CN100358252C

CN100358252C - Data rate adjusting device and system thereof

Info

Publication number: CN100358252C
Application number: CNB200410033335XA
Authority: CN
Inventors: 戴绮芃
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2004-04-02
Filing date: 2004-04-02
Publication date: 2007-12-26
Anticipated expiration: 2024-04-02
Also published as: CN1677890A

Abstract

The present invention relates to a device and a wireless communication system thereof, which are used to convert input signals with different data rates into output signals with the same data rate. The device and the system thereof have a plurality of task components, and according to the priority of the task components, the processing priority or execution time can be appropriately configured for the task components, so that the present invention has the ability of real-time processing, thereby shortening the signal processing time.

Description

Data rate adjusting device and system thereof

Technical field

The present invention relates in a wireless communication system device that has translation data speed and can handle in real time.

Background technology

Along with the progress of wireless communication technology, the product that can transmit several different-format signals simultaneously also arises at the historic moment, and for example present mobile phone is signals such as images, sound and data simultaneously.Yet, the signal of different-format has different data rate (data rate) usually, with video-audio signal, picture signal has different transmission rates in different path transmission with voice signal, speed is done output synchronously yet picture signal and voice signal must cooperatively interact, therefore wireless communication system is before transmitting these signals, and the signal that the signal integration that needs a processing unit to be used for having different pieces of information speed becomes to have equivalent data rates is to make things convenient for the transmission of signal.

A time-sharing and multitask system can suitably distribute the period to give each processing module or task component with a predetermined way (equal proportion or inequality proportion) to each processing module or task component in the system, yet the data bulk and the speed of each processing module or the required processing of task component differ, therefore cause the idle data that reach of section processes module or task component in input external blocking easily, make system effectiveness reduce.

U.S. patent application case publication number US 2003/0123406 and US2003/0128674 all mention the method and the device of relevant controlling signal data rate.But further problem is, when uniform data speed was with convenient the transmission, such device or circuit can need the processing time of part, and in the wireless communication system of stressing high-speed computation now, such processing time is very considerable.Therefore in the field of radio communication, need a kind of signal that the signal integration with different pieces of information speed can be become have equivalent data rates, and reduce the device in processing time.

Summary of the invention

The present invention provides a kind of device, is applied in the wireless communication system, in order to one first input signal and one second input signal are handled the device that (real-time processing) becomes one first output signal and one second output signal in real time.Above-mentioned first input signal is to utilize different data rates to be sent to device of the present invention with second input signal, after device of the present invention is handled, make the output signal of winning to utilize identical data rate to send out with second output signal, the present invention also has the ability of real-time processing in addition, can shorten the time of handling.

Device of the present invention comprises a first task assembly, one second task component, one the 3rd task component and one the 4th task component.The first task assembly is in order to cut first input signal and second input signal, to form one first data set and one second data set respectively.Second task component is in order to receive its first data set.The 3rd task component is in order to receive its second data set.The 4th task component is in order to transmitting first data set forming first output signal, and transmits second data set to form second output signal.

Wherein, the first, second, third and the 4th task component can be assigned a first priority (priority), one second priority, one the 3rd priority and one the 4th priority respectively.Device of the present invention can be according to first priority, second priority, the 3rd priority and the 4th priority, the execution priority of decision first task assembly, second task component, the 3rd task component and the 4th task component, reaching the purpose of real-time processing, and make device can effectively bring into play data processing function.

The present invention more provides a kind of can handle a plurality of wireless communication systems of chain signal down in real time, comprises one first device, one second device and one the 3rd device.First device is in order to produce the first above-mentioned input signal and second input signal.Second device comprises above-mentioned device with the first, second, third and the 4th task component.The 3rd device is to receive first output signal and second output signal with communication.This wireless communication system can reach will have the conversion of signals of different pieces of information speed become to have the signal of equivalent data rates and send out, and reduce the purpose of the time of deal with data speed simultaneously.

Description of drawings

Fig. 1 is the calcspar of device of the present invention; And

Fig. 2 is the schematic diagram of wireless communication system of the present invention.

1 device, 3 first devices

5 second devices, 7 the 3rd devices

100 first input signals, 101 first task assemblies

102 second input signals, 103 second task components

104 first data sets 105 the 3rd task component

106 second data sets 107 the 4th task component

108 first output signals, 109 first storage assemblies

110 second output signals, 111 second storage assemblies

113 the 3rd storage assemblies 115 the 4th storage assembly

Embodiment

The signal that device provided by the present invention can utilize the mode of real-time processing will have different pieces of information speed converts the signal with equivalent data rates to when output.The real-time processing of indication herein is the notion of TCM, one specified time interval is distinguished into several sections, carry out with the task component that an ad hoc fashion (equal proportion or inequality proportion) is suitably distributed in the device, make these task components be unlikely to idle too for a long time and elongate the time of handling, or miss received signal and lead to errors generation.

