CN1798444A - Method for transmitting down going scheduling information in use for time division duplexing system in low rate - Google Patents
Method for transmitting down going scheduling information in use for time division duplexing system in low rate Download PDFInfo
- Publication number
- CN1798444A CN1798444A CN 200410104650 CN200410104650A CN1798444A CN 1798444 A CN1798444 A CN 1798444A CN 200410104650 CN200410104650 CN 200410104650 CN 200410104650 A CN200410104650 A CN 200410104650A CN 1798444 A CN1798444 A CN 1798444A
- Authority
- CN
- China
- Prior art keywords
- bit
- rate
- channel
- time
- code
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The method includes following steps: the base station sends out the suffix code indicating bits of TFRCI and the downlink scheduling information of time-domain including n bits; the downlink scheduling bit stream with n bits is encoded by using convolution code whose encoding rate is 1/3 or block code; a rate adaptation operation is made for the encoded bits to form a bit stream with 88-m bits; the second interleave is made for the bit stream with 88-m bits; TPC bits and SS bits is inserted into the interleaved bit stream to form the data burst format that is transmitted to the appointed UE in the appointed downlink schedule control channel. The invention sets a time domain in the downlink schedule signaling to implement flexible configuration for time domain occupied by EUCH and so to optimize the schedule strategy of Node B.
Description
Technical field
The present invention relates to code division multiple access (be called for short CDMA) mobile communication system, relate to particularly in the TDD CDMA mobile communication system of 1.28Mcps low rate (being called for short LCR-TDD), be used for the transmission method of the down dispatch information that up channel strengthens.
Background technology
Third generation partner plan (being called for short 3GPP) is a technology standardization tissue of implementing 3-G (Generation Three mobile communication system), and wherein the 3G (Third Generation) Moblie technical standard comprises Frequency Division Duplexing (FDD) (FDD) and time division duplex (TDD) pattern.3GPP is from setting up so far, respectively at having announced the Frequency Division Duplexing (FDD) (FDD) that mainly comprises 3.84Mcps and the 3-G (Generation Three mobile communication system) technical standard of time division duplex (HCR-TDD) in October, 1999, is called for short Release 99; Announce the 3-G (Generation Three mobile communication system) technical standard of the time division duplex (LCR-TDD) of the Frequency Division Duplexing (FDD) (FDD), time division duplex (HCR-TDD) and the 1.28Mcps that mainly comprise 3.84Mcps in 2000 again, be called for short Release 4; And announced again that in calendar year 2001 the interpolation high-speed data packets inserts (HSDPA) in the 3-G (Generation Three mobile communication system) technical standard of the time division duplex (LCR-TDD) of Frequency Division Duplexing (FDD) (FDD), time division duplex (HCR-TDD) and the 1.28Mcps of 3.84Mcps, is called for short Release 5.At present, 3GPP is implementing the Frequency Division Duplexing (FDD) (FDD) of 3.84Mcps, the 3-G (Generation Three mobile communication system) up link technique for enhancing of the time division duplex (LCR-TDD) of time division duplex (HCR-TDD) and 1.28Mcps is given and being ground, and expection will be in formal research up link technique for enhancing standardization effort on the basis that above-mentioned up link technique for enhancing is given grinding in 2004, the technical scheme that is produced will be contained in the Frequency Division Duplexing (FDD) (FDD) of following 3.84Mcps, the 3-G (Generation Three mobile communication system) technical standard of the time division duplex (LCR-TDD) of time division duplex (HCR-TDD) and 1.28Mcps is called for short Release 6.
The no matter Frequency Division Duplexing (FDD) (FDD) of 3.84Mcps and the up enhancement techniques of time division duplex (HCR-TDD) in the 3-G (Generation Three mobile communication system), or the up link technique for enhancing of the time division duplex (LCR-TDD) of 1.28Mcps, its purpose all is by to the Frequency Division Duplexing (FDD) (FDD) by above-mentioned 3.84Mcps, the coverage of the capacity of the up link that the effective management of uplink transmission resource enforcement of the wireless network that 3-G (Generation Three mobile communication system) constituted of the time division duplex (LCR-TDD) of time division duplex (HCR-TDD) and 1.28Mcps and planning improve said system and the wireless area of said system is so that be suitable for the data service stronger to transmitting burst; In addition, by improving the performance of uplink dedicated transmission channel, thereby improve the coverage rate and the throughput of sub-district, improve uplink speed, reduce uplink delay.
The discussion that 3GPP strengthens about up channel at first is Frequency Division Duplexing (FDD) (FDD) beginning from 3.84Mcps, in June, 2003, RAN20 meeting agree the to begin one's study up channel enhancing of time division duplex (being called for short TDD) system.The main project of research comprises the scheduling of base station (Node B) control, the request retransmission of mixing (being called for short HARQ) etc., and wherein HARQ is that automatic re-transmission and chnnel coding with packet combines a kind of method of carrying out transfer of data.Up channel strengthens needs some new up signalings, and they are that scheduling is relevant, that HARQ is relevant or may need in the future.
Dispatching method about base station (Node B) control, at fdd mode, 3GPP TR25.896V0.4.2 has comprised two kinds of main methods: a kind of is the rate scheduling method (also being two threshold scheme) of base station (Node B) control, and another kind is the speed and the time scheduling method of base station (Node B) control.
