WO2018145531A1 - Method for sending synchronous access signal group, method for receiving same, related device and system - Google Patents
Method for sending synchronous access signal group, method for receiving same, related device and system Download PDFInfo
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- WO2018145531A1 WO2018145531A1 PCT/CN2017/119738 CN2017119738W WO2018145531A1 WO 2018145531 A1 WO2018145531 A1 WO 2018145531A1 CN 2017119738 W CN2017119738 W CN 2017119738W WO 2018145531 A1 WO2018145531 A1 WO 2018145531A1
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- antenna port
- time resource
- sss
- random sequence
- frequency band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
- H04J3/0617—Systems characterised by the synchronising information used the synchronising signal being characterised by the frequency or phase
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
Definitions
- the present disclosure relates to the field of communications technologies, and in particular, to a method, a receiving method, a related device, and a system for transmitting a synchronous access signal group.
- the user terminal needs to detect a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) to achieve initial time and frequency synchronization, and then detect the physical broadcast channel.
- PSS Primary Synchronization Signal
- SSS Secondary Synchronization Signal
- PBCH Physical Broadcast Channel
- the network side device in the related art usually uses one antenna port to transmit the PSS and the SSS once, and the user terminal performs sequence detection, which results in poor detection performance of the PSS and the SSS.
- the embodiments of the present disclosure provide a method, a receiving method, a related device, and a system for transmitting a synchronization access signal group, so as to solve the problem that the detection performance of the PSS and the SSS is poor.
- an embodiment of the present disclosure provides a method for transmitting a synchronization access signal group, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, and the method includes:
- the SSS is transmitted again using the second antenna port and/or the first antenna port.
- an embodiment of the present disclosure further provides a method for receiving a synchronization access signal group, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, and the method includes:
- the PBCH signal is detected using the third antenna port and the fourth antenna port.
- the embodiment of the present disclosure further provides a network side device, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, where the network side device includes:
- a first sending module configured to send the PSS by using a first antenna port in a first time resource
- a second sending module configured to send the SSS by using a first antenna port and/or a second antenna port in a second time resource
- a third sending module configured to send the PBCH signal by using the first antenna port and the second antenna port in the third time resource
- a fourth sending module configured to send the PSS again by using the first antenna port in the fourth time resource
- a fifth sending module configured to send the SSS again by using the second antenna port and/or the first antenna port in the fifth time resource.
- the embodiment of the present disclosure further provides a user terminal, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, where the user terminal includes:
- a first detecting module configured to detect the PSS by using a third antenna port in a first time resource
- a second detecting module configured to detect the SSS by using a third antenna port and/or a fourth antenna port in a second time resource
- a third detecting module configured to detect the PSS by using a third antenna port again in the fourth time resource
- a fourth detecting module configured to detect the SSS by using the fourth antenna port and/or the third antenna port again in the fifth time resource
- a synchronization module configured to perform time and frequency synchronization by using the detected PSS and the SSS;
- An estimation module configured to perform channel estimation by using the detected SSS, to obtain a channel estimation result
- a fifth detecting module configured to detect the PBCH signal by using the third antenna port and the fourth antenna port by using the channel estimation result at the third time resource.
- an embodiment of the present disclosure further provides a network side device, including: a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program is processed.
- a network side device including: a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program is processed.
- an embodiment of the present disclosure further provides a mobile terminal, including: a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program is used by the processor.
- the embodiment of the present disclosure further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and when the computer program is executed by the processor, the synchronization access signal group in the first aspect is implemented. The steps in the sending method.
- an embodiment of the present disclosure further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, where the computer program is executed by a processor to implement a synchronization access signal group in the second aspect. The steps in the receiving method.
- the PSS is sent by using the first antenna port in the first time resource
- the SSS is sent by using the first antenna port and/or the second antenna port in the second time resource
- a time resource using the first antenna port and the second antenna port to transmit the PBCH signal
- in the fourth time resource using the first antenna port to transmit the PSS again
- in the fifth time resource using the second antenna port and/or
- the first antenna port transmits the SSS again, and the PSS and the SSS are sent multiple times, thereby improving the detection performance of PSS and SSS and the synchronization precision of time and frequency, saving the overhead of the pilot signal, and improving the spectrum utilization efficiency of the system.
- 1 is a structural diagram of a transmission system of a synchronous access signal group
- FIG. 2 is a flowchart of a method for transmitting a synchronization access signal group according to a first embodiment of the present disclosure
- FIG. 3 is a flowchart of a method for transmitting a synchronization access signal group according to a second embodiment of the present disclosure
- FIG. 4 is a schematic diagram of transmission of a synchronous access signal group according to a second embodiment of the present disclosure
- FIG. 5 is a flowchart of a method for transmitting a synchronization access signal group according to a third embodiment of the present disclosure
- FIG. 7 is a flowchart of a method for transmitting a synchronization access signal group according to a fourth embodiment of the present disclosure.
- FIG. 8 is a schematic diagram of another synchronous access signal group transmission according to a fourth embodiment of the present disclosure.
- FIG. 9 is a flowchart of a method for receiving a synchronization access signal group according to a fifth embodiment of the present disclosure.
- FIG. 10 is a flowchart of a method for receiving a synchronization access signal group according to a sixth embodiment of the present disclosure.
- FIG. 11 is a flowchart of a method for receiving a synchronization access signal group according to a seventh embodiment of the present disclosure
- FIG. 12 is a flowchart of a method for receiving a synchronization access signal group according to an eighth embodiment of the present disclosure.
- FIG. 13 is a structural diagram of a network side device according to a ninth embodiment of the present disclosure.
- FIG. 14 is a structural diagram of a user terminal according to a tenth embodiment of the present disclosure.
- FIG. 15 is a structural diagram of a network side device according to an eleventh embodiment of the present disclosure.
- FIG. 16 is a structural diagram of a user terminal according to a twelfth embodiment of the present disclosure.
- FIG. 1 is a structural diagram of a transmission system of a synchronous access signal group, which is applicable to an embodiment of the present disclosure.
- the user terminal 11 and the network side device 12 are included. It is a User Equipment (UE), for example, it can be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), and a mobile Internet device (Mobile Internet Device, The terminal side device such as the MID) or the wearable device, it should be noted that the specific type of the user terminal 11 is not limited in the embodiment of the present disclosure.
- UE User Equipment
- PDA personal digital assistant
- Mobile Internet Device Mobile Internet Device
- the terminal side device such as the MID
- the wearable device it should be noted that the specific type of the user terminal 11 is not limited in the embodiment of the present disclosure.
- the user terminal 11 can establish communication with the network side device 12, wherein the network in the figure can indicate that the user terminal 11 and the network side device 12 establish wireless communication, and the network side device 12 can be a Transmission Reception Point (TRP). Or it may be a base station, and the base station may be a macro station, such as an LTE eNB, a 5G NRNB, or the like. Or the network side device 12 may be an access point (AP).
- TRP Transmission Reception Point
- AP access point
- network side device 12 is not limited in the embodiment of the present disclosure.
- the specific functions of the user terminal 11 and the network side device 12 will be specifically described by using the following embodiments.
- FIG. 2 is a flowchart of a method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. 2, including The following steps:
- Step 201 Send, at the first time resource, the PSS by using a first antenna port.
- the first time resource may be one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols in a certain subframe or a slot.
- the first antenna port in step 201 may be any one of the antenna ports included in the network side device.
- Step 202 Send, at the second time resource, the SSS by using the first antenna port and/or the second antenna port.
- the second time resource may be a subframe or one or more OFDM symbols in a slot.
- sending the SSS by using the first antenna port and/or the second antenna port may be, in a second time resource, the SSS may be sent using one or two antenna ports of the first antenna port and the second antenna port. .
- Step 203 Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
- the PBCH signal may include system information, for example, a master information block (MIB), and may be other system information, which is not limited in this embodiment.
- MIB master information block
- Step 204 At the fourth time resource, send the PSS again using the first antenna port.
- the antenna port used in step 204 may be the same antenna port as the antenna port used in step 201.
- Step 205 At the fifth time resource, send the SSS again by using the second antenna port and/or the first antenna port.
- step 205 refer to the corresponding description of the step 202.
- the step 205 may also use the same antenna port to send the SSS, but the antenna port used in step 205 is used in step 202.
- the antenna ports can be different antenna ports.
- the PSS and the SSS are transmitted multiple times through the above steps, thereby improving the detection performance of the PSS and the SSS, that is, the user terminal is more likely to detect the PSS and the SSS.
- the user terminal may perform time and frequency synchronization by using the detected PSS and SSS, and may also perform channel estimation by using the detected SSS, obtain channel estimation result, and then use the channel estimation.
- the PBCH signal is detected using the third antenna port and the fourth antenna port. If the PBCH signal includes system information, the user terminal may also demodulate the detected PBCH signal to obtain system information. Since the channel estimation is directly performed by using the SSS, it is not necessary to transmit a Cell-specific Reference Signal (CRS), which can eliminate the overhead of the CRS and improve the spectrum efficiency.
- CRS Cell-specific Reference Signal
- the method can be applied to a network side device.
- the embodiment of the present disclosure can be applied to a MIMO (Multiple-Input Multiple-Out-put) system, and can also be applied to a Global System for Mobile Communication (GSM) system.
- MIMO Multiple-Input Multiple-Out-put
- GSM Global System for Mobile Communication
- CDMA code division multiple access
- multiple antenna ports are used for transmission multiple times, thereby improving the performance of the system.
- the PSS is sent by using a first antenna port in a first time resource; the SSS is sent by using a first antenna port and/or a second antenna port in a second time resource; Transmitting the PBCH signal using the first antenna port and the second antenna port; transmitting the PSS again using the first antenna port at the fourth time resource; using the second antenna port and/or the first time at the fifth time resource
- the antenna port transmits the SSS again. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved.
- FIG. 3 is a flowchart of another method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. Includes the following steps:
- Step 301 Send, at the first time resource, the PSS by using a first antenna port.
- the foregoing first time resource may be a slot or a first time resource in a subframe, for example, a first OFDM symbol, and of course, the embodiment of the present disclosure is not limited thereto.
- Step 302 Send, at the second time resource, the SSS by using a first antenna port.
- the foregoing second time resource may be a time resource that is continuous with the first time resource, and the embodiment of the present disclosure is not limited thereto.
- Step 303 Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
- the foregoing third time resource may be a time resource that is continuous with the second time resource, and the embodiment of the present disclosure is not limited thereto.
- sending the PBCH signal by using the first antenna port and the second antenna port including:
- the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
- the sending the PBCH signal may be at least adjacent in the third time resource.
- the two subcarriers or at least two PBCH signal symbols transmitted on at least two OFDM symbols are precoded, and the encoded symbols are transmitted on the first antenna port and the second antenna port, respectively.
- the PBCH signal is sent by using space frequency diversity or space-time diversity, including:
- Precoding the first PBCH information symbol and the second PBCH information symbol and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
- Information symbol y(i) [y (0) (i) y (1) (i)]
- Re represents the real part of the complex number
- Im represents the virtual step of the complex number
- j is the imaginary unit.
- the precoding method is only an example.
- the precoding mode of the PBCH signal is not limited.
- the PBCH signal is transmitted on the third time resource by means of space frequency diversity or space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
- Step 304 At the fourth time resource, send the PSS again using the first antenna port.
- Step 305 At the fifth time resource, send the SSS again by using the second antenna port.
- the fifth time resource may be a time resource that is continuous with the fourth time resource, and the embodiment of the present disclosure is not limited thereto.
- the foregoing step may be implemented, when the SSS is sent by using the first antenna port in the second time resource, and the SSS is sent again by using the second antenna port in the fifth time resource;
- the antenna ports used are different, thereby improving the performance of channel estimation.
- the foregoing SSS includes a first random sequence and a second random sequence
- Transmitting the SSS by using the first antenna port includes:
- the transmitting the SSS again by using the second antenna port includes:
- the first random sequence and the second random sequence may be randomly generated by the network side device, where the generated manner may be generated according to a preset rule.
- a first random sequence in which the SSS is transmitted at different frequency resources using the same antenna port in the second time resource, and a second transmission of the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented.
- a random sequence is used to transmit the PBCH signal using two antenna ports at a third time.
- the SSS signal in the synchronous access signal group (SS block) can be repeatedly transmitted using the dual antenna port, and the time and frequency synchronization accuracy is improved.
- the user terminal is used to detect the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
- a synchronization access signal group occupies one slot (slot) transmission for example, and a signal in a synchronization access signal group (SS block) is sent by two antenna ports, where PSS and SSS are sent twice.
- the PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and the PSS transmits the sixth OFDM symbol in the slot using antenna port 0 for the second time. That is, the PSS is sent using only one antenna port.
- the SSS transmits the second OFDM symbol in the slot using antenna port 0 for the first time, and the seventh OFDM symbol transmission in the slot using antenna port 1 for the second transmission. That is, the SSS is switched on the antenna port used for two transmissions.
- the PBCH always uses two antenna ports simultaneously and can transmit in the 3rd, 4th and 5th OFDM symbols by means of space frequency diversity and space time diversity. These two antenna ports are the same as those used by PSS and SSS.
- the signal structure of the entire SS block is shown in Figure 4. In this way, the PBCH can perform channel estimation through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
- the SSS here is composed of two random sequences, a random sequence 0 and a random sequence 1.
- the SSS occupies one OFDM symbol each time, where the sequence 0 is transmitted with a lower frequency Physical Resource Block (PRB) or a Resource Block (RB), and the sequence 1 is transmitted with a higher frequency PRB.
- PRB Physical Resource Block
- RB Resource Block
- both sequences are sent using the same port each time SSS is sent.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- the preset threshold may be pre-configured by the network side device, or pre-negotiated by the network side device and the user terminal.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the signals in the same synchronous access signal group can be transmitted by using time resources corresponding to the synchronous access signal group, that is, signals in different synchronized access signal groups can be transmitted using different time resources, thereby It can improve the detection performance of the synchronous access signal group.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first OFDM symbol in the slot
- the second time resource is the slot.
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the 6th OFDM symbol in the slot
- the fifth time resource is the 7th OFDM symbol in the slot.
- a synchronous access signal group occupies a slot transmission, and the PSS and SSS are sent twice.
- the PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and can be sent on all resource blocks (RBs) in the OFDM symbol, and the second transmission of PSS uses antenna port 1 at The sixth OFDM symbol in the slot is transmitted.
- the SSS transmits for the first time using antenna port 0 and/or 1 in the second OFDM symbol transmission in the slot, and the second SSS transmits the seventh OFDM symbol transmission in the slot using antenna port 1 and/or 0.
- the PBCH signal is always transmitted using the two antenna ports simultaneously in the 3rd, 4th and 5th OFDM symbols by means of space-frequency diversity and space-time diversity. These two antenna ports are the same as those used by PSS and SSS. Therefore, the PBCH signal can be channel-estimated through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
- the user terminal can detect the PSS and SSS signals in the synchronous access signal group in the corresponding OFDM symbols through different antenna ports in the dual antenna ports, thereby achieving accurate time and frequency synchronization.
- Channel estimation is then performed through the SSS to detect the PBCH signal to obtain system information.
- the PSS is sent by using the first antenna port in the first time resource
- the SSS is sent by using the first antenna port in the second time resource
- the first antenna port is used in the third time resource.
- the second antenna port transmits the PBCH signal; at the fourth time resource, the PSS is retransmitted using the first antenna port; and at the fifth time resource, the SSS is retransmitted using the second antenna port. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is sent twice, the performance of the channel estimation is improved.
- FIG. 5 is a flowchart of another method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. Includes the following steps:
- Step 501 Send, at the first time resource, the PSS by using a first antenna port.
- the foregoing first time resource may be a slot or a first time resource in a subframe, for example, a first OFDM symbol, and of course, the embodiment of the present disclosure is not limited thereto.
- Step 502 Send the SSS by using a second antenna port in the second time resource.
- the foregoing second time resource may be a time resource that is continuous with the first time resource, and the embodiment of the present disclosure is not limited thereto.
- Step 503 Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
- the foregoing third time resource may be a time resource that is continuous with the second time resource, and the embodiment of the present disclosure is not limited thereto.
- sending the PBCH signal by using the first antenna port and the second antenna port including:
- the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
- the sending the PBCH signal may be at least adjacent in the third time resource.
- the two subcarriers or at least two PBCH signal symbols transmitted on at least two OFDM symbols are precoded, and the encoded symbols are transmitted on the first antenna port and the second antenna port, respectively.
- the PBCH signal is sent by using space frequency diversity or space-time diversity, including:
- Precoding the first PBCH information symbol and the second PBCH information symbol and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
- Information symbol y(i) [y (0) (i) y (1) (i)]
- Re represents the real part of the complex number
- Im represents the virtual step of the complex number
- j is the imaginary unit.
- the precoding method is only an example.
- the precoding mode of the PBCH signal is not limited.
- the PBCH signal is transmitted on the third time resource by means of space frequency diversity or space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
- Step 504 At the fourth time resource, send the PSS again using the first antenna port.
- Step 505 At the fifth time resource, send the SSS again by using the first antenna port.
- the fifth time resource may be a time resource that is continuous with the fourth time resource, and the embodiment of the present disclosure is not limited thereto.
- the SSS when the SSS is sent by using the second antenna port in the second time resource, the SSS is sent again by using the first antenna port in the fifth time resource.
- the antenna ports used are different, thereby improving the performance of channel estimation.
- the foregoing SSS includes a first random sequence and a second random sequence
- Transmitting the SSS by using the second antenna port includes:
- the transmitting the SSS again by using the first antenna port includes:
- the first random sequence and the second random sequence may be randomly generated by the network side device, where the generated manner may be generated according to a preset rule.
- a first random sequence in which the SSS is transmitted at different frequency resources using the same antenna port in the second time resource, and a second transmission of the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented.
- a random sequence is used to transmit the PBCH signal using two antenna ports at a third time.
- the SSS signal in the synchronous access signal group (SS block) can be repeatedly transmitted using the dual antenna port, and the time and frequency synchronization accuracy is improved.
- the user terminal is used to detect the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
- a synchronization access signal group occupies one slot (slot) transmission, and a signal in a synchronization access signal group (SS block) is sent by two antenna ports, where PSS and SSS are sent twice.
- the PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and the PSS transmits the sixth OFDM symbol in the slot using antenna port 0 for the second time. That is, the PSS is sent using only one antenna port.
- the SSS transmits the first OFDM symbol transmission in the slot using antenna port 1 for the first time, and transmits the seventh OFDM symbol transmission in the slot using antenna port 0 for the second time. That is, the SSS is switched on the antenna port used for two transmissions.
- the PBCH always uses two antenna ports simultaneously and can transmit in the 3rd, 4th and 5th OFDM symbols by means of space frequency diversity and space time diversity. These two antenna ports are the same as those used by PSS and SSS.
- the signal structure of the entire SS block is shown in Figure 6. In this way, the PBCH can perform channel estimation through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
- the SSS here is composed of two random sequences, a random sequence 0 and a random sequence 1.
- the SSS occupies one OFDM symbol each time, where sequence 0 is transmitted with a lower frequency PRB or RB, and sequence 1 is transmitted with a higher frequency PRB. In this scheme, both sequences are sent using the same port each time SSS is sent.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- the preset threshold may be pre-configured by the network side device, or pre-negotiated by the network side device and the user terminal.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the signals in the same synchronous access signal group can be transmitted by using time resources corresponding to the synchronous access signal group, that is, signals in different synchronized access signal groups can be transmitted using different time resources, thereby It can improve the detection performance of the synchronous access signal group.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first OFDM symbol in the slot
- the second time resource is the slot.
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the 6th OFDM symbol in the slot
- the fifth time resource is the 7th OFDM symbol in the slot.
- a synchronous access signal group occupies a slot transmission, and the PSS and SSS are sent twice.
- the PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and can be sent on all resource blocks (RBs) in the OFDM symbol, and the second transmission of PSS uses antenna port 1 at The sixth OFDM symbol in the slot is transmitted.
- the SSS transmits for the first time using antenna port 0 and/or 1 for the second OFDM symbol transmission in the slot, and the SSS transmits for the second time using antenna port 1 and/or 0 for the 7th OFDM symbol transmission in the slot.
- the PBCH signal is always transmitted at the same time using the two antenna ports in the 3rd, 4th and 5th OFDM symbols by means of space-frequency diversity and space-time diversity. These two antenna ports are the same as those used by PSS and SSS. Therefore, the PBCH signal can be channel-estimated through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
- the user terminal can detect the PSS and SSS signals in the synchronous access signal group in the corresponding OFDM symbols through different antenna ports in the dual antenna ports, thereby achieving accurate time and frequency synchronization.
- Channel estimation is then performed through the SSS to detect the PBCH signal to obtain system information.
- the PSS is sent by using the first antenna port in the first time resource
- the SSS is sent by using the second antenna port in the second time resource
- the first antenna port is used in the third time resource.
- the second antenna port transmits the PBCH signal; at the fourth time resource, the PSS is retransmitted using the first antenna port; and at the fifth time resource, the SSS is retransmitted using the first antenna port. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is sent twice, the performance of the channel estimation is improved.
- FIG. 7 is a flowchart of another method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. Includes the following steps:
- Step 701 Send, at the first time resource, the PSS by using a first antenna port.
- the foregoing first time resource may be a slot or a first time resource in a subframe, for example, a first OFDM symbol, and of course, the embodiment of the present disclosure is not limited thereto.
- Step 702 Send, at the second time resource, the SSS by using the first antenna port and the second antenna port.
- the foregoing second time resource may be a time resource that is continuous with the first time resource, and the embodiment of the present disclosure is not limited thereto.
- Step 703 Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
- the foregoing third time resource may be a time resource that is continuous with the second time resource, and the embodiment of the present disclosure is not limited thereto.
- sending the PBCH signal by using the first antenna port and the second antenna port including:
- the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
- the sending the PBCH signal may be at least adjacent in the third time resource.
- the two subcarriers or at least two PBCH signal symbols transmitted on at least two OFDM symbols are precoded, and the encoded symbols are transmitted on the first antenna port and the second antenna port, respectively.
- the PBCH signal is sent by using space frequency diversity or space-time diversity, including:
- Precoding the first PBCH information symbol and the second PBCH information symbol and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
- Information symbol y(i) [y (0) (i) y (1) (i)]
- Re represents the real part of the complex number
- Im represents the virtual step of the complex number
- j is the imaginary unit.
- the precoding method is only an example.
- the precoding mode of the PBCH signal is not limited.
- the PBCH signal is transmitted on the third time resource by means of space frequency diversity or space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
- Step 704 At the fourth time resource, send the PSS again by using the first antenna port.
- Step 705 In the fifth time resource, send the SSS again by using the second antenna port and the first antenna port.
- the fifth time resource may be a time resource that is continuous with the fourth time resource, and the embodiment of the present disclosure is not limited thereto.
- the SSS includes a first random sequence and a second random sequence
- Transmitting the SSS by using the first antenna port and/or the second antenna port in the second time resource including:
- the first random sequence and the second random sequence may be randomly generated by the network side device, where the generated manner may be generated according to a preset rule.
