CN1996793A - The method for controlling the dynamic self-adapted skip of the channel - Google Patents
The method for controlling the dynamic self-adapted skip of the channel Download PDFInfo
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- CN1996793A CN1996793A CNA200610063540XA CN200610063540A CN1996793A CN 1996793 A CN1996793 A CN 1996793A CN A200610063540X A CNA200610063540X A CN A200610063540XA CN 200610063540 A CN200610063540 A CN 200610063540A CN 1996793 A CN1996793 A CN 1996793A
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Abstract
This invention provides one method to make control signal channel in best quality status, which comprises the following steps: firstly testing and evaluating all signal channels quality; then ranking the order from good to bad; then aligning the signal channel with good quality into control channel with remaining to business channels with same process in next circle; if original channel quality difference is taken by signal channel to ensure good signal channel.
Description
Technical field
The present invention relates to the method for channel hopping in the radio communication, particularly a kind of control channel carries out the method for dynamic self-adapting saltus step.
Background technology
In the commercial macrocellular/cellular radio Communication system of prior art, that adopt frequency hopping mainly is second generation radio honeycomb mobile communication system GSM and wireless digital trunked communication system FHMA, they all belong to middle low speed frequency hopping, and wherein: the hop rate of GSM was 217 jumping/seconds; The hop rate of FHMA was 150 jumping/seconds.
In GSM and FHMA wireless communication system, control channel is frequency hopping not all, and the Traffic Channel frequency hopping is only arranged.Here, " control channel " just is meant that the information of this channel is information such as control, management information; Corresponding, " Traffic Channel " is concrete business information such as speech with regard to the information that is meant this channel.
Because the channel quality of control channel is extremely important for the normal operation of entire wireless communication system, therefore the not saltus step of control channel frequency causes control channel can't guarantee to be in the second best in quality channel always in the prior art, make the antijamming capability of control channel be weaker than Traffic Channel, thereby the situation that control channel is seriously disturbed the communication that causes Traffic Channel can't normally carry out at all under extreme case, may occur.
Summary of the invention
For solving the above-mentioned technical problem that prior art exists, the invention provides a kind of method that realizes control channel dynamic self-adapting frequency hopping, change in the past that control channel does not carry out frequency hopping, only has Traffic Channel to carry out the communication mode of frequency hopping, improve communication quality and antijamming capability.This method invention may further comprise the steps:
A, at initial time, all channels of system are distributed into control channel and Traffic Channel on demand randomly;
B, in the following one-period of initial time, the channel quality of all channels among the step a is detected and assesses, according to detecting and the result of assessment carries out sequence arrangement by good to differing from by channel quality with all channels;
C, the channel sequence of arranging according to the method for step b, be defined as control channel with arranging the channel that formerly channel quality is good, be arranged in the relatively poor channel of back channel quality and be defined as Traffic Channel, compare with the control channel that distributes among the step a, in the control channel that this step is determined with step a in the control channel that distributes when different channels is arranged, different channels is replaced, and this is defined as the channel of Traffic Channel and channel that those channels that is assigned as Traffic Channel in step a are defined as control channel is specifically replaced to be about to those channels that are assigned as control channel in step a;
D, in each control channel dynamic self-adapting hop period, detect and assess according to the method for step b channel quality all channels, according to the result who detects and assess all channels are carried out again sequence arrangement by good to difference by channel quality, be defined as control channel with arranging the channel that formerly channel quality is good, be arranged in the relatively poor channel of back channel quality and be defined as Traffic Channel, compare with the control channel that last one-period is determined, if the channel in this control channel of determining is to be defined as Traffic Channel last time a bit, then with them and be confirmed as control channel those last time and this channel that is confirmed as Traffic Channel is replaced.
We know that in wireless mobile communications, the transmission of wireless signal exists multidiameter delay and Doppler frequency shift phenomenon, thereby cause that wireless channel at any time, become everywhere.Therefore, concerning some channels, channel quality is also constantly changing.The present invention will make control channel be adapted to the situation of change of wireless channel in real time, thereby make the channel quality of the control channel in the wireless communication system remain the best.
In order to finish each step of the present invention, the present invention also provides a kind of method and channel replacement method that detects and assess channel quality.
