CN101394199A - Method for data transmission in large bandwidth system - Google Patents
Method for data transmission in large bandwidth system Download PDFInfo
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- CN101394199A CN101394199A CNA2008101712690A CN200810171269A CN101394199A CN 101394199 A CN101394199 A CN 101394199A CN A2008101712690 A CNA2008101712690 A CN A2008101712690A CN 200810171269 A CN200810171269 A CN 200810171269A CN 101394199 A CN101394199 A CN 101394199A
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- carrier frequency
- base station
- component carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a data transmission method in a larger-bandwidth system. After a post-accumulative carrier frequency is divided to more than one component carrier frequency, data in a physical channel carrier or a measuring pilot signal is transmitted between component carrier frequencies in a frequency hopping manner. The invention has the advantages of ensuring the compatibility of an LTE-Advanced system and an LTE Releaste-8 system, facilitating the increase of the system capacity and the scheduling flexibility of the LTE-Advanced system, and enabling a LTE-Advanced terminal to acquire the selective gain of the biggest frequency.
Description
Technical field
The present invention relates to field of mobile wireless communication, relate in particular to a kind of in large bandwidth system the method for transfer of data.
Background technology
LTE (Long Term Evolution, Long Term Evolution) FDD of system (Frequency DivisionDuplex, Frequency Division Duplexing (FDD)) in the frame structure of pattern, the radio frame (radio frames) of a 10ms is 0.5ms by 20 length, the slot (time slot) of numbering 0～19 forms, it is subframe (subframe) i of 1ms that time slot 2i and 2i+1 form length, as shown in Figure 1.LTE system TDD (Frequency DivisionDuplex, Frequency Division Duplexing (FDD)) in the frame structure of pattern, the radio frame (radio frames) of a 10ms longly forms for the half frame (field) of 5ms by two, field comprises 5 and longly is the subframe of 1ms (subframe), subframe i is defined as 2 and longly is time slot 2i and the 2i+1 of 0.5ms, as shown in Figure 2.In two kinds of frame structures, for Normal CP (Normal Cyclic Prefix, standard cyclic prefix), the symbol that it is 66.7us that time slot comprises 7 length, wherein the CP length of first symbol is 5.21us, the CP length of all the other 6 symbols is 4.69us; For Extended (Extended, expansion) CP, a time slot comprises 6 symbols, and the CP length of all symbols is 16.67us.
LTE has defined PDCCH (Physical downlink control channel, Physical Downlink Control Channel) carrying scheduling and has distributed and other control information; PCFICH (Physical control format indicatorchannel, Physical Control Format Indicator Channel) is carried on the information of number of the OFDM symbol that is used to transmit PDCCH in the subframe, send on first OFDM symbol of subframe, the place frequency location is by system descending bandwidth and sub-district ID decision.
LTE Release-8 has defined 6 kinds of bandwidth: 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz.
LTE-Advanced (Further Advancements for E-UTRA) is the evolution version of LTE Release-8.Except that satisfying or surpassing 3GPP TR 25.913: all related needs of " Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-UTRAN) ", also will meet or exceed the demand of the IMT-Advanced (senior international mobile communication) of ITU-R (radio communication department) proposition.Wherein, the demand with LTE Release-8 backward compatibility is meant: the terminal of LTE Release-8 can be worked in the network of LTE-Advanced; The terminal of LTE-Advanced can be worked in the network of LTERelease-8.
In addition, LTE-Advanced should be able to be at the carrier frequency (carrier of different sizes, be also referred to as frequency spectrum) configuration, comprise carrier frequency configuration (as the continuous carrier frequency resource of 100MHz) the down work wideer, to reach higher performance and target peak speed than LTE Release-8.In this article, " large bandwidth system " promptly refer to have the carrier frequency wideer LTE-Advanced system of (surpass 20MHz) than LTE Release-8.Consider and the compatibility of LTE Release-8 that the scheme of carrier frequency configuration mainly contains 3 kinds, shown in Fig. 3～5.Wherein, grid partly is and the system bandwidth of LTE Release-8 compatibility that oblique line partly is the proprietary system bandwidth of LTE-Advanced.Fig. 3 is a carrier frequency allocation plan 1, be meant that the LTE-Advanced carrier frequency disposes the system bandwidth that is defined by 1 LTE-Advanced and forms, and this bandwidth is greater than the system bandwidth of LTERelease-8 definition.Fig. 4 is a carrier frequency allocation plan 2, is meant that LTE-Advanced carrier frequency configuration assembles (carrier aggregation) by the system bandwidth of the system bandwidth of a LTE Release-8 definition and a plurality of LTE-Advanced definition by carrier frequency and form.Fig. 5 is a carrier frequency allocation plan 3, is meant that the LTE-Advanced carrier frequency disposes the system bandwidth that is defined by a plurality of LTE Release-8 and forms by the carrier frequency gathering, and wherein, the gathering of above-mentioned carrier frequency can be the gathering of continuous carrier, also can be the gathering of discontinuous carrier frequency.
