CN1863006A - Method for implementing multi-mode coexisting in communication system - Google Patents
Method for implementing multi-mode coexisting in communication system Download PDFInfo
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- CN1863006A CN1863006A CNA2005101034843A CN200510103484A CN1863006A CN 1863006 A CN1863006 A CN 1863006A CN A2005101034843 A CNA2005101034843 A CN A2005101034843A CN 200510103484 A CN200510103484 A CN 200510103484A CN 1863006 A CN1863006 A CN 1863006A
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Abstract
The invention provides the method of realizing the multi mode coexistence in the communicating system, the method mainly includes: the data streams of all the modes needing the coexistence in the communicating system can be combined to from the mixing frame list; according to the mode of the said mixing frame, the data of the user of the said modes can be transferred in the channel of the communicating system. Using the invention, only the one frequency segment can support the different modes, the spectral source can be saved, only the one set of the shooting frequency receiving and the transmitting dealing cell can transmit the data signal of the different modes to save the cost of the base station apparatus.
Description
Technical field
The present invention relates to communication field, relate in particular to the method that realizes multi-mode coexisting in a kind of communication system.
Background technology
The broadband access method that broadband wireless access BWA (Broadband wireless access, broadband wireless access) equipment can be provided convenience for the user.Broadband wireless access equipment based on proprietary protocol is arranged at present, the broadband wireless access equipment based on standard agreement is also arranged.The broadband wireless access equipment of IEEE (IEEE) 802.16 standard definitions is subclass of the series standard of wireless access wide band technology.
In 802.16 standards, for authorizing frequency range, duplex mode can be FDD (Frequency Division Duplexing (FDD)) and TDD (time division duplex), and the SS of FDD mode (subscriber station) can be half-duplex FDD.And for the frequency range of exempting to authorize, duplex mode can only be TDD.The descending employing of the multi-access mode of full duplex FDD mode TDM (time division multiplexing), the descending employing of the multi-access mode of half-duplex SS TDMA (time division multiple access), the multi-access mode of TDD mode is descending to have only TDM, last provisional capital to adopt TDMA.
The data of transmitting on physical channel are that the form with frame transmits.Every frame comprises DL (descending sub frame) and UL (sub-frame of uplink).In tdd mode, DL is transmission earlier, transmits UL subsequently.In fdd mode, DL and UL will transmit simultaneously.A DL comprises a DL PHY PDU (down physical layer protocol Data Unit), a sub-frame of uplink comprises each time slot of arranging in the following order: Initial R anging competition slot (Contention slot for initial ranging), bandwidth request competition slot (Contention slot for BW request) and one or more upstream physical layer protocol Data Unit (UL PHY PDU), each UL PHY PDU is from different SS (subscriber station).
Beginning of each descending PHY PDU is a preamble (lead code), and it is synchronous to be used for physics; Be FCH (frequency chirp), burst (burst) afterwards.Comprise DLFP (DL_Frame_Prefix) among the FCH, be used for specifying the profile and the length thereof that follow the one or more descending Burst after FCH closely.
Send DL-MAP message if desired in current downlink frame, then this message will be first MAC PDU (medium access control layer unit) that follows in the FCH back.If also need send UL-MAP message in current downlink frame, then this message is closelyed follow in DL-MAP or DLFP back.If also need send DCD and UCD message in current downlink frame, then they will be immediately following in DL-MAP and UL-MAP back.DL-MAP, DL-MAP, DCD and UCD will send in DL Burst #1.Position and the profile of other burst are specified by DL-MAP.If the DL PHY burst of OFDM (OFDM) physical layer, in order to obtain the integral multiple of OFDM symbol, effectively the 0xFF byte of using of load back deficiency is replenished (Pad).In the TDD system, TTG and RTG can be inserted in ascending-descending subframes when replacing, and allow BS finish transmitting-receiving alternately to reserve a period of time.
802.16 OFDM (or SC) frame structure under the tdd mode as shown in Figure 1.802.16 OFDM (or SC) frame structure under the fdd mode as shown in Figure 2, sub-frame of uplink sends on different frequencies with descending sub frame, corresponding semiduplex SS just can not send descending sub frame simultaneously when sub-frame of uplink sends.
