[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN102740375A - Method for configuring wireless parameters and transmitting signals and device - Google Patents

Method for configuring wireless parameters and transmitting signals and device Download PDF

Info

Publication number
CN102740375A
CN102740375A CN2011100899042A CN201110089904A CN102740375A CN 102740375 A CN102740375 A CN 102740375A CN 2011100899042 A CN2011100899042 A CN 2011100899042A CN 201110089904 A CN201110089904 A CN 201110089904A CN 102740375 A CN102740375 A CN 102740375A
Authority
CN
China
Prior art keywords
configuration
dispatching station
sample frequency
subcarrier spacing
subcarrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011100899042A
Other languages
Chinese (zh)
Inventor
方惠英
郁光辉
夏树强
张峻峰
郝鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN2011100899042A priority Critical patent/CN102740375A/en
Priority to PCT/CN2012/071101 priority patent/WO2012139433A1/en
Publication of CN102740375A publication Critical patent/CN102740375A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method for configuring wireless parameters and transmitting signals and a device so as to solve the problem that a system has excessively high cost and expense caused by the fact that wireless parameter selection and signal transmitting methods are not suitable for wireless data transmission in application scenes of indoor areas and hot spot areas. According to the invention, a common LTE mobile communication system crystal oscillator principle is followed in subcarrier spacing selection. The subcarrier spacing is configured to be an integral multiple of LTE mobile communication system subcarrier spacing. Sampling frequency is an integral multiple of the LTE mobile communication system sampling frequency. FFT points are configured to be no less than the integer of a ratio of the sampling frequency to the subcarrier spacing. Therefore, FFT implementation cost is reduced, the system cost of covering the indoor areas and hot spots is greatly reduced, dispatching efficiency can be improved, the system expense is reduced, system throughput is improved and a demand of data traffic is met.