- a first random sequence in which the SSS is transmitted in different frequency resources using different antenna ports in the second time resource, and a second random transmission in the fifth time resource using different antenna ports in different frequency resources may be implemented.
- the sequence while at the third time, uses two antenna ports to transmit the PBCH signal.
- the SSS can be repeatedly transmitted twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation.
- the switching of the two sequence transmission antenna ports of the SSS of different frequency resources for example, low frequency band and high frequency band
- a slot is occupied by a synchronous access signal group (SS block).
- the signal in the SS SS is transmitted by using two antenna ports.
- the PSS and SSS are sent twice.
- the PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time
- the PSS transmits the sixth OFDM symbol in the slot using antenna port 0 for the second time. That is, the PSS is sent using only one antenna port.
- the SSS is sent for the first time in the second OFDM symbol in the slot, where sequence 0 is transmitted with a lower frequency Physical Resource Block (PRB) with antenna port 0, and sequence 1 uses antenna port 1 at a higher frequency.
- PRB Physical Resource Block
- the SSS is sent for the second time in the 7th OFDM symbol in the slot, and the same SSS sequence is also repeated twice in the OFDM symbol.
- the first difference is that the sequence 0 uses the antenna port 1 at a lower frequency.
- PRB transmission sequence 1 is transmitted with a higher frequency PRB with antenna port 0. That is, the second transmission is switched compared to the first transmission, and the transmission antenna port used in each sequence of the SSS is switched.
- the PBCH always uses two antenna ports simultaneously and can transmit in the 3rd, 4th and 5th OFDM symbols by means of space frequency diversity and space time diversity. These two antenna ports are the same as those used by PSS and SSS.
- the signal structure of the entire SS block is as shown in Fig. 8.
- the PBCH can perform channel estimation through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- the preset threshold may be pre-configured by the network side device, or pre-negotiated by the network side device and the user terminal.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the signals in the same synchronous access signal group can be transmitted by using time resources corresponding to the synchronous access signal group, that is, signals in different synchronized access signal groups can be transmitted using different time resources, thereby It can improve the detection performance of the synchronous access signal group.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first OFDM symbol in the slot
- the second time resource is the slot.
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the 6th OFDM symbol in the slot
- the fifth time resource is the 7th OFDM symbol in the slot.
- a synchronous access signal group occupies a slot transmission, and the PSS and SSS are sent twice.
- the PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and can be sent on all resource blocks (RBs) in the OFDM symbol, and the second transmission of PSS uses antenna port 1 at The sixth OFDM symbol in the slot is transmitted.
- the SSS transmits for the first time using antenna port 0 and/or 1 in the second OFDM symbol transmission in the slot, and the second SSS transmits the seventh OFDM symbol transmission in the slot using antenna port 1 and/or 0.
- the PBCH signal is always transmitted at the same time using the two antenna ports in the 3rd, 4th and 5th OFDM symbols by means of space-frequency diversity and space-time diversity. These two antenna ports are the same as those used by PSS and SSS. Therefore, the PBCH signal can be channel-estimated through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
- the user terminal can detect the PSS and SSS signals in the synchronous access signal group in the corresponding OFDM symbols through different antenna ports in the dual antenna ports, thereby achieving accurate time and frequency synchronization.
- Channel estimation is then performed through the SSS to detect the PBCH signal to obtain system information.
- the PSS is sent by using the first antenna port in the first time resource
- the SSS is sent by using the first antenna port and the second antenna port in the second time resource; Transmitting the PBCH signal with an antenna port and a second antenna port; transmitting the PSS again using the first antenna port at the fourth time resource; and transmitting the second antenna port and the first antenna port again at the fifth time resource SSS. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved.
- the transmitting SSS and the transmitting PBCH signal are transmitted using the same dual antenna port, it is advantageous for the user terminal to detect the PBCH signal by using the channel estimation of the detected SSS to improve the detection performance.
- the first random sequence of the SSS may be sent in different frequency resources using the different antenna ports in the second time resource, and the second random sequence in the SSS is sent in different frequency resources in the fifth time resource using different antenna ports, and The PBCH signal is transmitted using the two antenna ports at the third time.
- the SSS can be repeatedly transmitted twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation.
- the switching of the two sequence transmission antenna ports of the SSS of different frequency resources in the first transmission and the second transmission further improves the performance of the channel estimation.
- FIG. 9 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG.
- the method includes the following steps:
- Step 901 In the first time resource, use the third antenna port to detect the PSS.
- the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
- Step 902 In the second time resource, use the third antenna port and/or the fourth antenna port to detect the SSS.
- the user terminal may detect the SSS on the frequency resource in the corresponding time resource by using an antenna port corresponding to the antenna port used by the network side device to send the SSS. For example, the first time the SSS is sent, the second time resource is sent by using the first antenna port, and then the user terminal can detect the SSS by using the third antenna port corresponding to the first antenna port in the second time resource.
- Step 903 At the fourth time resource, the PSS is detected again by using the third antenna port.
- Step 904 In the fifth time resource, use the fourth antenna port and/or the third antenna port to detect the SSS again.
- Step 905 Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
- the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
- Step 906 At the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
- the PBCH can be detected using the channel estimation results of the PSS and the SSS.
- the detected time and frequency can be synchronized by using the detected PSS and SSS, and the channel estimation result can be obtained by using the detected SSS, and the channel estimation result is obtained, and then the channel estimation result is used.
- the third antenna port and the fourth antenna port detect the PBCH signal. If the PBCH signal includes system information, the user terminal may also demodulate the detected PBCH signal to obtain system information. Since the SSS is directly used for channel estimation, there is no need to transmit CRS, which can save the overhead of CRS and improve spectrum efficiency.
- the PSS is detected by using a third antenna port in a first time resource
- the SSS is detected by using a third antenna port and/or a fourth antenna port in a second time resource
- Resource detecting the PSS again using the third antenna port
- using the detected PSS and the SSS Performing time and frequency synchronization, performing channel estimation using the detected SSS, and acquiring a channel estimation result
- FIG. 10 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG.
- the method includes the following steps:
- Step 1001 In the first time resource, use the third antenna port to detect the PSS.
- the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
- Step 1002 In the second time resource, use the third antenna port to detect the SSS.
- the user terminal may detect the SSS on a frequency resource in a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the SSS. For example, the first time the SSS is sent, the second time resource is sent by using the first antenna port, and then the user terminal can detect the SSS by using the third antenna port corresponding to the first antenna port in the second time resource.
- Step 1003 At the fourth time resource, the PSS is detected again by using the third antenna port.
- Step 1004 In the fifth time resource, use the fourth antenna port to detect the SSS again.
- Step 1005 Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
- the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
- Step 1006 At the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
- the PBCH can be detected using the channel estimation results of the PSS and the SSS.
- the third antenna port corresponds to the first antenna port of the network side device
- the fourth antenna port corresponds to the second antenna port of the network side device.
- the time resource refer to the first embodiment to the fourth embodiment. Corresponding descriptions are not described here, and the same beneficial effects can be achieved.
- the SSS includes a first random sequence and a second random sequence
- the detecting the SSS by using the third antenna port includes:
- Using the third antenna port detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
- the detecting the SSS again by using the fourth antenna port includes:
- the first random sequence is detected by the first preset frequency band, and the second random sequence is detected by the second preset frequency band.
- the first random sequence of detecting the SSS at different frequency resources using the same antenna port in the second time resource, and the second detecting the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented.
- a random sequence is used to detect the PBCH signal using two antenna ports at a third time.
- the SSS signal in the synchronous access signal group (SS block) can be repeatedly detected using the dual antenna port, and the time and frequency synchronization accuracy is improved.
- the user terminal detects the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- using the channel estimation result using the third antenna port and the fourth antenna port to detect the PBCH signal, including:
- the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
- the PBCH signal is detected on the third time resource by using the space frequency diversity or the space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first OFDM symbol in the slot
- the second time resource is a number in the slot. 2 OFDM symbols
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the 6th OFDM symbol in the slot
- the fifth time The resource is the 7th OFDM symbol in the slot.
- the PSS is detected by using a third antenna port in a first time resource; the SSS is detected by using a third antenna port in a second time resource; and the third antenna port is used in a fourth time resource. Detecting the PSS again; detecting the SSS again using the fourth antenna port in the fifth time resource; performing time and frequency synchronization using the detected PSS and the SSS, using the detected SSS Channel estimation, obtaining a channel estimation result; and detecting, at the third time resource, the PBCH signal by using the third antenna port and the fourth antenna port by using the channel estimation result.
- PSS and SSS are detected multiple times, the detection performance of PSS and SSS and the synchronization precision of time and frequency are improved, the overhead of pilot signals is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is detected twice, the performance of the channel estimation is improved.
- FIG. 11 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG.
- the method includes the following steps:
- Step 1101 In the first time resource, use the third antenna port to detect the PSS.
- the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
- Step 1102 In the second time resource, use the fourth antenna port to detect the SSS.
- the user terminal may detect the SSS on a frequency resource in a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the SSS. For example, if the first sending SSS is sent by the second antenna port in the second time, the user terminal can detect the SSS in the second time resource using the fourth antenna port corresponding to the second antenna port.
- Step 1103 At the fourth time resource, the PSS is detected again by using the third antenna port.
- Step 1104 In the fifth time resource, use the third antenna port to detect the SSS again.
- Step 1105 Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
- the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
- Step 1106 In the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
- the PBCH can be detected using the channel estimation results of the PSS and the SSS.
- the third antenna port corresponds to the first antenna port of the network side device
- the fourth antenna port corresponds to the second antenna port of the network side device.
- the time resource refer to the first embodiment to the fourth embodiment. Corresponding descriptions are not described here, and the same beneficial effects can be achieved.
- the SSS includes a first random sequence and a second random sequence
- the detecting the SSS by using the fourth antenna port includes:
- Using the fourth antenna port detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
- the detecting the SSS again by using the third antenna port includes:
- the first random sequence is detected by the first preset frequency band, and the second random sequence is detected by the second preset frequency band.
- the first random sequence of detecting the SSS at different frequency resources using the same antenna port in the second time resource, and the second detecting the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented.
- a random sequence is used to detect the PBCH signal using two antenna ports at a third time.
- the SSS signal in the synchronous access signal group (SS block) can be repeatedly detected using the dual antenna port, and the time and frequency synchronization accuracy is improved.
- the user terminal detects the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- using the channel estimation result using the third antenna port and the fourth antenna port to detect the PBCH signal, including:
- the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
- the PBCH signal is detected on the third time resource by using the space frequency diversity or the space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first OFDM symbol in the slot
- the second time resource is a number in the slot. 2 OFDM symbols
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the 6th OFDM symbol in the slot
- the fifth time The resource is the 7th OFDM symbol in the slot.
- the PSS is detected by using a third antenna port in a first time resource
- the SSS is detected by using a fourth antenna port in a second time resource
- the third antenna port is used in a fourth time resource.
- PSS and SSS are detected multiple times, the detection performance of PSS and SSS and the synchronization precision of time and frequency are improved, the overhead of pilot signals is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is detected twice, the performance of the channel estimation is improved.
- FIG. 12 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG.
- the method includes the following steps:
- Step 1201 In the first time resource, use the third antenna port to detect the PSS.
- the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
- Step 1202 In the second time resource, use the third antenna port and the fourth antenna port to detect the SSS.
- the user terminal may detect the SSS on the frequency resource in the corresponding time resource by using an antenna port corresponding to the antenna port used by the network side device to send the SSS. For example, if the first sending SSS is sent by the first antenna port and the second antenna port in the second time, the user terminal can use the third antenna port and the fourth antenna corresponding to the first antenna port in the second time resource. The port detects the SSS.
- Step 1203 At the fourth time resource, the PSS is detected again by using the third antenna port.
- Step 1204 In the fifth time resource, use the fourth antenna port and the third antenna port to detect the SSS again.
- Step 1205 Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
- the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
- Step 1206 At the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
- the PBCH can be detected using the channel estimation results of the PSS and the SSS.
- the SSS includes a first random sequence and a second random sequence
- detecting the SSS by using the third antenna port and/or the fourth antenna port including:
- using the fourth antenna port and/or the third antenna port to detect the SSS again including:
- a first random sequence for detecting SSS in different frequency resources using different antenna ports in a second time resource, and a second random detection of SSS in different frequency resources using different antenna ports in a fifth time resource may be implemented.
- the sequence while at the third time, uses two antenna ports to transmit the PBCH signal.
- the SSS can be repeatedly detected twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation.
- the switching of the antenna ports by the two sequences of the SSS of different frequency resources (for example, the low frequency band and the high frequency band) in the first transmission and the second detection further improves the performance of the channel estimation.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- using the channel estimation result using the third antenna port and the fourth antenna port to detect the PBCH signal, including:
- the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
- the PBCH signal is detected on the third time resource by using the space frequency diversity or the space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first OFDM symbol in the slot
- the second time resource is a number in the slot. 2 OFDM symbols
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the 6th OFDM symbol in the slot
- the fifth time The resource is the 7th OFDM symbol in the slot.
- the PSS is detected by using a third antenna port in a first time resource
- the SSS is detected by using a third antenna port and a fourth antenna port in a second time resource
- Detecting the PSS again using a third antenna port detecting the SSS again using a fourth antenna port and a third antenna port at a fifth time resource
- at the third time resource using the channel estimation result, detecting the PBCH signal by using the third antenna port and the fourth antenna port.
- the detecting SSS and the transmitting PBCH signal are transmitted using the same dual antenna port, it is advantageous for the user terminal to detect the PBCH signal using the channel estimation of the detected SSS to improve the detection performance.
- the first random sequence of the SSS may be detected at different frequency resources using the different antenna ports in the second time resource, and the second random sequence of the SSS may be detected in different frequency resources using the different antenna ports in the fifth time resource, and The PBCH signal is detected using two antenna ports at a third time.
- the SSS can be repeatedly detected twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation.
- detecting the switching of the antenna port by the two sequences of the SSS of different frequency resources in the first detection and the second detection further improves the performance of the channel estimation.
- FIG. 13 is a structural diagram of a network side device according to an embodiment of the present disclosure, which can implement details of a method for transmitting a synchronization access signal group in the first to fourth embodiments, and achieve the same Effect.
- the network side device is configured to synchronize the transmission of the access signal level, and the synchronization access signal group includes a PSS, an SSS, and a PBCH signal.
- the network side device 1300 includes: a first sending module 1301.
- the first sending module 1301 is configured to send the PSS by using a first antenna port in a first time resource
- the second sending module 1302 is configured to send, by using the first antenna port and/or the second antenna port, the SSS in the second time resource;
- the third sending module 1303 is configured to send, by using the first antenna port and the second antenna port, the PBCH signal in the third time resource;
- the fourth sending module 1304 is configured to send the PSS again by using the first antenna port in the fourth time resource.
- the fifth sending module 1305 is configured to send the SSS again by using the second antenna port and/or the first antenna port in the fifth time resource.
- the SSS when the SSS is sent by using the first antenna port in the second time resource, the SSS is sent again by using the second antenna port in the fifth time resource;
- the SSS When the SSS is transmitted using the second antenna port in the second time resource, the SSS is retransmitted using the first antenna port in the fifth time resource.
- the SSS includes a first random sequence and a second random sequence
- the second sending module 1302 is configured to: in the second time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and occupy the second preset frequency band to send the second random sequence. Or specifically for using the second antenna port in the second time resource, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;
- the fourth sending module 1304 is configured to: in the fourth time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and occupy the second preset frequency band to send the second random sequence. Or specifically used in the fourth time resource, using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence.
- the SSS includes a first random sequence and a second random sequence
- the second sending module 1302 is configured to: in the second time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and use the second antenna port to occupy the second preset frequency band. Transmitting the second random sequence;
- the fifth sending module 1305 is configured to: in the fifth time resource, use the second antenna port, occupy the first preset frequency band, send the first random sequence, and use the first antenna port to occupy the second preset frequency band. Sending the second random sequence.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- the third sending module 1303 is configured to send, by using the first antenna port and the second antenna port, the PBCH signal by using space frequency diversity or space-time diversity in the third time resource.
- the third sending module 1303 is configured to perform precoding on the first PBCH information symbol and the second PBCH information symbol, and send the first antenna port and the second antenna port in the third time resource. Precoding results.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot
- the second time The resource is the second OFDM symbol in the slot
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the sixth in the slot.
- An OFDM symbol, the fifth time resource being a seventh OFDM symbol in the slot.
- the network side device 1300 may be the network side device in any of the method embodiments in the embodiment of the disclosure, and any implementation manner of the network side device in the method embodiment in the embodiment of the disclosure It can be implemented by the above network side device 1300 in this embodiment, and achieve the same beneficial effects, and details are not described herein again.
- FIG. 14 is a structural diagram of a user terminal according to an embodiment of the present disclosure, which can implement details of a method for receiving a synchronization access signal group in the fifth embodiment to the eighth embodiment, and achieve the same effect.
- the user terminal is configured to synchronize the reception of the access signal group, and the synchronization access signal group includes a PSS, an SSS, and a PBCH signal.
- the user terminal 1400 includes: a first detection module 1401, and a second detection.
- the first detecting module 1401 is configured to detect the PSS by using a third antenna port in the first time resource;
- a second detecting module 1402 configured to detect the SSS by using a third antenna port and/or a fourth antenna port in a second time resource;
- the third detecting module 1403 is configured to detect the PSS again by using the third antenna port in the fourth time resource;
- the fourth detecting module 1404 is configured to detect the SSS again by using the fourth antenna port and/or the third antenna port in the fifth time resource;
- a synchronization module 1405, configured to perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result;
- the fifth detecting module 1406 is configured to detect, by using the channel estimation result, the PBCH signal by using the third antenna port and the fourth antenna port in the third time resource.
- the SSS when the SSS is detected by using the third antenna port in the second time resource, the SSS is detected again by using the fourth antenna port in the fifth time resource;
- the SSS is detected using the fourth antenna port at the second time resource
- the SSS is detected again using the third antenna port at the fifth time resource.
- the SSS includes a first random sequence and a second random sequence
- the second detecting module 1402 is configured to: in the second time resource, use the third antenna port, detect the first random sequence by using the first preset frequency band, and detect the second random sequence by using the second preset frequency band. Or specifically for detecting, in the second time resource, using the fourth antenna port, detecting the first random sequence by using the first preset frequency band, and detecting the second random sequence by using the second preset frequency band;
- the fourth detecting module 1404 is configured to detect, by using a third antenna port, the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band; or specifically for using The fourth antenna port detects the first random sequence by using a first preset frequency band, and detects the second random sequence by using a second preset frequency band.
- the SSS includes a first random sequence and a second random sequence
- the second detecting module 1402 is configured to: in the second time resource, use the third antenna port, detect the first random sequence by using the first preset frequency band, and use the fourth antenna port to pass the second preset frequency band Detecting the second random sequence;
- the fourth detecting module 1404 is configured to: in the fifth time resource, use the fourth antenna port, detect the first random sequence by using the first preset frequency band, and use the third antenna port to pass the second preset frequency band. The second random sequence is detected.
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- the fifth detecting module 1406 is configured to detect, by using the channel estimation result, the third antenna port and the fourth antenna port by using a space frequency diversity or a space time diversity manner by using the channel estimation result.
- the PBCH signal is configured to detect, by using the channel estimation result, the third antenna port and the fourth antenna port by using a space frequency diversity or a space time diversity manner by using the channel estimation result.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot
- the second time The resource is the second OFDM symbol in the slot
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the sixth in the slot.
- the OFDM symbol, the fifth time resource is a seventh OFDM symbol in the slot.
- the user terminal 1400 may be a user terminal in any embodiment of the method in the embodiment of the disclosure, and any implementation manner of the user terminal in the method embodiment of the disclosure may be used in this embodiment.
- the foregoing user terminal 1400 in the embodiment is implemented, and the same beneficial effects are achieved, and details are not described herein again.
- FIG. 15 is a structural diagram of a network side device according to an embodiment of the present disclosure, which can implement details of a method for transmitting a synchronization access signal group in the first embodiment to the second embodiment, and achieve the same effect.
- the synchronous access signal group includes PSS, SSS, and PBCH signals.
- the network side device 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, a user interface 1504, and a bus interface, where:
- the processor 1501 is configured to read a program in the memory 1503 and perform the following process:
- the SSS is transmitted again using the second antenna port and/or the first antenna port.
- the transceiver 1502 is configured to receive and transmit data under the control of the processor 1501, and the transceiver 1502 includes at least two antenna ports.
- the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1501 and various circuits of memory represented by memory 1503.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
- the bus interface provides an interface.
- Transceiver 1502 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
- the user interface 1504 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1503 can store data used by the processor 1501 when performing operations.
- the SSS when the SSS is sent by using the first antenna port in the second time resource, the SSS is sent again by using the second antenna port in the fifth time resource;
- the SSS When the SSS is transmitted using the second antenna port in the second time resource, the SSS is retransmitted using the first antenna port in the fifth time resource.
- the SSS includes a first random sequence and a second random sequence
- the sending, by the processor 1501, the SSS by using the first antenna port includes:
- the transmitting, by the processor 1501, using the second antenna port to send the SSS includes:
- the SSS performed by the processor 1501 to transmit the SSS again using the first antenna port includes:
- Resending the SSS by using the second antenna port performed by the processor 1501 includes:
- the SSS includes a first random sequence and a second random sequence
- the transmitting, by the processor 1501, the SSS, using the first antenna port and/or the second antenna port, in the second time resource includes:
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- the third time resource that is executed by the processor 1501 is used to send the PBCH signal by using the first antenna port and the second antenna port, including:
- the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
- the transmitting, by the processor 1501, the PBCH signal by using a first antenna port and a second antenna port, using a first antenna port and a second antenna port, by using space frequency diversity or space-time diversity includes:
- Precoding the first PBCH information symbol and the second PBCH information symbol and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot
- the second time The resource is the second OFDM symbol in the slot
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the sixth in the slot.
- An OFDM symbol, the fifth time resource being a seventh OFDM symbol in the slot.
- the network side device 1500 may be the network side device in any of the method embodiments in the embodiment of the disclosure, and any implementation manner of the network side device in the method embodiment in the embodiment of the disclosure It can be implemented by the above network side device 1500 in this embodiment, and achieve the same beneficial effects, and details are not described herein again.
- FIG. 16 is a structural diagram of a user terminal according to an embodiment of the present disclosure, which can implement the details of the method for receiving a synchronization signal in the third embodiment, and achieve the same effect, wherein the synchronization access signal group includes a PSS. , SSS and PBCH signals.
- the user terminal 1600 includes at least one processor 1601, a memory 1602, at least one network interface 1604, and a user interface 1603.
- the various components in terminal 1600 are coupled together by a bus system 1605.
- the bus system 1605 is used to implement connection communication between these components.
- the bus system 1605 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are labeled as bus system 1605 in FIG.
- the user interface 1603 may include a display, a keyboard, or a pointing device (eg, a mouse, a track ball, a touch pad, or a touch screen, etc.).
- a pointing device eg, a mouse, a track ball, a touch pad, or a touch screen, etc.
