CN101119153A - Method for selecting wireless digital relay system and transmission time spacing - Google Patents
Method for selecting wireless digital relay system and transmission time spacing Download PDFInfo
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- CN101119153A CN101119153A CNA2006100891181A CN200610089118A CN101119153A CN 101119153 A CN101119153 A CN 101119153A CN A2006100891181 A CNA2006100891181 A CN A2006100891181A CN 200610089118 A CN200610089118 A CN 200610089118A CN 101119153 A CN101119153 A CN 101119153A
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Abstract
The present invention discloses a method of wireless digital relay system and transmission time interval selection, which is suitable for time division duplex wireless communication system. The relay system comprises at least a wireless digital repeater, at least a base station, at least a mobile terminal. Linkage between the base station and the wireless digital repeater is divided into a first uplink and a first downlink; the linkage between the wireless digital repeater and the mobile terminal is divided into a second uplink and a second downlink; the linkage between the base station and the mobile terminal is divided into a third uplink and a third downlink; the first uplink and the first downlink adopt the fixed transmission time interval; the second uplink, the second downlink, the third uplink and the third downlink select adaptively the transmission time interval according to the channel quality of corresponding linkage. By supporting flexible transmission interval, the invention uses the optimal transmission time interval in different channel conditions, optimizes transmission efficiency and time delay, and saves transmission power.
Description
Technical field
The present invention relates to the communications field, particularly relate to and choose Transmission Time Interval (Transmit Time Interval, method TTI) in the TDD radio communication system flexibly.
Background technology
Cell mobile communication systems wireless access network (the RadioAccess Network that the research project IST-2003-507581 WINNERD3.4 that sets up in the informationized society technical research of Europe provides based on the fixed wireless digital repeater, RAN) Bu Fen basic structure is as shown in Figure 1: several wireless digital repeater 101a～101n according to certain mode be distributed in cellular basestation 102 around, portable terminal 103 is set up communication link by certain or some wireless digital repeater and cellular basestation 102, is to set up communication link by a wireless digital repeater 101f with the mode and the cellular basestation 102 of double bounce among Fig. 1.104 couples of wireless digital repeater 101a～101n of relay administrative unit control, and it carries out integrated management to the working time slot of wireless digital repeater 101a～101n, working frequency points, code modulation mode etc.
Existing fixed TDD (Time Division Duplex, time division duplex) the wireless digital relay system shortcoming is not support Transmission Time Interval flexibly, so just can't efficiency of transmission and time delay be optimized, be unfavorable for that also portable terminal reduces transmitting power by time diversity.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of wireless digital relay system and Transmission Time Interval choosing method, be used under the different channels environment, optimizing efficiency of transmission and time delay, and portable terminal realizes saving transmitting power by time diversity by the Transmission Time Interval that uses optimum.
To achieve these goals, the invention provides a kind of wireless digital relay system, be applicable to TDD radio communication system, this relay system comprises at least one wireless digital repeater, at least one base station, at least one portable terminal, it is characterized in that,
Linking between described base station and the described wireless digital repeater is divided into first up link, first down link; Linking between described wireless digital repeater and the described portable terminal is divided into second up link, second down link; Linking between described base station and the described portable terminal is divided into the 3rd up link, the 3rd down link;
Described first up link, described first down link adopt fixing Transmission Time Interval; Described second up link, described second down link, described the 3rd up link, described the 3rd down link are according to the channel quality condition self-adaptive selecting transmission time spacing of respective links.
Described wireless digital relay system, wherein, adopt frame structure to carry out transfer of data between described wireless digital repeater, the described base station and between the described wireless digital repeater, described portable terminal, this frame structure comprise support described wireless digital repeater towards the antenna of described base station and on the antenna of described portable terminal received signal or the time slot that transmits simultaneously simultaneously.
Described wireless digital relay system, wherein, described TDD radio communication system is a TD-SCDMA system.