In order to support the rate scheduling method of base station (Node B) control, two new message are introduced into: one is the speed application by name up signaling of (being called for short RR), is used for the speed threshold values of UE to Node B application lifting oneself; Another is that speed by name is replied the downlink signaling of (being called for short RG), is used for Node B and tells whether terminal (UE) allows the speed threshold values of its lifting oneself.The rate scheduling method of Node B control, its main thought is: each UE is in the initialization procedure of transmission channel, base station controller (RNC) is distributed to a transmission format composite set of UE (TFCS), and notify UE and control the base station (Node B) of described UE, RNC also provides two threshold values respectively simultaneously: one is the UE threshold value, and another is a Node B threshold value.This TFCS has comprised multiple transmission rate.In communication process, the transmission rate that UE is free to select to be no more than the UE threshold value is TFC, if UE need adopt the TFC bigger than UE threshold value, then UE improves described UE threshold value by the up signaling of RR to Node B request.Whether decision allows to improve the threshold value of described UE to Node B according to current factors such as interference, if allow, Node B tells UE by the RG downlink signaling.Attention UE threshold value in this process can not surpass Node B threshold value.
The time and the rate scheduling scheme of second kind of base station (Node B) control, UE is before carrying out transfer of data, some information need be issued Node B to carry out the request of transfer of data, Node B is according to the information of receiving, calculate the quality of the wireless channel of UE, and, to whether allowing this UE to transmit, carry out transfer of data etc. with great speed and unify scheduling and arrange according to the situation of the request of current noise situation and other UE.Concrete process is as follows:
The first step: UE sends the request of transfer of data in the uplink scheduling information control channel.The information that sends comprises the state of the data buffer of UE, the power rating of UE or the maximum power capability of UE.
Second step: Node B monitors the length of data queue of each UE report and the information of transmitting power, is selecting the few UE even can be that a UE transmitted in the time period of next dispatching cycle of trying one's best under the condition that sub-district (Cell) noise allows.Node B replys selected UE by descending scheduling specified control channel.Institute's information transmitted comprises: allow transmission time and time period, maximum other the schedule information such as transmitting power that allows.
The 3rd step: the UE that receives communication with dispatch instructions is specifying constantly and in the time period, is pressing specified rate transmissioning data.
Speed and time scheduling method have the specific speed scheduling to control the ability of this sub-district noise level more accurately, that is to say the maximum capacity that can make this sub-district.Its cost is to need the schedule information of transmission and instruct more complicated than simple rate scheduling.
The TDD system is different with the FDD system, is that code word is limited.Whether whether above-mentioned two kinds of schemes are fit to TDD, perhaps need new scheduling scheme still to be in the research discussion.A kind of possible scheme just is based on the scheduling scheme of time, speed and physical resource (comprise code word and time system).
Strengthen about the up channel of TDD system, divide up channel to HCR-TDD to strengthen again and the up channel of LCR-TDD is strengthened.The physical channel structure of HCR-TDD and LCR-TDD is different fully.
With reference to standard 25.221, Fig. 1 provides the physical channel structure of LCR-TDD.As shown in Figure 1, the physical channel of LCR-TDD adopts four-layer structure: System Frame Number (Frame), radio frames (RadioFrame), subframe (Sub Frame) and time slot (Time Slot).The transmission intercal of a corresponding 10ms of radio frames comprises two identical in structure subframes, and each subframe is long to be 5ms, it is by 7 conventional time slots (TS0-TS6) and 3 special time slot (DwPTS, GP UpPTS) forms, and conventional time slot is as transmitting user data and control information.In these 7 conventional time slots, time slot 0 (TS0) always comes the transmitting system broadcast message as descending time slot regularly, and time slot 1 (TS1) always is used as ascending time slot regularly, and other conventional time slot can be configured to upstream or downstream as required neatly, to realize the transmission of asymmetric traffic.
Described 7 conventional time slots have identical structure of time slot, also are data burst (burst) structure, comprise two data fields (Data Symbols), a training sequence territory (Midamble) and the spatial domain (GP) as the time slot protection.The data field of a data burst is used to carry user data and the high-rise control command from transmission channel, and certainly for dedicated channel, the part symbol of data field also may be used to the signaling of physical layer for transmission.In LCR-TDD, exist three types physical layer signaling: power control command (TPC), transformat combination indication (TFCI) and simultaneous bias control character (SS).The transmitting continuous time of a data burst is a time slot, in the time slot a plurality of physical channels can be arranged, (OVSF) distinguishes by channel code, therefore transmitter can on synchronization, same frequency, launch a plurality of data bursts with correspondence the different channels in the same time slot.
Two data fields are distributed in the two ends of Midamble sign indicating number symmetrically, and the length in every territory is 352 chips (chips), and the length of Midamble sign indicating number is 144 chips (chips).Each data field institute energy data carried by data symbolic number is relevant with employed spreading factor (SF), and the employed spreading factor of up direction can be 1,2,4,8,16 (channel code lengths).
The form of the data burst that provides according to standard 25.221 (time slot format is with reference to table 8G), TPC and SS transmit simultaneously, and for each user, each TPC order transmits once in a subframe at least.For each distributed time slot, specify whether transmit TPC by high-level signaling, if in a time slot a plurality of code channels are arranged, the given again additional parameter N of high level
TPCIndicate the corresponding physical channel whether to transmit TPC.
Regulation and stipulation, for many yards transmission, each UE can use two uplink physical channels simultaneously at most in being in the time of one, and these two parallel physical channels use two different channel code to distinguish.Be when transmission for a long time, each the time be that employed physical resource is identical.
In sum, in the LCR-TDD system, the bit number (data rate) that each physical channel can carry and the type of data burst, the spreading factor of selecting for use, modulation system, the shared bit number of physical layer signaling TPC, TFCI that is carried, and it is relevant to be used to carry the required bit number of high-level signaling.In patented invention [the uplink scheduling method for transmitting signaling that is used for the low rate tdd systems], provided the possible desired data transmission rate collection of UE and the building method of subclass, it has also covered the peak transfer rate that Node B may allow UE to use.