802.16 OFDMA frame structures under the tdd mode as shown in Figure 3.In 802.16OFDMA under fdd mode (or SOFDMA) frame structure, sub-frame of uplink sends on different frequencies with descending sub frame.In 802.16 OFDMA modes, all effective subcarriers are divided into some sub-carrier set, and each sub-carrier set is called a subchannel (subchannel).PHY brust among OFDMA has been assigned with one group of adjacent subchannel and one group of OFDMA symbol (symbol).A brust can distribute to a SS (or one group of user) up, can issue SS as a transmitting element by BS descending.The initial access of up SS, periodicity Ranging, bandwidth request etc. are all undertaken by Rangingsubchannel.
Broadband fixed wireless at 802.16 standards inserts version, and promptly 802.16-2004 (being called for short " 16d ") has three kinds of patterns: single carrier (SC) modulating mode, 256 FFT OFDM modulating modes and 2048 FFT OFDMA modulating modes; Broadband mobile wireless at 802.16 standards inserts version, is called for short " 16e ", two kinds of patterns is arranged: 128/512/1024 FFT SOFDMA modulating mode and 2048 FFT OFDMA modulating modes (optional).Wherein with regard to the support of equipment vendor, 256 FFTOFDM are modulated to the main application model of 16d, and 128/512/1024 FFT SOFDMA modulating mode is the main application model of 16e.
16d and 16e are incompatible on main application model, and two kinds of patterns of 16d SC pattern and 16e are also all incompatible.16e 2048 FFT OFDMA patterns and 16e 128/512/1024 FFTSOFDMA pattern are also incompatible.
Suppose in actual applications, the former laying 16d of telecom operators network, need be with network by fixing to mobile evolution, so, the 16d base station equipment is upgraded to the 16e base station, though 16e can support new 16e mobile subscriber and 16e fixed-line subscriber, because 16d and the 16e incompatible property on main application model, therefore, the 16e base station after the upgrading can not the original 16d fixed-line subscriber of back compatible.
For addressing the above problem, a kind of multi-mode coexisting method is in the prior art: adopt bimodulus 802.16 base stations, support 16e user and 16d user simultaneously by dividing different frequency spectrum resources for 16d and 16e, for example 3.5G is allocated to 16d, and 2.6G is allocated to 16e.
The major defect of described multi-mode coexisting method of the prior art is: in the method, two frequency ranges must be arranged to support different mode, therefore, will cause the frequency spectrum resource waste.In the method, two cover radio-frequency receiving-transmitting processing units must be arranged, therefore, will cause the base station equipment complexity.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide the method that realizes multi-mode coexisting in a kind of communication system, thereby can save frequency spectrum resource, only just can support different mode with same frequency range.
The objective of the invention is to be achieved through the following technical solutions:
Realize the method for multi-mode coexisting in a kind of communication system, comprising:
A, the Frame of each pattern of needing in the communication system to coexist is made up, form the hybrid frame sequence;
B, according to the form of described hybrid frame sequence, the user's data of described each pattern of transmission on the physical channel of communication system.
Described steps A specifically comprises:
A1, the each several part time slot of the Frame of each pattern of needing in the communication system to coexist mixed by setting means be arranged in together, form the hybrid frame structure.
Described setting means comprises time division multiplexing mode.
Described steps A 1 also comprises:
In described hybrid frame structure, the uplink frame of the Frame of described each pattern that need coexist and the each several part time slot of downlink frame are according to former sequence arrangement.
Described steps A specifically comprises:
A2, be that unit mixes and is arranged in together by subframe, form the hybrid frame structure the Frame of each pattern of needing in the communication system to coexist.
Described steps A specifically comprises:
A3, the Frame of each pattern of needing in the communication system to coexist is arranged in together for unit mixes frame by frame, forms the hybrid frame structure.
The described Frame of each pattern of coexistence that needs comprises:
802.16 orthogonal frequency division multiplex OFDM frame and 802.16 OFDMs insert the OFDMA frame;
Or,
802.16 single carrier SC frame, 802.16 256 fast fourier transform FFT OFDM frames and 802.16 2048 FFT OFDMA frames;
Or,
802.16 the upgradeable OFDM of 128/512/1024 FFT inserts SOFDMA frame and 802.16 2048 FFT OFDMA frames.
Described hybrid frame structure comprises:
Hybrid frame structure under FDD pattern and the TDD pattern.
As seen from the above technical solution provided by the invention, the present invention combines by the Frame of each pattern that will need in the communication system to coexist, compares with prior art, has following advantage:
1, realized only just can supporting different mode, saved frequency spectrum resource with same frequency range.
