WO2018120833A1 - 一种同步接入信号块的传输方法、网络侧设备和用户终端 - Google Patents
一种同步接入信号块的传输方法、网络侧设备和用户终端 Download PDFInfo
- Publication number
- WO2018120833A1 WO2018120833A1 PCT/CN2017/095248 CN2017095248W WO2018120833A1 WO 2018120833 A1 WO2018120833 A1 WO 2018120833A1 CN 2017095248 W CN2017095248 W CN 2017095248W WO 2018120833 A1 WO2018120833 A1 WO 2018120833A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- access signal
- synchronization
- synchronization access
- time resource
- signal block
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
Definitions
- the present disclosure relates to the field of communications technologies, and in particular, to a method for transmitting a synchronization access signal block, a network side device, and a user terminal.
- the millimeter wave band (6-100 GHz) has attracted much attention due to its rich spectrum resources and wide transmission bandwidth, and has become an indispensable technology for future communication system (for example, 5G) standards.
- 5G future communication system
- one of the outstanding shortcomings of the millimeter wave technology is that the path loss is very large, and as the frequency is higher, the path loss is larger, which results in a narrow coverage area of the narrow beam in the millimeter wave band.
- the base station repeatedly transmits the same synchronous access signal by using different beams at different times, and different beams cover different areas, thereby implementing a broadcast function to achieve extended coverage.
- the synchronization access signals are sequentially transmitted only in chronological order, which results in poor accuracy of the time synchronization of the user terminal.
- the embodiments of the present disclosure provide a method for transmitting a synchronization access signal block, a network side device, and a user terminal, to solve the problem that the accuracy of time synchronization is relatively poor.
- an embodiment of the present disclosure provides a method for transmitting a synchronization access signal block, including:
- each synchronization access signal block includes a primary synchronization signal (PSS, Primary Synchronization Signal) and a secondary synchronization signal (SSS, Secondary Synchronization) Signal) and Physical Broadcast Channel (PBCH) signals
- PSS Primary Synchronization Signal
- SSS Secondary Synchronization
- PBCH Physical Broadcast Channel
- each PBCH signal including main information a MIB (Master Information Block)
- MIB Master Information Block
- the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set; using different beams, Different synchronization access signal blocks in the set of synchronization access signals are transmitted on different time resources, respectively.
- an embodiment of the present disclosure provides a method for transmitting a synchronization access signal block, including:
- each synchronization access signal block in the synchronization access signal set includes PSS, SSS, and PBCH signals, each PBCH signal Including the MIB, the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set;
- the sequence number information is obtained from the demodulated MIB, and the sequence number information is used for time synchronization.
- an embodiment of the present disclosure provides a network side device, including:
- An acquiring module configured to acquire a synchronization access signal set, where the synchronization access signal set includes multiple synchronization access signal blocks, each synchronization access signal block includes a PSS, an SSS, and a PBCH signal, and each PBCH signal includes an MIB,
- the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block where the MIB is located in the synchronization access signal set;
- a sending module configured to send different synchronization access signal blocks in the synchronization access signal set on different time resources by using different beams.
- an embodiment of the present disclosure provides a user terminal, including:
- a search module configured to search for a synchronization access signal block on a time resource, where the synchronization access signal block includes PSS, SSS, and PBCH signals, each PBCH signal includes a primary information block MIB, and the MIB includes sequence number information, The sequence number information is used to indicate the sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set;
- a demodulation module configured to demodulate the PBCH signal to obtain a MIB
- a synchronization module configured to perform time synchronization using the serial number information included in the MIB.
- an embodiment of the present disclosure provides a network side device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where The step of implementing the method of transmitting the synchronization access signal block as described in the first aspect when the processor executes the computer program.
- an embodiment of the present disclosure provides a user terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the computer program The step of transmitting the method of synchronizing access signal blocks as described in the second aspect.