Described wireless digital relay system, wherein, at least one PHS base station is set in the overlay area of described base station, some or all of described wireless digital repeater and described PHS base station location altogether are provided with, and supply line or shared power supply are shared in the wireless digital repeater and the described PHS base station of location setting altogether with described PHS base station.
To achieve these goals, the present invention also provides a kind of choosing method of the Transmission Time Interval based on described system, it is characterized in that, comprising:
Step 1 is provided with between described base station and the described wireless digital repeater and sets up and link by first up link, first down link; Be provided with between described wireless digital repeater and the described portable terminal and set up and link by second up link, second down link; Be provided with between described base station and the described portable terminal and set up and link by the 3rd up link, the 3rd down link;
Step 2, described first up link, described first down link carry out transfer of data with the constant transmissions time interval; Simultaneously, described portable terminal to the channel quality of described wireless digital repeater is judged the Transmission Time Interval of adaptively selected described second up link, described second down link; Described portable terminal to the channel quality of described base station is judged the Transmission Time Interval of adaptively selected described the 3rd up link, described the 3rd down link.
The choosing method of described Transmission Time Interval wherein, between described step 1, the described step 2, also comprises:
Step 61 receives the service request of described portable terminal by described base station, and obtains needed quality of service of described portable terminal and Radio Resource according to this service request;
Step 62 receives the measurement data of described portable terminal to channel by described base station;
Step 63 is set up the linking relationship between described base station and the described portable terminal or is set up linking relationship between described base station and the described portable terminal by described wireless digital repeater according to described measurement data.
The choosing method of described Transmission Time Interval, wherein, described in the described portable terminal step that extremely channel quality of described wireless digital repeater is judged, when signal interference ratio is preset thresholding less than the fading factor of one first default thresholding, channel greater than one second, and the frequency of the amplitude fading zero crossing of described system received signal is during greater than a predetermined value, then bad channel quality.
The choosing method of described Transmission Time Interval, wherein, the Transmission Time Interval of described second up link, described second down link is 5ms.
The choosing method of described Transmission Time Interval, wherein, described in the described portable terminal step that extremely channel quality of described base station is judged, when signal interference ratio is preset thresholding greater than the fading factor of one first default thresholding, channel less than one second, and the frequency of the amplitude fading zero crossing of described system received signal is during less than a predetermined value, and then channel quality is good.
The choosing method of described Transmission Time Interval, wherein, the Transmission Time Interval of described the 3rd up link, described the 3rd down link is more than or equal to 20ms.
Technique effect of the present invention is:
1), repeater sends time to base station, repeater to portable terminal, receive simultaneously and produced the multiplexing frequency spectrum of two hopscotch, improved the availability of frequency spectrum;
2), repeater sends time to base station, repeater to portable terminal, receive simultaneously and made full use of the donor antenna of fixed repeater and the directivity that retransmitting antenna has, when several base stations synchronously transmits to this sub-district, do not disturb mutually between the base station, the base station can utilize the donor antenna of repeater and the directivity of retransmitting antenna to suppress effectively to the interference of the repeater of adjacent sub-district;
3), made full use of the existing resource of operator, also solved powerup issue with PHS (Personal Handy-phone System, personnel hand system/Personal Handyphone System) the fixed repeater installation method of base station colocation site.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the structural representation of existing fixed wireless digital relay system;
Fig. 2 is the structural representation of wireless digital relay system of the present invention;
Fig. 3 chooses the schematic flow sheet of Transmission Time Interval for the present invention.
Embodiment
See also shown in Figure 2ly, be the structural representation of wireless digital relay system of the present invention.This wireless digital relay system comprises: one or more wireless digital repeater 101, one or more base station 102, one or more portable terminal 103.Wherein, base station 102 both can establish a communications link with portable terminal 103 in a conventional manner, also can establish a communications link by wireless digital repeater 101 and portable terminal 103.Herein, portable terminal 103 comprises two portable terminals, i.e. portable terminal 103a, portable terminal 103b.
