CN104969483A - Receiving device, sending device, training sequence matching method, and system - Google Patents

Abstract

Embodiments of the present invention relates to the field of wireless communications. Provided are a receiving device, a sending device, a training sequence matching method, and a system. The receiving device comprises: a receiving module, used for receiving a burst pulse sent by at least one sending device; an extracting module, used for extracting a to-be-matched sequence from the burst pulse received by the receiving module; a first obtaining module, used for obtaining a general training sequence and an extra training sequence; and a matching module, used for matching the to-be-matched sequence extracted by the extracting module and the training sequences obtained by the first obtaining module. By obtaining a general training sequence and an extra training sequence and matching a to-be-matched sequence extracted from the burst pulse with the obtained training sequences, the present invention solves the problem that the general training sequence cannot meet the demand of a system capacity when the number of sending devices and receiving devices in a system is excessively great, thereby achieving the objective of improving the system performance.

Description

RECEIVING DEVICE, SENDING DEVICE, TRAINING SEQUENCE MATCHING METHOD, AND SYSTEM

Receiving device, transmission equipment, training sequence matching process and systems technology field

The present invention relates to wireless communication field, more particularly to a kind of receiving device, transmission equipment, training sequence matching process and system.Background technology

Training sequence is a string of known arrays, for producing channel model for balanced device.In a wireless communication system, receiving device is matched from the sequence of the extracting data predetermined figure received and with known training sequence, to determine to send the training sequence selected by equipment.

In existing training sequence matching process, send equipment and receiving device knows N group training sequences altogether.Precalculated position of the one group of addition in the known N group training sequences of equipment selection in data to be sent is sent, and the data added after training sequence are sent to receiving device.Receiving device is received after the data, sequence to be matched is extracted from precalculated position, and the sequence to be matched extracted and the known N groups training sequence are subjected to correlation or signal to noise ratio matching, determined to send which group training sequence of the equipment addition in the data is specially according to matching result, and subsequent operation is carried out according to matching result, such as, different transmission equipment are distinguished according to matching result.

During the present invention is realized, inventor has found that prior art at least has problems with：In existing training sequence matching process, sending equipment can only be from one group in known N group training sequences, receiving device also can only be matched the sequence to be matched extracted with known N groups training sequence, when the transmission equipment and excessive receiving device quantity in system, known N groups training sequence can not meet the demand of power system capacity, and systematic function is relatively low.The content of the invention

In order to solve in the prior art when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, the embodiments of the invention provide a kind of receiving device, sends equipment, training sequence matching process and system.The technical scheme is as follows：

First aspect includes there is provided a kind of receiving device, the receiving device：

Receiving module, the burst that equipment is sent is sent for receiving at least one； Extraction module, for extracting sequence to be matched in the burst that is received from the receiving module；First acquisition module, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Matching module, the conventional training sequence and the extra training sequence that sequence to be matched and first acquisition module for the extraction module to be extracted are got is matched.

In the first possible implementation of first aspect, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

With reference to the first possible implementation of first aspect or first aspect, in second of possible implementation of first aspect,

The receiving module, the Stochastic accessing burst that equipment and the second transmission equipment are sent respectively in same time slot is sent for receiving first；

Wherein, at least one described transmission equipment includes the described first transmission equipment and the second transmission equipment, and the burst is Stochastic accessing burst.

With reference to second of possible implementation of first aspect, in the third possible implementation of first aspect, first acquisition module, including：

First acquisition unit, for obtaining the conventional training sequence and the extra training sequence that prestore；

Second acquisition unit, for obtaining the conventional training sequence prestored；

First circulation unit, for being the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

Second aspect includes there is provided a kind of receiving device, the receiving device：Receiver and processor；The receiver, the burst that equipment is sent is sent for receiving at least one；

The processor, for extracting sequence to be matched in the burst that is received from the receiver；The processor, for obtaining multigroup training sequence, multigroup training sequence includes conventional training Sequence and extra training sequence, the extra training sequence are the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

The processor, is additionally operable to be matched the sequence to be matched with the conventional training sequence and the extra training sequence.

In the first possible implementation of second aspect, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

With reference to the first possible implementation of second aspect or second aspect, in the third possible implementation of second aspect,

The receiver, the Stochastic accessing burst that equipment and the second transmission equipment are sent respectively in same time slot is sent for receiving first；

Wherein, at least one described transmission equipment includes the described first transmission equipment and the second transmission equipment, and the burst is Stochastic accessing burst.

With reference to second of possible implementation of second aspect, in the third possible implementation of second aspect, the receiving device also includes：Memory；The extra training sequence；The processor, is additionally operable to the conventional training sequence cyclic shift predetermined figure that will be prestored, and is the extra training sequence by the retrieval after cyclic shift.

The third aspect sends equipment there is provided one kind, it is characterised in that the transmission equipment includes：Second acquisition module, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Selecting module, for selecting one group of training sequence from multigroup training sequence that second acquisition module is got； Add module, the training sequence for the selecting module to be selected is added in burst to be sent；Receiving unit, sequence to be matched is extracted by the receiving device from the burst, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

In the first possible implementation of the third aspect, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1

0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

With reference to the first possible implementation of the third aspect or the third aspect, in second of possible implementation of the third aspect, the selecting module, including：

First choice unit, for when the burst for first access when Stochastic accessing burst when, one group of training sequence is randomly choosed from multigroup training sequence；

Second selecting unit, for when the burst for first access when Stochastic accessing burst when, preassigned one group of training sequence is selected from multigroup training sequence；

3rd selecting unit, during for Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when one group is selected from multigroup training sequence with last access.

With reference to second of possible implementation of the third aspect, in the third possible implementation of the third aspect, second acquisition module, including：

3rd acquiring unit, for obtaining the conventional training sequence and the extra training sequence that prestore；

4th acquiring unit, for obtaining the conventional training sequence prestored；

Second circulation unit, for being the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

Fourth aspect sends equipment there is provided one kind, and the transmission equipment includes：Processor and emitter；The processor, for obtaining multigroup training sequence, multigroup training sequence includes conventional training Sequence and extra training sequence, the extra training sequence are the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

The processor, for selecting one group of training sequence from the multigroup training sequence got；The processor, for the training sequence selected to be added in burst to be sent；The processor, receiving device is sent to for controlling the emitter by the burst added with the training sequence selected, sequence to be matched is extracted from the burst by the receiving device, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

In the first possible implementation of fourth aspect, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,

0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

With reference to the first possible implementation of fourth aspect or fourth aspect, in second of possible implementation of fourth aspect,

The processor, for when the burst for first access when Stochastic accessing burst when, one group of training sequence is randomly choosed from multigroup training sequence；Or, preassigned one group of training sequence is selected from multigroup training sequence；

The processor, during for Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when one group is selected from multigroup training sequence with last access.

With reference to second of possible implementation of fourth aspect, in the third possible implementation of fourth aspect, the transmission equipment also includes：Memory；The extra training sequence；The processor, is additionally operable to the conventional training sequence cyclic shift predetermined figure that will be prestored, and is the extra training sequence by the retrieval after cyclic shift. 5th aspect is there is provided a kind of training sequence matching process, and methods described includes：

Receive at least one and send the burst that equipment is sent, sequence to be matched is extracted from the burst；

Obtain multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, the extra training sequence be the sequence that cyclic shift acquisition is carried out to the conventional training sequence it is bad ' J;

The sequence to be matched is matched with the conventional training sequence and the extra training sequence got.

In the first possible implementation of the 5th aspect, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,

0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

With reference to the 5th aspect or the first possible implementation of the 5th aspect, in second of possible implementation of the 5th aspect, at least one described transmission equipment includes first and sends equipment and the second transmission equipment, and the burst is Stochastic accessing burst；

Described burst for receiving at least one transmission equipment transmission, including：

Receive the Stochastic accessing burst that the first transmission equipment and the second transmission equipment are sent respectively in same time slot.

With reference to second of possible implementation of the 5th aspect, in the third possible implementation of the 5th aspect, the multigroup training sequence of acquisition, including：

Obtain the conventional training sequence and the extra training sequence prestored；

Or,

Obtain the conventional training sequence prestored；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

6th aspect is there is provided a kind of training sequence matching process, and methods described includes：

Multigroup training sequence is obtained, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence Bad ' J;

One group of training sequence is selected from the multigroup training sequence got；

The training sequence selected is added in burst to be sent；Receiving device extracts sequence to be matched from the burst, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

In the first possible implementation of the 6th aspect, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

With reference to the 6th aspect or the first possible implementation of the 6th aspect, in second of possible implementation of the 6th aspect,

It is described to select one group of training sequence from the multigroup training sequence got during Stochastic accessing burst when the burst is accesses first, including：

One group of training sequence is randomly choosed from multigroup training sequence；Or, preassigned one group of training sequence is selected from multigroup training sequence；

It is described to select one group of training sequence from the multigroup training sequence got during Stochastic accessing burst when the burst is accesses again, including：

The training sequence that selected training sequence is different when one group is selected from multigroup training sequence from last time access.

With reference to second of possible implementation of the 6th aspect, in the third possible implementation of the 6th aspect, the multigroup training sequence of acquisition, including：

Obtain the conventional training sequence and the extra training sequence prestored；

Or,

Obtain the conventional training sequence prestored；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

7th aspect is there is provided a kind of training sequence matching system, and the system includes： Receiving device as described in above-mentioned first aspect or second aspect and at least one transmission equipment as described in the above-mentioned third aspect or fourth aspect.

The beneficial effect of technical scheme provided in an embodiment of the present invention is：

Include conventional training sequence and multigroup training sequence of extra training sequence by obtaining, and the multigroup training sequence of sequence to be matched with getting will be extracted from burst matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reaches the purpose for improving systematic function.Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is made cylinder and singly introduced, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the equipment pie graph for the receiving device that one embodiment of the invention is provided；

Fig. 2 is the equipment pie graph for the receiving device that another embodiment of the present invention is provided；

Fig. 3 is the equipment pie graph for the receiving device that another embodiment of the invention is provided；

Fig. 4 is the equipment pie graph for the receiving device that yet another embodiment of the invention is provided；

Fig. 5 is the equipment pie graph for the transmission equipment that one embodiment of the invention is provided；

Fig. 6 is the equipment pie graph for the transmission equipment that another embodiment of the present invention is provided；

Fig. 7 is the equipment pie graph for the transmission equipment that another embodiment of the invention is provided；

Fig. 8 is the equipment pie graph for the transmission equipment that yet another embodiment of the invention is provided；

Fig. 9 is the method flow diagram for the training sequence matching process that one embodiment of the invention is provided；Figure 10 is the method flow diagram for the training sequence matching process that another embodiment of the present invention is provided；Figure 11 is the method flow diagram for the training sequence matching process that another embodiment of the invention is provided；Figure 12 is the method flow diagram for the training sequence matching process that yet another embodiment of the invention is provided；Figure 13 is the system pie graph for the training sequence matching system that one embodiment of the invention is provided；Figure 14 is the structure drawing of device for the training sequence acquisition device that one embodiment of the invention is provided；Figure 15 is the structure drawing of device for the training sequence acquisition device that another embodiment of the present invention is provided；Figure 16 is the structure drawing of device for the training sequence acquisition device that another embodiment of the invention is provided；Figure 17 is the structure drawing of device for the training sequence acquisition device that yet another embodiment of the invention is provided；Figure 18 is the method flow diagram for the training sequence acquisition methods that one embodiment of the invention is provided； Figure 19 is the method flow diagram for the training sequence acquisition methods that another embodiment of the present invention is provided.Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.Fig. 1 is referred to, the equipment pie graph of the receiving device provided it illustrates one embodiment of the invention.The receiving device can be used for matching the sequence extracted in the burst that receives.The receiving device can include：

Receiving module 101, the burst that equipment is sent is sent for receiving at least one；

Extraction module 102, for extracting sequence to be matched in the burst that is received from the receiving module 101；

First acquisition module 103, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Matching module 104, the conventional training sequence and the extra training sequence that sequence to be matched and first acquisition module 103 for the extraction module 102 to be extracted are got is matched.

In summary, receiving device provided in an embodiment of the present invention, include conventional training sequence and multigroup training sequence of extra training sequence by obtaining, and the multigroup training sequence of sequence to be matched with getting will be extracted from burst matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reaches the purpose of raising system life energy.In order to be further described to the receiving device shown in above-mentioned Fig. 1, Fig. 2 is referred to, the equipment pie graph of the receiving device provided it illustrates another embodiment of the present invention.The receiving device can be used for matching the sequence extracted in the burst that receives.The receiving device can include：

Receiving module 201, the burst that equipment is sent is sent for receiving at least one；

Extraction module 202, for extracting sequence to be matched in the burst that is received from the receiving module 201；

Equipment is sent when generating burst, selected training sequence is added to the specified location in burst, and the burst is sent to receiving device.Receiving device is received after the burst, will be from The sequence that the specified location is extracted subsequently sends the training sequence that equipment is selected as sequence to be matched according to the recognition sequence to be matched.

In the embodiment of the present invention, receiving device can receive the burst that multiple transmission equipment are sent in same time slot, such as, at least one the transmission equipment can include the first transmission equipment and the second transmission equipment, and the burst can be Stochastic accessing burst；Receiving device can receive the Stochastic accessing burst that the first transmission equipment and the second transmission equipment are sent respectively in same time slot.

Specifically, by taking the equipment access in gsm system as an example, transmission equipment is mobile terminal, and receiving device is base station.When transmission equipment needs access network, select one group of training sequence and add in Stochastic accessing burst, and the Stochastic accessing burst is sent to receiving device in a certain time slot, receiving device can receive two and send the Stochastic accessing burst that equipment is sent respectively in same time slot.

First acquisition module 203, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Wherein, the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；The preparation method of the extra training sequence is introduced first below：

Communication system is higher to the correlation requirement of training sequence, by taking gsm system as an example, burst is during transmission information, due to factors such as channel disturbances, training sequence in burst is inevitably distorted, therefore, the sequence that receiving device is extracted from the burst received is generally inconsistent with sending the training sequence that equipment is added in burst, now, receiving device is needed to be matched the sequence extracted from the burst received with conventional training sequence, the training sequence added according to matching result judgement transmission equipment in burst is specifically which group sequence in conventional training sequence.To make the accuracy of judgement sufficiently high, then need the cross correlation between each group training sequence small as far as possible, and autocorrelation is big as far as possible.

