CN108418646A

CN108418646A - Sending method, method of reseptance, relevant device and the system of synchronous access signal group

Info

Publication number: CN108418646A
Application number: CN201710073848.0A
Authority: CN
Inventors: 李建军
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-02-10
Filing date: 2017-02-10
Publication date: 2018-08-17
Anticipated expiration: 2037-02-10
Also published as: WO2018145531A1; CN108418646B

Abstract

The present invention provides a kind of sending method, method of reseptance, relevant device and the system of synchronous access signal group, and this method includes：In first time resource, the PSS is sent using first antenna port；In the second time resource, the SSS is sent using first antenna port and/or the second antenna port；In third time resource, the PBCH signals are sent using first antenna port and the second antenna port；In the 4th time resource, the PSS is sent again using first antenna port；In the 5th time resource, the SSS is sent again using the second antenna port and/or first antenna port.The embodiment of the present invention repeatedly sends PSS and SSS, can improve the detection performance of PSS and SSS.

Description

Sending method, method of reseptance, relevant device and the system of synchronous access signal group

Technical field

The present invention relates to field of communication technology more particularly to a kind of synchronous access sending method of signal group, method of reseptance, Relevant device and system.

Background technology

In a communications system, user terminal needs to detect primary synchronization signal (PSS, Primary when being initially accessed Synchronization Signal), subsynchronous signal (SSS, Secondary Synchronization Signal) come it is real Then the now initial time and Frequency Synchronization detects Physical Broadcast Channel (PBCH, Physical Broadcast Channel) Signal.

However, existing network side equipment usually using an antenna port, sends a PSS and SSS respectively, user is whole End carries out Sequence Detection, causes the detection performance of PSS and SSS poor.

Invention content

The embodiment of the present invention provides a kind of sending method, method of reseptance, relevant device and the system of synchronous access signal group, Detection performance to solve the problems, such as PSS and SSS is poor.

In a first aspect, an embodiment of the present invention provides a kind of sending method of synchronous access signal group, the synchronous access Signal group includes PSS, SSS and PBCH signal, the method includes：

In first time resource, the PSS is sent using first antenna port；

In the second time resource, the SSS is sent using first antenna port and/or the second antenna port；

In third time resource, the PBCH signals are sent using first antenna port and the second antenna port；

In the 4th time resource, the PSS is sent again using first antenna port；

In the 5th time resource, the SSS is sent again using the second antenna port and/or first antenna port.

Second aspect, the embodiment of the present invention also provide a kind of method of reseptance of synchronous access signal group, the synchronous access Signal group includes PSS, SSS and PBCH signal, the method includes：

In first time resource, PSS described in third antenna Port detecting is used；

In the second time resource the SSS is detected using third antenna port and/or the 4th antenna port；

In the 4th time resource, PSS described in third antenna Port detecting is reused；

In the 5th time resource, the 4th antenna port and/or third antenna port are reused, detects the SSS；

Using the PSS and the SSS detected, time and Frequency Synchronization are carried out；

Using the SSS progress channel estimation is detected, channel estimation results are obtained；

It is examined using third antenna port and the 4th antenna port using the channel estimation results in third time resource Survey the PBCH signals.

The third aspect, the embodiment of the present invention also provide a kind of network side equipment, for the transmission of synchronous access signal grade, institute It includes PSS, SSS and PBCH signal to state synchronous access signal group, and the network side equipment includes：

First sending module, in first time resource, the PSS to be sent using first antenna port；

Second sending module, in the second time resource, being sent using first antenna port and/or the second antenna port The SSS；

Third sending module, in third time resource, institute to be sent using first antenna port and the second antenna port State PBCH signals；

4th sending module, in the 4th time resource, the PSS to be sent again using first antenna port；

5th sending module, in the 5th time resource, again using the second antenna port and/or first antenna port Send the SSS.

Fourth aspect, the embodiment of the present invention also provide a kind of user terminal, described for the reception of synchronous access signal group Synchronous access signal group includes PSS, SSS and PBCH signal, and the user terminal includes：

First detection module, in first time resource, using PSS described in third antenna Port detecting；

Second detection module, in the second time resource, using third antenna port and/or the 4th antenna port, inspection Survey the SSS；

Third detection module, in the 4th time resource, reusing PSS described in third antenna Port detecting；

4th detection module, in the 5th time resource, reusing the 4th antenna port and/or third antenna end Mouthful, detect the SSS；

Synchronization module, for using the PSS and the SSS detected, carrying out time and Frequency Synchronization；

Estimation module, for using the SSS progress channel estimation is detected, obtaining channel estimation results；

5th detection module, for using third antenna port using the channel estimation results in third time resource The PBCH signals are detected with the 4th antenna port.

In this way, in the embodiment of the present invention, in first time resource, the PSS is sent using first antenna port；Second Time resource sends the SSS using first antenna port and/or the second antenna port；In third time resource, first is used Antenna port and the second antenna port send the PBCH signals；In the 4th time resource, sent out again using first antenna port Send the PSS；In the 5th time resource, the SSS is sent again using the second antenna port and/or first antenna port, by In repeatedly sending PSS and SSS, to improve the detection performance and the synchronization accuracy of time and frequency of PSS and SSS, save The expense of pilot signal, improves the spectrum utilization efficiency of system.

Description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, For those of ordinary skill in the art, without having to pay creative labor, it can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is a kind of structure chart of the Transmission system of synchronous access signal group；

Fig. 2 is a kind of flow chart of the sending method for synchronous access signal group that first embodiment of the invention provides；

Fig. 3 is a kind of flow chart of the sending method for synchronous access signal group that second embodiment of the invention provides；

Fig. 4 is a kind of transmission schematic diagram for synchronous access signal group that second embodiment of the invention provides；

Fig. 5 is a kind of flow chart of the sending method for synchronous access signal group that third embodiment of the invention provides；

Fig. 6 is a kind of transmission schematic diagram for synchronous access signal group that third embodiment of the invention provides；

Fig. 7 is a kind of flow chart of the sending method for synchronous access signal group that fourth embodiment of the invention provides；

Fig. 8 is the transmission schematic diagram for the synchronous access signal group of another kind that fourth embodiment of the invention provides；

Fig. 9 is a kind of flow chart of the method for reseptance for synchronous access signal group that fifth embodiment of the invention provides；

Figure 10 is a kind of flow chart of the method for reseptance for synchronous access signal group that sixth embodiment of the invention provides；

Figure 11 is a kind of flow chart of the method for reseptance for synchronous access signal group that seventh embodiment of the invention provides；

Figure 12 is a kind of flow chart of the method for reseptance for synchronous access signal group that eighth embodiment of the invention provides；

Figure 13 is the structure chart for the network side equipment that ninth embodiment of the invention provides；

Figure 14 is the structure chart for the user terminal that tenth embodiment of the invention provides；

Figure 15 is the structure chart for the network side equipment that eleventh embodiment of the invention provides；

Figure 16 is the structure chart for the user terminal that twelveth embodiment of the invention provides.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts Example, shall fall within the protection scope of the present invention.

Referring to Fig. 1, Fig. 1 is a kind of applicable structure of the Transmission system of synchronous access signal group of the embodiment of the present invention Figure, as shown in Figure 1, including user terminal 11 and network side equipment 12, wherein user terminal 11 can be UE (User Equipment), such as：Can be mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, abbreviation PDA), mobile Internet access dress The terminal side equipments such as (Mobile Internet Device, MID) or wearable device (Wearable Device) are set, are needed It is noted that not limiting the concrete type of user terminal 11 in embodiments of the present invention.User terminal 11 can be with network Side apparatus 12 establishes communication, wherein it is logical that the network in attached drawing can indicate that user terminal 11 is wirelessly established with network side equipment 12 Letter, network side equipment 12 can be transmission receiving point (TRP, Transmission Reception Point), or can be Base station, base station can be macro station, such as LTE eNB, 5G NR NB.Or network side equipment 12 can be access point (AP, access point)。

It should be noted that not limiting the concrete type of network side equipment 12, user terminal in embodiments of the present invention 11 and the concrete function of network side equipment 12 will be specifically described by following multiple embodiments.

First embodiment

It is a kind of flow chart of the sending method of synchronous access signal group provided in an embodiment of the present invention referring to Fig. 2, Fig. 2, Wherein, synchronization access signal group includes PSS, SSS and PBCH signal, as shown in Fig. 2, including the following steps：

Step 201, in first time resource, use first antenna port to send the PSS.

Wherein, above-mentioned first time resource can be one or more orthogonal frequency in a certain subframe or a slot Multiplexing technology (Orthogonal Frequency Division Multiplexing, OFDM) symbol.In addition, in step 201 First antenna port can be any antenna port in the antenna port that network side equipment includes.

Step 202, in the second time resource, use first antenna port and/or the second antenna port to send the SSS.