The method that detects and assess channel quality comprises the following steps:
Frame synchronization head or training sequence that a, base station utilize in the frame structure and comprised detect the up channel average error rate, utilize average error rate as the good or poor module of assessment channel quality, and the more little then channel quality of the error rate is good more;
Frame synchronization head or training sequence that b, travelling carriage utilize in the frame structure and comprised detect the down channel average error rate, utilize average error rate as the good or poor tolerance of assessment channel quality, the more little then channel quality of the error rate is good more, simultaneously, mobile radio station send base station down channel quality receiver module by up link with this appreciation information;
The channel quality assessment situation of c, the comprehensive up channel in base station and down channel, when control channel is two-way channel (existing up have again up), each two-way channel is calculated its channel quality with following method, two-way channel (claiming " channel to " again) C
IjBe by a up channel C
iWith a down channel C
jConstitute C
i, C
jChannel quality be respectively Q
i, Q
j, then at selected a certain weight coefficient w
1Condition under, can calculate C by following weighting scheme
IjChannel quality Q
IjValue:
Q
ij＝w
1Q
i+(1-w
1)Q
j，(w
1≥0.5)
Utilize Q
IjThe size of value is weighed the good or poor of channel quality;
D, if control channel be one-way channel (up or descending), then utilize Q
iOr Q
jSize weigh the good or poor of channel quality.
Channel replacement method comprises the following steps:
A, if current replacement channel and be replaced channel and all do not have mobile radio station to use, then directly replacement gets final product;
B, if current replacement channel is used, is replaced channel and is not used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using each relevant mobile radio station of replacing channel, each mobile radio station receives that the back sends confirmation to the base station, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station then, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of each mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment;
C, if current replacement channel is not used, is replaced channel and is used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using each the relevant mobile radio station that is replaced channel, each mobile radio station receives that the back sends confirmation to the base station, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station then, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment;
D, if current replacement channel and be replaced channel and all be used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using replacement channel and each the relevant mobile radio station that is replaced channel, each mobile radio station receives that the back sends confirmation to the base station, then, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment.
The control channel adaptive frequency jump method that the present invention proposes is to be based upon on the basis of real time channel quality assessment, and its hop rate is closely-related at each channel quality constantly with each channel.Compare with the fixed frequency hop rate of Traffic Channel in the commercial macrocellular/cellular radio Communication system of prior art, the hop period that the present invention adopts is unfixed, hop period by the average error rate of channel (
) and frame length (T) and frame structure in the frame synchronization head or the training sequence length (B that are comprised
s) common decision:
By adopting the present invention, control channel can be adapted to the situation of change of wireless channel in real time, thereby makes channel quality the best of control channel, has just guaranteed that also entire wireless communication system can not cause collapse because of the channel quality problem of control channel.
Description of drawings
Fig. 1 base station and mobile radio station schematic diagram.
Fig. 2 replaces the replacement process schematic diagram of certain channel in the control channel channel set.
Base station that relates in Fig. 3 control channel jump method and mobile station functions module diagram.
Among the figure: MS1---MS6: mobile radio station BS: base station
Embodiment
The invention provides the method for a kind of control channel dynamic self-adapting saltus step, may further comprise the steps:
A, at initial time, all channels of system are distributed into control channel and Traffic Channel on demand randomly;
B, in the following one-period of initial time, the channel quality of all channels among the step a is detected and assesses, according to detecting and the result of assessment carries out sequence arrangement by good to differing from by channel quality with all channels;
C, the channel sequence of arranging according to the method for step b, be defined as control channel with arranging the channel that formerly channel quality is good, be arranged in the relatively poor channel of back channel quality and be defined as Traffic Channel, compare with the control channel that distributes among the step a, in the control channel that this step is determined with step a in the control channel that distributes when different channels is arranged, different channels is replaced, and this is defined as the channel of Traffic Channel and channel that those channels that is assigned as Traffic Channel in step a are defined as control channel is specifically replaced to be about to those channels that are assigned as control channel in step a;
D, in each control channel dynamic self-adapting hop period, detect and assess according to the method for step b channel quality all channels, according to the result who detects and assess all channels are carried out again sequence arrangement by good to difference by channel quality, be defined as control channel with arranging the channel that formerly channel quality is good, be arranged in the relatively poor channel of back channel quality and be defined as Traffic Channel, compare with the control channel that last one-period is determined, if the channel in this control channel of determining is to be defined as Traffic Channel last time a bit, then with them and be confirmed as control channel those last time and this channel that is confirmed as Traffic Channel is replaced.