In order to expand the matching accuracy that training sequence is ensure that after extra training sequence, when obtaining extra training sequence, first, cyclic shift is carried out to conventional training sequence, obtain at least one set of alternative sequence；Secondly, the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence is calculated respectively；Finally, extra training sequence is chosen according to the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence.It should be noted that the step of above-mentioned acquisition extra training sequence by computer can be carried out simulation calculating realize by developer.

It is extended for the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system Example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows：

(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0

0, 0, 1, 1, 1, 1, 0, 0, 0);

(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,

1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

When obtaining extra training sequence, cyclic shift can be carried out to the training sequence of 3 groups of conventional Stochastic accessing bursts, the digit span of cyclic shift is 1 ~ 40, -120 groups of alternative sequences are obtained altogether.Or, sequence based on one group or two groups in 3 groups of conventional training sequences can also be only selected, and cyclic shift acquisition alternative sequence group is carried out to basic sequence.Then, the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence is calculated；Finally, the best sequence of correlation is as extra training sequence in selection alternative sequence group, and the best sequence of correlation refers to that autocorrelation is big, and the sequence small with conventional training sequence cross correlation.

Matching module 204, the conventional training sequence and the extra training sequence that sequence to be matched and first acquisition module 203 for the extraction module 202 to be extracted are got is matched.

Specifically, receiving device can carry out the sequence to be matched and the conventional training sequence got and extra training sequence respectively relevant matches, and determine one group of training sequence of correlation highest for the selected training sequence of transmitting terminal.Or, the sequence to be matched and the multigroup training sequence got can also be carried out SNR (Signal to Noise Ratio, signal to noise ratio respectively by receiving device）Matching, and determine the training sequence that one group of training sequence of SNR highests is selected by transmitting terminal.

Wherein, first acquisition module 203, including：

First acquisition unit 203a, for obtaining the conventional training sequence and the extra training sequence that prestore；

Second acquisition unit 203b, for obtaining the conventional training sequence prestored；

First circulation unit 203c, for being the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

In addition, receiving device is when carrying out sequences match, the conventional training sequence and the extra training sequence prestored can be obtained；Or, receiving device can also obtain the conventional training sequence prestored；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored. Specifically, when having expanded extra training sequence in system, the equipment in system, including equipment and receiving device are sent, extra training sequence can be directly stored, the digit of the corresponding cyclic shift of extra training sequence can also be only stored.When receiving device is matched to sequence to be matched, it is necessary to obtain all training sequences.When receiving device directly stores the extra training sequence, the extra training sequence of conventional training sequence and storage can be directly obtained；When the extra bad ij of training sequence is not stored in receiving device, and when simply storing the digit of the corresponding cyclic shift of extra training sequence, receiving device preferred can obtain conventional training sequence, conventional training sequence to getting regard the sequence obtained after cyclic shift as the extra training sequence according to the digit progress cyclic shift of the extra corresponding cyclic shift of training sequence.

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the training sequence of the conventional 3 groups of Stochastic accessing bursts of gsm system, the training sequence of one group of extra Stochastic accessing burst is added after expansion, the extra training sequence is by conventional 1 acquisition of the 1st group of training sequence cyclic shift.Do not store the extra training sequence in receiving device, but only store the mark of the 1st group of training sequence and the digit 1 of cyclic shift.When receiving device is matched to sequence to be matched, 3 groups of conventional training sequences can be obtained first, and to the 1st group of training sequence loopy moving 1 therein, obtain extra training sequence.

In addition, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1

0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the embodiment of the present invention selects the best sequence of following three groups of correlations by the above method：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,

0, 1, 0, 0, 1, 0, 1, 1, 0, 1);Three groups of sequences by first group of conventional training sequence distinguish loopy moving 1, 3 and 31 acquisitions.In actual applications, gsm system can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

In addition, the receiving module 201, the Stochastic accessing burst that equipment and the second transmission equipment are sent respectively in same time slot is sent specifically for receiving first；

Wherein, at least one described transmission equipment includes the described first transmission equipment and the second transmission equipment, and the burst is Stochastic accessing burst.

With GSM (Global System for Mobile Communications, global system for mobile communications）Exemplified by equipment access in system, receiving device receives two and sent after two Stochastic accessing bursts that equipment is sent respectively in same time slot, sequence to be matched is extracted from two Stochastic accessing bursts to be matched, the training sequence selected in two Stochastic accessing bursts is determined, and is made a distinction with the training sequence determined to send equipment to this two.It should be noted that the training sequence for sending the Stochastic accessing burst of equipment choosing herein can be the training sequence that receiving device is specified or send the randomly selected training sequence of equipment；If sending the training sequence that equipment randomly chooses Stochastic accessing burst, the training sequence of this two transmission equipment choosings is possible to identical, now, and this two send equipment access failure and access again；When transmission equipment is accessed again, the training sequence of the Stochastic accessing bursts different from last access can be selected.

In scheme shown in the embodiment of the present invention, on the one hand, receiving device and transmission equipment not only can carry out equipment access by conventional Stochastic accessing burst training sequence, equipment access can also be carried out by extra Stochastic accessing burst training sequence, the extra Stochastic accessing burst can be used to carry extra information request channel channel request by sending equipment, such as terminal ability information, terminal type identification and service identification etc., so as to reach power system capacity during expansion equipment access, improve the purpose of equipment access performance；On the other hand, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.

In summary, receiving device provided in an embodiment of the present invention, include conventional training sequence and multigroup training sequence of extra training sequence by obtaining, and the multigroup training sequence of sequence to be matched with getting will be extracted from burst matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reaches the purpose for improving systematic function；Secondly, receiving device provided in an embodiment of the present invention, the sequence from good relationship is made For extra training sequence, the matching accuracy of training sequence can be ensured after extra training sequence is expanded；In addition, receiving device provided in an embodiment of the present invention, can carry out equipment access by extra Stochastic accessing burst training sequence, so that power system capacity when reaching expansion equipment access, improves the purpose of equipment access performance；Finally, receiving device provided in an embodiment of the present invention, two can be received and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.Fig. 3 is referred to, the equipment pie graph of the receiving device provided it illustrates further embodiment of this invention.The receiving device can be used for when the sequence extracted in the burst to receiving is matched.The receiving device can include：Receiver 301 and processor 302;

The receiver 301, the burst that equipment is sent is sent for receiving at least one；

The processor 302, for extracting sequence to be matched in the burst that is received from the receiver 301；

The processor 302, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

The processor 302, is additionally operable to be matched the sequence to be matched with the conventional training sequence and the extra training sequence.

In summary, receiving device provided in an embodiment of the present invention, include conventional training sequence and multigroup training sequence of extra training sequence by obtaining, and the multigroup training sequence of sequence to be matched with getting will be extracted from burst matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reaches the purpose of raising system life energy.In order to be further described to the receiving device shown in above-mentioned Fig. 3, Fig. 4 is referred to, the equipment pie graph of the receiving device provided it illustrates yet another embodiment of the invention.The receiving device can be used for matching the sequence extracted in the burst that receives.The receiving device can include：Receiver 401 and processor 402;

The receiver 401, the burst that equipment is sent is sent for receiving at least one；

The processor 402, is treated for being extracted in the burst that is received from the receiver 401 With sequence；

Equipment is sent when generating burst, selected training sequence is added to the specified location in burst, and the burst is sent to receiving device.Receiving device is received after the burst, using the sequence extracted from the specified location as sequence to be matched, subsequently sends the training sequence that equipment is selected according to the recognition sequence to be matched.

In the embodiment of the present invention, receiving device can receive the burst that multiple transmission equipment are sent in same time slot, such as, at least one the transmission equipment can include the first transmission equipment and the second transmission equipment, and the burst can be Stochastic accessing burst；Receiving device can receive the Stochastic accessing burst that the first transmission equipment and the second transmission equipment are sent respectively in same time slot.

Specifically, by taking the equipment access in gsm system as an example, transmission equipment is mobile terminal, and receiving device is base station.When transmission equipment needs access network, select one group of training sequence and add in Stochastic accessing burst, and the Stochastic accessing burst is sent to receiving device in a certain time slot, receiving device can receive two and send the Stochastic accessing burst that equipment is sent respectively in same time slot.

The processor 402, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

The processor 402, is additionally operable to be matched the sequence to be matched with the conventional training sequence and the extra training sequence.

Wherein, the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；The preparation method of the extra training sequence is introduced first below：

Communication system is higher to the correlation requirement of training sequence, by taking gsm system as an example, burst is during transmission information, due to factors such as channel disturbances, training sequence in burst is inevitably distorted, therefore, the sequence that receiving device is extracted from the burst received is generally inconsistent with sending the training sequence that equipment is added in burst, now, receiving device is needed to be matched the sequence extracted from the burst received with conventional training sequence, the training sequence added according to matching result judgement transmission equipment in burst is specifically which group sequence in conventional training sequence.To make the accuracy of judgement sufficiently high, then need the cross correlation between each group training sequence small as far as possible, and autocorrelation is big as far as possible.

In order to expand the matching accuracy that training sequence is ensure that after extra training sequence, when obtaining extra training sequence, first, cyclic shift is carried out to conventional training sequence, obtain at least one set of alternative sequence；Secondly, calculate respectively the autocorrelation and this group of alternative sequence of this group of alternative sequence with it is conventional Cross correlation between training sequence；Finally, extra training sequence is chosen according to the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence.It should be noted that the step of above-mentioned acquisition extra training sequence by computer can be carried out simulation calculating realize by developer.

So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows：

(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0

0, 0, 1, 1, 1, 1, 0, 0, 0);

(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,

1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

When obtaining extra training sequence, cyclic shift can be carried out to the training sequence of 3 groups of conventional Stochastic accessing bursts, the digit span of cyclic shift is 1 ~ 40, -120 groups of alternative sequences are obtained altogether.Or, sequence based on one group or two groups in 3 groups of conventional training sequences can also be only selected, and cyclic shift acquisition alternative sequence group is carried out to basic sequence.Then, the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence is calculated；Finally, the best sequence of correlation is as extra training sequence in selection alternative sequence group, and the best sequence of correlation refers to that autocorrelation is big, and the sequence small with conventional training sequence cross correlation.

The receiving device also includes：Memory 403;

The processor 402, the conventional training sequence and the extra training sequence prestored for being obtained from the memory 403；

The processor 402, the conventional training sequence prestored for being obtained from the memory 403；

The processor 402, is additionally operable to the conventional training sequence cyclic shift predetermined figure that will be prestored, and is the extra training sequence by the retrieval after cyclic shift.

In addition, receiving device is when carrying out sequences match, the conventional training sequence and the extra training sequence prestored can be obtained；Or, receiving device can also obtain the conventional training sequence prestored；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

Specifically, when having expanded extra training sequence in system, the equipment in system, including transmission are set Standby and receiving device, can directly store extra training sequence, can also only store the digit of the corresponding cyclic shift of extra training sequence.When receiving device is matched to sequence to be matched, it is necessary to obtain all training sequences.When receiving device directly stores the extra training sequence, the extra training sequence of conventional training sequence and storage can be directly obtained；When the extra bad l of training sequence is not stored in receiving device, and when simply storing the digit of the corresponding cyclic shift of extra training sequence, receiving device preferred can obtain conventional training sequence, conventional training sequence to getting regard the sequence obtained after cyclic shift as the extra training sequence according to the digit progress cyclic shift of the extra corresponding cyclic shift of training sequence.

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the training sequence of the conventional 3 groups of Stochastic accessing bursts of gsm system, the training sequence of one group of extra Stochastic accessing burst is added after expansion, the extra training sequence is by conventional 1 acquisition of the 1st group of training sequence cyclic shift.Do not store the extra training sequence in receiving device, but only store the mark of the 1st group of training sequence and the digit 1 of cyclic shift.When receiving device is matched to sequence to be matched, 3 groups of conventional training sequences can be obtained first, and to the 1st group of training sequence loopy moving 1 therein, obtain extra training sequence.

In addition, the extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the embodiment of the present invention selects the best sequence of following three groups of correlations by the above method：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1

0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1);Three groups of sequences distinguish loopy moving 1,3 and 31 acquisitions by first group of conventional training sequence.In actual applications, gsm system can select above-mentioned three groups of correlations best At least one set of sequence in sequence is as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

In addition, the receiver 401, the Stochastic accessing burst that equipment and the second transmission equipment are sent respectively in same time slot is sent for receiving first；

Wherein, at least one described transmission equipment includes the described first transmission equipment and the second transmission equipment, and the burst is Stochastic accessing burst.

By taking the equipment access in gsm system as an example, receiving device receives two and sent after two Stochastic accessing bursts that equipment is sent respectively in same time slot, sequence to be matched is extracted from two Stochastic accessing bursts to be matched, the training sequence selected in two Stochastic accessing bursts is determined, and is made a distinction with the training sequence determined to send equipment to this two.It should be noted that the training sequence for sending the Stochastic accessing burst of equipment choosing herein can be the training sequence that receiving device is specified or send the randomly selected training sequence of equipment；If sending the training sequence that equipment randomly chooses Stochastic accessing burst, the training sequence of this two transmission equipment choosings is possible to identical, now, and this two send equipment access failure and access again；When transmission equipment is accessed again, the training sequence of the Stochastic accessing bursts different from last access can be selected.

In scheme shown in the embodiment of the present invention, on the one hand, receiving device and transmission equipment not only can carry out equipment access by conventional Stochastic accessing burst training sequence, equipment access can also be carried out by extra Stochastic accessing burst training sequence, the extra Stochastic accessing burst can be used to carry extra information request channel channel request by sending equipment, such as terminal ability information, terminal type identification and service identification etc., so as to reach power system capacity during expansion equipment access, improve the purpose of equipment access performance；On the other hand, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.

