CN102111393B - Data message transmission method and communication device - Google Patents
Data message transmission method and communication device Download PDFInfo
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- CN102111393B CN102111393B CN200910261272.6A CN200910261272A CN102111393B CN 102111393 B CN102111393 B CN 102111393B CN 200910261272 A CN200910261272 A CN 200910261272A CN 102111393 B CN102111393 B CN 102111393B
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Abstract
The embodiment of the invention relates to the communication field, provides a data message transmission method and a communication device, and aims to achieve the compatibility of an LTE (Long Term Evolution) protocol and an LTE-A (Long Term Evolution-Advanced) protocol. The transmission method comprises a step of transmitting data message of wireless layer II protocol, the data message comprises a message header and a message payload, the message header comprises a message sub-header, the message sub-header comprises information identifying the format of the data message, and content in the message sub-header corresponds to that in the message payload. The embodiment of the invention has the benefit that the data message in different formats of the layer II protocol can be distinguished through the message format of the identification layer II protocol, so that the data message in different message formats of the layer II protocol can be transmitted.
Description
Technical field
The present invention relates to the communications field, particularly about a kind of data message transmission method and communicator.
Background technology
At network to broadband, in the process of mobile development, third generation partner program (3rdGeneration Partnership Program, 3GPP) organize respectively and proposed Long Term Evolution (Long Term Evolution at Mobile Access Network, LTE) scheme is evolved universal mobile communication system land radio access web (Evolved Universal Mobile Telecommunication SystemTerritorial Radio Access Network, E-UTRAN), and at mobile core network, System Architecture Evolution (System Architecture Evolution is proposed, SAE) scheme is evolution block core net (Evolved Packet Core, EPC).
At LTE agreement and senior LTE (LTE-Advanced, LTE-A) in network coexisted situation, because prior art cannot be distinguished the message of LTE and LTE-A agreement, so cannot realize protocol Data Unit (the Protocol Data Unit of LTE agreement and LTE-A agreement radio layer 2, PDU) compatibility, for example media access control protocol (Medium Access Control, MAC), radio link control (RadioLink Control, or PDCP (Packet Data ConvergenceProtocol RLC), PDCP) compatibility.
Summary of the invention
The embodiment of the present invention provides a kind of data message transmission method and communicator, for solving the incompatible problem of data packet format of prior art LTE agreement and LTE-A agreement.
The embodiment of the present invention provides a kind of data message transmission method and communicator on the one hand, comprise: described in the data message of transmission radio layer two agreements, data message comprises heading and message payload, in described heading, comprise the sub-head of message, in described message head, comprise the information that identifies this data message form, content correspondence in described message head and described message payload.
The embodiment of the present invention also provides a kind of data message transmission method, comprising: the data message of transmission radio layer two agreements; Get involved and control the message format that mac-layer protocol uses by radio resource control RRC connection reconfiguration message indication media.
The embodiment of the present invention also provides a kind of communication equipment on the other hand, comprise: encapsulation unit, for encapsulating the data message of radio layer two agreements, described data message comprises heading and message payload, in described heading, comprise the sub-head of message, in described message head, comprise the information that identifies this data message form, content correspondence in described message head and described message payload;
Transmission unit, for transmitting the data message of radio layer two agreements of described encapsulation unit encapsulation.
According to the technical scheme of the embodiment of the present invention, by the message format of mark layer 2 protocol, can distinguish the data message of the layer 2 protocol of different-format, thereby realize the transmission of the data message of the different message formats of layer 2 protocol.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1 shows that one embodiment of the invention data message form schematic diagram;
Figure 2 shows that shown in Fig. 1 of a heading form schematic diagram in data message;
Figure 3 shows that shown in Fig. 1 another seed head form schematic diagram of heading in data message;
Figure 4 shows that described in Fig. 1 UE payload format schematic diagram in data message;
Figure 5 shows that shown in Fig. 1 another seed head form schematic diagram of heading in data message;
Figure 6 shows that another embodiment of the present invention data message form schematic diagram;
Figure 7 shows that shown in Fig. 6 of a heading form schematic diagram in data message;
Figure 8 shows that shown in Fig. 6 UE payload format schematic diagram in data message;
Figure 9 shows that shown in Fig. 6 another seed head form schematic diagram of heading in data message;
Figure 10 shows that another embodiment of the present invention data message form schematic diagram;
Figure 11 shows that shown in Figure 10 of a heading form schematic diagram in data message;
Figure 12 shows that shown in Figure 10 the form schematic diagram of logic channel payload in data message;
Figure 13 shows that shown in Figure 10 the form schematic diagram of logic channel MAC head in data message;
Figure 14 shows that shown in Figure 10 the another kind of form schematic diagram of message head in data message;
Figure 15 shows that shown in Figure 10 the another kind of form schematic diagram of logic channel payload in data message;
Figure 16 shows that another embodiment of the present invention data message form schematic diagram;
Figure 17 shows that shown in Figure 16 the form schematic diagram of the son in heading in data message;
Figure 18 shows that shown in Figure 16 MAC payload part form schematic diagram in data message;
Figure 19 shows that shown in Figure 16 another seed head form schematic diagram of heading in data message;
Figure 20 shows that a kind of communication apparatus structure schematic diagram that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of data message transmission method, comprising:
The data message of transmission radio layer two agreements; Described data message comprises heading and message payload, comprises the sub-head of message in described heading, in described message head, comprises the information that identifies this data message form, content correspondence in described message head and described message payload.
