CN100369393C - Hollow transmission for mat combination processing method for use in time-division duplex system - Google Patents

Hollow transmission for mat combination processing method for use in time-division duplex system Download PDF

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Publication number
CN100369393C
CN100369393C CNB2005100731991A CN200510073199A CN100369393C CN 100369393 C CN100369393 C CN 100369393C CN B2005100731991 A CNB2005100731991 A CN B2005100731991A CN 200510073199 A CN200510073199 A CN 200510073199A CN 100369393 C CN100369393 C CN 100369393C
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transformat combination
empty
combination
special burst
transformat
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CNB2005100731991A
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CN1688115A (en
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丁美玲
张昱
赵喆
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NANTONG HAOTAI WELDING MATERIAL CO., LTD.
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ZTE Corp
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Abstract

The present invention discloses a processing method for the blank transmission format combination in a time division duplexing system, which belongs to the field of code division multiple access mobile communication. In the present invention, a network terminal transmits the transmission format combination set to a base station and a user facility in a definite mode, both parties of communication contract a transmission format combination indicated value for a special emergent mode. Whether the blank transmission format combination is not provided with a transmission block or not is used for judging whether the special emergent mode or not. If the blank transmission format combination is not provided with a transmission block, the special emergent mode is adopted, and the discontinuous transmission processing needs carrying out to data; if the blank transmission format combination is provided with a transmission block, both of the communication parts carry out processing in a normal data transmission mode. The present invention improves the efficiency of a system. Meanwhile, both of the communication parties can also make full use of the information service of the blank transmission format combination on the application and the detection of the discontinuous transmission of a communication link, and the present invention can be used for synchronous control, synchronous / desynchronous detectioin and power control.

