but the number of RLC PDU do not limit, then at the MAC layer; All RLC PDU are connected in series at a Transmission Time Interval (TTI, Transmission Time Interval) launch; Because once transmission only generates a MAC PDU; So with (1) in like manner; The packet header of MAC PDU also can be omitted TSN of the prior art, split information such as indication and LCH-ID; Different is that what the packet header of the MAC PDU of this moment comprised is the number of MAC SDU, rather than the Length Indication of MAC SDU; This moment, RLCPDU then can adopt the structure of Unacknowledged Mode (UM, Unacknowledged Mode), did not need RLC to retransmit equally; Wherein, the packet header of RLC PDU comprise the sequence number that is used to sort (SN, SequenceNumber) with filling bit outside the length of data.

(3) the MAC layer has dividing function, and rlc layer does not have dividing function, as follows:

Once transmission generates a RLC PDU and at least one MAC PDU; Be that RLC PDU can not need ordering, MAC PDU then needs ordering, so; The packet header of MAC PDU includes only the TSN that is used to sort, the Length Indication that splits indication and MAC SDU; RLC PDU then can adopt the structure of transparent mode, does not need RLC to retransmit, and does not need packet header.

(4) MAC layer and rlc layer all have dividing function, as follows:

Once transmission generates at least one MAC PDU and at least one RLC PDU; Be that RLC PDU and MAC PDU need ordering; So the packet header of MAC PDU only comprises the TSN that is used to sort, the Length Indication that splits indication and MAC SDU; RLC PDU then adopts the structure of Unacknowledged Mode, does not need RLC to retransmit; Wherein, the packet header of RLC PDU only comprises the length of data outside the SN that is used to sort and the filling bit.

In addition; The packet header of MAC PDU can also comprise machine terminal sign (device ID); Such as, if the MAC layer need carry out control such as Timing Advance (TA, the words of TimeAdvance) safeguarding that some are distinguished by machine terminal; Then in above-mentioned 4 kinds of methods, the packet header of MAC PDU can also comprise the machine terminal sign.If but the MAC layer need not be safeguarded TA, then do not need the machine terminal sign yet; Perhaps; If the physical source distributing mode can make the common user plane entity confirm through information such as radio bearer, code channel, times which machine terminal MAC PDU belongs to; For example be designated each machine terminal according to machine terminal and disposed the time of sending upstream data through broadcasting; Making each other can be not overlapping when machine terminal is sent upstream data, and then network can infer it is the data which machine terminal is sent according to the data arrives time, so.Also can not need the machine terminal sign.Except the method whether the stationary machines terminal iidentification exists, can also in the packet header of MAC PDU, carry the indication that is used to indicate the machine terminal sign whether to exist.

What need explanation is, if there are at least two logic channels, then the packet header of MAC PDU can also comprise the LCH-ID that is used to indicate the logic channel that is adopted, but in terms of existing technologies, the bit of LCH-ID (bit) number can correspondingly reduce.

104, send MAC PDU and RLC PDU to the common user plane entity through the public wireless carrying of confirming, wherein, this user entity comprises MAC layer (being the MAC entity) and rlc layer (being the RLC entity).

Optional, if desired data are encrypted, then the random number COUNT that is used to decipher also can be carried in the packet header of PDU, and for example, this method can also comprise the steps:

At the MAC layer MAC PDU that generates is encrypted, then the packet header of MAC PDU also comprises the random number COUNT that is used to decipher; Perhaps,

At rlc layer the RLC PDU that generates is encrypted, then the packet header of RLC PDU also comprises random number COUNT and/or the machine terminal sign that is used to decipher.

By on can know that the embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and let the shared radio bearer of machine terminal in the group; Make and organize only public RLC entity of correspondence of interior machine terminal; And need not all to set up the PLC entity of a correspondence for each machine terminal, when saving Internet resources, can also omit some header packet informations of MAC PDU and RLC PDU; Such as omitting information such as LCH-ID or reducing bit (bit) number of these information; So in terms of existing technologies, can save the packet header expense, thereby can reduce processing complexity and improve efficiency of transmission.

In addition, owing to reduced the shared Radio Resource of machine terminal communication, so, can reduce the influence of machine terminal communication to ordinary terminal, help guaranteeing the communication quality of ordinary terminal.

Embodiment two,

Present embodiment will be from receiving terminal, and promptly the angle of network equipment is described, and this network equipment comprises the common user plane entity at least, can also comprise the chain of command entity.This common user plane entity is that network equipment is a shared user entity that carries one group of machine terminal foundation of transmission through public wireless; And public wireless carries a shared radio bearer of all terminals that refers in each group.

A kind of data processing method; Comprise: the grouping information that obtains machine terminal according to the strategy that presets; Grouping information is notified to machine terminal; Receive machine terminal and carry MAC PDU and the RLC PDU that sends through public wireless, this MAC PDU and RLC PDU are handled according to this grouping information.Wherein, grouping information can comprise group id, the sequence number of machine terminal in group, and should carry the information such as position of configuration parameter in broadcast by the corresponding public wireless of group.

Referring to Fig. 2, idiographic flow can be following:

201, obtain the grouping information of machine terminal according to the strategy that presets, promptly machine terminal is divided into groups according to the strategy that presets, thus the grouping information of obtaining;

This strategy that presets can be set according to the demand of practical application, such as can dividing according to attributes such as the position of each machine terminal and/or server ownership, or the like.

Wherein, grouping information comprises group id, the sequence number of machine terminal in group, and is somebody's turn to do the corresponding position of public wireless carrying configuration parameter in broadcast of group, can also comprise the information such as zero-time that this group initiation inserts;

202, grouping information is notified to machine terminal;

For example, can give each machine terminal and other relevant equipment through special-purpose connection or paging delivery with grouping information.

203, receive machine terminal and carry MAC PDU and the RLC PDU that sends through public wireless according to grouping information;

What need explanation is; In embodiments of the present invention; The all shared radio bearer of machine terminal in all groups; Being called public wireless carries; It can be a static radio bearer by broadcast broadcasting that this public wireless carries, and all group inner machine terminals can be read from broadcast according to " the corresponding public wireless of this group carries the position of configuration parameter in broadcast " in the grouping information and belonged to the relevant configuration that this public wireless carries, and on official hour point, initiate to insert.

Because all shared radio bearer of machine terminal in the group; So that the machine terminal in the group can only corresponding public RLC entity; And need not all to set up the PLC entity of a correspondence for each machine terminal; When saving Internet resources, can also omit some header packet informations of MAC PDU and RLC PDU.Further, this data processing method can also comprise step 204;

204, MAC PDU and the RLC PDU that receives handled.For example, specifically can be following:

(1) if once transmitting, machine terminal only generates a MAC PDU and a RLC PDU; Wherein, the packet header of MAC PDU only comprises the Length Indication of MAC SDU, and RLC PDU adopts the words of the structure of transparent mode; Then, MAC PDU and RLC PDU handled be specially:

The upper strata is resolved and submitted to length according to MAC SDU to MAC PDU; RLC PDU is resolved and directly submits to the upper strata.

(2) if once transmitting, machine terminal generates a MAC PDU and at least one RLC PDU; Wherein, The packet header of MAC PDU only comprises the number of MAC SDU, and the words of the length of data outside SN that RLC PDU adopts the structure of Unacknowledged Mode, the packet header of RLC PDU only to comprise to be used to sort and the filling bit; Then, MAC PDU and RLC PDU handled be specially:

The upper strata is resolved and submitted to number according to MAC SDU to MAC PDU; RLC PDU is resolved, sorts and be connected in series reorganization according to the length of data outside sequence number SN and the filling bit, and submit to the upper strata.

