CN1894878A

CN1894878A - Transport format combination lookup and reselection

Info

Publication number: CN1894878A
Application number: CNA2004800258446A
Authority: CN
Inventors: 帕拉桑达·V·霍欧; 沙希达·摩巴
Original assignee: InterDigital Technology Corp
Current assignee: InterDigital Technology Corp
Priority date: 2003-09-09
Filing date: 2004-09-02
Publication date: 2007-01-10

Abstract

The present invention provides a method of deriving a valid Transport Format Combination (TFC) indicator (TFCI) in a wireless communication system in which a set of transport channels are multiplexed onto a composite channel. Each transport channel is checked whether data is expected on the transport channel and monitored for received data. Candidate tfcs that do not have a tfc pointer that matches the current transport channel are removed from the set of candidate tfcs. The tfci is identified based on a single remaining candidate tfc of the candidate tfc set.

Description

Transformat combination is tabled look-up and is selected

Technical field

The present invention relates to the transmission channel of 3GPP class UMTS system.Particularly, the transformat combination (TFC) that the present invention relates in the L1 layer of base station side of WTRU and UMTS is tabled look-up and transformat combination selection mechanism again.

Background technology

Base station, wireless transmission/receiving element noun are to be used with its general connotation.Including but not limited to subscriber equipment, travelling carriage is fixed or moving user unit at this wireless transmission/receiving element (WTRU) that is used, and calling set maybe can operate in any other type component in the wireless environment.Wireless transmission/receiving element comprises personal communicator, as mobile phone, and video signal mobile phone and have the world-wide web mobile phone that network connects.In addition, wireless transmission/receiving element comprises the portability personal computing device, as has the personal digital assistant (PDAs) and the notebook computer of the radio modem of similar network function.Wireless transmission/receiving element that portability maybe can change the position is called as mobile unit.After this being called as the base station person is including but not limited to the base station, node-b, address control unit, other interconnecting assembly in access point or the wireless environment.

Wireless communication system is well known in the technical field.For the general connection of wireless system is provided, standard is developed and is implemented.A current standard that is widely used is to be known as mobile communication general-purpose system (GSM).This be regarded as so-called second generation mobile radio system standard (2G) and follow after its rev (2.5G).GPRS and EDGE are the 2.5G technology of suitable high-speed data service that (2G) mobile communication general-purpose system network top is provided.These standards are respectively sought with supplementary features and are strengthened improving the prior art standard.In January, 1998, ETSI-mobile group (ETSI-SMG) agreement is called as the radio access plan of the third generation wireless system of Universal Mobile Telecommunications System (UMTS) especially.For a nearly step is implemented this Universal Mobile Telecommunications System standard, third generation partner plan (3GPP) is formed in December, 1998.Third generation partner plan continues to be implemented on the common third generation mobile radio standard.

Typical general mobile communication system framework according to existing third generation partner prospectus is to be depicted in Figure 1A.The UMTS network framework comprise via by specific definition at present openly can get in the third generation partner program introduction written matter the interface that is known as Iu by with the core network (CN) of Universal Mobile Telecommunications System Universal/UMTS Terrestrial Radio Access Network (UTRAN) (UTRAN) interconnection.The Universal Mobile Telecommunications System Universal/UMTS Terrestrial Radio Access Network (UTRAN) is the wireless transmit receive unit (WTRUs) that is configured via being known as the calculated subscriber equipment of third generation partner (UEs), provides radio communication service to the user via the radio interface that is known as Uu.The Universal Mobile Telecommunications System Universal/UMTS Terrestrial Radio Access Network (UTRAN) has one or more radio network controller (RNCs) and is known as the base station of the calculated Node B of third generation partner (Node Bs), and its collection property provides geographical coverage rate and subscriber equipment to do radio communication.One or more Node B is to be connected to each radio network controller via being known as the calculated Iub of third generation partner.The Universal Mobile Telecommunications System Universal/UMTS Terrestrial Radio Access Network (UTRAN) can have the some group node B that are connected to the different networks controller; Two is to be shown in the example that is depicted in Figure 1A.Be provided in the Universal Mobile Telecommunications System Universal/UMTS Terrestrial Radio Access Network (UTRAN) greater than a radio network controller, communication between wireless network controllers is to implement via the Iur interface.

The communication of external networking component is by implementing via accurate the reaching via the Node B on the network level of the various core networks that connect external system in the user position at Uu interface.