Description

The processing method of tdd systems hollow transformat combination
Technical field
The present invention relates to code division multiple access (CDMA) mobile communication technology field, relate in particular to the processing method of time division CDMA (TD-CDMA) mobile communication system and TD SDMA (TD-SCDMA) mobile communication system hollow transformat combination.
Background technology
For a kind of communication system, it is a key that communicating pair adopts consistent information format, and when relating to multiple information format when available, then transmitting terminal need be indicated the information format of current employing to the other side by certain mode, and guarantees the correctness of indication as possible.Comprise the information that is used to indicate host-host protocol and data packet length in the IP heading as Internet protocol.Here relate to the problem of two aspects of information format and information format indication.
In mobile communication system, concurrent in the time of service bearer and signaling bear and multiple service supporting is a kind of urgent demand, gsm system (Global System for Mobile Communications, global system for mobile communications) by the information area on the physical channel is divided, part realizes the concurrent of service bearer and signaling bear, but this concurrent mode is short of flexibility, and multiplexing efficient is also lower.Thereby, at 3GPP (Third GenerationPartnership Project, 3G (Third Generation) Moblie standardization body) in Ding Yi 3G (Third Generation) Moblie (3G) standard, carrying can be mapped to transmission channel, and a plurality of transmission channels can finally be combined into the coded combination transmission channel through after the rate-matched, and make the as a whole physical channel that is mapped to.This just makes to have possessed the ability of transmitting the carrying that a plurality of different service qualities (QoS, Quality of Service) require simultaneously between system and the terminal.
The protocol layer of the air interface of TDD system (Time Division Duplex, time division duplex) is divided into three layers: the bottom is a physical (L1), and being positioned on the physical layer is data link layer (L2) and network layer (L3).Wherein data link layer comprises two sublayers on control plane, i.e. Media Access Control (MAC, MediaAccess Control) and control sub layer of wireless link (RLC, Radio Link Control).Referring to Fig. 1, transmission channel is physical layer provides an interface from service to MAC, exchange with this minimum information unit of transmission block between MAC and L1, and the some transmission blocks that use same transmission channel to exchange between MAC and L1 at one time are called transport block set, and the time interval that transport block set arrives is called Transmission Time Interval.On a transmission channel, L1 is called transformat (TF to MAC (or MAC is to L1) sends transport block set in a time interval form, TransportFormat), the a certain moment in communication process, each transmission channel will adopt a kind of defined TF, thereby form a kind of transformat combination (TFC, Transport Format Combination), this TFC is with the information format of unique definite current time.
For modularization and standardized needs, it is limited that the quantity of the optional TF of each transmission channel is defined as, thereby the quantity of TFC also is limited, all alternative TFC then are defined as a transport format combination set (TFCS, Transport Format Combination Set).TFC has uniqueness in TFCS arbitrarily, and 3GPP has also defined some elements that must comprise among the TFCS simultaneously, to guarantee the integrality of TFCS, as the TFC (promptly all transmission channels that relate to all do not have data to send) of sky.After the TFCS definition, we just can be numbered the TFC among the TFCS by certain mode, and correspondingly, this numbering is called as transformat combination indication (TFCI, Transport Format Combination Indicator).In communication process, originator is informed destination's (as by specific fields on the particular physical channel etc.) by certain mode with this numbering, and guarantee as possible that by certain mechanism this numbering can correctly be understood (as TFCI is carried out special coding) by the destination, the destination just can adopt correct signal format to resolve current Content of Communication, and then realizes both sides' information exchange.
Under the prerequisite that does not influence performance, the load that TFCI produced is few more, and it is just big more that communicating pair can be used for the mutual ability of useful information.If the value of TFCI can be 0～2 NArbitrary value in-1 (N is a natural number) then adopts the TFCI of N bit can represent 2 at most NIndividual TFC.And if the value of TFCI can not be 0～2 NSome particular values in-1, then the TFCI of N bit can represent 2 at most N-1 TFC.
The application of special burst in the TDD system (for a kind of special processing of the empty TFC that comprises the zero transmission block) has been introduced a new problem for TFC is set.Special burst is found in international patent specification WO03034599 disclosed " System for Improved Power Savings during Full DTX Mode of Operation inthe Downlink " and international patent specification WO03032521 disclosed " System and Method forUtilizing Unused Capacity in the Data field of a Special Burst ", wherein the latter has indicated special burst and need use specific TFCI value and identify, and this TFCI value can not be used to identify other TFC, and then makes that the size of TFCS is 2 NSituation under, system need adopt the TFCI of N+1 bit, will make physical channel expend the transmission that more resources is used for TFCI after TFC encodes, and for example needs extra 16bits; On the other hand, this may cause sky TFC to have two TFCI values, has destroyed the requirement of uniqueness, perhaps has influence on the integrality of TFCS; The information of TFCS does not reflect the operating position of discontinuous transmission yet simultaneously.
Summary of the invention
The size that the objective of the invention is to solve at TFCS is 2 NThe time, the TDD system will expend more resources be used for TFCI be difficult to alternately, simultaneously guarantee that the information of the integrality of TFCS and uniqueness, TFCS does not reflect the problem and shortage of the operating position of discontinuous transmission yet, provide a kind of reasonable, simple and direct and improved the processing method of the tdd systems hollow transformat combination of system behavio(u)r.
