CN104348601B - A kind of transmission method of wireless communication system ascending control information - Google Patents
A kind of transmission method of wireless communication system ascending control information Download PDFInfo
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- CN104348601B CN104348601B CN201310343792.8A CN201310343792A CN104348601B CN 104348601 B CN104348601 B CN 104348601B CN 201310343792 A CN201310343792 A CN 201310343792A CN 104348601 B CN104348601 B CN 104348601B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of transmission method of wireless communication system ascending control information, the method includes, is one RNTI for including parameter needed for terminal sends ascending control information of terminal distribution first as base station before terminal sends ascending control information；Terminal carries out coded modulation according to including the systematic parameter including RNTI and frame number to sent ascending control information, produces PUCCH signals, and the signal after above-mentioned modulation is sent on sub-frame of uplink PUCCH.By the present invention, each terminal, according to the RNTI and frame number distributed after being successfully accessed, is to obtain the PUCCH channel resources that each frame takes by simple algorithm.And for each terminal, by the frequency hopping between subcarrier, frequency diversity gain can be obtained；And by code division multiplexing mode in each subcarrier, system can with flexible adaptation dynamic change the need for transmitting uplink control information terminal number and information bit.
Description
Technical field
The present invention relates to wireless communication technology, more particularly to a kind of uplink control information transmission method.
Background technology
In a wireless communication system, be divided into transmission link from downlink and upper by the transmission direction according to wireless signal
Line link, wherein downlink refer to transmission direction of the base station to terminal, and up-link refers to the transmission direction of terminal to base station.
Generally according to the information type for carrying, further the physical uplink link that physical channel is divided into carrying uplink service information is total to
Enjoy channel (Physical Uplink Shared Channel, PUSCH), carry the physical uplink link control of ascending control information
Channel (Physical Uplink Control Channel, PUCCH) processed and the physical accidental of carrying upstream terminal access information
Access channel (Physical Random Access Channel, PRACH), and bearing downlink business information physical down
Link shared channels (Physical Downlink Shared Channel, PDSCH), the physical down chain of Downlink Control Information
Road control channel (Physical Downlink Control Channel, PUCCH) etc..
In a wireless communication system, terminal reports various information by PUCCH to base station, such as in cell access procedure
In, terminal transmits the various signalings interacted with base station by PUCCH, realizes cell access and the foundation of service channel；In business
In transmitting procedure, terminal reports the shapes such as scheduling reply, down channel measurement result, HARQ Warning Marks by PUCCH to base station
State information, scheduling of resource optimization and HARQ etc. are realized with assistant base station.Access all terminals of same base station by time division multiplex,
The mode of frequency division multiplexing or code division multiplexing is using PUCCH to base station transmitting uplink control information.Needed under each same base station of frame
It is dynamic change that the terminal number of transmitting uplink control information and each terminal need the information bit of transmission.This is just
It is required that uplink control information transmission method adapts to this dynamic variation characteristic, enable the system to it is quick, be simply each terminal
Distribute the channel resource of transmitting uplink control information.
The content of the invention
In a wireless communication system, each frame needs the terminal number of transmitting uplink control information and every under same base station
It is all dynamic change that individual terminal needs the information bit of transmission.Uplink control information transmission method needs to adapt to this dynamic
Variation characteristic, allows system using simple resource allocation algorithm, for needed for each terminal distribution transmitting uplink control information
Channel resource.
The invention discloses a kind of transmission method of ascending control information in wireless communication system, the method includes：
It is one Radio Network Temporary Identifier of terminal distribution first by base station before terminal sends ascending control information
（Radio Network Temporary Identity, RNTI）, wherein the ginseng needed for sending ascending control information comprising terminal
Number.Terminal carries out coded modulation according to the other systems parameter such as RNTI and frame number is received to sent ascending control information,
PUCCH signals are produced, and the signal after modulating is sent on sub-frame of uplink PUCCH physical channels.
Method as described above, wherein send in interval that system bandwidth is uniformly divided into M subcarrier in PUCCH,
Wherein M is positive integer.Each terminal can only select to send PUCCH signals on one sub-carrier.