- the memory 1602 in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
- the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
- RAM Random Access Memory
- many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
- SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- ESDRAM Enhanced Synchronous Dynamic Random Access Memory
- SDRAM Synchronous Connection Dynamic Random Access Memory
- DRRAM direct memory bus random access memory
- the memory 1602 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 16021 and an application 16022.
- the operating system 16021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
- the application 16022 includes various applications, such as a media player (Media Player), a browser, and the like, for implementing various application services.
- a program implementing the method of the embodiments of the present disclosure may be included in the application 16022.
- the processor 1601 by calling the program or instruction stored in the memory 1602, specifically, the program or instruction stored in the application 16022, the processor 1601 is configured to:
- the PBCH signal is detected using the third antenna port and the fourth antenna port.
- the method disclosed in the above embodiments of the present disclosure may be applied to the processor 1601 or implemented by the processor 1601.
- the processor 1601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1601 or an instruction in a form of software.
- the processor 1601 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA Field Programmable Gate Array
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 1602, and the processor 1601 reads the information in the memory 1602 and completes the steps of the above method in combination with its hardware.
- the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described herein In an electronic unit or a combination thereof.
- ASICs Application Specific Integrated Circuits
- DSP Digital Signal Processing
- DSP Device Digital Signal Processing Equipment
- PLD programmable Programmable Logic Device
- FPGA Field-Programmable Gate Array
- the techniques described herein can be implemented by modules (eg, procedures, functions, and so on) that perform the functions described herein.
- the software code can be stored in memory and executed by the processor.
- the memory can be implemented in the processor or external to the processor.
- the SSS when the SSS is detected by using the third antenna port in the second time resource, the SSS is detected again by using the fourth antenna port in the fifth time resource;
- the SSS is detected using the fourth antenna port at the second time resource
- the SSS is detected again using the third antenna port at the fifth time resource.
- the SSS includes a first random sequence and a second random sequence
- Detecting the SSS by using the third antenna port performed by the processor 1601 includes:
- Using the third antenna port detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
- the detecting, by the processor 1601, using the fourth antenna port to detect the SSS includes:
- Using the fourth antenna port detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
- the SSS performed by the processor 1601 to detect the SSS again using the third antenna port includes:
- Using the third antenna port detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
- the SSS performed by the processor 1601 to detect the SSS again using the fourth antenna port includes:
- the fourth antenna port is used again, the first random sequence is detected by the first preset frequency band, and the second random sequence is detected by the second preset frequency band.
- the SSS includes a first random sequence and a second random sequence
- the detecting, by the processor 1601, the SSS, using the third antenna port and/or the fourth antenna port, in the second time resource includes:
- the first preset frequency band is lower than a preset threshold
- the second preset frequency band is higher than a preset threshold
- the third time resource is executed by the processor 1601, and the PBCH signal is detected by using the third antenna port and the fourth antenna port by using the channel estimation result, including:
- the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
- the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
- the time resource corresponding to the synchronization access signal group is a slot
- the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot
- the second time The resource is the second OFDM symbol in the slot
- the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot
- the fourth time resource is the sixth in the slot.
- An OFDM symbol, the fifth time resource being a seventh OFDM symbol in the slot.
- the user terminal 1600 may be a user terminal in any embodiment of the method in the embodiment of the disclosure, and any implementation manner of the user terminal in the method embodiment of the disclosure may be used in this embodiment.
- the above-mentioned user terminal 1600 in the embodiment is implemented, and the same beneficial effects are achieved, and details are not described herein again.
- the disclosed apparatus and method may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present disclosure.
- each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the portion of the technical solution of the present disclosure that contributes in essence or to the prior art or the portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
- the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
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Abstract
Provided in the present disclosure are a method for sending a synchronous access signal group, a method for receiving the same, a related device and a system, the method comprising: sending a primary synchronization signal (PSS) using a first antenna port in a first time resource; sending a secondary synchronization signal (SSS) using the first antenna port and/or a second antenna port in a second time resource; sending a physical broadcast channel (PBCH) signal using the first antenna port and the second antenna port in a third time resource; sending the PSS again using the first antenna port in a fourth time resource; and sending the SSS again using the second antenna port and/or the first antenna port in a fifth time resource.
Description
相关申请的交叉引用Cross-reference to related applications
本申请主张在2017年2月10日在中国提交的中国专利申请号No.201710073848.0的优先权,其全部内容通过引用包含于此。The present application claims priority to Chinese Patent Application No. 201710073848.0, filed on Jan.
本公开涉及通信技术领域,尤其涉及一种同步接入信号组的发送方法、接收方法、相关设备及***。The present disclosure relates to the field of communications technologies, and in particular, to a method, a receiving method, a related device, and a system for transmitting a synchronous access signal group.
在通信***中,用户终端在初始接入时,需要检测主同步信号(PSS,Primary Synchronization Signal)、次同步信号(SSS,Secondary Synchronization Signal)来实现初始的时间和频率同步,然后检测物理广播信道(PBCH,Physical Broadcast Channel)信号。In the communication system, the user terminal needs to detect a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) to achieve initial time and frequency synchronization, and then detect the physical broadcast channel. (PBCH, Physical Broadcast Channel) signal.
然而,相关技术中的网络侧设备通常使用一个天线端口,分别发送一次PSS和SSS,用户终端进行序列检测,导致PSS和SSS的检测性能较差。However, the network side device in the related art usually uses one antenna port to transmit the PSS and the SSS once, and the user terminal performs sequence detection, which results in poor detection performance of the PSS and the SSS.
发明内容Summary of the invention
本公开实施例提供一种同步接入信号组的发送方法、接收方法、相关设备及***,以解决PSS和SSS的检测性能较差的问题。The embodiments of the present disclosure provide a method, a receiving method, a related device, and a system for transmitting a synchronization access signal group, so as to solve the problem that the detection performance of the PSS and the SSS is poor.
第一方面,本公开实施例提供了一种同步接入信号组的发送方法,所述同步接入信号组包括PSS、SSS和PBCH信号,所述方法包括:In a first aspect, an embodiment of the present disclosure provides a method for transmitting a synchronization access signal group, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, and the method includes:
在第一时间资源,使用第一天线端口发送所述PSS;Transmitting, by the first antenna port, the PSS in the first time resource;
在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;Transmitting, by the first antenna port and/or the second antenna port, the SSS in the second time resource;
在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;Transmitting, by the first antenna port and the second antenna port, the PBCH signal in the third time resource;
在第四时间资源,使用第一天线端口再次发送所述PSS;Transmitting the PSS again using the first antenna port in the fourth time resource;
在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。At the fifth time resource, the SSS is transmitted again using the second antenna port and/or the first antenna port.
第二方面,本公开实施例还提供一种同步接入信号组的接收方法,所述同步接入信号组包括PSS、SSS和PBCH信号,所述方法包括:In a second aspect, an embodiment of the present disclosure further provides a method for receiving a synchronization access signal group, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, and the method includes:
在第一时间资源,使用第三天线端口检测所述PSS;In the first time resource, detecting the PSS by using a third antenna port;
在第二时间资源,使用第三天线端口和/或第四天线端口,检测所述SSS;In the second time resource, using the third antenna port and/or the fourth antenna port, detecting the SSS;
在第四时间资源,再次使用第三天线端口检测所述PSS;In the fourth time resource, detecting the PSS again by using the third antenna port;
在第五时间资源,再次使用第四天线端口和/或第三天线端口,检测所述SSS;In the fifth time resource, using the fourth antenna port and/or the third antenna port again, detecting the SSS;
利用检测到的所述PSS和所述SSS,进行时间和频率同步;Performing time and frequency synchronization using the detected PSS and the SSS;
利用检测到所述SSS进行信道估计,获取信道估计结果;Obtaining a channel estimation result by detecting the SSS for channel estimation;
在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected using the third antenna port and the fourth antenna port.
第三方面,本公开实施例还提供一种网络侧设备,用于同步接入信号级的发送,所述同步接入信号组包括PSS、SSS和PBCH信号,所述网络侧设备包括:In a third aspect, the embodiment of the present disclosure further provides a network side device, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, where the network side device includes:
第一发送模块,用于在第一时间资源,使用第一天线端口发送所述PSS;a first sending module, configured to send the PSS by using a first antenna port in a first time resource;
第二发送模块,用于在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;a second sending module, configured to send the SSS by using a first antenna port and/or a second antenna port in a second time resource;
第三发送模块,用于在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;a third sending module, configured to send the PBCH signal by using the first antenna port and the second antenna port in the third time resource;
第四发送模块,用于在第四时间资源,使用第一天线端口再次发送所述PSS;a fourth sending module, configured to send the PSS again by using the first antenna port in the fourth time resource;
第五发送模块,用于在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。And a fifth sending module, configured to send the SSS again by using the second antenna port and/or the first antenna port in the fifth time resource.
第四方面,本公开实施例还提供一种用户终端,用于同步接入信号组的接收,所述同步接入信号组包括PSS、SSS和PBCH信号,所述用户终端包括:In a fourth aspect, the embodiment of the present disclosure further provides a user terminal, where the synchronization access signal group includes a PSS, an SSS, and a PBCH signal, where the user terminal includes:
第一检测模块,用于在第一时间资源,使用第三天线端口检测所述PSS;a first detecting module, configured to detect the PSS by using a third antenna port in a first time resource;
第二检测模块,用于在第二时间资源,使用第三天线端口和/或第四天线端口,检测所述SSS;a second detecting module, configured to detect the SSS by using a third antenna port and/or a fourth antenna port in a second time resource;
第三检测模块,用于在第四时间资源,再次使用第三天线端口检测所述 PSS;a third detecting module, configured to detect the PSS by using a third antenna port again in the fourth time resource;
第四检测模块,用于在第五时间资源,再次使用第四天线端口和/或第三天线端口,检测所述SSS;a fourth detecting module, configured to detect the SSS by using the fourth antenna port and/or the third antenna port again in the fifth time resource;
同步模块,用于利用检测到的所述PSS和所述SSS,进行时间和频率同步;a synchronization module, configured to perform time and frequency synchronization by using the detected PSS and the SSS;
估计模块,用于利用检测到所述SSS进行信道估计,获取信道估计结果;An estimation module, configured to perform channel estimation by using the detected SSS, to obtain a channel estimation result;
第五检测模块,用于在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。And a fifth detecting module, configured to detect the PBCH signal by using the third antenna port and the fourth antenna port by using the channel estimation result at the third time resource.
第五方面,本公开实施例还提供一种网络侧设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现第一方面中同步接入信号组的发送方法中的步骤。In a fifth aspect, an embodiment of the present disclosure further provides a network side device, including: a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program is processed The steps in the method of transmitting the synchronous access signal group in the first aspect are implemented when the device is executed.
第六方面,本公开实施例还提供一种移动终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现第二方面中同步接入信号组的接收方法中的步骤。In a sixth aspect, an embodiment of the present disclosure further provides a mobile terminal, including: a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program is used by the processor The steps in the receiving method of the synchronous access signal group in the second aspect are implemented when executed.
第七方面,本公开实施例还提供一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现第一方面中同步接入信号组的发送方法中的步骤。In a seventh aspect, the embodiment of the present disclosure further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and when the computer program is executed by the processor, the synchronization access signal group in the first aspect is implemented. The steps in the sending method.
第八方面,本公开实施例还提供一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现第二方面中同步接入信号组的接收方法中的步骤。In an eighth aspect, an embodiment of the present disclosure further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, where the computer program is executed by a processor to implement a synchronization access signal group in the second aspect. The steps in the receiving method.
这样,本公开实施例中,在第一时间资源,使用第一天线端口发送所述PSS;在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;在第四时间资源,使用第一天线端口再次发送所述PSS;在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS,由于多次发送PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。In this embodiment, in the embodiment of the present disclosure, the PSS is sent by using the first antenna port in the first time resource, and the SSS is sent by using the first antenna port and/or the second antenna port in the second time resource; a time resource, using the first antenna port and the second antenna port to transmit the PBCH signal; in the fourth time resource, using the first antenna port to transmit the PSS again; in the fifth time resource, using the second antenna port and/or The first antenna port transmits the SSS again, and the PSS and the SSS are sent multiple times, thereby improving the detection performance of PSS and SSS and the synchronization precision of time and frequency, saving the overhead of the pilot signal, and improving the spectrum utilization efficiency of the system. .
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings used in the description of the embodiments of the present disclosure will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.
图1是一种同步接入信号组的传输***的结构图;1 is a structural diagram of a transmission system of a synchronous access signal group;
图2是本公开第一实施例提供的一种同步接入信号组的发送方法的流程图;2 is a flowchart of a method for transmitting a synchronization access signal group according to a first embodiment of the present disclosure;
图3是本公开第二实施例提供的一种同步接入信号组的发送方法的流程图;3 is a flowchart of a method for transmitting a synchronization access signal group according to a second embodiment of the present disclosure;
图4是本公开第二实施例提供的一种同步接入信号组的传输示意图;4 is a schematic diagram of transmission of a synchronous access signal group according to a second embodiment of the present disclosure;
图5是本公开第三实施例提供的一种同步接入信号组的发送方法的流程图;FIG. 5 is a flowchart of a method for transmitting a synchronization access signal group according to a third embodiment of the present disclosure;
图6是本公开第三实施例提供的一种同步接入信号组的传输示意图;6 is a schematic diagram of transmission of a synchronous access signal group according to a third embodiment of the present disclosure;
图7是本公开第四实施例提供的一种同步接入信号组的发送方法的流程图;7 is a flowchart of a method for transmitting a synchronization access signal group according to a fourth embodiment of the present disclosure;
图8是本公开第四实施例提供的另一种同步接入信号组的传输示意图;FIG. 8 is a schematic diagram of another synchronous access signal group transmission according to a fourth embodiment of the present disclosure; FIG.
图9是本公开第五实施例提供的一种同步接入信号组的接收方法的流程图;FIG. 9 is a flowchart of a method for receiving a synchronization access signal group according to a fifth embodiment of the present disclosure;
图10是本公开第六实施例提供的一种同步接入信号组的接收方法的流程图;FIG. 10 is a flowchart of a method for receiving a synchronization access signal group according to a sixth embodiment of the present disclosure;
图11是本公开第七实施例提供的一种同步接入信号组的接收方法的流程图;11 is a flowchart of a method for receiving a synchronization access signal group according to a seventh embodiment of the present disclosure;
图12是本公开第八实施例提供的一种同步接入信号组的接收方法的流程图;FIG. 12 is a flowchart of a method for receiving a synchronization access signal group according to an eighth embodiment of the present disclosure;
图13是本公开第九实施例提供的网络侧设备的结构图;FIG. 13 is a structural diagram of a network side device according to a ninth embodiment of the present disclosure;
图14是本公开第十实施例提供的用户终端的结构图;FIG. 14 is a structural diagram of a user terminal according to a tenth embodiment of the present disclosure;
图15是本公开第十一实施例提供的网络侧设备的结构图;15 is a structural diagram of a network side device according to an eleventh embodiment of the present disclosure;
图16是本公开第十二实施例提供的用户终端的结构图。FIG. 16 is a structural diagram of a user terminal according to a twelfth embodiment of the present disclosure.
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。The technical solutions in the embodiments of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.
参见图1,图1为本公开实施例可应用的一种同步接入信号组的传输***的结构图,如图1所示,包括用户终端11和网络侧设备12,其中,用户终端11可以是UE(User Equipment),例如:可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant,简称PDA)、移动上网装置(Mobile Internet Device,MID)或可穿戴式设备(Wearable Device)等终端侧设备,需要说明的是,在本公开实施例中并不限定用户终端11的具体类型。用户终端11可以与网络侧设备12建立通信,其中,附图中的网络可以表示用户终端11与网络侧设备12无线建立通信,网络侧设备12可以是传输接收点(TRP,Transmission Reception Point),或者可以是基站,基站可以是宏站,如LTE eNB、5G NRNB等。或者网络侧设备12可以是接入点(AP,access point)。Referring to FIG. 1 , FIG. 1 is a structural diagram of a transmission system of a synchronous access signal group, which is applicable to an embodiment of the present disclosure. As shown in FIG. 1 , the user terminal 11 and the network side device 12 are included. It is a User Equipment (UE), for example, it can be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), and a mobile Internet device (Mobile Internet Device, The terminal side device such as the MID) or the wearable device, it should be noted that the specific type of the user terminal 11 is not limited in the embodiment of the present disclosure. The user terminal 11 can establish communication with the network side device 12, wherein the network in the figure can indicate that the user terminal 11 and the network side device 12 establish wireless communication, and the network side device 12 can be a Transmission Reception Point (TRP). Or it may be a base station, and the base station may be a macro station, such as an LTE eNB, a 5G NRNB, or the like. Or the network side device 12 may be an access point (AP).
需要说明的是,在本公开实施例中并不限定网络侧设备12的具体类型,用户终端11和网络侧设备12的具体功能将通过以下多个实施例进行具体描述。It should be noted that the specific types of the network side device 12 are not limited in the embodiment of the present disclosure. The specific functions of the user terminal 11 and the network side device 12 will be specifically described by using the following embodiments.
第一实施例First embodiment
参见图2,图2是本公开实施例提供的一种同步接入信号组的发送方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图2所示,包括以下步骤:Referring to FIG. 2, FIG. 2 is a flowchart of a method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. 2, including The following steps:
步骤201、在第一时间资源,使用第一天线端口发送所述PSS。Step 201: Send, at the first time resource, the PSS by using a first antenna port.
其中,上述第一时间资源可以是某一子帧或者一slot中的一个或者多个正交频分复用技术(Orthogonal Frequency Division Multiplexing,OFDM)符号。另外,步骤201中的第一天线端口可以是网络侧设备包括的天线端口中的任一天线端口。The first time resource may be one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols in a certain subframe or a slot. In addition, the first antenna port in step 201 may be any one of the antenna ports included in the network side device.
步骤202、在第二时间资源,使用第一天线端口和/或第二天线端口发送 所述SSS。Step 202: Send, at the second time resource, the SSS by using the first antenna port and/or the second antenna port.
上述第二时间资源可以是某一子帧或者一slot中的一个或者多个OFDM符号。另外,使用第一天线端口和/或第二天线端口发送所述SSS,可以是在第二时间资源,可以使用第一天线端口和第二天线端口中的一个或者两个天线端口发送所述SSS。The second time resource may be a subframe or one or more OFDM symbols in a slot. In addition, sending the SSS by using the first antenna port and/or the second antenna port may be, in a second time resource, the SSS may be sent using one or two antenna ports of the first antenna port and the second antenna port. .
步骤203、在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号。Step 203: Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
其中,PBCH信号可以包括***信息,例如:主信息块(MIB,Master Information Block),当然也可以是其他***信息,对此本公开实施例不作限定。The PBCH signal may include system information, for example, a master information block (MIB), and may be other system information, which is not limited in this embodiment.
步骤204、在第四时间资源,使用第一天线端口再次发送所述PSS。Step 204: At the fourth time resource, send the PSS again using the first antenna port.
其中,步骤204使用的天线端口可以是与步骤201使用的天线端口为同一个天线端口。The antenna port used in step 204 may be the same antenna port as the antenna port used in step 201.
步骤205、在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。Step 205: At the fifth time resource, send the SSS again by using the second antenna port and/or the first antenna port.
其中,步骤205可以参见步骤202的相应说明,但当步骤202采用同一天线端口发送上述SSS时,步骤205也可以是采用同一天线端口发送上述SSS,但步骤205采用的天线端口与步骤202采用的天线端口可以是不同的天线端口。For the step 205, refer to the corresponding description of the step 202. However, when the step S202 uses the same antenna port to send the SSS, the step 205 may also use the same antenna port to send the SSS, but the antenna port used in step 205 is used in step 202. The antenna ports can be different antenna ports.
通过上述步骤多次发送PSS和SSS,从而提高了PSS和SSS的检测性能,即用户终端更加容易检测到PSS和SSS。另外,用户终端可以是检测到PSS和SSS后,可以利用检测到的PSS和SSS进行时间和频率的同步,且还可以利用检测到SSS进行信道估计,获取信道估计结果,然后,利用该信道估计结果使用第三天线端口和第四天线端口检测PBCH信号。若PBCH信号包括***信息时,用户终端还可以对检测到的PBCH信号解调,得到***信息。由于直接使用SSS进行信道估计,这样就不需要传输小区专有参考信号(Cell-specific Reference Signal,CRS),即可以省去了CRS的开销,提高了频谱效率。The PSS and the SSS are transmitted multiple times through the above steps, thereby improving the detection performance of the PSS and the SSS, that is, the user terminal is more likely to detect the PSS and the SSS. In addition, after detecting the PSS and the SSS, the user terminal may perform time and frequency synchronization by using the detected PSS and SSS, and may also perform channel estimation by using the detected SSS, obtain channel estimation result, and then use the channel estimation. As a result, the PBCH signal is detected using the third antenna port and the fourth antenna port. If the PBCH signal includes system information, the user terminal may also demodulate the detected PBCH signal to obtain system information. Since the channel estimation is directly performed by using the SSS, it is not necessary to transmit a Cell-specific Reference Signal (CRS), which can eliminate the overhead of the CRS and improve the spectrum efficiency.
需要说明的是,该方法可以应用于网络侧设备。It should be noted that the method can be applied to a network side device.
需要说明的是,本公开实施例中可以应用于大规模多输入多输出(MIMO,Multiple-Input Multiple-Out-put)***,也可以应用于全球移动通信***(GSM,Global System for Mobile Communication)在毫米波波段应用的场景,以及还可以应用于码分多址(CDMA,Code Division Multiple Access)技术在毫米波波段应用的场景。且在GSM或者CDMA场景中本公开实施例中,多次用不同的天线端口发送,从而提高了***的性能。It should be noted that the embodiment of the present disclosure can be applied to a MIMO (Multiple-Input Multiple-Out-put) system, and can also be applied to a Global System for Mobile Communication (GSM) system. The scenario applied in the millimeter wave band, and can also be applied to the scenario where the code division multiple access (CDMA) technology is applied in the millimeter wave band. And in the GSM or CDMA scenario, in the embodiment of the present disclosure, multiple antenna ports are used for transmission multiple times, thereby improving the performance of the system.
本公开实施例中,在第一时间资源,使用第一天线端口发送所述PSS;在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;在第四时间资源,使用第一天线端口再次发送所述PSS;在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。由于多次发送PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。In the embodiment of the present disclosure, the PSS is sent by using a first antenna port in a first time resource; the SSS is sent by using a first antenna port and/or a second antenna port in a second time resource; Transmitting the PBCH signal using the first antenna port and the second antenna port; transmitting the PSS again using the first antenna port at the fourth time resource; using the second antenna port and/or the first time at the fifth time resource The antenna port transmits the SSS again. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved.
第二实施例Second embodiment
参见图3,图3是本公开实施例提供的另一种同步接入信号组的发送方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图3所示,包括以下步骤:Referring to FIG. 3, FIG. 3 is a flowchart of another method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. Includes the following steps:
步骤301、在第一时间资源,使用第一天线端口发送所述PSS。Step 301: Send, at the first time resource, the PSS by using a first antenna port.