For addressing the above problem, the present invention adopts following technical scheme: the processing method of this tdd systems hollow transformat combination, network terminal sends transport format combination set to base station and subscriber equipment in some way, the transformat combination indicated value that communicating pair network terminal and user side agreement special burst use; Utilize empty transformat combination whether to comprise the zero transmission block and judge whether to adopt special burst: if empty transformat combination comprises the zero transmission block, then adopt special burst, need to prepare data are carried out discontinuous transmission process; If not, then communicating pair all can be handled according to normal transfer of data.
According to the invention described above technical scheme, the validity that integrality and the uniqueness of TFC in TFCS by TFCS can further guarantee said method.Particularly, if the empty TFC among the TFCS comprises the zero transmission block, then special burst can be applied when empty TFC; Otherwise, if related empty TFC comprises non-zero transmission block (but the size of total transmission block is zero), then special burst can not used on the particular physical channel of carrying TFCI, thereby communicating pair all can handle according to normal transfer of data, thereby has improved the effect of system.Meanwhile, communicating pair also can make full use of application and the detection of the information service of sky transformat combination in the discontinuous transmission of communication link, and then serves Synchronization Control, synchronous/detection of loss of mains and power control.
Description of drawings
Fig. 1 is the schematic diagram of TFC principle;
Fig. 2 is the flow chart of the present invention when working as empty transformat combination being in appointed position in transport format combination set.
Fig. 3 is the flow chart of the present invention when empty transformat combination is in non-appointed position in transport format combination set.
Embodiment
Communicating pair needs the transformat combination indicated value of agreement special burst use earlier; Afterwards, the pairing transformat combination indicated value of empty transformat combination is set to identical with about definite value that the transformat combination that described special burst uses is indicated.Below in conjunction with accompanying drawing and two specific embodiments, further specify technical characterictic of the present invention and function characteristics, purpose is that the present invention can be described better, but is not to be used for limiting protection scope of the present invention.
Execution mode one:
Referring to Fig. 2, embodiments of the present invention one can be sketched and be: network terminal is when receiving the subscriber equipment TFCS relevant with link, all the time on the position that the empty TFC system of being placed on is made an appointment, about definite value of the transmission packed format indication that communicating pair will use with special burst be provided with this TFC.For example: can utilize the TFCI value is 0 to indicate special burst, simultaneously the 1st TFC is appointed as sky TFC, and then the transmission packed format indicated value of the 1st TFC correspondence of communicating pair is set to 0.Then according to order different TFCI values being set for remaining TFC gets final product.
Before the enforcement, communicating pair has promptly been arranged the employed TFCI value of special burst and has been X, and empty TFC residing position in TFCS is Y.Carry out following steps then:
Step 11, network terminal are placed on empty TFC the position of the agreement among the TFCS of a certain direction link.
Step 12, network terminal sends TFCS to base station and subscriber equipment in some way.
Step 13, communicating pair is thought sky TFC with Y TFC.
Step 14, it is zero that network terminal and subscriber equipment are inquired about the transmission block number whether empty TFC contain, if zero, think that then special burst will be used on this direction link, send the transfer function that a side opens special burst, the recipient then carries out the detection of discontinuous transmission.If empty TFC contains non-zero transmission block, promptly the physical channel on this link transmits all the time, send a side and need not carry out the transmission (except the Beacon channel) of special burst, the recipient can not receive special burst yet, need not carry out the detection of discontinuous transmission, and can conveniently carry out Synchronization Control, synchronous/detection of loss of mains and power control.
Step 15, the TFCI value of Y TFC correspondence of communicating pair is set to X.
The TFCI value that step 16, communicating pair are different for other TFC is provided with.Generally get final product, but the span that need to guarantee TFCI subtracts between 1 in 0 to TFCS size according to order.
Execution mode two:
Referring to Fig. 3, embodiments of the present invention two can be sketched and be: network terminal is when receiving the subscriber equipment TFCS relevant with link, do not have a mind to be placed on empty TFC on the certain location, communicating pair will be by the empty TFC of search among the TFCS, and about definite value of the transmission packed format indication of using with special burst is provided with this TFC.For example: can utilize the TFCI value is 0 to indicate special burst, is in the 2nd position if the communication party searches empty TFC, and then communicating pair will be indicated the 2nd TFC with 0, then according to order different TFCI values will be set for remaining TFC and get final product.
In this case, communicating pair has been arranged the employed TFCI value of special burst X in advance, but does not arrange empty TFC residing position in TFCS.Therefore, as shown in Figure 3, compare with execution mode one, most of step here is identical with execution mode one, and different steps is:
Step 21, network terminal are placed on empty TFC the optional position among the TFCS of a certain direction link.
Step 23, network terminal and subscriber equipment search sky TFC in all TFC.
Above-mentioned embodiment describes the present invention with preferred embodiment, but the example of this visualization of just lifting for the ease of understanding should not be considered to be limitation of the scope of the invention.Equally, according to the description of technical scheme of the present invention and preferred embodiment thereof, can make various possible being equal to and change or replacement, and all these changes or replacement all should belong to the protection range of claim of the present invention.