In the up enhanced scheme of FDD, down dispatch information mainly comprises RR, allows the moment and the time period of transmission, the maximum schedule informations such as transmitting power that allow.
The TDD system is different with FDD, and up code word is limited, and promptly all activated UE shares a sign indicating number collection in certain time system.So in the scheduling strategy of Node B, not only want scheduling time, speed, also should dispatch the operable physical resource of UE, promptly channel code and the time system.Therefore in the descending scheduling signaling, should comprise channel code and the time information such as system.
At the enhanced scheme of TDD, down dispatch information should comprise those information, how to transmit, and does not also all have to determine.
Summary of the invention
The transmission method that the purpose of this invention is to provide the down dispatch information of a kind of 1.28Mcps of being used for low rate time division duplex mobile communication system (being called for short LCR-TDD) up channel enhancing.
For achieving the above object, a kind of transmission method that is used for the down dispatch information of low rate tdd systems comprises step:
A) base station send the subscript coding indication bit comprise rate channel code table TFRCI and the time be the down dispatch information of information, n bit altogether;
B) with described n down dispatch information bit stream, adopting code rate is that 1/3 convolution code or block code are encoded;
C) bit after will encoding is sent into rate adaptation operating, forms the data flow of 88-m bit;
D) with the data flow of 88-m bit of described generation, carry out interweaving the second time;
E) in the bit stream after interweaving, insert TPC bit and SS bit and form the data burst form, and on the descending scheduling control channel of appointment, send to appointment UE.
It is the territory that the present invention sets up for the moment in the descending scheduling signaling, can realize the flexible configuration of system when EUCH is shared, thereby can optimize the scheduling strategy of Node B.Information sets such as maximum data rate, channel code, code rate are made into table, adopt the implicit representation method, Node B only need send the subscript coding indication of corresponding option, and therefore required downlink signaling bit is less.At each scheduling interval, physical resources such as system and channel code when Node B can both redistribute have increased the flexibility of Node B scheduling, and physical resource can be fully used.The present invention can increase the throughput of sub-district, and the business that improves system covers.
Description of drawings
Fig. 1 is the physical channel structure figure of LCR-TDD;
Fig. 2 is a kind of descending scheduling method for transmitting signaling that up channel strengthens that is used for;
Fig. 3 be in the descending scheduling signaling that strengthens of up channel the time be a kind of method for expressing in territory;
Fig. 4 is the main information that the descending scheduling control channel of up channel enhancing comprises;
Fig. 5 is the main information example that the descending scheduling control channel of up channel enhancing comprises;
Fig. 6 is a kind of descending scheduling method for transmitting signaling example that up channel strengthens that is used for.
Embodiment
The present invention proposes in the LCR-TDD system, a kind of descending scheduling method for transmitting signaling that is used for the up channel enhancing, and with reference to Fig. 2, this method mainly comprises the steps:
201 steps of described figure: the down dispatch information (SA) that base station (Node B) sends, mainly comprise the maximum data rate indication that allows the user to select for use, promptly the subscript of rate channel code table TFRCI coding indication bit and the time be information, n bit altogether;
202 steps of described figure: with described n SA bit stream, adopt certain coded system, for example code rate is that 1/3 convolution code or block code etc. are encoded;
203 steps of described figure: coded bit is sent into rate adaptation operating, form the data flow of 88-m bit;
204 steps of described figure: with the data flow of 88-m bit of described generation, the mode that interweave with the second time that provides according to standard 25.222 carries out interweaving the second time;
205 steps of described figure: in the bit stream after interweaving, insert TPC bit and SS bit (m bit altogether), form data burst form as shown in the figure, on the descending scheduling control channel of appointment, send to and specify UE.
In wherein said 201 steps, the down dispatch information of Node B transmission is an information when comprising.In LCR-TDD, 7 conventional time systems are arranged in the subframe, in these 7 conventional time slots, time slot 0 (TS0) always comes the transmitting system broadcast message as descending time slot regularly, and time slot 1 (TS1) is always regularly as ascending time slot, other conventional time slot can be configured to upstream or downstream as required neatly, to realize the transmission of asymmetric traffic.Therefore have at most 6 time slots (TS1, TS2 ..., TS6) be used for up channel and strengthen professional (EUCH).Be configuration flexibility during consideration, below we are a kind of method for expressing in territory when providing.
With reference to Fig. 3, one shared (1≤N≤6) bit represent N possible the time system (TS1-TS6) configuring condition, the value of each bit can strengthen professional (EUCH) for the corresponding time system of 0 or 1,1 expression can be used for up channel, 0 is not used in EUCH.N=6 for example is that the territory needs 6 bits altogether in the time of then, expression from the time be 1 then to be 6 configuring condition.
This time slot method for expressing, Node B can realize to uplink service strengthen the time system flexible configuration, can be when discontinuous system's (time system) arbitrarily distribute to EUCH.If only allowing several time slots (less than 6) to be used for up channel strengthens professional, then high level can be by being provided with the value of N, for example N=3 then represents to have only (TS1-TS3) time slot may be used for up channel and strengthens business, can represent gap information with less bit thereby make in the downlink signaling.