Above-mentioned second time resource can be one or more OFDM symbol in a certain subframe or a slot.Separately Outside, the SSS is sent using first antenna port and/or the second antenna port, can be used in the second time resource One or two antenna ports in first antenna port and the second antenna port send the SSS.

Step 203, in third time resource, use first antenna port and the second antenna port to send the PBCH letters Number.

Wherein, PBCH signals may include system information, such as：Master Information Block (MIB, Master Information Block), naturally it is also possible to be other systems information, this embodiment of the present invention is not construed as limiting.

Step 204, in the 4th time resource, send the PSS again using first antenna port.

Wherein, the antenna port that step 204 uses can be that the antenna port used with step 201 is the same antenna end Mouthful.

Step 205, in the 5th time resource, sent again using the second antenna port and/or first antenna port described in SSS。

Wherein, step 205 may refer to the respective description of step 202, but when step 202 is sent using same antenna port When above-mentioned SSS, step 205 can also be to send above-mentioned SSS, but the antenna port that step 205 uses using same antenna port The antenna port used with step 202 can be different antenna port.

PSS and SSS is repeatedly sent through the above steps, to improve the detection performance of PSS and SSS, i.e. user terminal It is more prone to detect PSS and SSS.In addition, user terminal can be after detecting PSS and SSS, it can utilize and to detect PSS and SSS progress times are synchronous with frequency, and can also carry out channel estimation using SSS is detected, obtain channel estimation knot Then fruit detects PBCH signals using the channel estimation results using third antenna port and the 4th antenna port.If PBCH believes When number including system information, user terminal can also demodulate the PBCH signals that detect, obtain system information.Due to directly making Channel estimation is carried out with SSS, so there is no need to transmit cell special reference signal (Cell-specific Reference Signal, CRS), you can to eliminate the expense of CRS, improve spectrum efficiency.

It should be noted that this method can be applied to network side equipment.

It should be noted that can be applied in the embodiment of the present invention extensive multiple-input and multiple-output (MIMO, Multiple-Input Multiple-Out-put) system, global system for mobile communications (GSM, Global can also be applied to System for Mobile Communication) in the scene of millimeter wave band application, and can also be more applied to code point The scene that location (CDMA, Code Division Multiple Access) technology is applied in millimeter wave band.And in GSM or In CDMA scenes in the embodiment of the present invention, repeatedly sent with different antenna ports, to improve the performance of system.

In the embodiment of the present invention, in first time resource, the PSS is sent using first antenna port；In the second time Resource sends the SSS using first antenna port and/or the second antenna port；In third time resource, first antenna is used Port and the second antenna port send the PBCH signals；In the 4th time resource, institute is sent again using first antenna port State PSS；In the 5th time resource, the SSS is sent again using the second antenna port and/or first antenna port.Due to more Secondary transmission PSS and SSS is saved and is led to improve the detection performance and the synchronization accuracy of time and frequency of PSS and SSS The expense of frequency signal improves the spectrum utilization efficiency of system.

Second embodiment

It is the flow of the sending method of another synchronous access signal group provided in an embodiment of the present invention referring to Fig. 3, Fig. 3 Figure, wherein it includes PSS, SSS and PBCH signal that the synchronization, which accesses signal group, as shown in figure 3, including the following steps：

Step 301, in first time resource, use first antenna port to send the PSS.

Wherein, above-mentioned first time resource can be the 1st time resource in a slot or a subframe, such as：The One OFDM symbol, certainly in this regard, the embodiment of the present invention is not construed as limiting.

Step 302, in the second time resource, use first antenna port to send the SSS.

Above-mentioned second time resource can be with the above-mentioned continuous time resource of first time resource, certainly in this regard, this hair Bright embodiment is not construed as limiting.

Step 303, in third time resource, use first antenna port and the second antenna port to send the PBCH letters Number.

Above-mentioned third time resource can be with the above-mentioned continuous time resource of second time resource, certainly in this regard, this hair Bright embodiment is not construed as limiting.

Optionally, described in third time resource, send the PBCH using first antenna port and the second antenna port Signal, including：

In third time resource space-frequency diversity or empty time-division are utilized using first antenna port and the second antenna port The mode of collection sends the PBCH signals.

Wherein, above-mentioned in third time resource, using first antenna port and the second antenna port, using space-frequency diversity or The mode of person's space and time diversity, sending the PBCH signals can be, at least two adjacent sons in third time resource carry At least two PBCH signal codes sent on wave or at least two OFDM symbols carry out precoding, the symbol difference after coding It is sent on first antenna port and the second antenna port.

Such as：It is above-mentioned in third time resource, using first antenna port and the second antenna port, using space-frequency diversity or The mode of person's space and time diversity sends the PBCH signals, including：

Precoding is carried out to the first PBCH information symbols and the 2nd PBCH information symbols, and in third time resource, is used First antenna port and the second antenna port send pre-encoding results.

Such as：I-th of information symbol x (i)=[x of two antenna ports in above-mentioned PBCH signals⁽⁰⁾(i) x⁽¹⁾(i)]^T, By space-frequency diversity or space and time diversity, information symbol y (i)=[y of transmission⁽⁰⁾(i) y⁽¹⁾(i)]^TIt is pre- with PBCH signal codes Encoding operation is as follows：

Wherein, Re expressions take real, Im to indicate to take the empty step of plural number, and j is imaginary unit.

It should be noted that the mode of precoding is only a citing, in the embodiment of the present invention, PBCH signals are not limited Precoding mode.

In the embodiment of the present invention, above-mentioned in the way of space-frequency diversity or space and time diversity, in third time resource Upper transmission PBCH signals, so as to improve the detection performance of PBCH, i.e. user terminal is more prone to detect PBCH signals.

Step 304, in the 4th time resource, send the PSS again using first antenna port.

Step 305, in the 5th time resource, send the SSS again using the second antenna port.

Wherein, above-mentioned 5th time resource can be with the continuous time resource of above-mentioned 4th time resource, certainly in this regard, The embodiment of the present invention is not construed as limiting.

It may be implemented to work as through the above steps in second time resource, first antenna port used to send the SSS When, in the 5th time resource, the SSS is sent again using the second antenna port；

In the embodiment, when may be implemented to send SSS twice, used antenna port is different, to improve letter The performance of road estimation.

Optionally, above-mentioned SSS includes the first random sequence and the second random sequence；

It is described to send the SSS using first antenna port, including：

It using first antenna port, occupies the first default frequency range and sends first random sequence, occupy the second default frequency Section sends second random sequence；

It is described to send the SSS again using the second antenna port, including：

It using the second antenna port, occupies the first default frequency range and sends first random sequence, occupy the second default frequency Section sends second random sequence.

Wherein, above-mentioned first random sequence and the second random sequence can be that network side equipment generates at random, wherein generating Mode can be generated according to preset rules.

In the embodiment, it may be implemented to send out in different frequency resources using same antenna port in the second time resource The first random sequence of SSS is sent, and SSS is sent in different frequency resources using another antenna port in the 5th time resource The second random sequence, and send PBCH signals using two antenna ports in the third time.It thus may be implemented using double Antenna port repeats to send the SSS signals in synchronous access signal group (SS block), the time improved and Frequency Synchronization essence Degree.Then use user terminal carries out channel estimation to detect PBCH signals by the SSS that detects, just eliminate pilot tone letter Number expense.Improve the spectrum utilization efficiency of system.

Such as：As shown in figure 4, a synchronous access signal group (SS block) occupies a time slot (slot) and sends progress Citing, the signal in synchronous access signal group (SS block) are sent using two antenna ports, and PSS and SSS therein will be into Row is sent twice.PSS is sent sent using 1st OFDM symbol of the antenna port 0 in slot for the first time, and PSS is for the second time still So the 6th OFDM symbol using antenna port 0 in slot is sent.That is PSS only uses an antenna port and sends.SSS Primary the 2nd OFDM symbol sent using antenna port 0 in slot is sent, and SSS is sent for the second time to be existed using antenna port 1 The 7th OFDM symbol in slot is sent.That is the antenna port that SSS is used when sending twice is switched.PBCH is then total Be use simultaneously two antenna ports can in the way of space-frequency diversity and space and time diversity the 3rd, 4 and 5 OFDM symbol into Row is sent.The two antenna ports and PSS, the antenna port that SSS is used are identical.Signal structure such as Fig. 4 of entire SS block It is shown.In this way, PBCH can carry out channel estimation by SSS, to just eliminate the expense of CRS, spectrum efficiency is improved.

It should be noted that SSS is made of two random sequences here, random sequence 0 and random sequence 1.SSS is sent out every time Send and occupy an OFDM symbol, wherein sequence 0 with frequency lower Physical Resource Block (Physical Resource Block, PRB) or resource block (Resource Block, RB) is sent, and sequence 1 is sent with the higher PRB of frequency.In this programme, every When SSS transmission, the two sequences are all sent using identical port.