Claims (5)

1. the processing method of a tdd systems hollow transformat combination, network terminal sends transport format combination set to base station and user side in some way, it is characterized in that the transformat combination indicated value that communicating pair network terminal and user side agreement special burst use; Utilize empty transformat combination whether to comprise the zero transmission block and judge whether to adopt special burst: if empty transformat combination comprises the zero transmission block, then adopt special burst, need to prepare data are carried out discontinuous transmission process; If not, then communicating pair all can be handled according to normal transfer of data.
2. the processing method of tdd systems hollow transformat combination as claimed in claim 1 is characterized in that, this method is further comprising the steps of:
The pairing transformat combination indicated value of the empty transformat combination of communicating pair is set to identical with about definite value of the transformat combination indication that described special burst uses.
3. the processing method of tdd systems hollow transformat combination as claimed in claim 2, it is characterized in that, described empty transformat combination indicated value is set to identical with about definite value of the transformat combination indication that special burst uses, be specially: when empty transformat combination was in appointed position in transport format combination set, communicating pair all was set to about definite value of the transformat combination indication of described special burst use to the transformat combination indicated value of described locational transformat combination correspondence.
4. the processing method of tdd systems hollow transformat combination as claimed in claim 2, it is characterized in that, the value of described empty transformat combination indication is set to identical with about definite value of the transformat combination indication that special burst uses, be specially: empty transformat combination is in non-appointed position in transport format combination set, communicating pair is all searched for the position of empty transformat combination, and transformat combination indicated value that should sky transformat combination correspondence is set to about definite value of the transformat combination indication that described special burst uses.
5. as the processing method of the described tdd systems hollow of arbitrary claim transformat combination in the claim 2 to 4, it is characterized in that the transformat combination indicated value that described communicating pair agreement special burst uses can be 0～2 NArbitrary value in-1, wherein N is for representing the minimum field figure place of all transformat combination; Communicating pair is different from the transformat combination indicated value of described about definite value for other transformat combination setting.
CNB2005100731991A 2005-05-31 2005-05-31 Hollow transmission for mat combination processing method for use in time-division duplex system Expired - Fee Related CN100369393C (en)

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Publication number Priority date Publication date Assignee Title
CN101030809B (en) * 2006-02-27 2011-04-13 华为技术有限公司 Transmitting method for uplink special physical control channel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030086379A1 (en) * 2001-10-19 2003-05-08 Terry Stephen E. User equipment having improved power savings during full and partial DTX modes of operation
CN2579090Y (en) * 2001-10-11 2003-10-08 交互数字技术公司 User facilities for using special burst unused capacity in data field
CN1572101A (en) * 2001-10-19 2005-01-26 美商内数位科技公司 User equipment for improved power savings during full DTX mode of operation in the downlink

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2579090Y (en) * 2001-10-11 2003-10-08 交互数字技术公司 User facilities for using special burst unused capacity in data field
US20040258009A1 (en) * 2001-10-11 2004-12-23 Interdigital Technology Corporation System and method for using unused arbitrary bits in the data field of a special burst
US20030086379A1 (en) * 2001-10-19 2003-05-08 Terry Stephen E. User equipment having improved power savings during full and partial DTX modes of operation
CN1572101A (en) * 2001-10-19 2005-01-26 美商内数位科技公司 User equipment for improved power savings during full DTX mode of operation in the downlink
CN2686253Y (en) * 2001-10-19 2005-03-16 交互数字技术公司 Time division duplexing or time division synchronous code division multiple access user equipment

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