(3) if once transmitting, machine terminal generates a RLC PDU and at least one MAC PDU; Wherein, The packet header of MAC PDU only comprises the TSN that is used to sort, the Length Indication that splits indication and MAC SDU; And RLC PDU adopts the structure of transparent mode, then MAC PDU and RLC PDU is handled being specially:

MAC PDU is resolved, sorts and be connected in series reorganization according to transmission sequence number TSN, the Length Indication that splits indication and MAC SDU, and submit to the upper strata; RLC PDU is resolved and submits to the upper strata.

(4) if once transmitting, machine terminal generates at least one RLC PDU and at least one MACPDU; Wherein, The packet header of MAC PDU only comprises the TSN that is used to sort, the Length Indication that splits indication and MAC SDU; And the length of data outside SN that RLC PDU adopts the structure of Unacknowledged Mode, the packet header of RLC PDU only to comprise to be used to sort and the filling bit then handles being specially to MAC PDU and RLC PDU:

MAC PDU is resolved, sorts and be connected in series reorganization according to TSN, the Length Indication that splits indication and MAC SDU, and submit to the upper strata; RLCPDU is resolved, sorts and be connected in series reorganization according to the length of data outside sequence number SN and the filling bit, and submit to the upper strata.

In addition; If data are through encrypting, then the common user plane entity also need be deciphered PDU, such as; If machine terminal is encrypted data at the MAC layer; Then can also comprise the random number COUNT that is used to decipher in the packet header of MAC PDU, then this moment, MAC PDU and RLC PDU are handled (being step 204) can also be comprised: MAC PDU is deciphered according to random number COUNT at MAC.Perhaps,

If machine terminal is encrypted data at rlc layer; Then the packet header of RLC PDU can also comprise random number COUNT and/or the machine terminal sign that is used to decipher, and then MAC PDU and RLC PDU is handled (being step 204) and also comprises: RLC PDU is deciphered according to random number COUNT at RLC.

In addition; The packet header of MAC PDU can also comprise machine terminal sign, and so, the MAC layer of network equipment can also carry out operations such as some controls distinguished by machine terminal such as Timing Advance maintenance according to the machine terminal sign; Optional; The packet header of MAC PDU can also be used to indicate machine terminal to identify the indication that whether exists, and then network equipment also need be judged this indication, and promptly step 204 can also comprise:

When confirming that according to the indication that is used to indicate the machine terminal sign whether to exist the machine terminal sign exists, read the machine terminal sign in the MAC pdu header.

Otherwise, do not exist if confirm the machine terminal sign, then show not have the machine terminal sign in the MAC pdu header, then can directly read follow-up header packet information, such as TSN, split the Length Indication of indication or MACSDU etc.

Wherein, The transmission (being step 201 and step 202) of grouping and grouping information specifically can be carried out by the chain of command entity in the network equipment, and specifically can be carried out by the common user plane entity in the network equipment reception and the processing (being step 203 and step 204) of PDU.

By on can know that the embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and let the shared radio bearer of machine terminal in the group; Make and organize only public RLC entity of correspondence of interior machine terminal; And need not all to set up the PLC entity of a correspondence for each machine terminal, when saving Internet resources, can also omit some header packet informations of MAC PDU and RLC PDU; Such as omitting information such as LCH-ID or reducing the bit number of these information; So in terms of existing technologies, can save the packet header expense, thereby can reduce processing complexity and improve efficiency of transmission.

Embodiment three,

According to the one and two described methods of enforcement, will at length explain for example below.

At first, network side divides into groups to machine terminal according to the strategy that presets, and this strategy that presets can be set according to the demand of practical application, such as can dividing according to attributes such as the position of each machine terminal and/or server ownership, or the like.Give each machine terminal with grouping information through special-purpose connection or paging delivery after the grouping; The content that issues can comprise that group id, this equipment sequence number and corresponding public wireless of this group in group carries the information such as position of configuration parameter in broadcast, can also comprise zero-time that this group initiation inserts or the like.

Wherein, The shared radio bearer configuration of machine terminal in all groups; This radio bearer can be a static radio bearer by broadcast broadcasting; Machine terminal in all groups reads the radio bearer configuration parameter that belongs to this group through the information that obtains in advance from broadcast, and on official hour point, initiates to insert.The carrying of chain of command public wireless is set up flow process and can be repeated no more at this referring to prior art.

In order to save the processing resource of Access Network, and make full use of the business characteristic that the MTC business is single, data volume is little and allow certain mortality, can let all corresponding public RLC entity of all machine terminal in each group and corresponding MAC entity.For convenience, in embodiments of the present invention, public RLC entity and MAC entity are referred to as the common user plane entity.

Equipment adopts based on competition or non-competing access way in no matter organizing; The data of different machines terminal room need not to keep a definite sequence at L2; Data between each machine terminal can out of orderly send to core net, are guaranteed the mapping relations of data and machine terminal by application layer.

Referring to Fig. 3, as can beappreciated from fig. 3,,, then need not ordering and directly be submitted to the upper strata if the application layer data of a machine terminal does not pass through cutting apart of MAC layer and/or rlc layer for common user plane entity (being public RAN).If through over-segmentation, then sort at the corresponding layer of cutting apart of having done, just submit to then.Two PDU like the machine terminal 6 of MAC layer among the figure: the PDU2 of the PDU1 of machine terminal 6 and machine terminal 6, and two PDU of the machine terminal 2 of rlc layer: the PDU2 of the PDU1 of machine terminal 2 and machine terminal 2; And other PDU then need not to sort such as the PDU of machine terminal 1, machine terminal 3, machine terminal 4, machine terminal 7 and machine terminal n etc., but directly submits to.

In most application scenarioss, because the data volume of each machine terminal is identical and fixing, so when data volume is very little, can adopt complete transparent mode, promptly PDU is not cut apart at MAC layer and RLC, can promote efficient greatly like this.Certainly, can cut apart at rlc layer and/or MAC layer, gain does not although it is so adopt complete transparent mode high yet, but in terms of existing technologies, the bit number of its header packet information too can be less greatly.To these several kinds of application scenarioss, below will be respectively present embodiment (being embodiment three), and be elaborated among embodiment four, five and six.

In the present embodiment; The MAC layer and the rlc layer of machine terminal side all do not have dividing function; Be that each machine terminal is once transmitted and can only be produced a MAC PDU and a RLC PDU; Once transmission is exactly a complete IP packet, so just can guarantee submitting according to the order of sequence between machine terminal, but come machine terminal is distinguished by application layer.Promptly carry according to the public wireless of grouping information being confirmed group place under self (i.e. this machine terminal) in machine terminal; And according to this public wireless carry send MAC PDU and RLCPDU to public user entity after; Public user entity can not sort to MACPDU and the RLC PDU that receives, but directly submits to.