In summary, receiving device provided in an embodiment of the present invention, include conventional training sequence and multigroup training sequence of extra training sequence by obtaining, and the multigroup training sequence of sequence to be matched with getting will be extracted from burst matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reaches the purpose for improving systematic function；Secondly, receiving device provided in an embodiment of the present invention, from good relationship sequence as extra training sequence, the matching accuracy of training sequence can be ensured after extra training sequence is expanded；In addition, receiving device provided in an embodiment of the present invention, can pass through extra Stochastic accessing burst Training sequence carries out equipment access, so that power system capacity when reaching expansion equipment access, improves the purpose of equipment access performance；Finally, receiving device provided in an embodiment of the present invention, two can be received and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.Refer to Fig. 5, the equipment pie graph of the transmission equipment provided it illustrates one embodiment of the invention, the transmission equipment can be used for after adding selected training sequence in burst being sent to receiving device, and extracting sequence to be matched from burst by receiving device is matched.The transmission equipment can include：Second acquisition module 501, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Selecting module 502, for selecting one group of training sequence from multigroup training sequence that second acquisition module 501 is got；

Add module 503, the training sequence for the selecting module 502 to be selected is added in burst to be sent；

Sending module 504, for the burst added with the training sequence selected to be sent into receiving device, sequence to be matched is extracted from the burst by the receiving device, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

In summary, transmission equipment provided in an embodiment of the present invention, in being added to burst from conventional training sequence and extra training sequence one group of training sequence of selection, and the burst is sent to receiving device, sequence to be matched is extracted from the burst by receiving device, and the conventional training sequence and extra training sequence for getting the sequence to be matched and the receiving device are matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reach the purpose for improving systematic function.In order to be described further to the transmission equipment shown in above-mentioned Fig. 5, Fig. 6 is referred to, the equipment pie graph of the transmission equipment provided it illustrates another embodiment of the present invention.The transmission equipment can be used for after adding selected training sequence in burst being sent to receiving device, and extracting sequence to be matched from burst by receiving device is matched.The transmission equipment can include： Second acquisition module 601, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Wherein, the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence.So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows：

(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0

0, 0, 1, 1, 1, 1, 0, 0, 0);

(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,

1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

The training sequence conventional to this of the embodiment of the present invention is circulated, and selects the best sequence of following three groups of correlations：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1

0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1);Three groups of sequences distinguish loopy moving 1,3 and 31 acquisitions by first group of conventional training sequence.The specific acquisition methods of the extra training sequence refer to the associated description in above-mentioned Fig. 2 or Fig. 4 correspondence embodiments, and here is omitted.

Selecting module 602, for selecting one group of training sequence from multigroup training sequence that second acquisition module 601 is got；

Add module 603, the training sequence for the selecting module 602 to be selected is added in burst to be sent；

Sending module 604, for the burst added with the training sequence selected to be sent into receiving device, sequence to be matched is extracted from the burst by the receiving device, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

Wherein, second acquisition module 601, including： 3rd acquiring unit 601a, for obtaining the conventional training sequence and the extra training sequence that prestore；

4th acquiring unit 601b, for obtaining the conventional training sequence prestored；

Second circulation unit 601c, for being the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

When sending equipment transmission burst, the conventional training sequence and the extra training sequence prestored can be obtained；Or, the conventional training sequence prestored can also be obtained by sending equipment；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

Specifically, when having expanded extra training sequence in system, the equipment in system, including equipment and receiving device are sent, extra training sequence can be directly stored, the digit of the corresponding cyclic shift of extra training sequence can also be only stored.When sending equipment generation burst, it is necessary to obtain all bad l of training sequence.When sending equipment and directly storing the extra training sequence, the extra training sequence of conventional training sequence and storage can be directly obtained；The extra training sequence is not stored when sending in equipment, and when simply storing the digit of the corresponding cyclic shift of extra training sequence, sending equipment preferred can obtain conventional training sequence, conventional training sequence to getting regard the sequence obtained after cyclic shift as the extra training sequence according to the digit progress cyclic shift of the extra corresponding cyclic shift of training sequence.

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the training sequence of the conventional 3 groups of Stochastic accessing bursts of gsm system, the training sequence of one group of extra Stochastic accessing burst is added after expansion, the extra training sequence is by the sequence of conventional 1 acquisition of the 1st group of training sequence cyclic shift.Send in equipment and do not store the extra training sequence, but only store the mark of the 1st group of training sequence and the digit 1 of cyclic shift.When sending equipment generation burst, 3 groups of conventional training sequences can be obtained first, and to the 1st group of training sequence loopy moving 1 therein, obtain extra training sequence.

The extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,

0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。 In actual applications, GSM systems can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

The selecting module 602, including：

First choice unit 602a, for when the burst for first access when Stochastic accessing burst when, one group of training sequence is randomly choosed from multigroup training sequence；

Second selecting unit 602b, for when the burst for first access when Stochastic accessing burst when, preassigned one group of training sequence is selected from multigroup training sequence；

3rd selecting unit 602c, during for Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when one group is selected from multigroup training sequence with last access.

Send equipment can randomly choose the conventional training sequence that gets and extra training sequence in one group, preassigned training sequence can also be selected.

In addition, when the burst is Stochastic accessing burst, the method that the embodiment of the present invention also provides two kinds of following two selection training sequences：

1) when the burst for first access when Stochastic accessing burst when, send equipment one group of training sequence is randomly choosed from multigroup training sequence；Or, preassigned one group of training sequence is selected from multigroup training sequence.

Such as, it is mobile terminal when sending equipment, and the transmission equipment when accessing cell first, one group of training sequence can be randomly choosed from the conventional training sequence that gets and extra training sequence by sending equipment, or, preassigned one group of training sequence can also be selected by sending equipment.

2) during Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when equipment selects one group with last access from multigroup training sequence is sent.

Such as, it is mobile terminal when sending equipment, and the transmission equipment first access failure when, need re-accessing network, now, equipment training series different when can select access from last time is sent, specifically, sending the sequence that selected training sequence is different when equipment randomly chooses one group with last access from the conventional training sequence that gets and extra training sequence.

Exemplified by adding selected training sequence in Stochastic accessing burst in gsm, transmission equipment is mobile terminal, and receiving device is base station.Two send equipment and Stochastic accessing burst can be sent in same time slot, and it can be the training sequence or send the randomly selected training sequence of equipment that receiving device is specified to send the training sequence of the Stochastic accessing burst of equipment choosing；If sending the training sequence that equipment randomly chooses Stochastic accessing burst, the training sequence of this two transmission equipment choosings is possible to phase Together, now, this two send equipment access failure and access again；When transmission equipment is accessed again, the training sequence of the Stochastic accessing bursts different from last access can be selected.

In scheme shown in the embodiment of the present invention, on the one hand, receiving device and transmission equipment not only can carry out equipment access by conventional Stochastic accessing burst training sequence, equipment access can also be carried out by extra Stochastic accessing burst training sequence, the extra Stochastic accessing burst can be used to carry extra information request channel channel request by sending equipment, such as terminal ability information, terminal type identification and service identification etc., so as to reach power system capacity during expansion equipment access, improve the purpose of equipment access performance；On the other hand, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.

In summary, transmission equipment provided in an embodiment of the present invention, in being added to burst from conventional training sequence and extra training sequence one group of training sequence of selection, and the burst is sent to receiving device, sequence to be matched is extracted from the burst by receiving device, and the conventional training sequence and extra training sequence for getting the sequence to be matched and the receiving device are matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reach the purpose for improving systematic function；Secondly, transmission equipment provided in an embodiment of the present invention, from good relationship sequence as extra training sequence, the matching accuracy of training sequence can be ensured after extra training sequence is expanded；In addition, transmission equipment provided in an embodiment of the present invention, can carry out equipment access by extra Stochastic accessing burst training sequence, so that power system capacity when reaching expansion equipment access, improves the purpose of equipment access performance.Refer to Fig. 7, the equipment pie graph of the transmission equipment provided it illustrates further embodiment of this invention, the transmission equipment can be used for after adding selected training sequence in burst being sent to receiving device, and extracting sequence to be matched from burst by receiving device is matched.The transmission equipment can include：Processor 701 and emitter 702;

The processor 701, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

The processor 701, for selecting one group of training sequence from the multigroup training sequence got；The processor 701, for the training sequence selected to be added into burst to be sent In；

The processor 701, receiving device is sent to for controlling the emitter 702 by the burst added with the training sequence selected, sequence to be matched is extracted from the burst by the receiving device, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

In summary, transmission equipment provided in an embodiment of the present invention, in being added to burst from conventional training sequence and extra training sequence one group of training sequence of selection, and the burst is sent to receiving device, sequence to be matched is extracted from the burst by receiving device, and the conventional training sequence and extra training sequence for getting the sequence to be matched and the receiving device are matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reach the purpose for improving systematic function.In order to be described further to the transmission equipment shown in above-mentioned Fig. 7, Fig. 8 is referred to, the equipment pie graph of the transmission equipment provided it illustrates yet another embodiment of the invention.The transmission equipment can be implemented as the transmission equipment in method shown in above-mentioned Fig. 4, for being sent to receiving device after selected training sequence is added in burst, and extracting sequence to be matched from burst by receiving device is matched.The transmission equipment can include：Processor 801 and emitter 802;

The processor 801, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Wherein, the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence.So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows：

(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0 0, 0, 1, 1, 1, 1, 0, 0, 0);

(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

The training sequence conventional to this of the embodiment of the present invention is circulated, and selects the best sequence of following three groups of correlations： (0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,

0, 1, 0, 0, 1, 0, 1, 1, 0, 1);Three groups of sequences distinguish loopy moving 1,3 and 31 acquisitions by first group of conventional training sequence.The specific acquisition methods of the extra training sequence refer to the associated description in above-mentioned Fig. 2 or Fig. 4 correspondence embodiments, and here is omitted.

The processor 801, for selecting one group of training sequence from the multigroup training sequence got；The processor 801, for the training sequence selected to be added in burst to be sent；

The processor 801, receiving device is sent to for controlling the emitter 802 by the burst added with the training sequence selected, sequence to be matched is extracted from the burst by the receiving device, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

In addition, the transmission equipment also includes：Memory 803;

The processor 801, the conventional training sequence and the extra training sequence prestored for being obtained from the memory 803；

The processor 801, the conventional training sequence prestored for being obtained from the memory 803；

The processor 1201, is additionally operable to the conventional training sequence cyclic shift predetermined figure that will be prestored, and is the extra training sequence by the retrieval after cyclic shift.

When sending equipment transmission burst, the conventional training sequence and the extra training sequence prestored can be obtained；Or, the conventional training sequence prestored can also be obtained by sending equipment；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

Specifically, when having expanded extra training sequence in system, the equipment in system, including equipment and receiving device are sent, extra training sequence can be directly stored, the digit of the corresponding cyclic shift of extra training sequence can also be only stored.When sending equipment generation burst, it is necessary to obtain all bad l of training sequence.When sending equipment and directly storing the extra training sequence, the extra training sequence of conventional training sequence and storage can be directly obtained；The extra training sequence is not stored when sending in equipment, and only It is when storing the digit of the corresponding cyclic shift of extra training sequence, sending equipment preferred can obtain conventional training sequence, conventional training sequence to getting regard the sequence obtained after cyclic shift as the extra training sequence according to the digit progress cyclic shift of the extra corresponding cyclic shift of training sequence.

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the training sequence of the conventional 3 groups of Stochastic accessing bursts of gsm system, the training sequence of one group of extra Stochastic accessing burst is added after expansion, the extra training sequence is by the sequence of conventional 1 acquisition of the 1st group of training sequence cyclic shift.Send in equipment and do not store the extra training sequence, but only store the mark of the 1st group of training sequence and the digit 1 of cyclic shift.When sending equipment generation burst, 3 groups of conventional training sequences can be obtained first, and to the 1st group of training sequence loopy moving 1 therein, obtain extra training sequence.

The extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

In actual applications, GSM systems can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

The processor 801, for when the burst for first access when Stochastic accessing burst when, one group of training sequence is randomly choosed from multigroup training sequence；Or, preassigned one group of training sequence is selected from multigroup training sequence；

The processor 801, during for Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when one group is selected from multigroup training sequence with last access.

Send equipment can randomly choose the conventional training sequence that gets and extra training sequence in one group, preassigned training sequence can also be selected.

In addition, when the burst is Stochastic accessing burst, the method that the embodiment of the present invention also provides two kinds of following two selection training sequences：

1) when the burst for first access when Stochastic accessing burst when, send equipment one group of training sequence is randomly choosed from multigroup training sequence；Or, selection refers in advance from multigroup training sequence One group of fixed training sequence.

Such as, it is mobile terminal when sending equipment, and the transmission equipment when accessing cell first, one group of training sequence can be randomly choosed from the conventional training sequence that gets and extra training sequence by sending equipment, or, preassigned one group of training sequence can also be selected by sending equipment.

2) during Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when equipment selects one group with last access from multigroup training sequence is sent.

Such as, it is mobile terminal when sending equipment, and the transmission equipment first access failure when, need re-accessing network, now, equipment training series different when can select access from last time is sent, specifically, sending the sequence that selected training sequence is different when equipment randomly chooses one group with last access from the conventional training sequence that gets and extra training sequence.

Exemplified by adding selected training sequence in Stochastic accessing burst in gsm, transmission equipment is mobile terminal, and receiving device is base station.Two send equipment and Stochastic accessing burst can be sent in same time slot, and it can be the training sequence or send the randomly selected training sequence of equipment that receiving device is specified to send the training sequence of the Stochastic accessing burst of equipment choosing；If sending the training sequence that equipment randomly chooses Stochastic accessing burst, the training sequence of this two transmission equipment choosings is possible to identical, now, and this two send equipment access failure and access again；When transmission equipment is accessed again, the training sequence of the Stochastic accessing bursts different from last access can be selected.

In scheme shown in the embodiment of the present invention, on the one hand, receiving device and transmission equipment not only can carry out equipment access by conventional Stochastic accessing burst training sequence, equipment access can also be carried out by extra Stochastic accessing burst training sequence, the extra Stochastic accessing burst can be used to carry extra information request channel channel request by sending equipment, such as terminal ability information, terminal type identification and service identification etc., so as to reach power system capacity during expansion equipment access, improve the purpose of equipment access performance；On the other hand, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.

In summary, transmission equipment provided in an embodiment of the present invention, in being added to burst from conventional training sequence and extra training sequence one group of training sequence of selection, and the burst is sent to receiving device, sequence to be matched is extracted from the burst by receiving device, and the conventional training sequence and extra training sequence for getting the sequence to be matched and the receiving device are matched, solve when the transmission equipment and excessive receiving device quantity in system, it is known that N groups training sequence can not meet power system capacity Demand the problem of, reach improve systematic function purpose；Secondly, transmission equipment provided in an embodiment of the present invention, from good relationship sequence as extra training sequence, the matching accuracy of training sequence can be ensured after extra training sequence is expanded；In addition, transmission equipment provided in an embodiment of the present invention, can carry out equipment access by extra Stochastic accessing burst training sequence, so that power system capacity when reaching expansion equipment access, improves the purpose of equipment access performance.Fig. 9 is referred to, the method flow diagram of the training sequence matching process provided it illustrates one embodiment of the invention, this method can be used for matching the sequence extracted in the burst that receives.This method can include：

Step 902, receive at least one and send the burst that equipment is sent, sequence to be matched is extracted from the burst；

Step 904, multigroup training sequence is obtained, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Step 906, the sequence to be matched is matched with the conventional training sequence that gets and extra training sequence.

