CN103516467B - The transfer format selecting method and system of a kind of wireless transmission channel - Google Patents
The transfer format selecting method and system of a kind of wireless transmission channel Download PDFInfo
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Abstract
The invention discloses a kind of transfer format selecting method of wireless transmission channel and system, the multiple subchannel transmission format sets for being first depending on cooperative transmission channel calculate the transformat of cooperative transmission channel, the transformat of wherein each cooperative transmission channel corresponds to the transformat per sub-channels, in format selection process, the BO of more sub-channels of whole cooperative transmission channel is added, calculate the BO of whole cooperative transmission channel, then corresponding co-channel transformat is found according to BO, so as to find out corresponding transformat combination, the transformat combination that transformat combination and miscoordination transmission channel further according to the cooperative transmission channel are found out, draw the transformat of each transmission channel of wireless transmission channel, this method execution efficiency is higher.
Description
Technical field
The present invention relates to a kind of 3-G (Generation Three mobile communication system), the transformat choosing of more particularly to a kind of wireless transmission channel
Selection method and system.
Background technology
Existing MAC layer（Medium Access Control/ Media Access Control, medium education）
Cooperative transmission channel treatment processes, all it is by the SDU of every sub-channels in cooperative transmission channel（Service Data Unit,
Service Data Unit）BO（Full name is Buffer Occupancy, and buffer occupancy, its implication is on MAC protocol layer
RLC（Radio Link Control, wireless spread-spectrum technology）The first-class data to be sent of each logic channel of protocol layer
Byte number（Or bit numbers）, the BO numerical value told to MAC layer in each transmission cycle by rlc layer）Count respectively, Ran Hougen
According to the BO numbers of every sub-channels form is transmitted according to the subchannel of transformat choice set one by one（Transport
Format, abbreviation TF）Selection, finally just draw required TFS Transport Format Set.
This existing transfer format selecting method and system are during the transformat of selection channel, computational complexity
It is higher, it is necessary to substantial amounts of CPU processing times be consumed, with 3-G (Generation Three mobile communication system)（3G, 3rd Generation）No
Disconnected development, can not effectively meet the needs of user, it is therefore desirable to which one kind can effectively reduce transformat selection algorithm
Complexity, reduce transformat and select consumed time, for the reserved time enough of SS later operation.
The content of the invention
The main object of the present invention is to provide the transfer format selecting method and system of a kind of wireless transmission channel, Neng Gouyou
Effect improves the efficiency of transformat selection.
In order to achieve the above object, the present invention proposes a kind of transfer format selecting method of wireless transmission channel, and it is special
Sign is, comprises the following steps：
Step 101, the transmission request BO for obtaining the current TTI of all subchannels of cooperative transmission channel is added, as collaboration
The transmission request BO of transmission channel；
Step 102, BO numerical value pair is asked in inquiry table 1, the transmission for finding the cooperative transmission channel with being calculated in step 101
The co-channel transformat answered（co-TF）, the table 1 is co-channel TFS Transport Format Set；
Step 103, inquiry table 3, find all containing the co-channel transformat found in step 102（co-TF）'s
Transformat combination（TFC）, the table 3 is to substitute cooperative transmission according to the corresponding relation of table 2 with co-channel transformat to believe
Transport format combination set after the transformat of each subchannel in road, the table 2 are co-channel transformat and each subchannel
Transformat mapping table；
Step 104, a current TTI of miscoordination transmission channel transmission request BO is obtained, in the miscoordination transmission channel
Corresponding TFS Transport Format Set（TFS）In find corresponding transformat（TF）；
Step 105, inquiry table 3, all transformats containing the miscoordination transmission channel found in step 104 are found
（TF）Transformat combination（TFC）；
Step 106, step 104 and 105 are repeated for all miscoordination transmission channels, until finding out all non-associations
With transformat combination corresponding to transmission channel；
Step 107, the transformat combination found out respectively from cooperative transmission channel and miscoordination transmission channel（TFC）
In, find all existing transformat combination in the lookup result of all transmission channels（TFC）Transmission as current TTI
Format combination；
Step 108, each transmission channel according to selected current TTI transformat combination（TFC）In respective transmission
Form（TF）Transformat as the current TTI of each transmission channel.
Further, this three tables of the table 1, table 2 and table 3 are preset in a communications device, before the step 101
Also include：The configuration parameter of three tables and each transmission channel is allocated to together by communication equipment when establishing each transmission channel
MAC module in communication equipment.
Further, also include before the step 101：When establishing each transmission channel, communication equipment is only by each transmission
The configuration parameter of channel is allocated to the MAC module in communication equipment, generates this three, table 1, table 2 and table 3 in real time by MAC module
Table.