Description

Method and device that a kind of wireless parameter configuration and signal send
Technical field
The present invention relates to digital communicating field, particularly relate to LTE (Long Term Evolution, Long Term Evolution) is indoor, focus covers evolution wireless parameter disposes and signal sends method and device.
Background technology
Along with popularizing of mobile Internet (Mobile Internet) and smart mobile phone, the mobile data traffic demand rapidly increases.According to authoritative institution's prediction, in following 10 years (2011-2020), the mobile data services amount is also doubled every year, will increase by 1,000 times in 10 years.
The data service ratio increases gradually in the carrier network, and it is professional to have influenced the conventional telecommunications level, and still, because data service is according to charge on traffic, its profit growth rate and flow load are not directly proportional.In addition, the data service that increases has fast proposed severe challenge to the transmittability of mobile communications network.Most mobile data services mainly occur in indoor and the focus environment, are presented as that nomadic/local wireless inserts scene.According to statistics, at present nearly 70% of the mobile data services amount occur in indoorly, and this ratio also will continue to increase, and expecting 2012 will be above 80%.Operator presses for the solution that two-forty is indoor, focus covers.
Indoor and hot spot data service feature for the user be generally fixing perhaps very low speed move, less demanding to mobility; On the other hand, data service is mainly Internet service, and (Quality of Serveice, requirement QoS) is more single, and far below the requirement of carrier class business to QoS to service quality.Traditional cell mobile communication systems mainly towards be high-speed mobile, the professional design of the carrier class of seamless switching, when it carried big flow low speed IP (Internet protocol) data packet traffic, efficient was on the low side, cost is too high.
To sum up; Honeycomb mobile operator needs low cost; Be fit to the solution that nomadic/local wireless data insert, under the prerequisite that reduces equipment cost, further reduce and optimize the expense of original system, with the throughput of further raising system, satisfy the data user's of high speed development demand.
Summary of the invention
In view of this; Main purpose of the present invention is to provide the method and the device of a kind of wireless parameter configuration and signal transmission; Be used for solving existing protocol; To application scenarios indoor, that focus covers,, cause the technical problem that system cost is too high, overhead is excessive because wireless parameter selection and signaling method are not suitable for the wireless data transmission of this scene.
For achieving the above object, technical scheme of the present invention is achieved in that
The method that a kind of wireless parameter configuration and signal send, this method comprises:
Steps A, the configuration subcarrier spacing Δ f of dispatching station, sample frequency f cAnd fast Fourier (FFT) points N, the said configuration subcarrier spacing Δ f of dispatching station is Long Term Evolution (LTE) GSM subcarrier spacing Δ f 1Integral multiple;
Step B, dispatching station configuration available subcarrier number;
Step C, dispatching station send data or frequency pilot sign on the available subcarrier of configuration.
Further, the said configuration subcarrier spacing Δ f of dispatching station is LTE GSM subcarrier spacing Δ f 1Integral multiple be specially: dispatching station configuration subcarrier spacing Δ f is LTE GSM subcarrier spacing Δ f 12 nDoubly, n is the integer greater than 0.
Preferably, the said configuration subcarrier spacing Δ f of dispatching station is LTE GSM subcarrier spacing Δ f 116 times, Δ f is specially 240 KHzs.
Further, the said configuration sample frequency f of dispatching station cMethod be:
The configuration sample frequency f of dispatching station cBe the integral multiple of WCDMA mobile communication system (WCDMA) GSM sample frequency, preferably, the configuration sample frequency f of dispatching station cBe 2 of WCDMA GSM sample frequency kDoubly, k is the integer greater than 0; Particularly, the said configuration sample frequency f of dispatching station cBe 8 times of WCDMA GSM sample frequency, f cBe specially 30.72 megahertzes.
Further, the method for the said configuration FFT of dispatching station points N is:
Dispatching station configuration FFT points N is more than or equal to sample frequency f cPositive integer with the ratio of subcarrier spacing Δ f.Preferably, dispatching station configuration FFT points N is more than or equal to sample frequency f cWith the smallest positive integral in 2 the power power integer doubly of the ratio of subcarrier spacing Δ f.
Further, the method for said dispatching station configuration available subcarrier number does;
Said dispatching station adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or semi-static configuration mode configuration each OFDM (OFDM) symbol.
The method that said employing fixed configurations mode disposes available subcarrier number in each OFDM symbol is: when system bandwidth is 20 megahertzes, and the sample frequency f of dispatching station cBe configured to 30.72 megahertzes, when the subcarrier spacing Δ f of dispatching station was configured to 240 KHzs, the FFT points N of said dispatching station was configured to 128, available subcarrier number N UsedBe preferably in 73,75 or 71 any.