In summary, training sequence matching process provided in an embodiment of the present invention, include conventional training sequence and multigroup training sequence of extra training sequence by obtaining, and the multigroup training sequence of sequence to be matched with getting will be extracted from burst matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reaches the purpose for improving systematic function.In order to be described further to the training sequence matching process shown in above-mentioned Fig. 9, Figure 10 is referred to, the method flow diagram of the training sequence matching process provided it illustrates another embodiment of the present invention.This method can be used for matching the sequence extracted in the burst that receives.Exemplified by being matched in gsm to the sequence extracted in the Stochastic accessing burst that receives, the training sequence matching process can include：

Step 1002, receiving device receives at least one and sends the burst that equipment is sent, and sequence to be matched is extracted from the burst；

Equipment is sent when generating burst, selected training sequence is added to the specified location in burst, and the burst is sent to receiving device.Receiving device is received after the burst, will be from The sequence that the specified location is extracted subsequently sends the training sequence that equipment is selected as sequence to be matched according to the recognition sequence to be matched.

In method provided in an embodiment of the present invention, receiving device can receive the burst that multiple transmission equipment are sent in same time slot, such as, at least one the transmission equipment can include the first transmission equipment and the second transmission equipment, and the burst can be Stochastic accessing burst；Receiving device can receive the Stochastic accessing burst that the first transmission equipment and the second transmission equipment are sent respectively in same time slot.

Specifically, by taking the equipment access in gsm system as an example, transmission equipment is mobile terminal, and receiving device is base station.When transmission equipment needs access network, select one group of training sequence and add in Stochastic accessing burst, and the Stochastic accessing burst is sent to receiving device in a certain time slot, receiving device can receive two and send the Stochastic accessing burst that equipment is sent respectively in same time slot.

Step 1004, receiving device obtains multigroup training sequence, and multigroup training sequence includes conventional training sequence and extra training sequence；

Wherein, the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；The preparation method of the extra training sequence is introduced first below：

Communication system is higher to the correlation requirement of training sequence, by taking gsm system as an example, burst is during transmission information, due to factors such as channel disturbances, training sequence in burst is inevitably distorted, therefore, the sequence that receiving device is extracted from the burst received is generally inconsistent with sending the training sequence that equipment is added in burst, now, receiving device is needed to be matched the sequence extracted from the burst received with conventional training sequence, the training sequence added according to matching result judgement transmission equipment in burst is specifically which group sequence in conventional training sequence.To make the accuracy of judgement sufficiently high, then need the cross correlation between each group training sequence small as far as possible, and autocorrelation is big as far as possible.

In order to expand the matching accuracy that training sequence is ensure that after extra training sequence, when obtaining extra training sequence, first, cyclic shift is carried out to conventional training sequence, obtain at least one set of alternative sequence；Secondly, the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence is calculated respectively；Finally, extra training sequence is chosen according to the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence.It should be noted that the step of above-mentioned acquisition extra training sequence by computer can be carried out simulation calculating realize by developer.

So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows： (0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0

0, 0, 1, 1, 1, 1, 0, 0, 0);

(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,

1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

When obtaining extra training sequence, cyclic shift can be carried out to the training sequence of 3 groups of conventional Stochastic accessing bursts, the digit span of cyclic shift is 1 ~ 40, -120 groups of alternative sequences are obtained altogether.Or, sequence based on one group or two groups in 3 groups of conventional training sequences can also be only selected, and cyclic shift acquisition alternative sequence group is carried out to basic sequence.Then, the cross correlation between the autocorrelation and this group of alternative sequence and conventional training sequence of this group of alternative sequence is calculated；Finally, the best sequence of correlation is as extra training sequence in selection alternative sequence group, and the best sequence of correlation refers to that autocorrelation is big, and the sequence small with conventional training sequence cross correlation.

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the embodiment of the present invention selects the best sequence of following three groups of correlations by the above method：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,

0, 1, 0, 0, 1, 0, 1, 1, 0, 1);Three groups of sequences distinguish loopy moving 1,3 and 31 acquisitions by first group of conventional training sequence.

In actual applications, GSM systems can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

In addition, receiving device is when carrying out sequences match, the conventional training sequence and the extra training sequence prestored can be obtained；Or, receiving device can also obtain the conventional training sequence prestored；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

Specifically, when having expanded extra training sequence in system, the equipment in system, including equipment and receiving device are sent, extra training sequence can be directly stored, the digit of the corresponding cyclic shift of extra training sequence can also be only stored.When receiving device is matched to sequence to be matched, it is necessary to obtain all Training sequence.When receiving device directly stores the extra training sequence, the extra training sequence of conventional training sequence and storage can be directly obtained；When the extra bad ij of training sequence is not stored in receiving device, and when simply storing the digit of the corresponding cyclic shift of extra training sequence, receiving device preferred can obtain conventional training sequence, conventional training sequence to getting regard the sequence obtained after cyclic shift as the extra training sequence according to the digit progress cyclic shift of the extra corresponding cyclic shift of training sequence.

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the training sequence of the conventional 3 groups of Stochastic accessing bursts of gsm system, the training sequence of one group of extra Stochastic accessing burst is added after expansion, the extra training sequence is by conventional 1 acquisition of the 1st group of training sequence cyclic shift.Do not store the extra training sequence in receiving device, but only store the mark of the 1st group of training sequence and the digit 1 of cyclic shift.When receiving device is matched to sequence to be matched, 3 groups of conventional training sequences can be obtained first, and to the 1st group of training sequence loopy moving 1 therein, obtain extra training sequence.

Step 1006, receiving device is matched the sequence to be matched with the conventional training sequence that gets and extra training sequence.

Specifically, receiving device can carry out the sequence to be matched and the conventional training sequence got and extra training sequence respectively relevant matches, and determine one group of training sequence of correlation highest for the selected training sequence of transmitting terminal.Or, the sequence to be matched and the multigroup training sequence got can also be carried out SNR (Signal to Noise Ratio, signal to noise ratio respectively by receiving device）Matching, and determine the training sequence that one group of training sequence of SNR highests is selected by transmitting terminal.

By taking the equipment access in gsm system as an example, receiving device receives two and sent after two Stochastic accessing bursts that equipment is sent respectively in same time slot, sequence to be matched is extracted from two Stochastic accessing bursts to be matched, the training sequence selected in two Stochastic accessing bursts is determined, and is made a distinction with the training sequence determined to send equipment to this two.It should be noted that the training sequence for sending the Stochastic accessing burst of equipment choosing herein can be the training sequence that receiving device is specified or send the randomly selected training sequence of equipment；If sending the training sequence that equipment randomly chooses Stochastic accessing burst, the training sequence of this two transmission equipment choosings is possible to identical, now, and this two send equipment access failure and access again；When transmission equipment is accessed again, the training sequence of the Stochastic accessing bursts different from last access can be selected.

Training sequence matching process shown in the embodiment of the present invention, on the one hand, receiving device and transmission equipment not only can carry out equipment access by conventional Stochastic accessing burst training sequence, can also be by extra Stochastic accessing burst training sequence carry out equipment access, the extra Stochastic accessing burst can be used to carry extra information request channel channel request by sending equipment, such as terminal ability information, terminal type identification and service identification etc., so as to reach power system capacity during expansion equipment access, the purpose of equipment access performance is improved；On the other hand, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.

In summary, training sequence matching process provided in an embodiment of the present invention, include conventional training sequence and multigroup training sequence of extra training sequence by obtaining, and the multigroup training sequence of sequence to be matched with getting will be extracted from burst matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known Ν groups training sequence can not meet the demand of power system capacity, reaches the purpose for improving systematic function；Secondly, training sequence matching process provided in an embodiment of the present invention, from good relationship sequence as extra training sequence, the matching accuracy of training sequence can be ensured after extra training sequence is expanded；In addition, training sequence matching process provided in an embodiment of the present invention, receiving device and transmission equipment can carry out equipment access by extra Stochastic accessing burst training sequence, so that power system capacity when reaching expansion equipment access, improves the purpose of equipment access performance；Finally, training sequence matching process provided in an embodiment of the present invention, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.Refer to Figure 11, the method flow diagram of the training sequence matching process provided it illustrates further embodiment of this invention, this method can be used for after adding selected training sequence in burst being sent to receiving device, and extracting sequence to be matched from burst by receiving device is matched.This method can include：Step 1102, multigroup training sequence is obtained, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

Step 1104, one group of training sequence is selected from the multigroup training sequence got；

Step 1106, the training sequence selected is added in burst to be sent；

Step 1108, the burst after training sequence addition selected is sent to receiving device, sequence to be matched is extracted from the burst by the receiving device, and the sequence to be matched and the reception are set The standby conventional training sequence got and extra training sequence are matched.

In summary, method provided in an embodiment of the present invention, in being added to burst from conventional training sequence and extra training sequence one group of training sequence of selection, and the burst is sent to receiving device, sequence to be matched is extracted from the burst by receiving device, and the conventional training sequence and extra training sequence for getting the sequence to be matched and the receiving device are matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known N groups training sequence can not meet the demand of power system capacity, reach the purpose for improving systematic function.In order to which the training sequence matching process shown in above-mentioned Figure 11 is described in further detail, Figure 12 is referred to, the method flow diagram of the training sequence matching process provided it illustrates yet another embodiment of the invention.The training sequence matching process can be used for after adding selected training sequence in burst being sent to receiving device, and extracting sequence to be matched from burst by receiving device is matched.So that exemplified by gsm system, adding selected training sequence in Stochastic accessing burst, this method can include：

Step 1202, send equipment and obtain multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence；

Wherein, the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence.So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows：

(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0 0, 0, 1, 1, 1, 1, 0, 0, 0);

(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

The training sequence conventional to this of the embodiment of the present invention is circulated, and selects the best sequence of following three groups of correlations：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1);Three groups of sequences distinguish loopy moving 1,3 and 31 acquisitions by first group of conventional training sequence.The specific acquisition methods of the extra training sequence refer to the associated description under above-mentioned steps 1004, and here is omitted.

In actual applications, GSM systems can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

When sending equipment transmission burst, the conventional training sequence and the extra training sequence prestored can be obtained；Or, the conventional training sequence prestored can also be obtained by sending equipment；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

Specifically, when having expanded extra training sequence in system, the equipment in system, including equipment and receiving device are sent, extra training sequence can be directly stored, the digit of the corresponding cyclic shift of extra training sequence can also be only stored.When sending equipment generation burst, it is necessary to obtain all bad l of training sequence.When sending equipment and directly storing the extra training sequence, the extra training sequence of conventional training sequence and storage can be directly obtained；The extra training sequence is not stored when sending in equipment, and when simply storing the digit of the corresponding cyclic shift of extra training sequence, sending equipment preferred can obtain conventional training sequence, conventional training sequence to getting regard the sequence obtained after cyclic shift as the extra training sequence according to the digit progress cyclic shift of the extra corresponding cyclic shift of training sequence.

By taking the training sequence of the Stochastic accessing burst in gsm system as an example, the training sequence of the conventional 3 groups of Stochastic accessing bursts of gsm system, the training sequence of one group of extra Stochastic accessing burst is added after expansion, the extra training sequence is by the sequence of conventional 1 acquisition of the 1st group of training sequence cyclic shift.Send in equipment and do not store the extra training sequence, but only store the mark of the 1st group of training sequence and the digit 1 of cyclic shift.When sending equipment generation burst, 3 groups of conventional training sequences can be obtained first, and to the 1st group of training sequence loopy moving 1 therein, obtain extra training sequence.

Step 1204, send equipment and one group of training sequence is selected from the multigroup training sequence got；Wherein, send equipment can randomly choose the conventional training sequence that gets and extra training sequence in one group, preassigned training sequence can also be selected.

In addition, when the burst is Stochastic accessing burst, the method that the embodiment of the present invention also provides two kinds of following two selection training sequences：

1) when the burst for first access when Stochastic accessing burst when, send equipment one group of training sequence is randomly choosed from multigroup training sequence；Or, selection refers in advance from multigroup training sequence One group of fixed training sequence.

Such as, it is mobile terminal when sending equipment, and the transmission equipment when accessing cell first, one group of training sequence can be randomly choosed from the conventional training sequence that gets and extra training sequence by sending equipment, or, preassigned one group of training sequence can also be selected by sending equipment.

2) during Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when equipment selects one group with last access from multigroup training sequence is sent.

Such as, it is mobile terminal when sending equipment, and the transmission equipment first access failure when, need re-accessing network, now, equipment training series different when can select access from last time is sent, specifically, sending the sequence that selected training sequence is different when equipment randomly chooses one group with last access from the conventional training sequence that gets and extra training sequence.

Exemplified by adding selected training sequence in Stochastic accessing burst in gsm, transmission equipment is mobile terminal, and receiving device is base station.Two send equipment and Stochastic accessing burst can be sent in same time slot, and it can be the training sequence or send the randomly selected training sequence of equipment that receiving device is specified to send the training sequence of the Stochastic accessing burst of equipment choosing；If sending the training sequence that equipment randomly chooses Stochastic accessing burst, the training sequence of this two transmission equipment choosings is possible to identical, now, and this two send equipment access failure and access again；When transmission equipment is accessed again, the training sequence of the Stochastic accessing bursts different from last access can be selected.

Step 1206, send equipment the training sequence selected is added in burst to be sent；Equipment is sent when generating burst, selected training sequence is added to the specified location in burst, and the burst is sent to receiving device.Receiving device is received after the burst, subsequently can send the training sequence that equipment is selected according to the recognition sequence to be matched using the sequence extracted from the specified location as sequence to be matched.

Step 1208, send the burst after the training sequence that equipment selects addition and be sent to receiving device；

Receiving device can extract sequence to be matched from the burst, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

Exemplified by adding selected training sequence in Stochastic accessing burst, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, matched from the sequence to be matched that extracts in the Stochastic accessing burst, determine that two send the training sequence that equipment is selected respectively, and the training sequence selected respectively according to this two transmission equipment sends equipment to this two and made a distinction.