- an embodiment of the present disclosure provides a transmission system for synchronizing access signal blocks, including the network side device according to the third aspect and the user terminal according to the fourth aspect.
- an embodiment of the present disclosure provides a transmission system for synchronizing access signal blocks, including the network side device according to the fifth aspect and the user terminal according to the sixth aspect.
- a synchronization access signal set is obtained, the synchronization access signal set includes a plurality of synchronization access signal blocks, and each synchronization access signal block includes a PSS, an SSS, and a PBCH signal, and each PBCH
- the signal includes an MIB, and the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set; using different beams, respectively, at different times Different synchronization access signal blocks in the set of synchronization access signals are transmitted on the resource.
- the user terminal can use the serial number information of the synchronous access signal to perform time synchronization, thereby improving the accuracy of time synchronization.
- FIG. 1 is a structural diagram of a transmission system of a synchronous access signal group to which an embodiment of the present disclosure is applicable;
- FIG. 2 is a flowchart of a method for transmitting a synchronization access signal block according to some embodiments of the present disclosure
- FIG. 3 is another method for transmitting a synchronization access signal block according to some embodiments of the present disclosure.
- FIG. 4 is a schematic diagram of transmissions in a synchronization access signal block provided by the embodiment of FIG. 3 of the present disclosure
- FIG. 5 is a second schematic diagram of transmission in a synchronization access signal block provided by the embodiment of FIG. 3 of the present disclosure
- FIG. 6 is a third schematic diagram of transmission in a synchronization access signal block provided by the embodiment of FIG. 3 of the present disclosure.
- FIG. 7 is a fourth schematic diagram of transmission in a synchronization access signal block provided by the embodiment of FIG. 3 of the present disclosure.
- FIG. 8 is a fifth schematic diagram of transmission in a synchronization access signal block provided by the embodiment of FIG. 3 of the present disclosure.
- FIG. 9 is a sixth schematic diagram of transmission in a synchronization access signal block provided by the embodiment of FIG. 3 of the present disclosure.
- FIG. 10 is a flowchart of a method for transmitting a synchronization access signal group according to some embodiments of the present disclosure
- FIG. 11 is a structural diagram of a network side device according to some embodiments of the present disclosure.
- FIG. 12 is a second structural diagram of a network side device according to some embodiments of the present disclosure.
- FIG. 13 is a structural diagram of a user terminal provided by some embodiments of the present disclosure.
- FIG. 14 is a second structural diagram of a user terminal according to some embodiments of the present disclosure.
- 15 is a structural diagram of a network side device provided by some embodiments of the present disclosure.
- 16 is a structural diagram of a user terminal provided by some embodiments of the present disclosure.
- FIG. 1 is a synchronous access signal block applicable to some embodiments of the present disclosure.
- the structure of the transmission system is as shown in FIG. 1.
- the transmission system includes a user terminal 11 and a network side device 12, wherein the user terminal 11 can be a User Equipment (UE), for example, a mobile phone or a tablet (Tablet Personal) Terminal) devices such as Laptop, Laptop, Personal Digital Assistant (PDA), Mobile Internet Device (MID), or Wearable Device, need to be explained
- the specific type of the user terminal 11 is not limited in the embodiment of the present disclosure.
- the user terminal 11 can establish communication with the network side device 12, wherein the network in the figure can indicate that the user terminal 11 and the network side device 12 establish wireless communication, and the network side device 12 can be a Transmission Reception Point (TRP).
- TRP Transmission Reception Point
- it may be a base station, and the base station may be a macro station, such as an LTE eNB, a 5G NR NB, or the like.
- the network side device 12 may be
- network side device 12 is not limited in the embodiment of the present disclosure.
- the specific functions of the user terminal 11 and the network side device 12 will be specifically described by using the following embodiments.
