CN101997597B - Frame sequence number extension method and system for enhanced dedicated transport channel frame protocol - Google Patents
Frame sequence number extension method and system for enhanced dedicated transport channel frame protocol Download PDFInfo
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Abstract
The invention discloses a frame sequence number extension method for an enhanced dedicated transport channel frame protocol. The frame sequence number extension method comprises the following steps of: receiving a PDU (Protocol Data Unit ) by a node B, setting an FSN (Frame Sequence Number) of a corresponding E-DCH (Enhanced Dedicated Channel) data frame according to a configured FSN extension field and a code rule for writing FSN values, and transmitting the E-DCH data frame to a SRNC (Serving Radio Network Controller); and decoding the FSN by the SRNC according to the position of the configured FSN extension field and the code rule of the FSN values. The invention also correspondingly discloses a frame sequence number extension system for the enhanced dedicated transport channel frame protocol. Because the invention can provide more FSN for distribution, the phenomenon of FSN repeating in a window area is avoided, and data loss is avoided. In addition, the invention increases the FSN extension field for extending the FSN by utilizing remaining fields or remaining extension fields, and has smaller change to the structure of the E-DCH data frame.
Description
Technical field
The present invention relates to field of wireless communication, relate in particular to a kind of major-minor carrier wave high speed uplink packet access (HighSpeed Uplink Packet Access, HSUPA) in system, the frame sequence number extension method of enhanced dedicated transport channel frame protocol and system.
Background technology
In existing system, enhanced data channel (Enhanced Dedicated Transport Channel, E-DCH) Frame belongs to data frame type, for up direction, indicates whether to be used by high-level signaling.E-DCH Frame is defined as two kinds of structures: Class1 and type 2.If comprise media access control enhancement mode sublayer protocol Data Unit (Medium Access control-enhanced sublayer ProtocolData Unit, MAC-es PDU), type of service 1 structure; If comprise media access control modified model sublayer protocol Data Unit (Medium Access control-improved sublayer Protocol DataUnit, MAC-is PDU), type of service 2 structures.
Fig. 1 and Fig. 2 are respectively in prior art, the frame structure schematic diagram of E-DCH data frame type 1 and type 2, as depicted in figs. 1 and 2, E-DCH data frame type 1 and type 2 except the data cell type comprising different, all comprise two parts: head and payload, and all comprise following territory:
1, a CRC territory
" CRC check code " territory is to be applied to a remaining frame part (from 0 of 0 of the first byte last byte to the end, and 0 of comprising this last byte, do not comprise after a CRC 4,7 of the second byte to 4) the corresponding check code that generates formula of check code.The length that is used for " a CRC check code " territory of the uplink data frames of E-DCH is 7 bits or 11 bits, 7 bits are from 7 of bits to 1 of bit in first byte of E-DCH Frame frame head, 11 bits are except comprising in first byte from 7 of bits to 1 of bit, have also comprised in second byte from 7 of bits to 4 of bits.It should be noted that, be that 0 of bit is last bit in a byte from 7 of bits to 0 of bit to the sequence of bit in byte here.
2, frame type instruction
" frame type instruction " territory is used for representing that this frame is Frame or control frame, the length in " frame type " territory is a bit, 0 of the bit that is arranged in first byte of E-DCH Frame frame head, E-DCH Frame belongs to uplink data frames, and " frame type instruction " territory is designated as " 0 ".
3, number of frames (Frame Sequence Number, FSN)
The FSN of " number of frames " domain representation E-DCH Frame, for being transmitted each time E-DCH Frame, the FSN that generate 4 is just calculated as follows:
FSN=(FSN+1) mould 16
Wherein, the scope of FSN value is 0～15.The length in " number of frames " territory is 4 bits, and second byte that is arranged in E-DCH Frame frame head is from 3 of bits to 0 of bit;
4, number of sub-frames
The instruction of " number of sub-frames " territory has how many subframes in this frame.Notice that a subframe also comprises head part and payload part.The span in " number of sub-frames " territory is 1～16, the binary coding of value 1 is " 0000 ", value 16 binary coding is " 1111 ", and " number of sub-frames " length of field is 4 bits, and the 3rd byte that is arranged in E-DCH Frame frame head is from 3 of bits to 0 of bit;
5, Connection Frame Number
For E-DCH, " Connection Frame Number " territory instruction mixed automatic retransfer request (HARQ) process is correctly decoded the radio frames of data.For E-DCH, this territory is except for the object that reorders, and Connection Frame Number (CFN) and subframe numbers can be used as dynamic deferred measurement.Span is 0～255.The length in " Connection Frame Number " territory is 8 bits, and the 4th byte that is arranged in E-DCH Frame frame head is from 7 of bits to 0 of bit.