In order to adapt to the demand that reports of different application scene; The size of RLC PDU size is not fixed in machine terminal, but adopt can flexible (flexible) mode, in addition; Transformat combination (the TFC of MAC; Transport Format Combination) selection function also need necessarily be changed, and makes it not consider its maximum available power, but support exceeds the selection of the transmission block length of Power Limitation.Though performance is had certain influence, can save a lot of operations, such as ordering or the like, so overall performance improves in terms of existing technologies.Concrete processing can be following:

(1) the MAC layer of machine terminal side

Because the MTC business has unicity, so the transmitting terminal data transfer phase can be only with a logic channel, like this; Can not carry LCH-ID in the packet header of the MAC PDU that machine terminal generated, in addition, because the MAC layer is not cut apart data; So the TSN that the packet header of MAC PDU also can not carried in the existing system indicates with splitting; And only need comprise the L territory that is used to indicate MAC SDU size, wherein, the bit number in L territory can carry out corresponding minimizing according to concrete applicable cases.

Certainly, if at least two logic channels are set, then need in the packet header of MAC PDU, add LCH-ID, still, the bit number of LCH-ID can correspondingly reduce.

In addition,, safeguard etc., then also can in the packet header of MAC PDU, carry the machine terminal sign such as TA if the MAC layer of Long Term Evolution (LTE, Long Term Evolution) system need carry out controls that some are distinguished by machine terminal.If but the MAC layer need not be safeguarded TA, then do not need the machine terminal sign yet; Perhaps; If the physical source distributing mode can make the common user plane entity confirm through information such as radio bearer, code channel, times which machine terminal MAC PDU belongs to; For example be designated each machine terminal according to machine terminal and disposed the time of sending upstream data through broadcasting; Making each other can be not overlapping when machine terminal is sent upstream data, and then network can infer it is the data which machine terminal is sent according to the data arrives time, so.Also can not need the machine terminal sign.

Except the method whether the stationary machines terminal iidentification exists, can also in the packet header of MAC PDU, carry the indication that is used to indicate the machine terminal sign whether to exist, such as indicating bit I.

(2) the MAC layer of common user plane entity

If do not comprise LCH-ID in the packet header of the MAC PDU that receives; It is the mode that the machine terminal side has adopted no LCH-ID; Then the MAC layer of common user plane entity need not the logic channel mapping in the existing system; If contain LCH-ID in the packet header of the MAC PDU that receives, then the common user plane entity need increase the logic channel mapping function.

Because the MAC layer of machine terminal side is not cut apart data; So the common user plane entity is after receiving MAC PDU; Need not recombinate (reordering) and demultiplexing, also need not MAC PDU is connected in series merging, but directly submit to the upper strata after resolving MAC PDU.

In addition, if the MAC layer of LTE system need carry out some by the control that machine terminal is distinguished, safeguard such as TA; Then also need obtain the machine terminal sign this moment; Control according to machine terminal sign then or processing such as TA maintenance, see present technology for details, repeat no more at this.Wherein, Obtain the machine terminal sign and can adopt multiple mode; Such as, if carry the machine terminal sign in the packet header of MAC PDU, then from the packet header of MAC PDU, extract the machine terminal iidentification; If do not carry the machine terminal sign in the packet header of MAC PDU, then can confirm which machine terminal MAC PDU belongs to through information such as radio bearer, code channel and times.

If also carried indicating bit I in the packet header of MAC PDU, then this common user plane entity also need be understood this indicating bit I at the MAC layer, and judges whether machine terminal exists.

(3) rlc layer of machine terminal side:

The structure of the RLC PDU that the machine terminal adnation becomes can adopt the transparent mode structure, can give application layer and HARQ and retransmit, so can not need to retransmit at the MAC layer, promptly RLC PDU does not need packet header, directly passes through the rlc layer of common user plane entity yet.

Certainly, owing to data are not cut apart,, but adopt flexible mode, make the RLC PDU size that the transparent mode structural support is different so the size of RLC PDU is not fixed at rlc layer.

(4) rlc layer of common user plane entity:

Because the rlc layer of machine terminal side is not cut apart data, so the common user plane entity after receiving RLC PDU, need not RLC PDU is sorted, need not MAC PDU is connected in series merging yet, but directly submits to the upper strata.

(5) encrypt

In the LTE system; Encrypt if desired; And AES is placed on the PDCP layer; Then need carry the machine terminal sign in the packet header of the RLC PDU that machine terminal generated at this moment,, according to decryption information the RLC PDU that receives deciphered then so that the common user plane entity can be known deciphering (Key) information from high level according to the machine terminal sign; Certainly, if public user entity can confirm which machine terminal RLC PDU belongs to through information such as radio bearer, code channel, times, then also can not need carry the machine terminal sign.

Then can be placed on rlc layer or MAC layer for the W system encryption, be placed on the MAC layer if encrypt, after then machine terminal generates MAC PDU, the random number COUNT that also need carry the machine terminal sign in the packet header of MAC PDU and be used to decipher.Be placed on rlc layer if encrypt, after then machine terminal generates RLC PDU, the random number COUNT that also need carry the machine terminal sign in the packet header of RLC PDU and be used to decipher.Wherein, random number COUNT is generated by machine terminal at random.Same, if public user entity can confirm which machine terminal RLC PDU belongs to through information such as radio bearer, code channel, times, then also can not need carry the machine terminal sign in the packet header of MAC PDU or RLC PDU.

In order to understand above explanation better, Fig. 4 has provided the structural representation of MAC PDU and RLC PDU, and what need to explain is, Fig. 4 is that example describes need not to encrypt and only have a logic channel.Wherein, dotted portion representes that this information also can omit.

By on can know that the embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and let the shared radio bearer of machine terminal in the group; Make and organize only public RLC entity of correspondence of interior machine terminal, and need not all to set up the PLC entity of a correspondence, save Internet resources for each machine terminal; And; In the present embodiment, owing to all need not data are cut apart, need not in the packet header of MAC PDU, to carry information such as TSN and fractionation indication at MAC layer and rlc layer; RLC PDU then need not packet header fully; So can save the expense in packet header on the whole greatly, in terms of existing technologies, can reduce processing complexity and improve efficiency of transmission.

Embodiment four,

Different with embodiment three is, in the present embodiment, the MAC layer of machine terminal side does not possess dividing function, and rlc layer has dividing function, that is to say, each machine terminal is once transmitted and can only be generated a MAC PDU, but the number of RLC PDU is not limit.At this moment, fixing RLC length, and the MAC layer needs the RLC PDU of all generations is connected in series a TTI emission.The RLC PDU of rlc layer needs ordering, and the MAC PDU of MAC layer does not need ordering.The concrete processing as follows:

(1) the MAC layer of machine terminal side

The MAC layer of machine terminal is concrete to be handled with embodiment three similarly, and difference only is: because fixing RLCPDU length, so available MAC SDU number N replaces the L territory, other can repeat no more at this referring to embodiment three.

(2) the MAC layer of common user plane entity

The concrete processing of the MAC layer of common user plane entity is similar with embodiment three, and difference only is: need discern the MAC SDU that comprises what regular lengths in the MAC PDU with MAC SDU number N.Other explanation can be repeated no more at this referring to embodiment three.

(3) rlc layer of machine terminal side

The RLC PDU structure of machine terminal can adopt the PDU structure of Unacknowledged Mode, does not need RLC to retransmit.The length that need comprise data outside the sequence number SN that is used to sort and the filling bit in the packet header of the RLC PDU that generates; Can also comprise the machine terminal sign; This machine terminal sign specifically can not adopt wireless network used in the prior art to identify (RNTI temporarily; Radio Network TemporaryIdentifier) and so on; But be the numeral that machine terminal is distributed by system according to the size of group, and the bit number of sequence number SN also can correspondingly reduce to save the packet header expense.