Further, described generation table 1, table 2 and this three tables of table 3 in real time comprise the following steps that：
Step 401, the parameter configuration and transport format combination set of each transmission channel are obtained, includes the transmission of each transmission channel
The transport format combination set of format set parameter configuration and each transmission channel；
Step 402, from the transport format combination set of each transmission channel, the biography of each subchannel of cooperative transmission channel is calculated
Transport format combination, each transformat combination is corresponded to the transformat of a cooperative transmission channel, so as to draw co-channel
Transformat（co-TF）With the transformat of each subchannel（TF）Mapping table, hereinafter referred to as table 2；
Step 403, according to each transformat of cooperative transmission channel（TF）The calculation formula of size obtains co-channel and passed
Transport format collection, hereinafter referred to as table 1, the formula are：
Wherein coTBSmFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）Transport block set（TBS）Greatly
It is small；subTBSm:NoFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）The phase of corresponding No sub-channels
The transport block set corresponding to transformat answered（TBS）Size, No spans are 1-n, and wherein n is each of cooperative transmission channel
The number of subchannel；
Step 404, by the transmission of each subchannel of cooperative transmission channel in the transport format combination set obtained in step 401
Form（TF）According to the corresponding relation of table 2 by co-channel transformat（co-TF）It is replaced and draws table 3, the table 3 is use
Co-channel transformat（co-TF）Transport format combination set after the transformat of each subchannel corresponding to replacement.
Further, methods described is used for all wireless devices for meeting 3GPP standards.
The invention also provides a kind of transformat of wireless transmission channel selects system, it is characterised in that including：
First processing module, it is added for obtaining the current TTI of all subchannels transmission request BO of cooperative transmission channel,
BO is asked in transmission as cooperative transmission channel；
Second processing module, for inquiry table 1, find the biography of the cooperative transmission channel with being calculated in first processing module
Defeated request co-channel transformat corresponding to BO numerical value（co-TF）, the table 1 is co-channel TFS Transport Format Set；
3rd processing module, for inquiry table 3, find all containing the co-channel found in Second processing module transmission
Form（co-TF）Transformat combination（TFC）, the table 3 is to be replaced with co-channel transformat according to the corresponding relation of table 2
For the transport format combination set after the transformat of each subchannel of cooperative transmission channel, the table 2 is that co-channel transmits lattice
The transformat mapping table of formula and each subchannel；
Fourth processing module, BO is asked in the transmission for obtaining a current TTI of miscoordination transmission channel, in the miscoordination
TFS Transport Format Set corresponding to transmission channel（TFS）In find corresponding transformat（TF）；
5th processing module, for inquiry table 3, find all containing the miscoordination found in fourth processing module transmission
The transformat of channel（TF）Transformat combination（TFC）；
6th processing module, for using fourth processing module and the 5th processing module for all miscoordination transmission channels
Processing procedure is repeated, until finding out transformat combination corresponding to all miscoordination transmission channels；
7th processing module, for the transformat group found out respectively from cooperative transmission channel and miscoordination transmission channel
Close（TFC）In, find all existing transformat combination in the lookup result of all transmission channels（TFC）As current
TTI transformat combination；
8th processing module, for causing transformat combination of each transmission channel according to selected current TTI（TFC）In
Respective transformat（TF）Transformat as the current TTI of each transmission channel.
Further, this three tables of the table 1, table 2 and table 3 are preset in a communications device, and the system also includes：
First determining module, for when establishing each transmission channel by communication equipment by three tables and the configuration parameter of each transmission channel
The MAC module being allocated to together in communication equipment.
Further, the system also includes：Second determining module, for when establishing each transmission channel, communication equipment
The MAC module only configuration parameter of each transmission channel being allocated in communication equipment, table 1, the and of table 2 are generated by MAC module in real time
3 three tables of table.
Further, second determining module specifically includes：
First configuration module, for obtaining the parameter configuration and transport format combination set of each transmission channel, including each transmission
The TFS Transport Format Set parameter configuration of channel and the transport format combination set of each transmission channel；
Second configuration module, for from the transport format combination set of each transmission channel, it is each to calculate cooperative transmission channel
The transformat combination of subchannel, by the transformat of the corresponding cooperative transmission channel of each transformat combination, so that
Go out co-channel transformat（co-TF）With the transformat of each subchannel（TF）Mapping table, hereinafter referred to as table 2；
3rd configuration module, for each transformat according to cooperative transmission channel（TF）The calculation formula of size is assisted
Cochannel TFS Transport Format Set, hereinafter referred to as table 1, the formula are：
Wherein coTBSmFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）Transport block set（TBS）Greatly
It is small；subTBSm:NoFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）The phase of corresponding No sub-channels
The transport block set corresponding to transformat answered（TBS）Size, No spans are 1-n, and wherein n is each of cooperative transmission channel
The number of subchannel；
4th configuration module, for cooperative transmission channel in the transport format combination set that will be obtained in the first configuration module
The transformat of each subchannel（TF）According to the corresponding relation of table 2 by co-channel transformat（co-TF）It is replaced and draws
Table 3, the table 3 are with co-channel transformat（co-TF）Transmission lattice after the transformat of each subchannel corresponding to replacement
Formula combination of sets.
Further, the system is used for all wireless devices for meeting 3GPP standards.