6, HARQ number of retransmissions
The HARQ number of retransmissions for the payload of successfully decoding has been indicated in " HARQ number of retransmissions " territory, or for HARQ decoding failure scenarios, and this territory instruction is when the HARQ number of retransmissions being used that HARQ decodes while being unsuccessfully detected, and span is 0～15.The value in this territory is 13 to show that the real data retransmitting is not suitable as the input of exterior ring power control, and the value in this territory is 15 to show that Node B can not computed HARQ number of retransmissions.First subframe numbers " " the 5th byte that territory is arranged in E-DCH Frame frame head is from 6 of bits to 3 of bits for HARQ number of retransmissions; Second subframe numbers " " territory is arranged in after first MAC-e head of E-DCH Frame frame head first byte from 6 of bits to 3 of bits to HARQ number of retransmissions; Other frame numbers " " territory is positioned at the position of E-DCH Frame frame head to HARQ number of retransmissions, until reach the HARQ number of retransmissions that comprises all MAC-es PDU in this subframe.
7, subframe numbers
The instruction of " subframe numbers " territory receives the subframe numbers that payload is positioned at.Except the object for reordering, subframe numbers and control frame number may be used as dynamic delay and measure.The span 0～4 in " subframe numbers " territory, length is 3 bits; The 5th byte that first subframe numbers is arranged in E-DCH Frame frame head is from 2 of bits to 0 of bit; Second subframe numbers is arranged in after first MAC-e of E-DCH Frame frame head or MAC-i head first byte from 2 of bits to 0 of bit; Other subframe numbers are arranged in after the upper MAC-e of E-DCH Frame frame head or MAC-i head first byte from 2 of bits to 0 of bit, until comprise all subframe numbers.
8, residue is extended
The new cell (Information Elements IEs) of " residue is extended " territory instruction backwards compatibility mode is by the position increasing.The length in this territory is 0～32 byte.
9, payload CRC
" payload CRC " territory is the CRC check of payload.This CRC is the remainder that is applied to payload, 0 of the bit of the payload before from 7 of the bits of first byte of payload to payload CRC, and length is 16 bits.
On Iub mouth (interface between Node B and service wireless network controller (SRNC)) and Iur mouth (interface between SRNC and control RNC), by using E-DCH Frame, E-DCH Frame Protocol is realized MAC-es PDU or the transmission of MAC-is PDU from Node B to SRNC.When media access control improved protocol data cell (MAC-i PDU) or media access control, to strengthen protocol Data Unit (MAC-e PDU) received, this protocol Data Unit is demultiplexed back into media access control data flow (MAC-d stream), and then these MAC-d streams once send in individual transmission carrying with E-DCH uplink data frames Class1 or E-DCH upstream data frame type 2.
SRNC receives after E-DCH Frame, from this Frame frame head, decode the FSN of this Frame, observe the situation that under single carrier, transmission network layer data transmits, such as whether there being loss and the delay of E-DCHE-DCH Frame, because the time delay meeting of frequent out-of-sequence delivery and long period causes the congested of transport network layer, affect whole system and carry out.
Along with technical development, (this technology makes terminal on two carrier waves, to send data to two ZAP, thereby uplink data rate is doubled) wish to be introduced into existing system, but, in the situation that the data of two carrier waves do not transmit in same E-DCH Frame, if use current E-DCH Frame, to there is following point: in existing E-DCH Frame, the length in FSN territory is 4 bits, be that distributable frame number is 16, and use two ZAP can make uplink data rate be doubled, so, probably occur that E-DCH Frame to be transmitted in a window area exceedes 16, in a window area, there is the phenomenon that FSN repeats, easily cause loss of data, be unfavorable for that data correctly transmit.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of frame sequence number extension method and system of enhanced dedicated transport channel frame protocol, in the situation that the data of two carrier waves do not transmit in same E-DCH Frame, can improve the accuracy that data transmit, and less to the change of existing E-DCH data frame structure.
For achieving the above object, technical scheme of the present invention is achieved in that
A frame sequence number extension method for enhanced dedicated transport channel frame protocol configures the position of number of frames FSN extension field and fills in the coding rule of FSN value on Node B and service wireless network controller SRNC, comprising:
Node B receives after the protocol Data Unit PDU of self terminal, according to configuration FSN extension field position and fill in the coding rule of FSN value, the FSN of corresponding enhanced data channel E-DCH Frame is set, and the E-DCH Frame of described setting is sent to SRNC;
Described SRNC receives after the described E-DCH Frame from Node B, solves the FSN of described E-DCH Frame according to the position of FSN extension field of configuration and the coding rule of FSN value.