In embodiments of the present invention, when receiving after the message of transmission, judge whether the current network equipment can process the message format of this data message, if can process, carry out respective handling, for example, this network equipment can only be processed the message of LTE agreement, judges its flag or particular value after receiving above-mentioned message, belong to the message of LTE protocol format, carry out the processing of corresponding LTE message; If this network equipment can only be processed the message of LTE-A agreement, judge its flag or particular value after receiving above-mentioned message, belong to the message of LTE-A protocol format, carry out the processing of corresponding LTE message.
By above-described embodiment, by identifying the message format of wireless layer 2 protocol, can distinguish the data message of the wireless layer 2 protocol of different-format, thereby realize the message of compatible LTE agreement, LTE-A agreement or successive versions agreement.Further, can pass through at Logic Channel Identifier (Logical Channel ID, LCID) field writes particular value or identifies the message that just can utilize existing field to distinguish heterogeneous networks by utilizing at existing reserved field, and implementation complexity is low; And by the heading in payload being added to media access control (Medium Access Control, MAC) heading, can just can obtain by the process of one parsing heading the data of respective user equipment (User Equipment, UE).
Embodiment of the present invention method all can be used for the message of the media intervention control protocol of radio layer 2, the message of radio link control or the message of PDCP, only describe as an example of MAC message example in the present embodiment, other type message and the present embodiment are similar to be repeated no more.
Above-mentioned radio layer 2 agreements comprise media intervention control (MAC) agreement, wireless link control (RLC) agreement or packet data convergence (PDCP) agreement.In the embodiment of the present invention, the main message take MAC agreement, as example describes, should not be construed the restriction to the embodiment of the present invention.
The form of described mark message comprises, identifies the form that described message is LTE agreement, or is the form of LTE-A agreement.It should be understood that the form of described mark message can also comprise the form of the senior Long Term Evolution protocol version of follow-up support, such as LTE-A+ agreement etc.
In an embodiment provided by the invention, transmit the data message of form as shown in Figure 1.Be illustrated in figure 1 the structural representation of the MAC PDU based on different UEs data aggregate.This MAC PDU comprises MAC header (head) and MAC Payload (payload).Comprise at MAC header the information that identifies this message format.In MAC Payload, comprise relay station (RN, Relay Node) and the data of multiple UE, this MAC PDU may comprise multiple repeated link MAC Control Element, the MAC SDU of multiple RN, multiple UEPayload and Padding (filling) field, wherein fills field and can add 0.MAC header is made up of one or more MAC sub-header (son head), and MAC sub-header is corresponding with MAC SDU, MACControl Element, UE Payload or Padding.
In embodiments of the present invention, a reserved bit position in MAC sub-header can be defined as to message format flag I (Indication), the effect of this flag is: indicating this MAC message is LTE protocol package form or LTE-A protocol package form.L field (Length field) expands to 12 or 20bit, the 5bit of former LCID is integrated with to Length field; In this MAC sub-header, need additionally to comprise the indication field of UEID.