2, realized only needing can launch once cover radio-frequency receiving-transmitting processing unit the data-signal of different mode, base station equipment constitutes simpler relatively, has saved the cost of base station equipment.
3, the invention solves 16d and 16e multi-mode coexisting problem; The determined three mould coexistence problems of SC pattern, 256FFT OFDM pattern and 2048 FFT OFDMA patterns of 16d; The 128/512/1024 FFT SOFDMA pattern of 16e and the bimodulus coexistence problems of 2048 FFT OFDMA patterns have been solved.
Description of drawings
Fig. 1 is 802.16 OFDM (or SC) the frame structure schematic diagram under the TDD;
Fig. 2 is 802.16 OFDM (or SC) the frame structure schematic diagram under the FDD;
Fig. 3 is 802.16 OFDMA (or SOFDMA) the frame structure schematic diagram under the TDD;
Fig. 4 is 16d and a 16e multi-mode coexisting hybrid frame structural representation under the TDD of the present invention;
Fig. 5 is 16d and a 16e multi-mode coexisting hybrid frame structural representation under the FDD of the present invention;
Fig. 6 is in a kind of replacement scheme of the present invention, 16d and 16e multi-mode coexisting hybrid frame structure under the TDD;
Fig. 7 is in a kind of replacement scheme of the present invention, 16d and 16e multi-mode coexisting hybrid frame structure under the FDD;
Fig. 8 is 16d and a 16e multi-mode coexisting hybrid frame structure under the TDD in the another kind of replacement scheme of the present invention;
Fig. 9 is 16d and a 16e multi-mode coexisting hybrid frame structure under the FDD in the another kind of replacement scheme of the present invention.
Embodiment
The invention provides the method that realizes multi-mode coexisting in a kind of communication system.Core of the present invention is: the Frame of each pattern of needing in the communication system to coexist is combined, form the hybrid frame structure, according to the form of this hybrid frame sequence, the described user's data that needs each pattern of coexistence of transmission on the physical channel of communication system.
The compound mode that the Frame of each pattern is made up of the present invention comprises multiple mode, such as, the each several part time slot of the Frame of each pattern of needs coexistences mixed being arranged in together by setting means; Is that unit mixes and is arranged in together with the Frame of each pattern of needs coexistences by subframe; The Frame of each pattern of needs coexistences is arranged in together for the unit mixing frame by frame.Mode of the present invention is suitable for multiple situation.
The present invention is that example is described the method for the invention with the coexistence problems of 802.16 OFDMA frames among 802.16 OFDM frames and the 16e among the 16d.
Describe the present invention in detail below in conjunction with accompanying drawing, the hybrid frame structure in a solution of solution 16d of the present invention and 16e multi-mode coexisting problem is: 16d and 16e multi-mode coexisting hybrid frame structure under 16d and 16e multi-mode coexisting hybrid frame structure and the FDD as shown in Figure 5 under the TDD as shown in Figure 4.
In 16d shown in the Figure 4 and 5 and 16e multi-mode coexisting hybrid frame structure, all comprise FCH burst, descending Burst and each several part time slot in former 802.16 OFDM (or SC) frame and former 802.16 OFDMA (or SOFDMA) downlink frame in each downlink frame.All comprise the each several part time slot in former 802.16OFDM (or SC) frame and former 802.16 OFDMA (or SOFDMA) uplink frame in each uplink frame.Specifically describe as follows:
In each downlink frame, the 16d H of DL PHY PDU comprise in former 802.16 OFDM (or SC) frame FCH burst and by the one or more descending Burst (comprising DL-MAP, DL-MAP, DCD and UCD) after FCH of following closely of DLFP appointment; The 16e H of DL PHY PDU comprise in former 802.16OFDMA (or SOFDMA) frame FCH burst and by the one or more descending Burst (comprising DL-MAP, DL-MAP, DCD and UCD) after FCH of following closely of DLFP appointment; Contention slot has comprised Initial R anging competition slot and bandwidth request competition slot.
In downlink frame, each several part time slot (as Preamble, FCH burst and other a series of burst) in each several part time slot in former 802.16 OFDM (or SC) downlink frame (as Preamble, FCH burst and other a series of burst) and former 802.16 OFDMA (or SOFDMA) downlink frame is by time-division multiplex mode mixed insertion.