Optionally, in the present embodiment, above-mentioned first default frequency range is less than predetermined threshold value, and above-mentioned second default frequency range is higher than pre- If threshold value.

Wherein, above-mentioned predetermined threshold value can be preconfigured network side equipment or network side equipment and user terminal Negotiate in advance.

Optionally, time resource corresponding with the synchronous access signal group, including the first time resource, described Two time resources, the third time resource, the 4th time resource and the 5th time resource.

In the embodiment, the signal that may be implemented in same synchronous access signal group accesses signal group pair using the synchronization The time resource answered is sent, you can to realize that the signal in different synchronous access signal groups is sent out using different time resources It send, so as to improve the detection performance of synchronous access signal group.

Preferential, time resource corresponding with the synchronous access signal group is time slot (slot), the first time money Source is the 1st OFDM symbol in the slot, and second time resource is the 2nd OFDM symbol in the slot, institute It is the 3rd, 4 and 5 OFDM symbol in the slot to state third time resource, and the 4th time resource is in the slot 6th OFDM symbol, the 5th time resource are the 7th OFDM symbol in the slot.

Such as：One synchronous access signal group occupies a slot and sends, and PSS and SSS therein will be sent twice. The 1st OFDM symbol that PSS sends using antenna port 0 in slot for the first time is sent, and can be in the OFDM symbol It is sent on all resource blocks (Resource Block, RB), second of the 6th sent using antenna port 1 in slot of PSS OFDM symbol is sent.The 2nd OFDM symbol that SSS sends using antenna port 0 and/or 1 in slot for the first time is sent, SSS Second of the 7th OFDM symbol sent using antenna port 1 and/or 0 in slot is sent.And PBCH signals are then always simultaneously It is sent in the 3rd, 4 and 5 OFDM symbol in the way of space-frequency diversity and space and time diversity using two antenna ports.This two A antenna port and PSS, the antenna port that SSS is used are identical.To which PBCH signals can carry out channel estimation by SSS, To just eliminate the expense of CRS, spectrum efficiency is improved.

In the citing, by above-mentioned design, user terminal can by antenna port different in double antenna port, Corresponding OFDM symbol detection synchronizes the above-mentioned PSS and SSS signals in access signal group, realizes that accurate time and frequency are same Step.Then channel estimation is carried out by SSS, PBCH signals is detected with this, to obtaining system information.

In the present embodiment, in first time resource, the PSS is sent using first antenna port；In the second time resource, The SSS is sent using first antenna port；In third time resource, sent using first antenna port and the second antenna port The PBCH signals；In the 4th time resource, the PSS is sent again using first antenna port；In the 5th time resource, make The SSS is sent again with the second antenna port.Due to repeatedly sending PSS and SSS, to improve the detection of PSS and SSS Energy and the synchronization accuracy of time and frequency, save the expense of pilot signal, improve the spectrum utilization efficiency of system.And When due to sending SSS twice, used antenna port is different, to improve the performance of channel estimation.

3rd embodiment

It is the flow of the sending method of another synchronous access signal group provided in an embodiment of the present invention referring to Fig. 5, Fig. 5 Figure, wherein it includes PSS, SSS and PBCH signal that the synchronization, which accesses signal group, as shown in figure 5, including the following steps：

Step 501, in first time resource, use first antenna port to send the PSS.

Step 502, in the second time resource, use the second antenna port to send the SSS.

Step 503, in third time resource, use first antenna port and the second antenna port to send the PBCH letters Number.

Step 504, in the 4th time resource, send the PSS again using first antenna port.

Step 505, in the 5th time resource, send the SSS again using first antenna port.

It may be implemented to work as through the above steps in second time resource, the second antenna port used to send the SSS When, in the 5th time resource, the SSS is sent again using first antenna port.

Optionally, in the embodiment, above-mentioned SSS includes the first random sequence and the second random sequence；

It is described to send the SSS using the second antenna port, including：

It using the second antenna port, occupies the first default frequency range and sends first random sequence, occupy the second default frequency Section sends second random sequence；

It is described to send the SSS again using first antenna port, including：

It using first antenna port, occupies the first default frequency range and sends first random sequence, occupy the second default frequency Section sends second random sequence.

Such as：As shown in fig. 6, a synchronous access signal group (SS block) occupies a time slot (slot) and sends progress Citing, the signal in synchronous access signal group (SS block) are sent using two antenna ports, and PSS and SSS therein will be into Row is sent twice.PSS is sent sent using 1st OFDM symbol of the antenna port 0 in slot for the first time, and PSS is for the second time still So the 6th OFDM symbol using antenna port 0 in slot is sent.That is PSS only uses an antenna port and sends.SSS Primary the 2nd OFDM symbol sent using antenna port 1 in slot is sent, and SSS is sent for the second time to be existed using antenna port 0 The 7th OFDM symbol in slot is sent.That is the antenna port that SSS is used when sending twice is switched.PBCH is then total Be use simultaneously two antenna ports can in the way of space-frequency diversity and space and time diversity the 3rd, 4 and 5 OFDM symbol into Row is sent.The two antenna ports and PSS, the antenna port that SSS is used are identical.Signal structure such as Fig. 6 of entire SS block It is shown.In this way, PBCH can carry out channel estimation by SSS, to just eliminate the expense of CRS, spectrum efficiency is improved.

It should be noted that SSS is made of two random sequences here, random sequence 0 and random sequence 1.SSS is sent out every time It send and occupies an OFDM symbol, wherein sequence 0 is sent with frequency lower PRB or RB, the higher PRB hairs of frequency of sequence 1 It send.In this programme, when SSS each time is sent, the two sequences are all sent using identical port.

In the present embodiment, in first time resource, the PSS is sent using first antenna port；In the second time resource, The SSS is sent using the second antenna port；In third time resource, sent using first antenna port and the second antenna port The PBCH signals；In the 4th time resource, the PSS is sent again using first antenna port；In the 5th time resource, make The SSS is sent again with first antenna port.Due to repeatedly sending PSS and SSS, to improve the detection of PSS and SSS Energy and the synchronization accuracy of time and frequency, save the expense of pilot signal, improve the spectrum utilization efficiency of system.And When due to sending SSS twice, used antenna port is different, to improve the performance of channel estimation.

Fourth embodiment

It is the flow of the sending method of another synchronous access signal group provided in an embodiment of the present invention referring to Fig. 7, Fig. 7 Figure, wherein it includes PSS, SSS and PBCH signal that the synchronization, which accesses signal group, as shown in fig. 7, comprises following steps：

Step 701, in first time resource, use first antenna port to send the PSS.

Step 702, in the second time resource, use first antenna port and the second antenna port to send the SSS.

Step 703, in third time resource, use first antenna port and the second antenna port to send the PBCH letters Number.

Step 704, in the 4th time resource, send the PSS again using first antenna port.

Step 705, in the 5th time resource, send the SSS again using the second antenna port and first antenna port.

Optionally, the SSS includes the first random sequence and the second random sequence；

It is described to send the SSS using first antenna port and/or the second antenna port in the second time resource, including：

It occupies the first default frequency range using first antenna port in the second time resource and sends first random sequence, And the second antenna port is used, it occupies the second default frequency range and sends second random sequence；

It is described to send the SSS again using the second antenna port and/or first antenna port in the 5th time resource, Including：

It occupies the first default frequency range using the second antenna port in the 5th time resource and sends first random sequence, And it using first antenna port, occupies the second default frequency range and sends second random sequence.

In the embodiment, it may be implemented to send out in different frequency resources using different antennae port in the second time resource The first random sequence of SSS is sent, and SSS is sent in different frequency resources using different antennae port in the 5th time resource The second random sequence, and send PBCH signals using two antenna ports in the third time.SSS thus may be implemented every A antenna port all repeats to have sent twice, and above-mentioned second time resource and the 5th time resource can be respectively in a slot Both ends, to substantially increase the performance of channel estimation.In addition, the different frequencies in sending and send for second by first time Rate resource (such as：Low-frequency range and high band) SSS two sequence transmission antenna ports switching, further improve The performance of channel estimation.