If the common user plane entity can confirm which machine terminal MAC PDU belongs to through information such as radio bearer, code channel, times; For example; Through broadcasting, be designated each machine terminal according to machine terminal and disposed the time of sending upstream data, making each other can be not overlapping when machine terminal is sent upstream data; Then network can infer it is the data which machine terminal is sent according to the data arrives time, so.Also can not need machine terminal sign, but by the MAC layer through the machine terminal ownership situation of each RLC PDU is informed rlc layer.

(4) rlc layer of common user plane entity

The rlc layer of common user plane entity is resolved, is sorted RLC PDU according to the length of data outside sequence number SN and the filling bit and is connected in series reorganization, and submits to the upper strata.

What need explanation is; Because once all RLC PDU of transmission can be encapsulated among the MAC PDU; If so can carry out decapsulation according to the order among the MAC PDU when realizing, then just can guarantee to recombinate according to the order of sequence, then at this moment also can not need sequence number SN.If but the group membership is excessive, can cause the sequencing queue of RLC entity maintaining too much, cause the ability need of RLC entity handles is increased.

(5) encrypt:

In the LTE system; Encrypt if desired; And AES is placed on the PDCP layer; Then need carry the machine terminal sign in the packet header of the RLC PDU that machine terminal generated at this moment,, according to decryption information the RLC PDU that receives deciphered then so that the common user plane entity can be known decryption information from high level according to the machine terminal sign; Certainly, if public user entity can confirm which machine terminal RLC PDU belongs to through information such as radio bearer, code channel, times, then also can not need carry the machine terminal sign.

Then can be placed at rlc layer for the W system encryption; Owing to need comprise SN in the packet header of RLC PDU among this embodiment; So can continue to use in the prior art with SN and Hyper Frame Number (HFN; Hyper frame number) calculates the method for COUNT,, get final product and only need carry the machine terminal sign so also can not need among the RLC PDU carry COUNT.Same, if public user entity can confirm which machine terminal RLC PDU belongs to through information such as radio bearer, code channel, times, then also can not need in the packet header of RLC PDU carry the machine terminal sign.

Then also can be placed on layer for the W system encryption, specifically can repeat no more at this referring to embodiment three at MAC.

In order to understand above explanation better, Fig. 5 has provided the structural representation of MAC PDU and RLC PDU, and what need to explain is, Fig. 5 is that example describes need not to encrypt and only have a logic channel.Wherein, dotted portion representes that this information also can omit.

By on can know that the embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and let the shared radio bearer of machine terminal in the group; Make and organize only public RLC entity of correspondence of interior machine terminal, and need not all to set up the PLC entity of a correspondence, save Internet resources for each machine terminal; And, in the present embodiment, owing to need not data are cut apart at the MAC layer; So need not in the packet header of MAC PDU, to carry information such as TSN and fractionation indication; Though and rlc layer need be cut apart, the bit number of the information such as SN that the packet header of RLC PDU is entrained can reduce than prior art, so also can save the expense in packet header on the whole; In terms of existing technologies, can reduce processing complexity and improve efficiency of transmission.

Embodiment five,

Different with front embodiment is, in the present embodiment, the rlc layer of machine terminal does not have dividing function, and the MAC layer has dividing function, that is to say, each machine terminal is once transmitted and can only be produced a RLC PDU, and the number of MAC PDU is not then limit.At this moment, because the RLC bag maybe be very big, thus can the size of RLC PDU size not fixed, but adopt flexible mode (being flexiblePDU size) to adapt to the different demands that reports.The RLC PDU of rlc layer does not need ordering, and the MAC PDU of MAC layer needs ordering.Concrete processing can be following:

(1) the MAC layer of machine terminal side:

Because the MTC business has unicity, so the transmitting terminal data transfer phase can like this, can not carry LCH-ID in the packet header of the MAC PDU that machine terminal generated only with a logic channel; In addition, because the MAC layer needs data to cut apart, so TSN, fractionation indication need be carried in the packet header of MAC PDU, and the L territory that is used to indicate MAC SDU size, wherein, the bit number in L territory can carry out corresponding minimizing according to concrete applicable cases.

The packet header of MAC PDU can also comprise machine terminal sign, if the MAC layer of LTE system need carry out controls that some are distinguished by machine terminal, safeguards etc. such as TA, also need use the machine terminal sign.If but the physical source distributing mode can make the common user plane entity confirm through information such as radio bearer, code channel, times which machine terminal MAC PDU belongs to; For example be designated each machine terminal according to machine terminal and disposed the time of sending upstream data through broadcasting; Making each other can be not overlapping when machine terminal is sent upstream data; Then network can infer it is the data which machine terminal is sent according to the data arrives time, so.Also can not need the machine terminal sign.

(2) the MAC layer of common user plane entity:

Because the MAC layer of machine terminal side is cut apart data; So the common user plane entity is after receiving MAC PDU; The MAC layer of common user plane entity need be provided with sequencing queue to each machine terminal, according to the machine terminal sign, perhaps according to the corresponding situation of physical resource and device the MAC PDU that receives is delivered in the corresponding sequencing formation and sorts; And after being connected in series reorganization, just submit to the upper strata.

In addition,, safeguard, then also need control this moment or processing such as TA maintenance, see present technology for details, repeat no more at this such as TA if the MAC layer of LTE system need carry out controls that some are distinguished by machine terminal.

(3) rlc layer of machine terminal side:

The structure of the RLC PDU that the machine terminal adnation becomes can adopt the transparent mode structure, specifically can repeat no more at this referring to embodiment three.

(4) rlc layer of common user plane entity:

(5) encrypt:

Encryption is identical with enforcement three, sees embodiment three for details, repeats no more at this.

Figure below has been showed the structure chart (supposing that the sequencing queue that the MAC layer need use device ID to distinguish PDU belongs to) of MAC layer, because the complete transparent transmission of rlc layer, so structure chart repeats no more.

In order to understand above explanation better, Fig. 6 has provided the structural representation of MAC PDU and RLC PDU, and what need to explain is, Fig. 6 is that example describes need not to encrypt and only have a logic channel.Wherein, dotted portion representes that this information also can omit.

By on can know that the embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and let the shared radio bearer of machine terminal in the group; Make and organize only public RLC entity of correspondence of interior machine terminal, and need not all to set up the PLC entity of a correspondence, save Internet resources for each machine terminal; And; In the present embodiment, owing to need not data are cut apart at RLC, so need not can not need header packet information at RLCPDU; Though and the MAC layer need be cut apart data; But the TSN that carries in the packet header of MAC PDU can reduce than prior art with the bit number that splits information such as indication, thus also can save the expense in packet header on the whole, so in terms of existing technologies; Adopt the scheme of present embodiment can less greatly packet header expense, thereby reduce processing complexity and improve efficiency of transmission.

Embodiment six,

Among this embodiment, MAC layer and rlc layer are all supported dividing function, that is to say, each machine terminal is once transmitted and can be produced at least two RLC PDU and MAC PDU, and promptly the quantity of RLC PDU and MAC PDU does not all have restriction.At this moment, rlc layer can adopt the fixedly mode of RLC PDU size, and the MAC layer then is connected in series RLC PDU or cutting according to channel condition.Concrete processing can be following:

(1) the MAC layer of machine terminal side

Specifically can adopt dual mode to realize, as follows:

First kind of mode: the packet header of MAC PDU need be carried TSN, splits indication, is used to indicate the L territory of MACSDU size and machine terminal to identify, and wherein, the bit number in L territory can carry out corresponding minimizing according to concrete applicable cases.