As shown in Figure 2, Fig. 2 (a) is the message format of the MAC sub-header of 12 bits, Fig. 2 (b) is the message format of 20 bit MAC sub-header, in each MAC sub-header, comprising: reserved field R (Reserved); Message format flag I, now I is set to 1, represents that this MACsub-header is used to indicate UE payload, and namely this MAC PDU belongs to the form of LTE-A agreement, in this MAC head, does not comprise LCID field, and the 5bit of LCID is merged as L field; Field E (Extensionfield), is used to indicate whether current son head is last height head; Flag bit F field (Formatfield), is used to indicate ensuing L field; L field is Length Indication, and L field length is 12bit or 20bit; UE ID, being used to indicate corresponding UE Payload part is to belong to which UE, UE ID byte-aligned, concrete length is relevant with used UE mark.In the present embodiment, the 2nd reserved bit position R in MAC sub-header is set as to message format flag.Similarly, also the 1st reserved bit position R can be realized to same function.
As shown in Figure 3, Fig. 3 (a) for L field be the message format of the MAC sub-header of 7 bit long, Fig. 3 (b), for L field is the message format of the MAC sub-header of 15 bit long, in each MACsub-header, comprising: reserved field R; Message format flag I, now the value of I is 0, in the time of flag I=0, this MAC PDU is the message in LTE agreement; Field E, is used to indicate whether current son head is last height head; Logic Channel Identifier LCID; Flag bit F, being used to indicate ensuing L field length is 7bit or 15bit; Length Indication field L, is used to indicate subscriber equipment MAC service data unit and/or subscriber equipment MAC controls first length.Fig. 3 (c) is the message format with the MAC sub-header of fixed size repeated link MAC controlelement, and this MAC sub-header comprises four fields: reserved field R; Message format flag I, now I is set to 0; E field and LCID.
As shown in Figure 4, be the form schematic diagram of UE payload in MAC PDU in Fig. 1, UE payload is made up of UE MACheader and UE MAC Control Element and/or UE MAC SDU.UE MAC header has comprised multiple UE MAC sub-header, UE MAC sub-header and UE MAC Control Element or UE MAC SDU correspondence, UE MAC Control Element or UE MAC SDU are the data from same UE, and are identified by the UE ID in MAC sub-header corresponding to this UE payload.
In another embodiment, can particular value be set in the Logic Channel Identifier field of MAC heading, identify the form of this message with this particular value.For the data message of form shown in Fig. 1, can be in MAC header the form of LCID field reserved value indication message, the reserved value of this field can be 01011 to 11001, for example, can in above-mentioned scope 01011 to 11001, get the form of LCID=01011 indication message, this MAC sub-header the UE payload of corresponding indication, namely this MAC PDU belongs to the form of LTE-A agreement, as (a) in Fig. 5 with (b), this MAC sub-header comprises: two retain position R; Field E; LCID, LCID=01011; Flag F; Field L; UE ID.
In another embodiment provided by the invention, the data message of form shown in transmission diagram 6, Figure 6 shows that the structural representation of the MAC PDU based on different UEs data aggregate.This MAC PDU comprises MAC header and MAC Payload, comprises at MAC header the information that identifies this message format.In MAC Payload, comprise the data of RN and multiple UE, this MAC PDU may comprise the MAC SDU of multiple repeated link MAC ControlElement, multiple RN, multiple UE payload and Padding field.MAC header is made up of one or more MAC sub-header, and MAC sub-header is corresponding with MAC SDU, MAC ControlElement, UE Payload or Padding.
In embodiments of the present invention, in UE payload, the information of UE MAC header is added in the MAC sub-header that this UE payload is corresponding.Receiving terminal just can obtain UE ControlElement or UE MAC SDU in the time carrying out one parsing like this.
In embodiments of the present invention, a reserved bit position in MAC sub-header can be defined as to message format flag I, the form that the form that is used to indicate this MAC message belongs to LTE agreement still belongs to the form of LTE-A agreement.
In the present embodiment, the 1st reserved bit position in MAC sub-header is set as to MAC message format flag.Similarly, other reserved bit positions also can be used for realizing same function.
As shown in Figure 7, MAC sub-header comprises: reserved field R; Message format flag I, the value of this I is 1, represents the message that this MAC message is LTE-A protocol format, MAC sub-header is used to indicate UE payload; Field E1, whether be used to indicate current MAC sub-header is last height head; Field E2, whether the LCID field being used to indicate is thereafter last the LCID field in this sub-head; Logic Channel Identifier LCID, corresponding to UE SDU or UEControl Element in the UE payload part of this MAC sub-header indication; Flag bit F, being used to indicate ensuing L field is 7bit or 15bit.Length position indication L, is used to indicate subscriber equipment MAC service data unit and/or subscriber equipment MAC and controls the information of first length; It is to belong to which UE that UE ID indicates corresponding UE Payload part, UE ID byte-aligned, and concrete length is relevant with used UE mark.