Training sequence matching process shown in the embodiment of the present invention, on the one hand, receiving device and transmission equipment are not Only equipment access can be carried out by conventional Stochastic accessing burst training sequence, equipment access can also be carried out by extra Stochastic accessing burst training sequence, the extra Stochastic accessing burst can be used to carry extra information request channel channel request by sending equipment, such as terminal ability information, terminal type identification and service identification etc., so as to reach power system capacity during expansion equipment access, the purpose of equipment access performance is improved；On the other hand, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.

In summary, method provided in an embodiment of the present invention, in being added to burst from conventional training sequence and extra training sequence one group of training sequence of selection, and the burst is sent to receiving device, sequence to be matched is extracted from the burst by receiving device, and the conventional training sequence and extra training sequence for getting the sequence to be matched and the receiving device are matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known Ν groups training sequence can not meet the demand of power system capacity, reach the purpose for improving systematic function；Secondly, training sequence matching process provided in an embodiment of the present invention, from good relationship sequence as extra training sequence, the matching accuracy of training sequence can be ensured after extra training sequence is expanded；In addition, training sequence matching process provided in an embodiment of the present invention, receiving device and transmission equipment can carry out equipment access by extra Stochastic accessing burst training sequence, so that power system capacity when reaching expansion equipment access, improves the purpose of equipment access performance.Figure 13 is referred to, the system pie graph of the training sequence matching system provided it illustrates one embodiment of the invention.The system can include：

Receiving device 1301 as shown in above-mentioned Fig. 1 to 4 is any and at least one transmission equipment 1302 as shown in above-mentioned Fig. 5 to 8 is any.

In summary, training sequence matching system provided in an embodiment of the present invention, by sending equipment from conventional training sequence and extra training sequence one group of training sequence of selection are added to burst, and the burst is sent to receiving device, sequence to be matched is extracted from the burst by receiving device, and the conventional training sequence and extra training sequence for getting the sequence to be matched and the receiving device are matched, solve when the transmission equipment and excessive receiving device quantity in system, the problem of known Ν groups training sequence can not meet the demand of power system capacity, reach the purpose for improving systematic function；Secondly, training sequence matching system provided in an embodiment of the present invention, from good relationship sequence as the extra bad ij of training sequence, the matching accuracy of training sequence can be ensured after extra training sequence is expanded；In addition, this hair The training sequence matching system that bright embodiment is provided, receiving device and transmission equipment can carry out equipment access by extra Stochastic accessing burst training sequence, so that power system capacity when reaching expansion equipment access, improves the purpose of equipment access performance；Finally, training sequence matching system provided in an embodiment of the present invention, receiving device can receive two and send the Stochastic accessing burst that equipment is sent in same time slot, and the training sequence carried respectively according to the Stochastic accessing burst received sends equipment to this two and made a distinction, so as to realize that two send multiplexing of the equipment in same time slot, power system capacity during equipment access is further expanded, equipment access performance is improved.Figure 14 is referred to, the structure drawing of device of the training sequence acquisition device provided it illustrates one embodiment of the invention.The device can be used for obtaining extra training sequence, to expand conventional training sequence.The device can include：

Loop module 1401, for carrying out cyclic shift to conventional training sequence, obtains at least one set of alternative sequence；

First computing module 1402, the autocorrelation for calculating the alternative sequence that the loop module 1401 is obtained；

Second computing module 1403, the cross correlation between alternative sequence and the conventional training sequence for calculating the acquisition of loop module 1401；The cross correlation stated between conventional training sequence obtains extra training sequence.

In summary, training sequence acquisition device provided in an embodiment of the present invention, by carrying out cyclic shift to conventional training sequence, obtain at least one set of alternative sequence, and extra training sequence is obtained according to the cross correlation between the autocorrelation of the alternative sequence and the alternative sequence and conventional training sequence, from good relationship sequence as extra training sequence, reach the purpose for the matching accuracy for ensureing training sequence after extra training sequence is expanded.In order to be further described to the training sequence acquisition device shown in above-mentioned Figure 14, Figure 15 is referred to, the structure drawing of device of the training sequence acquisition device provided it illustrates another embodiment of the present invention.The device can be used for obtaining extra training sequence, to expand conventional training sequence.The device can include：Loop module 1501, for carrying out cyclic shift to conventional training sequence, obtains at least one set of alternative sequence；

First computing module 1502, for calculate the alternative sequence that the loop module 1501 is obtained from phase Guan Xing；

Second computing module 1503, the cross correlation between alternative sequence and the conventional training sequence for calculating the acquisition of loop module 1501；The cross correlation stated between conventional training sequence obtains extra training sequence.

Wherein, the loop module 1501, including：

First circulation unit 1501a, carries out cyclic shift for conventional training sequence described to N groups according to the following formula, obtains at least one set of alternative sequence：

circshift(n, m) = circshift((5.,, S), m)

~ i^Ntr-m, ^Ntr-l ' ' ' " ' ' ^ Ntr-m-1)

Wherein, TSC is that the conventional training sequence is bad!, M is the sequence digit of the conventional training sequence,

K m M-l, m are integer, and N is positive integer；

Second computing module 1503, for calculating the cross correlation between each sequence in the alternative sequence and the conventional training sequence of the N groups respectively.

The loop module 1501, in addition to：

Selecting unit 1501b, for selecting sequence based at least one set of in the N groups conventional training sequence；

Second circulation unit 1501c, for carrying out cyclic shift to the basic sequence according to the following formula, obtains at least one set of alternative sequence：

Circshift (5C, m)-circshifti^ ,), m)

― {^Ntr-m ·> " ' ·> ^Ntr-l ' ' ' " " ' ^ Ntr-m-l ) ·

Wherein, TSC is the basic sequence, and M is the sequence digit of the basic sequence, and l m M-l, m are prime number, and N is positive integer；

Second computing module 1503, for calculating the cross correlation between each sequence in the alternative sequence and the conventional training sequence of the N groups respectively.

Communication system is higher to the correlation requirement of training sequence, by taking gsm system as an example, burst is during transmission information, due to factors such as channel disturbances, training sequence in burst is inevitably distorted, therefore, the sequence that receiving device is extracted from the burst received is often not quite identical with sending the training sequence that equipment is added in burst, now, receiving device is needed to be matched the sequence extracted from the burst received with conventional training sequence, the training sequence added according to matching result judgement transmission equipment in burst is specifically which group sequence in conventional training sequence Bad l.To make the accuracy of judgement sufficiently high, then need the cross correlation between conventional each group training sequence small as far as possible, and autocorrelation is big as far as possible.Similarly, to expand conventional training sequence, extra training sequence is increased, then the cross correlation between the extra training sequence and each conventional training sequence is also required to small as far as possible.

Because the cross correlation between conventional training sequence is very small, the alternative sequence got based on conventional training sequence, the small possibility of its cross correlation between each conventional training sequence is very high.Therefore, the embodiment of the present invention obtains alternative sequence based on conventional training sequence, and relative to all possible alternative sequence or random selection alternative sequence is traveled through, while cylinder calculation procedure, its correlation is often more preferable.In addition, because the signal to noise ratio of conventional training sequence is also good enough, the alternative sequence got based on conventional training sequence, its signal to noise ratio is also sufficient for the requirement of training sequence in theory, therefore, the analysis in terms of method provided in an embodiment of the present invention is also without signal to noise ratio is done to alternative sequence.

Specifically, training sequence acquisition device can carry out cyclic shift to the conventional training sequence of N groups according to the following formula, at least one set of alternative sequence is obtained：

circshift(n, m) = circshift((5.,, S), m)

~ i^Ntr-m, ^Ntr-l ' ' ' " ' ' ^ Ntr-m-1)

Wherein, TSC is conventional training sequence, and M is the sequence digit of conventional training sequence, l m

<M-1, and m is integer, N is positive integer.

So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, training sequence acquisition device can carry out cyclic shift to the training sequence of 3 groups of conventional Stochastic accessing bursts, the digit span of cyclic shift is 1 ~ 40, -120 groups of alternative sequences are obtained altogether.

Or, training sequence acquisition device is also an option that sequence based at least one set in the conventional training sequence of N groups；And cyclic shift is carried out to the basic sequence according to the following formula, obtain at least one set of alternative sequence：

circshift(n, m) = circshift((5.,, S), m)

~ i^Ntr-m, ^Ntr-l ' ' ' " ' ' ^ Ntr-m-1)

Wherein, the sequence digit of sequence based on sequence based on TSC, M, l m M-l, and m are prime number, and N is positive integer.

Exemplified by the same training sequence by 3 groups of 41 Stochastic accessing bursts conventional to gsm system expands, for further cylinder calculation procedure, reduce the calculating time, sequence based on training sequence acquisition device can only select one group or two groups in 3 groups of conventional training sequences, and cyclic shift acquisition alternative sequence is carried out to basic sequence. Wherein, it can be randomly choosed during sequence based at least one set in the conventional training sequence of selection

One group in N group conventional training sequences, can also select that correlation is best in the N group conventional training sequences one group.Such as, sequence based on training sequence acquisition device can randomly choose one group in conventional N group training sequences, can also be to digit progress cyclic shift of the conventional N groups training sequence according to 1 ~ M-1, and calculate the cross correlation between every group of training sequence alternative sequence that each cyclic shift is obtained, one group of best training sequence of cross correlation is retrieved as basic sequence, wherein, one group of best training sequence of cross correlation refers to one group of minimum training sequence of the average value of the cross correlation between each alternative sequence that cyclic shift is obtained, or, cross correlation between each alternative sequence that cyclic shift is obtained is being distributed one group of most intensive training sequence at 0 point.

In addition, when carrying out cyclic shift to basic sequence, can be according to odd bits cyclic shift, even bit cyclic shift or prime number position cyclic shift, wherein, according to the small possibility highest of the cross correlation between the alternative sequence of prime number position cyclic shift acquisition and the training sequence of routine, and the alternative sequence according to the acquisition of even bit cyclic shift and the small possibility of the cross correlation between the training sequence of routine are minimum, therefore, in order to further reduce cylinder calculation procedure, reduce hardware resource requirements, reduce the calculating time, cyclic shift only can be carried out according to prime number position to above-mentioned basic sequence.

By taking the training sequence of 3 groups of conventional 41 Stochastic accessing bursts of gsm system as an example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows：

1st group： (BN8, BN9 -..BN48) =(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0);

2nd group： (BN8, BN9 -..BN48) =(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0,

0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

3rd group： (BN8, BN9 -..BN48) =(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0,

1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

Training sequence acquisition device carries out cyclic shift to above-mentioned 3 groups of training sequences according to 1 ~ 41 digit first, obtain each self-corresponding alternative sequence of every group of training sequence, and calculate the cross correlation between every group of training sequence alternative sequence that each cyclic shift is obtained, assuming that analysis determines that the cross correlation between the alternative sequence to the 1st group of training sequence cyclic shift acquisition is best, then the 1st group of training sequence is further carried out cyclic shift by training sequence acquisition device according to prime number position, wherein, prime number between 1 ~ 41 has 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 totally 12, 1st group of training sequence is distinguished cyclic shift 2 by training sequence acquisition device, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, obtain 12 groups of alternative sequences. By above-mentioned steps, method provided in an embodiment of the present invention can further reduce calculation procedure, reduce hardware resource requirements, saving calculating time while ensureing that the alternative sequence that gets has correlation good enough.

Wherein, the autocorrelation of the sequence of calculation and the method for cross correlation have a lot, such as are calculated according to Pearson came formula, and the method for autocorrelation and cross correlation for the sequence of calculation, the embodiment of the present invention is not specifically limited.

It should be noted that when there is the training sequence of Ν groups routine, training sequence acquisition device needs to calculate the cross correlation between each sequence in the alternative sequence of acquisition and the conventional training sequence of the Ν groups respectively.

Such as, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain after 12 groups of alternative sequences, it is necessary to calculate the cross correlation between each sequence in 12 groups of alternative sequences and 3 groups of conventional training sequences respectively.

In addition, the acquisition module 1504, including：

First detection unit 1504a, for detecting whether the alternative sequence meets the first predetermined condition；First acquisition unit 1504b, if meeting first predetermined condition for the alternative sequence, the extra training sequence is retrieved as by the alternative sequence；

Wherein, first predetermined condition includes：

The maximum of cross correlation between each sequence that the autocorrelation of the alternative sequence is more than in the first relevance threshold, and the alternative sequence and the conventional training sequence of the N groups is less than the second relevance threshold；

And/or, the difference of the maximum of the cross correlation between each sequence in the autocorrelation of the alternative sequence and the alternative sequence and the conventional training sequence of the N groups is more than difference threshold.

The acquisition module 1504, in addition to：

Second detection unit 1504c, for detecting whether the alternative sequence meets the second predetermined condition；Second acquisition unit 1504d, if meeting second predetermined condition for the alternative sequence, the extra training sequence is retrieved as by the alternative sequence；

Wherein, second predetermined condition includes：

The alternative sequence is in preceding a in First ray group, and the alternative sequence is in preceding b in the second sequence group；And/or, the alternative sequence is in preceding c in the 3rd sequence group；A, b and c are less than the group number of the alternative sequence；

The First ray group be by least one set of alternative sequence according to respective autocorrelation by greatly to The sequence group that small order arrangement is obtained；

The second sequence group be by least one set of alternative sequence according to the ascending order arrangement acquisition of the maximum of the cross correlation between each sequence in respective training sequence conventional with the N groups sequence it is bad ' J groups；

The sequence group that the 3rd sequence group obtains for the descending order arrangement of the difference of the maximum of the cross correlation between each sequence in the training sequence that at least one set of alternative sequence is according to respective autocorrelation and each conventional with the N groups.

Training sequence acquisition device can detect whether the alternative sequence meets the first predetermined condition；If the alternative sequence meets first predetermined condition, the alternative sequence is retrieved as to extra training sequence；Wherein, first predetermined condition includes：

The maximum of correlation between each sequence that the autocorrelation of the alternative sequence is more than in the first relevance threshold, and the alternative sequence training sequence conventional with the N groups is less than the second relevance threshold；And/or, the difference of the maximum of the correlation between each sequence in the autocorrelation of the alternative sequence and the alternative sequence training sequence conventional with the N groups is more than difference threshold.

Training sequence acquisition device can also detect whether the alternative sequence meets the second predetermined condition；If the alternative sequence meets second predetermined condition, the alternative sequence is retrieved as the extra training sequence；Wherein, second predetermined condition includes：The alternative sequence is in preceding a in the First ray group, and the alternative sequence is in preceding b in the second sequence group；And/or, the alternative sequence is in preceding c in the 3rd sequence group；A, b and c are less than the group number of the alternative sequence.