The operation principle of the present invention is as follows：In the new method that the present invention uses, transformat choice set is carried out first pre-
First optimization calculates, multiple subchannel transmission format sets according to cooperative transmission channel（Transport Format, abbreviation TF）Meter
Calculate the transformat of cooperative transmission channel（co-TF）, wherein, the transformat of each cooperative transmission channel（co-TF）It is corresponding
In the transformat of every sub-channels（Transport Format, abbreviation TF）, in format selection process, will entirely cooperate with
The BO numbers of more sub-channels of transmission channel are added, and calculate the BO numbers of whole co-channel.Corresponding co- is found according to BO numbers
TF, further according to co-TF and the TF mapping relations of subchannel, draw the TF of every sub-channels.In this way, in cooperative transmission
In the presence of channel, the selection course of the TFS Transport Format Set of whole MAC layer greatly optimizes, and reduces computational complexity.
This method can be used for all wireless devices for meeting 3GPP standards.
In the present invention all " transmission channel " all referring to dedicated transmission channel, " business " in the present invention refers to one
What the terminal and network of user was set up transmits the data transfer carried out by dedicated transmission channel, and type of service generally comprises electricity
Road domain（CS）Business and packet domain（PS）Business.
Brief description of the drawings
For clearer explanation technical scheme, the required accompanying drawing used in being described below to embodiment
It is briefly described, it is clear that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the transfer format selecting method of wireless transmission channel of the present invention；
Fig. 2 is the flow chart that table 1, table 2 and table 3 are obtained in the present invention.
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 carried out clear, complete
Whole description, it is clear that described embodiment be only the present invention part of the embodiment, the embodiment being not all of, based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Example, belongs to the scope of protection of the invention.
In the method, communication equipment is the various transmission channels for including cooperative transmission channel of defined in 3GPP standards
Combination establishes co-channel TFS Transport Format Set respectively according to all transmission channel configuration parameters（Transport Format Set,
Abbreviation TFS, hereinafter referred to as table 1）, co-channel transformat（co-TF）With the transformat of each subchannel（TF）Corresponding relation
Table（Hereinafter referred to as table 2）, with co-channel transformat（co-TF）Transmission after the transformat of each subchannel corresponding to replacement
Format combination set（Transport Format Combination, abbreviation TFC, hereinafter referred to as table 3）Three tables, this three tables
Information is used for the selection that communication equipment MAC is transmitted format combination.
When communication equipment, which is prepared as a user, establishes the transmission channel comprising cooperative transmission channel, MAC is corresponded to
The modes of this three tables have two kinds：First way is that this three tables are preset in a communications device, is establishing transmission letter
The configuration parameter of three tables and each transmission channel is allocated to MAC module together by communication equipment during road；The second way is
When establishing transmission channel, the configuration parameter of each transmission channel is only allocated to MAC module by communication equipment, by MAC module according to
Corresponding method generates corresponding three tables in real time.
As shown in figure 1, the present invention proposes a kind of transfer format selecting method of wireless transmission channel, transmission channel（Bag
Include cooperative transmission channel and miscoordination transmission channel）After setting up, each TTI is being handled（Transmission Time
Interval, Transmission Time Interval）Data transfer when, the transformat combination of the TTI is carried out according to below step：
Step 101, all subchannels of cooperative transmission channel are obtained（Here all subchannels are substantially all that collaboration passes
Defeated channel）Current TTI transmission request BO is added, and BO is asked in the transmission as cooperative transmission channel；
Step 102, BO numerical value pair is asked in inquiry table 1, the transmission for finding the cooperative transmission channel with being calculated in step 101
The co-channel transformat answered（co-TF）, the table 1 is co-channel TFS Transport Format Set；
Step 103, inquiry table 3, find all containing the co-channel transformat found in step 102（co-TF）'s
Transformat combination（TFC）, the table 3 is to substitute cooperative transmission according to the corresponding relation of table 2 with co-channel transformat to believe
Each subchannel in road（" each subchannel " refers to each subchannel of cooperative transmission channel）Transformat after transformat group
Intersection（" transport format combination set " refers to the biography for corresponding to each transmission channel of cooperative transmission channel and miscoordination transmission channel
Transport format combination collection）, the table 2 is co-channel transformat and the transformat mapping table of each subchannel；
Step 104, a miscoordination transmission channel is obtained（Here in agreement regulation, for the transmission channel of user's foundation
In, it is inevitable at least one miscoordination transmission channel to be present simultaneously, such as carrying out the DCCH DCCH of signalling
Deng）Current TTI transmission request BO, in TFS Transport Format Set corresponding to the miscoordination transmission channel（TFS）In find corresponding biography
Transport format（TF）；
Step 105, inquiry table 3, all transformats containing the miscoordination transmission channel found in step 104 are found
（TF）Transformat combination（TFC）；
Step 106, step 104 and 105 are repeated for all miscoordination transmission channels, until finding out all non-associations
With transformat combination corresponding to transmission channel；
Step 107, the transformat combination found out respectively from cooperative transmission channel and miscoordination transmission channel（TFC）
In, find all existing transformat combination in the lookup result of all transmission channels（TFC）Transmission as current TTI
Format combination（Here because the TFC in table 3 is complete group of co-channel transformat and the transformat of miscoordination transmission channel
Close, therefore TFC and the 2nd TFC checked out checked out for the 1st time certainly exists an identical TFC, in 3GPP agreements
Specified in all scenes, the table 3 generated according to the present invention is all each transformat（TF）Full combination, so all necessarily may be used
To obtain a unique TFC result）；
Step 108, each transmission channel（Namely cooperative transmission channel and miscoordination transmission channel）According to selected current TTI
Transformat combination（TFC）In respective transformat（TF）As each transmission channel（Namely cooperative transmission channel and non-
Cooperative transmission channel）Current TTI transformat.