Described Node B sends the E-DCH Frame arranging and is specially to SRNC:
What be connected with Node B is to control radio network controller CRNC, and E-DCH Frame is sent to CRNC by Node B, then by CRNC, described E-DCH Frame is transmitted to SRNC by Iur mouth;
That be connected with Node B is SRNC, and Node B directly sends to SRNC by Iub mouth by E-DCH Frame.
The PDU that described Node B receives is that media access control strengthens protocol Data Unit MAC-e PDU, and corresponding E-DCH Frame is E-DCH data frame type 1;
The PDU that described Node B receives is media access control improved protocol data cell MAC-i PDU, and corresponding E-DCH Frame is E-DCH data frame type 2.
Described according to configuration FSN extension field position and fill in the coding rule of FSN value, the FSN that corresponding E-DCH Frame is set is:
According to the position calculation FSN value of FSN extension field;
According to the coding rule of filling in FSN value, the FSN value of calculating is filled in the FSN territory and FSN extension field of corresponding E-DCH.
Described Node B receives after the protocol Data Unit PDU of self terminal, also comprises step: described PDU demultiplexing is generated to corresponding sublayer PDU;
Corresponding E-DCH Frame also comprises the sublayer PDU that described demultiplexing generates.
SRNC solves the FSN detection of loss of frames that also comprises that step: SRNC solves described in using after FSN.
A kind of number of frames expanding system of enhanced dedicated transport channel frame protocol, comprise Node B and SRNC, wherein, Node B comprises that configuration parameter provides unit, PDU receiving element, E-DCH Frame setting unit, E-DCH Frame transmitting element, SRNC comprises that configuration parameter provides unit, E-DCH Frame receiving element, FSN acquiring unit
The configuration parameter of described Node B provides unit, is used to Node B the position of FSN extension field is provided and fills in the coding rule of FSN value;
Described PDU receiving element, for receiving after the PDU of self terminal, notice E-DCH Frame setting unit;
Described E-DCH Frame setting unit, for the position of the FSN extension field that unit provides being provided according to the configuration parameter of Node B and filling in the coding rule of FSN value, arranges the FSN of corresponding E-DCH Frame;
Described E-DCH Frame transmitting element, for being sent to SRNC by the E-DCH Frame of E-DCH Frame setting unit setting;
The configuration parameter of described SRNC provides unit, is used to SRNC the position of FSN extension field is provided and fills in the coding rule of FSN value;
Described E-DCH Frame receiving element, for receiving the E-DCH Frame from Node B, and is sent to FSN acquiring unit by the E-DCH Frame of reception;
Described FSN acquiring unit, after the E-DCH Frame receiving from E-DCH Frame receiving element, the coding rule that the position of the FSN extension field that unit provides is provided and fills in FSN value according to the configuration parameter of SRNC solves the FSN of described E-DCH Frame.
Described Node B also comprises PDU demultiplexing unit,
Described PDU receiving element, also, for receiving after the PDU of self terminal, is sent to PDU demultiplexing unit by the PDU of reception;
Described PDU demultiplexing unit, for generating corresponding sublayer PDU by the PDU demultiplexing from PDU receiving element;
Described E-DCH Frame setting unit, also adds E-DCH Frame for the sublayer PDU that PDU demultiplexing unit is generated.
Described SRNC also comprises detecting unit,
Described FSN acquiring unit, also for being sent to detecting unit by the FSN solving;
Described detecting unit, also the FSN detection of loss of frames from FSN acquiring unit for basis.
The frame sequence number extension method of enhanced dedicated transport channel frame protocol of the present invention and system, data at two carrier waves do not transmit in same E-DCH Frame, be that FSN is while arranging speed, by spread F SN territory, how distributable FSN is provided, thereby avoid occurring the phenomenon that FSN repeats in a window area, avoid loss of data, improve the accuracy that data transmit; And the present invention has just increased the FSN extension field for spread F SN with residue field or residual extension territory, so change less to E-DCH data frame structure.
Brief description of the drawings
Fig. 1 is in prior art, the frame structure schematic diagram of E-DCH data frame type 1;
Fig. 2 is in prior art, the frame structure schematic diagram of E-DCH data frame type 2;
Fig. 3 is the frame sequence number extension method schematic flow sheet of enhanced dedicated transport channel frame protocol of the present invention;
Fig. 4 is the number of frames extend system architecture schematic diagram of enhanced dedicated transport channel frame protocol of the present invention;
Fig. 5 is the frame structure schematic diagram of E-DCH data frame type 1 in the embodiment of the present invention 1;
Fig. 6 is the frame structure schematic diagram of E-DCH data frame type 1 in the embodiment of the present invention 2;
Fig. 7 is the frame structure schematic diagram of E-DCH data frame type 2 in the embodiment of the present invention 3;
Fig. 8 is the frame structure schematic diagram of E-DCH data frame type 2 in the embodiment of the present invention 4;
Fig. 9 is the handling process schematic diagram of the embodiment of the present invention 5 Node B;
Figure 10 is the handling process schematic diagram of the embodiment of the present invention 6 Node B;
Figure 11 is SRNC handling process schematic diagram in the embodiment of the present invention 7.