Wherein, First ray group is that at least one set of alternative sequence is arranged to the sequence group obtained according to the descending order of respective autocorrelation；Second sequence group is that at least one set of alternative sequence is arranged to the sequence group obtained according to the ascending order of the maximum of the cross correlation between each sequence in training sequence each conventional with N groups；The sequence group that 3rd sequence group obtains for the descending order arrangement of the difference of the maximum of the cross correlation between each sequence in the training sequence that at least one set of alternative sequence is according to respective autocorrelation and each conventional with N groups.

Specifically, developer can set dependent thresholds to the difference between autocorrelation, cross correlation and/or autocorrelation and cross correlation, the alternative sequence for meeting dependent thresholds can be retrieved as extra training sequence by training sequence acquisition device.By taking the training sequence of 3 groups of conventional 41 Stochastic accessing bursts of gsm system as an example, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, 12 groups of alternative sequences are obtained, and calculate the cross correlation in 3 groups of training sequences of 12 groups of alternative sequences and routine between each sequence respectively and respective Autocorrelation after, autocorrelation can be more than to the first relevance threshold, and the maximum of the cross correlation between each sequence in 3 groups of conventional training sequences is less than the training sequence of the second relevance threshold and is retrieved as extra training sequence；Or, the difference of the maximum for the correlation that training sequence acquisition device can be by autocorrelation and between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence more than the alternative sequence of difference threshold；Or, autocorrelation can also be more than the first relevance threshold by training sequence acquisition device, the maximum of cross correlation between each sequence in 3 groups of conventional training sequences is less than the second relevance threshold, and the difference of the maximum of autocorrelation and the correlation between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence more than the alternative sequence of difference threshold.

Or, training sequence acquisition device can also be ranked up according to autocorrelation and cross correlation to alternative sequence, and most forward by sorting, i.e. the best one or more groups of alternative sequences of correlation are retrieved as extra training sequence.Exemplified by the training sequence of same 3 groups of 41 Stochastic accessing bursts conventional by gsm system, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain 12 groups of alternative sequences, and calculate respectively this 12 groups it is alternative after, 12 groups of alternative sequences are descending according to respective autocorrelation respectively, each the maximum of the correlation between each sequence in 3 groups of conventional training sequences is ascending, and the descending order of difference of respective autocorrelation and respective maximum of the correlation between each sequence in 3 groups of conventional training sequences is arranged, obtain three sequence groups.Training sequence acquisition device can be by preceding a in first sequence group, and the alternative sequence of preceding b being in second sequence group is retrieved as extra training sequence；Or, the alternative sequence of preceding c in the 3rd sequence group can be retrieved as extra training sequence by training sequence acquisition device；Or, training sequence acquisition device can be by preceding a in first sequence group, preceding b in second sequence group, and the alternative sequence of preceding c being in the 3rd sequence group is retrieved as extra training sequence；Wherein, a, b and c value are less than 12.

In actual applications, above-mentioned first relevance threshold, the second relevance threshold, difference threshold and a, bright embodiment are not specifically limited.

The extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

In actual applications, GSM systems can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

Another sunset is foretold, the embodiment of the present invention is only illustrated so that the training sequence of 3 groups of 41 Stochastic accessing bursts conventional to gsm system expands as an example, but the application of method shown in the embodiment of the present invention is not limited and this, for training sequence higher to correlation requirement in the other type training sequences or different system in homologous ray, method provided in an embodiment of the present invention is equally applicable.The embodiment of the present invention is not specifically limited for the application of shown method.

In summary, training sequence acquisition device provided in an embodiment of the present invention, by carrying out cyclic shift to conventional training sequence, obtain at least one set of alternative sequence, and extra training sequence is obtained according to the cross correlation between the autocorrelation of the alternative sequence and the alternative sequence and conventional training sequence, from good relationship sequence as extra training sequence, reach the purpose for the matching accuracy for ensureing training sequence after extra training sequence is expanded；In addition, training sequence acquisition device provided in an embodiment of the present invention, pass through sequence based on the selection at least one set from conventional N group training sequences, and alternative sequence is obtained according to prime number position cyclic shift to basic sequence, while ensureing that the alternative sequence that gets has correlation good enough, calculation procedure can be reduced, hardware resource requirements are reduced, the calculating time is saved.Figure 16 is referred to, the structure drawing of device of the training sequence acquisition device provided it illustrates further embodiment of this invention.The device can be used for obtaining extra training sequence, to expand conventional training sequence.The device can include：At least one I/O interface 001, at least one processor 002, such as CPU, memory 003 and display 004;Memory 003 may include high speed Ram memories, it is also possible to also including non-labile memory（Non- volatile memory), for example, at least one magnetic disk storage.Memory 003 can optionally be located remotely from the storage device of aforementioned processor 002 comprising at least one.In some embodiments, memory 003 stores following element, module either data structure or their subset, or their superset：

Operating system 0031, comprising various programs, for realizing various basic businesses and handling hardware based task；

Application module 0032, includes one of following module or combination：Loop module, the first computing module, the second computing module and acquisition module, the function of above-mentioned module may be referred to the structure drawing of device shown in Fig. 4 Declaratives, here is omitted.

Wherein, processor 002 is connected 003 with memory;I/O interfaces 001-end is connected with processor 002 and memory 003, and the other end is connected with display 004；

The processor 002, for carrying out cyclic shift to conventional training sequence, obtains at least one set of alternative sequence；

The processor 002, the autocorrelation for calculating the alternative sequence；

The processor 002, for calculating the cross correlation between the alternative sequence and the conventional training sequence；Cross correlation between the conventional training sequence obtains extra training sequence.

In summary, training sequence acquisition device provided in an embodiment of the present invention, by carrying out cyclic shift to conventional training sequence, obtain at least one set of alternative sequence, and extra training sequence is obtained according to the cross correlation between the autocorrelation of the alternative sequence and the alternative sequence and conventional training sequence, from good relationship sequence as extra training sequence, reach the purpose for the matching accuracy for ensureing training sequence after extra training sequence is expanded.In order to be further described to the training sequence acquisition device shown in above-mentioned Figure 16, Figure 17 is referred to, the structure drawing of device of the training sequence acquisition device provided it illustrates yet another embodiment of the invention.The device can be used for obtaining extra training sequence, to expand conventional training sequence.The device can include：At least one I/O interface 005, at least one processor 006, such as CPU, memory 007 and display 008;Memory 007 may include high speed Ram memories, it is also possible to also including non-labile memory, for example, at least one magnetic disk storage.Memory 007 can optionally be located remotely from the storage device of aforementioned processor 006 comprising at least one.In some embodiments, memory 007 stores following element, module either data structure or their subset, or their superset：

Operating system 0071, comprising various programs, for realizing various basic businesses and handling hardware based task；

Application module 0072, includes one of following module or combination：Loop module, the first computing module, the second computing module and acquisition module, the function of above-mentioned module may be referred to the declaratives of the structure drawing of device shown in Fig. 4, and here is omitted.

Processor 006 is connected 007 with memory;I/O interfaces 005-end is connected 007 with processor 006 and memory, and the other end is connected with display 008； The processor 006, for carrying out cyclic shift to conventional training sequence, obtains at least one set of alternative sequence；

The processor 006, the autocorrelation for calculating the alternative sequence；

The processor 006, for calculating the cross correlation between the alternative sequence and the conventional training sequence；Cross correlation between the conventional training sequence obtains extra training sequence.

The processor 006, carries out cyclic shift for conventional training sequence described to N groups according to the following formula, obtains at least one set of alternative sequence：

circshift(n, m) = circshift((5.,, S), m)

- i^Ntr-m, ^Ntr-l ' ' ' " ' ' ^ Ntr-m-1)

Wherein, TSC is that the conventional training sequence is bad!, M is the sequence digit of the conventional training sequence, and K m M-l, m are integer, and N is positive integer；

The processor 006, for calculating the cross correlation between each sequence in the alternative sequence and the conventional training sequence of the N groups respectively.

The processor 006, is additionally operable to select sequence based at least one set in the N groups conventional training sequence, and carries out cyclic shift to the basic sequence according to the following formula, obtains at least one set of alternative sequence：

circshift(n, m) = circshift((5.,, S), m)

~ ^Ntr-m, ^Ntr-l ' ' ' ' ' ' ' ^ Ntr-m-1)

Wherein, TSC is the basic sequence, and M is the sequence digit of the basic sequence, and l m M-l, m are prime number, and N is positive integer；

The processor 006, for calculating the cross correlation between each sequence in the alternative sequence and the conventional training sequence of the N groups respectively.

Communication system is higher to the correlation requirement of training sequence, by taking gsm system as an example, burst is during transmission information, due to factors such as channel disturbances, training sequence in burst is inevitably distorted, therefore, the sequence that receiving device is extracted from the burst received is often not quite identical with sending the training sequence that equipment is added in burst, now, receiving device is needed to be matched the sequence extracted from the burst received with conventional training sequence, the training sequence added according to matching result judgement transmission equipment in burst is specifically which bad I of group sequence in conventional training sequence.To make the accuracy of judgement sufficiently high, then the cross correlation between conventional each group training sequence is needed It is small as far as possible, and autocorrelation is big as far as possible.Similarly, to expand conventional training sequence, extra training sequence is increased, then the cross correlation between the extra training sequence and each conventional training sequence is also required to small as far as possible.

Because the cross correlation between conventional training sequence is very small, the alternative sequence got based on conventional training sequence, the small possibility of its cross correlation between each conventional training sequence is very high.Therefore, the embodiment of the present invention obtains alternative sequence based on conventional training sequence, and relative to all possible alternative sequence or random selection alternative sequence is traveled through, while cylinder calculation procedure, its correlation is often more preferable.In addition, because the signal to noise ratio of conventional training sequence is also good enough, the alternative sequence got based on conventional training sequence, its signal to noise ratio is also sufficient for the requirement of training sequence in theory, therefore, the analysis in terms of method provided in an embodiment of the present invention is also without signal to noise ratio is done to alternative sequence.

Specifically, training sequence acquisition device can carry out cyclic shift to the conventional training sequence of N groups according to the following formula, at least one set of alternative sequence is obtained：

circshift(n, m) = circshift((5.,, S), m)

~ i^Ntr-m, S Ntr -1 ' ' ' ' ' ' ' ^ Ntr-m-1)

Wherein, TSC is conventional training sequence, and M is the sequence digit of conventional training sequence, l m<M-1, and m is integer, N is positive integer.

So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, training sequence acquisition device can carry out cyclic shift to the training sequence of 3 groups of conventional Stochastic accessing bursts, the digit span of cyclic shift is 1 ~ 40, -120 groups of alternative sequences are obtained altogether.

Or, training sequence acquisition device is also an option that sequence based at least one set in the conventional training sequence of N groups；And cyclic shift is carried out to the basic sequence according to the following formula, obtain at least one set of alternative sequence：

circshift(n, m) = circshift((5.,, S), m)

~ i^Ntr-m, ^Ntr-l ' ' ' " ' ' ^ Ntr-m-1)

Wherein, the sequence digit of sequence based on sequence based on TSC, M, l m M-l, and m are prime number, and N is positive integer.

Exemplified by the same training sequence by 3 groups of 41 Stochastic accessing bursts conventional to gsm system expands, for further cylinder calculation procedure, reduce the calculating time, sequence based on training sequence acquisition device can only select one group or two groups in 3 groups of conventional training sequences, and cyclic shift acquisition alternative sequence is carried out to basic sequence.

Wherein, it can be randomly choosed during sequence based at least one set in the conventional training sequence of selection One group in N group conventional training sequences, can also select that correlation is best in the N group conventional training sequences one group.Such as, sequence based on training sequence acquisition device can randomly choose one group in conventional N group training sequences, can also be to digit progress cyclic shift of the conventional N groups training sequence according to 1 ~ M-1, and calculate the cross correlation between every group of training sequence alternative sequence that each cyclic shift is obtained, one group of best training sequence of cross correlation is retrieved as basic sequence, wherein, one group of best training sequence of cross correlation refers to one group of minimum training sequence of the average value of the cross correlation between each alternative sequence that cyclic shift is obtained, or, cross correlation between each alternative sequence that cyclic shift is obtained is being distributed one group of most intensive training sequence at 0 point.

In addition, when carrying out cyclic shift to basic sequence, can be according to odd bits cyclic shift, even bit cyclic shift or prime number position cyclic shift, wherein, according to the small possibility highest of the cross correlation between the alternative sequence of prime number position cyclic shift acquisition and the training sequence of routine, and the alternative sequence according to the acquisition of even bit cyclic shift and the small possibility of the cross correlation between the training sequence of routine are minimum, therefore, in order to further reduce cylinder calculation procedure, reduce hardware resource requirements, reduce the calculating time, cyclic shift only can be carried out according to prime number position to above-mentioned basic sequence.

It is conventional by taking the training sequence of 3 groups of conventional 41 Stochastic accessing bursts of gsm system as an example

The training sequence of 3 groups of Stochastic accessing bursts is as follows：

1st group： (BN8, BN9 -..BN48) =(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0);

2nd group： (BN8, BN9 -..BN48) =(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

3rd group： (BN8, BN9 -..BN48) =(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1).

Training sequence acquisition device carries out cyclic shift to above-mentioned 3 groups of training sequences according to 1 ~ 41 digit first, obtain each self-corresponding alternative sequence of every group of training sequence, and calculate the cross correlation between every group of training sequence alternative sequence that each cyclic shift is obtained, assuming that analysis determines that the cross correlation between the alternative sequence to the 1st group of training sequence cyclic shift acquisition is best, then the 1st group of training sequence is further carried out cyclic shift by training sequence acquisition device according to prime number position, wherein, prime number between 1 ~ 41 has 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 totally 12, 1st group of training sequence is distinguished cyclic shift 2 by training sequence acquisition device, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, obtain 12 groups of alternative sequences.

By above-mentioned steps, method provided in an embodiment of the present invention has foot in the alternative sequence for ensureing to get While enough good correlation, calculation procedure can be further reduced, hardware resource requirements are reduced, the calculating time is saved.

Wherein, the autocorrelation of the sequence of calculation and the method for cross correlation have a lot, such as are calculated according to Pearson came formula, and the method for autocorrelation and cross correlation for the sequence of calculation, the embodiment of the present invention is not specifically limited.

It should be noted that when there is the training sequence of N groups routine, training sequence acquisition device needs to calculate the cross correlation between each sequence in the alternative sequence of acquisition and the conventional training sequence of the N groups respectively.