Such as：It is lifted as shown in figure 8, occupying a slot transmission with a synchronous access signal group (SS block) Example, the synchronous signal accessed in signal group (SS block) are sent using two antenna ports.PSS and SSS therein will be carried out It sends twice.PSS is sent sent using 1st OFDM symbol of the antenna port 0 in slot for the first time, and PSS is for the second time still It is sent using 6th OFDM symbol of the antenna port 0 in slot.That is PSS only uses an antenna port and sends.SSS first Secondary the 2nd be sent in slot OFDM symbol carries out, and wherein sequence 0 uses antenna port 0 in the lower Physical Resource Block of frequency (Physical Resource Block, PRB) is sent, and sequence 1 is sent with antenna port 1 in the higher PRB of frequency.SSS second Secondary the 7th be sent in slot OFDM symbol carries out, and identical SSS sequences also repeat twice in the OFDM symbol, with the Unlike primary, wherein sequence 0 is sent with antenna port 1 in the lower PRB of frequency, sequence 1 with antenna port 0 frequency compared with High PRB is sent.That is compared with first time sends, the transmission antenna port that each sequence of SSS uses occurs for second of transmission Switching.PBCH then always simultaneously can be in the way of space-frequency diversity and space and time diversity the 3rd, 4 using two antenna ports It is sent with 5 OFDM symbols.The two antenna ports and PSS, the antenna port that SSS is used are identical.Entire SS block Signal structure as shown in figure 8, in this way, PBCH can carry out channel estimation by SSS, to just eliminate the expense of CRS, Improve spectrum efficiency.

In the present embodiment, in first time resource, the PSS is sent using first antenna port；In the second time resource, The SSS is sent using first antenna port and the second antenna port；In third time resource, first antenna port and are used Two antenna ports send the PBCH signals；In the 4th time resource, the PSS is sent again using first antenna port； 5th time resource sends the SSS again using the second antenna port and first antenna port.Due to repeatedly send PSS and SSS saves opening for pilot signal to improve the detection performance and the synchronization accuracy of time and frequency of PSS and SSS Pin, improves the spectrum utilization efficiency of system.And identical double antenna port is used with PBCH signals are sent due to sending SSS It sends, user terminal advantageous in this way detects PBCH signals using the channel estimation of the SSS detected, to improve detection performance.Separately Outside, the first random sequence of SSS can also be sent in different frequency resources using different antennae port in the second time resource, And send the second random sequence of SSS in different frequency resources using different antennae port in the 5th time resource, and The third time sends PBCH signals using two antenna ports.SSS thus may be implemented to repeat to send out in each antenna port It has sent twice, and above-mentioned second time resource and the 5th time resource can be respectively at the both ends of a slot, to carry significantly The high performance of channel estimation.In addition, sending two of the SSS of the different frequency resource in being sent with second by first time The switching of sequence transmission antenna port, further improves the performance of channel estimation.

5th embodiment

It is a kind of flow chart of the method for reseptance of synchronous access signal group provided in an embodiment of the present invention referring to Fig. 9, Fig. 9, Wherein, synchronization access signal group includes PSS, SSS and PBCH signal, as shown in figure 9, this approach includes the following steps：

Step 901, in first time resource, use PSS described in third antenna Port detecting.

User terminal can send the antenna port pair that the PSS is used using with network side equipment in step 901 The antenna port answered detects the PSS on corresponding time resource.Such as：Send PSS for the first time makes in first time resource It is sent with first antenna port, then user terminal can be in first time resource use corresponding with first antenna port the Triantennary Port detecting PSS.

Step 902 detects the SSS in the second time resource using third antenna port and/or the 4th antenna port.

User terminal can send the antenna port pair that the SSS is used using with network side equipment in step 902 The antenna port answered detects the SSS in the frequency resource in corresponding time resource.Such as：SSS is sent for the first time the Two time resources are sent using first antenna port, then user terminal can be used in the second time resource and first antenna The corresponding third antenna Port detecting SSS in port.

Step 903, in the 4th time resource, detect the PSS again using third antenna port.

Step 904, in the 5th time resource, using the 4th antenna port and/or third antenna port, again described in detection SSS。

Step 905, using the PSS and the SSS detected, carry out time and Frequency Synchronization, utilize what is detected The SSS carries out channel estimation, obtains channel estimation results.

When user terminal detects above-mentioned PSS and SSS, so that it may to utilize PSS and SSS, carry out between network side equipment Time it is synchronous with frequency, and when detecting that PSS and SSS user terminals can be carried out channel estimation, to obtain channel Estimated result.

Step 906 uses third antenna port and the 4th day in third time resource using the channel estimation results PBCH signals described in line Port detecting.

Since above-mentioned PSS, SSS and PBCH belong to same synchronous access signal group, so as to use the letter of PSS and SSS Road estimated result detects PBCH.

After detecting PSS and SSS by above-mentioned user terminal, time and frequency can be carried out using the PSS and SSS detected The synchronization of rate, and channel estimation can also be carried out using SSS is detected, it obtains channel estimation results and is then estimated using the channel It counts result and detects PBCH signals using third antenna port and the 4th antenna port.If PBCH signals include system information, use Family terminal can also demodulate the PBCH signals detected, obtain system information.Due to directly SSS being used to carry out channel estimation, So there is no need to transmit CRS, you can to eliminate the expense of CRS, improve spectrum efficiency.

In the embodiment of the present invention, in first time resource, PSS described in third antenna Port detecting is used；In the second time Resource detects the SSS using third antenna port and/or the 4th antenna port；In the 4th time resource, third day is used Line end mouth detects the PSS again；It is examined again using the 4th antenna port and/or third antenna port in the 5th time resource Survey the SSS；Using the PSS and the SSS detected, time and Frequency Synchronization are carried out, the SSS detected is utilized Channel estimation is carried out, channel estimation results are obtained；In third time resource third day is used using the channel estimation results Line end mouth and the 4th antenna port detect the PBCH signals.Due to repeated detection PSS and SSS, to improve PSS and SSS Detection performance and the synchronization accuracy of time and frequency, save the expense of pilot signal, improve the spectrum utilization of system Efficiency.

Sixth embodiment

It is a kind of flow of the method for reseptance of synchronous access signal group provided in an embodiment of the present invention referring to Figure 10, Figure 10 Figure, wherein it includes PSS, SSS and PBCH signal that the synchronization, which accesses signal group, and as shown in Figure 10, this approach includes the following steps：

Step 1001, in first time resource, use PSS described in third antenna Port detecting.

User terminal can send the antenna port pair that the PSS is used using with network side equipment in step 1001 The antenna port answered detects the PSS on corresponding time resource.Such as：Send PSS for the first time makes in first time resource It is sent with first antenna port, then user terminal can be in first time resource use corresponding with first antenna port the Triantennary Port detecting PSS.

Step 1002 detects the SSS in the second time resource using third antenna port.

User terminal can send the antenna port pair that the SSS is used using with network side equipment in step 1002 The antenna port answered detects the SSS in the frequency resource in corresponding time resource.Such as：SSS is sent for the first time the Two time resources are sent using first antenna port, then user terminal can be used in the second time resource and first antenna The corresponding third antenna Port detecting SSS in port.

Step 1003, in the 4th time resource, detect the PSS again using third antenna port.

Step 1004, in the 5th time resource, using the 4th antenna port, detect the SSS again.

Step 1005, using the PSS and the SSS detected, carry out time and Frequency Synchronization, utilize what is detected The SSS carries out channel estimation, obtains channel estimation results.

Step 1006 uses third antenna port and the 4th day in third time resource using the channel estimation results PBCH signals described in line Port detecting.

Wherein, third antenna port is corresponding with the first antenna port of network side equipment, the 4th antenna port and network side Second antenna port of equipment corresponds to, in addition, may refer in first embodiment to fourth embodiment about above-mentioned time resource Respective description, do not repeat herein, and identical advantageous effect can be reached.

SSS described in the use third antenna Port detecting, including：

Using third antenna port, first random sequence is detected by the first default frequency range, passes through the second default frequency Section detects second random sequence；

It is described to detect the SSS again using the 4th antenna port, including：

Using the 4th antenna port, first random sequence is detected by the first default frequency range, passes through the second default frequency Section detects second random sequence.

In the embodiment, it may be implemented to examine in different frequency resources using same antenna port in the second time resource The first random sequence of SSS is surveyed, and SSS is detected in different frequency resources using another antenna port in the 5th time resource The second random sequence, and detect PBCH signals using two antenna ports in the third time.It thus may be implemented using double Antenna port repeats to detect the SSS signals in synchronous access signal group (SS block), the time improved and Frequency Synchronization essence Degree.Then user terminal carries out channel estimation to detect PBCH signals by the SSS detected, just eliminates opening for pilot signal Pin.Improve the spectrum utilization efficiency of system.

Optionally, the described first default frequency range is less than predetermined threshold value, and the second default frequency range is higher than predetermined threshold value.

Optionally, described to use third antenna port and the 4th using the channel estimation results in third time resource Antenna port detects the PBCH signals, including：

In third time resource, led to using third antenna port and the 4th antenna port using the channel estimation results The mode for crossing space-frequency diversity or space and time diversity detects the PBCH signals.

In the embodiment of the present invention, above-mentioned in the way of space-frequency diversity or space and time diversity, in third time resource Upper detection PBCH signals, so as to improve the detection performance of PBCH, i.e. user terminal is more prone to detect PBCH signals.