Adopt Transmission Time Interval TTI flexibly to improve the efficiency of transmission of system between wireless digital repeater 101, the base station 102 and between the wireless digital repeater 101, portable terminal 103.Adopt frame structure between wireless digital repeater 101, the base station 102 and between the wireless digital repeater 101, portable terminal 103, the feature of this frame structure be comprise support wireless digital repeater 101 towards the antenna of base station 102 and on the antenna of portable terminal 103 received signal or the time slot that transmits simultaneously simultaneously.
The wireless digital relay system adopts Transmission Time Interval TTI flexibly to improve the efficiency of transmission of system.
In conjunction with Fig. 1, further describe TD-SCDMA (Time Division-Synchronous CodeDivision Multiple Access, the TD SDMA access) system and method for system and PHS system synergistic working, wireless relay system of the present invention is placed system shown in Figure 1, this moment, base station 102 was base stations of TD-SCDMA system, there are several PHS base stations in the overlay area of base station 102, the base station of TD-SCDMA system and PHS base station can belong to same operator, also can not belong to same operator.In order to save the powerup issue of networking cost and solution repeater, wireless digital repeater that base station 102 is covered 101 all or part of with 102 overlay areas, base station in the PHS base station be provided with the location altogether, and with the PHS base station shared supply line of wireless digital repeater 101 and PHS base station or the shared power supply that are provided with of location altogether.
Because having ensured between the base station 102 of wireless digital repeater 101 and TD-SCDMA system, the directivity of the laying of wireless digital repeater 101 height and antenna has the good wireless channel, therefore, adopting size between the base station 102 of wireless digital repeater 101 and TD-SCDMA system is the Transmission Time Interval TTI of 5ms.
For directly setting up the portable terminal 103b of communication link 903 with the base station 102 of TD-SCDMA system, and the portable terminal 103a that sets up communication link 902 by the wireless digital repeater 101 and the base station 102 of TD-SCDMA system, because moving of portable terminal 103, when being, link 903 and 902 channel quality become, in order to provide professional with suitable manner to portable terminal 103a, 103b, network is judged the channel quality of link 903 and 902 in real time and is adjusted link 903 and the 902 Transmission Time Interval TTI that use adaptively according to judged result.
In conjunction with Fig. 2, further describe the basic principle that Transmission Time Interval TTI chooses, the base station 102 among Fig. 2 to the link 901 of wireless digital repeater 101 is divided into up link RB and down link BR; Wireless digital repeater 101 to the link 902 of portable terminal 103a is divided into up link MR and down link RM; Base station 102 to the link 903 of portable terminal 103b is divided into up link MB and down link BM.
The basic principle that Transmission Time Interval TTI chooses is specifically: fixing TTI is used in base station 102 to the link 901 of wireless digital repeater 101, such as, TTI elects 5ms as; The link 903 of wireless digital repeater 101 to the link 902 of portable terminal 103a, base station 102 to portable terminal 103b for example, selected to be greater than or equal to certain time of 20ms as TTI according to link and the adaptively selected TTI of quality situation.
Wherein, the link 903 of wireless digital repeater 101 to the link 902 of portable terminal 103a, base station 102 to portable terminal 103b be according to the principle of link and the adaptively selected TTI of quality situation specifically: when the bad channel quality of link, distribute to the short TTI of real-time business, such as, TTI elects 5ms as, and when the channel quality of link is good, adopts and be greater than or equal to certain time of 20ms as TTI.