Below in conjunction with the application of description of drawings the present invention in radio communication, Fig. 1 is base station and mobile radio station schematic diagram, and we are that example illustrates the specific embodiment of the present invention with the following parameters.
● equipment constitutes: base station, a plurality of mobile radio station;
● wireless communication system has 50 pairs of channels (wherein: control channel is only used a pair of), according to frequency mode from low to high with channel to number consecutively f
1, f
2.。。、f
50；
● it is 5 * 10 that system works is estimated in 400MHz frequency range, channel average error rate
-2
● system adopts the burst communication mode to work, and does not have frequency selective fading, therefore, does not comprise training sequence in the air frame structure, but has comprised the frame synchronization head, and the frame synchronization head is 32 bits, and frame length is 20ms.
Then base station and mobile radio station are realized each functional module as shown in Figure 3 respectively, the method that proposes in according to the present invention as can be known, the course of work of system is as follows:
1) after the system start-up, the optional a pair of channel in base station is as control channel:
2) after system's operate as normal, the base station is according to the error rate situation of all up channels of error condition real-time statistics of the frame synchronization head of air frame;
3) mobile radio station is according to the error rate situation of the error condition real-time statistics down channel of the frame synchronization head of air frame, and this error code values is sent to the base station by up channel;
4) channel quality ordering will be carried out (if there are a plurality of mobile radio stations to report the error rate situation of a certain identical down channel according to the error rate situation of each channel at set intervals in the base station, then the average error rate of statistical average as this down channel will be carried out to these error rates in the base station), the channel of finding out current time the best is right, then relatively this channel to whether with the channel of the current control channel that is using to consistent, if it is inconsistent, then replace agreement according to channel, right with the optimum channel that calculates to replacing the current channel that is using of control channel, thus realized the dynamic self-adapting frequency hopping of control channel.
Fig. 2 has described the replacement process of replacing certain channel in the control channel channel set.
This replacement process is described below:
A, if current replacement channel and be replaced channel and all do not have mobile radio station to use, then directly replacement gets final product;
B, if current replacement channel is used, is replaced channel and is not used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using each relevant mobile radio station of replacing channel, each mobile radio station receives that the back sends confirmation to the base station, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station then, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of each mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment;
C, if current replacement channel is not used, is replaced channel and is used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using each the relevant mobile radio station that is replaced channel, each mobile radio station receives that the back sends confirmation to the base station, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station then, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment;
D, if current replacement channel and be replaced channel and all be used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using replacement channel and each the relevant mobile radio station that is replaced channel, each mobile radio station receives that the back sends confirmation to the base station, then, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment.
Have only a plurality of mobile radio stations in base station in the present embodiment and have only a Common Control Channel.For the communication system of a practicality, usually be provided with a plurality of base stations, a plurality of control channel, at this moment the channel that can distribute some in each base station then, is controlled the employed frequency of control channel by top method as control channel.
By in real time each wireless channel being carried out detection assessment and the channel replacing of channel quality, control channel is just always in shape, compare with the changeless prior art of control channel, have following benefit:
A, control channel use in all channels of wireless communication system channel quality best always Channel, and in the prior art, control channel might use the channel of bad channel quality, thereby Avoided causing owing to control channel is of poor quality the communication of Traffic Channel normally to carry out The generation of situation.
The dynamic self-adapting frequency hopping of b, control channel has frequency diversity and interference diversity effect Really, thereby greatly strengthened the antijamming capability of control channel, this is at the abominable ring of electromagnetic interference Has positive effect in the border.
Claims (4)
1, a kind of method that realizes the saltus step of control channel dynamic self-adapting, it is characterized in that: this method may further comprise the steps:
A, at initial time, all channels of system are distributed into control channel and Traffic Channel on demand randomly;
B, in the following one-period of initial time, the channel quality of all channels among the step a is detected and assesses, according to detecting and the result of assessment carries out sequence arrangement by good to differing from by channel quality with all channels;
C, the channel sequence of arranging according to the method for step b, be defined as control channel with arranging the channel that formerly channel quality is good, be arranged in the relatively poor channel of back channel quality and be defined as Traffic Channel, compare with the control channel that distributes among the step a, in the control channel that this step is determined with step a in the control channel that distributes when different channels is arranged, different channels is replaced, and this is defined as the channel of Traffic Channel and channel that those channels that is assigned as Traffic Channel in step a are defined as control channel is specifically replaced to be about to those channels that are assigned as control channel in step a;
D, in each control channel dynamic self-adapting hop period, detect and assess according to the method for step b channel quality all channels, according to the result who detects and assess all channels are carried out again sequence arrangement by good to difference by channel quality, be defined as control channel with arranging the channel that formerly channel quality is good, be arranged in the relatively poor channel of back channel quality and be defined as Traffic Channel, compare with the control channel that last one-period is determined, if the channel in this control channel of determining is to be defined as Traffic Channel last time a bit, then with them and be confirmed as control channel those last time and this channel that is confirmed as Traffic Channel is replaced.