The method that said employing dynamic-configuration mode disposes available subcarrier number in each OFDM symbol is:
D1, dispatching station adopt the system default configuration in the available subcarrier number that the OFDM of synchronizing channel and/or broadcast channel sends on the symbol;
D2, dispatching station send indication available subcarrier number configuration information asynchronous and that broadcast channel OFDM sends on the symbol and give the terminal;
D3, terminal know that according to the control information on synchronizing channel and/or the broadcast channel asynchronous and broadcast channel OFDM sends the available subcarrier number configuration information on the symbol in the system.
The method of available subcarrier number is in each OFDM symbol of the semi-static configuration mode configuration of said employing:
E1, confirm the system default configuration of available subcarrier number in the OFDM symbol;
E2, dispatching station adopt said system default configuration in the available subcarrier number that the OFDM of synchronizing channel and/or broadcast channel sends on the symbol;
E3, dispatching station send available subcarrier configuration indication as required;
E4, if the terminal is if receive the available subcarrier configuration indication of dispatching station, then confirm asynchronously in the system to send the available subcarrier number configuration on the symbol with broadcast channel OFDM based on available subcarrier configuration indication; If the terminal does not receive the available subcarrier configuration indication of dispatching station, confirm that then asynchronous available subcarrier number of sending on the symbol with broadcast channel OFDM is said system default configuration in the system.
Based on the embodiment of the invention, the present invention also proposes the device of a kind of wireless parameter configuration and signal transmission, and this device comprises:
Configuration module is used to the configuration subcarrier spacing Δ f of dispatching station, sample frequency f c, FFT points N and available subcarrier number;
Sending module is used on the available subcarrier of configuration, sending data or frequency pilot sign;
Said subcarrier spacing Δ f is LTE GSM subcarrier spacing Δ f 1Integral multiple; Said sample frequency f cIntegral multiple for WCDMA GSM sample frequency.
Further, said configuration module configures subcarrier spacing Δ f is LTE GSM subcarrier spacing Δ f 12 nDoubly, n is the integer greater than 0; Said configuration module configures sample frequency f cBe 2 of WCDMA GSM sample frequency kDoubly, k is the integer greater than 0.
Further, said configuration module configures FFT points N is more than or equal to sample frequency f cWith the smallest positive integral in 2 the power power integer doubly of the ratio of subcarrier spacing Δ f.
Further, said configuration module adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or each OFDM symbol of semi-static configuration mode configuration.
The present invention is directed to application scenarios indoor, that focus covers; In the selection of subcarrier spacing, following the principle of shared LTE GSM crystal oscillator, subcarrier spacing is configured to the integral multiple of LTE GSM subcarrier spacing, is the integral multiple of WCDMA GSM sample frequency with sample frequency; FFT counted be configured to positive integer more than or equal to the ratio of sample frequency and subcarrier spacing; Fast Fourier transformation algorithm (Fast Fourier Transform Algorithm, realization cost FFT), and then greatly reduce indoor, focus and cover the system cost of using have been reduced; Simultaneously can also improve dispatching efficiency; Reduce overhead, improve the throughput of system, thereby further satisfy the demand of data business volume.
Description of drawings
Fig. 1 is the sketch map that concerns of subcarrier spacing according to the invention and LTE GSM subcarrier spacing;
Fig. 2 be dispatching station of the present invention sample frequency and WCDMA GSM sample frequency concern sketch map;
Fig. 3 is that dispatching station of the present invention adopts the fixedly available subcarrier sketch map of available subcarrier method;
Fig. 4 is the implementation procedure of dynamic available subcarrier method to set up according to the invention;
Fig. 5 is the implementation procedure of semi-static available subcarrier method to set up according to the invention;
Fig. 6 is wireless parameter configuration according to the invention and signaling method realization flow.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and, the present invention is further explained with reference to accompanying drawing.
The present invention is directed to the LTE GSM and cover the characteristics of disposing application scenarios at indoor, focus; From reducing equipment cost, reducing the angle of system call expense, provide a kind of can reduction system and terminal hardware cost, help efficient scheduling and reduce the method for the wireless parameter configuration and the signal transmission of overhead.Cover channel circumstance to indoor, focus, the very little characteristics of delay expansion of channel, wireless parameter configuration and signaling method that the present invention proposes comprise following major technique characteristic:
(1) dispatching station (or claiming the base station) configuration subcarrier spacing is the integral multiple of LTE GSM subcarrier spacing;