Wherein, the determination methods of channel quality quality is:
1), whether judge signal interference ratio greater than a default thresholding TH_SIR, good if signal interference ratio during greater than default thresholding TH_SIR, is judged to channel quality, during less than default thresholding TH_SIR, be judged to bad channel quality as if signal interference ratio; TH_SIR is the numerical value greater than 3 decibels, and TH_SIR typical case value is 10 decibels;
2), the fading factor ρ of calculating channel is by relatively fading factor ρ and default thresholding TH_fade judge the channel quality quality; If fading factor ρ during less than default thresholding TH_fade, judges that channel is slight fading channel, if fading factor ρ is during greater than default thresholding TH_fade, the judgement channel is deep fading's channel.Wherein, the value of default thresholding TH_fade is the decimal greater than zero, and typical value is 0.2.
ρ=σ/μ, wherein σ is the standard deviation of received signal power time delay distribution, μ is the average of received signal power time delay distribution; For the aerial array that the individual antenna of N (natural number greater than 1) constitutes, σ is the standard deviation of received signal power on N the reception antenna, and μ is the average of received signal power on N the reception antenna.
3), judge the translational speed of transmitter, translational speed can have multiple determination methods, such as, adopt " zero wears " frequency of received signal to judge; " zero wears " frequency is meant the frequency of signal amplitude decline zero crossing; When " zero wear " frequency during greater than a predetermined value TH_zero, just think that transmitter is in high-speed moving state, when " zero wears " frequency during, just think that transmitter is in the low speed mobile status less than a predetermined value TH_zero; The typical value of TH_zero is 10.
When signal interference ratio greater than default thresholding TH_SIR, ρ=σ/μ less than default thresholding TH_fade, and " zero wear " frequency just thinks that channel quality is good during less than predetermined value TH_zero.
When signal interference ratio less than default thresholding TH_SIR, ρ=σ/μ greater than default thresholding TH_fade, and " zero wear " frequency is during greater than predetermined value TH_zero, just thinks bad channel quality.
See also shown in Figure 3ly, choose the schematic flow sheet of Transmission Time Interval for the present invention.In conjunction with Fig. 1,2, this schematic flow sheet has been described the mode schematic diagram of a kind of flexible use TTI.The basic step that the present invention chooses Transmission Time Interval TTI is as follows:
A1), whether judge signal interference ratio greater than a default thresholding TH_SIR, good if signal interference ratio during greater than default thresholding TH_SIR, is judged to channel quality, during less than default thresholding TH_SIR, be judged to bad channel quality as if signal interference ratio; TH_SIR is the numerical value greater than 3 decibels, and TH_SIR typical case value is 10 decibels.
A2), the fading factor ρ of calculating channel is by relatively fading factor ρ and default thresholding TH_fade judge the channel quality quality; If fading factor ρ during less than default thresholding TH_fade, judges that channel is slight fading channel, if fading factor ρ is during greater than default thresholding TH_fade, the judgement channel is deep fading's channel.Wherein, the value of default thresholding TH_fade is the decimal greater than zero, and typical value is 0.2.
ρ=σ/μ, wherein σ is the standard deviation of received signal power time delay distribution, μ is the average of received signal power time delay distribution; For the aerial array that the individual antenna of N (natural number greater than 1) constitutes, σ is the standard deviation of received signal power on N the reception antenna, and μ is the average of received signal power on N the reception antenna.
A3), judge the translational speed of transmitter, translational speed can have multiple determination methods, such as, adopt " zero wears " frequency of received signal to judge; " zero wears " frequency is meant the frequency of signal amplitude decline zero crossing; When " zero wear " frequency during greater than a predetermined value TH_zero, just think that transmitter is in high-speed moving state, when " zero wears " frequency during, just think that transmitter is in the low speed mobile status less than a predetermined value TH_zero; The typical value of TH_zero is 10.
When signal interference ratio greater than default thresholding TH_SIR, ρ=σ/μ less than default thresholding TH_fade, and " zero wear " frequency just thinks that channel quality is good during less than predetermined value TH_zero;
Step 908 is carried out the channel quality judgement of portable terminal 103a to wireless digital repeater 101, and determination methods is:
B1), whether judge signal interference ratio greater than a default thresholding TH_SIR, good if signal interference ratio during greater than default thresholding TH_SIR, is judged to channel quality, during less than default thresholding TH_SIR, be judged to bad channel quality as if signal interference ratio; TH_SIR is the numerical value greater than 3 decibels, and TH_SIR typical case value is 10 decibels.