Except time system, in order to make UE select suitable speed, suitable transformat to transmit according to the scheduling result of Node B, downlink signaling information should comprise that also the maximum speed that allows, UE are in the operable channel code of next scheduling interval, code rate (ratio of the physics bit that valid data information bit that the user sends and shared physical channel can carry) and modulation system etc.In EUCH FDD, QPSK is used, and in like manner we think that also only QPSK is used in EUCH TDD, so Node B does not need to indicate the modulation system that will adopt to UE again.
If the expression that in downlink signaling, shows appeal information, promptly set up the maximum speed that allows, spreading factor, UE in corresponding territory such as the operable channel code of next scheduling interval, code rate respectively, the then required information bit that takies will be very many.In fact, the value in these territories conditions each other, and for example some data rate can only corresponding specific spreading factor and channel code, and the effective combination that is to say these territory values is less comparatively speaking.Therefore the present invention proposes to adopt the latent mode of showing to represent may effectively making up of these territories, these is effectively made up form corresponding table, is called for short rate channel code table TFRCI, presses the big or small ordering of data rate, indicates a certain effective combination with corresponding subscript then.If UE and Node B end all keep this table, then UE can find out information such as its corresponding maximum rate, operable channel code and code rate according to the given subscript indication of Node B in respective table.
Also be about to the UE desired data Speedometer Drive that patent [the uplink scheduling method for transmitting signaling that is used for the low rate tdd systems] provides and increase by row: channel code forms rate channel code table TFRCI.The physical number of bits that the data field (field, list of items) that comprises of TFRCI table be speed numbering, spreading factor, code rate like this, system can carry when single, the size of transmission block, data rate (speed of maximum permission), UE are in the operable channel code of next scheduling interval.In fact, UE can be known corresponding spreading factor by channel code information; The physical number of bits that system can carry in the time of can inferring list by data rate and code rate and the size of transmission block, therefore in order to reduce UE and Node B end for preserving required buffering (buffer) expense of TFRCI table, we can simplify rate channel sign indicating number TFRCI table, promptly only keep code rate, data rate (the maximum speed that allows), UE in the several territories of the operable channel code of next scheduling interval.For the ease of a certain clauses and subclauses in the look-up table, can additionally increase a subscript coding indication (binary representation of bullets correspondence).
So UE end and Node B hold the contained territory (lising) of rate channel sign indicating number TFRCI table of required reservation to be: code rate, data rate (the maximum speed that allows), UE are in operable channel code of next scheduling interval and the indication of subscript coding.
If comprise Y element among the rate channel code table TFRCI, then Node B can use in downlink signaling
Bit comes to allow information such as its maximum data rate of selecting for use, operable channel code and code rate to the UE indication.
In sum, with reference to Fig. 4, the n bit down dispatch information (SA) described in 201 steps of Fig. 2 specifically should comprise: the subscript of the rate channel code table TFRCI of M bit coding indicate territory and N (1≤N≤6) bit the time be the territory; N can be specified flexibly by high level, but also default settings is a fixed value.N is big more, and Node B is just flexible more to the configuration of time system, and correspondingly required downlink signaling bit number is also more.
In 205 steps of described Fig. 2, the characteristics of described descending scheduling control channel are: selecting one for use, to spread to 16 descending code word, time slot format be that form 5, the modulation system that table Table 8F provides in the standard 25.221 is QPSK; Consider possible TPC and SS bit (being made as the m bit), will have 88-m bit space to be used to express described n SA information bit so on this channel.
Embodiment
The present invention mainly is about in the LCR-TDD system, a kind of descending scheduling method for transmitting signaling that is used for the up channel enhancing is so concrete scheduling mode, uplink scheduling signaling content and the transmission means etc. of relevant Node B are omitted to some extent in the example below.
Owing to is the territory when having comprised in downlink signaling information, so rate channel sign indicating number collection is a situation only need consider list the time.During the list that provides with reference to patented invention [the uplink scheduling method for transmitting signaling that is used for the low rate tdd systems] is situation, when Transmission Time Interval (TTI) is 10ms or 5ms, is used to dispatch the expected rate collection of the UE of requirement, as table 1.(note: simple in order to represent, among the present invention the expected rate collection of the TTI correspondence of 10ms and 5ms is represented that with a table because there only have the transmission block size to be listed as in both cases to be different, other row are all identical).
Table 1. is used to dispatch the expected rate collection TTI 10ms and the 5ms of requirement under single time slot situation
| The speed numbering | SF | Code rate | Physics bit (every time slot) | Transmission block size/5ms TTI | Transmission block size/10ms TTI | Data rate (kbps)/5ms and 10ms |
| 0 | 4 | 1/3 | 348 | 116 | 232 | 23.2 |
| 1 | 2 | 1/3 | 700 | 233 | 466 | 46.6 |
| 2 | 2 | 1/2 | 700 | 350 | 700 | 70.0 |
| 3 | 2 | 3/4 | 700 | 525 | 1050 | 105 |
| 4 | 2+4 | 3/4 | 1052 | 789 | 1578 | 157.8 |
| 5 | 2+2 | 3/4 | 1404 | 1053 | 2106 | 210.6 |
| 6 | 2+2 | 1.0 | 1404 | 1404 | 2808 | 280.8 |
According to table 1, we can obtain TTI is that 10ms and TTI are possible data rate of 5ms and channel code collection, shown in table 2 and table 3.