Optionally, time resource corresponding with the synchronous access signal group is slot, and the first time resource is institute The 1st OFDM symbol in slot is stated, second time resource is the 2nd OFDM symbol in the slot, the third Time resource is the 3rd, 4 and 5 OFDM symbol in the slot, and the 4th time resource is the 6th in the slot OFDM symbol, the 5th time resource are the 7th OFDM symbol in the slot.

Second embodiment is may refer to the respective description of fourth embodiment about above-mentioned time resource, is not gone to live in the household of one's in-laws on getting married herein It states, and identical advantageous effect can be reached.

In the embodiment of the present invention, in first time resource, PSS described in third antenna Port detecting is used；In the second time Resource detects the SSS using third antenna port；In the 4th time resource, detected again using third antenna port described in PSS；In the 5th time resource, using the 4th antenna port, the SSS is detected again；Utilize the PSS that detects and described SSS carries out time and Frequency Synchronization, carries out channel estimation using the SSS detected, obtains channel estimation results； Three time resources detect the PBCH using third antenna port and the 4th antenna port and believe using the channel estimation results Number.Due to repeated detection PSS and SSS, to improve the detection performance and the synchronization accuracy of time and frequency of PSS and SSS, The expense for saving pilot signal improves the spectrum utilization efficiency of system.It is used and when due to detecting SSS twice Antenna port is different, to improve the performance of channel estimation.

7th embodiment

It is a kind of flow of the method for reseptance of synchronous access signal group provided in an embodiment of the present invention referring to Figure 11, Figure 11 Figure, wherein it includes PSS, SSS and PBCH signal that the synchronization, which accesses signal group, and as shown in figure 11, this approach includes the following steps：

Step 1101, in first time resource, use PSS described in third antenna Port detecting.

User terminal can send the antenna port pair that the PSS is used using with network side equipment in step 1101 The antenna port answered detects the PSS on corresponding time resource.Such as：Send PSS for the first time makes in first time resource It is sent with first antenna port, then user terminal can be in first time resource use corresponding with first antenna port the Triantennary Port detecting PSS.

Step 1102 detects the SSS in the second time resource using the 4th antenna port.

User terminal can send the antenna port pair that the SSS is used using with network side equipment in step 1102 The antenna port answered detects the SSS in the frequency resource in corresponding time resource.Such as：SSS is sent for the first time the Two time resources are sent using the second antenna port, then user terminal can be in the second time resource use and the second antenna Corresponding 4th antenna port in port detects SSS.

Step 1103, in the 4th time resource, detect the PSS again using third antenna port.

Step 1104, in the 5th time resource, using third antenna port, detect the SSS again.

Step 1105, using the PSS and the SSS detected, carry out time and Frequency Synchronization, utilize what is detected The SSS carries out channel estimation, obtains channel estimation results.

Step 1106 uses third antenna port and the 4th day in third time resource using the channel estimation results PBCH signals described in line Port detecting.

It is described to detect the SSS using the 4th antenna port, including：

Using the 4th antenna port, first random sequence is detected by the first default frequency range, passes through the second default frequency Section detects second random sequence；

It is described to detect the SSS again using third antenna port, including：

Using third antenna port, first random sequence is detected by the first default frequency range, passes through the second default frequency Section detects second random sequence.

In the embodiment of the present invention, in first time resource, PSS described in third antenna Port detecting is used；In the second time Resource detects the SSS using the 4th antenna port；In the 4th time resource, detected again using third antenna port described in PSS；In the 5th time resource, using third antenna port, the SSS is detected again；Utilize the PSS that detects and described SSS carries out time and Frequency Synchronization, carries out channel estimation using the SSS detected, obtains channel estimation results； Three time resources detect the PBCH using third antenna port and the 4th antenna port and believe using the channel estimation results Number.Due to repeated detection PSS and SSS, to improve the detection performance and the synchronization accuracy of time and frequency of PSS and SSS, The expense for saving pilot signal improves the spectrum utilization efficiency of system.It is used and when due to detecting SSS twice Antenna port is different, to improve the performance of channel estimation.

8th embodiment

It is a kind of flow of the method for reseptance of synchronous access signal group provided in an embodiment of the present invention referring to Figure 12, Figure 12 Figure, wherein it includes PSS, SSS and PBCH signal that the synchronization, which accesses signal group, and as shown in figure 12, this approach includes the following steps：

Step 1201, in first time resource, use PSS described in third antenna Port detecting.

User terminal can send the antenna port pair that the PSS is used using with network side equipment in step 1201 The antenna port answered detects the PSS on corresponding time resource.Such as：Send PSS for the first time makes in first time resource It is sent with first antenna port, then user terminal can be in first time resource use corresponding with first antenna port the Triantennary Port detecting PSS.

Step 1202 detects the SSS in the second time resource using third antenna port and the 4th antenna port.

User terminal can send the antenna port pair that the SSS is used using with network side equipment in step 1202 The antenna port answered detects the SSS in the frequency resource in corresponding time resource.Such as：SSS is sent for the first time the Two time resources are sent using first antenna port and the second antenna port, then user terminal can be in the second time resource SSS is detected using third antenna corresponding with first antenna port port and the 4th antenna port.

Step 1203, in the 4th time resource, detect the PSS again using third antenna port.

Step 1204, in the 5th time resource, using the 4th antenna port and third antenna port, again described in detection SSS。

Step 1205, using the PSS and the SSS detected, carry out time and Frequency Synchronization, utilize what is detected The SSS carries out channel estimation, obtains channel estimation results.

Step 1206 uses third antenna port and the 4th day in third time resource using the channel estimation results PBCH signals described in line Port detecting.

It is described to detect the SSS using third antenna port and/or the 4th antenna port in the second time resource, including：

In the second time resource, using third antenna port, first random sequence is detected by the first default frequency range, And the 4th antenna port is used, second random sequence is detected by the second default frequency range；

It is described, using the 4th antenna port and/or third antenna port, to detect the SSS again in the 5th time resource, Including：

In the 5th time resource, using the 4th antenna port, first random sequence is detected by the first default frequency range, And using third antenna port, second random sequence is detected by the second default frequency range.

In the embodiment, it may be implemented to examine in different frequency resources using different antennae port in the second time resource The first random sequence of SSS is surveyed, and SSS is detected in different frequency resources using different antennae port in the 5th time resource The second random sequence, and send PBCH signals using two antenna ports in the third time.SSS thus may be implemented every A antenna port all repeats to have detected twice, and above-mentioned second time resource and the 5th time resource can be respectively in a slot Both ends, to substantially increase the performance of channel estimation.In addition, the different frequencies in sending and detect for second by first time Rate resource (such as：Low-frequency range and high band) SSS two Sequence Detection antenna ports switching, further improve The performance of channel estimation.

In the embodiment of the present invention, in first time resource, PSS described in third antenna Port detecting is used；In the second time Resource detects the SSS using third antenna port and the 4th antenna port；In the 4th time resource, third antenna end is used Mouth detects the PSS again；In the 5th time resource, using the 4th antenna port and third antenna port, again described in detection SSS；Using the PSS and the SSS detected, time and Frequency Synchronization are carried out, letter is carried out using the SSS detected Road is estimated, channel estimation results are obtained；In third time resource third antenna port is used using the channel estimation results The PBCH signals are detected with the 4th antenna port.Due to repeated detection PSS and SSS, to improve the detection of PSS and SSS The synchronization accuracy of performance and time and frequency save the expense of pilot signal, improve the spectrum utilization efficiency of system.With And due to detection SSS and PBCH signals are sent using the transmission of identical double antenna port, user terminal advantageous in this way uses detection The channel estimation of the SSS arrived detects PBCH signals, to improve detection performance.Furthermore it is also possible in the second time resource using not The first random sequence of SSS is detected in different frequency resources with antenna port, and is used not on the same day in the 5th time resource Line end mouth detects the second random sequence of SSS in different frequency resources, and is detected using two antenna ports in the third time PBCH signals.SSS thus may be implemented to repeat to have detected twice in each antenna port, and above-mentioned second time resource and 5th time resource can be respectively at the both ends of a slot, to substantially increase the performance of channel estimation.In addition, passing through The switching of two Sequence Detection antenna ports of the SSS of one-time detection and the different frequency resource in second of detection, more into one The performance for improving channel estimation of step.

