CN108811076B

CN108811076B - Downlink synchronization method and device

Info

Publication number: CN108811076B
Application number: CN201710314200.8A
Authority: CN
Inventors: 袁璞; 刘瑾; 罗俊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2020-12-08
Anticipated expiration: 2037-05-05
Also published as: WO2018202115A1; CN108811076A

Abstract

The embodiment of the application provides a downlink synchronization method and equipment, wherein network equipment generates a synchronization signal block in each wireless frame according to the frame number of each wireless frame in the transmission period of a synchronization signal array set and the time index number of the synchronization signal block in each wireless frame; the transmission period comprises two continuous wireless frames; the synchronous signal array set comprises M synchronous signal blocks; and then sending two continuous wireless frames to the terminal, wherein one wireless frame comprises a part of synchronous signal blocks in the synchronous signal array, and the other wireless frame comprises the other part of synchronous signal blocks in the synchronous signal array. The two continuous wireless frames respectively comprise synchronous signal blocks, the synchronous signal blocks in different wireless frames are different, the frame numbers of different wireless frames can be indicated through the synchronous signal blocks in different wireless frames, the time index numbers of different synchronous signal blocks can be indicated through different synchronous signal blocks, and resources occupied for indicating the time positions of the synchronous signal blocks are saved.

Description

Downlink synchronization method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a downlink synchronization method and downlink synchronization equipment.

Background

When the terminal accesses the cell, the cell search and the downlink synchronization are firstly carried out. In this process, the terminal detects a Synchronization Signal (SS) and decodes a Physical Broadcast Channel (PBCH), so as to obtain key system parameter information. The Synchronization signals include Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS).

In a Long Term Evolution (LTE) communication system, a PSS and a SSS both occupy 6 continuous Resource Blocks (RBs) and are configured at fixed time-frequency Resource positions in a radio frame. In New Radio (NR) communication systems, different structures are adopted for the design of synchronization signals. Due to the implementation of beam scanning (beam sweep), in order to improve the success rate of synchronous access, a synchronous signal is emitted by a plurality of beams. The PSS, SSS, and PBCH form a synchronization signal block (SS block) in a Time Division Multiplexing (TDM) manner. Each synchronization signal block is transmitted using one analog beam. The plurality of SS blocks form a synchronous signal array (SS burst), and the plurality of SS bursts form a synchronous signal array set (SS burst set). Each SS block in the SS burst set has a time index of the SS block, namely the position of the SS block in the SS burst set is marked. In NR, an SS burst set transmission period of 20ms is specified, spanning two radio frames. A Transmission and Reception Point (TRP) needs to carry indication information of a time position in an SS block to inform a terminal of the time position of the SS block, and if all the indication information is displayed and carried in the SS block, resource overhead is large.

Disclosure of Invention

The embodiment of the application provides a downlink synchronization method and downlink synchronization equipment, which are used for saving resources required by indicating the time position of a synchronization signal block.

In a first aspect, an embodiment of the present application provides a downlink synchronization method, including: the network equipment generates synchronous signal blocks in each wireless frame according to the frame number of each wireless frame in the transmission period of the synchronous signal array set and the time index number of the synchronous signal block in each wireless frame; the transmission period comprises two continuous wireless frames; the synchronization signal array set comprises M synchronization signal blocks; m is an integer greater than 0; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame;

and the network equipment sends two continuous wireless frames to a terminal, wherein one wireless frame comprises a part of synchronous signal blocks in the synchronous signal array, and the other wireless frame comprises the other part of synchronous signal blocks in the synchronous signal array.

In one possible design, the generating, by the network device, a synchronization signal block in each radio frame according to a frame number of each radio frame in a transmission period of a synchronization signal array set and a time index of the synchronization signal block in each radio frame includes:

for each synchronous signal block in the M synchronous signal blocks, the network equipment generates an auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of a wireless frame where the synchronous signal block is located; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number;

and the network equipment generates a Physical Broadcast Channel (PBCH) of the synchronous signal block according to the frame number of the wireless frame where the synchronous signal block is located and the time index number of the synchronous signal block.

In one possible design, the generating, by the network device, the secondary synchronization signal of the synchronization signal block according to the parity of the frame number of the radio frame in which the synchronization signal block is located includes:

the network equipment determines the sequence of the auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of the wireless frame in which the synchronous signal block is positioned; the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number;

and the network equipment generates an auxiliary synchronizing signal of the synchronizing signal block according to the sequence.

In one possible design, the frame number of the radio frame is an H-bit binary number; the 1 bit binary number of the H bit binary numbers is indicated by the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame; h is an integer greater than 0.

Wherein other H-1 bit binary numbers of the H bit binary numbers are indicated by PBCH of a synchronization signal block in the radio frame.

In one possible design, the H is 10; wherein 7-bit binary numbers of the other H-1 bit binary numbers are carried by the PBCH; the other 2-bit binary number of the other H-1-bit binary numbers is indicated by the PBCH scrambled blind detection result.

In one possible design, the time index number of the synchronization signal block is a K-bit binary number; k is an integer greater than 0.

Wherein a 1-bit binary number of the K-bit binary numbers is indicated by a secondary synchronization signal of the synchronization signal block or a parity of a frame number of the radio frame.

The other K-1 bit binary numbers of the K bit binary numbers are indicated by the PBCH of the synchronization signal block.

In one possible design, the other K-1 bit binary numbers are carried in the PBCH when K equals 6.

In one possible design, when K equals 6, 4 binary digits of the other K-1 binary digits are carried in the PBCH; and the other 1-bit binary number of the other K-1-bit binary numbers is indicated by a Cyclic Redundancy Check (CRC) mask blind Check result of the PBCH; the CRC mask blind test result is one of two different results.

In one possible design, when K equals 6, 3 of the other K-1 binary digits are carried in the PBCH; and the other 2-bit binary number of the other K-1 bit binary numbers is indicated by a CRC mask blind check result of the PBCH; the CRC mask blind detection result is one of four different results.

In one possible design, when K equals 3, the other K-1 bit binary numbers are indicated by a CRC mask blind check result of the PBCH; the CRC mask blind detection result is one of four different results.

In one possible design, when K equals 2, the other K-1 bit binary numbers are indicated by a CRC mask blind detect result of the PBCH, which is one of two different results.

In a second aspect, an embodiment of the present application provides a downlink synchronization method, including: the terminal receives two continuous wireless frames sent by the network equipment. The two continuous wireless frames are two continuous wireless frames in a synchronous signal array transmission period, wherein the synchronous signal array comprises M synchronous signal blocks; m is an integer greater than 0; one of the radio frames includes a part of the synchronous signal blocks in the synchronous signal array; and the other wireless frame comprises the other part of the synchronous signal blocks in the synchronous signal array. And the terminal determines the frame number of each wireless frame according to the synchronous signal block in each wireless frame. And the terminal determines the time index number of each synchronous signal block according to each synchronous signal block. The time index number is used for indicating the time position of the synchronous signal block in the wireless frame.

In one possible design, the determining, by the terminal, a frame number of each radio frame according to a synchronization signal block in each radio frame includes: and aiming at each wireless frame, the terminal determines the parity of the frame number of the wireless frame according to the auxiliary synchronous signal of the synchronous signal block in the wireless frame. The auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number. And the terminal determines the frame number of the wireless frame according to the parity of the frame number of the wireless frame and the PBCH of the synchronous signal block in the wireless frame.

In one possible design, the determining, by the terminal, parity of a frame number of the radio frame according to a secondary synchronization signal of a synchronization signal block in the radio frame includes: and the terminal determines the parity of the frame number of the wireless frame according to the sequence of the auxiliary synchronous signal of the synchronous signal block in the wireless frame. And the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the even frame number.