This three tables of the table 1, table 2 and table 3 are preset in a communications device, also include before the step 101：
Establish transmission channel（Including cooperative transmission channel and miscoordination transmission channel）When by communication equipment by three tables and each transmission
The configuration parameter of channel is allocated to the MAC module in communication equipment together.
Alternatively, also include before the step 101：Establishing transmission channel（Including cooperative transmission channel and non-association
Same transmission channel）When, the configuration parameter of each transmission channel is only allocated to the MAC module in communication equipment by communication equipment, by MAC
Module generates table 1, table 2 and table 3 this three tables in real time.
Methods described is used for all wireless devices for meeting 3GPP standards, when the subchannel number of cooperative transmission channel is p,
When the number of miscoordination transmission channel is q, step 101, step 102 and step 103 respectively perform 1 time, and step 105 performs q times,
The computational complexity of step 107 is o（1+q）.
As shown in Fig. 2 before step 101, in addition to according to all transmission channel configuration parameters, collaboration letter is established respectively
Road TFS Transport Format Set（Abbreviation table 1）, the transformat mapping table of co-channel transformat and each subchannel（Abbreviation table
2）, and the transport format combination set after the transformat of each subchannel corresponding to co-channel transformat replacement（Referred to as
Table 3）Three tables.Its mode has two kinds：First way is this three tables in communication equipment（Including base station, mobile phone etc.）In
It is preset, the configuration parameter of three tables and each transmission channel is allocated to MAC together by communication equipment when establishing transmission channel
Module；The second way is when establishing transmission channel, and the configuration parameter of each transmission channel is only allocated to MAC moulds by communication equipment
Block, corresponding three tables are generated in real time according to corresponding method by MAC module.
Wherein using the second way generate three tables idiographic flow can for example with detail below the step of come reality
It is existing：
Step 401, each transmission channel is obtained（Namely cooperative transmission channel and miscoordination transmission channel）Parameter configuration and biography
Transport format combination collection, including the transport format combination set of the TFS Transport Format Set parameter configuration of each transmission channel and each transmission channel；
Step 402, from the transport format combination set of each transmission channel, the biography of each subchannel of cooperative transmission channel is calculated
Transport format combination, each transformat combination is corresponded to the transformat of a cooperative transmission channel, so as to draw co-channel
Transformat（co-TF）With each subchannel（" each subchannel " refers to each subchannel of cooperative transmission channel）Transformat
（TF）Mapping table, hereinafter referred to as table 2；
Step 403, according to each transformat of cooperative transmission channel（TF）The calculation formula of size obtains co-channel and passed
Transport format collection, hereinafter referred to as table 1, the formula are：
Wherein coTBSmFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）Transport block set（TBS）Greatly
It is small；subTBSm:NoFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）The phase of corresponding No sub-channels
The transport block set corresponding to transformat answered（TBS）Size, No spans are 1-n, and wherein n is each of cooperative transmission channel
The number of subchannel；
Step 404, by the transmission of each subchannel of cooperative transmission channel in the transport format combination set obtained in step 401
Form（TF）According to the corresponding relation of table 2 by co-channel transformat（co-TF）It is replaced and draws table 3, the table 3 is use
Co-channel transformat（co-TF）Each subchannel corresponding to replacement（" each subchannel " refers to each son of cooperative transmission channel
Channel）Transformat after transport format combination set（" transport format combination set " refer to correspond to cooperative transmission channel and
The transport format combination set of each transmission channel of miscoordination transmission channel）.