Carrier frequency for after assembling is divided into n component carrier frequency (Component carrier), and the carrier frequency in each component carrier frequency is continuous;
In the LTE-Advanced system, physical channel institute data carried by data, such as LTE-Advanced terminal (UE, User Equipment) Downlink Control Information (DCI that carried of proprietary PDCCH channel, Downlink Control Information), can in the one-component carrier frequency, send, also can in a plurality of component carrier frequency, send; If physical channel institute data carried by data sends, so, just can't obtain maximum frequency selectivity gain, and the flexibility of power system capacity and scheduling is restricted all on one or several fixed component carrier frequency.
Summary of the invention
The technical problem to be solved in the present invention be exactly propose a kind of in large bandwidth system the method for transfer of data, the problem that the flexibility of power system capacity and scheduling all is restricted when solving the prior art transfer of data makes the LTE-Advanced terminal obtain bigger frequency selectivity gain.
In order to solve the problems of the technologies described above, the invention provides a kind of in large bandwidth system the method for transfer of data, after carrier frequency was divided into an above component carrier frequency after will assembling, physical channel data carried by data or measurement pilot signals were carried out the frequency hopping transmission between described component carrier frequency.
Further, described method comprises the steps:
(1) carrier frequency was divided into an above component carrier frequency after the base station will be assembled, and each component carrier frequency is made of continuous carrier;
(2) base station reconfigures the component carrier frequency at physical channel data carried by data place;
(3) base station sends the physical channel data carried by data according to the configuration of upgrading.
Further, described method comprises the steps:
(a) carrier frequency was divided into an above component carrier frequency after the base station will be assembled, and each component carrier frequency is made of continuous carrier;
(b) base station reconfigures the component carrier frequency at measurement pilot signals place;
(c) base station sends measurement pilot signals according to the configuration of upgrading.
Further, described physical channel is a Physical Downlink Control Channel, or Physical Downlink Shared Channel, or Physical Uplink Shared Channel, or Physical Uplink Control Channel.
Further, all carry out frequency hopping, perhaps when how to carry out frequency hopping, the perhaps pre-defined frequency hopping of when how carrying out by the base station decision at each time quantum.
Further, described time quantum is a subframe, or field, or radio frames, or adjacent subframe spacing in process.
Further, when how to carry out frequency hopping in the following way by the base station decision:
When the base station need reconfigure the physical channel data carried by data, perhaps during the component carrier frequency at measurement pilot signals place, the base station issues configuration information by high level, then, carries described high-rise configuration information by the Physical Downlink Shared Channel on the subframe n, sends; On subframe n+m, the base station sends described physical channel data carried by data or measurement pilot signals on the carrier frequency of new configuration; Wherein, n, m are positive integer; Described high level refers to radio resource control layer, perhaps control sub layer of wireless link, perhaps PDCP Packet Data Convergence Protocol sublayer, perhaps medium access control sublayer.
Further, pre-definedly when how to carry out frequency hopping in the following way:
Current available component carrier frequency is { P
0, P
1..., P
N-1, the component carrier frequency at current physical channel data carried by data or measurement pilot signals place is P
i, then, the component carrier frequency at next time quantum physical channel data carried by data or measurement pilot signals place is P
(i+k) modn, wherein, k is a positive integer, mod is a modulo operation; K produces according to pseudo random sequence.
Further, in the described step (2), in data re-transmission, the base station reconfigures the component carrier frequency at data retransmission place.
Further, in the described step (2), in the each transmission of semi-persistent scheduling business datum, the base station reconfigures the component carrier frequency at semi-persistent scheduling business datum place.
Further, described semi-persistent scheduling is professional is speech business.
Further, in the described step (b), in the each transmission of measurement pilot signals, the base station reconfigures the component carrier frequency at measurement pilot signals place.