In one possible design, the frame number of the radio frame is an H-bit binary number; h is an integer greater than 0; the terminal determines a frame number of the radio frame, including: and the terminal determines 1 bit binary number of the H bit binary number according to the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame. And the terminal determines other H-1 bit binary numbers of the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame.

In one possible design, the H is 10; the terminal determines other H-1 bit binary numbers of the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame, and the method comprises the following steps: and the terminal determines 7-bit binary numbers in the other H-1-bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame.

And the terminal determines the other 2-bit binary number in the other H-1-bit binary numbers according to the PBCH scrambling blind detection result of the synchronization signal block in the wireless frame.

In one possible design, the determining, by the terminal, a time index of each of the synchronization signal blocks according to each of the synchronization signal blocks includes: and aiming at each synchronous signal block in the M synchronous signal blocks, the terminal determines the time index number of the synchronous signal block according to the PBCH of the synchronous signal block.

In one possible design, the time index number of the synchronization signal block is a K-bit binary number; k is an integer greater than 0. The terminal determines the time index number of the synchronization signal block according to the PBCH of the synchronization signal block, and the determination comprises the following steps: and the terminal determines 1 bit binary number in the K bit binary numbers according to the auxiliary synchronous signal of the synchronous signal block or the parity of the frame number of the wireless frame where the synchronous signal block is positioned. And the terminal determines other K-1 bit binary numbers in the K bit binary numbers according to the PBCH of the synchronization signal block.

In one possible design, the terminal determines other K-1 binary numbers of the K binary numbers according to a PBCH of the synchronization signal block, including:

and when K is equal to 6, the terminal determines the other K-1 bit binary numbers according to the PBCH of the synchronization signal block. Alternatively, the first and second electrodes may be,

when K is equal to 6, the terminal determines 4-bit binary numbers in the other K-1 bit binary numbers according to the PBCH of the synchronization signal block, and determines the other 1-bit binary numbers in the other K-1 bit binary numbers according to the CRC mask blind detection result of the PBCH; the CRC mask blind test result is one of two different results. Alternatively, the first and second electrodes may be,

when K is equal to 6, the terminal determines 3-bit binary numbers in the other K-1 bit binary numbers according to the PBCH of the synchronization signal block, and determines the other 2-bit binary numbers in the other K-1 bit binary numbers according to the CRC mask blind detection result of the PBCH; the CRC mask blind detection result is one of four different results. Alternatively, the first and second electrodes may be,

when K is equal to 3, the terminal determines the other K-1 bit binary numbers according to the CRC mask blind detection result in the PBCH of the synchronization signal block; the CRC mask blind detection result is one of four different results. Alternatively, the first and second electrodes may be,

and when K is equal to 2, the terminal determines the other K-1 bit binary numbers according to a CRC mask blind detection result in the PBCH of the synchronization signal block, wherein the CRC mask blind detection result is one of two different results.

In a third aspect, an embodiment of the present application provides a network device, including:

and the processing module is used for generating the synchronous signal blocks in each wireless frame according to the frame number of each wireless frame in the transmission period of the synchronous signal array set and the time index number of the synchronous signal block in each wireless frame. The transmission period comprises two continuous wireless frames; the synchronization signal array set includes M synchronization signal blocks. M is an integer greater than 0; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame.

And the sending module is used for sending two continuous wireless frames to a terminal. One of the wireless frames includes a part of the synchronous signal blocks in the synchronous signal array, and the other wireless frame includes the other part of the synchronous signal blocks in the synchronous signal array.

In one possible design, the processing module is specifically configured to: aiming at each synchronous signal block in the M synchronous signal blocks, generating an auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of a wireless frame where the synchronous signal block is positioned; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number. And generating the PBCH of the synchronous signal block according to the frame number of the wireless frame where the synchronous signal block is located and the time index number of the synchronous signal block.

In one possible design, the processing module is specifically configured to: determining the sequence of the auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of the wireless frame where the synchronous signal block is located; the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number; and generating an auxiliary synchronization signal of the synchronization signal block according to the sequence.

The other K-1 bit binary numbers of the K bit binary numbers are indicated by a PBCH of a synchronization signal block of the synchronization signal blocks.

In one possible design, when K equals 6, 4 binary digits of the other K-1 binary digits are carried in the PBCH; and the other 1-bit binary number of the other K-1-bit binary numbers is indicated by a CRC mask blind check result of the PBCH; the CRC mask blind test result is one of two different results.

In a fourth aspect, an embodiment of the present application provides a terminal, including:

the receiving module is used for receiving two continuous wireless frames sent by network equipment, wherein the two continuous wireless frames are two continuous wireless frames in a synchronous signal array transmission period, and the synchronous signal array comprises M synchronous signal blocks; m is an integer greater than 0; one of the radio frames includes a part of the synchronous signal blocks in the synchronous signal array; and the other wireless frame comprises the other part of the synchronous signal blocks in the synchronous signal array.

A determining module, configured to determine a frame number of each radio frame according to a synchronization signal block in each radio frame; determining a time index number of each synchronous signal block according to each synchronous signal block; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame.

In one possible design, the determining module is specifically configured to: for each wireless frame, determining the parity of the frame number of the wireless frame according to the auxiliary synchronous signal of the synchronous signal block in the wireless frame; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number; and determining the frame number of the wireless frame according to the parity of the frame number of the wireless frame and the PBCH of the synchronous signal block in the wireless frame.

In one possible design, the determining module is specifically configured to: determining the parity of the frame number of the wireless frame according to the sequence of the auxiliary synchronous signal of the synchronous signal block in the wireless frame; and the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the even frame number.

In one possible design, the frame number of the radio frame is an H-bit binary number; h is an integer greater than 0; the determining module is specifically configured to: determining 1 bit binary number of the H bit binary number according to an auxiliary synchronizing signal of a synchronizing signal block in the wireless frame; and determining other H-1 bit binary numbers of the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame.

In one possible design, the H is 10; the determining module is specifically configured to: determining 7-bit binary numbers in the other H-1-bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame; and determining the other 2-bit binary number in the other H-1-bit binary numbers according to the PBCH scrambling blind detection result of the synchronization signal block in the wireless frame.

In one possible design, the determining module is specifically configured to: and aiming at each synchronous signal block in the M synchronous signal blocks, determining the time index number of the synchronous signal block according to the PBCH of the synchronous signal block.

The determining module is specifically configured to: determining 1-bit binary number in the K-bit binary numbers according to the auxiliary synchronization signal of the synchronization signal block or the parity of the frame number of the wireless frame where the synchronization signal block is located; and determining other K-1 bit binary numbers in the K bit binary numbers according to the PBCH of the synchronous signal block.

In one possible design, the determining module is specifically configured to: and when K is equal to 6, determining the other K-1 bit binary numbers according to the PBCH of the synchronous signal block.

In one possible design, the determining module is specifically configured to: when K is equal to 6, determining 4-bit binary numbers in the other K-1 bit binary numbers according to PBCH of the synchronization signal block, and determining the other 1-bit binary numbers in the other K-1 bit binary numbers according to CRC mask blind detection results of the PBCH; the CRC mask blind test result is one of two different results.

In one possible design, the determining module is specifically configured to: when K is equal to 6, determining 3-bit binary number in the other K-1 bit binary numbers according to PBCH of the synchronization signal block, and determining the other 2-bit binary number in the other K-1 bit binary numbers according to CRC mask blind detection results of the PBCH; the CRC mask blind detection result is one of four different results.

In one possible design, the determining module is specifically configured to: when K is equal to 3, determining the other K-1 bit binary numbers according to a CRC mask blind detection result in the PBCH of the synchronization signal block; the CRC mask blind detection result is one of four different results.