Present invention also offers a kind of transformat of wireless transmission channel to select system, including：
First processing module, for obtaining all subchannels of cooperative transmission channel（Here all subchannels are substantial
All it is cooperative transmission channel）Current TTI transmission request BO is added, and BO is asked in the transmission as cooperative transmission channel；
Second processing module, for inquiry table 1, find the biography of the cooperative transmission channel with being calculated in first processing module
Defeated request co-channel transformat corresponding to BO numerical value（co-TF）, the table 1 is co-channel TFS Transport Format Set；
3rd processing module, for inquiry table 3, find all containing the co-channel found in Second processing module transmission
Form（co-TF）Transformat combination（TFC）, the table 3 is to be replaced with co-channel transformat according to the corresponding relation of table 2
For each subchannel of cooperative transmission channel（" each subchannel " refers to each subchannel of cooperative transmission channel）Transformat after
Transport format combination set（" transport format combination set " refers to corresponding to each of cooperative transmission channel and miscoordination transmission channel
The transport format combination set of transmission channel）, the table 2, which is that co-channel transformat is corresponding with the transformat of each subchannel, to close
It is table；
Fourth processing module, for obtaining a miscoordination transmission channel（Here in agreement regulation, established for user
It is inevitable at least one miscoordination transmission channel to be present simultaneously in transmission channel, such as carrying out the special control of signalling
Channel DCCH etc.）Current TTI transmission request BO, in TFS Transport Format Set corresponding to the miscoordination transmission channel（TFS）In find
Corresponding transformat（TF）；
5th processing module, for inquiry table 3, find all containing the miscoordination found in fourth processing module transmission
The transformat of channel（TF）Transformat combination（TFC）；
6th processing module, for using fourth processing module and the 5th processing module for all miscoordination transmission channels
Processing procedure is repeated, until finding out transformat combination corresponding to all miscoordination transmission channels；
7th processing module, for the transformat group found out respectively from cooperative transmission channel and miscoordination transmission channel
Close（TFC）In, find all existing transformat combination in the lookup result of all transmission channels（TFC）As current
TTI transformat combination（Here because the TFC in table 3 is the transmission of co-channel transformat and miscoordination transmission channel
The full combination of form, therefore TFC and the 2nd TFC checked out checked out for the 1st time certainly exists an identical TFC,
In all scenes specified in 3GPP agreements, the table 3 generated according to the present invention is all each transformat（TF）Full combination, institute
All can necessarily obtain a unique TFC result）；
8th processing module, for causing each transmission channel（Namely cooperative transmission channel and miscoordination transmission channel）According to
Selected current TTI transformat combination（TFC）In respective transformat（TF）As each transmission channel（Namely collaboration
Transmission channel and miscoordination transmission channel）Current TTI transformat.
This three tables of the table 1, table 2 and table 3 are preset in a communications device, and the system also includes：First determines
Module, for establishing transmission channel（Including cooperative transmission channel and miscoordination transmission channel）When by communication equipment by this three
The configuration parameter of table and each transmission channel is allocated to the MAC module in communication equipment together.
Alternatively, the system also includes：Second determining module, for establishing transmission channel（Believe including cooperative transmission
Road and miscoordination transmission channel）When, the configuration parameter of each transmission channel is only allocated to the MAC moulds in communication equipment by communication equipment
Block, generate 3 three table 1, table 2 and table tables in real time by MAC module.
Second determining module specifically includes：
First configuration module, for obtaining each transmission channel（Namely cooperative transmission channel and miscoordination transmission channel）Ginseng
Number configuration and transport format combination set, including the transmission lattice of the TFS Transport Format Set parameter configuration of each transmission channel and each transmission channel
Formula combination of sets；
Second configuration module, for from the transport format combination set of each transmission channel, it is each to calculate cooperative transmission channel
The transformat combination of subchannel, by the transformat of the corresponding cooperative transmission channel of each transformat combination, so that
Go out co-channel transformat（co-TF）With each subchannel（" each subchannel " refers to each subchannel of cooperative transmission channel）'s
Transformat（TF）Mapping table, hereinafter referred to as table 2；
3rd configuration module, for each transformat according to cooperative transmission channel（TF）The calculation formula of size is assisted
Cochannel TFS Transport Format Set, hereinafter referred to as table 1, the formula are：
Wherein coTBSmFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）Transport block set（TBS）Greatly
It is small；subTBSm:NoFor m-th of transformat of cooperative transmission channel in table 2（co-TFm）The phase of corresponding No sub-channels
The transport block set corresponding to transformat answered（TBS）Size, No spans are 1-n, and wherein n is each of cooperative transmission channel
The number of subchannel；
4th configuration module, for cooperative transmission channel in the transport format combination set that will be obtained in the first configuration module
The transformat of each subchannel（TF）According to the corresponding relation of table 2 by co-channel transformat（co-TF）It is replaced and draws
Table 3, the table 3 are with co-channel transformat（co-TF）Transmission lattice after the transformat of each subchannel corresponding to replacement
Formula combination of sets.
【Embodiment】
With 3GPP（3rd Generation Partnership Project, third generation partner program）Advised in agreement
Fixed UL:5.15 DL:5.15 kbps / CS RAB + UL:3.4 DL:3.4 kbps SRBs for DCCH（Wherein, accord with
Number implication it is as follows, UL：Uplink, up-link；DL：Downlink, downlink；CS：Channel Switching, letter
Road exchanges；RAB：Radio Access Bearer, RAB；SRBs：Signalling Radio Bearers, letter
Make radio bearer；DCCH：Dedicated Control Channel, DCCH）This includes cooperative transmission channel
Concrete operations mode is provided exemplified by transmission channel combination.