In the time of flag I=0, this MAC PDU is LTE protocol massages, and message format is identical with message format in LTE system.
As shown in Figure 8, be the form schematic diagram of UE payload in data message shown in Fig. 6, this UE payload is made up of multiple UE Control Element and/or UE MAC SDU.All these UE ControlElement/MAC SDU are the data from same UE, and are identified by the UE ID in MACsub-header corresponding to this UE payload.
As optional embodiment, can also there is particular value in the specific fields of MAC heading, for identifying the form of this message; Then encapsulate described message according to the form of described message.
For the data message of form shown in Fig. 8, can in MAC header, LCID field reserved value indicate message format, the reserved value of this field can be 01011 to 11001, for example, can in above-mentioned scope 01011 to 11001, get the form of LCID=01011 indication message, the corresponding UE payload of indicating of this MAC sub-header institute, namely this MAC PDU belongs to the form of LTE-A agreement, as shown in Figure 9, this MAC sub-header comprises: reserved field R; Field E1, whether be used to indicate current MAC sub-header is last height head; Field E2, whether the LCID field being used to indicate is thereafter last the LCID field in this sub-head; Logic Channel Identifier LCID, wherein first LCID=01011, what represent this MAC sub-header indication is UE payload, and follow-up LCID distinguishes UE SDU or UE ControlElement in corresponding UE payload part; Flag bit F, being used to indicate ensuing L field is 7bit or 15bit.Length position indication L; It is to belong to which UE that UE ID indicates corresponding UE Payload part, UE ID byte-aligned, and concrete length is relevant with used UE mark.In the time that LCID is set as the original value in LTE agreement, indication be that this MACPDU is the message of LTE protocol format, the MAC message of this MAC message format and LTE agreement is identical.
In the present embodiment, by identifying the message format of wireless layer 2 protocol, can distinguish the data message of the wireless layer 2 protocol of different-format, thereby realize the message of compatible LTE agreement, LTE-A agreement or successive versions agreement; By writing particular value in LCID field or identifying the message that just can utilize existing field to distinguish heterogeneous networks by utilizing at existing reserved field, implementation complexity is low; And by the heading in UE payload being added to media access control heading, can just can obtain by the process of one parsing heading the data of corresponding UE.
In another embodiment provided by the invention, transmit the data message of form as shown in figure 10, Figure 10 shows that the structural representation of the MAC PDU of the polymerization based on Different Logic channel.The data that comprise many logic channels of multiple UE in MAC PDU, this MAC PDU comprises MAC header and MAC payload, comprise at MAC header the information that identifies this message format, in MAC payload, can comprise one or more in MAC SDU, logic channel payload (LC payload) and the Padding field of repeated link MAC ControlElement, RN.In each MAC sub-header, one of them reserved bit position is defined as to message format flag I, be used to indicate the message that this MAC message is LTE protocol format or LTE-A protocol format.MAC sub-header can be corresponding with MAC Control Element, RN MAC SDU, LC payload or filling field.
In the present embodiment, the 2nd reserved bit position in MAC sub-header is set as to message format flag, other reserved bit positions also can be used for realizing same function.As shown in figure 11, Figure 11 (a) for L field be the message format of the MAC sub-header of 7 bit long, Figure 11 (b) for L field be the message format of the MAC sub-header of 15 bit long, in MAC PDU, MAC sub-header comprises: reserved field R; Message format flag I, if I=1, what represent this MAC sub-header indication is logic channel payload; If I=0, represents RN SDU or repeated link Control Element that this MAC sub-header indicates; Field E, whether be used to indicate current MAC sub-header is last height head; Logic Channel Identifier LCID; Flag bit F, is used to indicate the length of ensuing L field; Length position indication L.Figure 11 (c) is the message format with the MAC sub-header of fixed size repeated link MAC control element, and this MAC sub-header comprises four fields: reserved field R; Message format flag I, now I is set to 0; E field and LCID.
As shown in figure 12, this LC payload is made up of LC MAC header and LC MACSDU or LC MAC Control Element the form of the payload of LC shown in Figure 10.LC MAC header comprises again multiple LC MACsub-header, and LC MAC sub-header indicates respectively LC MAC SDU or LC MAC ControlElement.LC MAC SDU in logic channel payload has identical LCID, and is indicated by the LCID in MAC sub-header corresponding to this logic channel payload, so do not need to carry the information of LCID in LC MAC header again.