其中,上述第一时间资源可以是一slot或者一子帧中的第1个时间资源,例如:第一个OFDM符号,当然对此,本公开实施例不作限定。The foregoing first time resource may be a slot or a first time resource in a subframe, for example, a first OFDM symbol, and of course, the embodiment of the present disclosure is not limited thereto.
步骤302、在第二时间资源,使用第一天线端口发送所述SSS。Step 302: Send, at the second time resource, the SSS by using a first antenna port.
上述第二时间资源可以是与上述第一时间资源连续的时间资源,当然对此,本公开实施例不作限定。The foregoing second time resource may be a time resource that is continuous with the first time resource, and the embodiment of the present disclosure is not limited thereto.
步骤303、在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号。Step 303: Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
上述第三时间资源可以是与上述第二时间资源连续的时间资源,当然对此,本公开实施例不作限定。The foregoing third time resource may be a time resource that is continuous with the second time resource, and the embodiment of the present disclosure is not limited thereto.
可选的,所述在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号,包括:Optionally, in the third time resource, sending the PBCH signal by using the first antenna port and the second antenna port, including:
在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号。In the third time resource, the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
其中,上述在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号可以是,在第三时间资源中的相邻的至少两个子载波或者至少两个OFDM符号上发送的至少两个PBCH信号符号进行预编码,编码后的符号分别在第一天线端口和第二天线端口上发送。Wherein, in the foregoing third time resource, using the first antenna port and the second antenna port, using the space frequency diversity or the space time diversity manner, the sending the PBCH signal may be at least adjacent in the third time resource. The two subcarriers or at least two PBCH signal symbols transmitted on at least two OFDM symbols are precoded, and the encoded symbols are transmitted on the first antenna port and the second antenna port, respectively.
例如:上述在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号,包括:For example, in the foregoing third time resource, using the first antenna port and the second antenna port, the PBCH signal is sent by using space frequency diversity or space-time diversity, including:
对第一PBCH信息符号和第二PBCH信息符号进行预编码,并在第三时间资源,使用第一天线端口和第二天线端口,发送预编码结果。Precoding the first PBCH information symbol and the second PBCH information symbol, and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
例如:上述PBCH信号中两个天线端口的第i个信息符号x(i)=[x
(0)(i) x
(1)(i)]
T,经过空频分集或空时分集,发送的信息符号y(i)=[y
(0)(i) y
(1)(i)]
T和PBCH信号符号的预编码操作如下所示:
For example, the i-th information symbol x(i)=[x (0) (i) x (1) (i)] T of two antenna ports in the above PBCH signal is transmitted through space frequency diversity or space-time diversity. Information symbol y(i)=[y (0) (i) y (1) (i)] The precoding operations for the T and PBCH signal symbols are as follows:
其中,Re表示取复数的实部,Im表示取复数的虚步,j为虚数单位。Where Re represents the real part of the complex number, Im represents the virtual step of the complex number, and j is the imaginary unit.
需要说明的是,预编码的方式仅是一举例,本公开实施例中,并不限定PBCH信号的预编码方式。It should be noted that the precoding method is only an example. In the embodiment of the present disclosure, the precoding mode of the PBCH signal is not limited.
本公开实施例中,通过上述利用空频分集或者空时分集的方式,在第三时间资源上发送PBCH信号,从而可以提高PBCH的检测性能,即用户终端更加容易检测到PBCH信号。In the embodiment of the present disclosure, the PBCH signal is transmitted on the third time resource by means of space frequency diversity or space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
步骤304、在第四时间资源,使用第一天线端口再次发送所述PSS。Step 304: At the fourth time resource, send the PSS again using the first antenna port.
步骤305、在第五时间资源,使用第二天线端口再次发送所述SSS。Step 305: At the fifth time resource, send the SSS again by using the second antenna port.
其中,上述第五时间资源可以是与上述第四时间资源连续的时间资源,当然对此,本公开实施例不作限定。The fifth time resource may be a time resource that is continuous with the fourth time resource, and the embodiment of the present disclosure is not limited thereto.
通过上述步骤可以实现当在所述第二时间资源,使用第一天线端口发送所述SSS时,在所述第五时间资源,使用第二天线端口再次发送所述SSS;The foregoing step may be implemented, when the SSS is sent by using the first antenna port in the second time resource, and the SSS is sent again by using the second antenna port in the fifth time resource;
该实施方式中,可以实现两次发送SSS时,所使用的天线端口不同,从而提高了信道估计的性能。In this embodiment, when the SSS is transmitted twice, the antenna ports used are different, thereby improving the performance of channel estimation.
可选的,上述SSS包括第一随机序列和第二随机序列;Optionally, the foregoing SSS includes a first random sequence and a second random sequence;
所述使用第一天线端口发送所述SSS,包括:Transmitting the SSS by using the first antenna port includes:
使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the first antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;
所述使用第二天线端口再次发送所述SSS,包括:The transmitting the SSS again by using the second antenna port includes:
使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列。Using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence.
其中,上述第一随机序列和第二随机序列可以是网络侧设备随机生成,其中生成的方式可以是按照预设规则生成的。The first random sequence and the second random sequence may be randomly generated by the network side device, where the generated manner may be generated according to a preset rule.
该实施方式中,可以实现在第二时间资源使用同一天线端口在不同的频率资源发送SSS的第一随机序列,以及在第五时间资源使用另一天线端口在不同的频率资源发送SSS的第二随机序列,而在第三时间使用两个天线端口发送PBCH信号。这样就可以实现使用双天线端口重复发送同步接入信号组(SS block)中的SSS信号,提高了的时间和频率同步精度。然后使用得用户终端通过检测到的SSS进行信道估计来检测PBCH信号,就省去了导频信号的开销。提高了***的频谱利用效率。In this implementation manner, a first random sequence in which the SSS is transmitted at different frequency resources using the same antenna port in the second time resource, and a second transmission of the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented. A random sequence is used to transmit the PBCH signal using two antenna ports at a third time. In this way, the SSS signal in the synchronous access signal group (SS block) can be repeatedly transmitted using the dual antenna port, and the time and frequency synchronization accuracy is improved. Then, the user terminal is used to detect the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
例如:如图4所示,一个同步接入信号组(SS block)占用一个时隙(slot)发送进行举例,同步接入信号组(SS block)中的信号采用两个天线端口发送,其中的PSS和SSS要进行两次发送。PSS第一次发送使用天线端口0在slot中的第1个OFDM符号发送,PSS第二次仍然使用天线端口0在slot中的第6个OFDM符号发送。即PSS只使用一个天线端口发送。SSS第一次发送使用天线端口0在slot中的第2个OFDM符号发送,SSS第二次发送使用天线端口1在slot中的第7个OFDM符号发送。即SSS在两次发送时使用的天线端口进行了切换。PBCH则总是同时使用两个天线端口可以利用空频分集和空时分集的方式在第3,4和5个OFDM符号进行发送。这两个天线端口和 PSS,SSS使用的天线端口相同。整个SS block的信号结构如图4所示。这样,PBCH就可以通过SSS进行信道估计,从而就省去了CRS的开销,提高了频谱效率。For example, as shown in FIG. 4, a synchronization access signal group (SS block) occupies one slot (slot) transmission for example, and a signal in a synchronization access signal group (SS block) is sent by two antenna ports, where PSS and SSS are sent twice. The PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and the PSS transmits the sixth OFDM symbol in the slot using antenna port 0 for the second time. That is, the PSS is sent using only one antenna port. The SSS transmits the second OFDM symbol in the slot using antenna port 0 for the first time, and the seventh OFDM symbol transmission in the slot using antenna port 1 for the second transmission. That is, the SSS is switched on the antenna port used for two transmissions. The PBCH always uses two antenna ports simultaneously and can transmit in the 3rd, 4th and 5th OFDM symbols by means of space frequency diversity and space time diversity. These two antenna ports are the same as those used by PSS and SSS. The signal structure of the entire SS block is shown in Figure 4. In this way, the PBCH can perform channel estimation through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
需要说明的是,这里SSS由两个随机序列构成,随机序列0和随机序列1。SSS每次发送占用一个OFDM符号,其中序列0用频率较低的物理资源块(Physical Resource Block,PRB)或者资源块(Resource Block,RB)发送,序列1用频率较高的PRB发送。本方案里,在每一次SSS发送时,这两个序列都使用相同的端口发送。It should be noted that the SSS here is composed of two random sequences, a random sequence 0 and a random sequence 1. The SSS occupies one OFDM symbol each time, where the sequence 0 is transmitted with a lower frequency Physical Resource Block (PRB) or a Resource Block (RB), and the sequence 1 is transmitted with a higher frequency PRB. In this scheme, both sequences are sent using the same port each time SSS is sent.
可选的,本实施例中,上述第一预设频段低于预设阈值,上述第二预设频段高于预设阈值。Optionally, in this embodiment, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
其中,上述预设阈值可以是网络侧设备预先配置的,或者网络侧设备与用户终端预先协商的。The preset threshold may be pre-configured by the network side device, or pre-negotiated by the network side device and the user terminal.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
该实施方式中,可以实现同一同步接入信号组内的信号使用该同步接入信号组对应的时间资源发送,即可以实现不同的同步接入信号组内的信号使用不同的时间资源发送,从而能够提高同步接入信号组的检测性能。In this embodiment, the signals in the same synchronous access signal group can be transmitted by using time resources corresponding to the synchronous access signal group, that is, signals in different synchronized access signal groups can be transmitted using different time resources, thereby It can improve the detection performance of the synchronous access signal group.
优先的,与所述同步接入信号组对应的时间资源为时隙(slot),所述第一时间资源为所述slot中的第1个OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Preferably, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first OFDM symbol in the slot, and the second time resource is the slot. The second OFDM symbol, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the 6th OFDM symbol in the slot, The fifth time resource is the 7th OFDM symbol in the slot.
例如:一个同步接入信号组占用一个slot发送,其中的PSS和SSS要进行两次发送。PSS第一次发送使用天线端口0在slot中的第1个OFDM符号发送,且可以在该OFDM符号内的所有资源块(Resource Block,RB)上发送,PSS第二次发送使用天线端口1在slot中的第6个OFDM符号发送。SSS第一次发送使用天线端口0和/或1在slot中的第2个OFDM符号发送,SSS第二次发送使用天线端口1和/或0在slot中的第7个OFDM符号发送。而 PBCH信号则总是同时使用两个天线端口利用空频分集和空时分集的方式在第3,4和5个OFDM符号进行发送。这两个天线端口和PSS,SSS使用的天线端口相同。从而PBCH信号就可以通过SSS进行信道估计,从而就省去了CRS的开销,提高了频谱效率。For example, a synchronous access signal group occupies a slot transmission, and the PSS and SSS are sent twice. The PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and can be sent on all resource blocks (RBs) in the OFDM symbol, and the second transmission of PSS uses antenna port 1 at The sixth OFDM symbol in the slot is transmitted. The SSS transmits for the first time using antenna port 0 and/or 1 in the second OFDM symbol transmission in the slot, and the second SSS transmits the seventh OFDM symbol transmission in the slot using antenna port 1 and/or 0. The PBCH signal is always transmitted using the two antenna ports simultaneously in the 3rd, 4th and 5th OFDM symbols by means of space-frequency diversity and space-time diversity. These two antenna ports are the same as those used by PSS and SSS. Therefore, the PBCH signal can be channel-estimated through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
该举例中,通过上述设计,用户终端就可以通过双天线端口中不同的天线端口,在相应的OFDM符号检测同步接入信号组中的上述PSS和SSS信号,实现精确的时间和频率同步。然后通过SSS进行信道估计,以此来检测PBCH信号,从而获得***信息。In this example, through the above design, the user terminal can detect the PSS and SSS signals in the synchronous access signal group in the corresponding OFDM symbols through different antenna ports in the dual antenna ports, thereby achieving accurate time and frequency synchronization. Channel estimation is then performed through the SSS to detect the PBCH signal to obtain system information.
本实施例中,在第一时间资源,使用第一天线端口发送所述PSS;在第二时间资源,使用第一天线端口发送所述SSS;在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;在第四时间资源,使用第一天线端口再次发送所述PSS;在第五时间资源,使用第二天线端口再次发送所述SSS。由于多次发送PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。以及由于两次发送SSS时,所使用的天线端口不同,从而提高了信道估计的性能。In this embodiment, the PSS is sent by using the first antenna port in the first time resource, the SSS is sent by using the first antenna port in the second time resource, and the first antenna port is used in the third time resource. The second antenna port transmits the PBCH signal; at the fourth time resource, the PSS is retransmitted using the first antenna port; and at the fifth time resource, the SSS is retransmitted using the second antenna port. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is sent twice, the performance of the channel estimation is improved.
第三实施例Third embodiment
参见图5,图5是本公开实施例提供的另一种同步接入信号组的发送方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图5所示,包括以下步骤:Referring to FIG. 5, FIG. 5 is a flowchart of another method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. Includes the following steps:
步骤501、在第一时间资源,使用第一天线端口发送所述PSS。Step 501: Send, at the first time resource, the PSS by using a first antenna port.
其中,上述第一时间资源可以是一slot或者一子帧中的第1个时间资源,例如:第一个OFDM符号,当然对此,本公开实施例不作限定。The foregoing first time resource may be a slot or a first time resource in a subframe, for example, a first OFDM symbol, and of course, the embodiment of the present disclosure is not limited thereto.
步骤502、在第二时间资源,使用第二天线端口发送所述SSS。Step 502: Send the SSS by using a second antenna port in the second time resource.
上述第二时间资源可以是与上述第一时间资源连续的时间资源,当然对此,本公开实施例不作限定。The foregoing second time resource may be a time resource that is continuous with the first time resource, and the embodiment of the present disclosure is not limited thereto.
步骤503、在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号。Step 503: Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
上述第三时间资源可以是与上述第二时间资源连续的时间资源,当然对 此,本公开实施例不作限定。The foregoing third time resource may be a time resource that is continuous with the second time resource, and the embodiment of the present disclosure is not limited thereto.
可选的,所述在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号,包括:Optionally, in the third time resource, sending the PBCH signal by using the first antenna port and the second antenna port, including:
在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号。In the third time resource, the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
其中,上述在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号可以是,在第三时间资源中的相邻的至少两个子载波或者至少两个OFDM符号上发送的至少两个PBCH信号符号进行预编码,编码后的符号分别在第一天线端口和第二天线端口上发送。Wherein, in the foregoing third time resource, using the first antenna port and the second antenna port, using the space frequency diversity or the space time diversity manner, the sending the PBCH signal may be at least adjacent in the third time resource. The two subcarriers or at least two PBCH signal symbols transmitted on at least two OFDM symbols are precoded, and the encoded symbols are transmitted on the first antenna port and the second antenna port, respectively.
例如:上述在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号,包括:For example, in the foregoing third time resource, using the first antenna port and the second antenna port, the PBCH signal is sent by using space frequency diversity or space-time diversity, including:
对第一PBCH信息符号和第二PBCH信息符号进行预编码,并在第三时间资源,使用第一天线端口和第二天线端口,发送预编码结果。Precoding the first PBCH information symbol and the second PBCH information symbol, and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
例如:上述PBCH信号中两个天线端口的第i个信息符号x(i)=[x
(0)(i) x
(1)(i)]
T,经过空频分集或空时分集,发送的信息符号y(i)=[y
(0)(i) y
(1)(i)]
T和PBCH信号符号的预编码操作如下所示:
For example, the i-th information symbol x(i)=[x (0) (i) x (1) (i)] T of two antenna ports in the above PBCH signal is transmitted through space frequency diversity or space-time diversity. Information symbol y(i)=[y (0) (i) y (1) (i)] The precoding operations for the T and PBCH signal symbols are as follows:
其中,Re表示取复数的实部,Im表示取复数的虚步,j为虚数单位。Where Re represents the real part of the complex number, Im represents the virtual step of the complex number, and j is the imaginary unit.
需要说明的是,预编码的方式仅是一举例,本公开实施例中,并不限定PBCH信号的预编码方式。It should be noted that the precoding method is only an example. In the embodiment of the present disclosure, the precoding mode of the PBCH signal is not limited.
本公开实施例中,通过上述利用空频分集或者空时分集的方式,在第三时间资源上发送PBCH信号,从而可以提高PBCH的检测性能,即用户终端更加容易检测到PBCH信号。In the embodiment of the present disclosure, the PBCH signal is transmitted on the third time resource by means of space frequency diversity or space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
步骤504、在第四时间资源,使用第一天线端口再次发送所述PSS。Step 504: At the fourth time resource, send the PSS again using the first antenna port.
步骤505、在第五时间资源,使用第一天线端口再次发送所述SSS。Step 505: At the fifth time resource, send the SSS again by using the first antenna port.
其中,上述第五时间资源可以是与上述第四时间资源连续的时间资源,当然对此,本公开实施例不作限定。The fifth time resource may be a time resource that is continuous with the fourth time resource, and the embodiment of the present disclosure is not limited thereto.
通过上述步骤可以实现当在所述第二时间资源,使用第二天线端口发送所述SSS时,在所述第五时间资源,使用第一天线端口再次发送所述SSS。Through the foregoing steps, when the SSS is sent by using the second antenna port in the second time resource, the SSS is sent again by using the first antenna port in the fifth time resource.
该实施方式中,可以实现两次发送SSS时,所使用的天线端口不同,从而提高了信道估计的性能。In this embodiment, when the SSS is transmitted twice, the antenna ports used are different, thereby improving the performance of channel estimation.
可选的,该实施方式中,上述SSS包括第一随机序列和第二随机序列;Optionally, in this implementation manner, the foregoing SSS includes a first random sequence and a second random sequence;
所述使用第二天线端口发送所述SSS,包括:Transmitting the SSS by using the second antenna port includes:
使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;
所述使用第一天线端口再次发送所述SSS,包括:The transmitting the SSS again by using the first antenna port includes:
使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列。Using the first antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence.
其中,上述第一随机序列和第二随机序列可以是网络侧设备随机生成,其中生成的方式可以是按照预设规则生成的。The first random sequence and the second random sequence may be randomly generated by the network side device, where the generated manner may be generated according to a preset rule.
该实施方式中,可以实现在第二时间资源使用同一天线端口在不同的频率资源发送SSS的第一随机序列,以及在第五时间资源使用另一天线端口在不同的频率资源发送SSS的第二随机序列,而在第三时间使用两个天线端口发送PBCH信号。这样就可以实现使用双天线端口重复发送同步接入信号组(SS block)中的SSS信号,提高了的时间和频率同步精度。然后使用得用户终端通过检测到的SSS进行信道估计来检测PBCH信号,就省去了导频信号的开销。提高了***的频谱利用效率。In this implementation manner, a first random sequence in which the SSS is transmitted at different frequency resources using the same antenna port in the second time resource, and a second transmission of the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented. A random sequence is used to transmit the PBCH signal using two antenna ports at a third time. In this way, the SSS signal in the synchronous access signal group (SS block) can be repeatedly transmitted using the dual antenna port, and the time and frequency synchronization accuracy is improved. Then, the user terminal is used to detect the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
例如:如图6所示,一个同步接入信号组(SS block)占用一个时隙(slot)发送进行举例,同步接入信号组(SS block)中的信号采用两个天线端口发送,其中的PSS和SSS要进行两次发送。PSS第一次发送使用天线端口0在slot中的第1个OFDM符号发送,PSS第二次仍然使用天线端口0在slot中的第6个OFDM符号发送。即PSS只使用一个天线端口发送。SSS第一次发送使用天线端口1在slot中的第2个OFDM符号发送,SSS第二次发送使 用天线端口0在slot中的第7个OFDM符号发送。即SSS在两次发送时使用的天线端口进行了切换。PBCH则总是同时使用两个天线端口可以利用空频分集和空时分集的方式在第3,4和5个OFDM符号进行发送。这两个天线端口和PSS,SSS使用的天线端口相同。整个SS block的信号结构如图6所示。这样,PBCH就可以通过SSS进行信道估计,从而就省去了CRS的开销,提高了频谱效率。For example, as shown in FIG. 6, a synchronization access signal group (SS block) occupies one slot (slot) transmission, and a signal in a synchronization access signal group (SS block) is sent by two antenna ports, where PSS and SSS are sent twice. The PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and the PSS transmits the sixth OFDM symbol in the slot using antenna port 0 for the second time. That is, the PSS is sent using only one antenna port. The SSS transmits the first OFDM symbol transmission in the slot using antenna port 1 for the first time, and transmits the seventh OFDM symbol transmission in the slot using antenna port 0 for the second time. That is, the SSS is switched on the antenna port used for two transmissions. The PBCH always uses two antenna ports simultaneously and can transmit in the 3rd, 4th and 5th OFDM symbols by means of space frequency diversity and space time diversity. These two antenna ports are the same as those used by PSS and SSS. The signal structure of the entire SS block is shown in Figure 6. In this way, the PBCH can perform channel estimation through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
需要说明的是,这里SSS由两个随机序列构成,随机序列0和随机序列1。SSS每次发送占用一个OFDM符号,其中序列0用频率较低的PRB或者RB发送,序列1用频率较高的PRB发送。本方案里,在每一次SSS发送时,这两个序列都使用相同的端口发送。It should be noted that the SSS here is composed of two random sequences, a random sequence 0 and a random sequence 1. The SSS occupies one OFDM symbol each time, where sequence 0 is transmitted with a lower frequency PRB or RB, and sequence 1 is transmitted with a higher frequency PRB. In this scheme, both sequences are sent using the same port each time SSS is sent.
可选的,本实施例中,上述第一预设频段低于预设阈值,上述第二预设频段高于预设阈值。Optionally, in this embodiment, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
其中,上述预设阈值可以是网络侧设备预先配置的,或者网络侧设备与用户终端预先协商的。The preset threshold may be pre-configured by the network side device, or pre-negotiated by the network side device and the user terminal.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
该实施方式中,可以实现同一同步接入信号组内的信号使用该同步接入信号组对应的时间资源发送,即可以实现不同的同步接入信号组内的信号使用不同的时间资源发送,从而能够提高同步接入信号组的检测性能。In this embodiment, the signals in the same synchronous access signal group can be transmitted by using time resources corresponding to the synchronous access signal group, that is, signals in different synchronized access signal groups can be transmitted using different time resources, thereby It can improve the detection performance of the synchronous access signal group.
优先的,与所述同步接入信号组对应的时间资源为时隙(slot),所述第一时间资源为所述slot中的第1个OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Preferably, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first OFDM symbol in the slot, and the second time resource is the slot. The second OFDM symbol, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the 6th OFDM symbol in the slot, The fifth time resource is the 7th OFDM symbol in the slot.