Embodiment
Basic thought of the present invention is: the data at two carrier waves do not transmit in same E-DCH Frame, when FSN arranges speed, by spread F SN territory, provides how distributable FSN.
Below in conjunction with accompanying drawing, the enforcement of technical scheme is described in further detail.
The present invention increases a FSN extension field in E-DCH data frame structure, and the placement location of FSN extension field is residue or the residual extension in E-DCH data frame structure.4 of " FSN " territory in original E-DCH Frame form new (4+FSN extension field figure place) position FSN with FSN extension field figure place (at least one position) coding of joining together, represent the number of frames of the E-DCH Frame sending each time.FSN arranges rule: for E-DCH Frame transmission each time, the X position FSN that this Frame is corresponding calculates according to formula (1):
FSN=(FSN+1) mould 2
x(1)
In formula (1), X is greater than 4 integer, and the FSN on the equal sign left side represents the FSN value that current needs distribute, and the FSN on equal sign the right represents the FSN value of distributing recently.
Fig. 3 is the frame sequence number extension method schematic flow sheet of enhanced dedicated transport channel frame protocol of the present invention, and as shown in Figure 3, the frame sequence number extension method of enhanced dedicated transport channel frame protocol of the present invention generally comprises following steps:
Step 31: Node B receives MAC-e PDU or the MAC-i PDU of self terminal.
Here, Node B generally receives MAC-e PDU or the MAC-i PDU of self terminal on eating dishes without rice or wine.
After terminal receives a MAC-e PDU or a MAC-i PDU, this PDU can be demultiplexed back into MAC-d stream, and then this each MAC-d stream is being sent to RNC on transmission bearer separately by corresponding E-DCH data frame type 1 (MAC-e) or type 2 (MAC-i).
Step 32: Node B arranges the FSN of corresponding E-DCH Frame.
Here, the PDU that Node B receives is MAC-e PDU, and corresponding E-DCH Frame is E-DCH data frame type 1; The PDU that Node B receives is MAC-i PDU, and corresponding E-DCH Frame is E-DCH data frame type 2.
In the present invention, the position of pre-configured number of frames FSN extension field and fill in the coding rule of FSN value in Node B.Determine that the position of FSN extension field can determine the figure place of FSN extension field.
For the E-DCH Frame being transmitted each time, generate the FSN of oneself, and for E-DCH Frame transmission each time, the X position FSN that this E-DCH Frame is corresponding should calculate according to formula (1), wherein, X is the figure place of FSN extension field and the figure place in FSN territory (value is 4) sum.
Node B calculates after FSN value according to formula (1), also needs the FSN value of calculating, according to the coding rule of filling in FSN value of configuration, to fill in FSN territory and the FSN extension field of corresponding E-DCH Frame.
Same as the prior art, E-DCH Frame of the present invention also should comprise the sublayer PDU that the MAC-ePDU that receives from terminal or MAC-i PDU demultiplexing generate, i.e. MAC-es PDU or MAC-is PDU.
Step 33: Node B sends E-DCH Frame to SRNC.
It should be noted that, if that be connected with Node B is CRNC, this E-DCH Frame is sent to CRNC by Node B, and CRNC also needs, by Iur mouth, this E-DCH Frame is transmitted to SRNC; If that be connected with Node B is SRNC, Node B directly sends to SRNC by Iub mouth by this E-DCH Frame.
Step 34:SRNC receives after the E-DCH Frame from Node B, from the FSN territory of E-DCH Frame and FSN extension field, solves FSN value.
Concrete, SRNC receives E-DCH data frame type 1 (MAC-e) or the type 2 (MAC-i) from comprising of Node B of corresponding MAC-d stream in independent transmission bearer transmission.
Generally, can in SRNC and Node B, configure the position of FSN extension field simultaneously and fill in the coding rule of FSN value, so, SRNC receives after the E-DCH Frame from Node B, from the FSN territory of E-DCH Frame and FSN extension field, solve FSN value according to pre-configured coding rule, be retrieved as the FSN of E-DCH Frame.
The FSN detection of loss of frames solving described in step 35:SRNC uses.
It is prior art that SRNC uses FSN detection of loss of frames, and no further details to be given herein.