Such as, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain after 12 groups of alternative sequences, it is necessary to calculate the cross correlation between each sequence in 12 groups of alternative sequences and 3 groups of conventional training sequences respectively.

The processor 006, for detecting whether the alternative sequence meets the first predetermined condition；If the alternative sequence meets first predetermined condition, the alternative sequence is retrieved as the extra training sequence；Wherein, first predetermined condition includes：

The maximum of cross correlation between each sequence that the autocorrelation of the alternative sequence is more than in the first relevance threshold, and the alternative sequence and the conventional training sequence of the N groups is less than the second relevance threshold；And/or, the difference of the maximum of the cross correlation between each sequence in the autocorrelation of the alternative sequence and the alternative sequence and the conventional training sequence of the N groups is more than difference threshold.

The processor 006, is additionally operable to detect whether the alternative sequence meets the second predetermined condition；If the alternative sequence meets second predetermined condition, the alternative sequence is retrieved as the extra training sequence；Wherein, second predetermined condition includes：

The alternative sequence is in preceding a in First ray group, and the alternative sequence is in preceding b in the second sequence group；And/or, the alternative sequence is in preceding c in the 3rd sequence group；A, b and c are less than the group number of the alternative sequence；

The First ray group is that at least one set of alternative sequence is arranged to the sequence group obtained according to the descending order of respective autocorrelation；

The second sequence group be by least one set of alternative sequence according to the ascending order arrangement acquisition of the maximum of the cross correlation between each sequence in respective training sequence conventional with the N groups sequence it is bad ' J groups；

The 3rd sequence group for the maximum of the cross correlation by least one set of alternative sequence according to respective autocorrelation and each between each sequence in the training sequence of N groups routine difference by The sequence group that small order arrangement is obtained is arrived greatly.

Training sequence acquisition device can detect whether the alternative sequence meets the first predetermined condition；If the alternative sequence meets first predetermined condition, the alternative sequence is retrieved as to extra training sequence；Wherein, first predetermined condition includes：

The maximum of correlation between each sequence that the autocorrelation of the alternative sequence is more than in the first relevance threshold, and the alternative sequence training sequence conventional with the N groups is less than the second relevance threshold；And/or, the difference of the maximum of the correlation between each sequence in the autocorrelation of the alternative sequence and the alternative sequence training sequence conventional with the N groups is more than difference threshold.

Training sequence acquisition device can also detect whether the alternative sequence meets the second predetermined condition；If the alternative sequence meets second predetermined condition, the alternative sequence is retrieved as the extra training sequence；Wherein, second predetermined condition includes：The alternative sequence is in preceding a in the First ray group, and the alternative sequence is in preceding b in the second sequence group；And/or, the alternative sequence is in preceding c in the 3rd sequence group；A, b and c are less than the group number of the alternative sequence.

Wherein, First ray group is that at least one set of alternative sequence is arranged to the sequence group obtained according to the descending order of respective autocorrelation；Second sequence group is that at least one set of alternative sequence is arranged to the sequence group obtained according to the ascending order of the maximum of the cross correlation between each sequence in training sequence each conventional with N groups；The sequence group that 3rd sequence group obtains for the descending order arrangement of the difference of the maximum of the cross correlation between each sequence in the training sequence that at least one set of alternative sequence is according to respective autocorrelation and each conventional with N groups.

Specifically, developer can set dependent thresholds to the difference between autocorrelation, cross correlation and/or autocorrelation and cross correlation, the alternative sequence for meeting dependent thresholds can be retrieved as extra training sequence by training sequence acquisition device.By taking the training sequence of 3 groups of conventional 41 Stochastic accessing bursts of gsm system as an example, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain 12 groups of alternative sequences, and after calculating cross correlation and respective autocorrelation in 3 groups of training sequences of 12 groups of alternative sequences and routine between each sequence respectively, autocorrelation can be more than the first relevance threshold, and the maximum of the cross correlation between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence less than the training sequence of the second relevance threshold；Or, the difference of the maximum for the correlation that training sequence acquisition device can be by autocorrelation and between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence more than the alternative sequence of difference threshold；Or, autocorrelation can also be more than the first relevance threshold by training sequence acquisition device, the maximum of the cross correlation between each sequence in 3 groups of conventional training sequences Difference less than the second relevance threshold, and the maximum of autocorrelation and the correlation between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence more than the alternative sequence of difference threshold.

Or, training sequence acquisition device can also be ranked up according to autocorrelation and cross correlation to alternative sequence, and most forward by sorting, i.e. the best one or more groups of alternative sequences of correlation are retrieved as extra training sequence.Exemplified by the training sequence of same 3 groups of 41 Stochastic accessing bursts conventional by gsm system, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain 12 groups of alternative sequences, and calculate respectively this 12 groups it is alternative after, 12 groups of alternative sequences are descending according to respective autocorrelation respectively, each the maximum of the correlation between each sequence in 3 groups of conventional training sequences is ascending, and the descending order of difference of respective autocorrelation and respective maximum of the correlation between each sequence in 3 groups of conventional training sequences is arranged, obtain three sequence groups.Training sequence acquisition device can be by preceding a in first sequence group, and the alternative sequence of preceding b being in second sequence group is retrieved as extra training sequence；Or, the alternative sequence of preceding c in the 3rd sequence group can be retrieved as extra training sequence by training sequence acquisition device；Or, training sequence acquisition device can be by preceding a in first sequence group, preceding b in second sequence group, and the alternative sequence of preceding c being in the 3rd sequence group is retrieved as extra training sequence；Wherein, a, b and c value are less than 12.

In actual applications, above-mentioned first relevance threshold, the second relevance threshold, difference threshold and a, bright embodiment are not specifically limited.

The extra training sequence includes at least one set in following three groups of sequences：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1

0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

In actual applications, GSM systems can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

Another sunset is foretold, and the embodiment of the present invention is only with 3 group 41 Stochastic accessing bursts conventional to gsm system Training sequence expanded exemplified by illustrate, but the application of method shown in the embodiment of the present invention is not limited and this, for training sequence higher to correlation requirement in the other type training sequences or different system in homologous ray, method provided in an embodiment of the present invention is equally applicable.The embodiment of the present invention is not specifically limited for the application of shown method.

In summary, training sequence acquisition device provided in an embodiment of the present invention, by carrying out cyclic shift to conventional training sequence, obtain at least one set of alternative sequence, and extra training sequence is obtained according to the cross correlation between the autocorrelation of the alternative sequence and the alternative sequence and conventional training sequence, from good relationship sequence as extra training sequence, reach the purpose for the matching accuracy for ensureing training sequence after extra training sequence is expanded；In addition, training sequence acquisition device provided in an embodiment of the present invention, pass through sequence based on the selection at least one set from conventional N group training sequences, and alternative sequence is obtained according to prime number position cyclic shift to basic sequence, while ensureing that the alternative sequence that gets has correlation good enough, calculation procedure can be further reduced, hardware resource requirements are reduced, the calculating time is saved.In order to which the acquisition methods to the extra training sequence in above-mentioned training sequence matching system are further described, Figure 18 is referred to, the method flow diagram of the training sequence acquisition methods provided it illustrates one embodiment of the invention.This method can be used for obtaining extra training sequence, to expand conventional training sequence.This method can include：

Step 1802, cyclic shift is carried out to conventional training sequence, obtains at least one set of alternative sequence；Step 1804, the autocorrelation of the alternative sequence is calculated；

Step 1806, the cross correlation between the training sequence of the alternative sequence and routine is calculated；Step 1808, extra training sequence is obtained according to the cross correlation between the training sequence of the autocorrelation of the alternative sequence and the alternative sequence and routine.

In summary, training sequence acquisition methods provided in an embodiment of the present invention, by carrying out cyclic shift to conventional training sequence, obtain at least one set of alternative sequence, and extra training sequence is obtained according to the cross correlation between the autocorrelation of the alternative sequence and the alternative sequence and conventional training sequence, from good relationship sequence as extra training sequence, reach the purpose for the matching accuracy for ensureing training sequence after extra training sequence is expanded.In order to which the training sequence acquisition methods shown in above-mentioned Figure 18 are described in further detail, Figure 19 is referred to, the method flow diagram of the training sequence acquisition methods provided it illustrates another embodiment of the present invention.So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, the instruction Practicing retrieval method can include：

Step 1902, training sequence acquisition device carries out cyclic shift to conventional training sequence, obtains at least one set of alternative sequence；

Communication system is higher to the correlation requirement of training sequence, by taking gsm system as an example, burst is during transmission information, due to factors such as channel disturbances, training sequence in burst is inevitably distorted, therefore, the sequence that receiving device is extracted from the burst received is often not quite identical with sending the training sequence that equipment is added in burst, now, receiving device is needed to be matched the sequence extracted from the burst received with conventional training sequence, the training sequence added according to matching result judgement transmission equipment in burst is specifically which bad l of group sequence in conventional training sequence.To make the accuracy of judgement sufficiently high, then need the cross correlation between conventional each group training sequence small as far as possible, and autocorrelation is big as far as possible.Similarly, to expand conventional training sequence, extra training sequence is increased, then the cross correlation between the extra training sequence and each conventional training sequence is also required to small as far as possible.

Because the cross correlation between conventional training sequence is very small, the alternative sequence got based on conventional training sequence, the small possibility of its cross correlation between each conventional training sequence is very high.Therefore, the embodiment of the present invention obtains alternative sequence based on conventional training sequence, and relative to all possible alternative sequence or random selection alternative sequence is traveled through, while cylinder calculation procedure, its correlation is often more preferable.In addition, because the signal to noise ratio of conventional training sequence is also good enough, the alternative sequence got based on conventional training sequence, its signal to noise ratio is also sufficient for the requirement of training sequence in theory, therefore, the analysis in terms of method provided in an embodiment of the present invention is also without signal to noise ratio is done to alternative sequence.

Specifically, training sequence acquisition device can carry out cyclic shift to the conventional training sequence of N groups according to the following formula, at least one set of alternative sequence is obtained：

circshift(n, m) = circshift((5.,, S), m)

~ ^Ntr-m, ^Ntr-l ' ' ' ' ' ' ' ^ Ntr-m-1)

Wherein, TSC is conventional training sequence, and M is the sequence digit of conventional training sequence, l m<M-1, and m is integer, N is positive integer.

So that the training sequence of the 3 group 41 Stochastic accessing bursts conventional to gsm system expands as an example, training sequence acquisition device can carry out cyclic shift to the training sequence of 3 groups of conventional Stochastic accessing bursts, the digit span of cyclic shift is 1 ~ 40, -120 groups of alternative sequences are obtained altogether.

Or, training sequence acquisition device is also an option that sequence based at least one set in the conventional training sequence of N groups；And cyclic shift is carried out to the basic sequence according to the following formula, obtain at least one set of alternative sequence Row：

circshift(n, m) = circshift((5.,), m)

~ i^Ntr-m, ^Ntr-l ' ' ' " ' ' ^ Ntr-m-1)

Wherein, the sequence digit of sequence based on sequence based on TSC, M, l m M-l, and m are prime number, and N is positive integer.

Exemplified by the same training sequence by 3 groups of 41 Stochastic accessing bursts conventional to gsm system expands, for further cylinder calculation procedure, reduce the calculating time, sequence based on training sequence acquisition device can only select one group or two groups in 3 groups of conventional training sequences, and cyclic shift acquisition alternative sequence is carried out to basic sequence.

Wherein, one group in N group conventional training sequences can be randomly choosed during sequence based at least one set of in the conventional training sequence of selection, can also select that correlation is best in the N group conventional training sequences one group.Such as, sequence based on training sequence acquisition device can randomly choose one group in conventional N group training sequences, can also be to digit progress cyclic shift of the conventional N groups training sequence according to 1 ~ M-1, and calculate the cross correlation between every group of training sequence alternative sequence that each cyclic shift is obtained, one group of best training sequence of cross correlation is retrieved as basic sequence, wherein, one group of best training sequence of cross correlation refers to one group of minimum training sequence of the average value of the cross correlation between each alternative sequence that cyclic shift is obtained, or, cross correlation between each alternative sequence that cyclic shift is obtained is being distributed one group of most intensive training sequence at 0 point.

In addition, when carrying out cyclic shift to basic sequence, can be according to odd bits cyclic shift, even bit cyclic shift or prime number position cyclic shift, wherein, according to the small possibility highest of the cross correlation between the alternative sequence of prime number position cyclic shift acquisition and the training sequence of routine, and the alternative sequence according to the acquisition of even bit cyclic shift and the small possibility of the cross correlation between the training sequence of routine are minimum, therefore, in order to further reduce cylinder calculation procedure, reduce hardware resource requirements, reduce the calculating time, cyclic shift only can be carried out according to prime number position to above-mentioned basic sequence.

By taking the training sequence of 3 groups of conventional 41 Stochastic accessing bursts of gsm system as an example, the training sequence of 3 groups of conventional Stochastic accessing bursts is as follows：

1st group： (BN8, BN9 -..BN48) =(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0);

2nd group： (BN8, BN9 -..BN48) =(0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1);

3rd group： (BN8, BN9 -..BN48) =(1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1)。

Training sequence acquisition device carries out cyclic shift to above-mentioned 3 groups of training sequences according to 1 ~ 41 digit first, obtain each self-corresponding alternative sequence of every group of training sequence, and calculate the cross correlation between every group of training sequence alternative sequence that each cyclic shift is obtained, assuming that analysis determines that the cross correlation between the alternative sequence to the 1st group of training sequence cyclic shift acquisition is best, then the 1st group of training sequence is further carried out cyclic shift by training sequence acquisition device according to prime number position, wherein, prime number between 1 ~ 41 has 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 totally 12, 1st group of training sequence is distinguished cyclic shift 2 by training sequence acquisition device, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, obtain 12 groups of alternative sequences.

By above-mentioned steps, method provided in an embodiment of the present invention can further reduce calculation procedure, reduce hardware resource requirements, saving calculating time while ensureing that the alternative sequence that gets has correlation good enough.

Step 1904, training sequence acquisition device calculates the cross correlation between the autocorrelation and the alternative sequence of the alternative sequence and the training sequence of routine；

Wherein, the autocorrelation of the sequence of calculation and the method for cross correlation have a lot, such as are calculated according to Pearson came formula, and the method for autocorrelation and cross correlation for the sequence of calculation, the embodiment of the present invention is not specifically limited.