Usually, the base station major function as Node B and access point provides the network of base station and the wireless connections between wireless transmit receive unit.Usually the base station can be sent and be made disconnected wireless transmit receive unit and the synchronous shared channel signal of this base station time point.Third generation partner in the works, Node B is carried out the entity wireless connections with subscriber equipment.Node B can receive the signal from radio network controller in the Iub interface, and its may command is by the signal of Node B in the transmission of Uu interface.

Core network is to be responsible for transmission information to its correct destination.For example, core network can transmit the voice traffic that received by Universal Mobile Telecommunications System via Node B to public switched telephone network (PSTN) or be transferred into the packet data of world-wide web from subscriber equipment.

Radio network controller is the built-in function of may command Universal Mobile Telecommunications System Universal/UMTS Terrestrial Radio Access Network (UTRAN) roughly.Radio network controller also provides via the connection of Uu interface and does the intermediary sevices of communicating by letter that contain regional assembly with Node B, and via the external service assembly of the connection between core network and external system, the overseas calling of finishing as the mobile phone in the domestic Universal Mobile Telecommunications System Universal/UMTS Terrestrial Radio Access Network (UTRAN).

Figure 1B shows Universal Mobile Telecommunications System terrestrial radio access (UTRA) protocol stack that is contained in radio network controller 11 and the base station 14.Radio network controller 11 comprises Radio Link control (RLC) layer 12 and medium access control (MAC) layer 13.Base station 14 comprises entity L1 layer 15.

Wireless chain control layer 12 can transmit the logic channel bear control information to medium access control layer 13.These logic channels are dynamic control channel (DCCH), and it comprises delivering sets up information and dynamic news affair channel (DTCH) as the user data of voice and data.

Medium access control layer 13 can be with the dynamic control channel of logic channel and is dynamically interrogated affair channel reflection to different transmission channels (TrCHs), and it then is passed to entity L1 layer 15.Entity L1 layer 15 is responsible for transfer of data.The interface of medium access control layer and L1 interlayer is to form by transmission channel.In the L1 layer, one group of transmission channel is combined and forms coded composite transport channel (CCTrCH).

Transformat (TF) can be by setting Transmission Time Interval (TTI) (representing with microsecond), and transmission block (TB) size (with bit representation) reaches the data rate that transmission block group (TBS) size defines transmission channel.Transformat combination group (TFCS) is to be defined at each coded composite transport channel.Each transformat combination (TFC) is to discern and at each coded composite transport channel definition transformat combination by Transport Format Combination Indicator (TFCI) (TFCI).Transport Format Combination Indicator (TFCI) can send and only comprise the signal of pointing out to be configured the present transformat combination in the transformat combination group.Only there is a Transport Format Combination Indicator (TFCI) to represent present transformat on all transmission channels of a coded composite transport channel simultaneously.Transport Format Combination Indicator (TFCI) is used to notify present valid transport format to make up to receiver side, and how to encode, and separates multitask and transmission and is received data on suitable transmission channel.Third generation partner plan provides " blind transport format detection " by receiving station's selectivity, and wherein this receiving station considers potential valid transport format combination pointer.One valid transport format combination pointer person is only arranged, and this Transport Format Combination Indicator (TFCI) is used to arbitrary example.

Transformat group (TFS) is to be defined as the transformat group relevant with transmission channel.So the semi-static parts of transformat are the identical person in the transformat group.Effectively, the big I of transmission block size and transmission block group forms the moment bit rate on the transmission channel.Variable-digit speed on the transmission channel be on be mapped on the transmission channel COS by only have transmission block group size (not can be applicable to HS-DSCH) or transmission block size and transmission block group size both one of the change between each Transmission Time Interval reach and decide.

Transport Format Combination Indicator (TFCI) is the digital value (between 0 and 255) that is assigned to illustrate the particular transmission format that is used to present Transmission Time Interval.

Transmission block is for being exchanged in the elementary cell of 15 on medium access control layer 13 and entity L1 layer.The transmission block group is to be defined as being exchanged simultaneously between medium access control layer 13 and entity L1 layer 15 and one group of transmission block of use same transmission channel.Transmission Time Interval is the interval arrival time that is defined as the transmission block group, and it equals the transmission block group is transferred to entity L1 layer 15 from medium access control layer 13 cycle.For example, 20 microsecond Transmission Time Intervals represent that per 20 microseconds (being generally equal to 2 10 microsecond frames) are by bright transfer of data in transformat.L1 layer 15 processing hardware can in as the radio interface of wireless transmission/receiving element on transmit the transmission block group to peer entity.