In sum, the present invention newly increases a FSN extension field in E-DCH data frame structure, when Node B is received MAC-e terminal or MAC-i data from eating dishes without rice or wine, on an Iub or Iur transmission channel bearing, Node B fills in FSN value FSN territory and the FSN extension field of E-DCH Frame according to certain coding rule, E-DCH data frame packet is containing MAC-es PDU or the MAC-is PDU of this MAC-e PDU or the generation of MAC-i PDU demultiplexing, send to SRNC, observe with a better visual angle situation that under two carrier case, transmission network layer data transmits to SRNC, to detect the loss of E-DCH Frame and the problem of delay.
Fig. 4 is the number of frames extend system architecture schematic diagram of enhanced dedicated transport channel frame protocol of the present invention, as shown in Figure 4, the number of frames expanding system of enhanced dedicated transport channel frame protocol of the present invention comprises: Node B 41 and SRNC 42, wherein, Node B 41 comprises that configuration parameter provides unit 411, PDU receiving element 412, E-DCH Frame setting unit 413, E-DCH Frame transmitting element 414, SRNC42 comprises that configuration parameter provides unit 421, E-DCH Frame receiving element 422, FSN acquiring unit 423
The configuration parameter of Node B 41 provides unit 411, is used to Node B 41 position of FSN extension field is provided and fills in the coding rule of FSN value;
PDU receiving element 412, for receiving after the PDU of self terminal, notice E-DCH Frame setting unit 413;
E-DCH Frame setting unit 413, for the position of the FSN extension field that unit 411 provides being provided according to the configuration parameter of Node B 41 and filling in the coding rule of FSN value, arranges the FSN of corresponding E-DCH Frame;
E-DCH Frame transmitting element 414, is sent to SRNC 42 for the E-DCH Frame that E-DCH Frame setting unit 413 is arranged;
The configuration parameter of SRNC 42 provides unit 421, is used to SRNC the position of FSN extension field is provided and fills in the coding rule of FSN value;
E-DCH Frame receiving element 422, for receiving the E-DCH Frame from Node B 41, and is sent to FSN acquiring unit 423 by the E-DCH Frame of reception;
FSN acquiring unit 423, for after the E-DCH Frame of receiving from E-DCH Frame receiving element 422, the coding rule that the position of the FSN extension field that unit 421 provides is provided and fills in FSN value according to the configuration parameter of SRNC 42 solves the FSN of described E-DCH Frame.
Node B 41 also comprises PDU demultiplexing unit 415,
PDU receiving element 412, also, for receiving after the PDU of self terminal, is sent to PDU demultiplexing unit 415 by the PDU of reception;
PDU demultiplexing unit 415, for generating corresponding sublayer PDU by the PDU demultiplexing from PDU receiving element 412;
E-DCH Frame setting unit 413, also adds E-DCH Frame for the sublayer PDU that PDU demultiplexing unit 415 is generated.
SRNC 42 also comprises detecting unit 424,
FSN acquiring unit 423, also for being sent to detecting unit 424 by the FSN solving;
Detecting unit 424, also the FSN detection of loss of frames from FSN acquiring unit 423 for basis.
Set scene: terminal is used two ZAP (this technology makes terminal to send data on two carrier waves, thereby uplink data rate is doubled).Be main carrier by the carrier wave that comprises High-Speed Dedicated Physical Control Channel (High Speed-Dedicated Physical Control Channel, HS-DPCCH) in two carrier waves, another one carrier wave remaining in two carrier waves is subcarrier.
Embodiment 1
The present embodiment provides the frame structure of E-DCH data frame type 1 in a kind of the present invention, and Fig. 5 is the frame structure schematic diagram of E-DCH data frame type 1 in the embodiment of the present invention 1, as shown in Figure 5:
Change 1 bit in a residue field in existing E-DCH uplink data frames Class1 (7 of the bits in the 5th byte) into FSN extension field, for E-DCH Frame transmission each time, 5 FSN that this Frame is corresponding will calculate according to formula (2):
FSN=(FSN+1) mould 2
5(2)
For 5 FSN that calculate, low 4 place values can be filled up in corresponding 4 in FSN territory, high 1 place value is filled up to FSN extension field; Also low 1 place value can be filled up to FSN extension field, high 4 place values are filled up to FSN territory, and concrete coding rule is pre-configured on Node B and SRNC.FSN territory and FSN extension field are joined together to encode and are formed 5 FSN, represent the number of frames of the E-DCH Frame sending each time.
Embodiment 2
The present embodiment provides the frame structure of E-DCH data frame type 1 in a kind of the present invention, and Fig. 6 is the frame structure schematic diagram of E-DCH data frame type 1 in the embodiment of the present invention 2, as shown in Figure 6:
Change two bits in a residual extension territory in existing E-DCH uplink data frames Class1 into FSN extension field, for E-DCH Frame transmission each time, 6 FSN that this Frame is corresponding calculate according to formula (3):
FSN=(FSN+1) mould 2
6(3)
For 6 FSN that calculate, low 4 place values can be filled up in corresponding 4 in FSN territory, high 2 place values are filled up to FSN extension field; Also low 2 place values can be filled up to FSN extension field, high 4 place values are filled up to FSN territory, and concrete coding rule is pre-configured on Node B and SRNC.FSN territory and FSN extension field are joined together to encode and are formed 6 FSN, represent the number of frames of the E-DCH Frame sending each time.