Preferably, in the embodiment of the invention, the subcarrier spacing of dispatching station be set to the LTE GSM subcarrier spacing 2 nDoubly, n is the integer greater than 0;
Fig. 1 is the subcarrier spacing 102 of one embodiment of the present invention dispatching station and the sketch map that concerns of LTE GSM subcarrier spacing 101, and the subcarrier spacing Δ f of dispatching station is set to LTE GSM subcarrier spacing Δ f among this embodiment 12 nDoubly, i.e. Δ f=2 n* Δ f 1, Δ f wherein 1=15 KHzs (kHz) n=4, promptly the subcarrier spacing of dispatching station is Δ f=2 4* 15kHz=240kHz.
(2) dispatching station configuration sample frequency is the integral multiple of WCDMA GSM sample frequency;
Preferably, in the embodiment of the invention, 2 k the power that the sample frequency of dispatching station is configured to WCDMA GSM sample frequency doubly, k is the integer greater than 0.
Fig. 2 be one embodiment of the present invention dispatching station sample frequency and WCDMA GSM sample frequency concern sketch map.Among this embodiment, the sample frequency f of dispatching station cBe set to the integral multiple of the 3.84MHz of WCDMA GSM sample frequency, preferably be set to 2 of WCDMA GSM sample frequency kDoubly, wherein k=3, then the sample frequency f of dispatching station c=30.72 megahertzes (MHz).
(3) the FFT points N of dispatching station is set to more than or equal to sample frequency f cPositive integer with the ratio of subcarrier spacing Δ f;
Preferably, the FFT points N of dispatching station is set to more than or equal to f cSmallest positive integral in 2 the power power of the ratio of/Δ f in doubly the integer.
(4) in the dispatching station in each OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbol the available subcarrier number adopt fixed configurations mode, dynamic-configuration mode or semi-static configuration mode;
Fig. 3 disposes the sketch map of available subcarrier number in each OFDM symbol for dispatching station in one embodiment of the present invention adopts the fixed configurations mode.With the 20M bandwidth system is example, the sample frequency f of dispatching station cBe configured to 30.72MHz, for the continuous bandwidth system of 20M Hz, the subcarrier spacing Δ f of dispatching station is configured to 240kHz, so the FFT points N of dispatching station can be confirmed as more than or equal to f cSmallest positive integral in 2 the power power of/Δ f promptly adopts the FFT conversion of N=128, available subcarrier number N UsedBe preferably a kind of among 73 (like Fig. 3 (a)), 75 (like Fig. 3 (b)) or 71 (like Fig. 3 (c)).Said available subcarrier comprises direct current carrier wave DC.For N Used=73,75 or 71 available subcarrier, the available subcarrier number of dispatching station on the left side frequency band and the right frequency band is respectively 36,37 or 35, for N Used=73,75 or 71 available subcarrier, dispatching station on the left side frequency band and the right frequency band leave 5,4 or 6 protection subcarriers respectively.
Fig. 4 disposes the schematic flow sheet of available subcarrier number in each OFDM symbol for dispatching station in one embodiment of the present invention adopts the dynamic-configuration mode, and concrete steps are following:
Step 401, dispatching station adopt the system default configuration in the available subcarrier number that the OFDM of synchronizing channel and/or broadcast channel sends on the symbol;
The available subcarrier number configuration information that step 402, dispatching station send on the OFDM transmission symbol (asynchronous and broadcast channel sends symbol) of indicating other channels is given the terminal;
Step 403, terminal know that according to the control information on synchronizing channel and/or the broadcast channel other channels OFDM sends the available subcarrier number configuration information on the symbol in the system.
Fig. 5 disposes the schematic flow sheet of available subcarrier number in each OFDM symbol for dispatching station in one embodiment of the present invention adopts semi-static configuration mode, and concrete steps are following:
Step 501, confirm the system default configuration of available subcarrier number in the OFDM symbol;
Step 502, dispatching station adopt the system default configuration in the available subcarrier number that the OFDM of synchronizing channel and/or broadcast channel sends on the symbol;
Step 503, dispatching station send available subcarrier configuration indication as required.If the available subcarrier on other symbols of dispatching station (asynchronous and broadcast channel sends symbol) adopts the nonsystematic default configuration; Then dispatching station sends available subcarrier configuration indication information and gives the terminal, and said available subcarrier disposes and comprises available subcarrier number on the OFDM transmission symbol that dispatching station is a terminal configuration in the indication information.If the subcarrier on other symbols of dispatching station adopts default configuration, then dispatching station need not send available subcarrier configuration indication information;
Whether step 504, terminal basis receive the available subcarrier indication information of dispatching station is confirmed that the available subcarrier number of system disposes.The available subcarrier number configuration on the symbol is then sent according to OFDM on other channels in the definite system of available subcarrier configuration indication if receive the available subcarrier configuration indication information of dispatching station in the terminal; If the terminal does not receive the available subcarrier configuration indication of dispatching station, default system adopts default available subcarrier number configuration.