When a cellphone subscriber establishes a 5.15 kbps speech business, the UE（User Equipment, Yong Hushe
It is standby）4 transmission channels are configured for the base station communicated.Wherein 1-3 transmission channels are three sub-channels of co-channel,
4 channels are signaling channel.
According to 3GPP agreements, to should business（5.15 kbps speech businesses）Each transport channel parameters configuration and transmission
Format combination set is as shown in Table A and table B：
（1）The TFS Transport Format Set of 4 transmission channels（TFS）Parameter configuration：
Table A
（2）The transport format combination set of 4 transmission channels（TFC）：
Table B
| Transformat combination | RAB subflow#1 | RAB subflow#2 | RAB subflow#3 | DCCH |
| TFC0 | TF0 | TF0 | TF0 | TF0 |
| TFC1 | TF1 | TF0 | TF0 | TF0 |
| TFC2 | TF2 | TF1 | TF1 | TF0 |
| TFC3 | TF0 | TF0 | TF0 | TF1 |
| TFC4 | TF1 | TF0 | TF0 | TF1 |
| TFC5 | TF2 | TF1 | TF1 | TF1 |
From the transport format combination set of 4 transmission channels（TFC）In, cooperative transmission channel subchannel 1,2 can be calculated,
There are three kinds of combinations in 3 transformat combination, as shown in table C.
Table C
| Transformat combination | RAB subflow#1 | RAB subflow#2 | RAB subflow#3 |
| 1 | TF0 | TF0 | TF0 |
| 2 | TF1 | TF0 | TF0 |
| 3 | TF2 | TF1 | TF1 |
By the transformat of the corresponding cooperative transmission channel of each combination（Namely co-channel transformat co-TF）,
So as to draw co-channel transformat（co-TF）With the transformat of each subchannel（TF）Mapping table（Hereinafter referred to as table
2）, the table 2 of the business is as follows：
Table 2
| co-RAB | RAB subflow#1 | RAB subflow#2 | RAB subflow#3 |
| co-TF0 | TF0 | TF0 | TF0 |
| co-TF1 | TF1 | TF0 | TF0 |
| co-TF2 | TF2 | TF1 | TF1 |
Each transformat TF sizes of cooperative transmission channel calculate according to formula below：
Wherein coTBSmFor the transport block set of m-th of transformat co-TFm of cooperative transmission channel in table 2
（Transport Block set, abbreviation TBS）Size, m spans are 0-2 in this example embodiment；subTBSm:NoTo be assisted in table 2
Corresponding to the corresponding transformat of No corresponding to m-th of transformat co-TFm of transmission channel sub- transmission channels
Transport block set size, No spans are 1-3 in the present embodiment.
The table 1 of the business, namely co-channel TFS Transport Format Set can be drawn according to this formula（Transport
Format Set, abbreviation TFS, hereinafter referred to as table 1）：
Table 1
By transport format combination set（TFC in table B）In each cooperative transmission channel subchannel transformat according to table 2
Corresponding relation is replaced the table 3 for drawing the business by co-channel transformat, namely with co-channel transformat（co-
TF）Transport format combination set after the transformat of each subchannel corresponding to replacement（Abbreviation table 3）It is as follows：
Table 3
After table 1, table 2 and table 3 is obtained, it is assumed that in some TTI, each transmission channel is connected to the transmission request on upper strata such as
Under：
RAB subflow#1：81bit
RAB subflow#2：103bit
RAB subflow#3：60bit
DCCH： 200bit
Being calculated as follows for MAC transformat combinations is carried out according to the processing method of this method：
The transmission request that step 201. obtains each subchannel is added, and draws the transmission request SDU of cooperative transmission channel BO
For：81bit + 103bit + 60bit = 244bit；
Step 202. inquiry table 1 show that transformat corresponding to TFS 244bit is co-TF2；
Step 203. finds out all transformat combinations containing transformat co-TF2 in table 3, and one shares two：
TFC2, TFC5；
There is miscoordination transmission channel DCCH in step 204., its transmission request BO is 200bit, inquires about corresponding transmit
Format set（TFS）It is TF1 to draw qualified transformat；
Step 205. finds out all transformat combinations containing transformat TF1 in table 3, and one shares three：
TFC3, TFC4, TFC5；
Step 206. is carried out in next step without other miscoordination transmission channels；
In the transport format combination set that step 207. chooses from above cooperative transmission channel and miscoordination transmission channel,
The transformat combination that each transmission channel is owned by is selected, is as a result TFC5, as current TTI transformat combination,
According to TFC5 definition, each respective transformat of transmission channel is as follows：
RAB subflow#1：TF2
RAB subflow#2：TF1
RAB subflow#3：TF1
DCCH：TF1
In terms of process above, when the subchannel number of cooperative transmission channel is p, the number of miscoordination transmission channel is q
When, step 201, step 202 and step 203 respectively perform 1 time, and step 205 performs q times, and the computational complexity of step 207
For o（1+q）, it can be seen that its computational complexity is relatively low, and operation efficiency is higher, can select wireless transmission channel faster
Transformat.