- FIG. 2 is a flowchart of a method for transmitting a synchronization access signal block according to some embodiments of the present disclosure. As shown in FIG. 2, the method includes the following steps:
- Step 201 Acquire a synchronization access signal set, where the synchronization access signal set includes multiple synchronization access signal blocks, each synchronization access signal block includes a PSS, an SSS, and a PBCH signal, and each PBCH signal includes an MIB, where The MIB includes sequence number information, and the sequence number information is used to indicate the sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set.
- the number of synchronization access signal blocks (SS blocks) included in the SS burst may be less than or equal to the number of subframes included in one frame, and may also be greater than one.
- each synchronization access signal block in step 201 can be understood as any synchronization access signal block in the synchronization access signal set, that is, any synchronous access in the embodiment of the present disclosure.
- the signal blocks each include a PSS, SSS, and PBCH signal, and each PBCH signal includes an MIB, and the MIB within each synchronization access signal block includes a sequence number of the synchronization access signal block in the synchronization access signal set.
- the foregoing acquiring the synchronization access signal set may be generated by the network side device, or the network side device receiving the other device, which is not limited by the embodiment of the present disclosure.
- Step 202 Send different synchronization access signal blocks in the synchronization access signal set on different time resources by using different beams.
- the different synchronization access signal blocks in the synchronization access signal set may be sent on different time resources by using different beams in step 202. Different time resources may be used to transmit different synchronizations on different time resources. Access signal block.
- the synchronization access signal set includes synchronization access signal blocks with sequence numbers 1, 2, 3, 4, and 5, respectively
- the network side device includes beams with sequence numbers 1, 2, 3, 4, and 5, respectively.
- step 202 may be that the synchronous access signal block 1 is transmitted using the beam 1 on the time resource 1, and the synchronous access signal block 2 is transmitted on the time resource 2 using the beam 2, which is not listed here.
- different synchronization access signal blocks can be transmitted using different beams, which can improve the coverage of the network side devices.
- the synchronization access signal may also be referred to as an initial access signal, that is, the synchronization access signal block may also be referred to as an initial access signal block, and the synchronization access signal set may be referred to as an initial access. Signal set.
- the beam used in the embodiments of the present disclosure may be a narrow beam of a millimeter wave band.
- the embodiments of the present disclosure can be applied to a MIMO (Multiple-Input Multiple-Out-put) system, and can also be applied to a Global System for Mobile Communication (GSM) in millimeters.
- MIMO Multiple-Input Multiple-Out-put
- GSM Global System for Mobile Communication
- the scenario of the wave band application and can also be applied to the scenario where the code division multiple access (CDMA) technology is applied in the millimeter wave band.
- CDMA code division multiple access
- different subcarriers may also use different beams, and respectively send the multiple synchronization access signal blocks on different time resources, thereby implementing beam scanning to expand the cell. Coverage.
- the above method can be applied to the network side device in the network structure shown in FIG. 1.
- a synchronization access signal set is obtained, the synchronization access signal set includes a plurality of synchronization access signal blocks, and each synchronization access signal block includes a PSS, an SSS, and a PBCH signal, and each PBCH
- the signal includes an MIB, and the MIB includes sequence number information, and the sequence number
- the information is used to indicate the sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set; using different beams, respectively transmitting different ones in the synchronization access signal set on different time resources Synchronize access signal blocks.
- the user terminal can use the serial number information of the synchronous access signal to perform time synchronization, thereby improving the accuracy of time synchronization.
- FIG. 3 is a flowchart of another method for transmitting a synchronization access signal block according to some embodiments of the present disclosure. As shown in FIG. 3, the method includes the following steps:
- Step 301 Generate a synchronization access signal set, where the synchronization access signal set includes multiple synchronization access signal blocks, each synchronization access signal block includes a PSS, an SSS, and a PBCH signal, and each PBCH signal includes an MIB.
- the MIB includes sequence number information, and the sequence number information is used to indicate the sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set.
- the synchronization access signal set is generated.