Embodiment 1
A kind of wireless parameter configuration that Fig. 6 provides for this embodiment and the flow chart of the method for signal transmission, this method comprises:
Step 601, dispatching station configuration subcarrier spacing, sample frequency and FFT count;
Among this embodiment, the subcarrier spacing Δ f of dispatching station is set to the subcarrier spacing Δ f of LTE GSM 1Integral multiple, preferably configurable be 2 n power doubly, n is the integer greater than 0; Concrete configuration can be following: as Δ f 1During=15kHz, configuration n=4, promptly the subcarrier spacing of dispatching station is Δ f=2 4* 15kHz=240kHz.
Step 602, dispatching station configuration available subcarrier number;
Among this embodiment, dispatching station adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or each OFDM symbol of semi-static configuration mode configuration;
Step 603, dispatching station send data or frequency pilot sign on the available subcarrier of configuration.
Embodiment 2
The flow process of the method that a kind of wireless parameter configuration that this embodiment provides and signal send is following:
Step 601A, dispatching station configuration subcarrier spacing, sample frequency and FFT count;
Among this embodiment, the sample frequency f of dispatching station cBe configured to the integral multiple of WCDMA GSM sample frequency, preferably configurable be 2 k power doubly, k is the integer greater than 0; Concrete configuration can be following: when WCDMA GSM sample frequency is 3.84MHz, dispose k=3, then the sample frequency f of dispatching station c=3.84MHz*2 3=30.72MHz.
Step 602A, dispatching station configuration available subcarrier number;
Preferably, dispatching station adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or each OFDM symbol of semi-static configuration mode configuration;
Step 603A, dispatching station send data or frequency pilot sign on the available subcarrier of configuration.
Embodiment 3
The flow process of the method that a kind of wireless parameter configuration that this embodiment provides and signal send is following:
Step 601B, dispatching station configuration subcarrier spacing, sample frequency and FFT count;
Among this embodiment, the subcarrier spacing Δ f of dispatching station is configured to the subcarrier spacing Δ f of LTE GSM 12 4Doubly, Δ f 1During=15kHz, the subcarrier spacing of dispatching station is Δ f=2 4* 15kHz=240kHz.
Among this embodiment, the sample frequency f of dispatching station cBe configured to 2 of WCDMA GSM sample frequency 3.84MHz 3Doubly, i.e. the sample frequency f of dispatching station c=3.84MHz*2 3=30.72MHz.
Based on subcarrier spacing Δ f and sample frequency f cConfiguration, said FFT points N is configured to more than or equal to f c/ Δ f, and N is more than or equal to f cSmallest positive integral in 2 the power power of/Δ f.
Step 602B, dispatching station configuration available subcarrier number;
Preferably, dispatching station adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or each OFDM symbol of semi-static configuration mode configuration;
Step 603B, dispatching station send data or frequency pilot sign on the available subcarrier of configuration.
Embodiment 4
Based on said method embodiment, the present invention also proposes the device of a kind of wireless parameter configuration and signal transmission, and this device comprises:
Configuration module is used to the configuration subcarrier spacing Δ f of dispatching station, sample frequency f c, FFT points N and available subcarrier number;
Sending module is used on the available subcarrier of configuration, sending data or frequency pilot sign;
Said subcarrier spacing Δ f is LTE GSM subcarrier spacing Δ f 1Integral multiple; Said sample frequency f cIntegral multiple for WCDMA GSM sample frequency.
Preferably, said configuration module configures subcarrier spacing Δ f is LTE GSM subcarrier spacing Δ f 12 nDoubly, n is the integer greater than 0;
Preferably, said configuration module configures sample frequency f cBe 2 of WCDMA GSM sample frequency kDoubly, k is the integer greater than 0.
Preferably, said configuration module configures FFT points N is more than or equal to sample frequency f cWith the smallest positive integral in 2 the power power integer doubly of the ratio of subcarrier spacing Δ f.
Preferably, said configuration module adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or each OFDM symbol of semi-static configuration mode configuration.
Because this device embodiment is based on said method embodiment; Therefore functional module that this device comprised or functional unit all are to establish for the steps flow chart among the realization said method embodiment; Its function all can directly derive from the steps flow chart of said method embodiment; Any functional module or performance element that can from said method embodiment, extract or derive all should belong within the protection range of system embodiment of the present invention, for saving space, repeats no more here.
Advantage of the present invention is to application scenarios indoor, that focus covers, through wireless parameters such as reasonable disposition subcarrier spacings, has reduced the realization cost of system; Described wireless parameter disposes and is beneficial to efficient scheduling and reduces overhead, further improves the throughput of system, to satisfy the demand of data business volume.
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 (16)