9th embodiment

It is a kind of structure chart of network side equipment provided in an embodiment of the present invention referring to Figure 13, Figure 13, can realizes The details of the sending method of synchronous access signal group in one embodiment to fourth embodiment, and reach identical effect.The net Transmission of the network side apparatus for synchronous access signal grade, the synchronous access signal group includes PSS, SSS and PBCH signal, is such as schemed Shown in 13, the network side equipment 1300 includes：First sending module 1301, the second sending module 1302, third sending module 1303, the 4th sending module 1304 and the 5th sending module 1305, wherein：

First sending module 1301, in first time resource, the PSS to be sent using first antenna port；

Second sending module 1302, in the second time resource, using first antenna port and/or the second antenna port Send the SSS；

Third sending module 1303, in third time resource, being sent out using first antenna port and the second antenna port Send the PBCH signals；

4th sending module 1304, in the 4th time resource, the PSS to be sent again using first antenna port；

5th sending module 1305, in the 5th time resource, using the second antenna port and/or first antenna port The SSS is sent again.

Optionally, when in second time resource, when sending the SSS using first antenna port, the described 5th Time resource sends the SSS again using the second antenna port；

When in second time resource, when sending the SSS using the second antenna port, being provided in the 5th time Source sends the SSS again using first antenna port.

Second sending module 1302 is specifically used for, in the second time resource, using first antenna port, occupying first Default frequency range sends first random sequence, occupies the second default frequency range and sends second random sequence；Or specific use It in the second time resource, using the second antenna port, occupies the first default frequency range and sends first random sequence, occupy the Two default frequency ranges send second random sequence；

4th sending module 1304 is specifically used for, in the 4th time resource, using first antenna port, occupying first Default frequency range sends first random sequence, occupies the second default frequency range and sends second random sequence；Or specific use It in the 4th time resource, using the second antenna port, occupies the first default frequency range and sends first random sequence, occupy the Two default frequency ranges send second random sequence.

Second sending module 1302 is specifically used for, in the second time resource, using first antenna port, occupying first Default frequency range sends first random sequence, and uses the second antenna port, occupies the second default frequency range and sends described second Random sequence；

5th sending module 1305 is specifically used for, in the 5th time resource, using the second antenna port, occupying first Default frequency range sends first random sequence, and using first antenna port, occupies the second default frequency range and send described second Random sequence.

Optionally, the third sending module 1303, is specifically used in third time resource, using first antenna port and Second antenna port sends the PBCH signals in the way of space-frequency diversity or space and time diversity.

Optionally, the third sending module 1303 is specifically used for the first PBCH information symbols and the 2nd PBCH information Symbol carries out precoding, and sends precoding knot using first antenna port and the second antenna port in third time resource Fruit.

Optionally, time resource corresponding with the synchronous access signal group is slot s lot, the first time resource For the 1st orthogonal frequency division multiplex OFDM symbol in the slot, second time resource is the 2nd in the slot OFDM symbol, the third time resource are the 3rd, 4 and 5 OFDM symbol in the slot, and the 4th time resource is The 6th OFDM symbol in the slot, the 5th time resource are the 7th OFDM symbol in the slot.

It should be noted that above-mentioned network side equipment 1300 can be that method is implemented in the embodiment of the present invention in the present embodiment The network side equipment of arbitrary embodiment in example, in the embodiment of the present invention in embodiment of the method network side equipment arbitrary embodiment party Formula can be realized by the above-mentioned network side equipment 1300 in the present embodiment, and reach identical advantageous effect, herein not It repeats again.

Tenth embodiment

It is a kind of structure chart of user terminal provided in an embodiment of the present invention referring to Figure 14, Figure 14, can realizes that the 5th is real The details of the method for reseptance of the synchronous access signal group in example to the 8th embodiment is applied, and reaches identical effect.The user is whole Reception of the end for synchronous access signal group, the synchronous access signal group includes PSS, SSS and PBCH signal, such as Figure 14 institutes Show, the user terminal 1400 includes：First detection module 1401, the second detection module 1402, third detection module 1403, Four detection modules 1404, synchronization module 1405 and the 5th detection module 1406, wherein：

First detection module 1401, in first time resource, using PSS described in third antenna Port detecting；

Second detection module 1402, in the second time resource, using third antenna port and/or the 4th antenna end Mouthful, detect the SSS；

Third detection module 1403, in the 4th time resource, the PSS to be detected again using third antenna port；

4th detection module 1404, in the 5th time resource, using the 4th antenna port and/or third antenna end Mouthful, the SSS is detected again；

Synchronization module 1405 is utilized for using the PSS and the SSS detected, carrying out time and Frequency Synchronization The SSS detected carries out channel estimation, obtains channel estimation results；

5th detection module 1406, for using third antenna using the channel estimation results in third time resource Port and the 4th antenna port detect the PBCH signals.

Optionally, when in second time resource, using described in third antenna Port detecting when SSS, the described 5th Time resource detects the SSS again using the 4th antenna port；

When in second time resource, when detecting the SSS using the 4th antenna port, being provided in the 5th time The SSS is detected in source again using third antenna port.

Second detection module 1402 is specifically used for passing through first using third antenna port in the second time resource Default frequency range detects first random sequence, and second random sequence is detected by the second default frequency range；Or specific use In in the second time resource, using the 4th antenna port, first random sequence is detected by the first default frequency range, by the Two default frequency ranges detect second random sequence；

4th detection module 1404 is specifically used for using third antenna port, and institute is detected by the first default frequency range The first random sequence is stated, second random sequence is detected by the second default frequency range；Or specifically for using the 4th antenna Port, first random sequence is detected by the first default frequency range, and second stochastic ordering is detected by the second default frequency range Row.

Second detection module 1402 is specifically used for passing through first using third antenna port in the second time resource Default frequency range detects first random sequence, and uses the 4th antenna port, passes through the second default frequency range detection described second Random sequence；

4th detection module 1404 is specifically used for passing through first using the 4th antenna port in the 5th time resource Default frequency range detects first random sequence, and using third antenna port, passes through the second default frequency range detection described second Random sequence.

Optionally, the 5th detection module 1406 is specifically used for, in third time resource, utilizing the channel estimation knot Fruit detects the PBCH using third antenna port and the 4th antenna port by way of space-frequency diversity or space and time diversity Signal.

It should be noted that above-mentioned user terminal 1400 can be embodiment of the method in the embodiment of the present invention in the present embodiment In arbitrary embodiment user terminal, the arbitrary embodiment of user terminal all may be used in embodiment of the method in the embodiment of the present invention To be realized by the above-mentioned user terminal 1400 in the present embodiment, and reach identical advantageous effect, details are not described herein again.

11st embodiment

It is the structure chart of the network side equipment of application of the embodiment of the present invention referring to Figure 15, Figure 15, can realizes the first implementation Example synchronizes the details for the sending method for accessing signal group in second embodiment, and reaches identical effect, wherein synchronizes and connects It includes PSS, SSS and PBCH signal to enter signal group.As shown in figure 15, which includes：Processor 1501, transmitting-receiving Machine 1502, memory 1503, user interface 1504 and bus interface, wherein：

Processor 1501 executes following process for reading the program in memory 1503：

In first time resource, the PSS is sent using first antenna port；

In the 4th time resource, the PSS is sent again using first antenna port；

Wherein, transceiver 1502, for sending and receiving data, the transceiver 1502 under the control of processor 1501 Including at least two antenna ports.

In fig.15, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1501 generation of processor The various circuits for the memory that the one or more processors and memory 1503 of table represent link together.Bus architecture may be used also To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1502 can To be multiple element, that is, includes transmitter and receiver, the list for being communicated over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 1504, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loud speaker, microphone, control stick etc..

Processor 1501 is responsible for bus architecture and common processing, and memory 1503 can store processor 1501 and exist Execute used data when operation.

The use first antenna port that processor 1501 executes sends the SSS, including：

The second antenna port of use that processor 1501 executes sends the SSS, including：

The use first antenna port that processor 1501 executes sends the SSS again, including：

The second antenna port of use that processor 1501 executes sends the SSS again, including：

Processor 1501 execute in the second time resource, use first antenna port and/or the second antenna port to send The SSS, including：

Processor 1501 execute in the 5th time resource, again using the second antenna port and/or first antenna port The SSS is sent, including：

Optionally, processor 1501 execute in third time resource, use first antenna port and the second antenna port The PBCH signals are sent, including：

Optionally, processor 1501 execute in third time resource, using first antenna port and the second antenna port, In the way of space-frequency diversity or space and time diversity, the PBCH signals are sent, including：

It should be noted that above-mentioned network side equipment 1500 can be that method is implemented in the embodiment of the present invention in the present embodiment The network side equipment of arbitrary embodiment in example, in the embodiment of the present invention in embodiment of the method network side equipment arbitrary embodiment party Formula can be realized by the above-mentioned network side equipment 1500 in the present embodiment, and reach identical advantageous effect, herein not It repeats again.