Data rate that table 2. is possible and channel code collection (TTI is 10ms)
| The speed numbering | SF | Code rate | Physics bit (every time slot) | Transmission block size/10ms TTI | Data rate (kbps)/10ms TTI | Channel code | The coding indication |
| 0 | 4 | 1/3 | 348 | 232 | 23.2 | C(4，1) | 0000 |
| 4 | 1/3 | 348 | 232 | 23.2 | C(4，2) | 0001 | |
| 4 | 1/3 | 348 | 232 | 23.2 | C(4，3) | 0010 | |
| 4 | 1/3 | 348 | 232 | 23.2 | C(4，4) | 0011 | |
| 1 | 2 | 1/3 | 700 | 466 | 46.6 | C(2，1) | 0100 |
| 2 | 1/3 | 700 | 466 | 46.6 | C(2，2) | 0101 | |
| 2 | 2 | 1/2 | 700 | 700 | 70.0 | C(2，1) | 0110 |
| 2 | 1/2 | 700 | 700 | 70.0 | C(2，2) | 0111 | |
| 3 | 2 | 3/4 | 700 | 1050 | 105 | C(2，1) | 1000 |
| 2 | 3/4 | 700 | 1050 | 105 | C(2，2) | 1001 | |
| 4 | 2+4 | 3/4 | 1052 | 1578 | 157.8 | C(2，1)+C(4，3) | 1010 |
| 2+4 | 3/4 | 1052 | 1578 | 157.8 | C(2，1)+C(4，4) | 1011 | |
| 2+4 | 3/4 | 1052 | 1578 | 157.8 | C(2，2)+C(4，1) | 1100 | |
| 2+4 | 3/4 | 1052 | 1578 | 157.8 | C(2，2)+C(4，2) | 1101 | |
| 5 | 2+2 | 3/4 | 1404 | 2106 | 210.6 | C(2，1)+C(2，2) | 1110 |
| 6 | 2+2 | 1.0 | 1404 | 2808 | 280.8 | C(2，1)+C(2，2) | 1111 |
Data rate that table 3. is possible and channel code collection (TTI is 5ms)
| The speed numbering | SF | Code rate | Physics bit (every time slot) | Transmission block size/5ms TTI | Data rate (kbps)/5ms TTI | Channel code | The coding indication |
| 0 | 4 | 1/3 | 348 | 116 | 23.2 | C(4.1) | 0000 |
| 4 | 1/3 | 348 | 116 | 23.2 | C(4，2) | 0001 | |
| 4 | 1/3 | 348 | 116 | 23.2 | C(4，3) | 0010 | |
| 4 | 1/3 | 348 | 116 | 23.2 | C(4，4) | 0011 | |
| 1 | 2 | 1/3 | 700 | 233 | 46.6 | C(2，1) | 0100 |
| 2 | 1/3 | 700 | 233 | 46.6 | C(2，2) | 0101 | |
| 2 | 2 | 1/2 | 700 | 350 | 70.0 | C(2，1) | 0110 |
| 2 | 1/2 | 700 | 350 | 70.0 | C(2，2) | 0111 | |
| 3 | 2 | 3/4 | 700 | 525 | 105 | C(2，1) | 1000 |
| 2 | 3/4 | 700 | 525 | 105 | C(2，2) | 1001 | |
| 4 | 2+4 | 3/4 | 1052 | 789 | 157.8 | C(2，1)+C(4，3) | 1010 |
| 2+4 | 3/4 | 1052 | 789 | 157.8 | C(2，1)+C(4，4) | 1011 | |
| 2+4 | 3/4 | 1052 | 789 | 157.8 | C(2，2)+C(4，1) | 1100 | |
| 2+4 | 3/4 | 1052 | 789 | 157.8 | C(2，2)+C(4，2) | 1101 | |
| 5 | 2+2 | 3/4 | 1404 | 1053 | 210.6 | C(2，1)+C(2，2) | 1110 |
| 6 | 2+2 | 1.0 | 1404 | 1404 | 280.8 | C(2，1)+C(2，2) | 1111 |
In order to reduce buffering (buffer) expense of UE and Node B end, according to table 2 and 3, the rate channel sign indicating number TFRCI table after we can obtain to simplify is as table 4.TFRCI table after note simplifying is 10ms with TTI for TTI is that two kinds of situations of 5ms are the same.
Data rate that table 4. is possible and channel code TFRCI table (TTI is 5ms and 10ms)
| Code rate | Data rate (kbps)/5ms and 10ms | Channel code | The |
| 1/3 | 23.2 | C(4，1) | 0000 |
| 1/3 | 23.2 | C(4，2) | 0001 |
| 1/3 | 23.2 | C(4，3) | 0010 |
| 1/3 | 23.2 | C(4，4) | 0011 |
| 1/3 | 46.6 | C(2，1) | 0100 |
| 1/3 | 46.6 | C(2，2) | 0101 |
| 1/2 | 70.0 | C(2，1) | 0110 |
| 1/2 | 70.0 | C(2，2) | 0111 |
| 3/4 | 105 | C(2，1) | 1000 |
| 3/4 | 105 | C(2，2) | 1001 |
| 3/4 | 157.8 | C(2.1)+C(4.3) | 1010 |
| 3/4 | 157.8 | C(2，1)+C(4，4) | 1011 |
| 3/4 | 157.8 | C(2，2)+C(4，1) | 1100 |
| 3/4 | 157.8 | C(2，2)+C(4，2) | 1101 |
| 3/4 | 210.6 | C(2，1)+C(2，2) | 1110 |
| 1.0 | 280.8 | C(2，1)+C(2，2) | 1111 |
Another that provides with reference to patent [the uplink scheduling method for transmitting signaling that is used for the low rate tdd systems] is the expected rate collection example of UE under the situation when single, when Transmission Time Interval (TTI) is 10ms or 5ms, as table 5.