The second way: the packet header of MAC PDU also can not carry TSN, split indication, and the L territory that is used to indicate MAC SDU size, but carries MAC SDU number N and machine terminal sign, but needs dictate not carry out cutting to RLC PDU.

The second way can more be saved the expense in packet header with respect to first kind, and need not ordering at the MAC layer, but sorts at rlc layer.

Because the MTC business has unicity, so the transmitting terminal data transfer phase can like this, can not carry LCH-ID in the packet header of the MAC PDU that machine terminal generated only with a logic channel; Certainly, if at least two logic channels are set, then need in the packet header of MAC PDU, add LCH-ID, still, the bit number of LCH-ID can correspondingly reduce.

What need explanation is; If the physical source distributing mode can make the common user plane entity confirm through information such as radio bearer, code channel, times which machine terminal MAC PDU belongs to; For example be designated each machine terminal according to machine terminal and disposed the time of sending upstream data through broadcasting; Making each other can be not overlapping when machine terminal is sent upstream data, and then network can infer it is the data which machine terminal is sent according to the data arrives time, so.MAC PDU also can not need carry the machine terminal sign.

(2) the MAC layer of common user plane entity:

After the MAC layer of common user plane entity receives MAC PDU, need be according to TSN, split MAC PDU that indication, L territory and machine terminal sign send machine terminal and sort and be connected in series reorganization, submit to the upper strata then.If only there is a logic channel in the transmitting terminal data transfer phase, then need not to carry out logic channel mapping of the prior art this moment.

(3) rlc layer of machine terminal side:

Concrete processing mode is identical with embodiment four, specifically can repeat no more at this referring to embodiment four.

(4) rlc layer of common user plane entity:

(5) encrypt:

In order to understand above explanation better, Fig. 7 a and Fig. 7 b have provided the MAC PDU of present embodiment and the structural representation of RLC PDU, and what need explain is, Fig. 7 a and Fig. 7 b are that example describes need not to encrypt and only have a logic channel all.Wherein, dotted portion representes that this information also can omit.In Fig. 7 a, what MAC PDU structure was corresponding is first kind of processing mode, and similar among this MAC PDU structure and Fig. 6 just can all be distributed a L territory to each MAC SDU that is serially connected in a MAC PDU.And the MAC PDU structure among Fig. 7 b corresponding be second kind of processing mode, identical among this MAC PDU structure and Fig. 5, and the RLC PDU among Fig. 7 a and Fig. 7 b all with Fig. 5 in identical.

By on can know that the embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and let the shared radio bearer of machine terminal in the group; Make and organize only public RLC entity of correspondence of interior machine terminal, and need not all to set up the PLC entity of a correspondence, save Internet resources for each machine terminal; In the present embodiment, though all need cut apart at MAC layer and rlc layer data, can reduce each information of carrying in the packet header of MAC PDU and RLC PDU bit number; And LCH-ID need not carried in the packet header of MACPDU yet; Though so gain does not have embodiment three, four and five big, in terms of existing technologies, its packet header expense also reduces; So, can reduce processing complexity too and improve efficiency of transmission.

Embodiment seven,

In order to implement above method better, the embodiment of the invention also provides a kind of machine terminal, and referring to Fig. 8 a, this machine terminal comprises acquiring unit 701, generation unit 702, confirms unit 703 and transmitting element 704;

Acquiring unit 701 is used to obtain grouping information, and wherein, grouping information comprises group id, the sequence number of machine terminal in group, and should carry the position of configuration parameter in broadcast by the corresponding public wireless of group; Can also comprise the information such as zero-time that this group initiation inserts;

For example, can divide into groups to machine terminal according to the strategy that presets, obtain grouping information, give the acquiring unit 701 and relevant other equipment of each machine terminal with grouping information through special-purpose connection or paging delivery by network side then by network side.

Confirm unit 702, be used for confirming to organize corresponding public wireless carrying under the machine terminal according to the grouping information that acquiring unit 701 gets access to;

Generation unit 703 is used to generate MAC PDU and RLC PDU; This MAC PDU and RLC PDU are fit to MAC PDU and the RLC PDU that Internet of Things is used;

Transmitting element 704; Be used for sending MAC PDU and the RLC PDU that generation unit 703 generates to the common user plane entity through the public wireless carrying of confirming to confirm unit 703; Wherein, the common user plane entity is that network equipment is a shared user entity that carries one group of machine terminal foundation of transmission through this public wireless.

Wherein, generation unit 703 is specially first generation module, or second generation module, or the 3rd generation module, or the 4th generation module;

First generation module; Be used for when the MAC of machine terminal side layer and rlc layer are not set dividing function, once transmission generates a MAC PDU and a RLC PDU, wherein; The packet header of MAC PDU only comprises the Length Indication of MAC SDU, and RLC PDU adopts the structure of transparent mode; Be in the prior art MACPDU packet header TSN, split information such as indication and LCH-ID and can omit, RLC PDU does not then need packet header, does not need RLC to retransmit, referring to front embodiment.

Second generation module; Be used for not setting dividing function at the MAC of machine terminal side layer, when rlc layer was set dividing function, once transmission generated a MAC PDU and at least one RLC PDU; Wherein, The packet header of MACPDU only comprises the number of MAC SDU, and RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of RLCPDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit; Be in the prior art MAC pdu header TSN, split information such as indication and LCH-ID and can omit; And RLCPDU does not need RLC to retransmit equally; And; The bit number of the length of data can carry out suitable minimizing outside sequence number SN that the RLC pdu header is entrained and the filling bit, referring to front embodiment.

The 3rd generates module; Be used for setting dividing function at the MAC of machine terminal side layer; When rlc layer was not set dividing function, once transmission generated a RLC PDU and at least one MAC PDU, wherein; The packet header of MACPDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU, and RLC PDU adopts the structure of transparent mode; Be that information such as LCH-ID can be omitted in the prior art MAC pdu header, RLC PDU does not then need packet header, does not need RLC to retransmit, referring to front embodiment.

The 4th generation module; Be used for when the MAC of machine terminal side layer and rlc layer are all set dividing function; Once transmission generates at least one MAC PDU and at least one RLC PDU, and wherein, the packet header of MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU; RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of RLC PDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit.Be that information such as LCH-ID can be omitted in the prior art MAC pdu header; And RLC PDU does not need RLC to retransmit equally; And the bit number of the length of data can carry out suitable minimizing outside sequence number SN that the RLC pdu header is entrained and the filling bit, referring to front embodiment.

Shown in Fig. 8 b, this machine terminal can also comprise first ciphering unit 705;

First ciphering unit 705 is used at the MAC layer MAC PDU that generates being encrypted;

Then the packet header of the MAC PDU of generation unit 703 generations also comprises the random number COUNT that is used to decipher.

Perhaps, shown in Fig. 8 c, this machine terminal also can comprise second ciphering unit 706;

Second ciphering unit 706 is used at rlc layer the RLC PDU that generates being encrypted;

Then the packet header of the RLC PDU of generation unit 703 generations also comprises random number COUNT and/or the machine terminal sign that is used to decipher.