B2), the fading factor ρ of calculating channel is by relatively fading factor ρ and default thresholding TH_fade judge the channel quality quality; If fading factor ρ during less than default thresholding TH_fade, judges that channel is slight fading channel, if fading factor ρ is during greater than default thresholding TH_fade, the judgement channel is deep fading's channel.Wherein, the value of default thresholding TH_fade is the decimal greater than zero, and typical value is 0.2.
ρ=σ/μ, wherein σ is the standard deviation of received signal power time delay distribution, μ is the average of received signal power time delay distribution; For the aerial array that the individual antenna of N (natural number greater than 1) constitutes, σ is the standard deviation of received signal power on N the reception antenna, and μ is the average of received signal power on N the reception antenna.
B3), judge the translational speed of transmitter, translational speed can have multiple determination methods, such as, adopt " zero wears " frequency of received signal to judge; " zero wears " frequency is meant the frequency of signal amplitude decline zero crossing; When " zero wear " frequency during greater than a predetermined value TH_zero, just think that transmitter is in high-speed moving state, when " zero wears " frequency during, just think that transmitter is in the low speed mobile status less than a predetermined value TH_zero; The typical value of TH_zero is 10.
When signal interference ratio less than default thresholding TH_SIR, ρ=σ/μ greater than default thresholding TH_fade, and " zero wear " frequency is during greater than predetermined value TH_zero, just thinks bad channel quality;
Step 909 is chosen Transmission Time Interval TTI.
Only when the bad channel quality of link, distribute to the short TTI of real-time business, elect 5ms as, when channel quality is good, adopts and be greater than or equal to certain time of 20ms as TTI as TTI.
The above-mentioned method step of choosing Transmission Time Interval TTI both can be used for determining of TTI in the uplink service, also can be used for determining of downlink business TTI.
System and method of the present invention can significantly improve time division duplex mobile communication system, transmission rate and spectrum efficiency as the TD-SCDMA system, significantly reduce the time delay that wireless digital repeater is introduced, significantly reduce portable terminal and transmit, and realizability is strong the interference of adjacent cell base station.
The present invention uses optimum Transmission Time Interval by supporting Transmission Time Interval flexibly under the different channels environment, make efficiency of transmission and time delay be optimized, and portable terminal realizes saving transmitting power by time diversity.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. a wireless digital relay system is applicable to TDD radio communication system, and this relay system comprises at least one wireless digital repeater, at least one base station, at least one portable terminal, it is characterized in that,
Linking between described base station and the described wireless digital repeater is divided into first up link, first down link; Linking between described wireless digital repeater and the described portable terminal is divided into second up link, second down link; Linking between described base station and the described portable terminal is divided into the 3rd up link, the 3rd down link;
Described first up link, described first down link adopt fixing Transmission Time Interval; Described second up link, described second down link, described the 3rd up link, described the 3rd down link are according to the channel quality condition self-adaptive selecting transmission time spacing of respective links.
2. wireless digital relay system according to claim 1, it is characterized in that, adopt frame structure to carry out transfer of data between described wireless digital repeater, the described base station and between the described wireless digital repeater, described portable terminal, this frame structure comprise support described wireless digital repeater towards the antenna of described base station and on the antenna of described portable terminal received signal or the time slot that transmits simultaneously simultaneously.
3. wireless digital relay system according to claim 1 and 2 is characterized in that, described TDD radio communication system is a TD-SCDMA system.
4. wireless digital relay system according to claim 3, it is characterized in that, at least one PHS base station is set in the overlay area of described base station, some or all of described wireless digital repeater and described PHS base station location altogether are provided with, and supply line or shared power supply are shared in the wireless digital repeater and the described PHS base station of location setting altogether with described PHS base station.