Table 5. is used to dispatch the expected rate collection TTI 10ms and the 5ms of requirement under single time slot situation
| The speed numbering | SF | Code rate | Physics bit (every time slot) | Transmission block size/5ms TTI | Transmission block size/10ms TTI | Data rate (kbps)/5ms and 10ms |
| 0 | 4 | 0.46 | 348 | 160 | 320 | 32 |
| 4 | 0.46 | 348 | 160 | 320 | 32 | |
| 4 | 0.46 | 348 | 160 | 320 | 32 | |
| 4 | 0.46 | 348 | 160 | 320 | 32 | |
| 1 | 2 | 0.46 | 700 | 320 | 640 | 64 |
| 2 | 0.46 | 700 | 320 | 640 | 64 | |
| 2 | 2+4 | 0.46 | 1052 | 480 | 960 | 96 |
| 2+4 | 0.46 | 1052 | 480 | 960 | 96 | |
| 2+4 | 0.46 | 1052 | 480 | 960 | 96 | |
| 2+4 | 0.46 | 1052 | 480 | 960 | 96 | |
| 3 | 2+4 | 0.61 | 1052 | 640 | 1280 | 128 |
| 2+4 | 0.61 | 1052 | 640 | 1280 | 128 | |
| 2+4 | 0.61 | 1052 | 640 | 1280 | 128 | |
| 2+4 | 0.61 | 1052 | 640 | 1280 | 128 |
In like manner, according to table 5, we can obtain TTI is that 10ms and TTI are possible data rate of 5ms and channel code collection, respectively shown in table 6 and table 7.
Data rate that table 6. is possible and channel code collection (TTI is 10ms)
| The speed numbering | SF | Code rate | Physics bit (every time slot) | Transmission block size/10ms TTI | Data rate (kbps)/10ms TTI | The speed numbering | The coding indication |
| 0 | 4 | 0.46 | 348 | 320 | 32 | C(4，1) | 0000 |
| 4 | 0.46 | 348 | 320 | 32 | C(4，2) | 0001 | |
| 4 | 0.46 | 348 | 320 | 32 | C(4，3) | 0010 | |
| 4 | 0.46 | 348 | 320 | 32 | C(4，4) | 0011 | |
| 1 | 2 | 0.46 | 700 | 640 | 64 | C(2，1) | 0100 |
| 2 | 0.46 | 700 | 640 | 64 | C(2，2) | 0101 | |
| 2 | 2+4 | 0.46 | 1052 | 960 | 96 | C(2，1)+C(4，3) | 0110 |
| 2+4 | 0.46 | 1052 | 960 | 96 | C(2，1)+C(4，4) | 0111 | |
| 2+4 | 0.46 | 1052 | 960 | 96 | C(2，2)+C(4，1) | 1000 | |
| 2+4 | 0.46 | 1052 | 960 | 96 | C(2，2)+C(4，2) | 1001 | |
| 3 | 2+4 | 0.61 | 1052 | 1280 | 128 | C(2，1)+C(4，3) | 1010 |
| 2+4 | 0.61 | 1052 | 1280 | 128 | C(2，1)+C(4，4) | 1011 | |
| 2+4 | 0.61 | 1052 | 1280 | 128 | C(2，2)+C(4，1) | 1100 | |
| 2+4 | 0.61 | 1052 | 1280 | 128 | C(2，2)+C(4，2) | 1101 |
Data rate that table 7. is possible and channel code collection (TTI is 5ms)
| The speed numbering | SF | Code rate | Physics bit (every time slot) | Transmission block size/5ms TTI | Data rate (kbps)/5ms TTI | The speed numbering | The coding indication |
| 0 | 4 | 0.46 | 348 | 160 | 32 | C(4.1) | 0000 |
| 4 | 0.46 | 348 | 160 | 32 | C(4，2) | 0001 | |
| 4 | 0.46 | 348 | 160 | 32 | C(4，3) | 0010 | |
| 4 | 0.46 | 348 | 160 | 32 | C(4，4) | 0011 | |
| 1 | 2 | 0.46 | 700 | 320 | 64 | C(2，1) | 0100 |
| 2 | 0.46 | 700 | 320 | 64 | C(2，2) | 0101 | |
| 2 | 2+4 | 0.46 | 1052 | 480 | 96 | C(2，1)+C(4，3) | 0110 |
| 2+4 | 0.46 | 1052 | 480 | 96 | C(2，1)+C(4，4) | 0111 | |
| 2+4 | 0.46 | 1052 | 480 | 96 | C(2，2)+C(4，1) | 1000 | |
| 2+4 | 0.46 | 1052 | 480 | 96 | C(2，2)+C(4，2) | 1001 | |
| 3 | 2+4 | 0.61 | 1052 | 640 | 128 | C(2，1)+C(4，3) | 1010 |
| 2+4 | 0.61 | 1052 | 640 | 128 | C(2，1)+C(4，4) | 1011 | |
| 2+4 | 0.61 | 1052 | 640 | 128 | C(2，2)+C(4，1) | 1100 | |
| 2+4 | 0.61 | 1052 | 640 | 128 | C(2，2)+C(4，2) | 1101 |
In order to reduce buffering (buffer) expense of UE and Node B end, according to table 6 and 7, the rate channel sign indicating number TFRCI table after we can obtain to simplify is as table 8.
