CN1627658A - Method for transmitting burst data in intermittence for transferring wireless signal in wireless communication system - Google Patents
Method for transmitting burst data in intermittence for transferring wireless signal in wireless communication system Download PDFInfo
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- CN1627658A CN1627658A CN 200310118520 CN200310118520A CN1627658A CN 1627658 A CN1627658 A CN 1627658A CN 200310118520 CN200310118520 CN 200310118520 CN 200310118520 A CN200310118520 A CN 200310118520A CN 1627658 A CN1627658 A CN 1627658A
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Abstract
In the method, burst data includes training sequence part and data part. When measurement is only needed to carry out, closing down function of transmitting data part, wireless transmitter sends out the said training sequence part; when power control and synchronous control of wireless communication chain is needed to retain, closing down function of transmitting data part in burst data except control symbols in physical layer, wireless transmitter sends out the training sequence part and control symbols in physical layer in burst data. The disclosed method reduces transmitting time of wireless transmitter in transferring intermittence, lowers interference level in wireless communication chain, and increases capacity of wireless communication system.
Description
(1) technical field
The present invention relates to the launching technique in a kind of wireless communication system, more particularly, the method that relates to emission data burst when wireless signal transmits intermittently in a kind of wireless communication system, use the method among the present invention, can further reduce the interference level in the wireless communication link, increase the capacity of wireless communication system.
(2) background technology
In wireless communication system, if in a period of time of wireless signal transport process, there is not informational needs to transmit in the wireless communication link, the then above-mentioned transmission that is called wireless signal during this period of time is intermittently.When the transmission that is in wireless signal intermittently the time, in the standard of existing different wireless communication system, stipulated the launching technique of different data bursts (Burst), the structure of this data burst as shown in Figure 1, it comprises training sequence part (Midamble part) and data division (Data Part).
Such as insert at the CCSA Time Division-Synchronous Code Division Multiple Access in the mobile system (CCSA TSM) (
Www.ccsa.org.cn), in a period of time, in main Common Control Physical Channel (P-CCPCH), there is not informational needs to transmit, the transmission that promptly is in main Common Control Physical Channel is during intermittence, transmitting set sends data burst, transmits a string predefined bit sequence in its data division.
Again such as plan the 3G (Third Generation) Moblie partner in low spreading rate (3GPP LCR) system (referring to
Www.3gpp.org), if after rate adapted (Rate Matching), there is not informational needs to transmit in the inherent DPCH of a period of time (DPCH), the transmission that promptly is in DPCH is during intermittence, transmitting set carries out discontinuous emission (Discontinuous Transmission), only in transmitting first frame intermittently, launch a kind of special data burst (Special Burst), and close its emission function in all the other times intermittently of transmitting.Described special data burst comprises two data parts before and after training sequence part and the training sequence.When need be when the transmission of wireless signal keeps closed power control (Close Loop Power Control), Synchronization Control (Synchronization Control) to wireless communication link intermittently the time, in described data division, transmit the physical (L1) control character, as power control character, Synchronization Control symbol etc., wireless receiver (Radio Receiver) receives above-mentioned special data burst and extracts and carry out power control, Synchronization Control instruction.Two data parts in the above-mentioned special data burst outside the physical layer control character of removing as required to be transmitted, no longer carry effective information, and the content of transmission is some bits of predefined or any filling.Aforesaid special data burst structure also as shown in Figure 1.
Insert in the mobile system (CCSA TSM) at the CCSA Time Division-Synchronous Code Division Multiple Access for another example (referring to
Www.ccsa.org.cn), when the conversation that is in voice service intermittently the time, transmitting set will be with certain specific rule, the slow associated control channel (C-SACCH) of emission compact model in above-mentioned transmission intermittently, described slow associated control channel also is a special data burst, promptly comprise two data parts of training sequence part and training sequence front and back, the physical layer control character transmits in described data division as mentioned above as required.Two data parts in the above-mentioned special data burst outside the physical layer control character of removing as required to be transmitted, no longer carry effective information, and the content of transmission is some bits of predefined or any filling.Aforesaid special data burst structure also as shown in Figure 1.
In existing wireless communication system, discontinuous emission is a very important technology, it referred in certain period that wireless signal transmits, if there is not informational needs to transmit in the wireless communication link, or being called the transmission intermittently when (Transmission Pause) that is in wireless signal, transmitting set (Radio Transmitter) will temporarily be closed its emission function.Such as in voice service, there is a large amount of silence periods in talk in communicating pair, i.e. conversation intermittently, these conversations intermittently reach more than 50% of whole air times, not only taken a large amount of Radio Resources, and increased phase mutual interference between the user, use discontinuous lift-off technology this moment, when conversing intermittently, close the emission function of transmitting set, owing to reduced the launch time of transmitting set when transmitting intermittently, thereby reduced the interference level in the wireless communication link, thus the capacity of wireless communication system can be increased, and prolong the battery service time of subscriber station (UE).