It should be noted that when there is the training sequence of N groups routine, training sequence acquisition device needs the cross-correlation calculated respectively between each sequence in the alternative sequence of acquisition and the conventional training sequence of the N groups to give birth to.

Such as, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain after 12 groups of alternative sequences, it is necessary to calculate the cross correlation between each sequence in 12 groups of alternative sequences and 3 groups of conventional training sequences respectively.

Step 1906, training sequence acquisition device obtains extra training sequence according to the cross correlation between the autocorrelation of the alternative sequence and the alternative sequence and conventional training sequence.

Training sequence acquisition device can detect whether the alternative sequence meets the first predetermined condition；If the alternative sequence meets first predetermined condition, the alternative sequence is retrieved as to extra training sequence；Wherein, first predetermined condition includes：

The maximum of correlation between each sequence that the autocorrelation of the alternative sequence is more than in the first relevance threshold, and the alternative sequence training sequence conventional with the N groups is less than the second relevance threshold；And/or, each sequence in the autocorrelation of the alternative sequence and the alternative sequence training sequence conventional with the N groups Between correlation maximum difference be more than difference threshold.

Training sequence acquisition device can also detect whether the alternative sequence meets the second predetermined condition；If the alternative sequence meets second predetermined condition, the alternative sequence is retrieved as the extra training sequence；Wherein, second predetermined condition includes：The alternative sequence is in preceding a in the First ray group, and the alternative sequence is in preceding b in the second sequence group；And/or, the alternative sequence is in preceding c in the 3rd sequence group；A, b and c are less than the group number of the alternative sequence.

Wherein, First ray group is that at least one set of alternative sequence is arranged to the sequence group obtained according to the descending order of respective autocorrelation；Second sequence group is that at least one set of alternative sequence is arranged to the sequence group obtained according to the ascending order of the maximum of the cross correlation between each sequence in training sequence each conventional with N groups；The sequence group that 3rd sequence group obtains for the descending order arrangement of the difference of the maximum of the cross correlation between each sequence in the training sequence that at least one set of alternative sequence is according to respective autocorrelation and each conventional with N groups.

Specifically, developer can set dependent thresholds to the difference between autocorrelation, cross correlation and/or autocorrelation and cross correlation, the alternative sequence for meeting dependent thresholds can be retrieved as extra training sequence by training sequence acquisition device.By taking the training sequence of 3 groups of conventional 41 Stochastic accessing bursts of gsm system as an example, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain 12 groups of alternative sequences, and after calculating cross correlation and respective autocorrelation in 3 groups of training sequences of 12 groups of alternative sequences and routine between each sequence respectively, autocorrelation can be more than the first relevance threshold, and the maximum of the cross correlation between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence less than the training sequence of the second relevance threshold；Or, the difference of the maximum for the correlation that training sequence acquisition device can be by autocorrelation and between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence more than the alternative sequence of difference threshold；Or, autocorrelation can also be more than the first relevance threshold by training sequence acquisition device, the maximum of cross correlation between each sequence in 3 groups of conventional training sequences is less than the second relevance threshold, and the difference of the maximum of autocorrelation and the correlation between each sequence in 3 groups of conventional training sequences is retrieved as extra training sequence more than the alternative sequence of difference threshold.

Or, training sequence acquisition device can also be ranked up according to autocorrelation and cross correlation to alternative sequence, and most forward by sorting, i.e. the best one or more groups of alternative sequences of correlation are retrieved as extra training sequence.Exemplified by the training sequence of same 3 groups of 41 Stochastic accessing bursts conventional by gsm system, the 1st group of training sequence in the training sequence of 3 groups of 41 Stochastic accessing bursts is carried out cyclic shift by training sequence acquisition device according to prime number position, obtain 12 groups of alternative sequences, and calculate respectively this 12 groups it is alternative Afterwards, 12 groups of alternative sequences are descending according to respective autocorrelation respectively, each the maximum of the correlation between each sequence in 3 groups of conventional training sequences is ascending, and the descending order of difference of respective autocorrelation and respective maximum of the correlation between each sequence in 3 groups of conventional training sequences is arranged, three sequence groups of acquisition.Training sequence acquisition device can be by preceding a in first sequence group, and the alternative sequence of preceding b being in second sequence group is retrieved as extra training sequence；Or, the alternative sequence of preceding c in the 3rd sequence group can be retrieved as extra training sequence by training sequence acquisition device；Or, training sequence acquisition device can be by preceding a in first sequence group, preceding b in second sequence group, and the alternative sequence of preceding c being in the 3rd sequence group is retrieved as extra training sequence；Wherein, a, b and c value are less than 12.

In actual applications, above-mentioned first relevance threshold, the second relevance threshold, difference threshold and a, bright embodiment are not specifically limited.

By taking the training sequence of 3 groups of conventional 41 Stochastic accessing bursts of gsm system as an example, the embodiment of the present invention obtains the best sequence of following three groups of correlations by the above method：

(0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1 0, 0, 0, 1, 1, 1, 1, 0, 0);

(0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1 0, 1, 0, 0, 0, 1, 1, 1, 1);

(1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1);Three groups of sequences distinguish loopy moving 1,3 and 31 acquisitions by first group of conventional training sequence.

In actual applications, GSM systems can select at least one set of sequence in the best sequence of above-mentioned three groups of correlations as extra training sequence, and receiving device knows the extra training sequence altogether with equipment is sent.

Another sunset is foretold, the embodiment of the present invention is only illustrated so that the training sequence of 3 groups of 41 Stochastic accessing bursts conventional to gsm system expands as an example, but the application of method shown in the embodiment of the present invention is not limited and this, for training sequence higher to correlation requirement in the other type training sequences or different system in homologous ray, method provided in an embodiment of the present invention is equally applicable.The embodiment of the present invention is not specifically limited for the application of shown method.

In summary, training sequence acquisition methods provided in an embodiment of the present invention, by conventional training sequence Row carry out cyclic shift, obtain at least one set of alternative sequence, and extra training sequence is obtained according to the cross correlation between the autocorrelation of the alternative sequence and the alternative sequence and conventional training sequence, from good relationship sequence as extra training sequence, reach the purpose for the matching accuracy for ensureing training sequence after extra training sequence is expanded；In addition, method provided in an embodiment of the present invention, pass through sequence based on the selection at least one set from conventional N group training sequences, and alternative sequence is obtained according to prime number position cyclic shift to basic sequence, while ensureing that the alternative sequence that gets has correlation good enough, calculation procedure can be reduced, hardware resource requirements are reduced, the calculating time is saved.One of ordinary skill in the art will appreciate that realizing all or part of step of above-described embodiment can be completed by hardware, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable recording medium, storage medium mentioned above can be read-only storage, disk or CD etc..Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (20)

1. Claims

   1st, a kind of receiving device, it is characterised in that the receiving device includes：

   Receiving module, the burst that equipment is sent is sent for receiving at least one；

   Extraction module, for extracting sequence to be matched in the burst that is received from the receiving module；First acquisition module, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

   Matching module, the conventional training sequence and the extra training sequence that sequence to be matched and first acquisition module for the extraction module to be extracted are got is matched.

   2nd, receiving device according to claim 1, it is characterised in that the extra training sequence includes at least one set in following three groups of sequences：

   (0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0);

   (0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1);

   (1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

   3rd, receiving device according to claim 1 or 2, it is characterised in that

   The receiving module, the Stochastic accessing burst that equipment and the second transmission equipment are sent respectively in same time slot is sent for receiving first；

   Wherein, at least one described transmission equipment includes the described first transmission equipment and the second transmission equipment, and the burst is Stochastic accessing burst.

   4th, receiving device according to claim 3, it is characterised in that first acquisition module, including：

   First acquisition unit, for obtaining the conventional training sequence and the extra training sequence that prestore；

   Second acquisition unit, for obtaining the conventional training sequence prestored； First circulation unit, for being the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

   5th, a kind of receiving device, it is characterised in that the receiving device includes：Receiver and processor；The receiver, the burst that equipment is sent is sent for receiving at least one；

   The processor, for extracting sequence to be matched in the burst that is received from the receiver；The processor, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

   The processor, is additionally operable to be matched the sequence to be matched with the conventional training sequence and the extra training sequence.

   6th, receiving device according to claim 5, it is characterised in that the extra training sequence includes at least one set in following three groups of sequences：

   (0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1,

   0, 0, 0, 1, 1, 1, 1, 0, 0);

   (0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1);

   (1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

   7th, the receiving device according to claim 5 or 6, it is characterised in that

   The receiver, the Stochastic accessing burst that equipment and the second transmission equipment are sent respectively in same time slot is sent for receiving first；

   Wherein, at least one described transmission equipment includes the described first transmission equipment and the second transmission equipment, and the burst is Stochastic accessing burst.

   8th, receiving device according to claim 7, it is characterised in that the receiving device also includes：Memory；The extra training sequence； The processor, is additionally operable to the conventional training sequence cyclic shift predetermined figure that will be prestored, and is the extra training sequence by the retrieval after cyclic shift.9th, it is a kind of to send equipment, it is characterised in that the transmission equipment includes：

   Second acquisition module, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

   Selecting module, for selecting one group of training sequence from multigroup training sequence that second acquisition module is got；

   Add module, the training sequence for the selecting module to be selected is added in burst to be sent；Receiving unit, sequence to be matched is extracted by the receiving device from the burst, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

   10th, transmission equipment according to claim 9, it is characterised in that the extra training sequence includes at least one set in following three groups of sequences：

   (0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0);

   (0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1);

   (1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1)。

   11st, the transmission equipment according to claim 9 or 10, it is characterised in that the selecting module, including：

   First choice unit, for when the burst for first access when Stochastic accessing burst when, one group of training sequence is randomly choosed from multigroup training sequence；

   Second selecting unit, for when the burst for first access when Stochastic accessing burst when, preassigned one group of training sequence is selected from multigroup training sequence； 3rd selecting unit, during for Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when one group is selected from multigroup training sequence with last access.12nd, transmission equipment according to claim 11, it is characterised in that second acquisition module, including：

   3rd acquiring unit, for obtaining the conventional training sequence and the extra training sequence that prestore；

   4th acquiring unit, for obtaining the conventional training sequence prestored；

   Second circulation unit, for being the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

   13rd, it is a kind of to send equipment, it is characterised in that the transmission equipment includes：Processor and emitter；The processor, for obtaining multigroup training sequence, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；

   The processor, for selecting one group of training sequence from the multigroup training sequence got；The processor, for the training sequence selected to be added in burst to be sent；The processor, receiving device is sent to for controlling the emitter by the burst added with the training sequence selected, sequence to be matched is extracted from the burst by the receiving device, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

   14th, transmission equipment according to claim 13, it is characterised in that the extra training sequence includes at least one set in following three groups of sequences：

   (0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0);

   (0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1);

   (1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,

   1, 0, 0, 1, 0, 1, 1, 0, 1)。 15th, the transmission equipment according to claim 13 or 14, it is characterised in that

   The processor, for when the burst for first access when Stochastic accessing burst when, one group of training sequence is randomly choosed from multigroup training sequence；Or, preassigned one group of training sequence is selected from multigroup training sequence；

   The processor, during for Stochastic accessing burst when the burst is accesses again, the training sequence that selected training sequence is different when one group is selected from multigroup training sequence with last access.16th, transmission equipment according to claim 15, it is characterised in that the transmission equipment also includes：Memory；The extra training sequence；The processor, is additionally operable to the conventional training sequence cyclic shift predetermined figure that will be prestored, and is the extra training sequence by the retrieval after cyclic shift.

   17th, a kind of training sequence matching process, it is characterised in that methods described includes：

   Receive at least one and send the burst that equipment is sent, sequence to be matched is extracted from the burst；

   Multigroup training sequence is obtained, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；The sequence to be matched is matched with the conventional training sequence and the extra training sequence got.

   18th, method according to claim 17, it is characterised in that the extra training sequence includes at least one set in following three groups of sequences：

   (0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0);

   (0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1,

   0, 1, 0, 0, 0, 1, 1, 1, 1); (1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 1, 0, 0, 1, 0, 1, 1, 0, 1)。

   19th, the method according to claim 17 or 18, it is characterised in that at least one described transmission equipment includes first and sends equipment and the second transmission equipment, and the burst is Stochastic accessing burst；Described burst for receiving at least one transmission equipment transmission, including：

   Receive the Stochastic accessing burst that the first transmission equipment and the second transmission equipment are sent respectively in same time slot.20th, method according to claim 19, it is characterised in that the multigroup training sequence of acquisition, including：

   Obtain the conventional training sequence and the extra training sequence prestored；

   Or,

   Obtain the conventional training sequence prestored；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

   21st, a kind of training sequence matching process, it is characterised in that methods described includes：

   Multigroup training sequence is obtained, multigroup training sequence includes conventional training sequence and extra training sequence, and the extra training sequence is the sequence that cyclic shift acquisition is carried out to the conventional training sequence；One group of training sequence is selected from the multigroup training sequence got；

   The training sequence selected is added in burst to be sent；Receiving device extracts sequence to be matched from the burst, and conventional training sequence and extra training sequence that the sequence to be matched and the receiving device are got are matched.

   22nd, method according to claim 21, it is characterised in that the extra training sequence includes at least one set in following three groups of sequences：

   (0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0);

   (0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0,1, 1, 0, 1, 0, 1,

   0, 1, 0, 0, 0, 1, 1, 1, 1); (1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 1, 0, 0, 1, 0, 1, 1, 0, 1)。

   23rd, the method according to claim 21 or 22, it is characterised in that

   It is described to select one group of training sequence from the multigroup training sequence got during Stochastic accessing burst when the burst is accesses first, including：

   One group of training sequence is randomly choosed from multigroup training sequence；Or, preassigned one group of training sequence is selected from multigroup training sequence；

   It is described to select one group of training sequence from the multigroup training sequence got during Stochastic accessing burst when the burst is accesses again, including：

   The training sequence that selected training sequence is different when one group is selected from multigroup training sequence from last time access.

   24th, method according to claim 23, it is characterised in that the multigroup training sequence of acquisition, including：

   Obtain the conventional training sequence and the extra training sequence prestored；

   Or,

   Obtain the conventional training sequence prestored；It is the extra training sequence by the retrieval after cyclic shift by the conventional training sequence cyclic shift predetermined figure prestored.

   25th, a kind of training sequence matching system, it is characterised in that the system includes：

   Receiving device as described in above-mentioned claim 1-8 is any and at least one transmission equipment as described in above-mentioned claim 9-16 is any.