例如:一个同步接入信号组占用一个slot发送,其中的PSS和SSS要进行两次发送。PSS第一次发送使用天线端口0在slot中的第1个OFDM符号发送,且可以在该OFDM符号内的所有资源块(Resource Block,RB)上发送,PSS第二次发送使用天线端口1在slot中的第6个OFDM符号发送。SSS 第一次发送使用天线端口0和/或1在slot中的第2个OFDM符号发送,SSS第二次发送使用天线端口1和/或0在slot中的第7个OFDM符号发送。而PBCH信号则总是同时使用两个天线端口利用空频分集和空时分集的方式在第3,4和5个OFDM符号进行发送。这两个天线端口和PSS,SSS使用的天线端口相同。从而PBCH信号就可以通过SSS进行信道估计,从而就省去了CRS的开销,提高了频谱效率。For example, a synchronous access signal group occupies a slot transmission, and the PSS and SSS are sent twice. The PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and can be sent on all resource blocks (RBs) in the OFDM symbol, and the second transmission of PSS uses antenna port 1 at The sixth OFDM symbol in the slot is transmitted. The SSS transmits for the first time using antenna port 0 and/or 1 for the second OFDM symbol transmission in the slot, and the SSS transmits for the second time using antenna port 1 and/or 0 for the 7th OFDM symbol transmission in the slot. The PBCH signal is always transmitted at the same time using the two antenna ports in the 3rd, 4th and 5th OFDM symbols by means of space-frequency diversity and space-time diversity. These two antenna ports are the same as those used by PSS and SSS. Therefore, the PBCH signal can be channel-estimated through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
该举例中,通过上述设计,用户终端就可以通过双天线端口中不同的天线端口,在相应的OFDM符号检测同步接入信号组中的上述PSS和SSS信号,实现精确的时间和频率同步。然后通过SSS进行信道估计,以此来检测PBCH信号,从而获得***信息。In this example, through the above design, the user terminal can detect the PSS and SSS signals in the synchronous access signal group in the corresponding OFDM symbols through different antenna ports in the dual antenna ports, thereby achieving accurate time and frequency synchronization. Channel estimation is then performed through the SSS to detect the PBCH signal to obtain system information.
本实施例中,在第一时间资源,使用第一天线端口发送所述PSS;在第二时间资源,使用第二天线端口发送所述SSS;在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;在第四时间资源,使用第一天线端口再次发送所述PSS;在第五时间资源,使用第一天线端口再次发送所述SSS。由于多次发送PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。以及由于两次发送SSS时,所使用的天线端口不同,从而提高了信道估计的性能。In this embodiment, the PSS is sent by using the first antenna port in the first time resource, the SSS is sent by using the second antenna port in the second time resource, and the first antenna port is used in the third time resource. The second antenna port transmits the PBCH signal; at the fourth time resource, the PSS is retransmitted using the first antenna port; and at the fifth time resource, the SSS is retransmitted using the first antenna port. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is sent twice, the performance of the channel estimation is improved.
第四实施例Fourth embodiment
参见图7,图7是本公开实施例提供的另一种同步接入信号组的发送方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图7所示,包括以下步骤:Referring to FIG. 7, FIG. 7 is a flowchart of another method for transmitting a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. Includes the following steps:
步骤701、在第一时间资源,使用第一天线端口发送所述PSS。Step 701: Send, at the first time resource, the PSS by using a first antenna port.
其中,上述第一时间资源可以是一slot或者一子帧中的第1个时间资源,例如:第一个OFDM符号,当然对此,本公开实施例不作限定。The foregoing first time resource may be a slot or a first time resource in a subframe, for example, a first OFDM symbol, and of course, the embodiment of the present disclosure is not limited thereto.
步骤702、在第二时间资源,使用第一天线端口和第二天线端口发送所述SSS。Step 702: Send, at the second time resource, the SSS by using the first antenna port and the second antenna port.
上述第二时间资源可以是与上述第一时间资源连续的时间资源,当然对此,本公开实施例不作限定。The foregoing second time resource may be a time resource that is continuous with the first time resource, and the embodiment of the present disclosure is not limited thereto.
步骤703、在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号。Step 703: Send, at the third time resource, the PBCH signal by using the first antenna port and the second antenna port.
上述第三时间资源可以是与上述第二时间资源连续的时间资源,当然对此,本公开实施例不作限定。The foregoing third time resource may be a time resource that is continuous with the second time resource, and the embodiment of the present disclosure is not limited thereto.
可选的,所述在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号,包括:Optionally, in the third time resource, sending the PBCH signal by using the first antenna port and the second antenna port, including:
在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号。In the third time resource, the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
其中,上述在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号可以是,在第三时间资源中的相邻的至少两个子载波或者至少两个OFDM符号上发送的至少两个PBCH信号符号进行预编码,编码后的符号分别在第一天线端口和第二天线端口上发送。Wherein, in the foregoing third time resource, using the first antenna port and the second antenna port, using the space frequency diversity or the space time diversity manner, the sending the PBCH signal may be at least adjacent in the third time resource. The two subcarriers or at least two PBCH signal symbols transmitted on at least two OFDM symbols are precoded, and the encoded symbols are transmitted on the first antenna port and the second antenna port, respectively.
例如:上述在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号,包括:For example, in the foregoing third time resource, using the first antenna port and the second antenna port, the PBCH signal is sent by using space frequency diversity or space-time diversity, including:
对第一PBCH信息符号和第二PBCH信息符号进行预编码,并在第三时间资源,使用第一天线端口和第二天线端口,发送预编码结果。Precoding the first PBCH information symbol and the second PBCH information symbol, and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
例如:上述PBCH信号中两个天线端口的第i个信息符号x(i)=[x
(0)(i) x
(1)(i)]
T,经过空频分集或空时分集,发送的信息符号y(i)=[y
(0)(i) y
(1)(i)]
T和PBCH信号符号的预编码操作如下所示:
For example, the i-th information symbol x(i)=[x (0) (i) x (1) (i)] T of two antenna ports in the above PBCH signal is transmitted through space frequency diversity or space-time diversity. Information symbol y(i)=[y (0) (i) y (1) (i)] The precoding operations for the T and PBCH signal symbols are as follows:
其中,Re表示取复数的实部,Im表示取复数的虚步,j为虚数单位。Where Re represents the real part of the complex number, Im represents the virtual step of the complex number, and j is the imaginary unit.
需要说明的是,预编码的方式仅是一举例,本公开实施例中,并不限定PBCH信号的预编码方式。It should be noted that the precoding method is only an example. In the embodiment of the present disclosure, the precoding mode of the PBCH signal is not limited.
本公开实施例中,通过上述利用空频分集或者空时分集的方式,在第三时间资源上发送PBCH信号,从而可以提高PBCH的检测性能,即用户终端更加容易检测到PBCH信号。In the embodiment of the present disclosure, the PBCH signal is transmitted on the third time resource by means of space frequency diversity or space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
步骤704、在第四时间资源,使用第一天线端口再次发送所述PSS。Step 704: At the fourth time resource, send the PSS again by using the first antenna port.
步骤705、在第五时间资源,使用第二天线端口和第一天线端口再次发送所述SSS。Step 705: In the fifth time resource, send the SSS again by using the second antenna port and the first antenna port.
其中,上述第五时间资源可以是与上述第四时间资源连续的时间资源,当然对此,本公开实施例不作限定。The fifth time resource may be a time resource that is continuous with the fourth time resource, and the embodiment of the present disclosure is not limited thereto.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS,包括:Transmitting the SSS by using the first antenna port and/or the second antenna port in the second time resource, including:
在第二时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,且使用第二天线端口,占用第二预设频段发送所述第二随机序列;In the second time resource, using the first antenna port, occupying the first preset frequency band to send the first random sequence, and using the second antenna port, occupying the second preset frequency band to send the second random sequence;
所述在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS,包括:And transmitting, in the fifth time resource, the SSS by using the second antenna port and/or the first antenna port, including:
在第五时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,且使用第一天线端口,占用第二预设频段发送所述第二随机序列。And in the fifth time resource, using the second antenna port, occupying the first preset frequency band to send the first random sequence, and using the first antenna port, occupying the second preset frequency band to send the second random sequence.
其中,上述第一随机序列和第二随机序列可以是网络侧设备随机生成,其中生成的方式可以是按照预设规则生成的。The first random sequence and the second random sequence may be randomly generated by the network side device, where the generated manner may be generated according to a preset rule.
该实施方式中,可以实现在第二时间资源使用不同天线端口在不同的频率资源发送SSS的第一随机序列,以及在第五时间资源使用不同天线端口在不同的频率资源发送SSS的第二随机序列,而在第三时间使用两个天线端口发送PBCH信号。这样就可以实现SSS在每个天线端口都重复发送了两次,且上述第二时间资源和第五时间资源可以分别在一个slot的两端,从而大大提高了信道估计的性能。另外,通过第一次发送和第二次发送中的不同频率资源(例如:低频段和高频段)的SSS的两个序列发送天线端口的切换,更进一步的提高了信道估计的性能。In this implementation manner, a first random sequence in which the SSS is transmitted in different frequency resources using different antenna ports in the second time resource, and a second random transmission in the fifth time resource using different antenna ports in different frequency resources may be implemented. The sequence, while at the third time, uses two antenna ports to transmit the PBCH signal. In this way, the SSS can be repeatedly transmitted twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation. In addition, the switching of the two sequence transmission antenna ports of the SSS of different frequency resources (for example, low frequency band and high frequency band) in the first transmission and the second transmission further improves the performance of channel estimation.
例如:如图8所示,以一个同步接入信号组(SS block)占用一个slot发送进行举例,同步接入信号组(SS block)中的信号采用两个天线端口发送。 其中的PSS和SSS要进行两次发送。PSS第一次发送使用天线端口0在slot中的第1个OFDM符号发送,PSS第二次仍然使用天线端口0在slot中的第6个OFDM符号发送。即PSS只使用一个天线端口发送。SSS第一次发送在slot中的第2个OFDM符号进行,其中序列0用天线端口0在频率较低的物理资源块(Physical Resource Block,PRB)发送,序列1用天线端口1在频率较高的PRB发送。SSS第二次发送在slot中的第7个OFDM符号进行,相同的SSS序列也在该OFDM符号内重复两遍,与第一次不同的是,其中序列0用天线端口1在频率较低的PRB发送,序列1用天线端口0在频率较高的PRB发送。即第二次发送与第一次发送相比,SSS的每个序列使用的发送天线端口发生了切换。PBCH则总是同时使用两个天线端口可以利用空频分集和空时分集的方式在第3,4和5个OFDM符号进行发送。这两个天线端口和PSS,SSS使用的天线端口相同。整个SS block的信号结构如图8所示,这样,PBCH就可以通过SSS进行信道估计,从而就省去了CRS的开销,提高了频谱效率。For example, as shown in FIG. 8, a slot is occupied by a synchronous access signal group (SS block). The signal in the SS SS is transmitted by using two antenna ports. The PSS and SSS are sent twice. The PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and the PSS transmits the sixth OFDM symbol in the slot using antenna port 0 for the second time. That is, the PSS is sent using only one antenna port. The SSS is sent for the first time in the second OFDM symbol in the slot, where sequence 0 is transmitted with a lower frequency Physical Resource Block (PRB) with antenna port 0, and sequence 1 uses antenna port 1 at a higher frequency. The PRB is sent. The SSS is sent for the second time in the 7th OFDM symbol in the slot, and the same SSS sequence is also repeated twice in the OFDM symbol. The first difference is that the sequence 0 uses the antenna port 1 at a lower frequency. PRB transmission, sequence 1 is transmitted with a higher frequency PRB with antenna port 0. That is, the second transmission is switched compared to the first transmission, and the transmission antenna port used in each sequence of the SSS is switched. The PBCH always uses two antenna ports simultaneously and can transmit in the 3rd, 4th and 5th OFDM symbols by means of space frequency diversity and space time diversity. These two antenna ports are the same as those used by PSS and SSS. The signal structure of the entire SS block is as shown in Fig. 8. Thus, the PBCH can perform channel estimation through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
可选的,本实施例中,上述第一预设频段低于预设阈值,上述第二预设频段高于预设阈值。Optionally, in this embodiment, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
其中,上述预设阈值可以是网络侧设备预先配置的,或者网络侧设备与用户终端预先协商的。The preset threshold may be pre-configured by the network side device, or pre-negotiated by the network side device and the user terminal.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
该实施方式中,可以实现同一同步接入信号组内的信号使用该同步接入信号组对应的时间资源发送,即可以实现不同的同步接入信号组内的信号使用不同的时间资源发送,从而能够提高同步接入信号组的检测性能。In this embodiment, the signals in the same synchronous access signal group can be transmitted by using time resources corresponding to the synchronous access signal group, that is, signals in different synchronized access signal groups can be transmitted using different time resources, thereby It can improve the detection performance of the synchronous access signal group.
优先的,与所述同步接入信号组对应的时间资源为时隙(slot),所述第一时间资源为所述slot中的第1个OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Preferably, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first OFDM symbol in the slot, and the second time resource is the slot. The second OFDM symbol, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the 6th OFDM symbol in the slot, The fifth time resource is the 7th OFDM symbol in the slot.
例如:一个同步接入信号组占用一个slot发送,其中的PSS和SSS要进行两次发送。PSS第一次发送使用天线端口0在slot中的第1个OFDM符号发送,且可以在该OFDM符号内的所有资源块(Resource Block,RB)上发送,PSS第二次发送使用天线端口1在slot中的第6个OFDM符号发送。SSS第一次发送使用天线端口0和/或1在slot中的第2个OFDM符号发送,SSS第二次发送使用天线端口1和/或0在slot中的第7个OFDM符号发送。而PBCH信号则总是同时使用两个天线端口利用空频分集和空时分集的方式在第3,4和5个OFDM符号进行发送。这两个天线端口和PSS,SSS使用的天线端口相同。从而PBCH信号就可以通过SSS进行信道估计,从而就省去了CRS的开销,提高了频谱效率。For example, a synchronous access signal group occupies a slot transmission, and the PSS and SSS are sent twice. The PSS transmits the first OFDM symbol in the slot using antenna port 0 for the first time, and can be sent on all resource blocks (RBs) in the OFDM symbol, and the second transmission of PSS uses antenna port 1 at The sixth OFDM symbol in the slot is transmitted. The SSS transmits for the first time using antenna port 0 and/or 1 in the second OFDM symbol transmission in the slot, and the second SSS transmits the seventh OFDM symbol transmission in the slot using antenna port 1 and/or 0. The PBCH signal is always transmitted at the same time using the two antenna ports in the 3rd, 4th and 5th OFDM symbols by means of space-frequency diversity and space-time diversity. These two antenna ports are the same as those used by PSS and SSS. Therefore, the PBCH signal can be channel-estimated through the SSS, thereby eliminating the overhead of the CRS and improving the spectrum efficiency.
该举例中,通过上述设计,用户终端就可以通过双天线端口中不同的天线端口,在相应的OFDM符号检测同步接入信号组中的上述PSS和SSS信号,实现精确的时间和频率同步。然后通过SSS进行信道估计,以此来检测PBCH信号,从而获得***信息。In this example, through the above design, the user terminal can detect the PSS and SSS signals in the synchronous access signal group in the corresponding OFDM symbols through different antenna ports in the dual antenna ports, thereby achieving accurate time and frequency synchronization. Channel estimation is then performed through the SSS to detect the PBCH signal to obtain system information.
本实施例中,在第一时间资源,使用第一天线端口发送所述PSS;在第二时间资源,使用第一天线端口和第二天线端口发送所述SSS;在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;在第四时间资源,使用第一天线端口再次发送所述PSS;在第五时间资源,使用第二天线端口和第一天线端口再次发送所述SSS。由于多次发送PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。以及由于发送SSS与发送PBCH信号使用相同的双天线端口发送,这样有利用户终端使用检测到的SSS的信道估计检测PBCH信号,以提高检测性能。另外,还可以在第二时间资源使用不同天线端口在不同的频率资源发送SSS的第一随机序列,以及在第五时间资源使用不同天线端口在不同的频率资源发送SSS的第二随机序列,而在第三时间使用两个天线端口发送PBCH信号。这样就可以实现SSS在每个天线端口都重复发送了两次,且上述第二时间资源和第五时间资源可以分别在一个slot的两端,从而大大提高了信道估计的性能。另外,通过第一次发送和第二次发送中的不同频率资源的SSS的两个序列发送天线端口的切换,更进一步 的提高了信道估计的性能。In this embodiment, the PSS is sent by using the first antenna port in the first time resource, and the SSS is sent by using the first antenna port and the second antenna port in the second time resource; Transmitting the PBCH signal with an antenna port and a second antenna port; transmitting the PSS again using the first antenna port at the fourth time resource; and transmitting the second antenna port and the first antenna port again at the fifth time resource SSS. Since the PSS and the SSS are transmitted multiple times, the detection performance of the PSS and the SSS and the synchronization precision of time and frequency are improved, the overhead of the pilot signal is saved, and the spectrum utilization efficiency of the system is improved. And because the transmitting SSS and the transmitting PBCH signal are transmitted using the same dual antenna port, it is advantageous for the user terminal to detect the PBCH signal by using the channel estimation of the detected SSS to improve the detection performance. In addition, the first random sequence of the SSS may be sent in different frequency resources using the different antenna ports in the second time resource, and the second random sequence in the SSS is sent in different frequency resources in the fifth time resource using different antenna ports, and The PBCH signal is transmitted using the two antenna ports at the third time. In this way, the SSS can be repeatedly transmitted twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation. In addition, the switching of the two sequence transmission antenna ports of the SSS of different frequency resources in the first transmission and the second transmission further improves the performance of the channel estimation.
第五实施例Fifth embodiment
参见图9,图9是本公开实施例提供的一种同步接入信号组的接收方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图9所示,该方法包括以下步骤:Referring to FIG. 9, FIG. 9 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. The method includes the following steps:
步骤901、在第一时间资源,使用第三天线端口检测所述PSS。Step 901: In the first time resource, use the third antenna port to detect the PSS.
在步骤901中用户终端可以是使用与网络侧设备发送所述PSS使用的天线端口对应的天线端口在对应的时间资源上检测所述PSS。例如:第一次发送PSS在第一时间资源使用第一天线端口发送,那么用户终端就可以在第一时间资源使用与第一天线端口对应的第三天线端口检测PSS。In step 901, the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
步骤902、在第二时间资源,使用第三天线端口和/或第四天线端口,检测所述SSS。Step 902: In the second time resource, use the third antenna port and/or the fourth antenna port to detect the SSS.
在步骤902中用户终端可以是使用与网络侧设备发送所述SSS使用的天线端口对应的天线端口在对应的时间资源中的频率资源上检测所述SSS。例如:第一次发送SSS在第二时间资源使用第一天线端口发送,那么用户终端就可以在第二时间资源使用与第一天线端口对应的第三天线端口检测SSS。In step 902, the user terminal may detect the SSS on the frequency resource in the corresponding time resource by using an antenna port corresponding to the antenna port used by the network side device to send the SSS. For example, the first time the SSS is sent, the second time resource is sent by using the first antenna port, and then the user terminal can detect the SSS by using the third antenna port corresponding to the first antenna port in the second time resource.
步骤903、在第四时间资源,使用第三天线端口再次检测所述PSS。Step 903: At the fourth time resource, the PSS is detected again by using the third antenna port.
步骤904、在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS。Step 904: In the fifth time resource, use the fourth antenna port and/or the third antenna port to detect the SSS again.
步骤905、利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果。Step 905: Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
当用户终端检测到上述PSS和SSS,就可以利用PSS和SSS,进行与网络侧设备之间的时间和频率的同步,以及当检测到PSS和SSS用户终端就可以进行信道估计,以得到信道估计结果。When the user terminal detects the PSS and the SSS, the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
步骤906、在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。Step 906: At the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
由于上述PSS、SSS和PBCH属于同一同步接入信号组,从而可以使用PSS和SSS的信道估计结果检测到PBCH。Since the above PSS, SSS, and PBCH belong to the same synchronous access signal group, the PBCH can be detected using the channel estimation results of the PSS and the SSS.
通过上述用户终端检测到PSS和SSS后,可以利用检测到的PSS和SSS 进行时间和频率的同步,且还可以利用检测到SSS进行信道估计,获取信道估计结果,然后,利用该信道估计结果使用第三天线端口和第四天线端口检测PBCH信号。若PBCH信号包括***信息时,用户终端还可以对检测到的PBCH信号解调,得到***信息。由于直接使用SSS进行信道估计,这样就不需要传输CRS,即可以省去了CRS的开销,提高了频谱效率。After the PSS and the SSS are detected by the user terminal, the detected time and frequency can be synchronized by using the detected PSS and SSS, and the channel estimation result can be obtained by using the detected SSS, and the channel estimation result is obtained, and then the channel estimation result is used. The third antenna port and the fourth antenna port detect the PBCH signal. If the PBCH signal includes system information, the user terminal may also demodulate the detected PBCH signal to obtain system information. Since the SSS is directly used for channel estimation, there is no need to transmit CRS, which can save the overhead of CRS and improve spectrum efficiency.
本公开实施例中,在第一时间资源,使用第三天线端口检测所述PSS;在第二时间资源,使用第三天线端口和/或第四天线端口,检测所述SSS;在第四时间资源,使用第三天线端口再次检测所述PSS;在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS;利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。由于多次检测PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。In the embodiment of the present disclosure, the PSS is detected by using a third antenna port in a first time resource, and the SSS is detected by using a third antenna port and/or a fourth antenna port in a second time resource; Resource, detecting the PSS again using the third antenna port; detecting the SSS again using the fourth antenna port and/or the third antenna port at the fifth time resource; using the detected PSS and the SSS, Performing time and frequency synchronization, performing channel estimation using the detected SSS, and acquiring a channel estimation result; and detecting, by using the channel estimation result, the PBCH signal by using the third antenna port and the fourth antenna port in the third time resource . Since PSS and SSS are detected multiple times, the detection performance of PSS and SSS and the synchronization precision of time and frequency are improved, the overhead of pilot signals is saved, and the spectrum utilization efficiency of the system is improved.
第六实施例Sixth embodiment
参见图10,图10是本公开实施例提供的一种同步接入信号组的接收方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图10所示,该方法包括以下步骤:Referring to FIG. 10, FIG. 10 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. The method includes the following steps:
步骤1001、在第一时间资源,使用第三天线端口检测所述PSS。Step 1001: In the first time resource, use the third antenna port to detect the PSS.
在步骤1001中用户终端可以是使用与网络侧设备发送所述PSS使用的天线端口对应的天线端口在对应的时间资源上检测所述PSS。例如:第一次发送PSS在第一时间资源使用第一天线端口发送,那么用户终端就可以在第一时间资源使用与第一天线端口对应的第三天线端口检测PSS。In step 1001, the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
步骤1002、在第二时间资源,使用第三天线端口,检测所述SSS。Step 1002: In the second time resource, use the third antenna port to detect the SSS.
在步骤1002中用户终端可以是使用与网络侧设备发送所述SSS使用的天线端口对应的天线端口在对应的时间资源中的频率资源上检测所述SSS。例如:第一次发送SSS在第二时间资源使用第一天线端口发送,那么用户终端就可以在第二时间资源使用与第一天线端口对应的第三天线端口检测SSS。In step 1002, the user terminal may detect the SSS on a frequency resource in a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the SSS. For example, the first time the SSS is sent, the second time resource is sent by using the first antenna port, and then the user terminal can detect the SSS by using the third antenna port corresponding to the first antenna port in the second time resource.
步骤1003、在第四时间资源,使用第三天线端口再次检测所述PSS。Step 1003: At the fourth time resource, the PSS is detected again by using the third antenna port.