1. the method for wireless parameter configuration and signal transmission is characterized in that this method comprises:
The configuration subcarrier spacing Δ f of dispatching station, sample frequency f cAnd fast Fourier (FFT) points N, the said configuration subcarrier spacing Δ f of dispatching station is Long Term Evolution (LTE) GSM subcarrier spacing Δ f 1Integral multiple;
Dispatching station configuration available subcarrier number;
Dispatching station sends data or frequency pilot sign on the available subcarrier of configuration.
2. method according to claim 1 is characterized in that, the said configuration sample frequency f of dispatching station cMethod be:
The configuration sample frequency f of dispatching station cIntegral multiple for WCDMA mobile communication system (WCDMA) GSM sample frequency.
3. method according to claim 1 is characterized in that, the said configuration subcarrier spacing Δ f of dispatching station is LTE GSM subcarrier spacing Δ f 1Integral multiple be specially:
The configuration subcarrier spacing Δ f of dispatching station is LTE GSM subcarrier spacing Δ f 12 nDoubly, n is the integer greater than 0.
4. method according to claim 3 is characterized in that, the said configuration subcarrier spacing Δ f of dispatching station is LTE GSM subcarrier spacing Δ f 116 times, Δ f is specially 240 KHzs.
5. method according to claim 2 is characterized in that, the said configuration sample frequency f of dispatching station cFor the integral multiple of WCDMA GSM sample frequency is specially:
The configuration sample frequency f of dispatching station cBe 2 of WCDMA GSM sample frequency kDoubly, k is the integer greater than 0.
6. method according to claim 5 is characterized in that, the said configuration sample frequency f of dispatching station cBe 8 times of WCDMA GSM sample frequency, f cBe specially 30.72 megahertzes.
7. method according to claim 1 is characterized in that, the method for the said configuration FFT of dispatching station points N is:
Dispatching station configuration FFT points N is more than or equal to sample frequency f cPositive integer with the ratio of subcarrier spacing Δ f.
8. method according to claim 7 is characterized in that, the said configuration FFT of dispatching station points N is more than or equal to sample frequency f cBe specially with the positive integer of the ratio of subcarrier spacing Δ f:
Dispatching station configuration FFT points N is more than or equal to sample frequency f cWith the smallest positive integral in 2 the power power integer doubly of the ratio of subcarrier spacing Δ f.
9. method according to claim 1 is characterized in that, the method for said dispatching station configuration available subcarrier number does;
Said dispatching station adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or semi-static configuration mode configuration each OFDM (OFDM) symbol.
10. method according to claim 9 is characterized in that, the method that said dispatching station adopts the fixed configurations mode to dispose available subcarrier number in each OFDM symbol is:
When system bandwidth is 20 megahertzes, the sample frequency f of dispatching station cBe configured to 30.72 megahertzes, when the subcarrier spacing Δ f of dispatching station was configured to 240 KHzs, the FFT points N of said dispatching station was configured to 128, available subcarrier number N UsedBe preferably in 73,75 or 71 any.
11. method according to claim 9 is characterized in that, the method that said dispatching station adopts the dynamic-configuration mode to dispose available subcarrier number in each OFDM symbol is:
Dispatching station adopts the system default configuration in the available subcarrier number that the OFDM of synchronizing channel and/or broadcast channel sends on the symbol;
Dispatching station sends the asynchronous available subcarrier number configuration information that sends on the symbol with broadcast channel OFDM of indication and gives the terminal;
The terminal knows that according to the control information on synchronizing channel and/or the broadcast channel asynchronous and broadcast channel OFDM send the available subcarrier number configuration information on the symbol in the system.
12. method according to claim 9 is characterized in that, said dispatching station adopts the method for available subcarrier number in semi-static each OFDM symbol of configuration mode configuration to be:
Confirm the system default configuration of available subcarrier number in the OFDM symbol;
Dispatching station adopts said system default configuration in the available subcarrier number that the OFDM of synchronizing channel and/or broadcast channel sends on the symbol;
Dispatching station sends available subcarrier configuration indication as required;
If the terminal if receive the available subcarrier configuration indication of dispatching station, then disposes indication based on available subcarrier and confirms that asynchronous available subcarrier number of sending on the symbol with broadcast channel OFDM disposes in the system; If the terminal does not receive the available subcarrier configuration indication of dispatching station, confirm that then asynchronous available subcarrier number of sending on the symbol with broadcast channel OFDM is said system default configuration in the system.
13. the device of wireless parameter configuration and signal transmission is characterized in that this device comprises:
Configuration module is used to the configuration subcarrier spacing Δ f of dispatching station, sample frequency f c, FFT points N and available subcarrier number;
Sending module is used on the available subcarrier of configuration, sending data or frequency pilot sign;
Said subcarrier spacing Δ f is LTE GSM subcarrier spacing Δ f 1Integral multiple; Said sample frequency f cIntegral multiple for WCDMA GSM sample frequency.
14. device according to claim 13 is characterized in that,
Said configuration module configures subcarrier spacing Δ f is LTE GSM subcarrier spacing Δ f 12 nDoubly, n is the integer greater than 0;
Said configuration module configures sample frequency f cBe 2 of WCDMA GSM sample frequency kDoubly, k is the integer greater than 0.
15. according to claim 13 or 14 described devices, it is characterized in that,
Said configuration module configures FFT points N is more than or equal to sample frequency f cWith the smallest positive integral in 2 the power power integer doubly of the ratio of subcarrier spacing Δ f.
16. device according to claim 13 is characterized in that,
Said configuration module adopts available subcarrier number in fixed configurations mode, dynamic-configuration mode or each OFDM symbol of semi-static configuration mode configuration.
CN2011100899042A 2011-04-11 2011-04-11 Method for configuring wireless parameters and transmitting signals and device Pending CN102740375A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2011100899042A CN102740375A (en) 2011-04-11 2011-04-11 Method for configuring wireless parameters and transmitting signals and device
PCT/CN2012/071101 WO2012139433A1 (en) 2011-04-11 2012-02-14 Method and device for configuring wireless parameter and for transmitting signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100899042A CN102740375A (en) 2011-04-11 2011-04-11 Method for configuring wireless parameters and transmitting signals and device