- the generation of the synchronization access signal set is a limitation on acquiring the synchronization access signal set, so that in this embodiment, Step 301 may be to acquire a synchronization access signal set including a plurality of synchronization access signal blocks.
- Step 302 Send different synchronization access signal blocks in the synchronization access signal set on different time resources by using different beams.
- step 302 For the sending of step 302, refer to the corresponding description of the embodiment described based on FIG. 2, which is not described herein, and the same beneficial effects can be achieved.
- the sending, by the different time resources, different synchronization access signal blocks in the synchronization access signal set, respectively includes:
- the PSS, SSS, and PBCH signals included in the synchronization access signal block corresponding to the time resource are respectively transmitted through preset positions in the respective time resources.
- the preset position may be a preset Orthogonal Frequency Division Multiplexing (OFDM) symbol.
- OFDM Orthogonal Frequency Division Multiplexing
- the user terminal can obtain the PSS, SSS, and PBCH signals in advance using the preset position, and search for the time resources in the preset positions in the respective time resources.
- Corresponding sync access signal block includes PSS, SSS and PBCH signals.
- a preset OFDM symbol so that when a synchronous access signal block is received, the preset position used by at least one of the PSS, SSS, and PBCH can be directly used for time synchronization to improve the accuracy of time synchronization and Performance, for example, when the preset position is a preset OFDM symbol, synchronization of OFDM symbols can be implemented to further improve the accuracy and performance of time synchronization.
- the user terminal may synchronize the sequence number information of the access signal block and the location of at least one of the PSS, the SSS, and the PBCH, perform time synchronization, and perform time synchronization. That is, by using the sequence number information, synchronization of the time resource in the frame can be realized, and the synchronization of the symbols in the time resource can be determined by the position of the OFDM symbol used by at least one of the PSS, the SSS, and the PBCH.
- the foregoing preset position may be that the network side device is pre-configured to the user terminal, or the user terminal is pre-negotiated with the network side device, or is pre-defined in the protocol, and the embodiment of the present disclosure is not limited.
- the PSS, SSS, and PBCH signals included in the synchronization access signal block corresponding to the time resource are respectively sent by the preset location in each time resource, including:
- the PSS and the SSS can be sent in the start and end positions in the time resource, and both are sent twice, so that the user terminal can search for the synchronization connection corresponding to the time resource in the start position and the end position in each time resource.
- the PBCH signal described above may use an intermediate position to transmit a PBCH signal that may be one or more OFDM symbols between the start and end positions.
- the PSS and the SSS included in the synchronization access signal block corresponding to the time resource are sent twice by using a start location and an end location in each time resource, including:
- the PSS and the SSS are transmitted by using the first and second OFDM symbols, and the last and the second to last OFDM symbols, so that the user terminal can have the first OFDM symbol and the second last in each time resource.
- OFDM symbols searching for a PSS included in a synchronization access signal block corresponding to the time resource; searching for a synchronization access signal corresponding to the time resource in a second OFDM symbol and a last OFDM symbol in each time resource
- the SSS included in the block or, in the first OFDM symbol and the penultimate OFDM symbol in each time resource, searching for the SSS included in the synchronization access signal block corresponding to the time resource;
- the two OFDM symbols and the last OFDM symbol search for a PSS included in the synchronization access signal block corresponding to the time resource.
- the sending, by the different time resources, different synchronization access signal blocks in the synchronization access signal set, respectively includes:
- the sequence number information included in the MIB acquired by the user terminal may be used for time synchronization to accurately determine time resources of each synchronization access signal block to improve the accuracy of time synchronization.
- the valuable MIB can be greatly reduced. Signaling overhead. Improve the overall performance of the system.
- the initial sending time when the time resource is a subframe, the initial sending time is a preset subframe in a frame; when the time resource is a slot, the initial sending time is an intraframe.
- the default slot when the time resource is a subframe, the initial sending time is a preset subframe in a frame; when the time resource is a slot, the initial sending time is an intraframe. The default slot.