As shown in figure 13, this LC MAC sub-header comprises the form of above-mentioned LC MAC sub-header: reserved field R; Format identification (FID) position F1, if F1=0 is F2/L/UE id field after field E, as Figure 13 (a) with (b); If F1=1 is R/UEID after E, as Figure 13 (c); Field E, whether be used to indicate current MAC sub-header is last height head; Flag bit F2, the length that is used to indicate ensuing L field is 12bit or 20bit; Length Indication L, is used to indicate logic channel MAC service data unit and/or logic channel MAC controls first length.
For the data message of form as shown in figure 10, the information of LC MAC header in logic channel payload can be added in the MAC sub-header that this logic channel payload is corresponding.
As shown in figure 14, MAC header is made up of MAC sub-header, and MAC sub-header can correspondingly indicate MAC Control Element, RN MAC SDU, LC payload or padding field.The 1st reserved bit position in MAC sub-header can be set as to message format flag.Similarly, other reserved bit positions also can be used for realizing same function.This MAC sub-header comprises: reserved field R; Message format flag I, now I=1; Field E1, whether be used to indicate current MAC sub-header is last height head; Logic Channel Identifier LCID, for representing the LCID of the logic channel payload that this MAC sub-header is corresponding; Format identification (FID) position F1, if F1=0 is F2/L/UE id field after field E, as shown in Figure 14 (a); If F1=1 is R/UE ID after field E, as shown in Figure 14 (b); Field E2, whether the UE ID being used to indicate after E2 is last UE ID, if E2=0 is not last UE ID, is new one to take turns R/F1/E2 after this UE ID; If E2=1, is last UEID, after this UE ID, this MAC sub-header finishes; Flag bit F2, the length that is used to indicate ensuing L field is 12bit or 20bit.Length Indication L, is used to indicate logic channel MAC service data unit and/or logic channel MAC controls first length.
In the time that this MAC PDU message of reserved bit bit-identify is the message of LTE agreement, the form of this message, as existing LTE agreement MACP DU message, does not repeat them here.
In the time that the information of LC MAC header in logic channel payload is added in the MAC sub-header that this logic channel payload is corresponding, described logic channel payload format as shown in figure 15, because indication information has all been placed in MAC sub-header, therefore, logic channel payload is made up of multiple LC MAC SDU or LCControl Element.LC MAC SDU in logic channel payload has identical LCID, and is indicated by the LCID in MAC sub-header corresponding to this logic channel payload.
In another embodiment provided by the invention, transmit the data message of form as shown in figure 16, at this MAC PDU, the data of repeated link Control Element, RN and UE are directly carried out multiplexing, this MAC PDU comprises MAC header and MAC payload, MAC header comprises multiple MAC sub-header, MAC payload packets containing in MAC SDU, UE Control Element, UE MAC SDU and the Padding field of repeated link MAC Control Element, RN one or more.MAC SDU, UE Control Element, UE MAC SDU or the filling field correspondence of MAC sub-header and repeated link MACControl Element, RN.
In this MAC sub-header, one of them reserved bit position can be defined as to packet format flag I, be used to indicate the message format that this MAC message belongs to LTE agreement or belongs to LTE-A agreement; If value is 1, represent that this sub-head is to be used to indicate UE MAC SDU or UE Control Element, needs additionally to comprise the indication field of UE ID in this sub-head.
In the present embodiment, the 2nd reservation bit position in MAC sub-header can be set as to packet format flag.Similarly, other reservation bit positions also can be used for realizing same function.As shown in figure 17, MAC sub-header can comprise: reserved field R; Message format flag I, this duration is 1, represents that this sub-head is to be used to indicate UE MAC SDU or UE Control Element; Field E, is used to indicate whether current son head is last height head; Logic channel LCID; Flag bit F, being used to indicate ensuing L field length is 7bit or 15bit, as Figure 17 (a) and (b); L field, is used to indicate subscriber equipment MAC service data unit and/or subscriber equipment MAC controls first length; UE ID indicates corresponding UE MAC SDU or UE MAC Control Element to belong to which UE, UE ID byte-aligned, and concrete length is relevant with used UE mark.In Figure 17 (c), MAC sub-header comprises four fields: reserved field R; Message format flag I, now I is set to 0; E field; LCID and UE ID.In the time that message identification position I is 0, MAC PDU message is LTE protocol massages form.