Embodiment 3
The present embodiment provides the frame structure of E-DCH data frame type 2 in a kind of the present invention, and Fig. 7 is the frame structure schematic diagram of E-DCH data frame type 2 in the embodiment of the present invention 3, as shown in Figure 7:
Change 1 bit in a residue field in existing E-DCH upstream data frame type 2 (7 of the bits in E-DCH Frame frame head in penultimate byte) into FSN extension field, for E-DCH Frame transmission each time, 5 FSN that this Frame is corresponding will calculate according to formula (2), i.e. FSN=(FSN+1) mould 2
5.
For 5 FSN that calculate, low 4 place values can be filled up in corresponding 4 in FSN territory, high 1 place value is filled up to FSN extension field; Also low 1 place value can be filled up to FSN extension field, high 4 place values are filled up to FSN territory, and concrete coding rule is pre-configured on Node B and SRNC.FSN territory and FSN extension field are joined together to encode and are formed 5 FSN, represent the number of frames of the E-DCH Frame sending each time.
Embodiment 4
The present embodiment provides the frame structure of E-DCH data frame type 2 in a kind of the present invention, and Fig. 8 is the frame structure schematic diagram of E-DCH data frame type 2 in the embodiment of the present invention 4, as shown in Figure 8:
Change two bits in a residual extension territory in existing E-DCH upstream data frame type 2 into FSN extension field, for E-DCH Frame transmission each time, 6 FSN that this Frame is corresponding will calculate according to formula (3), i.e. FSN=(FSN+1) mould 2
6.
For 6 FSN that calculate, low 4 place values can be filled up in corresponding 4 in FSN territory, high 2 place values are filled up to FSN extension field; Also low 2 place values can be filled up to FSN extension field, high 4 place values are filled up to FSN territory, and concrete coding rule is pre-configured on Node B and SRNC.FSN territory and FSN extension field are joined together to encode and are formed 6 FSN, represent the number of frames of the E-DCH Frame sending each time.
Embodiment 5
The present embodiment has used the E-DCH data frame structure of the embodiment of the present invention 1 or embodiment 3, specifically Node B processing of the present invention is illustrated, Fig. 9 is the handling process schematic diagram of the embodiment of the present invention 5 Node B, and as shown in Figure 9, the handling process of embodiment 5 Node B comprises the following steps:
Step 91: Node B receives MAC-e PDU or MAC-i PDU from terminal.
Step 92: the E-DCH data frame structure according in embodiment 1 or embodiment 3 corresponding to Node B filled in corresponding FSN value.
Concrete, Node B receives a MAC-e protocol Data Unit from terminal, uses the frame structure of the E-DCH uplink data frames Class1 in embodiment 1 to fill in corresponding FSN value, in 4 of original FSN territory and residue field one, be that FSN extension field merges coding, form 5 FSN.Or Node B (main or auxiliary) from certain carrier wave receives a MAC-i protocol Data Unit, use the frame structure of the E-DCH upstream data frame type 2 in embodiment 3 to fill in corresponding FSN value, in 4 of original FSN territory and residue field one, be that FSN extension field merges coding, form 5 FSN.
If current FSN value is 6, calculate new FSN according to formula (2), calculate according to FSN=(FSN+1) mould 32.
New FSN equals (6+1) mould 32, and the value of new FSN is 7.
Be set to the above-mentioned FSN value calculating according to 5 FSN in certain coding rule E-DCH Frame.Be filled up in corresponding 4 in FSN territory if coding rule is low 4 place values, high 1 place value is filled up to FSN extension field, and the binary value that fill in FSN territory is " 0111 ", and the binary value that FSN extension field is filled in is " 0 "; If or coding rule is that low 1 place value is filled up to FSN extension field, high 4 place values are filled up to FSN territory, the binary value that fill in FSN territory is " 0011 ", and the binary value that FSN extension field is filled in is " 1 ".FSN territory and FSN extension field are joined together to encode and are formed 5 FSN, represent the number of frames of the E-DCH Frame sending each time.
E-DCH Frame also comprises MAC-es PDU or the MAC-is PDU after MAC-e PDU or the MAC-i PDU demultiplexing receiving from terminal.
Step 93: Node B sends E-DCH Frame to SRNC.