Medium access control layer 13 is transformat combination of being responsible for selecting the transmission channel in the coded composite transport channel capable of being combined.This selection betides every Transmission Time Interval place.For following chain, transport format combination selection is the data volume that is cushioned based on each logic channel.Selecting for cochain communications format combination is to be cushioned the user device transmissions power on data volume and the cochain.All of each transmission channel in the transformat combination definable coded composite transport channel dynamically reach semi-static parameter.The selected transformat combination of each cochain coded composite transport channel and related data are to be provided to physical layer to transmit.

The reciprocation of medium access control layer 13 and entity L1 layer 15 is the original function form, the wherein logic of this original function representative information and control exchange.This original function as third generation partner planning system is that solid data requires (PHY-Data-REQ), and it can be used as the pointer that is transferred into the data transmission block of entity L1 layer at each transmission channel from medium access control layer.This solid data requires original function also to comprise the following parameter information that belongs to the transport channel data: transformat pointer, transmission block group and be used for staying the connection frame number (CFN) of depositing cell.It is that Transmission Time Interval in every transport channel is transmitted that this solid data requires original function.

For chain base station signal processing down, the Transport Format Combination Indicator (TFCI) of being selected by medium access control layer 13 can not be obtained in the Iub interface by base station 14.The Iub Frame that is used for the transport channel on the particular frame only delivers the transformat pointer of this transmission channel that is used on this frame.The processing calculation of L1 layer 15 is that the transmission block of all transmission channels on the expection coded composite transport channel can be as Transport Format Combination Indicator (TFCI), the transmission block size, and number of transport blocks, all necessary informations of Transmission Time Interval etc. are come access.If the L1 layer 15 of base station 14 can not receive the transformat pointer of transport channel, but the transformat pointer value of 0 of the correspondence of discernable this transmission channel, then corresponding 0 transformat pointer value is supposed to be used for this transport channel.When comprising this hypothesis transformat pointer during the transformat pointer of the different transmission channels of combination, valid transport format combination pointer can make up by corresponding this, and data should be transmitted in the radio interface Uu between base station and wireless transmission/receiving element.If hypothesis is mapped to zero-bit data on the channel and is actually between radio network controller 11 and the base station 14 the communication that is delayed on the Iub interface, though then this Transport Format Combination Indicator (TFCI) is for effectively to make up from the transformat pointer that can obtain Transport Format Combination Indicator (TFCI), it does not represent the data that are transmitted.

At wireless transmission/receiving element cochain signal processing, erroneous transmissions format combination pointer is selected to produce similar problem.Fig. 1 C shows the protocol layer storehouse that is used for wireless transmission/receiving element 16, comprises medium access control layer 17 and entity L1 layer 18.Medium access control layer 17 can select only to be used for the Transport Format Combination Indicator (TFCI) of cochain dedicated channel (DCHs), and provides the valid transport format in the solid data requirement original function to make up pointer to L1 layer 18.Suppose to be used for frame coded composite transport channel all data all with the time sequential mode arrive at L1 layer 18, then Transport Format Combination Indicator (TFCI) can fully be used for L1 layer 18.Therefore, if data have early arrived at L1 layer 18 and the Transport Format Combination Indicator (TFCI) that provided by medium access control layer 17 by 18 good authentication of L1 layer, then do not need Transport Format Combination Indicator (TFCI) to table look-up to submit necessary information to calculate transferring data on radio interface to the processing of L1 layer 18.Yet, if the data of all coded composite transport channels not with the time sequential mode arrive at from medium access control layer 17, then the Transport Format Combination Indicator (TFCI) wrong choice risk that must shift based on the fragmentary data of 18 on medium access control layer 17 and L1 layer is selected again.

Summary of the invention

A kind of processing method of communication data is provided derivation by the transformat combination that is treated to the multidata channel that key-course produced that compound channel is used to transmit by physical layer.The transferring data frames group can make the transmission data be formatted as one of a plurality of predetermined formats, but the wherein involved selected combination of data channel that wherein is used to be transmitted in the Frame group of compound channel of this predetermined format recognition data.This method comprises by the physical layer selectivity and receives from the formatted data on the data channel in the be transmitted in compound channel Frame group of key-course, and is determined transformat for this by determination data.This is compared by predefined channel packed format with known by determination data.Data are received in by this known to all channel persons of predefined channel packed format definition, and this known predefined channel packed format is to be identified as transformat.Data are not received in by this known to all channel persons of predefined channel packed format definition, be decision this be received data whether mate different be to be identified as transformat by predefined channel packed format.