Publications (1)

Publication Number Publication Date
CN102740375A true CN102740375A (en) 2012-10-17

Family

ID=46994958

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100899042A Pending CN102740375A (en) 2011-04-11 2011-04-11 Method for configuring wireless parameters and transmitting signals and device

Country Status (2)

Country Link
CN (1) CN102740375A (en)
WO (1) WO2012139433A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104283663A (en) * 2014-10-24 2015-01-14 国家电网公司 Method for FDD-LTE band narrowing in 230 frequency band and sampling frequency reduction
CN107210905A (en) * 2015-01-26 2017-09-26 华为技术有限公司 System and method for transmitting OFDM (OFDM) frame format
WO2018027705A1 (en) * 2016-08-10 2018-02-15 华为技术有限公司 Signal transmission method, apparatus, and system
WO2018059293A1 (en) * 2016-09-29 2018-04-05 华为技术有限公司 Parameter determination method, base station and user equipment
CN107888356A (en) * 2016-09-30 2018-04-06 华为技术有限公司 The method and apparatus that symbol is set
WO2018076565A1 (en) * 2016-10-31 2018-05-03 宇龙计算机通信科技(深圳)有限公司 Resource allocation method and resource allocation device
CN109565484A (en) * 2016-08-10 2019-04-02 华为技术有限公司 For supporting the common synchronization signal of the new wireless carrier at different sub-carrier interval
CN111490958A (en) * 2015-03-31 2020-08-04 华为技术有限公司 System and method for adaptive frame structure with filtered OFDM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5463297B2 (en) * 2007-11-09 2014-04-09 ゼットティーイー （ユーエスエー） インコーポレイテッド Flexible OFDM / OFDMA frame structure for communication system
CN101867425B (en) * 2010-07-08 2012-10-10 华中科技大学 Available subcarrier detection and synchronization method for discontinuous OFDM dynamic spectrum access
CN101895492A (en) * 2010-08-04 2010-11-24 电子科技大学 Oversampling receiving method of single-carrier wave frequency domain equalization technology