Method as described above, wherein the PUCCH signals that each terminal sends by when a length of n symbols pilot signal and
The data-signal composition of Shi Changwei m symbols.
Ginseng needed for the terminal transmission ascending control information included in method as described above, the wherein RNTI of base station distribution
Number includes：Terminal sends PUCCH startings subcarrier number, PUCCH pilot numbers and PUCCH pilot tone scrambling code numbers.
The method that method as described above, wherein terminal send ascending control information includes：Included according in RNTI first
Initial subcarrier number and current frame number, calculate present frame send PUCCH subcarrier number.The feature of computational methods exists
In：In each frame, the subcarrier number of the terminal selection with different initial subcarrier numbers is also different.
The method that method as described above, wherein terminal send ascending control information also includes：According to what is included in RNTI
PUCCH pilot numbers and PUCCH pilot tone scrambling code numbers, produce the PUCCH pilot signals of this terminal.Its specific method is：
1）Terminal chooses correspondence sequence according to the PUCCH pilot numbers included in RNTI from PUCCH pilot frequency sequence groups, its
Middle PUCCH pilot frequency sequences group is the Sequence composition of n symbols by L length, and L is positive integer；The feature of PUCCH pilot frequency sequence groups exists
In PUCCH pilot numbers are corresponded with sequence in group；In group all there is the fast correlation algorithm of low complex degree in all sequences；
2）Choose right from current base station PUCCH pilot tone scrambler groups according to the PUCCH pilot tones scrambling code number included in RNTI
Scrambler is answered, above-mentioned PUCCH pilot frequency sequences are scrambled；Current base station PUCCH pilot tone scramblers group is system PUCCH pilot tone scrambler groups
Subset, can obtain the corresponding PUCCH pilot tones scrambler group of current base station after each terminal access system, wherein system PUCCH leads
Frequency scrambler group is that n symbols and scrambler with good autocorrelation and cross correlation are constituted by P length, and P is positive integer；
PUCCH pilot tones scrambling code number is corresponded with current base station PUCCH pilot tone scrambler groups scrambler.
The method that method as described above, wherein terminal send ascending control information also includes：According to the base that terminal is accessed
Stand identity information and terminal identity information, produce the PUCCH data signal of this terminal.Its specific method is：
1）The ascending control information bit number i that terminal need to be transmitted according to present frame calculates the code channel number Nc=ceil (i/ for taking
K), wherein k is the maximum information bit for carrying of a code channel, and ceil (x) represents the smallest positive integral taken more than or equal to x, code
Road number Nc is positive integer；Become the information flow that length is Nc*k bits in ascending control information stream afterbody filling Nc*k-l bits,
And it is Nc sections of k bits to be divided into length, is respectively labeled as the 0th, 1 ..., Nc-1 sections；
2）It is the scrambler of Nc*m symbols that generation carries subscriber identity information and base station identity information, length, it is characterised in that
The scrambler for carrying different user identity information and base station identity information has good autocorrelation and cross correlation；It is by length
It is all Nc sections of m symbols that the scrambler of Nc*m symbols is divided into length, is respectively labeled as the 0th, 1 ..., Nc-1 sections；
3）It is the information of k bits to every segment length, is encoded respectively, modulated, obtains the data that length is m symbols and believe
Number, scrambled with numbering identical scrambler section, obtain each code channel PUCCH data signal；
4）Finally, by all Nc code channel PUCCH data Signal averagings.
The method that method as described above, wherein terminal send ascending control information also includes：Terminal is per frame according to above-mentioned
The subcarrier number of method choice, the PUCCH data signal after multiple connection and pilot signal is modulated and is sent onto the subcarrier.
Using the transmission method of PUCCH information proposed by the present invention, each terminal is according to the RNTI distributed after being successfully accessed
And frame number, it is to obtain the PUCCH channel resources that each frame takes by simple algorithm.And for each terminal, pass through
Frequency hopping between subcarrier, can obtain frequency diversity gain；And by code division multiplexing mode in each subcarrier, system can
The terminal number and information bit of transmitting uplink control information the need for flexible adaptation dynamic change.