Although discontinuous lift-off technology has above-mentioned effect, but, when in discontinuous emission, using above-mentioned partial data burst, two data parts in the above-mentioned partial data burst, outside the physical layer control character of removing as required to be transmitted, no longer carry effective information, the content that transmits is some bits of predefined or any filling, these bits predefined or any filling are controlled for the power that keeps wireless communication link, Synchronization Control or to satisfy Testing requirement be not to be essential, the bit of these non-essential any fillings has still taken the part Radio Resource, and may produce mutual interference.
(3) summary of the invention
The method that the purpose of this invention is to provide emission data burst when wireless signal transmits intermittently in a kind of wireless communication system, than existing launching technique, can further reduce the launch time of transmitting set when transmitting intermittently, reduce the interference level in the wireless communication link, increase the capacity of wireless communication system.
Above-mentioned goal of the invention is realized by following method of the present invention: it comprises: at the transmission intermittence of wireless signal, transmitting set sends at least one data burst in above-mentioned transmission intermittently, comprise training sequence part and data division in the described data burst, it is characterized in that: above-mentioned transmitting set sends the training sequence part of described data burst, and closes the transmission of the data division of described data burst at least in part.
An aspect according to the inventive method, when power control, the Synchronization Control that need in the transmission of wireless signal intermittently, keep to wireless communication link, transmitting set is closed the emission function that its data burst in described transmission is intermittently removed the data division outside the physical layer control character, only sends the training sequence part and the physical layer control character of described data burst.
Another aspect according to the inventive method, when the measurement that only needs to keep to wireless communication link, and need not keep power control and Synchronization Control the time, above-mentioned transmitting set is closed the emission of the data division of described data burst, only sends the training sequence part in the described data burst.
According to another aspect of the inventive method, described physical layer control character is simultaneous bias (Synchron-ization Shift) symbol and power control (Power Control) symbol.Described physical layer control character is positioned at before the above-mentioned training sequence part or afterwards.
According to a further aspect of the invention, it is characterized in that described wireless communication system is 3GPP LCR or CCSATSM system.
By improving the structure of above-mentioned partial data burst, and take into account power control, Synchronization Control or Testing requirement, can further reduce the launch time of transmitting set when transmitting intermittently, reduce the interference level in the wireless communication link, increase the capacity of wireless communication system.
(4) description of drawings
For a better understanding of the present invention, introduce some embodiments of the present invention and advantage thereof below in conjunction with accompanying drawing, these descriptions are not restrictive.
Fig. 1 is illustrated in the structure of a complete data burst of available technology adopting.
Fig. 2 represents an embodiment according to the inventive method, the data burst structure of emission when transmitting set transmits intermittently at wireless signal, and data division is closed and transmitting training sequence part only.
Fig. 3 represents according to another embodiment of the invention, and the data burst structure of using during the discontinuous emission of transmitting set has only the physical layer control character in training sequence and the data division to be launched.
(5) specific implementation method
An embodiment according to the inventive method, in a TSM system, in a period of time, when in main Common Control Physical Channel (P-CCPCH), not having informational needs to transmit, some columns of the confidential emission of wireless transmission are according to burst, in order to reduce the transmitting time of transmitting set when main Common Control Physical Channel signal transmits intermittently, and satisfy the channel delivery quality of subscriber station simultaneously to main Common Control Physical Channel, the measurement requirement of channel received power etc., transmitting set is closed the emission function of main Common Control Physical Channel in the total data part of described data burst, only send the training sequence part of described data burst, the structure of the data burst of being launched as shown in Figure 2.
According to another embodiment of the invention, in voice service, there is a large amount of silence periods in talk in communicating pair, i.e. conversation intermittently, these conversations intermittently reach more than 50% of whole air times, have not only taken a large amount of Radio Resources, and have increased the phase mutual interference between the user.Thereby when being in conversation during intermittence, the transmitting set of base station and subscriber station carries out discontinuous emission.For normally carrying out of guaranteeing to converse, when transmitting set carries out discontinuous emission, need to keep power to control and Synchronization Control to employed wireless communication link in the conversation, in CCSA TSM system, transmitting set will be according to predetermined rule, slow associated control channel (C-SACCH) in conversation intermittent transmission compressed format, the slow associated control channel of described compact model is a data burst, described data burst comprises two data parts before and after training sequence part and the training sequence, and described data division comprises power control character and simultaneous bias symbol and more any bits of filling.The method according to this invention, in order further to reduce the launch time of transmitting set when transmitting intermittently, transmitting set is closed its emission function of removing the data division outside power control character and the simultaneous bias symbol in the data burst described in transmitting intermittently, only send the training sequence part of described data burst and power control character in the data division and simultaneous bias symbol, the structure of the data burst of emission this moment as shown in Figure 3.