Description of drawings

Figure 1A shows the system architecture general survey of traditional common mobile communication system network.

Figure 1B shows the Universal Mobile Telecommunications System terrestrial radio access protocol storehouse that is used for radio network controller and base station.

Fig. 1 C shows the protocol layer storehouse that is used for wireless transmission/receiving element.

Fig. 2 shows according to entity L1 layer assembly block diagram of the present invention.

The sequential chart of Fig. 3 display entity data demand.

Fig. 4 shows the Transport Format Combination Indicator (TFCI) allocation table.

The frame handling process drawing method of Fig. 5 A and Fig. 5 B display radio transmission/receiving element.

The frame handling process drawing method of Fig. 6 A and Fig. 6 B display radio transmission/receiving element.

Fig. 7 shows the flow chart approach that Transport Format Combination Indicator (TFCI) is tabled look-up and calculated.

Fig. 8 A and Fig. 8 B show that Transport Format Combination Indicator (TFCI) selects the flow chart approach of calculating again.

Embodiment

Though feature of the present invention and assembly are illustrated in the preferred embodiment with particular combinations, each feature and assembly be (further feature of no preferred embodiment and assembly) or be used with the various combinations that have or do not have further feature of the present invention and assembly separately also.Though embodiment is used in combination the third generation partner of time division duplex pattern and plans wide band code division multiple access (W-CDMA) system and illustrate that embodiment also can be applied to any mixing code division multiple access (CDMA)/time division multiple access (TDMA) communication system as the synchronous code division multiple access of timesharing (TD-SCDMA).In addition, embodiment also can be applied to the code division multiple access system, plans proposal frequency division duplexing (FDD) pattern of wide band code division multiple access or CDMA2000 as third generation partner.

The block diagram of Fig. 2 display entity L1 layer 20 comprises and can carry out transmission/reception processing 22 and frame scheduling processing 23.Entity L1 layer 20 also comprises memory 24, is preferably random access memory.22 inputs 25 that can receive from medium access control layer are handled in transmission/reception, and carry out according to transformat combination of the present invention and table look-up and selection again.It is with frame the frame basis to be handled in the L1 layer to be responsible for the schedule transmission block during digital signal processor (DSP) 21 that the frame scheduling handles 23.Memory 24 is to be used to store to keep belong to transformat combination, the information of transformat pointer and Transport Format Combination Indicator (TFCI).Though be shown in Fig. 2 separately, memory 24 also can be included as the part of digital signal processor 21 in alternate embodiment.Table 1 is listed various database used in the present invention.

Table 1

The database identifier	Content
The database identifier	Content	CCTrCH	Can obtain coded composite transport channel reaches in depositing transmission channel number (active transmission channel) tabular
TrCH	The transport format table biographies are failed the time interval, transmission block size and number of transport blocks; The received last connection frame number of data; Received last transformat pointer value.	CCTrCH
TrCH		TFCS	The candidate set of transformat combination; Each transformat combination group has related transport format combination pointer value.
TFS	The candidate transport format group.	TFCS