5. the choosing method based on the Transmission Time Interval of the described system of claim 1 is characterized in that, comprising:
Step 1 is provided with between described base station and the described wireless digital repeater and sets up and link by first up link, first down link; Be provided with between described wireless digital repeater and the described portable terminal and set up and link by second up link, second down link; Be provided with between described base station and the described portable terminal and set up and link by the 3rd up link, the 3rd down link;
Step 2, described first up link, described first down link carry out transfer of data with the constant transmissions time interval; Simultaneously, described portable terminal to the channel quality of described wireless digital repeater is judged the Transmission Time Interval of adaptively selected described second up link, described second down link; Described portable terminal to the channel quality of described base station is judged the Transmission Time Interval of adaptively selected described the 3rd up link, described the 3rd down link.
6. the choosing method of Transmission Time Interval according to claim 5 is characterized in that, between described step 1, the described step 2, also comprises:
Step 61 receives the service request of described portable terminal by described base station, and obtains needed quality of service of described portable terminal and Radio Resource according to this service request;
Step 62 receives the measurement data of described portable terminal to channel by described base station;
Step 63 is set up the linking relationship between described base station and the described portable terminal or is set up linking relationship between described base station and the described portable terminal by described wireless digital repeater according to described measurement data.
7. according to the choosing method of claim 5 or 6 described Transmission Time Intervals, it is characterized in that, described in the described portable terminal step that extremely channel quality of described wireless digital repeater is judged, when signal interference ratio is preset thresholding less than the fading factor of one first default thresholding, channel greater than one second, and the frequency of the amplitude fading zero crossing of described system received signal is during greater than a predetermined value, then bad channel quality.
8. the choosing method of Transmission Time Interval according to claim 7 is characterized in that, the Transmission Time Interval of described second up link, described second down link is 5ms.
9. according to the choosing method of claim 5 or 6 described Transmission Time Intervals, it is characterized in that, described in the described portable terminal step that extremely channel quality of described base station is judged, when signal interference ratio is preset thresholding greater than the fading factor of one first default thresholding, channel less than one second, and the frequency of the amplitude fading zero crossing of described system received signal is during less than a predetermined value, and then channel quality is good.
10. the choosing method of Transmission Time Interval according to claim 9 is characterized in that, the Transmission Time Interval of described the 3rd up link, described the 3rd down link is more than or equal to 20ms.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009132579A1 (en) * | 2008-04-30 | 2009-11-05 | 华为技术有限公司 | Method and apparatus for adjustment of transmission time interval |
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| CN101945467A (en) * | 2010-09-19 | 2011-01-12 | 中兴通讯股份有限公司 | Communication quality guaranteeing method, system and mobile terminal |
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| CN109962712A (en) * | 2017-12-22 | 2019-07-02 | 群光电子股份有限公司 | Network on-line system and network connecting method |