Brief description of the drawings
Fig. 1 show PUCCH signal structures.
Fig. 2 show PUCCH data signal creating method.
Specific embodiment
The transmission method main thought of PUCCH information proposed by the present invention is the upload control of each terminal under same base station
Information is carried in PUCCH by the multiplex mode of time-division, frequency division and code division, and terminal is according to distribution after being successfully accessed
RNTI and frame number can determine the PUCCH channel resources that each frame takes.Below in conjunction with the accompanying drawings and specific embodiment is to this hair
The bright technical scheme is described further.
So that system bandwidth is as 4MHz as an example, the PUCCH subcarriers that 4 band widths are 1MHz are divided into.Terminal accesses system
The RNTI distributed after system by PUCCH that length is 2 bits starting subcarrier number, PUCCH pilot numbers that length is 7 bits with
And the PUCCH pilot tones scrambling code number composition that length is 2 bits.
PUCCH signal structures are as shown in Figure 1.PUCCH includes PUCCH data signal and PUCCH pilot signal two parts, its
Middle PUCCH data signal length is m=1024 symbols, is divided into two sections of D0, D1 that length is 512 symbols, is distributed in PUCCH pilot tones
Signal both sides；PUCCH pilot signal R S length is n=128 symbols.
PUCCH pilot frequency sequences group is made up of length for n=128 symbols and through the walsh code characters after ovennodulation, in code character
It is total L=128 walsh yards.Terminal first according to the PUCCH pilot numbers that the length specified in RNTI is 7 bits, from PUCCH
Walsh yards of correspondence is selected in pilot frequency sequence group.Secondly, compiled according to the PUCCH pilot tones scrambler that the length specified in RNTI is 2 bits
Number, correspondence scrambler is chosen from current base station PUCCH pilot tone scrambler groups, PUCCH pilot signals are scrambled.After terminal access system
The corresponding PUCCH pilot tones scrambler group of current base station can be obtained, each base station PUCCH pilot tone scramblers group includes 4 scramblers, belongs to
The subset of system PUCCH pilot tone scrambler groups.Each scrambler of wherein system PUCCH pilot tones scrambler group has good auto-correlation
Property and cross correlation, therefore base station to PUCCH when reception processing is carried out, and can respectively carry out channel estimation to each terminal.
PUCCH data signal is encoded using walsh, and each code channel is maximum to carry 40 bit informations（That is k=40）.To be
Needed in system as a example by the ascending control information that conveying length is 40 bits and 80 bits, illustrate the generation side of PUCCH data signal
Method：
1) it is the ascending control information of l=40 bits for length, the code channel number of occupancy is Nc=ceil (l/k)=1；And it is right
It is the ascending control information of l=80 bits in length, the code channel number of occupancy is Nc=ceil (l/k)=2, and information is divided into length
All it is two sections of 40 bits.
2) with terminal identity information and the base station identity information of terminal access as initial value, GOLD yards of generation is used as scrambler area
Divide terminal and base station.It is the ascending control information of l=40 bits for length, generates the scrambler of a length of 1024 symbol；For length
It is the ascending control information of l=80 bits, generates the scrambler of a length of 2048 symbol, and it is all the two of 1024 symbols to be divided into length
Section.
3) the k=40 bit informations for each code channel carry out coded modulation, obtain 1024 symbol data signals, specific side
Method is：Two sections that k=40 bit informations are divided into that length is 20 bits, respectively according to it is as shown in Figure 2 carry out 20 bits->
The coded modulation of 512 symbols, obtains 512 symbol data signals, then multiple connection obtains 1024 symbol data signals together.Wherein,
20 bits->The code modulating method of 512 symbols is：It is all two groups of 10 bits that the information of 20 bits is divided into length, for every
Group, wherein 9 bits of encoded obtain 512 bit walsh yards, XOR is carried out with another 1 bit；The two groups of sequences for obtaining as I,
Q two-way carries out QPSK modulation.