The structure of LCR system data burst of emission when discontinuous emission is made up of training sequence part and data division equally, as shown in Figure 1.Be understood that easily the improved data burst structure in the inventive method can be used for the discontinuous emission of LCR system equally.In another embodiment of the inventive method, in the time need in the transmission of wireless signal intermittently, keeping to the power control of wireless communication link or Synchronization Control, transmitting set is closed the emission function that its data burst in described transmission is intermittently removed the data division outside the physical layer control character, only send the training sequence part and the physical layer control character of described data burst, as shown in Figure 3.And when only needing the measurement of maintenance to wireless communication link, and need not keep power control and Synchronization Control the time, above-mentioned transmitting set is closed the emission of the data division of whole described data bursts, only sends the training sequence part (see figure 2) in the described data burst.
In the above-described embodiment, since in the data burst at least the emission of partial data part also be closed, further reduce the launch time of transmitting set when transmitting intermittently, reduced the interference level in the wireless communication link, increased the capacity of wireless communication system.
Claims (6)
1. the method for emission data burst when wireless signal transmits intermittently in the wireless communication system, comprise: at the transmission intermittence of wireless signal, transmitting set sends at least one data burst in above-mentioned transmission intermittently, comprise training sequence part and data division in the described data burst, it is characterized in that: above-mentioned transmitting set sends the training sequence part of described data burst, and closes the transmission of the data division of described data burst at least in part.
2. the method for emission data burst when information transmits intermittently in a kind of wireless communication system according to claim 1, it is characterized in that: when needs maintenance only during the measurement of wireless communication link, above-mentioned transmitting set is closed the emission of the data division of described data burst, only sends the training sequence part in the described data burst.
3. the method for emission data burst when information transmits intermittently in a kind of wireless communication system according to claim 1, it is characterized in that: when needs kept the power control of wireless communication link and/or Synchronization Control, above-mentioned transmitting set only sent training sequence part in the described data burst and the physical layer control character in the data division.
4. the method for emission data burst when information transmits intermittently in a kind of wireless communication system as claimed in claim 3, it is characterized in that: described physical layer control character is simultaneous bias symbol and/or power control character.
5. the method for emission data burst when information transmits intermittently in a kind of wireless communication system as claimed in claim 3 is characterized in that: described physical layer control character is positioned at before the above-mentioned training sequence part or afterwards.
6. the method for emission data burst when transmitting intermittently as information in the described a kind of wireless communication system of one of claim 1 to 5, it is characterized in that: described wireless communication system is 3GPP LCR or CCSA TSM system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310118520 CN1627658A (en) | 2003-12-12 | 2003-12-12 | Method for transmitting burst data in intermittence for transferring wireless signal in wireless communication system |
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| CN 200310118520 CN1627658A (en) | 2003-12-12 | 2003-12-12 | Method for transmitting burst data in intermittence for transferring wireless signal in wireless communication system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101611649A (en) * | 2006-12-21 | 2009-12-23 | 索尼爱立信移动通讯股份有限公司 | Be used for the network control of the uplink transmit timing of compact model |
| US8503403B2 (en) | 2006-12-21 | 2013-08-06 | Sony Corporation | Network control of uplink transmit timing for compressed mode |
| CN109364455A (en) * | 2018-11-30 | 2019-02-22 | 苏州东巍网络科技有限公司 | A kind of interval training secure remote control system and method based on Internet of Things |
| CN111181666A (en) * | 2018-11-12 | 2020-05-19 | 大唐移动通信设备有限公司 | Time frequency adjusting method and device |
-
2003
- 2003-12-12 CN CN 200310118520 patent/CN1627658A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101611649A (en) * | 2006-12-21 | 2009-12-23 | 索尼爱立信移动通讯股份有限公司 | Be used for the network control of the uplink transmit timing of compact model |
| US8503403B2 (en) | 2006-12-21 | 2013-08-06 | Sony Corporation | Network control of uplink transmit timing for compressed mode |
| CN111181666A (en) * | 2018-11-12 | 2020-05-19 | 大唐移动通信设备有限公司 | Time frequency adjusting method and device |
| CN111181666B (en) * | 2018-11-12 | 2021-03-12 | 大唐移动通信设备有限公司 | Time frequency adjusting method and device |
| CN109364455A (en) * | 2018-11-30 | 2019-02-22 | 苏州东巍网络科技有限公司 | A kind of interval training secure remote control system and method based on Internet of Things |
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