Further, by the signaling terminal, perhaps base station and terminal are arranged the relevant information of frequency hopping transmission to the relevant information of frequency hopping transmission in advance by the base station; The relevant information of described frequency hopping transmission comprises the time and the mode of frequency hopping transmission.
Further, whether frequency-hopping mode enables to notify terminal by the base station by high-level signaling, and described high-level signaling is the above signaling of physical layer.
The present invention proposes a kind of method of frequency hopping transmission, can guarantee the compatibility of LTE-Advanced system and LTERelease-8 system, help increasing the power system capacity of LTE-Advanced system and the flexibility of scheduling, make the LTE-Advanced terminal obtain maximum frequency selectivity gain.
Description of drawings
Fig. 1 is the frame structure schematic diagram of LTE system fdd mode;
Fig. 2 is the frame structure schematic diagram of LTE system TDD mode;
Fig. 3～5 are 3 kinds of carrier frequency allocation plan schematic diagrames;
Fig. 6 is the flow chart of the embodiment of the invention one;
Fig. 7 is the flow chart of the embodiment of the invention two.
Embodiment
Core concept of the present invention is: after carrier frequency was divided into an above component carrier frequency after will assembling, physical channel data carried by data or Sounding (measurement) pilot signal was carried out the frequency hopping transmission between described component carrier frequency.
Described frequency hopping transmission is meant: which component carrier frequency transmission is data be not fixed on, and this is by base station configuration.
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 6, the embodiment of the invention one comprises the steps:
Carrier frequency in described each component carrier frequency is continuous, and the carrier frequency that described each component carrier frequency comprised is different.
Described physical channel can be the proprietary PDCCH channel of terminal, or PDSCH (PhysicalDownlink Share Channel, Physical Downlink Shared Channel), or PUSCH (Physical UplinkShare Channel, Physical Uplink Shared Channel), or PUCCH (Physical Uplink ControlChannel, Physical Uplink Control Channel).
Carry out the time of frequency hopping, promptly the base station reconfigures the time of the component carrier frequency at physical channel data carried by data place and can be: all carrying out at each time quantum, also can be fixed cycle not, by base station decision or the pre-defined frequency hopping of when how carrying out;
Described time quantum can be a subframe, or field, or radio frames, or adjacent subframe spacing in process;
In addition, after data transmission fails, can that is to say, in data re-transmission, reconfigure the carrier frequency at data retransmission place with the subframe of data retransmission as a time quantum;
And, can be with the transmission subframe of semi-persistent scheduling (semi-persistent scheduling) business datum as a time quantum, that is to say, in the each transmission of semi-persistent scheduling business datum, reconfigure the carrier frequency at semi-persistent scheduling business datum place; Described semi-persistent scheduling business comprises the such speech business of VOIP (Voice Over IP);
Wherein, when how to carry out frequency hopping by the base station decision and can adopt similar following mode:
The base station is by the semi-static physical channel data carried by data that reconfigures of high-level signaling, promptly when the base station need reconfigure the component carrier frequency at physical channel data carried by data place, the base station issues configuration information by high level, then, carry above-mentioned high-rise configuration information by the Physical Downlink Shared Channel on the subframe n, send; On subframe n+m, the base station sends above-mentioned physical channel data carried by data on the carrier frequency of new configuration; Wherein, n, m are positive integer;
Above-mentioned high level refers to RRC (the Radio Resource Control on the physical layer, Radio Resource control) layer, perhaps RLC (Radio Link Control, Radio Link control) sublayer, or, PDCP (PacketData Convergence Protocol, PDCP Packet Data Convergence Protocol) sublayer, or, MAC (MediumAccess Control, medium access control) sublayer.
Wherein, the pre-defined frequency hopping of when how carrying out can adopt similar following mode:
Suppose that current available component carrier frequency is { P
0, P
1..., P
N-1, the component carrier frequency at current physical channel data carried by data place is P
i, then, the component carrier frequency at next time quantum physical channel data carried by data place is P
(i+k) modn, wherein, k is a positive integer, mod is a modulo operation;
K can produce according to pseudo random sequence.
The relevant information (being the information that reconfigures of base station) of frequency hopping transmission, such as the time and the mode of frequency hopping transmission, can also can use implicit mode by the base station by the signaling terminal, such as using predefined mode, promptly base station and terminal are arranged the relevant information of frequency hopping transmission in advance.