In one possible design, the determining module is specifically configured to: and when K is equal to 2, determining the other K-1 bit binary numbers according to a CRC mask blind detection result in the PBCH of the synchronization signal block, wherein the CRC mask blind detection result is one of two different results.

In a fifth aspect, an embodiment of the present application provides a network device, including: a processor and a transceiver; the processor and the transceiver are configured to execute the downlink synchronization method according to any of the embodiments of the present application in the first aspect.

In a sixth aspect, an embodiment of the present application provides a terminal, including: a processor and a transceiver; the processor and the transceiver are configured to execute the downlink synchronization method according to any of the embodiments of the present application in the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions in the storage medium, when executed by a processor of a network device, enable the network device to perform the downlink synchronization method described in the embodiment of the present application in the first aspect.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to execute the downlink synchronization method described in the second aspect.

According to the downlink synchronization method and the downlink synchronization equipment provided by the embodiment of the application, the synchronization signal blocks in the synchronization signal array are sent on two continuous wireless frames, and the synchronization signal blocks in different wireless frames are different, so that the frame numbers of different wireless frames can be indicated through the synchronization signal blocks in different wireless frames, and the time index numbers of different synchronization signal blocks can be indicated through different synchronization signal blocks, so that resources occupied for indicating the time positions of the synchronization signal blocks are saved. The parity of the frame number of the wireless frame is indicated by the difference of the synchronous signal blocks on the wireless frame, so that the resource occupied by the frame number in the synchronous signal blocks is saved. In addition, the 1-bit characteristic information of the time index number of the synchronous signal block is indicated through the parity of different auxiliary synchronous signals or the frame number of the wireless frame, so that the resources occupied by the time index number in the synchronous signal block are saved.

Drawings

Fig. 1 is a schematic structural diagram of a system architecture according to an embodiment of the present application.

Fig. 2 is a flowchart of a downlink synchronization method according to an embodiment of the present application.

Fig. 3 is a schematic diagram of two consecutive radio frames according to an embodiment of the present application.

Fig. 4 is a schematic diagram of an SSB according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a network device according to a second embodiment of the present application.

Fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a terminal according to a second embodiment of the present application.

Detailed Description

In the following, some terms in the present application are explained to facilitate understanding by those skilled in the art:

a network device: a Radio Access Network (RAN) device is a device for accessing a terminal to a wireless Network, and may be a Base Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, or eNodeB) in Long Term Evolution (LTE), a relay Station or an Access Point, or a Base Station in a 5G Network, such as a Transmission and Reception Point (TRP), a controller, which is not limited herein.

A terminal: which may be wireless or wireline, and which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

Fig. 1 is a schematic structural diagram of a system architecture according to an embodiment of the present invention, and as shown in fig. 1, a communication network according to an embodiment of the present invention may include a plurality of TRPs and a controller, where one or more of the TRPs may form a super cell (super cell) to provide a service for a UE. The border of the super cell (Hyper cell) can be flexibly configured according to requirements. Fig. 1 illustrates two super cells (super cells) as an example, as shown in fig. 1, TRP1-1, TRP1-2 and TRP1-3 constitute super cell1 (super cell1), TRP2-1, TRP2-2, TRP2-3 and TRP2-4 constitute super cell2 (super cell2), and a UE may transmit uplink data using a plurality of TRPs. The frequency band adopted by the TRP may be low frequency or high frequency, and when the TRP is deployed in a high frequency mode, beamforming (beamforming) technology may be used to resist the vulnerability of the high frequency link. Each region of TRP may be covered by multiple narrow high gain beams (beams), and each TRP may communicate with a UE through multiple beams (beams). Before the TRP communicates with the UE, Time Synchronization (Time Synchronization) needs to be completed, specifically, the TRP transmits a Synchronization signal block (SS block) using different beams (beams), and the UE completes Time Synchronization according to the Synchronization signal block (SS block).

The SS block is used for downlink synchronization, and may include a PSS, an SSs, and a PBCH, and the UE may perform time synchronization using the PSS and the SSs, decode the PBCH, and acquire system parameter information. A plurality of SS blocks distributed in one same Slot (Slot) are called as a synchronization signal array (SS burst), and the plurality of SS bursts form a synchronization signal array set (SS burst set). One SS burst set corresponds to one complete beam scanning procedure.

Fig. 2 is a flowchart of a downlink synchronization method according to an embodiment of the present application, and as shown in fig. 2, the method according to the embodiment may include:

s101, the network equipment generates the synchronous signal blocks in the wireless frames according to the frame numbers of the wireless frames in the transmission period of the synchronous signal array set and the time index numbers of the synchronous signal blocks in the wireless frames.

In this embodiment, a transmission period of the synchronization signal array set is 20ms, one radio frame is 10ms, the transmission period may include two consecutive radio frames, frame numbers of the two radio frames are also consecutive, and frame numbers of the two radio frames are also odd-even numbers of each other, that is, if a frame number of one radio frame is an odd number, a frame number of the other radio frame is an even number; and if the frame number of one wireless frame is an even number, the frame number of the other wireless frame is an odd number. The synchronization signal array set comprises M synchronization signal blocks, and M is an integer greater than 0.

In the embodiment, a part of the synchronization signal blocks in the synchronization signal array is transmitted on one of two consecutive radio frames, and another part of the synchronization signal blocks is transmitted on the other radio frame. And the parity of the frame numbers of the two consecutive radio frames is different, the frame number of one radio frame is an odd number, and the frame number of the other radio frame is an even number.

In this embodiment, the information for indicating the time position of the synchronization signal block is carried by the synchronization signal block, and the time position of the synchronization signal block includes: the time position of the wireless frame where the synchronization signal block is located and the time position of the synchronization signal block in the wireless frame are indicated by the frame number of the wireless frame, and the time position of the synchronization signal block in the wireless frame is indicated by the time index number of the synchronization signal block.

Therefore, for one of the radio frames, taking the frame number of the radio frame as an odd frame number as an example, the radio frame includes a part of the synchronization signal blocks in the synchronization signal array, and for each of the part of the synchronization signal blocks in the synchronization signal array, the network device generates the synchronization signal block in the radio frame according to the frame number (for example, the odd frame number) of the radio frame and the time index number of the synchronization signal block, and based on this, may generate all the synchronization signal blocks in the radio frame with the odd frame number.

For another wireless frame, taking the frame event of the wireless frame as an even frame number as an example, the wireless frame includes another part of the synchronization signal blocks in the synchronization signal array, and for each synchronization signal block in the another part of the synchronization signal blocks in the synchronization signal array, the network device generates the synchronization signal block in the wireless frame according to the frame number (e.g., the even frame number) of the wireless frame and the time index number of the synchronization signal block, and based on this, can generate all the synchronization signal blocks in the wireless frame with the even frame number.

S102, the network equipment sends two continuous wireless frames to the terminal.

In this embodiment, the network device sends two consecutive wireless frames to the terminal, as shown in fig. 3. One of the radio frames includes a part of the synchronization signal blocks of the synchronization signal array, for example, M1 synchronization signal blocks, and each of the M1 synchronization signal blocks is generated by a frame number in the one radio frame and a time index of the synchronization signal block.

Another portion of the synchronization signal blocks, e.g., M2 synchronization signal blocks, comprising the synchronization signal array on another radio frame, each of the M2 synchronization signal blocks being generated from a frame number in the another radio frame and a time index of the synchronization signal block.

Further, M1+ M2 is M. In addition, M1 may be equal to M2, and M1 may not be equal to M2.

S103, the terminal determines the frame number of each wireless frame according to the synchronous signal block in each wireless frame.