步骤1004、在第五时间资源,使用第四天线端口,再次检测所述SSS。Step 1004: In the fifth time resource, use the fourth antenna port to detect the SSS again.
步骤1005、利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果。Step 1005: Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
当用户终端检测到上述PSS和SSS,就可以利用PSS和SSS,进行与网络侧设备之间的时间和频率的同步,以及当检测到PSS和SSS用户终端就可以进行信道估计,以得到信道估计结果。When the user terminal detects the PSS and the SSS, the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
步骤1006、在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。Step 1006: At the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
由于上述PSS、SSS和PBCH属于同一同步接入信号组,从而可以使用PSS和SSS的信道估计结果检测到PBCH。Since the above PSS, SSS, and PBCH belong to the same synchronous access signal group, the PBCH can be detected using the channel estimation results of the PSS and the SSS.
其中,第三天线端口与网络侧设备的第一天线端口对应,第四天线端口与网络侧设备的第二天线端口对应,另外,关于上述时间资源可以参见第一实施例至第四实施例中的相应说明,此处不作赘述,且可以达到相同的有益效果。The third antenna port corresponds to the first antenna port of the network side device, and the fourth antenna port corresponds to the second antenna port of the network side device. In addition, regarding the time resource, refer to the first embodiment to the fourth embodiment. Corresponding descriptions are not described here, and the same beneficial effects can be achieved.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述使用第三天线端口检测所述SSS,包括:The detecting the SSS by using the third antenna port includes:
使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;Using the third antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
所述使用第四天线端口再次检测所述SSS,包括:The detecting the SSS again by using the fourth antenna port includes:
使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列。Using the fourth antenna port, the first random sequence is detected by the first preset frequency band, and the second random sequence is detected by the second preset frequency band.
该实施方式中,可以实现在第二时间资源使用同一天线端口在不同的频率资源检测SSS的第一随机序列,以及在第五时间资源使用另一天线端口在不同的频率资源检测SSS的第二随机序列,而在第三时间使用两个天线端口检测PBCH信号。这样就可以实现使用双天线端口重复检测同步接入信号组(SS block)中的SSS信号,提高了的时间和频率同步精度。然后用户终端通过检测到的SSS进行信道估计来检测PBCH信号,就省去了导频信号的开销。提高了***的频谱利用效率。In this implementation manner, the first random sequence of detecting the SSS at different frequency resources using the same antenna port in the second time resource, and the second detecting the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented. A random sequence is used to detect the PBCH signal using two antenna ports at a third time. In this way, the SSS signal in the synchronous access signal group (SS block) can be repeatedly detected using the dual antenna port, and the time and frequency synchronization accuracy is improved. Then, the user terminal detects the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
可选的,所述第一预设频段低于预设阈值,所述第二预设频段高于预设 阈值。Optionally, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
可选的,所述在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号,包括:Optionally, in the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal, including:
在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口,通过空频分集或者空时分集的方式检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
本公开实施例中,通过上述利用空频分集或者空时分集的方式,在第三时间资源上检测PBCH信号,从而可以提高PBCH的检测性能,即用户终端更加容易检测到PBCH信号。In the embodiment of the present disclosure, the PBCH signal is detected on the third time resource by using the space frequency diversity or the space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
可选的,与所述同步接入信号组对应的时间资源为slot,所述第一时间资源为所述slot中的第1个OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Optionally, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first OFDM symbol in the slot, and the second time resource is a number in the slot. 2 OFDM symbols, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the 6th OFDM symbol in the slot, the fifth time The resource is the 7th OFDM symbol in the slot.
关于上述时间资源可以参见第二实施例至第四实施例的相应说明,此处不作赘述,且可以达到相同有益效果。For the above-mentioned time resources, reference may be made to the corresponding descriptions of the second embodiment to the fourth embodiment, which are not described herein, and the same advantageous effects can be achieved.
本公开实施例中,在第一时间资源,使用第三天线端口检测所述PSS;在第二时间资源,使用第三天线端口,检测所述SSS;在第四时间资源,使用第三天线端口再次检测所述PSS;在第五时间资源,使用第四天线端口,再次检测所述SSS;利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。由于多次检测PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。以及由于两次检测SSS时,所使用的天线端口不同,从而提高了信道估计的性能。In the embodiment of the present disclosure, the PSS is detected by using a third antenna port in a first time resource; the SSS is detected by using a third antenna port in a second time resource; and the third antenna port is used in a fourth time resource. Detecting the PSS again; detecting the SSS again using the fourth antenna port in the fifth time resource; performing time and frequency synchronization using the detected PSS and the SSS, using the detected SSS Channel estimation, obtaining a channel estimation result; and detecting, at the third time resource, the PBCH signal by using the third antenna port and the fourth antenna port by using the channel estimation result. Since PSS and SSS are detected multiple times, the detection performance of PSS and SSS and the synchronization precision of time and frequency are improved, the overhead of pilot signals is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is detected twice, the performance of the channel estimation is improved.
第七实施例Seventh embodiment
参见图11,图11是本公开实施例提供的一种同步接入信号组的接收方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图11所示,该方法包括以下步骤:Referring to FIG. 11, FIG. 11 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. The method includes the following steps:
步骤1101、在第一时间资源,使用第三天线端口检测所述PSS。Step 1101: In the first time resource, use the third antenna port to detect the PSS.
在步骤1101中用户终端可以是使用与网络侧设备发送所述PSS使用的天线端口对应的天线端口在对应的时间资源上检测所述PSS。例如:第一次发送PSS在第一时间资源使用第一天线端口发送,那么用户终端就可以在第一时间资源使用与第一天线端口对应的第三天线端口检测PSS。In step 1101, the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
步骤1102、在第二时间资源,使用第四天线端口,检测所述SSS。Step 1102: In the second time resource, use the fourth antenna port to detect the SSS.
在步骤1102中用户终端可以是使用与网络侧设备发送所述SSS使用的天线端口对应的天线端口在对应的时间资源中的频率资源上检测所述SSS。例如:第一次发送SSS在第二时间资源使用第二天线端口发送,那么用户终端就可以在第二时间资源使用与第二天线端口对应的第四天线端口检测SSS。In step 1102, the user terminal may detect the SSS on a frequency resource in a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the SSS. For example, if the first sending SSS is sent by the second antenna port in the second time, the user terminal can detect the SSS in the second time resource using the fourth antenna port corresponding to the second antenna port.
步骤1103、在第四时间资源,使用第三天线端口再次检测所述PSS。Step 1103: At the fourth time resource, the PSS is detected again by using the third antenna port.
步骤1104、在第五时间资源,使用第三天线端口,再次检测所述SSS。Step 1104: In the fifth time resource, use the third antenna port to detect the SSS again.
步骤1105、利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果。Step 1105: Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
当用户终端检测到上述PSS和SSS,就可以利用PSS和SSS,进行与网络侧设备之间的时间和频率的同步,以及当检测到PSS和SSS用户终端就可以进行信道估计,以得到信道估计结果。When the user terminal detects the PSS and the SSS, the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
步骤1106、在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。Step 1106: In the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
由于上述PSS、SSS和PBCH属于同一同步接入信号组,从而可以使用PSS和SSS的信道估计结果检测到PBCH。Since the above PSS, SSS, and PBCH belong to the same synchronous access signal group, the PBCH can be detected using the channel estimation results of the PSS and the SSS.
其中,第三天线端口与网络侧设备的第一天线端口对应,第四天线端口与网络侧设备的第二天线端口对应,另外,关于上述时间资源可以参见第一实施例至第四实施例中的相应说明,此处不作赘述,且可以达到相同的有益效果。The third antenna port corresponds to the first antenna port of the network side device, and the fourth antenna port corresponds to the second antenna port of the network side device. In addition, regarding the time resource, refer to the first embodiment to the fourth embodiment. Corresponding descriptions are not described here, and the same beneficial effects can be achieved.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述使用第四天线端口检测所述SSS,包括:The detecting the SSS by using the fourth antenna port includes:
使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;Using the fourth antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
所述使用第三天线端口再次检测所述SSS,包括:The detecting the SSS again by using the third antenna port includes:
使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列。Using the third antenna port, the first random sequence is detected by the first preset frequency band, and the second random sequence is detected by the second preset frequency band.
该实施方式中,可以实现在第二时间资源使用同一天线端口在不同的频率资源检测SSS的第一随机序列,以及在第五时间资源使用另一天线端口在不同的频率资源检测SSS的第二随机序列,而在第三时间使用两个天线端口检测PBCH信号。这样就可以实现使用双天线端口重复检测同步接入信号组(SS block)中的SSS信号,提高了的时间和频率同步精度。然后用户终端通过检测到的SSS进行信道估计来检测PBCH信号,就省去了导频信号的开销。提高了***的频谱利用效率。In this implementation manner, the first random sequence of detecting the SSS at different frequency resources using the same antenna port in the second time resource, and the second detecting the SSS in different frequency resources using another antenna port in the fifth time resource may be implemented. A random sequence is used to detect the PBCH signal using two antenna ports at a third time. In this way, the SSS signal in the synchronous access signal group (SS block) can be repeatedly detected using the dual antenna port, and the time and frequency synchronization accuracy is improved. Then, the user terminal detects the PBCH signal by performing channel estimation through the detected SSS, thereby eliminating the overhead of the pilot signal. Improve the spectrum utilization efficiency of the system.
可选的,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。Optionally, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
可选的,所述在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号,包括:Optionally, in the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal, including:
在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口,通过空频分集或者空时分集的方式检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
本公开实施例中,通过上述利用空频分集或者空时分集的方式,在第三时间资源上检测PBCH信号,从而可以提高PBCH的检测性能,即用户终端更加容易检测到PBCH信号。In the embodiment of the present disclosure, the PBCH signal is detected on the third time resource by using the space frequency diversity or the space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
可选的,与所述同步接入信号组对应的时间资源为slot,所述第一时间资源为所述slot中的第1个OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间 资源为所述slot中的第7个OFDM符号。Optionally, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first OFDM symbol in the slot, and the second time resource is a number in the slot. 2 OFDM symbols, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the 6th OFDM symbol in the slot, the fifth time The resource is the 7th OFDM symbol in the slot.
关于上述时间资源可以参见第二实施例至第四实施例的相应说明,此处不作赘述,且可以达到相同有益效果。For the above-mentioned time resources, reference may be made to the corresponding descriptions of the second embodiment to the fourth embodiment, which are not described herein, and the same advantageous effects can be achieved.
本公开实施例中,在第一时间资源,使用第三天线端口检测所述PSS;在第二时间资源,使用第四天线端口,检测所述SSS;在第四时间资源,使用第三天线端口再次检测所述PSS;在第五时间资源,使用第三天线端口,再次检测所述SSS;利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。由于多次检测PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。以及由于两次检测SSS时,所使用的天线端口不同,从而提高了信道估计的性能。In the embodiment of the present disclosure, the PSS is detected by using a third antenna port in a first time resource, the SSS is detected by using a fourth antenna port in a second time resource, and the third antenna port is used in a fourth time resource. Detecting the PSS again; detecting the SSS again using the third antenna port in the fifth time resource; performing time and frequency synchronization using the detected PSS and the SSS, using the detected SSS Channel estimation, obtaining a channel estimation result; and detecting, at the third time resource, the PBCH signal by using the third antenna port and the fourth antenna port by using the channel estimation result. Since PSS and SSS are detected multiple times, the detection performance of PSS and SSS and the synchronization precision of time and frequency are improved, the overhead of pilot signals is saved, and the spectrum utilization efficiency of the system is improved. And because the antenna ports used are different when the SSS is detected twice, the performance of the channel estimation is improved.
第八实施例Eighth embodiment
参见图12,图12是本公开实施例提供的一种同步接入信号组的接收方法的流程图,其中,该同步接入信号组包括PSS、SSS和PBCH信号,如图12所示,该方法包括以下步骤:Referring to FIG. 12, FIG. 12 is a flowchart of a method for receiving a synchronization access signal group according to an embodiment of the present disclosure, where the synchronization access signal group includes PSS, SSS, and PBCH signals, as shown in FIG. The method includes the following steps:
步骤1201、在第一时间资源,使用第三天线端口检测所述PSS。Step 1201: In the first time resource, use the third antenna port to detect the PSS.
在步骤1201中用户终端可以是使用与网络侧设备发送所述PSS使用的天线端口对应的天线端口在对应的时间资源上检测所述PSS。例如:第一次发送PSS在第一时间资源使用第一天线端口发送,那么用户终端就可以在第一时间资源使用与第一天线端口对应的第三天线端口检测PSS。In step 1201, the user terminal may detect the PSS on a corresponding time resource by using an antenna port corresponding to an antenna port used by the network side device to send the PSS. For example, the first time the PSS is sent by the first antenna port, the user terminal can detect the PSS at the first time resource using the third antenna port corresponding to the first antenna port.
步骤1202、在第二时间资源,使用第三天线端口和第四天线端口,检测所述SSS。Step 1202: In the second time resource, use the third antenna port and the fourth antenna port to detect the SSS.
在步骤1202中用户终端可以是使用与网络侧设备发送所述SSS使用的天线端口对应的天线端口在对应的时间资源中的频率资源上检测所述SSS。例如:第一次发送SSS在第二时间资源使用第一天线端口和第二天线端口发送,那么用户终端就可以在第二时间资源使用与第一天线端口对应的第三天线端口和第四天线端口检测SSS。In step 1202, the user terminal may detect the SSS on the frequency resource in the corresponding time resource by using an antenna port corresponding to the antenna port used by the network side device to send the SSS. For example, if the first sending SSS is sent by the first antenna port and the second antenna port in the second time, the user terminal can use the third antenna port and the fourth antenna corresponding to the first antenna port in the second time resource. The port detects the SSS.
步骤1203、在第四时间资源,使用第三天线端口再次检测所述PSS。Step 1203: At the fourth time resource, the PSS is detected again by using the third antenna port.
步骤1204、在第五时间资源,使用第四天线端口和第三天线端口,再次检测所述SSS。Step 1204: In the fifth time resource, use the fourth antenna port and the third antenna port to detect the SSS again.
步骤1205、利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果。Step 1205: Perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result.
当用户终端检测到上述PSS和SSS,就可以利用PSS和SSS,进行与网络侧设备之间的时间和频率的同步,以及当检测到PSS和SSS用户终端就可以进行信道估计,以得到信道估计结果。When the user terminal detects the PSS and the SSS, the PSS and the SSS can be used to synchronize the time and frequency with the network side device, and when the PSS and the SSS user terminal are detected, the channel estimation can be performed to obtain the channel estimation. result.
步骤1206、在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。Step 1206: At the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal.
由于上述PSS、SSS和PBCH属于同一同步接入信号组,从而可以使用PSS和SSS的信道估计结果检测到PBCH。Since the above PSS, SSS, and PBCH belong to the same synchronous access signal group, the PBCH can be detected using the channel estimation results of the PSS and the SSS.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述在第二时间资源,使用第三天线端口和/或第四天线端口检测所述SSS,包括:In the second time resource, detecting the SSS by using the third antenna port and/or the fourth antenna port, including:
在第二时间资源,使用第三天线端口,通过第一预设频段检测所述第一随机序列,且使用第四天线端口,通过第二预设频段检测所述第二随机序列;In the second time resource, using the third antenna port, detecting the first random sequence by using the first preset frequency band, and using the fourth antenna port, detecting the second random sequence by using the second preset frequency band;
所述在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS,包括:In the fifth time resource, using the fourth antenna port and/or the third antenna port to detect the SSS again, including:
在第五时间资源,使用第四天线端口,通过第一预设频段检测所述第一随机序列,且使用第三天线端口,通过第二预设频段检测所述第二随机序列。And in the fifth time resource, using the fourth antenna port, detecting the first random sequence by using the first preset frequency band, and using the third antenna port, detecting the second random sequence by using the second preset frequency band.
该实施方式中,可以实现在第二时间资源使用不同天线端口在不同的频率资源检测SSS的第一随机序列,以及在第五时间资源使用不同天线端口在不同的频率资源检测SSS的第二随机序列,而在第三时间使用两个天线端口发送PBCH信号。这样就可以实现SSS在每个天线端口都重复检测了两次,且上述第二时间资源和第五时间资源可以分别在一个slot的两端,从而大大提高了信道估计的性能。另外,通过第一次发送和第二次检测中的不同频率资源(例如:低频段和高频段)的SSS的两个序列检测天线端口的切换,更进一步的提高了信道估计的性能。In this implementation manner, a first random sequence for detecting SSS in different frequency resources using different antenna ports in a second time resource, and a second random detection of SSS in different frequency resources using different antenna ports in a fifth time resource may be implemented. The sequence, while at the third time, uses two antenna ports to transmit the PBCH signal. In this way, the SSS can be repeatedly detected twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation. In addition, the switching of the antenna ports by the two sequences of the SSS of different frequency resources (for example, the low frequency band and the high frequency band) in the first transmission and the second detection further improves the performance of the channel estimation.
可选的,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。Optionally, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
可选的,所述在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号,包括:Optionally, in the third time resource, using the channel estimation result, using the third antenna port and the fourth antenna port to detect the PBCH signal, including:
在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口,通过空频分集或者空时分集的方式检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
本公开实施例中,通过上述利用空频分集或者空时分集的方式,在第三时间资源上检测PBCH信号,从而可以提高PBCH的检测性能,即用户终端更加容易检测到PBCH信号。In the embodiment of the present disclosure, the PBCH signal is detected on the third time resource by using the space frequency diversity or the space time diversity, so that the detection performance of the PBCH can be improved, that is, the PBCH signal is more easily detected by the user terminal.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
可选的,与所述同步接入信号组对应的时间资源为slot,所述第一时间资源为所述slot中的第1个OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Optionally, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first OFDM symbol in the slot, and the second time resource is a number in the slot. 2 OFDM symbols, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the 6th OFDM symbol in the slot, the fifth time The resource is the 7th OFDM symbol in the slot.
关于上述时间资源可以参见第二实施例至第四实施例的相应说明,此处不作赘述,且可以达到相同有益效果。For the above-mentioned time resources, reference may be made to the corresponding descriptions of the second embodiment to the fourth embodiment, which are not described herein, and the same advantageous effects can be achieved.
本公开实施例中,在第一时间资源,使用第三天线端口检测所述PSS;在第二时间资源,使用第三天线端口和第四天线端口,检测所述SSS;在第四时间资源,使用第三天线端口再次检测所述PSS;在第五时间资源,使用第四天线端口和第三天线端口,再次检测所述SSS;利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。由于多次检测PSS和SSS,从而提高了PSS和SSS的检测性能以及时间和频率的同步精度,节省了导频信号的开销,提高了***的频谱利用效率。以及由于检测SSS与发送PBCH信号使用相同的双天线端口发送,这样有利用户终端使用检测到的SSS的信道 估计检测PBCH信号,以提高检测性能。另外,还可以在第二时间资源使用不同天线端口在不同的频率资源检测SSS的第一随机序列,以及在第五时间资源使用不同天线端口在不同的频率资源检测SSS的第二随机序列,而在第三时间使用两个天线端口检测PBCH信号。这样就可以实现SSS在每个天线端口都重复检测了两次,且上述第二时间资源和第五时间资源可以分别在一个slot的两端,从而大大提高了信道估计的性能。另外,通过第一次检测和第二次检测中的不同频率资源的SSS的两个序列检测天线端口的切换,更进一步的提高了信道估计的性能。In the embodiment of the present disclosure, the PSS is detected by using a third antenna port in a first time resource, and the SSS is detected by using a third antenna port and a fourth antenna port in a second time resource; Detecting the PSS again using a third antenna port; detecting the SSS again using a fourth antenna port and a third antenna port at a fifth time resource; performing time and frequency using the detected PSS and the SSS Synchronizing, using the detected SSS for channel estimation, acquiring a channel estimation result; and at the third time resource, using the channel estimation result, detecting the PBCH signal by using the third antenna port and the fourth antenna port. Since PSS and SSS are detected multiple times, the detection performance of PSS and SSS and the synchronization precision of time and frequency are improved, the overhead of pilot signals is saved, and the spectrum utilization efficiency of the system is improved. And since the detecting SSS and the transmitting PBCH signal are transmitted using the same dual antenna port, it is advantageous for the user terminal to detect the PBCH signal using the channel estimation of the detected SSS to improve the detection performance. In addition, the first random sequence of the SSS may be detected at different frequency resources using the different antenna ports in the second time resource, and the second random sequence of the SSS may be detected in different frequency resources using the different antenna ports in the fifth time resource, and The PBCH signal is detected using two antenna ports at a third time. In this way, the SSS can be repeatedly detected twice at each antenna port, and the second time resource and the fifth time resource can be respectively at both ends of a slot, thereby greatly improving the performance of channel estimation. In addition, detecting the switching of the antenna port by the two sequences of the SSS of different frequency resources in the first detection and the second detection further improves the performance of the channel estimation.
第九实施例Ninth embodiment
参见图13,图13是本公开实施例提供的一种网络侧设备的结构图,能够实现第第一实施例至第四实施例中的同步接入信号组的发送方法的细节,并达到相同的效果。该网络侧设备用于同步接入信号级的发送,所述同步接入信号组包括PSS、SSS和PBCH信号,如图13所示,所述网络侧设备1300包括:第一发送模块1301、第二发送模块1302、第三发送模块1303、第四发送模块1304和第五发送模块1305,其中:Referring to FIG. 13, FIG. 13 is a structural diagram of a network side device according to an embodiment of the present disclosure, which can implement details of a method for transmitting a synchronization access signal group in the first to fourth embodiments, and achieve the same Effect. The network side device is configured to synchronize the transmission of the access signal level, and the synchronization access signal group includes a PSS, an SSS, and a PBCH signal. As shown in FIG. 13, the network side device 1300 includes: a first sending module 1301. The second sending module 1302, the third sending module 1303, the fourth sending module 1304, and the fifth sending module 1305, wherein:
第一发送模块1301,用于在第一时间资源,使用第一天线端口发送所述PSS;The first sending module 1301 is configured to send the PSS by using a first antenna port in a first time resource;
第二发送模块1302,用于在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;The second sending module 1302 is configured to send, by using the first antenna port and/or the second antenna port, the SSS in the second time resource;
第三发送模块1303,用于在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;The third sending module 1303 is configured to send, by using the first antenna port and the second antenna port, the PBCH signal in the third time resource;
第四发送模块1304,用于在第四时间资源,使用第一天线端口再次发送所述PSS;The fourth sending module 1304 is configured to send the PSS again by using the first antenna port in the fourth time resource.
第五发送模块1305,用于在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。The fifth sending module 1305 is configured to send the SSS again by using the second antenna port and/or the first antenna port in the fifth time resource.