【Comparative example】：
The advantages of in order to prove transfer format selecting method of the present invention, it shown below is and conventionally enter
The specific steps of row transformat selection as a comparison case, are compared.
Conventionally show that transformat combination process is as follows：
The transmission request that step 301. obtains RAB subflow#1 is 81bit, inquiry RAB subflow#1 transmission lattice
Formula, which integrates, corresponds to transformat as TF2；
Step 302. transformat TF2 corresponding to RAB subflow#1 is searched in transport format combination set meets bar
The transformat combination of part, result is obtained to have two TFC2, TFC5；
Step 303. repeats the 301st step and the 302nd step for each transmission channel, draws what each transmission channel met
Transformat combination, it is respectively：
RAB subflow#2：TFC2, TFC5
RAB subflow#3：TFC2, TFC5
DCCH：TFC3, TFC4, TFC5
Step 304. is selected each transmission channel and all accorded with from the transport format combination set that above each transmission channel chooses
The transformat combination of conjunction, it is as a result TFC5, as this TTI transformat combination, according to TFC5 definition, each transmission
The respective transformat of channel is as follows：
RAB subflow#1：TF2
RAB subflow#2：TF1
RAB subflow#3：TF1
DCCH： TF1
In terms of process above, when the subchannel number of cooperative transmission channel is p, the number of miscoordination transmission channel is q
When, step 301 and step 302 perform p+q times respectively, and the computational complexity of step 304 is o（p+q）, relative to this hair
For bright, its operand greatly increases, and computational complexity is higher, and the processing time of consuming is longer.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be with
Realized by other structures, feature of the invention is not limited to above-mentioned preferred embodiment.It is any to be familiar with this technology
Personnel are in the technical field of the present invention, the change or modification that can readily occur in, should all cover the patent protection model in the present invention
Within enclosing.
Claims (10)
1. a kind of transfer format selecting method of wireless transmission channel, it is characterised in that comprise the following steps：
Step 101, the transmission request BO for obtaining the current TTI of all subchannels of cooperative transmission channel is added, as cooperative transmission
The transmission request BO of channel；
Step 102, inquiry table 1, find and ask BO numerical value corresponding with the transmission of the cooperative transmission channel calculated in step 101
Co-channel transformat co-TF, the table 1 are co-channel TFS Transport Format Set；
Step 103, inquiry table 3, all transmission lattice containing the co-channel transformat co-TF found in step 102 are found
Formula combines TFC, and the table 3 is each son for substituting cooperative transmission channel according to the corresponding relation of table 2 with co-channel transformat
Transport format combination set after the transformat of channel, the table 2 are co-channel transformat and the transmission lattice of each subchannel
Formula mapping table；
Step 104, a current TTI of miscoordination transmission channel transmission request BO is obtained, is corresponded in the miscoordination transmission channel
TFS Transport Format Set TFS in find corresponding to transformat TF；
Step 105, inquiry table 3, find all transformat TF's containing the miscoordination transmission channel found in step 104
Transformat combination TFC；
Step 106, step 104 and 105 are repeated for all miscoordination transmission channels, is passed until finding out all miscoordination
Transformat combination corresponding to defeated channel；
Step 107, in the transformat combination TFC found out respectively from cooperative transmission channel and miscoordination transmission channel, find
Transformat combinations of all existing transformat combination TFC as current TTI in the lookup result of one all transmission channel；
Step 108, each transmission channel is according to the respective transformat TF in selected current TTI transformat combination TFC
Transformat as the current TTI of each transmission channel.
2. the method as described in claim 1, it is characterised in that this three tables of the table 1, table 2 and table 3 have been preset at communication
In equipment, also include before the step 101：Three tables and each transmission are believed by communication equipment when establishing each transmission channel
The configuration parameter in road is allocated to the MAC module in communication equipment together.
3. the method as described in claim 1, it is characterised in that also include before the step 101：Establishing each transmission channel
When, the configuration parameter of each transmission channel is only allocated to the MAC module in communication equipment by communication equipment, is given birth in real time by MAC module
Into this three tables of table 1, table 2 and table 3.