In addition, whether frequency-hopping mode enables (promptly whether carrying out frequency hopping) and notifies terminal by the base station by high-level signaling;
Described high-level signaling is meant: the signaling that physical layer is above, and such as the signaling of management level.
As shown in Figure 7, the embodiment of the invention two comprises the steps:
Carry out the time of frequency hopping, promptly the base station reconfigures the time of the component carrier frequency at Sounding pilot signal place and can be: all carrying out at each time quantum, also can be fixed cycle not, by base station decision or the pre-defined frequency hopping of when how carrying out;
Can that is to say with the subframe of periodic transfer Sounding pilot signal as a time quantum, when transmitting the Sounding pilot signal, reconfigure the carrier frequency at Sounding pilot signal place at every turn.
Whether the definite and frequency-hopping mode of frequency hopping related transmitting information enables similar embodiment one, no longer describes in detail herein.
The present invention can guarantee the compatibility of LTE-Advanced system and LTE Release-8 system, helps increasing the power system capacity of LTE-Advanced system and the flexibility of scheduling, makes the LTE-Advanced terminal obtain maximum frequency selectivity gain.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.Be not limited to the LTE system as the applied system of the present invention.
Claims (14)
1, a kind of in large bandwidth system the method for transfer of data, it is characterized in that after will assembling the back carrier frequency and being divided into an above component carrier frequency, physical channel data carried by data or measurement pilot signals are carried out the frequency hopping transmission between described component carrier frequency.
2, the method for claim 1 is characterized in that, described method comprises the steps:
(1) carrier frequency was divided into an above component carrier frequency after the base station will be assembled, and each component carrier frequency is made of continuous carrier;
(2) base station reconfigures the component carrier frequency at physical channel data carried by data place;
(3) base station sends the physical channel data carried by data according to the configuration of upgrading.
3, the method for claim 1 is characterized in that, described method comprises the steps:
(a) carrier frequency was divided into an above component carrier frequency after the base station will be assembled, and each component carrier frequency is made of continuous carrier;
(b) base station reconfigures the component carrier frequency at measurement pilot signals place;
(c) base station sends measurement pilot signals according to the configuration of upgrading.
4, method as claimed in claim 1 or 2 is characterized in that, described physical channel is a Physical Downlink Control Channel, or Physical Downlink Shared Channel, or Physical Uplink Shared Channel, or Physical Uplink Control Channel.
5, the method for claim 1 is characterized in that, all carries out frequency hopping at each time quantum, perhaps when how to carry out frequency hopping, the perhaps pre-defined frequency hopping of when how carrying out by the base station decision.
6, method as claimed in claim 5 is characterized in that, described time quantum is a subframe, or field, or radio frames, or adjacent subframe spacing in process.
7, method as claimed in claim 5 is characterized in that, when how to carry out frequency hopping in the following way by the base station decision:
When the base station need reconfigure the physical channel data carried by data, perhaps during the component carrier frequency at measurement pilot signals place, the base station issues configuration information by high level, then, carries described high-rise configuration information by the Physical Downlink Shared Channel on the subframe n, sends; On subframe n+m, the base station sends described physical channel data carried by data or measurement pilot signals on the carrier frequency of new configuration; Wherein, n, m are positive integer; Described high level refers to radio resource control layer, perhaps control sub layer of wireless link, perhaps PDCP Packet Data Convergence Protocol sublayer, perhaps medium access control sublayer.
8, method as claimed in claim 5 is characterized in that, pre-definedly when how to carry out frequency hopping in the following way:
Current available component carrier frequency is { P
0, P
1..., P
N-1, the component carrier frequency at current physical channel data carried by data or measurement pilot signals place is P
i, then, the component carrier frequency at next time quantum physical channel data carried by data or measurement pilot signals place is P
(i+k) modn, wherein, k is a positive integer, mod is a modulo operation; K produces according to pseudo random sequence.
9, method as claimed in claim 2 is characterized in that, in the described step (2), in data re-transmission, the base station reconfigures the component carrier frequency at data retransmission place.
10, method as claimed in claim 2 is characterized in that, in the described step (2), in the each transmission of semi-persistent scheduling business datum, the base station reconfigures the component carrier frequency at semi-persistent scheduling business datum place.
11, method as claimed in claim 10 is characterized in that, described semi-persistent scheduling is professional to be speech business.
12, method as claimed in claim 3 is characterized in that, in the described step (b), in the each transmission of measurement pilot signals, the base station reconfigures the component carrier frequency at measurement pilot signals place.