The embodiment of device provided by the present invention installs 1 and comprises a first task assembly 101, one second task component 103, one the 3rd task component 105 and one the 4th task component 107 as shown in Figure 1.The function declaration of each task component is as follows.

First task assembly 101 receives one first input signal 100 and one second input signal 102, and this two input signal is to utilize different data rates to be sent to first task assembly 101.First task assembly 101 is done first input signal 100 and second input signal 102 to cut apart according to a particular data length, to form one first data set 104 and one second data set 106 respectively, promptly comprise many data slots in first data set 104 and second data set 106 with identical data length.It should be noted that above-mentioned particular data length is to decide according to the demand of the system at configuration of device 1 actual hardware and place thereof.In addition, first task assembly 101 can be set at a first priority earlier.

Second task component 103 and the 3rd task component 105 are in order to receive first data set 104 and second data set 106 that is produced by first task assembly 101 respectively.Second task component 103 is set at has one the secondth priority, and the 3rd task component 105 is set at has one the 3rd priority.

The 4th task component 107 is after receiving first data set 104 and second data set 106, in a special time, transmit first data set 104 forming one first output signal 108, and in same special time, transmit second data set 106 to form one second output signal 110.The 4th task component 107 is set at one the 4th priority.It should be noted that this special time is to decide according to the data rate that the system of installing 1 place can accept or expect.

Because the data slot length in first data set 104 and second data set 106 is just identical after first task assembly 101 is handled, send out via above-mentioned identical special time this moment again, can determine that first output signal 108 and second output signal 110 have identical data rate, reach the conversion of signals that to have different pieces of information speed by this and become to have the purpose of the signal of equivalent data rates.

Device 1 is the execution priority that decides first task assembly 101, second task component 103, the 3rd task component 105 and the 4th task component 107 according to first priority, second priority, the 3rd priority and the 4th priority.In this embodiment, first input signal 100 is voice signals, and second input signal 102 is picture signals.Usually, the data rate of picture signal (as 41.2Kbps) can be greater than the data rate (as 12.8Kbps) of voice signal, therefore can make the priority of the 4th priority in the design greater than the priority of the 3rd priority, the priority of the 3rd priority is greater than the priority of second priority, and the priority of second priority is greater than the priority of first priority.Promptly the 4th task component 107 has prepreerence processing sequence or the longest time of implementation, and the 3rd task component 105 takes second place, and second task component 103 takes second place again, and first task assembly 101 then has last processing sequence or the shortest time of implementation.Such arrangement is in order to allow picture signal can have processing sequence or the long time of implementation more preferential than voice signal in device 1, make the bigger picture signal of data volume can be assigned to more processing resource, to reach the synchronous purpose of picture signal and voice signal.

In addition, the configuration of second task component 103 and the 3rd task component 105 (having more preferential processing sequence or long time of implementation than first task assembly 101) has allowed device more than 1 one-level (stage), and then when win data set 104 and second data set 106 are transmitted in device 1, can many chances utilize the configuration of priority " pressures " processing of expedited data, make data set can not be idle for too long because of the processing time of waiting next order four task component 107.Such configuration just can reach the purpose of real-time processing.

As shown in Figure 1, device 1 more comprises one first storage assembly 109, one second storage assembly 111, one the 3rd storage assembly 113 and one the 4th storage assembly 115.First storage assembly 109 is in order to receiving and to store first data set 104 from first task assembly 101, and the signal that waits second task component 103 transmits first data set 104 in the past.Second storage assembly 111 is in order to receiving and to store second data set 106 from first task assembly 101, and the signal that waits the 3rd task component 105 transmits second data set 106 in the past.The 3rd storage assembly 113 is in order to receiving and to store first data set 104 from second task component 103, and the signal that waits the 4th task component 107 transmits first data set 104 in the past.The 4th storage assembly 107 is in order to receiving and to store second data set 106 from the 3rd task component 105, and the signal that waits the 4th task component 107 transmits second data set 106 in the past; The priority of first priority, second priority, the 3rd priority and the 4th priority also can be complied with big or small adjustment of data volume that first storage assembly 109, one second storage assembly 111, one the 3rd storage assembly 113 and one the 4th storage assembly 115 are kept in, for example can reduce the order of first priority or improve second priority and the order of the 3rd priority during greater than a predetermined value when the stored data volume of first storage assembly 109 and one second storage assembly 111, vice versa; And reduce the order of second priority, the 3rd priority or improve the 4th priority greater than a predetermined value cocoa when the 3rd storage assembly 113 and the 4th storage assembly 115 stored data volumes, vice versa.

Said apparatus 1 is to be applied in the wireless communication system, is used for handling down the data rate of chain signal (downlink).And first task assembly 101, second task component 103, the 3rd task component 105 and the 4th task component 107 are task control square (task control block) in this embodiment.First storage assembly 109 and second storage assembly 111 are buffer in this embodiment, and the 3rd storage assembly 113 and the 4th storage assembly 115 are message queue (message queue) in this embodiment.