In this embodiment, the terminal receives two consecutive wireless frames sent by the network device. The time position of the sync signal block in each radio frame is indicated by the sync signal block, and each sync signal block in this embodiment is generated according to the frame number of the radio frame where the sync signal block is located and the time index number of the sync signal block, and the sync signal block in this embodiment may indicate the frame number of the radio frame where the sync signal block is located.

Since the synchronization signal block in each radio frame can be used to indicate the frame number of the radio frame in which the synchronization signal block is located, the terminal determines the frame number of the radio frame according to the synchronization signal block in the radio frame. Based on this, the terminal may determine frame numbers of two consecutive radio frames.

S104, the terminal determines the time index number of each synchronous signal block according to each synchronous signal block.

In addition, since each synchronization signal block can indicate the time index of the synchronization signal block, the terminal can also determine the time index of the synchronization signal block according to the synchronization signal block. Based on this, the terminal can determine the time index numbers of the M synchronization signal blocks.

In this embodiment, the synchronization signal blocks in the synchronization signal array are sent on two consecutive radio frames, and the synchronization signal blocks in different radio frames are different, so that the frame numbers of different radio frames can be indicated by the synchronization signal blocks in different radio frames, and the time index numbers of different synchronization signal blocks can be indicated by the different synchronization signal blocks, thereby saving resources occupied for indicating the time positions of the synchronization signal blocks.

In one implementation, S101 may include S1011 and S1012.

S1011, aiming at each synchronous signal block in the M synchronous signal blocks, the network equipment generates an auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of the wireless frame where the synchronous signal block is located.

S1012, the network device generates the PBCH of the synchronization signal block according to the frame number of the wireless frame where the synchronization signal block is located and the time index number of the synchronization signal block.

In this embodiment, the synchronization signal block includes a primary synchronization signal, a secondary synchronization signal, and a PBCH, as shown in fig. 4. The network equipment generates the auxiliary synchronizing signal of the synchronizing signal block according to the parity of the frame number of the wireless frame where the synchronizing signal block is located, wherein the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd number of frames is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even number of frames. And the network equipment generates the PBCH of the synchronous signal block according to the frame number of the wireless frame where the synchronous signal block is positioned and the time index number of the synchronous signal block.

The parity of the frame number in the embodiment is indicated by different auxiliary synchronous signals of the synchronous signal block in the wireless frame, so that the parity of the frame number is not required to be indicated by carrying special indication information in the synchronous signal block, and the resources occupied by the frame number in the synchronous signal block are saved.

Accordingly, in one implementation, S103 may include S1031 and S1032.

And S1031, aiming at each wireless frame, the terminal determines the parity of the frame number of the wireless frame according to the auxiliary synchronous signal of the synchronous signal block in the wireless frame.

In this embodiment, the secondary synchronization signal in the radio frame with odd frame number is different from the secondary synchronization signal in the radio frame with even frame number, so the secondary synchronization signal of the synchronization signal block may indicate the parity of the frame number of the radio frame in which the synchronization signal block is located. If the auxiliary synchronization signal corresponds to an odd number, the frame number of the wireless frame where the synchronization signal block including the auxiliary synchronization signal is located is an odd number. If the auxiliary synchronization signal corresponds to an even number, the frame number of the wireless frame in which the synchronization signal block including the auxiliary synchronization signal is located is the even number.

S1032, the terminal determines the frame number of the wireless frame according to the parity of the frame number of the wireless frame and the PBCH of the synchronous signal block in the wireless frame.

In this embodiment, the PBCH of the synchronization signal block may also indicate the frame number of the radio frame in which the synchronization signal block is located, so that the terminal determines the frame number of the radio frame according to the parity of the frame number of the radio frame and the PBCH of the synchronization signal block in the radio frame. The parity of the frame number in the embodiment is indicated by different secondary synchronization signals of the synchronization signal block in the radio frame, and the parity of the frame number does not need to be indicated by PBCH, so that the resource occupied by the frame number in the PBCH is saved.

Optionally, on the basis of the foregoing embodiment, in a possible implementation manner of S1011, the network device determines, according to the parity of the frame number of the radio frame in which the synchronization signal block is located, the sequence of the secondary synchronization signal of the synchronization signal block; and generating an auxiliary synchronization signal of the synchronization signal block according to the sequence. And the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the even frame number. Accordingly, in a possible implementation manner of S1031, the terminal determines the parity of the frame number of the radio frame according to the sequence of the secondary synchronization signal of the synchronization signal block in the radio frame. The embodiment can indicate the parity of the frame number of the radio frame in which the synchronization signal block is located according to different sequences of the secondary synchronization signal of the synchronization signal block.

For example: the determined sequence of the secondary synchronization signal may be one of a plurality of sequences (e.g., two sequences), such that different sequences may respectively indicate the parity of the frame number. For example: the frame number corresponding to the first sequence is an odd number, the frame number corresponding to the second sequence is an even number, if the frame number of the wireless frame where the synchronization signal block is located is the odd number, the sequence of the auxiliary synchronization signal of the synchronization signal block is the first sequence, and if the frame number of the wireless frame where the synchronization signal block is located is the even number, the sequence of the auxiliary synchronization signal of the synchronization signal block is the second sequence.

On the basis of the above embodiments, the description is given by taking the frame number of the radio frame as an H-bit binary number, where H is an integer greater than 0; a 1-bit binary number of the H-bit binary numbers is indicated by a secondary synchronization signal of a synchronization signal block in the radio frame (e.g., a sequence indication of a secondary synchronization signal), and the 1-bit binary number may be, for example, the lowest 1 bit of the H-bit binary number, i.e., the 1-bit binary number may represent the parity of a frame number, such as: if the sequence of the auxiliary synchronization signal is the first sequence, the frame number is odd when the 1-bit binary number is 1, and if the sequence of the auxiliary synchronization signal is the second sequence, the frame number is even when the 1-bit binary number is 0. Therefore, the embodiment can save the resource of the synchronization signal block 1 bit occupied by the frame number. In addition, the other H-1 bit binary numbers of the H bit binary numbers are indicated by the PBCH of the synchronization signal block in the radio frame. In this way, the process of the terminal determining the frame number of the radio frame is as follows: the terminal determines 1 bit binary number of the H bit binary number according to an auxiliary synchronizing signal of a synchronizing signal block in a wireless frame; and determining other H-1 bit binary numbers in the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame.

Taking H equal to 10 as an example, the frame number is a 10-bit binary number, wherein a 1-bit binary number is indicated by the secondary synchronization signal of the synchronization signal block in the radio frame (e.g., the sequence indication of the secondary synchronization signal). In addition, a 9-bit binary number is indicated by PBCH of the synchronization signal block in the radio frame, for example: wherein a 7-bit binary number is carried by PBCH, where the 7-bit binary number can be indicated by PBCH display, and another 2-bit binary number is indicated by PBCH scrambling blind detection result, where the 2-bit binary number can be considered to be implicitly indicated by PBCH. The PBCH scrambled blind detection result may be one of four PBCH scrambled blind detection results, for example: the first PBCH scrambled blind detection result indicates 00, the second PBCH scrambled blind detection result indicates 01, the second PBCH scrambled blind detection result indicates 10, and the fourth PBCH scrambled blind detection result indicates 11.

In this way, the process of the terminal determining the frame number of the radio frame is as follows: determining 7-bit binary number in the other H-1-bit binary numbers according to PBCH of a synchronization signal block in a radio frame; and determining the other 2-bit binary number in the other H-1-bit binary numbers according to the PBCH scrambling blind detection result.

Optionally, in a possible implementation, the S104 may include S1041.

S1041, aiming at each synchronizing signal block in the M synchronizing signal blocks, the terminal determines the time index number of the synchronizing signal block according to the PBCH of the synchronizing signal block.