As any described method in the claim 1～3, it is characterized in that 13, by the signaling terminal, perhaps base station and terminal are arranged the relevant information of frequency hopping transmission to the relevant information of frequency hopping transmission in advance by the base station; The relevant information of described frequency hopping transmission comprises the time and the mode of frequency hopping transmission.
14, as any described method in the claim 1～3, it is characterized in that whether frequency-hopping mode enables to notify terminal by the base station by high-level signaling, described high-level signaling is the above signaling of physical layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171269.0A CN101394199B (en) | 2008-10-30 | 2008-10-30 | Method for data transmission in large bandwidth system |
| PCT/CN2009/073274 WO2010048831A1 (en) | 2008-10-30 | 2009-08-14 | Data transmitting method in wider bandwidth system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171269.0A CN101394199B (en) | 2008-10-30 | 2008-10-30 | Method for data transmission in large bandwidth system |
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| Publication Number | Publication Date |
|---|---|
| CN101394199A true CN101394199A (en) | 2009-03-25 |
| CN101394199B CN101394199B (en) | 2017-04-12 |
Family
ID=40494307
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810171269.0A Expired - Fee Related CN101394199B (en) | 2008-10-30 | 2008-10-30 | Method for data transmission in large bandwidth system |
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| Country | Link |
|---|---|
| CN (1) | CN101394199B (en) |
| WO (1) | WO2010048831A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010048831A1 (en) * | 2008-10-30 | 2010-05-06 | 中兴通讯股份有限公司 | Data transmitting method in wider bandwidth system |
| CN101841372A (en) * | 2010-04-15 | 2010-09-22 | 武汉虹信通信技术有限责任公司 | Method for implementing continuous carrier frequency configuration for CDMA (Code Division Multiple Address) digital optical fiber repeater |
| CN101938748A (en) * | 2009-06-30 | 2011-01-05 | 华为技术有限公司 | Method for indicating channel configuration and method and equipment for receiving data |
| WO2011038666A1 (en) * | 2009-09-29 | 2011-04-07 | 大唐移动通信设备有限公司 | Method and device for determining carrier scheduling mode |
| WO2011120448A1 (en) * | 2010-04-02 | 2011-10-06 | Mediatek Inc. | Methods for carrier aggregation |
| EP2448312A1 (en) * | 2009-06-24 | 2012-05-02 | ZTE Corporation | Method for reporting measurement result of carrier aggregation and user equipment |
| CN102550108A (en) * | 2009-10-08 | 2012-07-04 | 高通股份有限公司 | Uplink resource allocation for lte advanced |
| CN102781110A (en) * | 2011-05-12 | 2012-11-14 | 中兴通讯股份有限公司 | Method and device for allocating resource location with frequency hopping function |
| CN102804845A (en) * | 2009-06-22 | 2012-11-28 | 松下电器产业株式会社 | Communication terminal |
| CN102055709B (en) * | 2009-11-05 | 2014-07-09 | 电信科学技术研究院 | Transmission method and device of measurement pilot frequency in long term evolution-advanced system |
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| CN101394199B (en) * | 2008-10-30 | 2017-04-12 | 中兴通讯股份有限公司 | Method for data transmission in large bandwidth system |
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2008
- 2008-10-30 CN CN200810171269.0A patent/CN101394199B/en not_active Expired - Fee Related
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2009
- 2009-08-14 WO PCT/CN2009/073274 patent/WO2010048831A1/en active Application Filing
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| CN102326424A (en) * | 2010-04-02 | 2012-01-18 | 联发科技股份有限公司 | Methods for carrier aggregation |
| CN101841372A (en) * | 2010-04-15 | 2010-09-22 | 武汉虹信通信技术有限责任公司 | Method for implementing continuous carrier frequency configuration for CDMA (Code Division Multiple Address) digital optical fiber repeater |
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| WO2018121481A1 (en) * | 2016-12-28 | 2018-07-05 | 华为技术有限公司 | Transmission method and device for measurement pilot signal |
| WO2019136688A1 (en) * | 2018-01-12 | 2019-07-18 | 北京小米移动软件有限公司 | Information feedback method and apparatus |
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| CN112118625A (en) * | 2019-06-19 | 2020-12-22 | 中国电信股份有限公司 | Transmission method, device and system for uplink data channel |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2010048831A1 (en) | 2010-05-06 |
| CN101394199B (en) | 2017-04-12 |
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