- the preset subframe may be preset in the frame, for example, the network side device is preset and told to the user terminal, or the network side device and the user terminal are pre-negotiated, or the protocol is pre-provisioned.
- Set such as the first subframe in the frame, or the second subframe in the frame, or the last subframe in the frame. Therefore, the user terminal can determine the position of each subframe in the frame through the MIB, so as to improve the synchronization time accuracy.
- the preset slot may be preset in the frame, for example, the network side device is preset and told the user terminal, or the network side device and the user terminal pre-negotiate, or the protocol pre- Set it, such as the first slot in the frame, or the second slot in the frame, or the last slot in the frame. Therefore, the user terminal can determine the position of the received synchronization access signal block slot in the frame through the MIB, so as to improve the synchronization time accuracy.
- the initial sending time is a first subframe in a frame; when the time resource is a slot, the initial sending time is a first slot in a frame or The slot in the first subframe within the frame.
- the initial transmission time is the first subframe in the frame, or the initial transmission time is the first slot in the frame or the slot in the first subframe in the frame, so that the user terminal acquires the MIB.
- time synchronization can be conveniently and quickly performed to improve the efficiency of time synchronization.
- the foregoing provides an implementation manner of transmitting a first synchronization access signal block in the synchronization access signal set at a preset initial transmission time, and the foregoing providing The preset positions in the respective time resources respectively send the PSS, SSS and PBCH signals included in the synchronization access signal block corresponding to the time resources, and the two implementation manners can be implemented in combination with each other.
- the initial transmission time is an example of a first subframe in a frame
- the transmission of a synchronization access signal set may be as shown in FIG. 4, and the first synchronization access signal of the synchronization access signal set is synchronized.
- the first subframe is sent, and the sequence number of the synchronization access signal block (SS block) sent by the subframe is 1.
- FIG. 4 shows a transmission diagram in the synchronization access signal block. As shown in FIG. 4, the first OFDM symbol in the subframe transmits the PSS, the second OFDM symbol transmits the SSS, and the third to the ninth OFDM.
- the symbol transmits data (data), the tenth to twelfth two transmit PBCH signals, the second to last OFDM symbols transmit PSS, and the last one symbol transmits SSS.
- data data
- tenth to twelfth two transmit PBCH signals the tenth to twelfth two transmit PBCH signals
- the second to last OFDM symbols transmit PSS
- the last one symbol transmits SSS.
- FIG. 4 only one synchronization access signal block is illustrated, and the remaining synchronization access signal blocks can adopt the same implementation manner.
- the information field of the MIB can be as shown in Table 1:
- the synchronization access signal set index may be sequence number information of the synchronization access signal block.
- the current frame number information can be obtained through the system frame number, and the synchronization of the frame level is realized.
- the subframe index of the current subframe in the frame can be obtained by the following calculation:
- the remainder of the synchronization access signal set index divided by 10 is the sequence number of the current subframe to achieve synchronization of the subframe level.
- the synchronization of the OFDM symbols in the sub-frame the fixed OFDM symbol position used by the user terminal by using at least one of the PSS, SSS, and PBCH signals by using the foregoing PSS, SSS, and PBCH signals provided by the preset OFDM symbol transmission implementation. To determine, thus achieving synchronization of the OFDM symbol level, and thus achieving accurate synchronization at the user end.
- the initial transmission time is an example of a first slot in a frame
- the transmission of the synchronization access signal set may be as shown in FIG. 5 (formerly FIG. 6), and the initial transmission time of the synchronization access signal set is the first one.
- Slot the sequence number of the synchronization access signal block sent by the slot is 1.
- slot 0 to slot 11 transmit the synchronization access signal block in one frame
- slot 12 to slot 19 transmit data.
- FIG. 5 shows a transmission diagram in the synchronization access signal block. As shown in FIG. 5, the first OFDM symbol in the slot transmits the PSS, the second OFDM symbol transmits the SSS, and the third to the fifth transmits the PBCH.