可选的,当在所述第二时间资源,使用第一天线端口发送所述SSS时,在所述第五时间资源,使用第二天线端口再次发送所述SSS;Optionally, when the SSS is sent by using the first antenna port in the second time resource, the SSS is sent again by using the second antenna port in the fifth time resource;
当在所述第二时间资源,使用第二天线端口发送所述SSS时,在所述第五时间资源,使用第一天线端口再次发送所述SSS。When the SSS is transmitted using the second antenna port in the second time resource, the SSS is retransmitted using the first antenna port in the fifth time resource.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述第二发送模块1302,具体用于在第二时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;或者具体用于在第二时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;The second sending module 1302 is configured to: in the second time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and occupy the second preset frequency band to send the second random sequence. Or specifically for using the second antenna port in the second time resource, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;
所述第四发送模块1304,具体用于在第四时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;或者具体用于在第四时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列。The fourth sending module 1304 is configured to: in the fourth time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and occupy the second preset frequency band to send the second random sequence. Or specifically used in the fourth time resource, using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述第二发送模块1302,具体用于在第二时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,且使用第二天线端口,占用第二预设频段发送所述第二随机序列;The second sending module 1302 is configured to: in the second time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and use the second antenna port to occupy the second preset frequency band. Transmitting the second random sequence;
所述第五发送模块1305,具体用于在第五时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,且使用第一天线端口,占用第二预设频段发送所述第二随机序列。The fifth sending module 1305 is configured to: in the fifth time resource, use the second antenna port, occupy the first preset frequency band, send the first random sequence, and use the first antenna port to occupy the second preset frequency band. Sending the second random sequence.
可选的,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。Optionally, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
可选的,所述第三发送模块1303,具体用于在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号。Optionally, the third sending module 1303 is configured to send, by using the first antenna port and the second antenna port, the PBCH signal by using space frequency diversity or space-time diversity in the third time resource.
可选的,所述第三发送模块1303,具体用于对第一PBCH信息符号和第二PBCH信息符号进行预编码,并在第三时间资源,使用第一天线端口和第二天线端口,发送预编码结果。Optionally, the third sending module 1303 is configured to perform precoding on the first PBCH information symbol and the second PBCH information symbol, and send the first antenna port and the second antenna port in the third time resource. Precoding results.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
可选的,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源 为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Optionally, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot, and the second time The resource is the second OFDM symbol in the slot, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the sixth in the slot. An OFDM symbol, the fifth time resource being a seventh OFDM symbol in the slot.
需要说明的是,本实施例中上述网络侧设备1300可以是本公开实施例中方法实施例中任意实施方式的网络侧设备,本公开实施例中方法实施例中网络侧设备的任意实施方式都可以被本实施例中的上述网络侧设备1300所实现,以及达到相同的有益效果,此处不再赘述。It should be noted that, in the embodiment, the network side device 1300 may be the network side device in any of the method embodiments in the embodiment of the disclosure, and any implementation manner of the network side device in the method embodiment in the embodiment of the disclosure It can be implemented by the above network side device 1300 in this embodiment, and achieve the same beneficial effects, and details are not described herein again.
第十实施例Tenth embodiment
参见图14,图14是本公开实施例提供的一种用户终端的结构图,能够实现第五实施例至第八实施例中的同步接入信号组的接收方法的细节,并达到相同的效果。该用户终端用于同步接入信号组的接收,所述同步接入信号组包括PSS、SSS和PBCH信号,如图14所示,所述用户终端1400包括:第一检测模块1401、第二检测模块1402、第三检测模块1403、第四检测模块1404、同步模块1405和第五检测模块1406,其中:Referring to FIG. 14, FIG. 14 is a structural diagram of a user terminal according to an embodiment of the present disclosure, which can implement details of a method for receiving a synchronization access signal group in the fifth embodiment to the eighth embodiment, and achieve the same effect. . The user terminal is configured to synchronize the reception of the access signal group, and the synchronization access signal group includes a PSS, an SSS, and a PBCH signal. As shown in FIG. 14, the user terminal 1400 includes: a first detection module 1401, and a second detection. The module 1402, the third detecting module 1403, the fourth detecting module 1404, the synchronization module 1405, and the fifth detecting module 1406, wherein:
第一检测模块1401,用于在第一时间资源,使用第三天线端口检测所述PSS;The first detecting module 1401 is configured to detect the PSS by using a third antenna port in the first time resource;
第二检测模块1402,用于在第二时间资源,使用第三天线端口和/或第四天线端口,检测所述SSS;a second detecting module 1402, configured to detect the SSS by using a third antenna port and/or a fourth antenna port in a second time resource;
第三检测模块1403,用于在第四时间资源,使用第三天线端口再次检测所述PSS;The third detecting module 1403 is configured to detect the PSS again by using the third antenna port in the fourth time resource;
第四检测模块1404,用于在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS;The fourth detecting module 1404 is configured to detect the SSS again by using the fourth antenna port and/or the third antenna port in the fifth time resource;
同步模块1405,用于利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;a synchronization module 1405, configured to perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result;
第五检测模块1406,用于在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。The fifth detecting module 1406 is configured to detect, by using the channel estimation result, the PBCH signal by using the third antenna port and the fourth antenna port in the third time resource.
可选的,当在所述第二时间资源,使用第三天线端口检测所述SSS时,在所述第五时间资源,使用第四天线端口再次检测所述SSS;Optionally, when the SSS is detected by using the third antenna port in the second time resource, the SSS is detected again by using the fourth antenna port in the fifth time resource;
当在所述第二时间资源,使用第四天线端口检测所述SSS时,在所述第 五时间资源,使用第三天线端口再次检测所述SSS。When the SSS is detected using the fourth antenna port at the second time resource, the SSS is detected again using the third antenna port at the fifth time resource.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述第二检测模块1402,具体用于在第二时间资源,使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;或者具体用于在第二时间资源,使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;The second detecting module 1402 is configured to: in the second time resource, use the third antenna port, detect the first random sequence by using the first preset frequency band, and detect the second random sequence by using the second preset frequency band. Or specifically for detecting, in the second time resource, using the fourth antenna port, detecting the first random sequence by using the first preset frequency band, and detecting the second random sequence by using the second preset frequency band;
所述第四检测模块1404,具体用于使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;或者具体用于使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列。The fourth detecting module 1404 is configured to detect, by using a third antenna port, the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band; or specifically for using The fourth antenna port detects the first random sequence by using a first preset frequency band, and detects the second random sequence by using a second preset frequency band.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
所述第二检测模块1402,具体用于在第二时间资源,使用第三天线端口,通过第一预设频段检测所述第一随机序列,且使用第四天线端口,通过第二预设频段检测所述第二随机序列;The second detecting module 1402 is configured to: in the second time resource, use the third antenna port, detect the first random sequence by using the first preset frequency band, and use the fourth antenna port to pass the second preset frequency band Detecting the second random sequence;
所述第四检测模块1404,具体用于在第五时间资源,使用第四天线端口,通过第一预设频段检测所述第一随机序列,且使用第三天线端口,通过第二预设频段检测所述第二随机序列。The fourth detecting module 1404 is configured to: in the fifth time resource, use the fourth antenna port, detect the first random sequence by using the first preset frequency band, and use the third antenna port to pass the second preset frequency band. The second random sequence is detected.
可选的,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。Optionally, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
可选的,所述第五检测模块1406,具体用于在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口,通过空频分集或者空时分集的方式检测所述PBCH信号。Optionally, the fifth detecting module 1406 is configured to detect, by using the channel estimation result, the third antenna port and the fourth antenna port by using a space frequency diversity or a space time diversity manner by using the channel estimation result. The PBCH signal.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
可选的,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号, 所述第五时间资源为所述slot中的第7个OFDM符号。Optionally, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot, and the second time The resource is the second OFDM symbol in the slot, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the sixth in the slot. The OFDM symbol, the fifth time resource is a seventh OFDM symbol in the slot.
需要说明的是,本实施例中上述用户终端1400可以是本公开实施例中方法实施例中任意实施方式的用户终端,本公开实施例中方法实施例中用户终端的任意实施方式都可以被本实施例中的上述用户终端1400所实现,以及达到相同的有益效果,此处不再赘述。It should be noted that, in the embodiment, the user terminal 1400 may be a user terminal in any embodiment of the method in the embodiment of the disclosure, and any implementation manner of the user terminal in the method embodiment of the disclosure may be used in this embodiment. The foregoing user terminal 1400 in the embodiment is implemented, and the same beneficial effects are achieved, and details are not described herein again.
第十一实施例Eleventh embodiment
参见图15,图15是本公开实施例应用的网络侧设备的结构图,能够实现第一实施例至第二实施例中的同步接入信号组的发送方法的细节,并达到相同的效果,其中,同步接入信号组包括PSS、SSS和PBCH信号。如图15所示,该网络侧设备1500包括:处理器1501、收发机1502、存储器1503、用户接口1504和总线接口,其中:Referring to FIG. 15, FIG. 15 is a structural diagram of a network side device according to an embodiment of the present disclosure, which can implement details of a method for transmitting a synchronization access signal group in the first embodiment to the second embodiment, and achieve the same effect. The synchronous access signal group includes PSS, SSS, and PBCH signals. As shown in FIG. 15, the network side device 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, a user interface 1504, and a bus interface, where:
处理器1501,用于读取存储器1503中的程序,执行下列过程:The processor 1501 is configured to read a program in the memory 1503 and perform the following process:
在第一时间资源,使用第一天线端口发送所述PSS;Transmitting, by the first antenna port, the PSS in the first time resource;
在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;Transmitting, by the first antenna port and/or the second antenna port, the SSS in the second time resource;
在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;Transmitting, by the first antenna port and the second antenna port, the PBCH signal in the third time resource;
在第四时间资源,使用第一天线端口再次发送所述PSS;Transmitting the PSS again using the first antenna port in the fourth time resource;
在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。At the fifth time resource, the SSS is transmitted again using the second antenna port and/or the first antenna port.
其中,收发机1502,用于在处理器1501的控制下接收和发送数据,所述收发机1502包括至少两个天线端口。The transceiver 1502 is configured to receive and transmit data under the control of the processor 1501, and the transceiver 1502 includes at least two antenna ports.
在图15中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1501代表的一个或多个处理器和存储器1503代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1502可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1504还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 15, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1501 and various circuits of memory represented by memory 1503. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 1502 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 1504 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
处理器1501负责管理总线架构和通常的处理,存储器1503可以存储处理器1501在执行操作时所使用的数据。The processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1503 can store data used by the processor 1501 when performing operations.
可选的,当在所述第二时间资源,使用第一天线端口发送所述SSS时,在所述第五时间资源,使用第二天线端口再次发送所述SSS;Optionally, when the SSS is sent by using the first antenna port in the second time resource, the SSS is sent again by using the second antenna port in the fifth time resource;
当在所述第二时间资源,使用第二天线端口发送所述SSS时,在所述第五时间资源,使用第一天线端口再次发送所述SSS。When the SSS is transmitted using the second antenna port in the second time resource, the SSS is retransmitted using the first antenna port in the fifth time resource.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
处理器1501执行的使用第一天线端口发送所述SSS,包括:The sending, by the processor 1501, the SSS by using the first antenna port includes:
使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the first antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;
处理器1501执行的使用第二天线端口发送所述SSS,包括:The transmitting, by the processor 1501, using the second antenna port to send the SSS includes:
使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;
处理器1501执行的使用第一天线端口再次发送所述SSS,包括:The SSS performed by the processor 1501 to transmit the SSS again using the first antenna port includes:
使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the first antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;
处理器1501执行的使用第二天线端口再次发送所述SSS,包括:Resending the SSS by using the second antenna port performed by the processor 1501 includes:
使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列。Using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
处理器1501执行的在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS,包括:The transmitting, by the processor 1501, the SSS, using the first antenna port and/or the second antenna port, in the second time resource, includes:
在第二时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,且使用第二天线端口,占用第二预设频段发送所述第二随机序列;In the second time resource, using the first antenna port, occupying the first preset frequency band to send the first random sequence, and using the second antenna port, occupying the second preset frequency band to send the second random sequence;
处理器1501执行的在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS,包括:And transmitting, by the processor 1501, the SSS, by using the second antenna port and/or the first antenna port, in the fifth time resource, including:
在第五时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,且使用第一天线端口,占用第二预设频段发送所述第二随机序列。And in the fifth time resource, using the second antenna port, occupying the first preset frequency band to send the first random sequence, and using the first antenna port, occupying the second preset frequency band to send the second random sequence.
可选的,所述第一预设频段低于预设阈值,所述第二预设频段高于预设 阈值。Optionally, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
可选的,处理器1501执行的在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号,包括:Optionally, the third time resource that is executed by the processor 1501 is used to send the PBCH signal by using the first antenna port and the second antenna port, including:
在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号。In the third time resource, the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
可选的,处理器1501执行的在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号,包括:Optionally, the transmitting, by the processor 1501, the PBCH signal by using a first antenna port and a second antenna port, using a first antenna port and a second antenna port, by using space frequency diversity or space-time diversity, includes:
对第一PBCH信息符号和第二PBCH信息符号进行预编码,并在第三时间资源,使用第一天线端口和第二天线端口,发送预编码结果。Precoding the first PBCH information symbol and the second PBCH information symbol, and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
可选的,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Optionally, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot, and the second time The resource is the second OFDM symbol in the slot, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the sixth in the slot. An OFDM symbol, the fifth time resource being a seventh OFDM symbol in the slot.
需要说明的是,本实施例中上述网络侧设备1500可以是本公开实施例中方法实施例中任意实施方式的网络侧设备,本公开实施例中方法实施例中网络侧设备的任意实施方式都可以被本实施例中的上述网络侧设备1500所实现,以及达到相同的有益效果,此处不再赘述。It should be noted that, in the embodiment, the network side device 1500 may be the network side device in any of the method embodiments in the embodiment of the disclosure, and any implementation manner of the network side device in the method embodiment in the embodiment of the disclosure It can be implemented by the above network side device 1500 in this embodiment, and achieve the same beneficial effects, and details are not described herein again.
第十二实施例Twelfth embodiment
参见图16,图16是本公开实施例应用的用户终端的结构图,能够实现第三实施例中的同步信号的接收方法的细节,并达到相同的效果,其中,同步接入信号组包括PSS、SSS和PBCH信号。如图16所示,用户终端1600包括:至少一个处理器1601、存储器1602、至少一个网络接口1604和用户接口1603。终端1600中的各个组件通过总线***1605耦合在一起。可理解,总线***1605用于实现这些组件之间的连接通信。总线***1605除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说 明起见,在图16中将各种总线都标为总线***1605。Referring to FIG. 16, FIG. 16 is a structural diagram of a user terminal according to an embodiment of the present disclosure, which can implement the details of the method for receiving a synchronization signal in the third embodiment, and achieve the same effect, wherein the synchronization access signal group includes a PSS. , SSS and PBCH signals. As shown in FIG. 16, the user terminal 1600 includes at least one processor 1601, a memory 1602, at least one network interface 1604, and a user interface 1603. The various components in terminal 1600 are coupled together by a bus system 1605. It will be appreciated that the bus system 1605 is used to implement connection communication between these components. The bus system 1605 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are labeled as bus system 1605 in FIG.
其中,用户接口1603可以包括显示器、键盘或者点击设备(例如,鼠标,轨迹球(track ball)、触感板或者触摸屏等。The user interface 1603 may include a display, a keyboard, or a pointing device (eg, a mouse, a track ball, a touch pad, or a touch screen, etc.).
可以理解,本公开实施例中的存储器1602可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本文描述的***和方法的存储器1602旨在包括但不限于这些和任意其它适合类型的存储器。It is to be understood that the memory 1602 in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (SDRAM) And direct memory bus random access memory (DRRAM). The memory 1602 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
在一些实施方式中,存储器1602存储了如下的元素,可执行模块或者数据结构,或者他们的子集,或者他们的扩展集:操作***16021和应用程序16022。In some implementations, the memory 1602 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 16021 and an application 16022.
其中,操作***16021,包含各种***程序,例如框架层、核心库层、驱动层等,用于实现各种基础业务以及处理基于硬件的任务。应用程序16022,包含各种应用程序,例如媒体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序16022中。The operating system 16021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 16022 includes various applications, such as a media player (Media Player), a browser, and the like, for implementing various application services. A program implementing the method of the embodiments of the present disclosure may be included in the application 16022.
在本公开实施例中,通过调用存储器1602存储的程序或指令,具体的,可以是应用程序16022中存储的程序或指令,处理器1601用于:In the embodiment of the present disclosure, by calling the program or instruction stored in the memory 1602, specifically, the program or instruction stored in the application 16022, the processor 1601 is configured to:
在第一时间资源,使用第三天线端口检测所述PSS;In the first time resource, detecting the PSS by using a third antenna port;
在第二时间资源,使用第三天线端口和/或第四天线端口,检测所述SSS;In the second time resource, using the third antenna port and/or the fourth antenna port, detecting the SSS;
在第四时间资源,使用第三天线端口再次检测所述PSS;At a fourth time resource, detecting the PSS again using a third antenna port;
在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS;In the fifth time resource, using the fourth antenna port and/or the third antenna port, detecting the SSS again;
利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;Performing time and frequency synchronization by using the detected PSS and the SSS, performing channel estimation by using the detected SSS, and acquiring a channel estimation result;
在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected using the third antenna port and the fourth antenna port.
上述本公开实施例揭示的方法可以应用于处理器1601中,或者由处理器1601实现。处理器1601可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器1601中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1601可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1602,处理器1601读取存储器1602中的信息,结合其硬件完成上述方法的步骤。The method disclosed in the above embodiments of the present disclosure may be applied to the processor 1601 or implemented by the processor 1601. The processor 1601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1601 or an instruction in a form of software. The processor 1601 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1602, and the processor 1601 reads the information in the memory 1602 and completes the steps of the above method in combination with its hardware.
可以理解的是,本文描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。It will be appreciated that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described herein In an electronic unit or a combination thereof.
对于软件实现,可通过执行本文所述功能的模块(例如过程、函数等)来实现本文所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。For a software implementation, the techniques described herein can be implemented by modules (eg, procedures, functions, and so on) that perform the functions described herein. The software code can be stored in memory and executed by the processor. The memory can be implemented in the processor or external to the processor.
可选的,当在所述第二时间资源,使用第三天线端口检测所述SSS时,在所述第五时间资源,使用第四天线端口再次检测所述SSS;Optionally, when the SSS is detected by using the third antenna port in the second time resource, the SSS is detected again by using the fourth antenna port in the fifth time resource;
当在所述第二时间资源,使用第四天线端口检测所述SSS时,在所述第五时间资源,使用第三天线端口再次检测所述SSS。When the SSS is detected using the fourth antenna port at the second time resource, the SSS is detected again using the third antenna port at the fifth time resource.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
处理器1601执行的使用第三天线端口检测所述SSS,包括:Detecting the SSS by using the third antenna port performed by the processor 1601 includes:
使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;Using the third antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
处理器1601执行的使用第四天线端口检测所述SSS,包括:The detecting, by the processor 1601, using the fourth antenna port to detect the SSS includes:
使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;Using the fourth antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
处理器1601执行的使用第三天线端口再次检测所述SSS,包括:The SSS performed by the processor 1601 to detect the SSS again using the third antenna port includes:
使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;Using the third antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;
处理器1601执行的使用第四天线端口再次检测所述SSS,包括:The SSS performed by the processor 1601 to detect the SSS again using the fourth antenna port includes:
再次使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列。The fourth antenna port is used again, the first random sequence is detected by the first preset frequency band, and the second random sequence is detected by the second preset frequency band.
可选的,所述SSS包括第一随机序列和第二随机序列;Optionally, the SSS includes a first random sequence and a second random sequence;
处理器1601执行的在第二时间资源,使用第三天线端口和/或第四天线端口检测所述SSS,包括:The detecting, by the processor 1601, the SSS, using the third antenna port and/or the fourth antenna port, in the second time resource, includes:
在第二时间资源,使用第三天线端口,通过第一预设频段检测所述第一随机序列,且使用第四天线端口,通过第二预设频段检测所述第二随机序列;In the second time resource, using the third antenna port, detecting the first random sequence by using the first preset frequency band, and using the fourth antenna port, detecting the second random sequence by using the second preset frequency band;
处理器1601执行的在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS,包括:The fifth time resource executed by the processor 1601, using the fourth antenna port and/or the third antenna port, to detect the SSS again, including:
在第五时间资源,使用第四天线端口,通过第一预设频段检测所述第一随机序列,且使用第三天线端口,通过第二预设频段检测所述第二随机序列。And in the fifth time resource, using the fourth antenna port, detecting the first random sequence by using the first preset frequency band, and using the third antenna port, detecting the second random sequence by using the second preset frequency band.
可选的,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。Optionally, the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
可选的,处理器1601执行的在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号,包括:Optionally, the third time resource is executed by the processor 1601, and the PBCH signal is detected by using the third antenna port and the fourth antenna port by using the channel estimation result, including:
在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口,通过空频分集或者空时分集的方式检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
可选的,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。Optionally, the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, the third time resource, the fourth time resource, and the fifth Time resources.
可选的,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。Optionally, the time resource corresponding to the synchronization access signal group is a slot, the first time resource is a first orthogonal frequency division multiplexing OFDM symbol in the slot, and the second time The resource is the second OFDM symbol in the slot, the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, and the fourth time resource is the sixth in the slot. An OFDM symbol, the fifth time resource being a seventh OFDM symbol in the slot.
需要说明的是,本实施例中上述用户终端1600可以是本公开实施例中方法实施例中任意实施方式的用户终端,本公开实施例中方法实施例中用户终端的任意实施方式都可以被本实施例中的上述用户终端1600所实现,以及达到相同的有益效果,此处不再赘述。It should be noted that, in the embodiment, the user terminal 1600 may be a user terminal in any embodiment of the method in the embodiment of the disclosure, and any implementation manner of the user terminal in the method embodiment of the disclosure may be used in this embodiment. The above-mentioned user terminal 1600 in the embodiment is implemented, and the same beneficial effects are achieved, and details are not described herein again.
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
在本申请所提供的实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的 划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。In the embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本公开实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present disclosure.
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the portion of the technical solution of the present disclosure that contributes in essence or to the prior art or the portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以权利要求的保护范围为准。The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the disclosure. It should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosure should be determined by the scope of the claims.
Claims (39)
- 一种同步接入信号组的发送方法,其中,所述同步接入信号组包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,所述方法包括:A method for transmitting a synchronization access signal group, wherein the synchronization access signal group includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH signal, the method comprising:在第一时间资源,使用第一天线端口发送所述PSS;Transmitting, by the first antenna port, the PSS in the first time resource;在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;Transmitting, by the first antenna port and/or the second antenna port, the SSS in the second time resource;在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;Transmitting, by the first antenna port and the second antenna port, the PBCH signal in the third time resource;在第四时间资源,使用第一天线端口再次发送所述PSS;Transmitting the PSS again using the first antenna port in the fourth time resource;在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。At the fifth time resource, the SSS is transmitted again using the second antenna port and/or the first antenna port.
- 如权利要求1所述的方法,其中,当在所述第二时间资源,使用第一天线端口发送所述SSS时,在所述第五时间资源,使用第二天线端口再次发送所述SSS;The method of claim 1, wherein when the SSS is transmitted using the first antenna port in the second time resource, the SSS is retransmitted using the second antenna port in the fifth time resource;当在所述第二时间资源,使用第二天线端口发送所述SSS时,在所述第五时间资源,使用第一天线端口再次发送所述SSS。When the SSS is transmitted using the second antenna port in the second time resource, the SSS is retransmitted using the first antenna port in the fifth time resource.