In this embodiment, the PBCH of the synchronization signal block may indicate the time index of the synchronization signal block, and therefore, the terminal may determine the time index of the synchronization signal block according to the PBCH of the synchronization signal block in the radio frame.

On the basis of the above embodiments, the time index of the synchronization signal block is K bits of binary number, where K is an integer greater than 0; the 1-bit binary number of the K-bit binary numbers is indicated by the secondary synchronization signal of the synchronization signal block (e.g., sequence indication of the secondary synchronization signal) or by parity of the frame number of the radio frame, and the 1-bit binary number may be, for example, the highest 1 bit of the K-bit binary number, which is not limited in this embodiment. For example: when the sequence is a first sequence, it means that the 1-bit binary number is an odd number, such as 1; when the sequence is a second sequence, it means that the 1-bit binary number is an even number, such as 0. Or, when the frame number of the radio frame is an odd number, the 1-bit binary number is represented as an odd number, and when the frame number of the radio frame is an even number, the 1-bit binary number is represented as an even number. Therefore, the embodiment can also save the resource that the time index number occupies 1 bit of the synchronization signal block. In addition, the other K-1 bit binary numbers of the K bit binary numbers are indicated by the PBCH of the synchronization signal block. In this way, the process of the terminal determining the time index of the synchronization signal block is as follows: determining 1-bit binary number in the K-bit binary numbers according to the auxiliary synchronization signal of the synchronization signal block or the parity of the frame number of the wireless frame where the synchronization signal block is located; and determining other K-1 bit binary numbers in the K bit binary numbers according to the PBCH of the synchronous signal block.

The following description will be made in detail with respect to the case where K is different.

In the first scenario, that is, the above-mentioned embodiment is applied to the scenario with the frequency greater than 6GHz, the synchronization signal array set includes 64 synchronization signal blocks, and the time indexes of the 64 synchronization signal blocks need to be distinguished by 6-bit binary numbers, so that K is 6.

In one implementation, when K is 6, the other 5-bit binary number is carried in the PBCH of the synchronization signal block, and the process of the terminal determining the other 5-bit binary number is as follows: determining other 5-bit binary numbers according to the PBCH of the synchronization signal block.

For example: the highest 1 bit of the 6-bit binary number may be indicated by the sequence of the secondary synchronization signal, e.g., indicating 1, and the lowest 5 bits of the 6-bit binary number may be directly carried in the PBCH, e.g., 00000 is carried in the PBCH, and the time index number obtained by the terminal is 100000 accordingly.

In another implementation, when K is 6, 4 bits of the other 5-bit binary numbers are carried in the PBCH of the synchronization signal block, and the other 1-bit binary number is indicated by the CRC mask blind detection result of the PBCH of the synchronization signal block, which may be one of two different results. The process of the terminal determining other 5-bit binary numbers is as follows: and determining 4-bit binary numbers in other 5-bit binary numbers according to the PBCH of the synchronization signal block, and determining the other 1-bit binary numbers in other 5-bit binary numbers according to the CRC mask blind detection result of the PBCH.

The two different results are, for example, a first CRC mask blind detection result and a second CRC mask blind detection result, respectively, where the first CRC mask blind detection result indicates that a 1-bit binary number is 0, and the second CRC mask blind detection result indicates that a 1-bit binary number is 1. For example: the highest 1 bit of the 6 bit binary number may be indicated by the sequence of the secondary synchronization signal, e.g., indicating 1. For example, the CRC mask blind detection result may indicate the lowest 1 bit in the other 5-bit binary numbers, and indicate 1 if the CRC mask blind detection result of the synchronization signal block is the second CRC mask blind detection result. And the other 4 bits of the other 5-bit binary numbers can be directly carried in PBCH, for example, 0000 is carried in PBCH, and the time index obtained by the terminal is 100001.

In another implementation, when K is 6, a 3-bit binary number of the other 5-bit binary numbers is carried in the PBCH of the synchronization signal block, and the other 2-bit binary number is indicated by a CRC mask blind detection result of the PBCH of the synchronization signal block, which may be one of four different results. The process of the terminal determining other 5-bit binary numbers is as follows: and determining 3-bit binary numbers in other 5-bit binary numbers according to the PBCH of the synchronization signal block, and determining the other 2-bit binary numbers in other 5-bit binary numbers according to the CRC mask blind detection result of the PBCH.

The four different results are, for example, a first CRC mask blind detection result, a second CRC mask blind detection result, a third CRC mask blind detection result, and a fourth CRC mask blind detection result, respectively, where the 2-bit binary number indicated by the first CRC mask blind detection result is 00, the 2-bit binary number indicated by the second CRC mask blind detection result is 01, the 2-bit binary number indicated by the third CRC mask blind detection result is 10, and the 2-bit binary number indicated by the fourth CRC mask blind detection result is 11. For example: the highest 1 bit of the 6 bit binary number may be indicated by the sequence of the secondary synchronization signal, e.g., indicating 1. For example, the CRC mask blind detection result may indicate the lowest 2 bits of the other 5-bit binary numbers, and indicate 11 if the CRC mask blind detection result of the PBCH of the synchronization signal block is the fourth CRC mask blind detection result. And the other 3 bits of the other 5-bit binary numbers can be directly carried in the PBCH, for example, the PBCH carries 000 bits, and the time index number obtained by the terminal is 100011.

In the second scenario, that is, the above embodiment is applied to the scenario with the frequency of 3-6GHz, the synchronization signal array set may include 8 synchronization signal blocks, and the time indexes of the 8 synchronization signal blocks need to be distinguished by 3-bit binary numbers, so that K is 3.

When K is 3, the other 2-bit binary number is indicated by the CRC mask blind detection result in the PBCH of the synchronization signal block; the CRC mask blind detection result is one of four different results. The process of the terminal determining other 2-bit binary numbers is as follows: and the terminal determines other 2-bit binary numbers according to the CRC mask blind detection result in the PBCH of the synchronization signal block.

The four different results are, for example, a first CRC mask blind detection result, a second CRC mask blind detection result, a third CRC mask blind detection result, and a fourth CRC mask blind detection result, respectively, where the 2-bit binary number indicated by the first CRC mask blind detection result is 00, the 2-bit binary number indicated by the second CRC mask blind detection result is 01, the 2-bit binary number indicated by the third CRC mask blind detection result is 10, and the 2-bit binary number indicated by the fourth CRC mask blind detection result is 11. For example: the highest 1 bit of the 3-bit binary number may be indicated by the sequence of the secondary synchronization signal, e.g., indicating 1. For example, the CRC mask blind detection result may indicate other 2-bit binary numbers, and if the CRC mask blind detection result of the PBCH of the synchronization signal block is the first CRC mask blind detection result, indicating 00, the time index number obtained by the terminal is 100 accordingly.

In the third scenario, that is, the above embodiment is applied to the scenario that the frequency is 3-6GHz and the synchronization signal array set includes 4 synchronization signal blocks; alternatively, the above embodiment is applied to a scenario where the frequency is less than 3GHz and the synchronization signal array set includes 4 synchronization signal blocks, time indexes of the 4 synchronization signal blocks need to be distinguished by 2-bit binary numbers, and therefore K is 2.

When K is 2, the other 1-bit binary number is indicated by the CRC mask blind detection result in the PBCH of the synchronization signal block, which is one of two different results. The process of the terminal determining other 1-bit binary numbers is as follows: and the terminal determines other 1-bit binary numbers according to the CRC mask blind detection result of the PBCH of the synchronization signal block.

The two different results are, for example, a first CRC mask blind detection result and a second CRC mask blind detection result, respectively, where the first CRC mask blind detection result indicates that a 1-bit binary number is 0, and the second CRC mask blind detection result indicates that a 1-bit binary number is 1. For example: the highest 1 bit of the 2-bit binary number may be indicated by the sequence of the secondary synchronization signal, e.g., indicating 1. For example, the CRC mask blind detection result may indicate other 1-bit binary numbers, and if the CRC mask blind detection result of the PBCH of the synchronization signal block is the first CRC mask blind detection result, 0 is indicated. The terminal obtains a time index number of 10 accordingly.