Data rate that table 8. is possible and channel code TFRCI table (TTI is 10ms and 5ms)
| Code rate | Data rate (kbps)/5ms and 10ms | The speed numbering | The coding indication |
| 0.46 | 32 | C(4，1) | 0000 |
| 0.46 | 32 | C(4，2) | 0001 |
| 0.46 | 32 | C(4，3) | 0010 |
| 0.46 | 32 | C(4，4) | 0011 |
| 0.46 | 64 | C(2，1) | 0100 |
| 0.46 | 64 | C(2，2) | 0101 |
| 0.46 | 96 | C(2，1)+C(4，3) | 0110 |
| 0.46 | 96 | C(2，1)+C(4，4) | 0111 |
| 0.46 | 96 | C(2，2)+C(4，1) | 1000 |
| 0.46 | 96 | C(2，2)+C(4，2) | 1001 |
| 0.61 | 128 | C(2，1)+C(4，3) | 1010 |
| 0.61 | 128 | C(2，1)+C(4，4) | 1011 |
| 0.61 | 128 | C(2，2)+C(4，1) | 1100 |
| 0.61 | 128 | C(2，2)+C(4，2) | 1101 |
If the rate channel sign indicating number TFRCI table that Node B and UE end keep is shown in table 4 or table 8,4 bits just enough are used to represent the subscript coding indication of rate channel sign indicating number TFRCI table so.
According to table 4 or table 8, the example of a kind of descending scheduling signaling representing method that the present invention proposes is supposed N=6, with reference to Fig. 5, comprise the subscript coding indication of rate channel sign indicating number TFRCI table of 4 bits and 6 bits the time be information, 10 bits altogether.
With reference to Fig. 6, a kind of example that is used for the descending scheduling method for transmitting signaling of up channel enhancing that the present invention proposes, its step mainly comprises:
601 steps of described figure: descending scheduling SA information mainly comprises: the subscript coding indication of the rate channel sign indicating number TFRCI of 4 bits table and 6 bits the time be information, 10 bits altogether;
602 steps of described figure: with the SA bit stream of described 10 bits, send into 2 times of duplication code encoders and encode, generate the sequence of 10*2=20 bit;
603 steps of described figure: with the bit stream of described generation, adopting code rate is that 1/3 convolution code is encoded, and generates sequence behind the coding of (20+8) * 3=84 bit;
604 steps of described figure: the rate-matched process with reference to standard 25.222 provides through rate adaptation operating, forms the sequence of 84 bits with described sequence;
605 steps of described figure: with the data flow of 84 bits of described generation, the mode that interweave with the second time that provides according to standard 25.222 interweaves;
606 steps of described figure: in the bit stream after interweaving, insert 2 TPC bit informations and 2 SS bits, form data burst form as shown in the figure, on the descending scheduling control channel of appointment, send to and specify UE.
Step 604 step can omit in above-mentioned example.
Claims (10)
1. transmission method that is used for the down dispatch information of low rate tdd systems comprises step:
A) base station send the subscript coding indication bit comprise rate channel code table TFRCI and the time be the down dispatch information of information, n bit altogether;
B) described n down dispatch information bit stream encoded;
C) bit after will encoding is sent into rate adaptation operating, forms the data flow of 88-m bit;
D) with the data flow of 88-m bit of described generation, carry out interweaving the second time;
E) in the bit stream after interweaving, insert TPC bit and SS bit and form the data burst form, and on the descending scheduling control channel of appointment, send to appointment UE.
2. method according to claim 1, it is characterized in that in step a), described rate channel code table TFRCI comprises that code rate, data rate, UE are in several territories such as the operable channel code of next scheduling interval, the indications of speed subscript coding, wherein, each element among the table TFRCI is effective combination of the value in these territories.
3. method according to claim 1, it is characterized in that in step a), the constructive method of described rate channel code table TFRCI is to increase by two row in described UE desired data Speedometer Drive: channel code and the indication of subscript coding, and then remove speed numbering, spreading factor, the physical number of bits that system can carry when single, four column-generations of size of transmission block.
4. method according to claim 1 is characterized in that in step a), if described rate channel code table TFRCI comprises Y element, then Node B can use in downlink signaling
The maximum data rate indication that individual bit represents to allow the user to select for use.
5. method according to claim 1 is characterized in that the method for expressing of the down dispatch information in the described step a) is: indication of the subscript of the rate channel code table TFRCI of M bit coding and N bit the time be the territory, wherein, (1≤N≤6).
6. method according to claim 1 is characterized in that in step b), and described coded system is that code rate is 1/3 convolution code or block code.
7. method according to claim 1 is characterized in that in step e), and the employed spreading factor SF of the control channel of described descending scheduling appointment is 16, and modulation system is the strong controls of four phase phase shifts (QPSK) modulation.
8. method according to claim 1 is characterized in that in step e), and the employed time slot format of the control channel of described descending scheduling appointment is to number 5 among the Table 8F among the TS25.221.
9. method according to claim 5 is characterized in that described N can be specified flexibly by high-level signaling, but also default settings is a fixed value.