In uplink frame, each several part time slot (as initial Ranging competition slot, bandwidth request competition slot and one or more upstream physical layer protocol Data Unit) in each several part time slot in former 802.16 OFDM (or SC) uplink frame (as initial Ranging competition slot, bandwidth request competition slot and one or more upstream physical layer protocol Data Unit) and former 802.16 OFDMA (or SOFDMA) uplink frame is also by time-division multiplex mode mixed insertion.
The time division multiplexing mode mixed insertion is not limited to the mode among Fig. 4 and Fig. 5, and each several part time slot (as Preamble, FCH burst and other a series of burst) must be pressed former sequence arrangement, on this basis can greyish white any alternate mixed insertion.The ash color part is by 256 FFT OFDM patterns or the modulation and demodulation of SC pattern, and white portion is by 128/512/1024 FFT SOFDMA pattern and 2048 FFT OFDMA pattern modulation and demodulation.
A replacement scheme of described solution above the present invention also provides with former 802.16 OFDM (or SC) frame and former 802.16 OFDMA (or SOFDMA) frame is that unit carries out mixed insertion by subframe in this replacement scheme.According to this scheme, under the TDD 16d and 16e multi-mode coexisting hybrid frame structure as shown in Figure 6,16d and 16e multi-mode coexisting hybrid frame structure are as shown in Figure 7 under the FDD.
Another replacement scheme of described solution was carried out mixed insertion for unit frame by frame with former 802.16 OFDM (or SC) frame and former 802.16 OFDMA (or SOFDMA) above the present invention also provided in this replacement scheme.In this replacement scheme, under the TDD 16d and 16e multi-mode coexisting hybrid frame structure as shown in Figure 8,16d and 16e multi-mode coexisting hybrid frame structure are as shown in Figure 9 under the FDD.
802.16 SC pattern, 802.16 256 FFT OFDM patterns and 802.16 2048 FFTOFDMA patterns, three mould coexistence problems, and the bimodulus coexistence problems of 802.16 128/512/1024 FFT SOFDMA pattern and 802.16 2048 FFT OFDMA patterns, also can adopt the Frame with each pattern recited above to combine, the method that forms the hybrid frame structure solves.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1, realize the method for multi-mode coexisting in a kind of communication system, it is characterized in that, comprising:
A, the Frame of each pattern of needing in the communication system to coexist is made up, form the hybrid frame sequence;
B, according to the form of described hybrid frame sequence, the user's data of described each pattern of transmission on the physical channel of communication system.
2, according to the method that realizes multi-mode coexisting in the described communication system of claim 1, it is characterized in that described steps A specifically comprises:
A1, the each several part time slot of the Frame of each pattern of needing in the communication system to coexist mixed by setting means be arranged in together, form the hybrid frame structure.
3, according to the method that realizes multi-mode coexisting in the described communication system of claim 2, it is characterized in that described setting means comprises time division multiplexing mode.
4, according to the method that realizes multi-mode coexisting in the described communication system of claim 3, it is characterized in that described steps A 1 also comprises:
In described hybrid frame structure, the uplink frame of the Frame of described each pattern that need coexist and the each several part time slot of downlink frame are according to former sequence arrangement.
5, according to the method that realizes multi-mode coexisting in the described communication system of claim 1, it is characterized in that described steps A specifically comprises:
A2, be that unit mixes and is arranged in together by subframe, form the hybrid frame structure the Frame of each pattern of needing in the communication system to coexist.
6, according to the method that realizes multi-mode coexisting in the described communication system of claim 1, it is characterized in that described steps A specifically comprises:
A3, the Frame of each pattern of needing in the communication system to coexist is arranged in together for unit mixes frame by frame, forms the hybrid frame structure.
According to the method that realizes multi-mode coexisting in claim 1,2,3,4, the 5 or 6 described communication systems, it is characterized in that 7, the described Frame of each pattern of coexistence that needs comprises:
802.16 orthogonal frequency division multiplex OFDM frame and 802.16 OFDMs insert the OFDMA frame;
Or,
802.16 single carrier SC frame, 802.16 256 fast fourier transform FFT OFDM frames and 802.16 2048 FFT OFDMA frames;
Or,
802.16 the upgradeable OFDM of 128/512/1024FFT inserts SOFDMA frame and 802.16 2048 FFT OFDMA frames.