4. method as claimed in claim 3, it is characterised in that the table 1 of generation in real time, table 2 and table 3 this three tables it is specific
Step is as follows：
Step 401, the parameter configuration and transport format combination set of each transmission channel are obtained, includes the transformat of each transmission channel
Collect the transport format combination set of parameter configuration and each transmission channel；
Step 402, from the transport format combination set of each transmission channel, the transmission lattice of each subchannel of cooperative transmission channel are calculated
Formula is combined, and each transformat combination is corresponded to the transformat of a cooperative transmission channel, so as to show that co-channel is transmitted
Form co-TF and the transformat TF mapping tables of each subchannel, hereinafter referred to as table 2；
Step 403, co-channel transformat is obtained according to the calculation formula of each transformat TF sizes of cooperative transmission channel
Collection, hereinafter referred to as table 1, the formula are：
<mrow>
<msub>
<mi>coTBS</mi>
<mi>m</mi>
</msub>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>N</mi>
<mi>o</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<msub>
<mi>subTBS</mi>
<mrow>
<mi>m</mi>
<mo>:</mo>
<mi>N</mi>
<mi>o</mi>
</mrow>
</msub>
</mrow>
Wherein coTBSm is the transport block set TBS sizes of m-th of transformat co-TFm of cooperative transmission channel in table 2；
subTBSm:No is the corresponding of No sub-channels corresponding to m-th of transformat co-TFm of cooperative transmission channel in table 2
Transport block set TBS sizes corresponding to transformat, No spans are 1-n, and wherein n is each subchannel of cooperative transmission channel
Number；
Step 404, by the transformat of each subchannel of cooperative transmission channel in the transport format combination set obtained in step 401
TF is replaced by co-channel transformat co-TF according to the corresponding relation of table 2 and draws table 3, and the table 3 is to use co-channel
Transport format combination set after the transformat of each subchannel corresponding to transformat co-TF replacements.
5. the method as described in claim any one of 1-4, it is characterised in that methods described is used for all 3GPP standards that meet
Wireless device.
A kind of 6. transformat selection system of wireless transmission channel, it is characterised in that including：
First processing module, it is added for obtaining the current TTI of all subchannels transmission request BO of cooperative transmission channel, as
The transmission request BO of cooperative transmission channel；
Second processing module, for inquiry table 1, the transmission for finding the cooperative transmission channel with being calculated in first processing module please
Co-channel transformat co-TF corresponding to BO numerical value is sought, the table 1 is co-channel TFS Transport Format Set；
3rd processing module, for inquiry table 3, find all containing the co-channel transformat found in Second processing module
Co-TF transformat combination TFC, the table 3 are to substitute collaboration according to the corresponding relation of table 2 with co-channel transformat to pass
Transport format combination set after the transformat of each subchannel of defeated channel, the table 2 are co-channel transformat and each son
The transformat mapping table of channel；
Fourth processing module, the transmission for obtaining a current TTI of miscoordination transmission channel are asked BO, transmitted in the miscoordination
Transformat TF corresponding to being found in TFS Transport Format Set TFS corresponding to channel；
5th processing module, for inquiry table 3, find all containing the miscoordination transmission channel found in fourth processing module
Transformat TF transformat combination TFC；
6th processing module, for being repeated for all miscoordination transmission channels using fourth processing module and the 5th processing module
Processing procedure is performed, until finding out transformat combination corresponding to all miscoordination transmission channels；
7th processing module, for the transformat combination found out respectively from cooperative transmission channel and miscoordination transmission channel
In TFC, biographies of all existing transformat combination TFC as current TTI in the lookup result of all transmission channels is found
Transport format combination；
8th processing module, for causing each transmission channel according to respective in selected current TTI transformat combination TFC
Transformats of the transformat TF as the current TTI of each transmission channel.
7. system as claimed in claim 6, it is characterised in that this three tables of the table 1, table 2 and table 3 have been preset at communication
In equipment, the system also includes：
First determining module, for when establishing each transmission channel by communication equipment by the configuration of three tables and each transmission channel
Parameter is allocated to the MAC module in communication equipment together.
8. system as claimed in claim 6, it is characterised in that the system also includes：
Second determining module, for when establishing each transmission channel, communication equipment only to configure the configuration parameter of each transmission channel
To the MAC module in communication equipment, 3 three table 1, table 2 and table tables are generated in real time by MAC module.
9. system as claimed in claim 8, it is characterised in that second determining module specifically includes：
First configuration module, for obtaining the parameter configuration and transport format combination set of each transmission channel, including each transmission channel
TFS Transport Format Set parameter configuration and each transmission channel transport format combination set；
Second configuration module, for from the transport format combination set of each transmission channel, calculating each sub- letter of cooperative transmission channel
The transformat combination in road, the transformat of the corresponding cooperative transmission channel of each transformat combination is assisted so as to draw
Cochannel transformat co-TF and the transformat TF mapping tables of each subchannel, hereinafter referred to as table 2；
3rd configuration module, the calculation formula for each transformat TF sizes according to cooperative transmission channel obtain co-channel
TFS Transport Format Set, hereinafter referred to as table 1, the formula are：
<mrow>
<msub>
<mi>coTBS</mi>
<mi>m</mi>
</msub>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>N</mi>
<mi>o</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<msub>
<mi>subTBS</mi>
<mrow>
<mi>m</mi>
<mo>:</mo>
<mi>N</mi>
<mi>o</mi>
</mrow>
</msub>
</mrow>
4th configuration module, each son for cooperative transmission channel in the transport format combination set that will be obtained in the first configuration module
The transformat TF of channel is replaced by co-channel transformat co-TF according to the corresponding relation of table 2 and draws table 3, described
Table 3 is the transport format combination set after the transformat of each subchannel corresponding to co-channel transformat co-TF replacements.
10. the system as described in claim any one of 6-9, it is characterised in that the system meets 3GPP standards for all
Wireless device.
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