- the OFDM symbol transmits the PSS, and the most recent symbol transmits the SSS.
- the information field of the MIB can be as shown in Table 2:
- the current frame number information can be obtained through the system frame number to implement synchronization of the frame.
- the slot number of the current slot in the frame can be obtained by the following calculation:
- the sequence number of the current subframe can be obtained as follows:
- the synchronization of the OFDM symbols in the slot may be performed by using the preset OFDM symbol transmission manner by using the PSS, SSS and PBCH signals provided above, so that the user terminal uses the fixed OFDM symbol position used by at least one of the PSS, SSS and PBCH signals. Determined to achieve this level of synchronization of the OFDM symbol, thereby achieving precise synchronization at the user end.
- the sending, by the different time resources, different synchronization access signal blocks in the synchronization access signal set, respectively includes:
- the method further includes transmitting data through other slots within the subframe.
- each subframe can be time synchronized using only a preset slot, and other slots transmit data, and the user terminal searches for a synchronization access signal block corresponding to the subframe in a preset slot in the subframe; And receiving data in other slots within the subframe.
- the OFDM symbols of the transmission data and the synchronization access signal block are contiguous, so that the user terminal does not need to frequently switch between the received data and the synchronization access signal block when receiving, thereby reducing the complexity of transmission and reception. Degree, improve the performance of the user terminal.
- the preset slot in the subframe is a first slot or a second slot in the subframe.
- the foregoing embodiments can be implemented in combination with each other, so that the user terminal can perform more accurate time synchronization to improve time synchronization performance.
- the transmission of the synchronization access signal set may be as shown in FIG. 6 (formerly FIG. 8), and the synchronization access signal set is A synchronization access signal block is sent for the second slot of the first subframe, and the sequence of the synchronization access signal block sent by the slot is 1.
- FIG. 6 shows a transmission diagram in the synchronization access signal block.
- the first slot in the subframe transmits data
- the first OFDM symbol in the second slot transmits PSS
- the second The OFDM symbols transmit SSS
- the third to fifth transmit PBCH signals the second to last OFDM symbols transmit PSS
- the last symbol transmits SSS.
- the information field of the MIB can be as shown in Table 3:
- the current frame number information can be obtained through the system frame number to implement synchronization of the frame.
- the sequence number of the current subframe in the frame can be obtained by the following calculation:
- the remainder of the synchronization access signal set index (SS block index) divided by 10 is the current sub- The sequence number of the frame to achieve synchronization of the sub-frame level.
- the slot number can be obtained by using the subframe number, because the slot for transmitting the synchronization access signal block is the preset position slot in the subframe, for example, the preset slot is the second slot in the subframe, and the user terminal calculates the slot. If the current subframe number is 1, then it can be determined that the current slot number is 1 (the first slot has a sequence number of 0).
- the synchronization of the OFDM symbols in the slot may be performed by using the preset OFDM symbol transmission manner by using the PSS, SSS and PBCH signals provided above, so that the user terminal uses the fixed OFDM symbol position used by at least one of the PSS, SSS and PBCH signals. Determined to achieve this level of synchronization of the OFDM symbol, thereby achieving precise synchronization at the user end.
- the first synchronization access signal block in the synchronization access signal set is transmitted at an arbitrary position in the frame, and the MIB includes sequence number information of the synchronization access signal block in the synchronization access signal set.
- FIG. 7 original FIG. 9
- the first synchronization access signal block of the synchronization access signal set is transmitted in the second slot of the ninth subframe of one frame, and the structure of the synchronization access signal block can be adopted as shown in FIG. 6.
- the information field of the MIB can be as shown in Table 4:
- the initial transmission subframe index in the synchronization access signal set may be understood as the location information of the initial transmission subframe in the synchronization access signal set, that is, the first synchronization access signal block of the synchronization access signal set.