According to above-mentioned device 1, as shown in Figure 2, the present invention also provides a kind of real-time processing a plurality of wireless communication systems of chain signal down.This wireless communication system comprises one first device, 3,1 second device, 5 and 1 the 3rd device 7.First device 3 is in order to producing the first above-mentioned input signal 100 and second input signal 102, and utilizes wired mode (as the internet) to be sent to second device 5.Second device, 5 devices 1 that comprise in the earlier figures 1, its function and intraware repeat no more.The 3rd device 7 clients (as mobile phone) that are in the wireless communication system are to receive by second device, 5 first output signal that sends out and second output signals with communication.

Because second device, 5 devices 1 that comprise among Fig. 1, therefore wireless communication system provided by the present invention also can reach the conversion of signals that will have different pieces of information speed and becomes to have the signal of equivalent data rates and send out, and reduces the advantage of the time of deal with data speed simultaneously.

Above narration only is explanation spirit of the present invention, should be with this as restriction.Ripe this skill person can do suitable variation under the category that does not surmount claim and contained.

Claims

1. A device for processing a first input signal and a second input signal into a first output signal and a second output signal in real time, the device comprising:

A first task component is used to equally divide the first input signal and the second input signal to form a first data group and a second data group respectively, and the first task component has a first priority;

a second task component for receiving the first data set, the second task component has a second priority;

a third task component for receiving the second data set, the third task component has a third priority; and

a fourth task component for transmitting the first data set to form the first output signal and the second data set to form the second output signal, the fourth task component having a fourth priority;

Wherein, the device determines the first task component, the second task component, the third task component and the fourth task component according to the first priority, the second priority, the third priority and the fourth priority The execution priority of the task component is such that the first output signal has the same rate as the second output signal.

2. The device of claim 1, wherein the first input signal and the second input signal are transmitted to the device using different data rates, and the first output signal and the second output signal are transmitted to the device using the same data rate transmitted by the device.

3. The device of claim 1, wherein the first input signal is an audio signal, and the second input signal is an image signal.

4. The apparatus according to claim 3, wherein the priority of the fourth priority is greater than the priority of the third priority, the priority of the third priority is greater than the priority of the second priority, the The priority of the second priority is higher than the priority of the first priority.

5. The device of claim 1, further comprising:

a first storage component, configured to receive the first data set from the first task component, and transmit the first data set to the second task component;

a second storage component, configured to receive the second data set from the first task component, and transmit the second data set to the third task component;

a third storage component, configured to receive the first data set from the second task component, and transmit the first data set to the fourth task component; and

A fourth storage component is used for receiving the second data set from the third task component, and sending the second data set to the fourth task component.

6. The device according to claim 5, wherein the device is applied in a wireless communication system, the first task component, the second task component, the third task component and the fourth task component are respectively a In the task control block, the first storage component and the second storage component are respectively a buffer, and the third storage component and the fourth storage component are respectively a message queue.

7. The device according to claim 5, when at least one of the first storage component and the second storage component stores more than a predetermined amount of data, selectively lower the order of the first priority and increase the second priority with the order of third priority.

8. The device according to claim 5, when at least one of the third storage component and the fourth storage component stores more than a predetermined value, the order of the second priority and the third priority are selectively lowered and the order of the third priority is increased. The order of fourth priority.

9. A device for real-time processing of a plurality of downlink signals in a wireless communication system, the plurality of downlink signals comprising a first input signal and a second input signal, the first input signal and the second input signal are transmitted to the device using different data rates, and the device includes: a first task component for cutting the first input signal and the second input signal into equal parts to form a first data group and a second data group respectively the data set, the first task component has a first priority;

a first storage component, configured to receive the first data set from the first task component;

a second storage component, configured to receive the second data set from the first task component;

a second task component for receiving the first data set from the first storage component, the second task component has a second priority;

a third task component for receiving the second data set from the second storage component, the third task component has a third priority;

a third storage component, configured to receive the first data set from the second task component;

a fourth storage component, configured to receive the second data set from the third task component; and

A fourth task component, used to receive the first data set from the third storage component and the second data set from the fourth storage component, and transmit the first data set within a same time to form a the first output signal and transmitting the second data group to form a second output signal, so that the first output signal and the second output signal have the same data rate, and the fourth task component has a fourth priority;

Wherein, the device determines the first task component, the second task component, the third task component and the fourth task component according to the first priority, the second priority, the third priority and the fourth priority The execution priority of the task component.

10. The device according to claim 9, wherein the first task component, the second task component, the third task component and the fourth task component are respectively a task control block, the first storage component and the The second storage component is respectively a buffer, and the third storage component and the fourth storage component are respectively a message queue.

11. The device of claim 9, wherein the first input signal is an audio signal, and the second input signal is an image signal.

12. The apparatus according to claim 11, wherein the priority of the fourth priority is greater than the priority of the third priority, the priority of the third priority is greater than the priority of the second priority, the The priority of the second priority is higher than the priority of the first priority.