Fig. 3 shows each and transmission channel TrCH1, and the solid data that TrCH2 and TrCH3 are relevant requires PDR1, PDR2, the sequential chart of PDR3.This sequential chart is to be shown to be used to have frame flag F1, F2, the two Frame duration of F3.The solid data that entity L1 layer 20 can receive from the medium access control layer at input 25 places requires PDR1, PDR2, PDR3.Be delayed frame signal DF1 constantly, DF2 is ended at predetermined adjustable delay by setting timer from the frame moment flag settings as F1 by frame scheduling processing 23.For example, 10 microsecond frame signs have been arranged, be delayed frame constantly signal DF1 is preferable and betide 7 microseconds from frame flag F1.Should notice that 7 microsecond values are empirical value and can be adjusted and adapt to optimum processor power and implement.When timer stopped, being delayed frame moment signal was to be transferred into transmission/reception to handle 22.Be delayed frame constantly interior any of the signal DF1 frame that transmissions/receptions processing 22 handled start from frame flag F1 be received the solid data requirement.As shown in Figure 3, solid data requires PDR1 and PDR2 to be received before the signal DF1 constantly in being delayed frame, and solid data just is received after being delayed frame moment signal DF1 when requiring PDR3.Be preferably, the processing calculation of entity L1 layer 20 is transmission blocks of all transmission channels on the expection coded composite transport channel, all can be as Transport Format Combination Indicator (TFCI), and the transmission block size, number of transport blocks, all necessary informations of Transmission Time Interval etc. are come access.Yet, in the example shown in Figure 3, entity L1 layer 20 cannot the time sequential mode obtain the transformat pointer information that belongs to transmission channel 3.Though transmission channel 3 free of data of this coded composite transport channel indicate present Transport Format Combination Indicator (TFCI) but still must transmit data to L1 processing.But being preferably " virtual " signal at application journey interface (API), is that the transformat pointer that can indicate remainder certificate comes construction.The transformat combination of corresponding zero data transmission channel 3 is selected.If the transport format combination selection according to zero data transmission channel 3 can't produce, but transmission/reception is handled the solid data of 22 reject frames and is required PDR1 and PDR2, to avoid consumes resources in the transfer of data with the invalid Transport Format Combination Indicator (TFCI) that can not correctly be received in air interface.

Fig. 4 demonstration is used for combination of transmitted channel TrCH1, some Transport Format Combination Indicator (TFCI) value tables of the corresponding transformat pointer value of TrCH2 and TrCH3.Be preferably, the transformat pointer value is 5 place values (just 0 to 31).Zero transformat pointer value is that representative is defined zero data transmission channel, and the transformat pointer value of non-zero to be representative be used for transmission channel TrCH1, TrCH2 and TrCH3 particular transmission format.So Transport Format Combination Indicator (TFCI) value [0,41,156,201] requires PDR1, the candidate of PDR2 for the received solid data of Fig. 3 that is used for the F1-F2 frame.Yet,, must derive correct Transport Format Combination Indicator (TFCI) because zero data transmission channel 3 has some possibility Transport Format Combination Indicator (TFCI).

If all data arrive at the time sequential mode of all transmission channels on the frame, then transmission/reception processing 22 begins to calculate the Transport Format Combination Indicator (TFCI) of the starting points of transmission format parameters for " searching " data for being received the solid data requirement, or if all data not with the time sequential mode arrive at the Transport Format Combination Indicator (TFCI) of " again select " data then.In the similar third generation partner planning system, this Transport Format Combination Indicator (TFCI) is tabled look-up and selected is to be used for the linear chain dedicated channel and to pass on access channel (FACHs).In case Transport Format Combination Indicator (TFCI) is searched or select again, then transmissions/reception processing 22 can be carried out the transformat combination group and searches and obtain to remain transmission format parameters.

The method flow diagram that 22 performed Transport Format Combination Indicator (TFCI) are selected calculation is handled in the transmission of Fig. 5 A and Fig. 5 B display radio transmission/receiving element 16/reception.This calculation is carried out and is delayed frame being received in step 501 constantly, in 502.The database information that is stored in the coded composite transport channel in the memory 24 is then prepared for the performed next procedure sequence in coded composite transport channel basis by traverse survey (step 504).Wireless transmission/receiving element cochain signal may have an above coded composite transport channel.In the step 505, whether transmission/reception processing 22 can be inspected all coded composite transport channels that are used for frame all processed.If transmission/reception handles 22 can wait for that the next one is delayed frame (step 506) constantly.If all coded composite transport channels are all not processed, then memory 24 is searched given transport channel information (step 508) from database.Then, if on the present processed coded composite transport channel transmission channel is only arranged, then transformat pointer and data time sequence arrive at the single transport channel or do not have any data arrives.If the transformat pointer is known, then can does general Transport Format Combination Indicator (TFCI) and select.If free of data arrives at, then do not have any data and lined up to be transferred to this coded composite transport channel, and need not select Transport Format Combination Indicator (TFCI) by L1 layer 15 by frame scheduling processing 23.Therefore, calculation 500 skips to next Transport Format Combination Indicator (TFCI) so that further handle (step 509,522).If be present in the current encoder composite transport channel greater than a transmission channel, then calculate 500 and continue step 510, wherein system frame number (SFN) is converted into and connects frame number to follow the trail of the communication specific purpose between this wireless transmission/receiving element and base station of the same generation thereof.Because distribute at the Transport Format Combination Indicator (TFCI) of coded composite transport channel only can to betide the frame flag that results from the Transmission Time Interval boundary and locate constantly, whether be positioned at this Transmission Time Interval boundary so step 511 can be checked present connection frame number.At any processed transmission channel of current encoder composite transport channel, the Transmission Time Interval border is to betide and the terminal consistent frame flag place of transmission block size spacing.Transport Format Combination Indicator (TFCI) only is required to be transmission channel on the coded composite transport channel and changes may changing of the transformat combination betide the Transmission Time Interval boundary.