In MAC PDU shown in Figure 16, MAC payload part structure as shown in figure 18, in MAC SDU, UE Control Element, UE MAC SDU and the Padding field of MAC payload by repeated link MAC Control Element, RN, one or more form, and the MACsub-header in these parts and MAC header is corresponding one by one.
As shown in figure 19, as optional embodiment, the length of LCID can be expanded, utilize the data of the LCID mark different UEs of expansion, substitute UE ID, the message format of this MAC PDU is identical with the form of above-mentioned Figure 16, just different in MAC sub-header, MAC header is made up of MAC sub-header, and MAC sub-header can correspondingly indicate repeated link MAC Control Element, RN MACSDU, UE Control Element, UE MAC SDU or Padding field.In the present embodiment, the 2nd reserved bit position in MAC sub-header is set as to packet format flag.Similarly, other reserved bit positions also can be used for realizing same function.
This MAC sub-header comprises: reserved field R; Message format flag I, this duration is 1; Field E, is used to indicate whether current son head is last height head; Logic Channel Identifier LCID, the length of LCID can be expanded as (5+8*n) bit, and wherein n is non-zero positive integer; Flag bit F, being used to indicate ensuing L field length is 7bit or 15bit, as Figure 19 (a) with (b); L field, is used to indicate subscriber equipment MAC service data unit and/or subscriber equipment MAC controls first length.
In the time of flag I=0, represent the MAC PDU message format that this MAC PDU message format is traditional LTE agreement, do not repeat them here.
In the time of flag I=1, the form of MAC payload, with identical shown in above-mentioned Figure 18, does not repeat them here.
In another embodiment provided by the invention, in the time of transport layer 2 data message, can be by Radio Resource control (Radio Resource Control, RRC) connect the form that reconfiguration message indicates the message of wireless layer 2 protocol to use, can determine by reconfiguration message the length of Logic Channel Identifier field, utilize the UE data corresponding to Logic Channel Identifier field of expansion.Can realize by the mode of upper-layer configured the different-format of identification MAC message, for example use RRC to connect the extension length of the MAC-MainConfig cell indication LCID in reconfiguration message, in MAC-MainConfig cell, increase the description of a LCID length:
MAC-LCID-Size ENUMERATED{len 5bits，len 13bits，len 21bits，spare1，spare2}
Wherein, the effect of MAC-LCID-Size is the length of LCID field in indication MAC sub-header, len 5bits represents to use the LCID form of 5 bit lengths, len 13bits represents to use 13 bit length forms, and len 21bits represents to use 21 bit length forms, spare1 and spare2 represent reserved Length Indication.
As shown in figure 20, a kind of communicator providing for the embodiment of the present invention, comprise: encapsulation unit 2010, for encapsulating the data message of radio layer two agreements, described data message comprises heading and message payload, in described heading, comprise the sub-head of message, in described message head, comprise the information that identifies this data message form, content correspondence in described message head and described message payload; Transmission unit 2020, for transmitting the data message of radio layer two agreements that described encapsulation unit 2010 encapsulates.
This encapsulation unit 2010 can also be used for, at described message head, message format flag I is set, or Logic Channel Identifier field settings identification data message format is set.
In the embodiment of the present invention, encapsulation unit can encapsulate according to the form of the data message in above-mentioned Fig. 1 to Figure 19, and the form of packaged concrete data message, as described in above-described embodiment, is not repeating at this.
The beneficial effect of the embodiment of the present invention is, has solved the compatibility issue of LTE-A agreement and LTE protocol layer 2 message formats; Introduce after relay station for LTE-A agreement, proposed the message format of several repeated link layer 2 packet polymerization, improved the efficiency of transmission of LTE-A agreement; Identify the message that just can utilize existing field to distinguish different agreement by the particular value in LCID field or by utilizing at existing reserved field, implementation complexity is low; And by the heading in payload is added to MAC heading, can just can obtain by the process of one parsing heading the data of corresponding UE.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program completes, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection range being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a data message transmission method, is characterized in that, comprising:
The data message of transmission radio layer two agreements;
Described data message comprises heading and message payload, comprises the sub-head of message in described heading, in described message head, comprises the information that identifies this data message form, content correspondence in described message head and described message payload; The form of described data message comprises: Long Term Evolution LTE protocol format, the senior LTE-A protocol format of Long Term Evolution or LTE-A evolution protocol format;
Described message payload comprises: repeated link control element and/or relay station service data unit;
Identify and process this data message according to the information of this data message form of described mark.