2, a kind of method that realizes the saltus step of control channel dynamic self-adapting according to claim 1 is characterized in that: channel quality described in this method is to detect through the following steps and assess and determine:
Frame synchronization head or training sequence that a, base station utilize in the frame structure and comprised detect the up channel average error rate, utilize average error rate as the good or poor module of assessment channel quality, and the more little then channel quality of the error rate is good more;
Frame synchronization head or training sequence that b, travelling carriage utilize in the frame structure and comprised detect the down channel average error rate, utilize average error rate as the good or poor tolerance of assessment channel quality, the more little then channel quality of the error rate is good more, simultaneously, mobile radio station send base station down channel quality receiver module by up link with this appreciation information;
The channel quality assessment situation of c, the comprehensive up channel in base station and down channel, when control channel is two-way channel (existing up have again up), each two-way channel is calculated its channel quality with following method, two-way channel (claiming " channel to " again) C
IjBe by a up channel C
iWith a down channel C
jConstitute C
i, C
jChannel quality be respectively Q
i, Q
j, then at selected a certain weight coefficient w
1Condition under, can calculate C by following weighting scheme
IjChannel quality Q
IjValue:
Q
ij＝w
1Q
i+(1-w
1)Q
j，(w
1≥0.5)
Utilize Q
IjThe size of value is weighed the good or poor of channel quality;
D, if control channel be one-way channel (up or descending), then utilize Q
iOr Q
jSize weigh the good or poor of channel quality.
3, a kind of method that realizes the saltus step of control channel dynamic self-adapting according to claim 1 is characterized in that described Traffic Channel of this method and control channel carry out corresponding replacement and follow these steps to carry out:
A, if current replacement channel and be replaced channel and all do not have mobile radio station to use, then directly replacement gets final product;
B, if current replacement channel is used, is replaced channel and is not used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using each relevant mobile radio station of replacing channel, each mobile radio station receives that the back sends confirmation to the base station, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station then, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of each mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment;
C, if current replacement channel is not used, is replaced channel and is used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using each the relevant mobile radio station that is replaced channel, each mobile radio station receives that the back sends confirmation to the base station, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station then, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment;
D, if current replacement channel and be replaced channel and all be used, then undertaken by following communication protocol: the base station sends by clean culture or multicast mode and replaces channel information to using replacement channel and each the relevant mobile radio station that is replaced channel, each mobile radio station receives that the back sends confirmation to the base station, then, replace constantly by sending the relevant mobile radio station of multicase control information notice the base station, and it is inferior that this information sends R (R 〉=3) continuously; Simultaneously, the replacement moment of a maximum of mobile radio station setting, if before the replacement of this maximum arrives constantly, do not receive the replacement moment that the base station sends, automatic replacement channel when then the maximum of setting in arrival this locality is replaced the moment.
4, a kind of method that realizes the saltus step of control channel dynamic self-adapting according to claim 1 is characterized in that described control channel dynamic self-adapting hop period is by frame synchronization head that is comprised in the average error rate of channel and frame length and the frame structure or the decision of training sequence length.