If that be connected with Node B is CRNC, this E-DCH Frame is sent to CRNC by Node B, and CRNC also needs, by Iur mouth, this E-DCH Frame is transmitted to SRNC; If the SRNC being connected with Node B, this E-DCH Frame is directly sent to SRNC by Node B.
Embodiment 6
The present embodiment has used the E-DCH data frame structure of the embodiment of the present invention 2 or embodiment 4, specifically Node B processing of the present invention is illustrated, Figure 10 is the handling process schematic diagram of the embodiment of the present invention 6 Node B, and as shown in figure 10, the handling process of embodiment 6 Node B comprises the following steps:
Step 101: Node B receives MAC-e PDU or MAC-i PDU from terminal.
Step 102: Node B is filled in corresponding FSN value according to the E-DCH data frame structure in embodiment 2 or embodiment 4.
Node B receives a MAC-e protocol Data Unit from terminal, use the structural representation 2 of the E-DCH uplink data frames Class1 in embodiment 2 to fill in corresponding FSN value, in 4 of original FSN territory and residual extension territory two, FSN extension field merges coding, forms 6 FSN.Or Node B receives a MAC-i protocol Data Unit from terminal, use the structural representation 2 of the E-DCH upstream data frame type 2 in embodiment 2 to fill in corresponding FSN value, in 4 of original FSN territory and residual extension territory two, FSN extension field merges coding, forms 6 FSN.
If current FSN value is 61, calculate new FSN according to formula (3):
FSN=(FSN+1) mould 64
New FSN equals (61+1) mould 64, and the value of new FSN is 62.
Be set to the above-mentioned FSN of calculating value according to 6 FSN in certain coding rule E-DCH Frame.Be filled up in corresponding 4 in FSN territory if coding rule is low 4 place values, high 2 place values are filled up to FSN extension field, and the binary value that fill in FSN territory is " 1110 ", and the binary value that FSN extension field is filled in is " 11 "; If or coding rule is that low 2 place values are filled up to FSN extension field, high 4 place values are filled up to FSN territory, the binary value that fill in FSN territory is " 1111 ", and the binary value that FSN extension field is filled in is " 10 ".FSN territory and FSN extension field are joined together to encode and are formed 6 FSN, represent the number of frames of the E-DCH Frame sending each time.
E-DCH Frame also comprises MAC-es PDU or the MAC-is PDU after MAC-e PDU or the MAC-i PDU demultiplexing receiving from terminal.
Step 103: Node B sends E-DCH Frame to SRNC.
If that be connected with Node B is CRNC, this E-DCH Frame is sent to CRNC by Node B, and CRNC also needs, by Iur mouth, this E-DCH Frame is transmitted to SRNC; If that be connected with Node B is SRNC, this E-DCH Frame is directly sent to SRNC by Node B.
Embodiment 7
The present embodiment is processed and is illustrated SRNC of the present invention.Figure 11 is SRNC handling process schematic diagram in the embodiment of the present invention 7, and as shown in figure 11, in the embodiment of the present invention 7, SRNC handling process comprises the following steps:
Step 111:SRNC receives the E-DCH Frame from Node B.
Step 112:SRNC solves FSN value according to pre-configured coding rule from the FSN territory of E-DCH Frame and FSN extension field, is retrieved as the FSN of E-DCH Frame.
Step 113:SRNC uses FSN detection of loss of frames.
It is prior art that SRNC uses FSN detection of loss of frames, and no further details to be given herein.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (8)
1. a frame sequence number extension method for enhanced dedicated transport channel frame protocol, is characterized in that, configures the position of number of frames FSN extension field and fill in the coding rule of FSN value on Node B and service wireless network controller SRNC, and the method comprises:
Node B receives after the protocol Data Unit PDU of self terminal, calculate FSN value according to the figure place of the FSN extension field of configuration and in the FSN value of distributing recently, and according to the coding rule of filling in FSN value, the FSN value of calculating is filled in the FSN territory and FSN extension field of corresponding E-DCH, complete the setting of the FSN value of corresponding enhanced data channel E-DCH Frame, and the E-DCH Frame of described setting is sent to SRNC;
Described SRNC receives after described E-DCH Frame, solves the FSN of described E-DCH Frame according to the position of FSN extension field of configuration and the coding rule of FSN value; Wherein,
X position FSN is according to FSN=(FSN+1) mould 2
xcalculate, wherein X is greater than 4 integer, and the FSN on the equal sign left side represents the FSN value that current needs distribute, and the FSN on equal sign the right represents the FSN value of distributing recently.
2. frame sequence number extension method according to claim 1, is characterized in that, described Node B sends the E-DCH Frame arranging and is specially to SRNC:
What be connected with Node B is to control radio network controller CRNC, and E-DCH Frame is sent to CRNC by Node B, then by CRNC, described E-DCH Frame is transmitted to SRNC by Iur mouth;
That be connected with Node B is SRNC, and Node B directly sends to SRNC by Iub mouth by E-DCH Frame.