In addition; Can also comprise the machine terminal sign in the packet header of the MAC PDU that generation unit 703 is generated; Such as, if need carrying out some control such as TA that distinguish by machine terminal, the MAC layer safeguards that then the packet header of MAC PDU can also comprise the machine terminal sign.If but the MAC layer need not be safeguarded TA, then do not need the machine terminal sign yet; Perhaps; If the physical source distributing mode can make the common user plane entity confirm through information such as radio bearer, code channel, times which machine terminal MAC PDU belongs to; For example be designated each machine terminal according to machine terminal and disposed the time of sending upstream data through broadcasting; Making each other can be not overlapping when machine terminal is sent upstream data, and then network equipment can infer it is the data which machine terminal is sent according to the data arrives time, so.Also can not need the machine terminal sign.Except the method whether the stationary machines terminal iidentification exists, can also in the packet header of MAC PDU, carry the indication that is used to indicate the machine terminal sign whether to exist.

What need explanation is; If there are at least two logic channels, then the packet header of the MACPDU that generated of generation unit 703 can also comprise the LCH-ID that is used to indicate the logic channel that is adopted, but in terms of existing technologies; The bit number of LCH-ID can correspondingly reduce; So even the packet header expense also can reduce in terms of existing technologies like this.

More than the practical implementation of each unit can repeat no more at this referring to front embodiment.

By on can know that the embodiment of the invention adopts according to presetting strategy divides into groups to machine terminal, and let the shared radio bearer of machine terminal in the group; Make and organize only public RLC entity of correspondence of interior machine terminal; And need not all to set up the PLC entity of a correspondence, thereby after making that the acquiring unit 701 of machine terminal gets access to grouping information, most information of the prior art or bit number can have been omitted in MAC PDU that generation unit 703 generates and the packet header of RLC PDU for each machine terminal; Such as omitting information such as LCH-ID or reducing bit (bit) number of these information; Or the like, so in terms of existing technologies, when saving Internet resources; Can save the packet header expense, thereby reduce processing complexity and improve efficiency of transmission.

Embodiment eight,

Accordingly, the embodiment of the invention also provides a kind of network equipment, and shown in Fig. 9 a, this network equipment comprises grouped element 801, notification unit 802 and receiving element 803;

Grouped element 801 is used for obtaining according to the strategy that presets the grouping information of machine terminal, and wherein, grouping information comprises group id, the sequence number of machine terminal in group, and should the corresponding position of public wireless carrying configuration parameter in broadcast of group; Can also comprise the information such as zero-time that this group initiation inserts;

Notification unit 802 is used for the grouping information that grouped element 801 obtains is notified to machine terminal;

For example, notification unit 802 can be given each machine terminal and other relevant equipment through special-purpose connection or paging delivery with grouping information.

Receiving element 803 is used to receive machine terminal and carries MAC PDU and the RLC PDU that sends through public wireless according to grouping information;

Referring to Fig. 9 f, this network equipment can also comprise processing unit 804;

Processing unit 804, the MAC PDU and the RLC PDU that are used for receiving element 803 is received handle.

If the MAC layer and the rlc layer of machine terminal side are not set dividing function, then machine terminal is once transmitted and is only generated a MAC PDU and a RLC PDU, wherein; The packet header of MAC PDU comprises the Length Indication of MACSDU; RLC PDU adopts the structure of transparent mode, and promptly information such as the TSN in the prior art MAC pdu header, fractionation indication and LCH-ID can be omitted, and RLC PDU does not then need packet header; Do not need RLC to retransmit, referring to front embodiment; Then processing unit 804 can comprise that specifically a MAC handles subelement A8041 and a RLC handles subelement A8042, referring to Fig. 9 b;

The one MAC handles subelement A8041, is used for according to the length of MAC SDU the MAC PDU that receiving element 803 receives being resolved and submit to the upper strata;

The one RLC handles subelement A8042, and the RLC PDU that is used for receiving element 803 is received directly submits to the upper strata.

If the MAC layer of machine terminal side is not set dividing function; Rlc layer is set dividing function, and then machine terminal is once transmitted and generated a MAC PDU and at least one RLC PDU, wherein; The packet header of MAC PDU comprises the number of MAC SDU; RLC PDU then adopts the structure of Unacknowledged Mode, and the packet header of RLC PDU comprises the length of data outside the sequence number SN that is used to sort and the filling bit, promptly the TSN in the prior art MAC pdu header, split information such as indication and LCH-ID and can omit; And RLC PDU does not need RLC to retransmit equally; And the bit number of the length of data can carry out suitable minimizing outside sequence number SN that the RLC pdu header is entrained and the filling bit, referring to front embodiment; Then this moment, processing unit 804 can comprise that specifically the 2nd MAC handles subelement B8041 and the 2nd RLC handles subelement B8042, referring to Fig. 9 c;

The 2nd MAC handles subelement B8041, is used for according to the number of MAC SDU the MAC PDU that receiving element 803 receives being resolved and submit to the upper strata;

The 2nd RLC handles subelement B8042, is used for RLC PDU that the length according to data outside sequence number SN and the filling bit receives receiving element 803 and resolves, sorts and be connected in series reorganization, and submit to the upper strata.

The MAC layer of machine terminal side is set dividing function; Rlc layer is not set dividing function, and then machine terminal is once transmitted and generated a RLC PDU and at least one MAC PDU, wherein; The packet header of MAC PDU comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU; RLCPDU then adopts the structure of transparent mode, and promptly information such as LCH-ID can be omitted in the prior art MAC pdu header, and RLC PDU does not then need packet header; Do not need RLC to retransmit, referring to front embodiment; Then this moment, processing unit 804 can comprise that specifically the 3rd MAC handles subelement C8041 and the 3rd RLC handles subelement C8042, referring to Fig. 9 d;

The 3rd MAC handles subelement C8041, is used for according to transmission sequence number TSN, splits MAC PDU that the Length Indication of indication and MACSDU receives receiving element 803 and resolve, sort and be connected in series reorganization, and submit to the upper strata;

The 3rd RLC handles subelement C8042, and the RLC PDU that is used for receiving element 803 is received submits to the upper strata.

The MAC layer and the rlc layer of machine terminal side are all set dividing function; Then machine terminal is once transmitted and is generated at least one RLC PDU and at least one MAC PDU; Wherein, the packet header of MAC PDU comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU, and RLC PDU then adopts the structure of Unacknowledged Mode; The packet header of RLC PDU comprises the length of data outside the sequence number SN that is used to sort and the filling bit; Be that information such as LCH-ID can be omitted in the prior art MAC pdu header, and RLC PDU does not need RLC to retransmit equally, and; The bit number of the length of data can carry out suitable minimizing outside sequence number SN that the RLC pdu header is entrained and the filling bit, referring to front embodiment; Then this moment, processing unit 804 can comprise that specifically the 4th MAC handles subelement D8041 and the 4th RLC handles subelement D8042, referring to Fig. 9 e;

The 4th MAC handles subelement D8041, is used for according to transmission sequence number TSN, splits MAC PDU that the Length Indication of indication and MACSDU receives receiving element 803 and resolve, sort and be connected in series reorganization, and submit to the upper strata;

The 4th RLC handles subelement D8042, is used for RLC PDU that the length according to data outside sequence number SN and the filling bit receives receiving element 803 and resolves, sorts and be connected in series reorganization, and submit to the upper strata.