In the step 512, transmission/reception handles 22 can check whether present frame has any data to be transmitted.Therefore, if any solid data requires to betide in this frame, then consider the active frame and calculate 500 continuation.If not, then next coded composite transport channel is selected with further processing (step 522).

Then, the active transmission channel database in the memory 24 is transmitted/receives processing 22 and checks (step 513).If no transmission channel receives connection frame number data or all transmission channels receive this connection frame number data, then calculate 500 these coded composite transport channels of end process, and begin to handle next coded composite transport channel (step 514,515,522).Otherwise, database at the active transmission channel by horizontal one to one commentaries on classics continuously with further processing (step 516).Whether first transmission channel is to check by the data of searching database hurdle Check_TrCH_for_Expected_Data as expection (step 518) with every transmission channel basis.Enter the mouth designation data as expection if this database hurdle is preferable by snoop logic TRUE or FALSE, and the next one inspection of then calculating in 500 is whether to be received in this transmission channel (step 520) at data.If data are then handled next transmission channel (step 516) not as expection.

The positive result of anticipatory data in the follow procedures 518, transmission/reception handles 22 can be at the entity L1 layer data storehouse (step 520) in the data field CFN_Last_Received inspection memory 24, and its record data are received the last connection frame number that is used for this transport channel.If this field indication coupling connects the connection frame number of frame number at present, then data are received in this transmission channel preceding image duration.So each transmission channel is processed and finish last transmission channel and handle at the current encoder composite transport channel, calculation 500 skips to next coded composite transport channel (step 522).If the data of step 520 are not received by this transmission channel, then Transport Format Combination Indicator (TFCI) selects to start from step 523 again.The processing that Transport Format Combination Indicator (TFCI) is selected again is by the more detailed Fig. 8 of being shown in A and Fig. 8 B, and it will be further explained in detail after a while.If Transport Format Combination Indicator (TFCI) is selected success (step 524) again, then the Transport Format Combination Indicator (TFCI) of coded composite transport channel is transmitted (step 526).If not, all solid datas of present frame require to be rejected till producing the maximum border of Transmission Time Interval (step 525).

22 performed calculations 600 are handled in transmission/reception of Fig. 6 A and Fig. 6 B demonstration base station entity L1 layer, and it is carried out, and Transport Format Combination Indicator (TFCI) is selected again and Transport Format Combination Indicator (TFCI) is searched detected zero data transmission channel.Because step 601 to the step 501 of 625 direct corresponding diagram 5A and Fig. 5 B to 525, so but the explanation of refer step 501 to 525.Fig. 6 A and Fig. 6 B are different from Fig. 5 A and Fig. 5 B person and are the Transport Format Combination Indicator (TFCI) step 627 of tabling look-up, and it is to be that base station 14 is required because of Transport Format Combination Indicator (TFCI) is not sent to entity L1 layer 15 by medium access control layer 13.In step 615, if all transmission channels of current encoder composite transport channel have all received the data of present connection frame number, the then Transport Format Combination Indicator (TFCI) beginning (step 627) of tabling look-up.Transport Format Combination Indicator (TFCI) is tabled look-up and handled is to be shown in the method flow diagram that Fig. 7 describes, and will be further explained in detail.