- the position information of the used subframe may be understood as the location information of the initial transmission subframe in the synchronization access signal set, that is, the first synchronization access signal block of the synchronization access signal set.
- the mobile client After receiving the MIB information, the mobile client can obtain the current frame sequence number information through the system frame number r to achieve synchronization of the frame level.
- the sequence number of the current subframe in the frame can be obtained by the following calculation:
- Subframe index mod(SS block index+SS Burst starting subframe index,10)
- the synchronization access signal set index (SS block index) plus the initial transmission subframe index (SS Burst starting subframe index) in the synchronization access signal set divided by 10 is the sequence number of the current subframe to implement the subframe.
- the slot number can be obtained by using the subframe number, because the slot for transmitting the synchronization access signal block is the preset position slot in the subframe, for example, the preset slot is the second slot in the subframe, and the user terminal calculates the slot. If the current subframe number is 1, then it can be determined that the current slot number is 1 (the first slot has a sequence number of 0).
- the synchronization of the OFDM symbols in the slot may be performed by using the preset OFDM symbol transmission manner by using the PSS, SSS and PBCH signals provided above, so that the user terminal uses the fixed OFDM symbol position used by at least one of the PSS, SSS and PBCH signals. Determined to achieve this level of synchronization of the OFDM symbol, thereby achieving precise synchronization at the user end.
- the MIB includes location information for transmitting a time resource of a first synchronization access signal block in the synchronization access signal set.
- the user terminal can use the sequence number information and the information included in the MIB.
- the location information is time synchronized to improve the accuracy of time synchronization.
- the time resource of the first synchronization access signal block can be any position, which increases the flexibility of time synchronization.
- the location information of the time resource used to send the first synchronization access signal block in the synchronization access signal set is specifically used to send the first one in the synchronization access signal set.
- the location information is a sequence number of a subframe or a slot in a frame, so that the user terminal can conveniently calculate the sequence number of the subframe or the slot that receives the synchronization access signal block, so as to implement time synchronization conveniently and quickly.
- the foregoing MIB includes an implementation manner for transmitting location information of a time resource of a first synchronization access signal block in the synchronization access signal set, and the foregoing provision.
- the PSS, SSS, and PBCH signals included in the synchronization access signal block corresponding to the time resource are separately transmitted through preset positions in the respective time resources, and the two implementation manners can be implemented in combination with each other.
- the MIB includes the sequence number information of the corresponding synchronization access signal block in the synchronization access signal set.
- FIG. 8 the original FIG. 2
- the first synchronization access signal block of the synchronization access signal set is transmitted in the subframe 9 of one frame, and the structure of the synchronization access signal block can be as shown in FIG. structure.
- the information field of the MIB is as shown in Table 5:
- the initial transmission subframe index in the synchronization access signal set may be understood as the location information of the initial transmission subframe in the synchronization access signal set, that is, the first synchronization access signal block of the synchronization access signal set.
- the position information of the used subframe may be understood as the location information of the initial transmission subframe in the synchronization access signal set, that is, the first synchronization access signal block of the synchronization access signal set.
- the current frame number information can be obtained through the system frame number. Achieve synchronization at the level of the frame.
- the sequence number of the current subframe in the frame can be obtained by the following calculation:
- Subframe index mod(SS block index+SS Burst starting subframe index,10)
- the synchronization block signal set index (SS block index) plus the initial transmission subframe index (SS Burst starting subframe index) in the synchronization access signal set divided by 10 is the sequence number of the current subframe.
- the synchronization of the intra-subframe OFDM symbols can be determined by the preset OFDM symbol positions used by at least one of the PSS, SSS, and PBCH signals, thereby achieving synchronization of the OFDM symbols, thereby achieving accurate synchronization at the user end.
- the MIB includes the sequence number information of the synchronization access signal block in the synchronization access signal set.
- the initial transmission slot of the synchronous access signal set is slot 18 within one frame, and the structure of the synchronous access signal block can adopt the structure shown in FIG.