In summary, part of bit information of the time index of the synchronization signal block does not need to be directly carried by the PBCH, so that the resource of the synchronization signal block occupied by the time index is saved.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application, and as shown in fig. 5, the network device according to the embodiment may include: a processing module 11 and a sending module 12.

A processing module 11, configured to generate a synchronization signal block in each radio frame according to a frame number of each radio frame in a transmission period of a synchronization signal array set and a time index of a synchronization signal block in each radio frame; the transmission period comprises two continuous wireless frames; the synchronization signal array set comprises M synchronization signal blocks; m is an integer greater than 0; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame.

A sending module 12, configured to send two consecutive radio frames to a terminal, where one radio frame includes a part of the synchronization signal blocks in the synchronization signal array, and the other radio frame includes another part of the synchronization signal blocks in the synchronization signal array.

Optionally, the processing module 11 is specifically configured to: aiming at each synchronous signal block in the M synchronous signal blocks, generating an auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of a wireless frame where the synchronous signal block is positioned; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number; and generating the PBCH of the synchronous signal block according to the frame number of the wireless frame where the synchronous signal block is located and the time index number of the synchronous signal block.

Optionally, the processing module 11 is specifically configured to: determining the sequence of the auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of the wireless frame where the synchronous signal block is located; the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number; and generating an auxiliary synchronization signal of the synchronization signal block according to the sequence.

Optionally, the frame number of the radio frame is an H-bit binary number; the 1 bit binary number of the H bit binary numbers is indicated by the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame; h is an integer greater than 0. Wherein other H-1 bit binary numbers of the H bit binary numbers are indicated by PBCH of a synchronization signal block in the radio frame.

Optionally, H is 10; wherein 7-bit binary numbers of the other H-1 bit binary numbers are carried by the PBCH; the other 2-bit binary number of the other H-1-bit binary numbers is indicated by the PBCH scrambled blind detection result.

Optionally, the time index number of the synchronization signal block is a K-bit binary number; k is an integer greater than 0. Wherein a 1-bit binary number of the K-bit binary numbers is indicated by a secondary synchronization signal of the synchronization signal block or a parity of a frame number of the radio frame. The other K-1 bit binary numbers of the K bit binary numbers are indicated by the PBCH of the synchronization signal block.

Optionally, when K is equal to 6, the other K-1 bit binary numbers are carried in the PBCH.

Optionally, when K is equal to 6, 4-bit binary numbers of the other K-1-bit binary numbers are carried in the PBCH; and the other 1-bit binary number of the other K-1-bit binary numbers is indicated by a CRC mask blind check result of the PBCH; the CRC mask blind test result is one of two different results.

Optionally, when K is equal to 6, 3-bit binary numbers of the other K-1-bit binary numbers are carried in the PBCH; and the other 2-bit binary number of the other K-1 bit binary numbers is indicated by a CRC mask blind check result of the PBCH; the CRC mask blind detection result is one of four different results.

Optionally, when K is equal to 3, the other K-1 bit binary numbers are indicated by a CRC mask blind detection result of the PBCH; the CRC mask blind detection result is one of four different results.

Optionally, when K is equal to 2, the other K-1 bit binary numbers are indicated by a CRC mask blind detection result of the PBCH, and the CRC mask blind detection result is one of two different results.

The network device described above in this embodiment may be configured to execute the technical solutions executed by the network device in the above method embodiments, and the implementation principles and technical effects are similar, and are not described herein again.

Fig. 6 is a schematic structural diagram of a network device provided in the second embodiment of the present application, and as shown in fig. 6, the network device of this embodiment may include: a processor 21 and a transceiver 22. The processor 21 is communicatively coupled to a transceiver 22.

In hardware implementation, the above transmitting module 12 may be the transceiver 22 in the present embodiment. Alternatively, the transceiver 22 includes a transmitter and a receiver, and the above transmitting module 12 may be a transmitter in the transceiver 22. The above processing module 11 may be embedded in the processor 21 of the network device or independent of the network device in a hardware form.

The transceiver 22 may include necessary radio frequency communication devices such as mixers. The processor 21 may include at least one of a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Microcontroller (MCU), an Application Specific Integrated Circuit (ASIC), or a Field Programmable Gate Array (FPGA).

Optionally, the network device of this embodiment may further include a memory 23, where the memory 23 is configured to store program instructions, and the processor 21 is configured to call the program instructions in the memory 23 to execute the above-mentioned scheme.

The program instructions may be implemented in the form of software functional units and may be sold or used as a stand-alone product, and the memory 23 may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solutions of the present application may be embodied in the form of a software product, which includes several instructions to enable a computer device, specifically, the processor 21, to execute all or part of the steps of the network device in the embodiments of the present application. And the aforementioned computer-readable storage media comprise: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The network device described above in this embodiment may be configured to execute the technical solutions of the network device in the foregoing method embodiments of the present application, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application, and as shown in fig. 7, the terminal according to the embodiment may include: a receiving module 31 and a determining module 32.

A receiving module 31, configured to receive two consecutive wireless frames sent by a network device, where the two consecutive wireless frames are two consecutive wireless frames in a transmission period of a synchronization signal array, where the synchronization signal array includes M synchronization signal blocks; m is an integer greater than 0; one of the radio frames includes a part of the synchronous signal blocks in the synchronous signal array; and the other wireless frame comprises the other part of the synchronous signal blocks in the synchronous signal array.

A determining module 32, configured to determine a frame number of each radio frame according to a synchronization signal block in each radio frame; determining a time index number of each synchronous signal block according to each synchronous signal block; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame.

Optionally, the determining module 32 is specifically configured to: for each wireless frame, determining the parity of the frame number of the wireless frame according to the auxiliary synchronous signal of the synchronous signal block in the wireless frame; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number; and determining the frame number of the wireless frame according to the parity of the frame number of the wireless frame and the PBCH of the synchronous signal block in the wireless frame.

Optionally, the determining module 32 is specifically configured to: determining the parity of the frame number of the wireless frame according to the sequence of the auxiliary synchronous signal of the synchronous signal block in the wireless frame; and the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the even frame number.

Optionally, the frame number of the radio frame is an H-bit binary number; h is an integer greater than 0; the determining module 32 is specifically configured to: determining 1 bit binary number of the H bit binary number according to an auxiliary synchronizing signal of a synchronizing signal block in the wireless frame; and determining other H-1 bit binary numbers of the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame.

Optionally, H is 10; the determining module 32 is specifically configured to: determining 7-bit binary numbers in the other H-1-bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame; and determining the other 2-bit binary number in the other H-1-bit binary numbers according to the PBCH scrambling blind detection result of the synchronization signal block in the wireless frame.

Optionally, the determining module 32 is specifically configured to: and aiming at each synchronous signal block in the M synchronous signal blocks, determining the time index number of the synchronous signal block according to the PBCH of the synchronous signal block.

Optionally, the time index number of the synchronization signal block is a K-bit binary number; k is an integer greater than 0. The determining module 32 is specifically configured to: determining 1-bit binary number in the K-bit binary numbers according to the auxiliary synchronization signal of the synchronization signal block or the parity of the frame number of the wireless frame where the synchronization signal block is located; and determining other K-1 bit binary numbers in the K bit binary numbers according to the PBCH of the synchronous signal block.

Optionally, the determining module 32 is specifically configured to: and when K is equal to 6, determining the other K-1 bit binary numbers according to the PBCH of the synchronous signal block.