Optional; If machine terminal is encrypted RLC PDU or MAC PDU, then the packet header of RLC PDU or MAC PDU can also comprise random number COUNT and/or machine terminal sign, the then this moment that is used to decipher; This network equipment can also comprise decryption unit 805, referring to Fig. 9 f;

Decryption unit 805 is used for according to random number COUNT and/or machine terminal sign MAC PDU or RLC PDU being deciphered.

In addition, can also comprise the machine terminal sign in the packet header of MAC PDU, referring to front embodiment, then at this moment:

Processing unit 804 also is used for carrying out according to machine terminal sign operations such as some controls distinguished by machine terminal such as Timing Advance maintenance.

Optional, the packet header of MAC PDU can also be used to indicate machine terminal to identify the indication that whether exists, referring to front embodiment, then at this moment:

Processing unit 804 when also being used for confirming that according to this indication that is used to indicate the machine terminal sign whether to exist the machine terminal sign exists, reads the machine terminal sign in the MAC pdu header.Otherwise, do not exist if confirm the machine terminal sign, then show not have the machine terminal sign in the MAC pdu header, then can directly read follow-up header packet information, such as TSN, split the Length Indication of indication or MAC SDU etc.

During practical implementation; The entity of this network equipment comprises the common user plane entity at least; Can also comprise the chain of command entity; Can realize specifically that such as grouped element 801 and notification unit receiving element 803 then can be realized by the common user plane entity with processing unit 804 grades by the chain of command entity, or the like.

By on can know; The grouped element 801 of the network equipment of the embodiment of the invention can adopt according to presetting strategy machine terminal is divided into groups, and lets the shared radio bearer of machine terminal in the group, makes that the machine terminal in the group can only corresponding public RLC entity; And need not all to set up the PLC entity of a correspondence for each machine terminal; Make when saving Internet resources, can also omit some header packet informations of MAC PDU and RLC PDU, several such as omitting information such as LCH-ID or reducing the bit (bit) of these information; Or the like; So in terms of existing technologies, can save the packet header expense, thereby can reduce processing complexity and improve efficiency of transmission.

Embodiment nine,

Accordingly, the embodiment of the invention also provides a kind of communication system, and this communication system comprises any machine terminal and the network equipment that the embodiment of the invention provides, and specifically can repeat no more at this referring to front embodiment.

In sum; Network equipment in the communication system that the embodiment of the invention provides can adopt according to presetting strategy machine terminal is divided into groups; And let the shared radio bearer of machine terminal in the group, make that the machine terminal in the group can only corresponding public RLC entity, and need not all to set up the PLC entity of a correspondence for each machine terminal; When saving Internet resources; Can also omit some header packet informations of MAC PDU and RLCPDU, such as omitting information such as LCH-ID or reducing bit (bit) number of these information, so in terms of existing technologies; Can save the packet header expense, thereby can reduce processing complexity and improve efficiency of transmission.

One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to accomplish through program; This program can be stored in the computer-readable recording medium; Storage medium can comprise: read-only memory (ROM; Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.

More than data processing method, device and system that the embodiment of the invention provided have been carried out detailed introduction; Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.

Claims

1. a data processing method is characterized in that, comprising:

Confirm to organize corresponding public wireless carrying under the machine terminal according to grouping information;

Generate the protocol Data Unit MAC PDU of media access control protocol layer and the protocol Data Unit RLC PDU of radio link control layer;

Carry the common user plane entity that MAC PDU and RLC PDU is sent to network equipment through said public wireless, said common user plane entity is that network equipment is a shared user entity that carries one group of machine terminal foundation of transmission through said public wireless.

2. method according to claim 1 is characterized in that, the MAC layer and the rlc layer of machine terminal side are not set dividing function, and then said generation MAC PDU and RLC PDU are specially:

Once transmission generates a MAC PDU and a RLC PDU, and the packet header of said MAC PDU only comprises the Length Indication of the service data unit MAC SDU of access control protocol layer, and said RLC PDU adopts the structure of transparent mode.

3. method according to claim 1 is characterized in that, the MAC layer of machine terminal side is not set dividing function, and rlc layer is set dividing function, and then said generation MAC PDU and RLC PDU are specially:

Once transmission generates a MAC PDU and at least one RLC PDU; The packet header of said MAC PDU only comprises the number of MAC SDU; Said RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of said RLCPDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit.

4. method according to claim 1 is characterized in that, the MAC layer of machine terminal side is set dividing function, and rlc layer is not set dividing function, and then said generation MAC PDU and RLC PDU are specially:

Once transmission generates a RLC PDU and at least one MAC PDU, and the packet header of said MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU, and said RLC PDU adopts the structure of transparent mode.

5. method according to claim 1 is characterized in that, the MAC layer and the rlc layer of machine terminal side are all set dividing function, and then said generation MAC PDU and RLC PDU are specially:

Once transmission generates at least one MAC PDU and at least one RLC PDU; The packet header of said MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU; Said RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of said RLC PDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit.

6. according to each described method of claim 1 to 5, it is characterized in that,

If there are at least two logic channels, the packet header of then said MAC PDU also comprises Logic Channel Identifier.

7. according to each described method of claim 1 to 5, it is characterized in that,

The packet header of said MAC PDU also comprises the machine terminal sign.

8. according to each described method of claim 1 to 5, it is characterized in that,

The packet header of said MAC PDU also comprises the indication that is used to indicate the machine terminal sign whether to exist.

9. according to each described method of claim 1 to 5, it is characterized in that, also comprise:

At the MAC layer MAC PDU that generates is encrypted, the packet header of then said MAC PDU also comprises the random number COUNT that is used to decipher; Perhaps,

At rlc layer the RLC PDU that generates is encrypted, the packet header of then said RLC PDU also comprises random number COUNT and/or the machine terminal sign that is used to decipher.

10. a data processing method is characterized in that, comprising:

Grouping information is notified to machine terminal;

Receive machine terminal and carry the protocol Data Unit MAC PDU of the media access control protocol layer that sends and the protocol Data Unit RLCPDU of radio link control layer through public wireless according to said grouping information.

11. method according to claim 10 is characterized in that,

If the MAC layer and the rlc layer of machine terminal side are not set dividing function; Then machine terminal is once transmitted and is only generated a MAC PDU and a RLC PDU; The packet header of said MAC PDU only comprises the Length Indication of the service data unit MAC SDU of access control protocol layer, and said RLC PDU adopts the structure of transparent mode;

Then this moment, this method also comprises:

The upper strata is resolved and submitted to length according to MAC SDU to MAC PDU;

RLC PDU is directly submitted to the upper strata.

12. method according to claim 10 is characterized in that,

If the MAC layer of machine terminal side is not set dividing function; Rlc layer is set dividing function; Then machine terminal is once transmitted and is generated a MAC PDU and at least one RLC PDU; The packet header of said MAC PDU only comprises the number of MAC SDU, and said RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of said RLCPDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit;

Then this moment, this method also comprises:

The upper strata is resolved and submitted to number according to MAC SDU to MAC PDU;

RLC PDU is resolved, sorts and be connected in series reorganization according to the length of data outside sequence number SN and the filling bit, and submit to the upper strata.

13. method according to claim 10 is characterized in that,

The MAC layer of machine terminal side is set dividing function; Rlc layer is not set dividing function; Then machine terminal is once transmitted and is generated a RLC PDU and at least one MAC PDU; The packet header of said MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU, and said RLC PDU adopts the structure of transparent mode;

Then this moment, this method also comprises:

MAC PDU is resolved, sorts and be connected in series reorganization according to transmission sequence number TSN, the Length Indication that splits indication and MAC SDU, and submit to the upper strata;

RLC PDU is directly submitted to the upper strata.