3. frame sequence number extension method according to claim 1, is characterized in that,
The PDU that described Node B receives is that media access control strengthens protocol Data Unit MAC-e PDU, and corresponding E-DCH Frame is E-DCH data frame type 1;
The PDU that described Node B receives is media access control improved protocol data cell MAC-i PDU, and corresponding E-DCH Frame is E-DCH data frame type 2.
4. frame sequence number extension method according to claim 3, is characterized in that, described Node B receives after the protocol Data Unit PDU of self terminal, also comprises step: described PDU demultiplexing is generated to corresponding sublayer PDU;
Corresponding E-DCH Frame also comprises the sublayer PDU that described demultiplexing generates.
5. frame sequence number extension method according to claim 4, is characterized in that, SRNC solves the FSN detection of loss of frames that also comprises that step: SRNC solves described in using after FSN.
6. the number of frames expanding system of an enhanced dedicated transport channel frame protocol, it is characterized in that, this system comprises Node B and SRNC, wherein, Node B comprises that configuration parameter provides unit, PDU receiving element, E-DCH Frame setting unit, E-DCH Frame transmitting element, SRNC comprises that configuration parameter provides unit, E-DCH Frame receiving element, FSN acquiring unit
The configuration parameter of described Node B provides unit, is used to Node B the position of FSN extension field is provided and fills in the coding rule of FSN value;
Described PDU receiving element, for receiving after the PDU of self terminal, notice E-DCH Frame setting unit;
Described E-DCH Frame setting unit, for the FSN value calculating FSN value that the figure place of the FSN extension field that unit provides is provided according to the configuration parameter of Node B and is distributing recently, and according to the coding rule of filling in FSN value, the FSN value of calculating is filled in the FSN territory and FSN extension field of corresponding E-DCH, complete the setting of the FSN value of corresponding enhanced data channel E-DCH Frame;
Described E-DCH Frame transmitting element, for being sent to SRNC by the E-DCH Frame of E-DCH Frame setting unit setting;
The configuration parameter of described SRNC provides unit, is used to SRNC the position of FSN extension field is provided and fills in the coding rule of FSN value;
Described E-DCH Frame receiving element, for receiving the E-DCH Frame from Node B, and is sent to FSN acquiring unit by the E-DCH Frame of reception;
Described FSN acquiring unit, after the E-DCH Frame receiving from E-DCH Frame receiving element, the coding rule that the position of the FSN extension field that unit provides is provided and fills in FSN value according to the configuration parameter of SRNC solves the FSN of described E-DCH Frame; Wherein,
X position FSN is according to FSN=(FSN+1) mould 2
xcalculate, wherein X is greater than 4 integer, and the FSN on the equal sign left side represents the FSN value that current needs distribute, and the FSN on equal sign the right represents the FSN value of distributing recently.
7. number of frames expanding system according to claim 6, is characterized in that, described Node B also comprises PDU demultiplexing unit,
Described PDU receiving element, also, for receiving after the PDU of self terminal, is sent to PDU demultiplexing unit by the PDU of reception;
Described PDU demultiplexing unit, for generating corresponding sublayer PDU by the PDU demultiplexing from PDU receiving element;
Described E-DCH Frame setting unit, also adds E-DCH Frame for the sublayer PDU that PDU demultiplexing unit is generated.
8. number of frames expanding system according to claim 7, is characterized in that, described SRNC also comprises detecting unit,
Described FSN acquiring unit, also for being sent to detecting unit by the FSN solving;
Described detecting unit, also the FSN detection of loss of frames from FSN acquiring unit for basis.
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| US6418143B1 (en) * | 1997-06-17 | 2002-07-09 | Qualcomm Incorporated | Extended range sequence numbering for selective repeat data transmission protocol |
| CN101001130A (en) * | 2007-01-23 | 2007-07-18 | 华为技术有限公司 | Method and device for monitoring Iub interface packet-loss rate |
| CN101374040A (en) * | 2007-08-24 | 2009-02-25 | 大唐移动通信设备有限公司 | Method and apparatus for implementing multi-carrier district high speed data business transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418143B1 (en) * | 1997-06-17 | 2002-07-09 | Qualcomm Incorporated | Extended range sequence numbering for selective repeat data transmission protocol |
| CN101001130A (en) * | 2007-01-23 | 2007-07-18 | 华为技术有限公司 | Method and device for monitoring Iub interface packet-loss rate |
| CN101374040A (en) * | 2007-08-24 | 2009-02-25 | 大唐移动通信设备有限公司 | Method and apparatus for implementing multi-carrier district high speed data business transmission |
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