12nd embodiment

It is the structure chart of the user terminal of application of the embodiment of the present invention referring to Figure 16, Figure 16, can realizes 3rd embodiment In synchronizing signal method of reseptance details, and reach identical effect, wherein synchronous access signal group includes PSS, SSS With PBCH signals.As shown in figure 16, user terminal 1600 includes：It is at least one processor 1601, memory 1602, at least one Network interface 1604 and user interface 1603.Various components in terminal 1600 are coupled by bus system 1605.It can Understand, bus system 1605 is for realizing the connection communication between these components.Bus system 1605 except include data/address bus it Outside, further include power bus, controlling bus and status signal bus in addition.It, in figure 16 will be various but for the sake of clear explanation Bus is all designated as bus system 1605.

Wherein, user interface 1603 may include display, keyboard or pointing device (for example, mouse, trace ball (track ball), touch-sensitive plate or touch screen etc..

It is appreciated that the memory 1602 in the embodiment of the present invention can be volatile memory or non-volatile memories Both device, or may include volatile and non-volatile memory.Wherein, nonvolatile memory can be read-only memory (Read-Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), erasable programmable are only Read memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, ) or flash memory EEPROM.Volatile memory can be random access memory (Random Access Memory, RAM), use Make External Cache.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random-access Memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random-access Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDRSDRAM), it is enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronous Connect dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DRRAM).The memory 1602 of system and method described herein be intended to including but not limited to this A little and any other suitable type memory.

In some embodiments, memory 1602 stores following element, executable modules or data structures, or Their subset of person or their superset：Operating system 16021 and application program 16022.

Wherein, operating system 16021, including various system programs, such as ccf layer, core library layer, driving layer etc., are used for Realize various basic businesses and the hardware based task of processing.Application program 16022, including various application programs, such as matchmaker Body player (Media Player), browser (Browser) etc., for realizing various applied business.Realize that the present invention is implemented The program of example method may be embodied in application program 16022.

In embodiments of the present invention, by the program for calling memory 1602 to store or instruction, specifically, can be application The program stored in program 16022 or instruction, processor 1601 are used for：

In the 4th time resource, the PSS is detected again using third antenna port；

In the 5th time resource, using the 4th antenna port and/or third antenna port, the SSS is detected again；

Using the PSS and the SSS detected, carry out time and Frequency Synchronization, using the SSS detected into Row channel estimation obtains channel estimation results；

The method that the embodiments of the present invention disclose can be applied in processor 1601, or real by processor 1601 It is existing.Processor 1601 may be a kind of IC chip, the processing capacity with signal.During realization, the above method Each step can be completed by the instruction of the integrated logic circuit of the hardware in processor 1601 or software form.Above-mentioned Processor 1601 can be general processor, digital signal processor (Digital Signal Processor, DSP), special Integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general Processor can be microprocessor or the processor can also be any conventional processor etc..In conjunction with institute of the embodiment of the present invention The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor And software module combination executes completion.Software module can be located at random access memory, and flash memory, read-only memory may be programmed read-only In the storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The storage medium is located at The step of memory 1602, processor 1601 reads the information in memory 1602, the above method is completed in conjunction with its hardware.

It is understood that embodiments described herein can use hardware, software, firmware, middleware, microcode or its It combines to realize.For hardware realization, processing unit may be implemented in one or more application-specific integrated circuit (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor, In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.

For software implementations, it can be realized herein by executing the module (such as process, function etc.) of function described herein The technology.Software code is storable in memory and is executed by processor.Memory can in the processor or It is realized outside processor.

What processor 1601 executed uses SSS described in third antenna Port detecting, including：

The 4th antenna port of use that processor 1601 executes detects the SSS, including：

What processor 1601 executed detects the SSS again using third antenna port, including：

The 4th antenna port of use that processor 1601 executes detects the SSS again, including：

The 4th antenna port is reused, first random sequence is detected by the first default frequency range, it is pre- by second If frequency range detects second random sequence.

Processor 1601 execute in the second time resource, use third antenna port and/or the detection of the 4th antenna port The SSS, including：

Processor 1601 execute in the 5th time resource, using the 4th antenna port and/or third antenna port, again The SSS is detected, including：

Optionally, what processor 1601 executed uses third day in third time resource using the channel estimation results Line end mouth and the 4th antenna port detect the PBCH signals, including：

It should be noted that above-mentioned user terminal 1600 can be embodiment of the method in the embodiment of the present invention in the present embodiment In arbitrary embodiment user terminal, the arbitrary embodiment of user terminal all may be used in embodiment of the method in the embodiment of the present invention To be realized by the above-mentioned user terminal 1600 in the present embodiment, and reach identical advantageous effect, details are not described herein again.

Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In embodiment provided herein, it should be understood that disclosed device and method can pass through others Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit It connects, can be electrical, machinery or other forms.

The unit illustrated as separating component may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple In network element.Some or all of unit therein can be selected according to the actual needs to realize the embodiment of the present invention Purpose.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can to store program code Medium.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims

1. a kind of sending method of synchronous access signal group, which is characterized in that the synchronous access signal group includes main synchronous letter Number PSS, subsynchronous signal SSS and Physical Broadcast Channel PBCH signals, the method includes：

In first time resource, the PSS is sent using first antenna port；

In the 4th time resource, the PSS is sent again using first antenna port；

2. the method as described in claim 1, which is characterized in that when in second time resource, using first antenna port When sending the SSS, in the 5th time resource, the SSS is sent again using the second antenna port；

When in second time resource, when sending the SSS using the second antenna port, in the 5th time resource, making The SSS is sent again with first antenna port.

3. method as claimed in claim 2, which is characterized in that the SSS includes the first random sequence and the second random sequence；

It is described to send the SSS using first antenna port, including：

It using first antenna port, occupies the first default frequency range and sends first random sequence, occupy the second default frequency range hair Send second random sequence；

It is described to send the SSS using the second antenna port, including：

It using the second antenna port, occupies the first default frequency range and sends first random sequence, occupy the second default frequency range hair Send second random sequence；

It is described to send the SSS again using first antenna port, including：

It using the second antenna port, occupies the first default frequency range and sends first random sequence, occupy the second default frequency range hair Send second random sequence.

4. the method as described in claim 1, which is characterized in that the SSS includes the first random sequence and the second random sequence；

It occupies the first default frequency range using first antenna port in the second time resource and sends first random sequence, and make With the second antenna port, occupies the second default frequency range and send second random sequence；

It occupies the first default frequency range using the second antenna port in the 5th time resource and sends first random sequence, and make With first antenna port, occupies the second default frequency range and send second random sequence.

5. method as described in claim 3 or 4, which is characterized in that the first default frequency range is less than predetermined threshold value, and described the Two default frequency ranges are higher than predetermined threshold value.

6. such as Claims 1-4 any one of them method, which is characterized in that it is described in third time resource, it uses first day Line end mouth and the second antenna port send the PBCH signals, including：

In third time resource, using first antenna port and the second antenna port, space-frequency diversity or space and time diversity are utilized Mode sends the PBCH signals.

7. method as claimed in claim 6, which is characterized in that it is described in third time resource, using first antenna port and Second antenna port sends the PBCH signals in the way of space-frequency diversity or space and time diversity, including：

Precoding is carried out to the first PBCH information symbols and the 2nd PBCH information symbols, and in third time resource, uses first Antenna port and the second antenna port send pre-encoding results.

8. such as Claims 1-4 any one of them method, which is characterized in that when corresponding with the synchronous access signal group Between resource, including the first time resource, second time resource, the third time resource, the 4th time money Source and the 5th time resource.

9. method as claimed in claim 8, which is characterized in that when time resource corresponding with the synchronous access signal group is Gap slot, the first time resource are the 1st orthogonal frequency division multiplex OFDM symbol in the slot, the second time money Source is the 2nd OFDM symbol in the slot, and the third time resource is the 3rd, the 4 and 5 OFDM symbols in the slot Number, the 4th time resource is the 6th OFDM symbol in the slot, and the 5th time resource is in the slot 7th OFDM symbol.

10. a kind of method of reseptance of synchronous access signal group, which is characterized in that the synchronous access signal group includes main synchronous letter Number PSS, subsynchronous signal SSS and Physical Broadcast Channel PBCH signals, the method includes：

In the 4th time resource, the PSS is detected again using third antenna port；

Using the PSS and the SSS detected, time and Frequency Synchronization are carried out, letter is carried out using the SSS detected Road is estimated, channel estimation results are obtained；

In third time resource, using the channel estimation results, institute is detected using third antenna port and the 4th antenna port State PBCH signals.

11. method as claimed in claim 10, which is characterized in that when in second time resource, using third antenna end When mouth detects the SSS, in the 5th time resource, the SSS is detected again using the 4th antenna port；

When in second time resource, when detecting the SSS using the 4th antenna port, in the 5th time resource, making The SSS is detected again with third antenna port.