- 如权利要求2所述的方法,其中,所述SSS包括第一随机序列和第二随机序列;The method of claim 2 wherein said SSS comprises a first random sequence and a second random sequence;所述使用第一天线端口发送所述SSS,包括:Transmitting the SSS by using the first antenna port includes:使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the first antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;所述使用第二天线端口发送所述SSS,包括:Transmitting the SSS by using the second antenna port includes:使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;所述使用第一天线端口再次发送所述SSS,包括:The transmitting the SSS again by using the first antenna port includes:使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;Using the first antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence;所述使用第二天线端口再次发送所述SSS,包括:The transmitting the SSS again by using the second antenna port includes:使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第 二预设频段发送所述第二随机序列。Using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence.
- 如权利要求1所述的方法,其中,所述SSS包括第一随机序列和第二随机序列;The method of claim 1 wherein said SSS comprises a first random sequence and a second random sequence;所述在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS,包括:Transmitting the SSS by using the first antenna port and/or the second antenna port in the second time resource, including:在第二时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,且使用第二天线端口,占用第二预设频段发送所述第二随机序列;In the second time resource, using the first antenna port, occupying the first preset frequency band to send the first random sequence, and using the second antenna port, occupying the second preset frequency band to send the second random sequence;所述在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS,包括:And transmitting, in the fifth time resource, the SSS by using the second antenna port and/or the first antenna port, including:在第五时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,且使用第一天线端口,占用第二预设频段发送所述第二随机序列。And in the fifth time resource, using the second antenna port, occupying the first preset frequency band to send the first random sequence, and using the first antenna port, occupying the second preset frequency band to send the second random sequence.
- 如权利要求3或4所述的方法,其中,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。The method according to claim 3 or 4, wherein the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
- 如权利要求1至4任一项所述的方法,其中,所述在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号,包括:The method of any one of claims 1 to 4, wherein the transmitting, at the third time resource, the PBCH signal using the first antenna port and the second antenna port comprises:在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号。In the third time resource, the PBCH signal is transmitted by using a first antenna port and a second antenna port by using space frequency diversity or space time diversity.
- 如权利要求6所述的方法,其中,所述在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号,包括:The method of claim 6, wherein the transmitting, by using the first antenna port and the second antenna port, the PBCH signal by means of space frequency diversity or space-time diversity, in the third time resource, comprises:对第一PBCH信息符号和第二PBCH信息符号进行预编码,并在第三时间资源,使用第一天线端口和第二天线端口,发送预编码结果。Precoding the first PBCH information symbol and the second PBCH information symbol, and transmitting the precoding result using the first antenna port and the second antenna port at the third time resource.
- 如权利要求1至4任一项所述的方法,其中,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。The method according to any one of claims 1 to 4, wherein the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, and the third time resource. And the fourth time resource and the fifth time resource.
- 如权利要求8所述的方法,其中,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源 为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。The method according to claim 8, wherein the time resource corresponding to the synchronization access signal group is a slot, and the first time resource is a first orthogonal frequency division multiplexing OFDM in the slot. a symbol, the second time resource is a second OFDM symbol in the slot, the third time resource is a third, fourth, and fifth OFDM symbol in the slot, and the fourth time resource is a The sixth OFDM symbol in the slot, the fifth time resource is the 7th OFDM symbol in the slot.
- 一种同步接入信号组的接收方法,其中,所述同步接入信号组包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,所述方法包括:A method for receiving a synchronization access signal group, wherein the synchronization access signal group includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH signal, the method comprising:在第一时间资源,使用第三天线端口检测所述PSS;In the first time resource, detecting the PSS by using a third antenna port;在第二时间资源,使用第三天线端口和/或第四天线端口,检测所述SSS;In the second time resource, using the third antenna port and/or the fourth antenna port, detecting the SSS;在第四时间资源,使用第三天线端口再次检测所述PSS;At a fourth time resource, detecting the PSS again using a third antenna port;在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS;In the fifth time resource, using the fourth antenna port and/or the third antenna port, detecting the SSS again;利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;Performing time and frequency synchronization by using the detected PSS and the SSS, performing channel estimation by using the detected SSS, and acquiring a channel estimation result;在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected using the third antenna port and the fourth antenna port.
- 如权利要求10所述的方法,其中,当在所述第二时间资源,使用第三天线端口检测所述SSS时,在所述第五时间资源,使用第四天线端口再次检测所述SSS;The method of claim 10, wherein when the SSS is detected using the third antenna port in the second time resource, the SSS is detected again using the fourth antenna port in the fifth time resource;当在所述第二时间资源,使用第四天线端口检测所述SSS时,在所述第五时间资源,使用第三天线端口再次检测所述SSS。When the SSS is detected using the fourth antenna port at the second time resource, the SSS is detected again using the third antenna port at the fifth time resource.
- 如权利要求11所述的方法,其中,所述SSS包括第一随机序列和第二随机序列;The method of claim 11 wherein said SSS comprises a first random sequence and a second random sequence;所述使用第三天线端口检测所述SSS,包括:The detecting the SSS by using the third antenna port includes:使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;Using the third antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;所述使用第四天线端口检测所述SSS,包括:The detecting the SSS by using the fourth antenna port includes:使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;Using the fourth antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;所述使用第三天线端口再次检测所述SSS,包括:The detecting the SSS again by using the third antenna port includes:使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第 二预设频段检测所述第二随机序列;Using the third antenna port, detecting the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band;所述使用第四天线端口再次检测所述SSS,包括:The detecting the SSS again by using the fourth antenna port includes:使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列。Using the fourth antenna port, the first random sequence is detected by the first preset frequency band, and the second random sequence is detected by the second preset frequency band.
- 如权利要求10所述的方法,其中,所述SSS包括第一随机序列和第二随机序列;The method of claim 10 wherein said SSS comprises a first random sequence and a second random sequence;所述在第二时间资源,使用第三天线端口和/或第四天线端口检测所述SSS,包括:In the second time resource, detecting the SSS by using the third antenna port and/or the fourth antenna port, including:在第二时间资源,使用第三天线端口,通过第一预设频段检测所述第一随机序列,且使用第四天线端口,通过第二预设频段检测所述第二随机序列;In the second time resource, using the third antenna port, detecting the first random sequence by using the first preset frequency band, and using the fourth antenna port, detecting the second random sequence by using the second preset frequency band;所述在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS,包括:In the fifth time resource, using the fourth antenna port and/or the third antenna port to detect the SSS again, including:在第五时间资源,使用第四天线端口,通过第一预设频段检测所述第一随机序列,且使用第三天线端口,通过第二预设频段检测所述第二随机序列。And in the fifth time resource, using the fourth antenna port, detecting the first random sequence by using the first preset frequency band, and using the third antenna port, detecting the second random sequence by using the second preset frequency band.
- 如权利要求12或13所述的方法,其中,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。The method according to claim 12 or 13, wherein the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
- 如权利要求10至13任一项所述的方法,其中,所述在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号,包括:The method according to any one of claims 10 to 13, wherein the detecting, by the third time resource, the PBCH signal using the third antenna port and the fourth antenna port by using the channel estimation result comprises:在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口,通过空频分集或者空时分集的方式检测所述PBCH信号。At the third time resource, using the channel estimation result, the PBCH signal is detected by space frequency diversity or space time diversity using the third antenna port and the fourth antenna port.
- 如权利要求10至13任一项所述的方法,其中,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。The method according to any one of claims 10 to 13, wherein the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, and the third time resource. And the fourth time resource and the fifth time resource.
- 如权利要求16所述的方法,其中,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7 个OFDM符号。The method according to claim 16, wherein the time resource corresponding to the synchronization access signal group is a slot, and the first time resource is a first orthogonal frequency division multiplexing OFDM in the slot. a symbol, the second time resource is a second OFDM symbol in the slot, the third time resource is a third, fourth, and fifth OFDM symbol in the slot, and the fourth time resource is a The sixth OFDM symbol in the slot, the fifth time resource is the 7th OFDM symbol in the slot.
- 一种网络侧设备,用于同步接入信号级的发送,其中,所述同步接入信号组包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,所述网络侧设备包括:A network side device, configured to synchronize transmission of an access signal level, where the synchronization access signal group includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH signal, where the network side device includes:第一发送模块,用于在第一时间资源,使用第一天线端口发送所述PSS;a first sending module, configured to send the PSS by using a first antenna port in a first time resource;第二发送模块,用于在第二时间资源,使用第一天线端口和/或第二天线端口发送所述SSS;a second sending module, configured to send the SSS by using a first antenna port and/or a second antenna port in a second time resource;第三发送模块,用于在第三时间资源,使用第一天线端口和第二天线端口发送所述PBCH信号;a third sending module, configured to send the PBCH signal by using the first antenna port and the second antenna port in the third time resource;第四发送模块,用于在第四时间资源,使用第一天线端口再次发送所述PSS;a fourth sending module, configured to send the PSS again by using the first antenna port in the fourth time resource;第五发送模块,用于在第五时间资源,使用第二天线端口和/或第一天线端口再次发送所述SSS。And a fifth sending module, configured to send the SSS again by using the second antenna port and/or the first antenna port in the fifth time resource.
- 如权利要求18所述的网络侧设备,其中,当在所述第二时间资源,使用第一天线端口发送所述SSS时,在所述第五时间资源,使用第二天线端口再次发送所述SSS;The network side device according to claim 18, wherein, when the SSS is transmitted using the first antenna port in the second time resource, the second time resource is used to resend the SSS;当在所述第二时间资源,使用第二天线端口发送所述SSS时,在所述第五时间资源,使用第一天线端口再次发送所述SSS。When the SSS is transmitted using the second antenna port in the second time resource, the SSS is retransmitted using the first antenna port in the fifth time resource.
- 如权利要求19所述的网络侧设备,其中,所述SSS包括第一随机序列和第二随机序列;The network side device according to claim 19, wherein the SSS comprises a first random sequence and a second random sequence;所述第二发送模块,具体用于在第二时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;或者具体用于在第二时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列The second sending module is configured to: in the second time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and occupy the second preset frequency band to send the second random sequence; Or the second random port is used to transmit the first random sequence in the first preset frequency band, and the second random frequency sequence is sent in the second preset frequency band.所述第四发送模块,具体用于在第四时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列;或者具体用于在第四时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,占用第二预设频段发送所述第二随机序列。The fourth sending module is configured to: in the fourth time resource, use the first antenna port, occupy the first preset frequency band to send the first random sequence, and occupy the second preset frequency band to send the second random sequence; Or, in the fourth time resource, using the second antenna port, occupying the first preset frequency band to send the first random sequence, and occupying the second preset frequency band to send the second random sequence.
- 如权利要求18所述的网络侧设备,其中,所述SSS包括第一随机序 列和第二随机序列;The network side device according to claim 18, wherein said SSS comprises a first random sequence and a second random sequence;所述第二发送模块,具体用于在第二时间资源,使用第一天线端口,占用第一预设频段发送所述第一随机序列,且使用第二天线端口,占用第二预设频段发送所述第二随机序列;The second sending module is configured to: in the second time resource, use the first antenna port, occupy the first preset frequency band, and send the first random sequence, and use the second antenna port to occupy the second preset frequency band. The second random sequence;所述第五发送模块,具体用于在第五时间资源,使用第二天线端口,占用第一预设频段发送所述第一随机序列,且使用第一天线端口,占用第二预设频段发送所述第二随机序列。The fifth sending module is configured to: in the fifth time resource, use the second antenna port, occupy the first preset frequency band, and send the first random sequence, and use the first antenna port to occupy the second preset frequency band. The second random sequence.
- 如权利要求20或21所述的网络侧设备,其中,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。The network side device according to claim 20 or 21, wherein the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
- 如权利要求18至21任一项所述的网络侧设备,其中,所述第三发送模块,具体用于在第三时间资源,使用第一天线端口和第二天线端口,利用空频分集或者空时分集的方式,发送所述PBCH信号。The network side device according to any one of claims 18 to 21, wherein the third sending module is specifically configured to use the first antenna port and the second antenna port in the third time resource, using space frequency diversity or The PBCH signal is transmitted in a space-time diversity manner.
- 如权利要求23所述的网络侧设备,其中,所述第三发送模块,具体用于对第一PBCH信息符号和第二PBCH信息符号进行预编码,并在第三时间资源,使用第一天线端口和第二天线端口,发送预编码结果。The network side device according to claim 23, wherein the third sending module is specifically configured to precode the first PBCH information symbol and the second PBCH information symbol, and use the first antenna in the third time resource. The port and the second antenna port transmit precoding results.
- 如权利要求18至21任一项所述的网络侧设备,其中,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。The network side device according to any one of claims 18 to 21, wherein the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, and the third a time resource, the fourth time resource, and the fifth time resource.
- 如权利要求25所述的网络侧设备,其中,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。The network side device according to claim 25, wherein the time resource corresponding to the synchronization access signal group is a slot, and the first time resource is a first orthogonal frequency division in the slot. Using the OFDM symbol, the second time resource is the 2nd OFDM symbol in the slot, and the third time resource is the 3rd, 4th, and 5th OFDM symbols in the slot, the fourth time resource For the 6th OFDM symbol in the slot, the fifth time resource is the 7th OFDM symbol in the slot.
- 一种用户终端,用于同步接入信号组的接收,其中,所述同步接入信号组包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,所述用户终端包括:A user terminal is configured to synchronize the reception of the access signal group, wherein the synchronization access signal group includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH signal, and the user terminal includes:第一检测模块,用于在第一时间资源,使用第三天线端口检测所述PSS;a first detecting module, configured to detect the PSS by using a third antenna port in a first time resource;第二检测模块,用于在第二时间资源,使用第三天线端口和/或第四天线 端口,检测所述SSS;a second detecting module, configured to detect the SSS by using a third antenna port and/or a fourth antenna port in a second time resource;第三检测模块,用于在第四时间资源,使用第三天线端口再次检测所述PSS;a third detecting module, configured to detect the PSS again by using a third antenna port in the fourth time resource;第四检测模块,用于在第五时间资源,使用第四天线端口和/或第三天线端口,再次检测所述SSS;a fourth detecting module, configured to detect the SSS again by using the fourth antenna port and/or the third antenna port in the fifth time resource;同步模块,用于利用检测到的所述PSS和所述SSS,进行时间和频率同步,利用检测到的所述SSS进行信道估计,获取信道估计结果;a synchronization module, configured to perform time and frequency synchronization by using the detected PSS and the SSS, perform channel estimation by using the detected SSS, and obtain a channel estimation result;第五检测模块,用于在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口检测所述PBCH信号。And a fifth detecting module, configured to detect the PBCH signal by using the third antenna port and the fourth antenna port by using the channel estimation result at the third time resource.
- 如权利要求27所述的用户终端,其中,当在所述第二时间资源,使用第三天线端口检测所述SSS时,在所述第五时间资源,使用第四天线端口再次检测所述SSS;The user terminal according to claim 27, wherein, when the SSS is detected using the third antenna port in the second time resource, the SSS is detected again using the fourth antenna port in the fifth time resource ;当在所述第二时间资源,使用第四天线端口检测所述SSS时,在所述第五时间资源,使用第三天线端口再次检测所述SSS。When the SSS is detected using the fourth antenna port at the second time resource, the SSS is detected again using the third antenna port at the fifth time resource.
- 如权利要求27所述的用户终端,其中,所述SSS包括第一随机序列和第二随机序列;The user terminal of claim 27, wherein the SSS comprises a first random sequence and a second random sequence;所述第二检测模块,具体用于在第二时间资源,使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;或者具体用于在第二时间资源,使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;The second detecting module is configured to: in the second time resource, use the third antenna port, detect the first random sequence by using the first preset frequency band, and detect the second random sequence by using the second preset frequency band; Or specifically, in the second time resource, using the fourth antenna port, detecting the first random sequence by using the first preset frequency band, and detecting the second random sequence by using the second preset frequency band;所述第四检测模块,具体用于使用第三天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列;或者具体用于使用第四天线端口,通过第一预设频段检测所述第一随机序列,通过第二预设频段检测所述第二随机序列。The fourth detecting module is configured to: detect, by using a third antenna port, the first random sequence by using a first preset frequency band, and detecting the second random sequence by using a second preset frequency band; or specifically for using the The four antenna ports detect the first random sequence by using a first preset frequency band, and detect the second random sequence by using a second preset frequency band.
- 如权利要求27所述的用户终端,其中,所述SSS包括第一随机序列和第二随机序列;The user terminal of claim 27, wherein the SSS comprises a first random sequence and a second random sequence;所述第二检测模块,具体用于在第二时间资源,使用第三天线端口,通过第一预设频段检测所述第一随机序列,且使用第四天线端口,通过第二预设频段检测所述第二随机序列;The second detecting module is configured to: in the second time resource, use the third antenna port, detect the first random sequence by using the first preset frequency band, and use the fourth antenna port to detect by using the second preset frequency band The second random sequence;所述第四检测模块,具体用于在第五时间资源,使用第四天线端口,通过第一预设频段检测所述第一随机序列,且使用第三天线端口,通过第二预设频段检测所述第二随机序列。The fourth detecting module is configured to: in the fifth time resource, use the fourth antenna port, detect the first random sequence by using the first preset frequency band, and use the third antenna port to detect by using the second preset frequency band The second random sequence.
- 如权利要求29或30所述的用户终端,其中,所述第一预设频段低于预设阈值,所述第二预设频段高于预设阈值。The user terminal according to claim 29 or 30, wherein the first preset frequency band is lower than a preset threshold, and the second preset frequency band is higher than a preset threshold.
- 如权利要求27至30任一项所述的用户终端,其中,所述第五检测模块,具体用于在第三时间资源,利用所述信道估计结果,使用第三天线端口和第四天线端口,通过空频分集或者空时分集的方式检测所述PBCH信号。The user terminal according to any one of claims 27 to 30, wherein the fifth detecting module is configured to use the third antenna port and the fourth antenna port by using the channel estimation result in the third time resource. The PBCH signal is detected by space frequency diversity or space time diversity.
- 如权利要求27至30任一项所述的用户终端,其中,与所述同步接入信号组对应的时间资源,包括所述第一时间资源、所述第二时间资源、所述第三时间资源、所述第四时间资源和所述第五时间资源。The user terminal according to any one of claims 27 to 30, wherein the time resource corresponding to the synchronization access signal group includes the first time resource, the second time resource, and the third time a resource, the fourth time resource, and the fifth time resource.
- 如权利要求33所述的用户终端,其中,与所述同步接入信号组对应的时间资源为时隙slot,所述第一时间资源为所述slot中的第1个正交频分复用OFDM符号,所述第二时间资源为所述slot中的第2个OFDM符号,所述第三时间资源为所述slot中的第3、4和5个OFDM符号,所述第四时间资源为所述slot中的第6个OFDM符号,所述第五时间资源为所述slot中的第7个OFDM符号。The user terminal according to claim 33, wherein the time resource corresponding to the synchronization access signal group is a slot, and the first time resource is the first orthogonal frequency division multiplexing in the slot. OFDM symbol, the second time resource is a second OFDM symbol in the slot, the third time resource is a third, fourth, and fifth OFDM symbols in the slot, and the fourth time resource is The sixth OFDM symbol in the slot, and the fifth time resource is the seventh OFDM symbol in the slot.
- 一种同步接入信号组的传输***,,包括如权利要求18至26中任一项所述网络侧设备和如权利要求27至34中任一项所述用户终端。A transmission system for synchronizing access signal groups, comprising the network side device according to any one of claims 18 to 26 and the user terminal according to any one of claims 27 to 34.
- 一种网络侧设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至9中任一项所述的同步接入信号组的发送方法中的步骤。A network side device comprising: a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program being executed by the processor to implement the claims 1 to 9 The step in the method of transmitting a synchronization access signal group according to any one of the preceding claims.
- 一种移动终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求10至17中任一项所述的同步接入信号组的接收方法中的步骤。A mobile terminal comprising: a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program being implemented by the processor as claimed in claims 10 to 17 The step of the method of receiving a synchronization access signal group according to any one of the preceding claims.
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至9中任一项所述的同步接入信号组的发送方法中的步骤。A computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the synchronization access signal group according to any one of claims 1 to 9. The steps in the send method.
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算 机程序,所述计算机程序被处理器执行时实现如权利要求10至17中任一项所述的同步接入信号组的接收方法中的步骤。A computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the synchronization access signal group according to any one of claims 10 to 17. The steps in the receiving method.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102624489A (en) * | 2012-03-20 | 2012-08-01 | 电信科学技术研究院 | Enhanced control channel transmission method, device and system |
WO2014098401A1 (en) * | 2012-12-20 | 2014-06-26 | 주식회사 팬택 | Terminal, method whereby terminal receives information, base station, and method whereby base station transmits information |
CN104113387A (en) * | 2013-04-19 | 2014-10-22 | 中兴通讯股份有限公司 | Processing method, device and system of synchronous signals, channel estimation method and device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101527595B (en) * | 2008-03-07 | 2013-02-27 | 中兴通讯股份有限公司 | Frame structure of time division duplex system and method for sending synchronous signals |
US8914053B2 (en) * | 2011-11-11 | 2014-12-16 | Fujitsu Limited | System and method for selecting transceivers to provide wireless communication service for a wireless user endpoint |
CN103379072B (en) * | 2012-04-20 | 2016-12-14 | 电信科学技术研究院 | A kind of method for transmitting signals and device |
WO2016041463A1 (en) * | 2014-09-18 | 2016-03-24 | Huawei Technologies Co., Ltd. | Common broadcast channel low papr signaling in massive mimo systems |
CN108307496B (en) * | 2017-01-13 | 2020-01-07 | 维沃移动通信有限公司 | Sending method, receiving method, related equipment and system of synchronous access signal group |
-
2017
- 2017-02-10 CN CN201710073848.0A patent/CN108418646B/en active Active
- 2017-12-29 WO PCT/CN2017/119738 patent/WO2018145531A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102624489A (en) * | 2012-03-20 | 2012-08-01 | 电信科学技术研究院 | Enhanced control channel transmission method, device and system |
WO2014098401A1 (en) * | 2012-12-20 | 2014-06-26 | 주식회사 팬택 | Terminal, method whereby terminal receives information, base station, and method whereby base station transmits information |
CN104113387A (en) * | 2013-04-19 | 2014-10-22 | 中兴通讯股份有限公司 | Processing method, device and system of synchronous signals, channel estimation method and device |
Non-Patent Citations (2)
Title |
---|
HTC: "Transmissions of PSS/SSS and DM-RS in Unsynchronised New Carriers", 3GPP TSG RAN WG1 MEETING #72 R1-130306, 1 February 2013 (2013-02-01), XP050663403 * |
INTEL CORPORATION.: "On PBCH and PSS/SSS Detection for FelCIC", 3GPP TSG-RAN WG4 MEETING #64 R4-124629, 17 August 2012 (2012-08-17), XP050672207 * |
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