4) according to code channel sequence selection correspondence scrambler section, to the data-signal scrambling after each code channel coded modulation.
The invention is not limited in above-mentioned specific embodiment, the present invention can have various modifications and substitutions forms, attached
Figure and some specific embodiments are intended only as example and are stated in describing in detail.It should be understood that these accompanying drawings and specifically
It is bright to be in no way intended to limit the present invention on disclosed concrete form, conversely, the present invention should be included in claims institute
Whole modifications, equivalents and alternative form in the range of definition.
Claims (10)
1. a kind of transmission method of wireless communication system ascending control information, it is characterised in that send upload control letter in terminal
Before breath, first as base station for one wireless network for including parameter needed for terminal sends ascending control information of terminal distribution is interim
Mark RNTI；Terminal is compiled according to including the systematic parameter including RNTI and frame number to sent ascending control information
Code modulation, produces physical uplink control channel PUCCH signals, and after sending above-mentioned modulation on sub-frame of uplink PUCCH
Signal is PUCCH signals.
2. method as claimed in claim 1, it is characterised in that the PUCCH sends in interval and uniformly divides system bandwidth
It is M subcarrier, wherein M is positive integer；Each terminal can only select to send PUCCH signals on one sub-carrier.
3. method as claimed in claim 1 or 2, it is characterised in that the PUCCH signals by when a length of n symbols PUCCH pilot tones
Signal and when a length of m symbols PUCCH data signal composition, wherein m, n is positive integer.
4. method as claimed in claim 3, it is characterised in that the terminal included in the RNTI of the base station distribution sends up control
Parameter needed for information processed includes：Terminal sends PUCCH startings subcarrier number, PUCCH pilot numbers and PUCCH pilot tone scramblers
Numbering.
5. method as claimed in claim 4, it is characterised in that the method for the generation PUCCH pilot signals is according in RNTI
Comprising PUCCH pilot numbers and PUCCH pilot tone scrambling code numbers produce this terminal PUCCH pilot signals, comprise the concrete steps that：
First, terminal chooses correspondence sequence according to the PUCCH pilot numbers included in RNTI from PUCCH pilot frequency sequence groups, its
Middle PUCCH pilot frequency sequences group is n symbols and Sequence composition with good autocorrelation and cross correlation by L length, and L is
Positive integer；PUCCH pilot frequency sequence groups are characterised by that PUCCH pilot numbers are corresponded with sequence in group；All sequences in group
All there is the fast correlation algorithm of low complex degree；
Then, terminal chooses correspondence according to the pilot tone scrambling code number included in RNTI from current base station PUCCH pilot tone scrambler groups
Scrambler, scrambles to above-mentioned PUCCH pilot frequency sequences；Current base station PUCCH pilot tone scramblers group is the son of system PUCCH pilot tone scrambler groups
Collection, can obtain the corresponding PUCCH pilot tones scrambler group of current base station, wherein system PUCCH pilot tones after each terminal access system
Scrambler group is that n symbols and scrambler with good autocorrelation and cross correlation are constituted by P length, and P is positive integer；
PUCCH pilot tones scrambling code number is corresponded with current base station PUCCH pilot tone scrambler groups scrambler.
6. method as claimed in claim 3, it is characterised in that the method for the generation PUCCH data signal is connect according to terminal
The base station identity information and terminal identity information for entering, produce the PUCCH data signal of this terminal, comprise the concrete steps that：
First, the ascending control information bit number i that need to be transmitted according to present frame terminal calculates the code channel number Nc=ceil (i/ for taking
K), wherein k is the maximum information bit for carrying of a code channel, and ceil (x) represents the smallest positive integral taken more than or equal to x, code
Road number Nc is positive integer；Become the information flow that length is Nc*k bits in ascending control information stream afterbody filling Nc*k-l bits,
And it is all Nc sections of k bits to be divided into length, is respectively labeled as the 0th, 1 ..., Nc-1 sections；
Secondly, it is the scrambler of Nc*m symbols that generation carries subscriber identity information and base station identity information, length, it is characterised in that taken
Scrambler with different user identity information and base station identity information has good autocorrelation and cross correlation；It is by length
The scrambler of Nc*m symbols is divided into Nc sections that length is m symbols, is respectively labeled as the 0th, 1 ..., Nc-1 sections；
Then, it is the information of k bits to every segment length, is encoded respectively, modulated, obtains the data-signal that length is m symbols,
Scrambled with numbering identical scrambler section, obtained each code channel PUCCH data signal；
Finally, by all Nc code channel PUCCH data Signal averagings.