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| CNB200610063540XA CN100521585C (en) | 2006-11-09 | 2006-11-09 | Method for controlling the dynamic self-adapted skip of the channel |
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|---|---|---|---|
| CNB200610063540XA CN100521585C (en) | 2006-11-09 | 2006-11-09 | Method for controlling the dynamic self-adapted skip of the channel |
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| CN1996793A true CN1996793A (en) | 2007-07-11 |
| CN100521585C CN100521585C (en) | 2009-07-29 |
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| CN101753254A (en) * | 2008-12-16 | 2010-06-23 | 四零四科技股份有限公司 | Delivery system, device and method thereof for preventing data loss |
| CN102106178A (en) * | 2008-07-31 | 2011-06-22 | 摩托罗拉*** | Method and apparatus for interference reduction in wireless communication systems |
| US9025556B2 (en) | 2009-11-06 | 2015-05-05 | Google Technology Holdings LLC | Interference mitigation in heterogeneous wireless communication networks |
| CN105338641A (en) * | 2015-10-21 | 2016-02-17 | 上海华为技术有限公司 | Information sending and receiving method, and related apparatus |
| CN106937346A (en) * | 2015-12-30 | 2017-07-07 | 哈尔滨海能达科技有限公司 | PDT control channel machines shift process, base station and base station controller |
| CN109547119A (en) * | 2018-12-15 | 2019-03-29 | 华南理工大学 | Anti-interference information transferring method based on non-audible audio private communication channel |
| CN109889230A (en) * | 2019-04-03 | 2019-06-14 | 成都中科微信息技术研究院有限公司 | A kind of anti-interference frequency-hopping method of electric power wireless private network |
| CN111092672A (en) * | 2018-10-24 | 2020-05-01 | 成都鼎桥通信技术有限公司 | Channel selection method and device |
| CN113179141A (en) * | 2021-04-25 | 2021-07-27 | 赵天铭 | Self-adaptive channel selection algorithm for network scheduling |
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| CN102106178A (en) * | 2008-07-31 | 2011-06-22 | 摩托罗拉*** | Method and apparatus for interference reduction in wireless communication systems |
| CN102106178B (en) * | 2008-07-31 | 2014-09-17 | 摩托罗拉*** | Method and apparatus for interference reduction in wireless communication systems |
| US9370021B2 (en) | 2008-07-31 | 2016-06-14 | Google Technology Holdings LLC | Interference reduction for terminals operating on neighboring bands in wireless communication systems |
| CN101753254A (en) * | 2008-12-16 | 2010-06-23 | 四零四科技股份有限公司 | Delivery system, device and method thereof for preventing data loss |
| US9025556B2 (en) | 2009-11-06 | 2015-05-05 | Google Technology Holdings LLC | Interference mitigation in heterogeneous wireless communication networks |
| CN105338641B (en) * | 2015-10-21 | 2019-02-19 | 上海华为技术有限公司 | A kind of information sending, receiving method and relevant apparatus |
| CN105338641A (en) * | 2015-10-21 | 2016-02-17 | 上海华为技术有限公司 | Information sending and receiving method, and related apparatus |
| CN106937346A (en) * | 2015-12-30 | 2017-07-07 | 哈尔滨海能达科技有限公司 | PDT control channel machines shift process, base station and base station controller |
| CN111092672A (en) * | 2018-10-24 | 2020-05-01 | 成都鼎桥通信技术有限公司 | Channel selection method and device |
| CN111092672B (en) * | 2018-10-24 | 2022-04-29 | 成都鼎桥通信技术有限公司 | Channel selection method and device |
| CN109547119A (en) * | 2018-12-15 | 2019-03-29 | 华南理工大学 | Anti-interference information transferring method based on non-audible audio private communication channel |
| CN109889230A (en) * | 2019-04-03 | 2019-06-14 | 成都中科微信息技术研究院有限公司 | A kind of anti-interference frequency-hopping method of electric power wireless private network |
| CN109889230B (en) * | 2019-04-03 | 2020-10-27 | 成都中科微信息技术研究院有限公司 | Anti-interference frequency hopping method of power wireless private network |
| CN113179141A (en) * | 2021-04-25 | 2021-07-27 | 赵天铭 | Self-adaptive channel selection algorithm for network scheduling |
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| C56 | Change in the name or address of the patentee |
Owner name: XIETONG COMMUNICATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SYNERGY SMARTEND COMMUNICATION TECHNOLOGY (SHENZHEN) CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 518023, Qingshui River street, Luohu District, Qingshui River, Guangdong, a northbound Teng state building, 3 floor A District, 5-11 floor A District, B building, 2 floor A District, 4 A District, district Patentee after: SYNERTONE COMMUNICATION COPORATION Address before: 3 Building 2, 1028 Buji Road, Luohu District, Guangdong, Shenzhen, 518019 Patentee before: Synergy Smartend Communication Technology (Shenzhen) Co., Ltd. |