10. method according to claim 5 is characterized in that: described N bit the time be the territory, represent the time (TS1-TS of system that N is possible respectively
N) configuring condition, the value of each bit can for the corresponding time system of 0 or 1,0 expression be not used in up channel strengthen professional, the corresponding time system of 1 expression be used for up channel strengthen professional, wherein, (1≤N≤6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410104650 CN1798444A (en) | 2004-12-29 | 2004-12-29 | Method for transmitting down going scheduling information in use for time division duplexing system in low rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410104650 CN1798444A (en) | 2004-12-29 | 2004-12-29 | Method for transmitting down going scheduling information in use for time division duplexing system in low rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1798444A true CN1798444A (en) | 2006-07-05 |
Family
ID=36819117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410104650 Pending CN1798444A (en) | 2004-12-29 | 2004-12-29 | Method for transmitting down going scheduling information in use for time division duplexing system in low rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1798444A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174877B (en) * | 2006-10-31 | 2011-08-03 | 电信科学技术研究院 | Method for bearing control information |
| CN101345578B (en) * | 2008-08-20 | 2012-09-05 | 中兴通讯股份有限公司 | Resource scheduling method of TDD radio communication system |
| CN102714584A (en) * | 2010-01-07 | 2012-10-03 | 三星电子株式会社 | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| CN101669394B (en) * | 2007-04-27 | 2012-10-03 | 日本电气株式会社 | Scheduling information method and related communications devices |
| CN103428883A (en) * | 2013-08-30 | 2013-12-04 | 京信通信系统（中国）有限公司 | Dispatching method and equipment of physical downlink control channel resources |
| US9867176B2 (en) | 2012-10-30 | 2018-01-09 | Huawei Technologies Co., Ltd. | Method for processing enhanced physical downlink control channel, network-side device, and user equipment |
-
2004
- 2004-12-29 CN CN 200410104650 patent/CN1798444A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174877B (en) * | 2006-10-31 | 2011-08-03 | 电信科学技术研究院 | Method for bearing control information |
| CN101669394B (en) * | 2007-04-27 | 2012-10-03 | 日本电气株式会社 | Scheduling information method and related communications devices |
| CN101345578B (en) * | 2008-08-20 | 2012-09-05 | 中兴通讯股份有限公司 | Resource scheduling method of TDD radio communication system |
| US9220089B2 (en) | 2010-01-07 | 2015-12-22 | Samsung Electronics Co, Ltd | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| CN104320225A (en) * | 2010-01-07 | 2015-01-28 | 三星电子株式会社 | User equipment/base station and methods for transmitting/receiving automatic repeat request acknowledgement |
| CN102714584A (en) * | 2010-01-07 | 2012-10-03 | 三星电子株式会社 | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| US9432988B2 (en) | 2010-01-07 | 2016-08-30 | Samsung Electronics Co., Ltd | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| US9432987B2 (en) | 2010-01-07 | 2016-08-30 | Samsung Electronics Co., Ltd | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| US9572150B2 (en) | 2010-01-07 | 2017-02-14 | Samsung Electronics Co., Ltd | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| US9648604B2 (en) | 2010-01-07 | 2017-05-09 | Samsung Electronics Co., Ltd | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| US9655096B2 (en) | 2010-01-07 | 2017-05-16 | Samsung Electronics Co., Ltd. | Resource indexing for acknowledgement signals in response to receptions of multiple assignments |
| US9867176B2 (en) | 2012-10-30 | 2018-01-09 | Huawei Technologies Co., Ltd. | Method for processing enhanced physical downlink control channel, network-side device, and user equipment |
| US10555292B2 (en) | 2012-10-30 | 2020-02-04 | Huawei Technologies Co., Ltd. | Method for processing enhanced physical downlink control channel, network-side device, and user equipment |
| CN103428883A (en) * | 2013-08-30 | 2013-12-04 | 京信通信系统（中国）有限公司 | Dispatching method and equipment of physical downlink control channel resources |
| CN103428883B (en) * | 2013-08-30 | 2016-03-02 | 京信通信系统（中国）有限公司 | A kind of dispatching method of physical downlink control channel resource and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100877447B1 (en) | Shared channel structure, arq systems and methods | |
| EP1869817B1 (en) | Method and apparatus for high rate data transmission in wireless communication | |
| CN2896706Y (en) | User equipment of media access control multitasking/de-multitasking and base station | |
| JP5351058B2 (en) | Wireless communication method, subscriber station and base station | |
| CN112368966A (en) | Flexible repetition of PUSCH mini-slots within a slot | |
| CN101185278B (en) | Method and apparatus for high rate data transmission in wireless communication | |
| CN1918822A (en) | Method of transmitting scheduling information on an enhanced uplink dedicated channel in a mobile communication system | |
| CN1505904A (en) | Time multiplexed transmission scheme for a spread spectrum communication system | |
| CN1906892A (en) | Method and apparatus for providing an efficient control channel structure in a wireless communication system | |
| CN1993919A (en) | Multiplexing of w-cdma and OFDM signal in a wireless communication system | |
| CN101485216A (en) | Reservation of radio resources for users in a mobile communications system | |
| CN1701535A (en) | Method and apparatus for providing uplink packet data service in asynchronous WCDMA system | |
| CN101350702B (en) | Method and device for implementing mixed automatic re-transmission indicating channel for enhancing private channel | |
| CN1171496C (en) | Method for dynamic allocation of resources in digital radio communication system | |
| CN1819673A (en) | Base-station-controlled time-division plexing scheduling method with data transmission enhancing concerned | |
| CN101175301B (en) | Sharing method for unscheduled and scheduled resource in ascending reinforcement system | |
| CN1627844A (en) | Dispatching method controlled from base station for enhancing up going dedicated channel in mobile communication system | |
| CN1798444A (en) | Method for transmitting down going scheduling information in use for time division duplexing system in low rate | |
| CN1780179A (en) | Down dispatch information transmission for high-rate time-divided duplexing system | |
| CN1798004A (en) | Transmission method of up going scheduling signaling in use for time division duplexing system in low rate | |
| CN101188486B (en) | Sharing method for non scheduled resources and scheduled resources in uplink enhanced system | |
| CN1780478A (en) | Uplink dispatch transmission for high-speed rate TDM system | |
| CN1747596A (en) | The signal transmission method of combination | |
| CN1627845A (en) | Dispatching method controlled from base station for enhancing up going shared channel in mobile communication system | |
| CN101521907B (en) | Paging preset code-channel sharing method based on high-speed packet access enhanced technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20060705 |