Fig. 7 shows the method flow diagram of calculation 700, and the Transport Format Combination Indicator (TFCI) table lookup function of the equal data accepted decision of all active transmission channels is followed in its execution.In 700 whens beginning of calculation, the active transmission channel tabular of this coded composite transport channel is the database (step 701,702) in memory 24 of being retrieved, and makes any transmission channel that is not considered deleted in can considering certainly.Then, pointer focuses on the transformat combination group database in the memory 24, and all transformat combination groups all are contained in the candidate transport format combination group (step 703).Active transmission interchannel, first transmission channel are the databases in memory 24 of being retrieved, and are searched (step 704) and indicate the field that is received the transformat pointer at last.Because the transformat pointer is to receive with every Transmission Time Interval PHY_Data_REQ, may be received more than one frame so be received the transformat pointer at last.Any candidate transport format combination group deleted (step 705) that does not have the coupling transformat pointer of step 704.If have what candidate transport format combination more than, then calculate the 700 next active transmission channels (step 707) that skip in the active tabular that is retrieved in step 702.Step 704 to step 707 is recycled and reused for all the active transmission channels in the active tabular.In step 708, a residue transformat combination or zero candidate transport format combination can only be arranged.If have candidate transport format combination, then this transformat combination reflects the coupling transformat pointer of each transmission channel, it is that 22 (steps 710) are handled in echo-plex/reception that success indicates, and distributes the relevant Transport Format Combination Indicator (TFCI) of candidate transport format combination therewith and calculate 600.If there is not the combination of residue candidate transport format in the step 708, then wrong the sign is that 22 (steps 709) are handled in echo-plex/reception.Follow

procedures

709 or or 710, calculation 700 ends at step 711.

Fig. 8 A and Fig. 8 B show the method flow diagram that Transport Format Combination Indicator (TFCI) is selected again.Calculation 800 beginnings, and the active transmission channel tabular of this coded composite transport channel be retrieved (step 801,802).Then, pointer focuses on transformat combination group database, and all transformat combination groups all are contained in the candidate transport format combination group (step 803).Calculation 800 each transmission channel tabular of handling in the active transmission channel tabular.In the step 804, whether Database field Check_TrCH_for_Expected_PHY_Data_REQ is searched with the requirement of decision solid data as expection at first transmission channel.If solid data requires not by in advance aspire on this transmission channel, or if solid data requires to be received on this transmission channel, then field TFI_Last_Rcvd in transport channel data storehouse is searched, and it indicates by the transformat pointer (step 805 that requires with solid data to transmit, 806,809).Be not received if solid data requires by expection, then transformat group database is that the remainder that is defined as at this transmission channel is examined (step 808) according to the transformat pointer of keying in.If the transformat pointer (step 808) that the remainder on the transmission channel is defined according to nothing, then failure sign is that 22 (steps 813) are handled in echo-plex/reception, and all solid datas require to be rejected till next maximum transmission time at interval (step 525 of calculation 500).If there be (step 808) in the remainder reportedly transport format pointer, then all candidate transport format combinations of the nothing of this transmission channel coupling transformat pointer are all from candidate transport format combination group deleted (step 808,810).In step 811, if the candidate transport format number of combinations is greater than 1, then the next transmission channel in the active transmission channel tabular is to handle to 810 according to step 805.If only remain candidate transport format combination (step 812), just the candidate transport format number of combinations is not more than or less than 1, then calculates 800 and discern the correct transformat combination that is used to be received from the data of medium access control layer.Because free of data is used for this frame on this transmission channel, so " but virtual application journey interface ' be to come construction (step 815) with the transformat pointer that indicates remainder certificate, and successful Transport Format Combination Indicator (TFCI) to select be to be labeled to cause calculation 600 (steps 816) again.

Claims

1. A method of deriving a valid transport format combination pointer (TFCI) for a composite channel in a wireless communication system in which wireless communication between a transmitter and a receiver involves transmission of at least one composite channel by means of a The group of transport channels is processed by the physical layer above the multiplex. When the physical data is requested, each transport channel carries data on the timing frame in the transport block unit generated by the control layer. Each transport channel is carried by a transport format pointer (TFI) identified transport format characteristics to define, and the composite channel is defined by means of transport format combination (TFC), including steps:

For each transport channel:

Check if data is expected on the transport channel:

monitoring the transmission channel for received data;

identifying a transport format combination with a matching Transport Format Indicator (TFI) for the current transport channel;

deriving the Transport Format Combination Pointer (TFC) from the Transport Format Combination (TFC) with matching Transport Format Pointers (TFIs) for all Transport Channels (TrCHs); and

All physical data requests corresponding to a frame are rejected, wherein at least one transport channel has zero data and no transport format pointer is defined for the zero data.

2. The method of claim 1, further comprising:

activating a set of candidate transport format combinations (TFCs) to include all transport format combinations; and

Candidate transport format combinations are deleted from the set of candidate transport format combinations that do not have a matching transport format pointer for the current transport channel.