Optionally, the determining module 32 is specifically configured to: when K is equal to 6, determining 4-bit binary numbers in the other K-1 bit binary numbers according to PBCH of the synchronization signal block, and determining the other 1-bit binary numbers in the other K-1 bit binary numbers according to CRC mask blind detection results of the PBCH; the CRC mask blind test result is one of two different results.

Optionally, the determining module 32 is specifically configured to: when K is equal to 6, determining 3-bit binary number in the other K-1 bit binary numbers according to PBCH of the synchronization signal block, and determining the other 2-bit binary number in the other K-1 bit binary numbers according to CRC mask blind detection results of the PBCH; the CRC mask blind detection result is one of four different results.

Optionally, the determining module 32 is specifically configured to: when K is equal to 3, determining the other K-1 bit binary numbers according to a CRC mask blind detection result in the PBCH of the synchronization signal block; the CRC mask blind detection result is one of four different results.

Optionally, the determining module 32 is specifically configured to: and when K is equal to 2, determining the other K-1 bit binary numbers according to a CRC mask blind detection result in the PBCH of the synchronization signal block, wherein the CRC mask blind detection result is one of two different results.

The terminal described in this embodiment may be configured to execute the technical solutions executed by the terminals in the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 8 is a schematic structural diagram of a terminal according to a second embodiment of the present application, and as shown in fig. 8, the terminal according to the present embodiment may include: a processor 41 and a transceiver 42. The processor 41 is communicatively coupled to a transceiver 42.

In hardware implementation, the above receiving module 31 may be the transceiver 42 in the present embodiment. Alternatively, the transceiver 42 includes a transmitter and a receiver, and the above receiving module 31 may be a receiver in the transceiver 42. The above determination module 32 may be embedded in the processor 21 of the network device or independent of the network device in a hardware manner.

The transceiver 42 may include necessary radio frequency communication devices such as mixers. The processor 41 may comprise at least one of a CPU, DSP, MCU, ASIC or FPGA.

Optionally, the terminal of this embodiment may further include a memory 43, where the memory 43 is used to store program instructions, and the processor 41 is used to call the program instructions in the memory 43 to execute the above-mentioned scheme.

The program instructions may be implemented in the form of software functional units and may be sold or used as a stand-alone product, and the memory 43 may be any form of computer-readable storage medium. Based on such understanding, all or part of the technical solutions of the present application may be embodied in the form of a software product, which includes several instructions to enable a computer device, specifically, the processor 41, to execute all or part of the steps of the terminal in the embodiments of the present application. And the aforementioned computer-readable storage media comprise: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The terminal described above in this embodiment may be configured to execute the technical solutions of the terminals in the above method embodiments of the present application, and the implementation principles and technical effects are similar, which are not described herein again.

Claims

1. A downlink synchronization method is characterized by comprising the following steps:

the network equipment generates synchronous signal blocks in each wireless frame according to the frame number of each wireless frame in the transmission period of the synchronous signal array set and the time index number of the synchronous signal block in each wireless frame; the transmission period comprises two continuous wireless frames; the synchronization signal array set comprises M synchronization signal blocks; m is an integer greater than 0; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame;

2. The method of claim 1, wherein the network device generates the block of synchronization signals in each radio frame according to a frame number of each radio frame in a transmission period of the synchronization signal array and a time index of the block of synchronization signals in each radio frame, comprising:

and the network equipment generates a physical broadcast channel PBCH of the synchronous signal block according to the frame number of the wireless frame where the synchronous signal block is located and the time index number of the synchronous signal block.

3. The method of claim 2, wherein the network device generates the secondary synchronization signal of the synchronization signal block according to the parity of the frame number of the radio frame in which the synchronization signal block is located, and comprises:

4. The method of claim 2 or 3, wherein the frame number of the radio frame is an H-bit binary number; the 1 bit binary number of the H bit binary numbers is indicated by the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame; h is an integer greater than 0;

5. The method of claim 4, wherein H is 10; wherein 7-bit binary numbers of the other H-1 bit binary numbers are carried by the PBCH; the other 2-bit binary number of the other H-1-bit binary numbers is indicated by the PBCH scrambled blind detection result.

6. The method of claim 2, wherein the time-index number of the synchronization signal block is a K-bit binary number; k is an integer greater than 0;

wherein a 1-bit binary number of the K-bit binary numbers is indicated by a secondary synchronization signal of the synchronization signal block or a parity of a frame number of the radio frame;

7. The method of claim 6, wherein when K equals 6, the other K-1 bit binary numbers are carried in the PBCH; alternatively, the first and second electrodes may be,

when K equals 6, 4-bit binary numbers of the other K-1 bit binary numbers are carried in the PBCH; and the other 1-bit binary number of the other K-1-bit binary numbers is indicated by a Cyclic Redundancy Check (CRC) mask blind detection result of the PBCH; the CRC mask blind detection result is one of two different results; alternatively, the first and second electrodes may be,

when K equals 6, 3 bits binary number of the other K-1 bits binary number is carried in the PBCH; and the other 2-bit binary number of the other K-1 bit binary numbers is indicated by a CRC mask blind check result of the PBCH; the CRC mask blind detection result is one of four different results; alternatively, the first and second electrodes may be,

when K is equal to 3, the other K-1 bit binary numbers are indicated by a CRC mask blind detection result of the PBCH; the CRC mask blind detection result is one of four different results; alternatively, the first and second electrodes may be,

when K is equal to 2, the other K-1 bit binary numbers are indicated by a CRC mask blind detection result of the PBCH, and the CRC mask blind detection result is one of two different results.

8. A downlink synchronization method is characterized by comprising the following steps:

a terminal receives two continuous wireless frames sent by network equipment, wherein the two continuous wireless frames are two continuous wireless frames in a synchronous signal array transmission period, and the synchronous signal array comprises M synchronous signal blocks; m is an integer greater than 0; one of the radio frames includes a part of the synchronous signal blocks in the synchronous signal array; another part of the synchronous signal blocks in the synchronous signal array are included in another wireless frame;

the terminal determines the frame number of each wireless frame according to the synchronous signal block in each wireless frame;

the terminal determines the time index number of each synchronous signal block according to each synchronous signal block; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame.

9. The method of claim 8, wherein the determining, by the terminal, the frame number of each of the radio frames according to the synchronization signal block in each of the radio frames comprises:

aiming at each wireless frame, the terminal determines the parity of the frame number of the wireless frame according to the auxiliary synchronous signal of the synchronous signal block in the wireless frame; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number;

and the terminal determines the frame number of the wireless frame according to the parity of the frame number of the wireless frame and the physical broadcast channel PBCH of the synchronous signal block in the wireless frame.

10. The method of claim 9, wherein the terminal determines the parity of the frame number of the radio frame according to the secondary synchronization signal of the synchronization signal block in the radio frame, comprising:

the terminal determines the parity of the frame number of the wireless frame according to the sequence of the auxiliary synchronous signal of the synchronous signal block in the wireless frame; and the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the even frame number.

11. The method of claim 9 or 10, wherein the frame number of the radio frame is an H-bit binary number; h is an integer greater than 0; the terminal determines the frame number of the wireless frame according to the synchronous signal block in the wireless frame, and the method comprises the following steps:

the terminal determines 1 bit binary number of the H bit binary number according to an auxiliary synchronizing signal of a synchronizing signal block in the wireless frame;

and the terminal determines other H-1 bit binary numbers of the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame.

12. The method of claim 11, wherein H is 10; the terminal determines other H-1 bit binary numbers of the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame, and the method comprises the following steps:

the terminal determines 7-bit binary numbers in the other H-1-bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame;

13. The method of claim 8, wherein the terminal determines a time index for each of the synchronization signal blocks according to each of the synchronization signal blocks, comprising:

and aiming at each synchronous signal block in the M synchronous signal blocks, the terminal determines the time index number of the synchronous signal block according to the PBCH of the synchronous signal block.