12. method as claimed in claim 11, which is characterized in that the SSS includes the first random sequence and the second stochastic ordering Row；

SSS described in the use third antenna Port detecting, including：

Using third antenna port, first random sequence is detected by the first default frequency range, is examined by the second default frequency range Survey second random sequence；

It is described to detect the SSS using the 4th antenna port, including：

Using the 4th antenna port, first random sequence is detected by the first default frequency range, is examined by the second default frequency range Survey second random sequence；

It is described to detect the SSS again using third antenna port, including：

Using the 4th antenna port, first random sequence is detected by the first default frequency range, is examined by the second default frequency range Survey second random sequence.

13. method as claimed in claim 10, which is characterized in that the SSS includes the first random sequence and the second stochastic ordering Row；

In the second time resource, using third antenna port, first random sequence is detected by the first default frequency range, and make With the 4th antenna port, second random sequence is detected by the second default frequency range；

It is described, using the 4th antenna port and/or third antenna port, to detect the SSS again in the 5th time resource, packet It includes：

In the 5th time resource, using the 4th antenna port, first random sequence is detected by the first default frequency range, and make With third antenna port, second random sequence is detected by the second default frequency range.

14. method as described in claim 12 or 13, which is characterized in that the first default frequency range is less than predetermined threshold value, institute It states the second default frequency range and is higher than predetermined threshold value.

15. such as claim 10 to 13 any one of them method, which is characterized in that it is described in third time resource, utilize institute Channel estimation results are stated, the PBCH signals are detected using third antenna port and the 4th antenna port, including：

In third time resource, pass through sky using third antenna port and the 4th antenna port using the channel estimation results The mode of frequency division collection or space and time diversity detects the PBCH signals.

16. such as claim 10 to 13 any one of them method, which is characterized in that corresponding with the synchronous access signal group Time resource, including the first time resource, second time resource, the third time resource, the 4th time Resource and the 5th time resource.

17. the method described in claim 16, which is characterized in that time resource corresponding with the synchronous access signal group is Slot s lot, the first time resource are the 1st orthogonal frequency division multiplex OFDM symbol in the slot, second time Resource is the 2nd OFDM symbol in the slot, and the third time resource is the 3rd, 4 and 5 OFDM in the slot Symbol, the 4th time resource are the 6th OFDM symbol in the slot, and the 5th time resource is in the slot The 7th OFDM symbol.

18. a kind of network side equipment, the transmission for synchronous access signal grade, which is characterized in that the synchronous access signal group Include including primary synchronization signal PSS, subsynchronous signal SSS and Physical Broadcast Channel PBCH signals, the network side equipment：

Second sending module is used in the second time resource, described in first antenna port and/or the transmission of the second antenna port SSS；

Third sending module is used in third time resource, described in first antenna port and the transmission of the second antenna port PBCH signals；

5th sending module, in the 5th time resource, being sent again using the second antenna port and/or first antenna port The SSS.

19. network side equipment as claimed in claim 18, which is characterized in that when in second time resource, using first When antenna port sends the SSS, in the 5th time resource, the SSS is sent again using the second antenna port；

20. network side equipment as claimed in claim 19, which is characterized in that the SSS includes the first random sequence and second Random sequence；

Second sending module is specifically used for, in the second time resource, using first antenna port, occupying the first default frequency range First random sequence is sent, the second default frequency range is occupied and sends second random sequence；Or specifically for second Time resource is occupied the first default frequency range and is sent first random sequence using the second antenna port, occupies the second default frequency Section sends second random sequence

4th sending module is specifically used for, in the 4th time resource, using first antenna port, occupying the first default frequency range First random sequence is sent, the second default frequency range is occupied and sends second random sequence；Or specifically for the 4th Time resource is occupied the first default frequency range and is sent first random sequence using the second antenna port, occupies the second default frequency Section sends second random sequence.

21. network side equipment as claimed in claim 18, which is characterized in that the SSS includes the first random sequence and second Random sequence；

Second sending module is specifically used for, in the second time resource, using first antenna port, occupying the first default frequency range First random sequence is sent, and uses the second antenna port, the second default frequency range is occupied and sends second random sequence；

5th sending module is specifically used for, in the 5th time resource, using the second antenna port, occupying the first default frequency range First random sequence is sent, and using first antenna port, occupies the second default frequency range and sends second random sequence.

22. the network side equipment as described in claim 20 or 21, which is characterized in that the first default frequency range is less than default threshold Value, the second default frequency range are higher than predetermined threshold value.

23. such as claim 18 to 21 any one of them network side equipment, which is characterized in that the third sending module, tool Body is used to utilize space-frequency diversity or space and time diversity using first antenna port and the second antenna port in third time resource Mode, send the PBCH signals.

24. network side equipment as claimed in claim 23, which is characterized in that the third sending module is specifically used for the One PBCH information symbols and the 2nd PBCH information symbols carry out precoding, and in third time resource, use first antenna port With the second antenna port, pre-encoding results are sent.

25. such as claim 18 to 21 any one of them network side equipment, which is characterized in that with the synchronous access signal group Corresponding time resource, including the first time resource, second time resource, the third time resource, described Four time resources and the 5th time resource.

26. network side equipment as claimed in claim 25, which is characterized in that the time corresponding with the synchronous access signal group Resource is slot s lot, and the first time resource is the 1st orthogonal frequency division multiplex OFDM symbol in the slot, described the Two time resources are the 2nd OFDM symbol in the slot, and the third time resource is the 3rd, 4 and 5 in the slot A OFDM symbol, the 4th time resource are the 6th OFDM symbol in the slot, and the 5th time resource is described The 7th OFDM symbol in slot.

27. a kind of user terminal, the reception for synchronous access signal group, which is characterized in that the synchronous access signal group packet Including primary synchronization signal PSS, subsynchronous signal SSS and Physical Broadcast Channel PBCH signals, the user terminal includes：

Second detection module, for detecting institute using third antenna port and/or the 4th antenna port in the second time resource State SSS；

Third detection module, in the 4th time resource, the PSS to be detected again using third antenna port；

4th detection module, for being examined again using the 4th antenna port and/or third antenna port in the 5th time resource Survey the SSS；

Synchronization module, for using the PSS and the SSS detected, carrying out time and Frequency Synchronization, utilizing what is detected The SSS carries out channel estimation, obtains channel estimation results；

5th detection module using the channel estimation results, uses third antenna port and the in third time resource Four antenna ports detect the PBCH signals.

28. user terminal as claimed in claim 27, which is characterized in that when in second time resource, using third day Described in line Port detecting when SSS, in the 5th time resource, the SSS is detected again using the 4th antenna port；

29. user terminal as claimed in claim 27, which is characterized in that the SSS include the first random sequence and second with Machine sequence；

Second detection module is specifically used for passing through the first default frequency range using third antenna port in the second time resource First random sequence is detected, second random sequence is detected by the second default frequency range；Or specifically for second Time resource detects first random sequence using the 4th antenna port by the first default frequency range, passes through the second default frequency Section detects second random sequence；

4th detection module is specifically used for using third antenna port, by the first default frequency range detection described first with Machine sequence detects second random sequence by the second default frequency range；Or specifically for using the 4th antenna port, pass through First default frequency range detects first random sequence, and second random sequence is detected by the second default frequency range.

30. user terminal as claimed in claim 27, which is characterized in that the SSS include the first random sequence and second with Machine sequence；

Second detection module is specifically used for passing through the first default frequency range using third antenna port in the second time resource First random sequence is detected, and uses the 4th antenna port, second random sequence is detected by the second default frequency range；

4th detection module is specifically used for passing through the first default frequency range using the 4th antenna port in the 5th time resource First random sequence is detected, and using third antenna port, second random sequence is detected by the second default frequency range.

31. the user terminal as described in claim 29 or 30, which is characterized in that the first default frequency range is less than default threshold Value, the second default frequency range are higher than predetermined threshold value.

32. such as claim 27 to 30 any one of them user terminal, which is characterized in that the 5th detection module, specifically For in third time resource, passing through sky using third antenna port and the 4th antenna port using the channel estimation results The mode of frequency division collection or space and time diversity detects the PBCH signals.

33. such as claim 27 to 30 any one of them user terminal, which is characterized in that with the synchronous access signal group pair The time resource answered, including the first time resource, second time resource, the third time resource, the described 4th Time resource and the 5th time resource.

34. user terminal as claimed in claim 33, which is characterized in that the time corresponding with the synchronous access signal group provides Source be slot s lot, the first time resource be the slot in the 1st orthogonal frequency division multiplex OFDM symbol, described second Time resource is the 2nd OFDM symbol in the slot, and the third time resource is the 3rd, 4 and 5 in the slot OFDM symbol, the 4th time resource are the 6th OFDM symbol in the slot, and the 5th time resource is described The 7th OFDM symbol in slot.

35. a kind of Transmission system of synchronous access signal group, which is characterized in that including any one of such as claim 18 to 26 institute State network side equipment and the user terminal as described in any one of claim 27 to 34.