2. method according to claim 1, is characterized in that, the information of the identification data message format comprising in described message head is: message format flag; Or the information of the identification data message format comprising in described message head is Logic Channel Identifier field settings.
3. method according to claim 1, is characterized in that, described message payload comprises user equipment (UE) payload, and described message head is corresponding with described UE payload.
4. method according to claim 3, is characterized in that, described UE payload comprises that subscriber equipment media are got involved control UE MAC heading, UE MAC controls unit and/or UE MAC service data unit;
Described UE MAC heading comprises Logic Channel Identifier and is used to indicate UE MAC service data unit and/or UE MAC the information of controlling first length.
5. method according to claim 3, is characterized in that, described UE payload comprises that UE MAC controls unit and/or UE MAC service data unit;
The message corresponding with described UE payload head also comprises and is used to indicate in UE payload UE MAC service data unit and/or UE MAC controls first Logic Channel Identifier and length information.
6. method according to claim 1, is characterized in that, described message payload comprises logic channel payload, and described message head is corresponding with described logic channel payload.
7. method according to claim 6, is characterized in that, described logic channel payload comprises that logic channel MAC heading, logic channel MAC service data unit and/or logic channel MAC control unit;
Described logic channel MAC heading comprises UE mark and is used to indicate logic channel MAC service data unit and/or logic channel MAC controls the information of first length.
8. method according to claim 6, is characterized in that, described logic channel payload comprises that logic channel MAC service data unit and/or logic channel MAC control unit;
Message corresponding to described logic channel payload head comprises and is used to indicate in logic channel payload logic channel MAC service data unit and/or logic channel MAC controls first UE mark and length information.
9. according to the arbitrary described method of claim 1-8, it is characterized in that, described radio layer two agreements comprise MAC agreement, wireless link control rlc protocol or packet data convergence PDCP agreement.
10. a communicator, is characterized in that comprising:
Encapsulation unit, for encapsulating the data message of radio layer two agreements, described data message comprises heading and message payload, comprises the sub-head of message in described heading, in described message head, comprise the information that identifies this data message form, content correspondence in described message head and described message payload; The form of described data message comprises: Long Term Evolution LTE protocol format, the senior LTE-A protocol format of Long Term Evolution or LTE-A evolution protocol format; Described message payload comprises: repeated link control element and/or relay station service data unit;
Transmission unit, for transmitting the data message of radio layer two agreements of described encapsulation unit encapsulation, so that this data message is identified and processed in the unit of respective handling according to the information of this data message form of described mark.
11. communicators according to claim 10, is characterized in that, described encapsulation unit is also at described message head, message format flag I being set, or Logic Channel Identifier field settings identification data message format is set.
Priority Applications (1)
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| AU2015395543B2 (en) * | 2015-05-15 | 2019-04-11 | Huawei Technologies Co., Ltd. | Terminal, base station and scheduling request transmission method |
| CN106209318B (en) * | 2016-07-18 | 2019-07-02 | 重庆邮电大学 | A kind of MAC protocol data transmission method for TD-LTE |
| CN109644373B (en) * | 2017-08-11 | 2021-04-27 | Oppo广东移动通信有限公司 | Data transmission method and related product |
| WO2019028866A1 (en) | 2017-08-11 | 2019-02-14 | Oppo广东移动通信有限公司 | Data transmission method and related product |
| EP3614726B1 (en) | 2017-08-11 | 2021-09-01 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method and related product |
| CN109756441B (en) * | 2017-08-22 | 2021-08-10 | 成都鼎桥通信技术有限公司 | Multi-protocol compatible processing method and device |
| AU2018407841A1 (en) | 2018-02-06 | 2020-07-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission control method and related product |
| CN111586803B (en) * | 2019-02-15 | 2021-09-07 | 华为技术有限公司 | Communication method and related equipment |
| WO2022041150A1 (en) * | 2020-08-28 | 2022-03-03 | 华为技术有限公司 | Communication method and apparatus |
| CN112468510B (en) * | 2020-12-11 | 2022-12-06 | 中国科学院上海高等研究院 | Transmission method and equipment based on SMT protocol and ALC protocol compatibility |
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