14. The method of claim 13, wherein the time-index number of the synchronization signal block is a K-bit binary number; k is an integer greater than 0;

the terminal determines the time index number of the synchronization signal block according to the PBCH of the synchronization signal block, and the determination comprises the following steps:

the terminal determines 1 bit binary number in the K bit binary numbers according to the auxiliary synchronous signal of the synchronous signal block or the parity of the frame number of the wireless frame where the synchronous signal block is located;

and the terminal determines other K-1 bit binary numbers in the K bit binary numbers according to the PBCH of the synchronization signal block.

15. The method of claim 14, wherein the terminal determines other K-1 binary numbers of the K binary numbers according to a PBCH of the synchronization signal block, comprising:

when K is equal to 6, the terminal determines the other K-1 bit binary numbers according to the PBCH of the synchronization signal block; alternatively, the first and second electrodes may be,

when K is equal to 6, the terminal determines 4-bit binary numbers in the other K-1-bit binary numbers according to the PBCH of the synchronization signal block, and determines the other 1-bit binary numbers in the other K-1-bit binary numbers according to the CRC mask blind detection result of the PBCH; the CRC mask blind detection result is one of two different results; alternatively, the first and second electrodes may be,

when K is equal to 6, the terminal determines 3-bit binary numbers in the other K-1 bit binary numbers according to the PBCH of the synchronization signal block, and determines the other 2-bit binary numbers in the other K-1 bit binary numbers according to the CRC mask blind detection result of the PBCH; the CRC mask blind detection result is one of four different results; alternatively, the first and second electrodes may be,

when K is equal to 3, the terminal determines the other K-1 bit binary numbers according to the CRC mask blind detection result in the PBCH of the synchronization signal block; the CRC mask blind detection result is one of four different results; alternatively, the first and second electrodes may be,

16. A network device, comprising:

the processing module is used for generating the synchronous signal blocks in each wireless frame according to the frame number of each wireless frame in the transmission period of the synchronous signal array set and the time index number of the synchronous signal block in each wireless frame; the transmission period comprises two continuous wireless frames; the synchronization signal array set comprises M synchronization signal blocks; m is an integer greater than 0; the time index number is used for indicating the time position of the synchronous signal block in the wireless frame;

and the sending module is used for sending two continuous wireless frames to a terminal, wherein one wireless frame comprises a part of synchronous signal blocks in the synchronous signal array, and the other wireless frame comprises the other part of synchronous signal blocks in the synchronous signal array.

17. The network device of claim 16, wherein the processing module is specifically configured to: aiming at each synchronous signal block in the M synchronous signal blocks, generating an auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of a wireless frame where the synchronous signal block is positioned; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number;

and generating a physical broadcast channel PBCH of the synchronous signal block according to the frame number of the wireless frame where the synchronous signal block is located and the time index number of the synchronous signal block.

18. The network device of claim 17, wherein the processing module is specifically configured to: determining the sequence of the auxiliary synchronous signal of the synchronous signal block according to the parity of the frame number of the wireless frame where the synchronous signal block is located; the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number; and generating an auxiliary synchronization signal of the synchronization signal block according to the sequence.

19. The network device of claim 17 or 18, wherein the frame number of the radio frame is an H-bit binary number; the 1 bit binary number of the H bit binary numbers is indicated by the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame; h is an integer greater than 0;

20. The network device of claim 19, wherein H is 10; wherein 7-bit binary numbers of the other H-1 bit binary numbers are carried by the PBCH; the other 2-bit binary number of the other H-1-bit binary numbers is indicated by the PBCH scrambled blind detection result.

21. The network device of claim 17, wherein the time-indexed number of the synchronization signal block is a K-bit binary number; k is an integer greater than 0;

22. The network device of claim 21, wherein the other K-1 bit binary numbers are carried in the PBCH when K equals 6; alternatively, the first and second electrodes may be,

23. A terminal, comprising:

the wireless network equipment comprises a receiving module, a transmitting module and a receiving module, wherein the receiving module is used for receiving two continuous wireless frames sent by network equipment, and the two continuous wireless frames are two continuous wireless frames in a synchronous signal array transmission period, and the synchronous signal array comprises M synchronous signal blocks; m is an integer greater than 0; one of the radio frames includes a part of the synchronous signal blocks in the synchronous signal array; another part of the synchronous signal blocks in the synchronous signal array are included in another wireless frame;

24. The terminal according to claim 23, wherein the determining module is specifically configured to: for each wireless frame, determining the parity of the frame number of the wireless frame according to the auxiliary synchronous signal of the synchronous signal block in the wireless frame; the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with odd frame number is different from the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with even frame number; and determining the frame number of the wireless frame according to the parity of the frame number of the wireless frame and the physical broadcast channel PBCH of the synchronous signal block in the wireless frame.

25. The terminal according to claim 24, wherein the determining module is specifically configured to: determining the parity of the frame number of the wireless frame according to the sequence of the auxiliary synchronous signal of the synchronous signal block in the wireless frame; and the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the odd frame number is different from the sequence of the auxiliary synchronizing signal of the synchronizing signal block in the wireless frame with the even frame number.

26. The terminal of claim 24 or 25, wherein the frame number of the radio frame is an H-bit binary number; h is an integer greater than 0; the determining module is specifically configured to: determining 1 bit binary number of the H bit binary number according to an auxiliary synchronizing signal of a synchronizing signal block in the wireless frame; and determining other H-1 bit binary numbers of the H bit binary numbers according to the PBCH of the synchronization signal block in the wireless frame.

27. The terminal of claim 26, wherein H is 10; the determining module is specifically configured to: determining that 7-bit binary numbers in the other H-1-bit binary numbers are carried by PBCH according to PBCH of a synchronization signal block in the radio frame; and determining the other 2-bit binary number in the other H-1-bit binary numbers according to the PBCH scrambling blind detection result of the synchronization signal block in the wireless frame.

28. The terminal according to claim 23, wherein the determining module is specifically configured to: and aiming at each synchronous signal block in the M synchronous signal blocks, determining the time index number of the synchronous signal block according to the PBCH of the synchronous signal block.

29. The terminal of claim 28, wherein the time index number of the synchronization signal block is K bits of binary number; k is an integer greater than 0;

30. The terminal according to claim 29, wherein the determining module is specifically configured to:

when K is equal to 6, determining the other K-1 bit binary numbers according to the PBCH of the synchronous signal block; alternatively, the first and second electrodes may be,

when K is equal to 6, determining 4-bit binary numbers in the other K-1-bit binary numbers according to PBCH of the synchronization signal block, and determining the other 1-bit binary numbers in the other K-1-bit binary numbers according to a Cyclic Redundancy Check (CRC) mask blind detection result of the PBCH; the CRC mask blind detection result is one of two different results; alternatively, the first and second electrodes may be,

when K is equal to 6, determining 3-bit binary number in the other K-1 bit binary numbers according to PBCH of the synchronization signal block, and determining the other 2-bit binary number in the other K-1 bit binary numbers according to CRC mask blind detection results of the PBCH; the CRC mask blind detection result is one of four different results; alternatively, the first and second electrodes may be,

when K is equal to 3, determining the other K-1 bit binary numbers according to a CRC mask blind detection result in the PBCH of the synchronization signal block; the CRC mask blind detection result is one of four different results; alternatively, the first and second electrodes may be,

and when K is equal to 2, determining the other K-1 bit binary numbers according to a CRC mask blind detection result in the PBCH of the synchronization signal block, wherein the CRC mask blind detection result is one of two different results.