14. method according to claim 10 is characterized in that,

The MAC layer and the rlc layer of machine terminal side are all set dividing function; Then machine terminal is once transmitted and is generated at least one RLC PDU and at least one MAC PDU; The packet header of said MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU; Said RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of said RLC PDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit;

Then this moment, this method also comprises:

15., it is characterized in that the packet header of said MAC PDU also comprises the indication that is used to indicate the machine terminal sign whether to exist according to each described method of claim 10 to 14, then this method also comprises:

When confirming that according to the said indication that is used to indicate the machine terminal sign whether to exist the machine terminal sign exists, read the machine terminal sign in the MAC pdu header.

16. according to each described method of claim 10 to 14, it is characterized in that the packet header of said MAC PDU also comprises the random number COUNT that is used to decipher, then this method also comprises:

MAC PDU is deciphered according to said random number COUNT at MAC.

17., it is characterized in that the packet header of said RLC PDU also comprises random number COUNT and/or the machine terminal sign that is used to decipher according to each described method of claim 10 to 14, then this method also comprises:

RLC PDU is deciphered according to said random number COUNT and/or machine terminal sign at RLC.

18. a machine terminal is characterized in that, comprising:

Generation unit is used to generate the protocol Data Unit MAC PDU of media access control protocol layer and the protocol Data Unit RLC PDU of radio link control layer;

19. machine terminal according to claim 18 is characterized in that, said generation unit is specially first generation module, or second generation module, or the 3rd generation module, or the 4th generation module;

First generation module; Be used for when the MAC of machine terminal side layer and rlc layer are not set dividing function; Once transmission generates a MAC PDU and a RLC PDU; Wherein, the packet header of MAC PDU only comprises the Length Indication of the service data unit MAC SDU of access control protocol layer, and RLC PDU adopts the structure of transparent mode;

Second generation module; Be used for not setting dividing function at the MAC of machine terminal side layer, when rlc layer was set dividing function, once transmission generated a MAC PDU and at least one RLC PDU; Wherein, The packet header of MACPDU only comprises the number of MAC SDU, and RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of RLCPDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit;

The 3rd generates module; Be used for setting dividing function at the MAC of machine terminal side layer; When rlc layer was not set dividing function, once transmission generated a RLC PDU and at least one MAC PDU, wherein; The packet header of MACPDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU, and RLC PDU adopts the structure of transparent mode;

The 4th generation module; Be used for when the MAC of machine terminal side layer and rlc layer are all set dividing function; Once transmission generates at least one MAC PDU and at least one RLC PDU, and wherein, the packet header of MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU; RLC PDU adopts the structure of Unacknowledged Mode, and the packet header of RLC PDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit.

20. according to claim 18 or 19 described machine terminal, it is characterized in that, also comprise first ciphering unit;

First ciphering unit is used at the MAC layer MAC PDU that generates being encrypted;

The packet header of the MAC PDU that then said generation unit generates also comprises the random number COUNT that is used to decipher.

21. according to claim 18 or 19 described machine terminal, it is characterized in that, also comprise second ciphering unit;

Second ciphering unit is used at rlc layer the RLC PDU that generates being encrypted;

The packet header of the RLC PDU that then said generation unit generates also comprises random number COUNT and/or the machine terminal sign that is used to decipher.

22. a network equipment is characterized in that, comprising:

Receiving element is used to receive machine terminal and carries the protocol Data Unit MAC PDU of the media access control protocol layer that sends and the protocol Data Unit RLC PDU of radio link control layer according to said grouping information through public wireless.

23. network equipment according to claim 22 is characterized in that,

If the MAC layer and the rlc layer of machine terminal side are not set dividing function; Then machine terminal is once transmitted and is only generated a MAC PDU and a RLC PDU; The packet header of said MAC PDU only comprises the Length Indication of the service data unit MAC SDU of access control protocol layer, and said RLC PDU adopts the structure of transparent mode; Then, this network equipment comprises that also a MAC handles subelement and a RLC handles subelement;

The one MAC handles subelement, is used for according to the length of MAC SDU the MAC PDU that receiving element receives being resolved and submit to the upper strata;

The one RLC handles subelement, and the RLC PDU that is used for receiving element is received directly submits to the upper strata.

24. network equipment according to claim 22 is characterized in that,

If the MAC layer of machine terminal side is not set dividing function; Rlc layer is set dividing function, and then machine terminal is once transmitted and generated a MAC PDU and at least one RLC PDU, and the packet header of said MAC PDU only comprises the number of MAC SDU; Said RLC PDU adopts the structure of Unacknowledged Mode; The packet header of said RLCPDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit, and then, this network equipment comprises that also the 2nd MAC handles subelement and the 2nd RLC handles subelement;

The 2nd MAC handles subelement, is used for according to the number of MAC SDU the MAC PDU that receiving element receives being resolved and submit to the upper strata;

The 2nd RLC handles subelement, is used for RLC PDU that the length according to data outside sequence number SN and the filling bit receives receiving element and resolves, sorts and be connected in series reorganization, and submit to the upper strata.

25. network equipment according to claim 22 is characterized in that,

The MAC layer of machine terminal side is set dividing function; Rlc layer is not set dividing function; Then machine terminal is once transmitted and is generated a RLC PDU and at least one MAC PDU, and the packet header of said MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU, and said RLC PDU adopts the structure of transparent mode; Then, this network equipment comprises that also the 3rd MAC handles subelement and the 3rd RLC handles subelement;

The 3rd MAC handles subelement, is used for according to transmission sequence number TSN, splits MAC PDU that the Length Indication of indication and MAC SDU receives receiving element and resolve, sort and be connected in series reorganization, and submit to the upper strata;

The 3rd RLC handles subelement, and the RLC PDU that is used for receiving element is received directly submits to the upper strata.

26. network equipment according to claim 22 is characterized in that,

The MAC layer and the rlc layer of machine terminal side are all set dividing function; Then machine terminal is once transmitted and is generated at least one RLC PDU and at least one MAC PDU; The packet header of said MAC PDU only comprises the transmission sequence number TSN that is used to sort, the Length Indication that splits indication and MAC SDU; Said RLC PDU adopts the structure of Unacknowledged Mode; The packet header of said RLC PDU only comprises the length of data outside the sequence number SN that is used to sort and the filling bit, and then, this network equipment comprises that also the 4th MAC handles subelement and the 4th RLC handles subelement;

The 4th MAC handles subelement, is used for according to transmission sequence number TSN, splits MAC PDU that the Length Indication of indication and MAC SDU receives receiving element and resolve, sort and be connected in series reorganization, and submit to the upper strata;

The 4th RLC handles subelement, is used for RLC PDU that the length according to data outside sequence number SN and the filling bit receives receiving element and resolves, sorts and be connected in series reorganization, and submit to the upper strata.

27., it is characterized in that the packet header of said RLC PDU or MAC PDU also comprises random number COUNT and/or the machine terminal sign that is used to decipher according to the described network equipment of claim 22 to 26, then this network equipment also comprises decryption unit;

Decryption unit is used for according to said random number COUNT and/or machine terminal sign MAC PDU or RLC PDU being deciphered.

28. a communication system is characterized in that, comprises in the claim 18 to 21 each described network equipment in each described machine terminal and claim 22 to 27.