8, according to the method for multi-mode coexisting in the described realization communication system of claim 7, it is characterized in that described hybrid frame structure comprises:
Hybrid frame structure under FDD pattern and the TDD pattern.
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| CNA2005101034843A CN1863006A (en) | 2005-09-19 | 2005-09-19 | Method for implementing multi-mode coexisting in communication system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465688A (en) * | 2007-12-18 | 2009-06-24 | 三星电子株式会社 | Embedded compatible method of wideband wireless access system |
| CN101926145A (en) * | 2008-01-21 | 2010-12-22 | 北方电讯网络有限公司 | Communicating over wireless link using data container structure that has partitions of different types |
| CN102273162A (en) * | 2009-01-07 | 2011-12-07 | Lg电子株式会社 | A method and device for transmitting and receiving a signal using a time division duplexing frame structure in a wireless communication system |
| CN101442357B (en) * | 2007-11-19 | 2012-10-10 | 电信科学技术研究院 | Method and system for wireless transmission adopting Relay supported frame structure |
| CN101282568B (en) * | 2007-04-03 | 2012-10-10 | 中兴通讯股份有限公司 | System capable of combination support of a plurality of multiple accesses |
| CN101682411B (en) * | 2007-06-13 | 2013-01-30 | Lg电子株式会社 | Method for receiving system information |
| CN101904125B (en) * | 2007-11-09 | 2015-02-04 | 中兴通讯美国公司 | Flexible OFDM/OFDMA frame structure for communication systems |
| CN104869583A (en) * | 2009-01-23 | 2015-08-26 | 高通股份有限公司 | Method and system for wireless coverage redundancy |
| CN112714485A (en) * | 2019-10-24 | 2021-04-27 | 广州海格通信集团股份有限公司 | Network convergence communication method, device, base station and storage medium |
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| CN1205816A (en) * | 1995-10-26 | 1999-01-20 | 全点有限公司 | Coexisting communication systems |
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2005
- 2005-09-19 CN CNA2005101034843A patent/CN1863006A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1205816A (en) * | 1995-10-26 | 1999-01-20 | 全点有限公司 | Coexisting communication systems |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282568B (en) * | 2007-04-03 | 2012-10-10 | 中兴通讯股份有限公司 | System capable of combination support of a plurality of multiple accesses |
| CN101682411B (en) * | 2007-06-13 | 2013-01-30 | Lg电子株式会社 | Method for receiving system information |
| CN101904125B (en) * | 2007-11-09 | 2015-02-04 | 中兴通讯美国公司 | Flexible OFDM/OFDMA frame structure for communication systems |
| CN101442357B (en) * | 2007-11-19 | 2012-10-10 | 电信科学技术研究院 | Method and system for wireless transmission adopting Relay supported frame structure |
| CN101465688A (en) * | 2007-12-18 | 2009-06-24 | 三星电子株式会社 | Embedded compatible method of wideband wireless access system |
| CN101926145B (en) * | 2008-01-21 | 2013-12-11 | 苹果公司 | Node execution method for wireless communication and wireless communication node |
| CN101926145A (en) * | 2008-01-21 | 2010-12-22 | 北方电讯网络有限公司 | Communicating over wireless link using data container structure that has partitions of different types |
| CN102273162A (en) * | 2009-01-07 | 2011-12-07 | Lg电子株式会社 | A method and device for transmitting and receiving a signal using a time division duplexing frame structure in a wireless communication system |
| CN102273162B (en) * | 2009-01-07 | 2014-04-09 | Lg电子株式会社 | Method and device for transmitting and receiving signal using time division duplexing frame structure in wireless communication system |
| US8699385B2 (en) | 2009-01-07 | 2014-04-15 | Lg Electronics Inc. | Method for transmitting and receiving signals using a time division duplexing frame structure |
| CN104869583A (en) * | 2009-01-23 | 2015-08-26 | 高通股份有限公司 | Method and system for wireless coverage redundancy |
| CN104869583B (en) * | 2009-01-23 | 2018-08-03 | 高通股份有限公司 | method and system for wireless coverage redundancy |
| CN112714485A (en) * | 2019-10-24 | 2021-04-27 | 广州海格通信集团股份有限公司 | Network convergence communication method, device, base station and storage medium |
| CN112714485B (en) * | 2019-10-24 | 2023-02-03 | 广州海格通信集团股份有限公司 | Network convergence communication method, device, base station and storage medium |
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