3. The method of claim 1, further comprising performing all steps of combining channels.

4. The method of claim 3, further comprising delaying the frame timing by a predetermined delay.

5. The method of claim 1, further comprising including the derived TFC pointer with transmitted data to enable the receiver to process received data.

6. The method of claim 1, wherein the transmitter is a base station for a Code Division Multiple Access (CDMA) network.

7. The method of claim 1, wherein the transmitter is a wireless transmit/receive unit (WTRU) for a CDMA system.

8. A digital signal processor for use in a wireless communication system, wherein the wireless communication between a transmitter and a receiver comprises the transmission of a composite channel handled by a physical layer on which a set of transmission channels is performed multiplex transmission, each transport channel carries data on timing frames in transport block units generated by the control layer when the physical data is requested, each transport channel is defined by a transport format characteristic identified by a transport format pointer (TFI), While the composite channel is defined by means of a transport format combination (TFC), the digital signal processor contains:

a memory configured to store database information pertaining to the transport block data parameters; and

a transmit/receive processor configured to derive a valid transport format combination pointer (TFCI) based on the candidate transport format combinations listed in the database and expected and received data on the transport channel;

wherein the TFCI is derived from a single remaining candidate TFCI matching the TFCI of the transport channel on the composite channel; and

Thereby the T/R processor rejects all physical data requests corresponding to a frame in which at least one transport channel has zero data and no transport format pointer is defined for the zero data.

9. A wireless transmit/receive unit (WTRU) for use in a wireless communication system, wherein wireless communication between a transmitter and a receiver comprises transmission of composite channels handled by a physical layer, a set of transmission channels being at the physical layer The layer performs multiple transmission. When the entity data is requested, each transport channel carries data on the timing frame in the transport block unit generated by the control layer. Each transport channel is characterized by a transport format identified by a transport format pointer (TFI) To define, and the composite channel is defined by means of Transport Format Combination (TFC), the WTRU includes:

a control layer, used to generate the entity data request;

A physical layer, coupled to the control layer, includes:

a digital signal processor configured to derive a valid transport format combination pointer based on candidate transport format combinations listed in the database and expected and received data on the transport channel; wherein the transport format combination pointer is based on matching the deriving a single remaining candidate transport format combination of the transport format pointer for the transport channel on a composite channel; and whereby the digital signal processor rejects all physical data requests corresponding to a frame where at least one transport channel has zero data and no A pointer to the transfer format defined for zero data.

10. The WTRU as claimed in claim 9, wherein the transmitter is a base station for a CDMA network.

11. The WTRU of claim 9, wherein the transmitter is a user equipment (UE) for a CDMA system.

12. A communication data processing method for a wireless transmit/receive unit (WTRU) configured to process data of multiple data channels generated by a control layer, which is processed by a physical layer for transmission of data frames composite channels in groups, wherein each group of transmission data frames has transmission data formatted in one of a plurality of predetermined formats, wherein the predetermined format is a group of data frames identifying data to be included for transmission on the composite channel, the method Include:

selectively receiving, via the physical layer, from the control layer formatted data on a data channel for transmission of a composite channel data frame; and

Determine a transmission format for the received data, including:

comparing the received data with a known predetermined channel combination format;

wherein data is received on all channels defined by the known predetermined channel combination format, identifying the known predetermined channel combination format as the transmission format; and

Wherein when data is not received on all channels defined by the known predetermined channel combination format, determine whether the unreceived data matches a different predetermined channel combination format, and if so, select the different predetermined channel combination format as the transmission format .

13. The method according to claim 12, wherein the WTRU is a website for a Code Division Multiple Access network, wherein determining a transmission format for the received data includes selecting a system default format as the Known predetermined format.

14. The method of claim 12, wherein the WTRU is a user equipment for a code division multiple access network, wherein the physical layer is selected from the control layer for transmission on a composite channel The received data of the data channel of the group of data frames comprises receiving the known predetermined format from the control layer.

15. The method according to claim 12, wherein the WTRU is configured for a code division multiple access system, the control layer is a medium access control (MAC) layer, and the data channel is a transmission Channels (TrCHs), the composite channel is a coded composite transport channel (CCTrCH), and a transport format combination pointer (TFCI) is associated with each predetermined format of the coded composite transport channel, the method further includes transmitting the corresponding predetermined transport format A transport format combination pointer (TFCI) for the composite channel data frame group in which the received data is transmitted.