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104283663A (en) * 2014-10-24 2015-01-14 国家电网公司 Method for FDD-LTE band narrowing in 230 frequency band and sampling frequency reduction
US10594457B2 (en) 2015-01-26 2020-03-17 Huawei Technologies Co., Ltd. System and method for communicating an orthogonal frequency division multiplexed (OFDM) frame format
CN107210905A (en) * 2015-01-26 2017-09-26 华为技术有限公司 System and method for transmitting OFDM (OFDM) frame format
US10999033B2 (en) 2015-01-26 2021-05-04 Huawei Technologies Co., Ltd. System and method for communicating an orthogonal frequency division multiplexed (OFDM) frame format
US10965413B2 (en) 2015-01-26 2021-03-30 Huawei Technologies Co., Ltd. System and method for communicating an orthogonal frequency division multiplexed (OFDM) frame format
CN107210905B (en) * 2015-01-26 2020-09-11 华为技术有限公司 Apparatus and method for transmitting Orthogonal Frequency Division Multiplexing (OFDM) frame format
US10708022B2 (en) 2015-01-26 2020-07-07 Huawei Technologies Co., Ltd. System and method for communicating an orthogonal frequency division multiplexed (OFDM) frame format
CN111490958A (en) * 2015-03-31 2020-08-04 华为技术有限公司 System and method for adaptive frame structure with filtered OFDM
CN111490958B (en) * 2015-03-31 2021-04-09 华为技术有限公司 Method for transmitting and receiving signals in a wireless network and communication device
US11632202B2 (en) 2015-03-31 2023-04-18 Huawei Technologies Co., Ltd. System and method for an adaptive frame structure with filtered OFDM
US11621809B2 (en) 2015-03-31 2023-04-04 Huawei Technologies Co., Ltd. System and method for an adaptive frame structure with filtered OFDM
CN109565740A (en) * 2016-08-10 2019-04-02 华为技术有限公司 Method for transmitting signals, device and system
CN109565484A (en) * 2016-08-10 2019-04-02 华为技术有限公司 For supporting the common synchronization signal of the new wireless carrier at different sub-carrier interval
US11057252B2 (en) 2016-08-10 2021-07-06 Huawei Technologies Co., Ltd. Common synchronization signal for sliced OFDM transmission
CN109565740B (en) * 2016-08-10 2020-09-11 华为技术有限公司 Signal transmission method, device and system
CN109565484B (en) * 2016-08-10 2021-02-09 华为技术有限公司 Common synchronization signal for new wireless carriers supporting different subcarrier spacings
WO2018027705A1 (en) * 2016-08-10 2018-02-15 华为技术有限公司 Signal transmission method, apparatus, and system
CN107889236A (en) * 2016-09-29 2018-04-06 华为技术有限公司 Parameter determination method, base station and user equipment
WO2018059293A1 (en) * 2016-09-29 2018-04-05 华为技术有限公司 Parameter determination method, base station and user equipment
US10425907B2 (en) 2016-09-29 2019-09-24 Huawei Technologies Co., Ltd. Parameter determining method, base station, and user equipment
CN107888356B (en) * 2016-09-30 2021-05-07 华为技术有限公司 Method and device for setting symbols
CN107888356A (en) * 2016-09-30 2018-04-06 华为技术有限公司 The method and apparatus that symbol is set
US11108531B2 (en) 2016-09-30 2021-08-31 Huawei Technologies Co., Ltd. Method and apparatus for setting symbol
WO2018076565A1 (en) * 2016-10-31 2018-05-03 宇龙计算机通信科技(深圳)有限公司 Resource allocation method and resource allocation device

Also Published As

Publication number Publication date
WO2012139433A1 (en) 2012-10-18

Similar Documents

Publication Publication Date Title
EP3783960B1 (en) Method for allocating sidelink resource, device, and system
JP6584522B2 (en) Waveform design system and method for extending operating bandwidth
CN102740375A (en) Method for configuring wireless parameters and transmitting signals and device
CN103999398B (en) Telecommunication system and method for machine-type communication
CN104054295B (en) For the telecommunication system and method for machine-type communication
KR100957311B1 (en) Uplink Scheduling Method and Apparatus for Mobile Communication System
US8923192B2 (en) Method for service data transmission, a receiver, a mobile terminal, a transmitter and a base station
CN102685890B (en) The sending method and system of a kind of pilot tone
CN105453476B (en) Telecommunications apparatus and method
CN100566232C (en) The method of supporting changable cover by time division duplex system
CN101841866B (en) Method for application of LTE in Internet of things by improving bandwidth allocation and system
CN102739594A (en) Radio frame parameter configuration and signal transmission method and apparatus thereof
CN109565795A (en) Information transferring method and information transmission equipment
CN110855407B (en) Information transmission method, transmission device, communication device, and readable storage medium
CN102299892A (en) Setting and using method for key parameters in communication system and device
CN101902427B (en) Frame structure and configuration method and communication method thereof
CN104812052A (en) D2D communication synchronization signal transmission method, D2D communication synchronization signal transmission system, sender and receiver
EP2330785A1 (en) A control information transmission method and a receiving terminal
CN103118334A (en) Digital trunked system down data sending method and device based on enhanced multimedia broadcast multicast service (eMBMS)
CN110731113B (en) Data transmission method, device and storage medium
CN101562473B (en) Composite frame based on frequency domain combination, method for establishing connection, and receiving and transmitting device
CN102790736B (en) Methods for transmitting and receiving data and devices for transmitting and receiving data based on orthogonal frequency division multiplexing technology
EP1695502B1 (en) Method and apparatus in a cellular telecommunications system
CN102857463B (en) Method and equipment for transmitting data
CN102281229B (en) The collocation method and device of a kind of conversion interval in communication system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20121017