| CN107431588B (en) * | 2015-03-20 | 2020-08-07 | Lg 电子株式会社 | Method for allocating time-frequency resources for short TTI and apparatus therefor |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799320B1 (en) * | 1999-10-04 | 2002-05-17 | Mitsubishi Electric France | FLOW BALANCING PROCESS BETWEEN CORRESPONDING DATA TRANSPORT CHANNELS, DEVICE, BASE STATION AND MOBILE STATION |
| JP2002232929A (en) * | 2001-02-01 | 2002-08-16 | Ntt Docomo Inc | Hand-over control method, mobile station and communication controller |
| SE0303602D0 (en) * | 2003-12-30 | 2003-12-30 | Ericsson Telefon Ab L M | Method and arrangement in self-organizing cooperative network |
| EP1763932A4 (en) * | 2004-02-17 | 2010-01-06 | Huawei Tech Co Ltd | Multiplexing scheme in a communication system |
| US7584397B2 (en) * | 2004-06-10 | 2009-09-01 | Interdigital Technology Corporation | Method and apparatus for dynamically adjusting data transmission parameters and controlling H-ARQ processes |
-
2006
- 2006-08-03 CN CN2006100891181A patent/CN101119153B/en not_active Expired - Fee Related
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| CN101931960B (en) * | 2009-06-18 | 2014-02-05 | 电信科学技术研究院 | Method for avoid uplink transmission conflict, system and device |
| CN101931960A (en) * | 2009-06-18 | 2010-12-29 | 大唐移动通信设备有限公司 | Method for avoid uplink transmission conflict, system and device |
| WO2010145553A1 (en) * | 2009-06-19 | 2010-12-23 | 华为技术有限公司 | Method and network device for adjusting transmission timing interval |
| CN101932101A (en) * | 2009-06-19 | 2010-12-29 | 华为技术有限公司 | Transmission time interval (TTI) adjustment method and network equipment |
| CN101932101B (en) * | 2009-06-19 | 2015-03-11 | 华为技术有限公司 | Transmission time interval (TTI) adjustment method and network equipment |
| WO2011047616A1 (en) * | 2009-10-19 | 2011-04-28 | 华为技术有限公司 | Relay method, apparatus and system |
| WO2011060705A1 (en) * | 2009-11-18 | 2011-05-26 | 华为技术有限公司 | Method, base station and mobile terminal for transferring information based on target coding rate |
| US8526534B2 (en) | 2009-11-18 | 2013-09-03 | Huawei Technologies Co., Ltd. | Method for transmitting information according to target encoding rate, base station and mobile station |
| CN102687550B (en) * | 2009-12-24 | 2016-08-03 | 日本电气株式会社 | Trunking, relay system, trunking method, radio communications system and program |
| CN102687550A (en) * | 2009-12-24 | 2012-09-19 | 日本电气株式会社 | Relay device, relay system, relay method, radio communication system, and program |
| WO2012034326A1 (en) * | 2010-09-19 | 2012-03-22 | 中兴通讯股份有限公司 | Method, system for ensuring communication quality and mobile terminal |
| CN101945467A (en) * | 2010-09-19 | 2011-01-12 | 中兴通讯股份有限公司 | Communication quality guaranteeing method, system and mobile terminal |
| WO2015096821A1 (en) * | 2013-12-27 | 2015-07-02 | Huawei Technologies Co., Ltd. | System and Method for Adaptive TTI Coexistence with LTE |
| CN110380836B (en) * | 2013-12-27 | 2021-08-31 | 华为技术有限公司 | System and method for adaptive TTI coexistence with LTE |
| US10200137B2 (en) | 2013-12-27 | 2019-02-05 | Huawei Technologies Co., Ltd. | System and method for adaptive TTI coexistence with LTE |
| CN110380836A (en) * | 2013-12-27 | 2019-10-25 | 华为技术有限公司 | The system and method that adaptive TTI and LTE coexists |
| US11606179B2 (en) | 2013-12-27 | 2023-03-14 | Huawei Technologies Co., Ltd. | System and method for adaptive TTI coexistence with LTE |
| US10903963B2 (en) | 2013-12-27 | 2021-01-26 | Huawei Technologies Co., Ltd. | System and method for adaptive TTI coexistence with LTE |
| CN107431588B (en) * | 2015-03-20 | 2020-08-07 | Lg 电子株式会社 | Method for allocating time-frequency resources for short TTI and apparatus therefor |
| US10743333B2 (en) | 2015-03-20 | 2020-08-11 | Lg Electronics Inc. | Method for dynamically allocating resources to frequency band of short TTI and device using same |
| CN109962712A (en) * | 2017-12-22 | 2019-07-02 | 群光电子股份有限公司 | Network on-line system and network connecting method |
| CN112019426A (en) * | 2020-08-25 | 2020-12-01 | 北京升哲科技有限公司 | Information interaction system |
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