7. such as claim 2,4 to 6 any one methods describeds, it is characterised in that the terminal sends the side of ascending control information
Method includes：First according to the initial subcarrier number and current frame number included in RNTI, the son load that present frame sends PUCCH is calculated
Ripple is numbered；Computational methods are characterised by：In each frame, the subcarrier of the terminal selection with different initial subcarrier numbers
Numbering is also different.
8. method as claimed in claim 7, it is characterised in that the method that the terminal sends ascending control information also includes,
Terminal calculates the PUCCH subcarrier numbers of present frame according to the method that the calculating present frame sends PUCCH subcarrier numbers, will
PUCCH data signal and pilot signal after multiple connection are modulated and sent onto the subcarrier.
9. method as claimed in claim 3, it is characterised in that the method that the terminal sends ascending control information includes：First
According to the initial subcarrier number and current frame number that are included in RNTI, the subcarrier number that present frame sends PUCCH is calculated；Calculate
Method is characterised by：In each frame, the subcarrier number of the terminal selection with different initial subcarrier numbers is also different.
10. method as claimed in claim 9, it is characterised in that the method that the terminal sends ascending control information also includes,
Terminal calculates the PUCCH subcarrier numbers of present frame according to the method that the calculating present frame sends PUCCH subcarrier numbers, will
PUCCH data signal and pilot signal after multiple connection are modulated and sent onto the subcarrier.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105338641B (en) * | 2015-10-21 | 2019-02-19 | 上海华为技术有限公司 | A kind of information sending, receiving method and relevant apparatus |
| CN107197529B (en) * | 2016-03-15 | 2021-01-12 | 华为技术有限公司 | Sequence signal sending method and terminal |
| CN114158126A (en) | 2016-03-22 | 2022-03-08 | 中兴通讯股份有限公司 | Information transmission method, device and system |
| CN107484248B (en) * | 2016-06-07 | 2020-12-08 | 华为技术有限公司 | Data transmission method, macro base station and user equipment |
| CN109274469B (en) * | 2017-07-18 | 2021-01-15 | 中国信息通信研究院 | Method and device for designing uplink control channel |
| CN110022196B (en) * | 2018-01-10 | 2021-11-19 | 北京紫光展锐通信技术有限公司 | Method and device for determining PUCCH (physical uplink control channel) resources and user equipment |
| EP3817478A4 (en) * | 2018-05-22 | 2022-03-09 | Ntt Docomo, Inc. | User terminal and wireless communication method |
| CN114696951A (en) * | 2020-12-31 | 2022-07-01 | 维沃移动通信有限公司 | Signal generation method, device, terminal and readable storage medium |
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| CN101651995A (en) * | 2009-09-21 | 2010-02-17 | 中兴通讯股份有限公司 | Transmission method and system of downlink control information |
| CN101827425A (en) * | 2010-04-21 | 2010-09-08 | 新邮通信设备有限公司 | Uplink data sending method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9277566B2 (en) * | 2009-09-14 | 2016-03-01 | Qualcomm Incorporated | Cross-subframe control channel design |
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| CN101646229A (en) * | 2008-08-04 | 2010-02-10 | 中兴通讯股份有限公司 | Method for acquiring transmission power control command, acquisition preprocessing method, and mobile terminal |
| CN101651995A (en) * | 2009-09-21 | 2010-02-17 | 中兴通讯股份有限公司 | Transmission method and system of downlink control information |
| CN101827425A (en) * | 2010-04-21 | 2010-09-08 | 新邮通信设备有限公司 | Uplink data sending method and system |
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