- the information domain of the MIB is like Table 5 shows:
- the initial transmission slot index in the synchronization access signal set can be understood as the location information of the initial transmission slot in the synchronization access signal set, that is, the first synchronization access signal block used in the synchronization access signal set.
- the location information of the slot can be understood as the location information of the initial transmission slot in the synchronization access signal set, that is, the first synchronization access signal block used in the synchronization access signal set. The location information of the slot.
- the current frame number information can be obtained through the system frame number to implement synchronization of the frame.
- the sequence number of the current slot in the frame can be obtained by the following calculation:
- the synchronization access signal set index (SS block index) plus the initial transmission slot index (SS Burst starting slot index) in the synchronization access signal set divided by 20 is the serial number of the current slot to achieve the slot level. Synchronization.
- sequence number of the current subframe can be obtained as follows:
- the synchronization of the OFDM symbols in the slot can be determined by the preset OFDM symbol positions used by at least one of the PSS, SSS and PBCH signals, thereby realizing the synchronization of the OFDM symbols, thereby achieving accurate synchronization at the user end.
- FIG. 10 is a flowchart of another method for transmitting a synchronization access signal block according to some embodiments of the present disclosure. As shown in FIG. 10, the method includes the following steps:
- Step 1001 Search for different synchronizations in the synchronization access signal set on different time resources.
- Accessing a signal block each of the synchronization access signal blocks includes a PSS, an SSS, and a PBCH signal, each PBCH signal includes a primary information block MIB, and the MIB includes sequence number information, and the serial number information A sequence number indicating a synchronization access signal block in which the MIB is located in the synchronization access signal set.
- the step 1001 may be that the user terminal searches for different synchronization access signal blocks in multiple time resources. When searching for the PSS or SSS in the synchronization access signal block, it is determined that the synchronization access signal block is transmitted on the time resource. And obtaining other information of the synchronization access signal block, such as a PBCH signal, on the time resource.
- the synchronization access signal block can refer to the corresponding description based on the embodiment described in FIG. 2 and the embodiment described based on FIG. 3-9, and details are not described herein, and the same beneficial effects can be achieved.
- Step 1002 When searching for the synchronization access signal block in the synchronization access signal set, demodulate the PBCH signal in the searched synchronization access signal block to obtain an MIB.
- MIB For the MIB, refer to the embodiment described based on FIG. 2 and the corresponding description of the embodiment based on FIG. 3-9, which are not described herein, and the same beneficial effects can be achieved.
- Step 1003 Obtain sequence number information from the demodulated MIB, and use the sequence number information to perform time synchronization.
- searching for different synchronization access signal blocks in the synchronization access signal set on different time resources including:
- the using the serial number information for time synchronization includes:
- Time synchronization is performed using the sequence number information and the location of at least one of the PSS, the SSS, and the PBCH.
- Corresponding PSS, SSS and PBCH signals included in the synchronization access signal block include:
- the PBCH signal included in the access signal block is synchronized.
- the starting location and the ending location in the respective time resources searching for the PSS and the SSS included in the synchronization access signal block corresponding to the time resource, including:
- searching for different synchronization access signal blocks in the synchronization access signal set on different time resources including:
- the using the serial number information for time synchronization includes:
- Time synchronization is performed using the serial number information and the initial transmission time.
- the initial sending time is a preset subframe in a frame; when the time resource is a slot, the initial sending time is a preset slot in the frame.
- the time resource of this embodiment can be referred to the corresponding description based on the embodiment described in FIG. 2 and the embodiment described based on FIG. 3-9, and details are not described herein, and the same beneficial effects can be achieved.
- the initial sending time is a first subframe in a frame; when the time resource is a slot, the initial sending time is a first slot in a frame or The slot in the first subframe within the frame.
- the time resource of this embodiment can be referred to the corresponding description based on the embodiment described in FIG. 2 and the embodiment described based on FIG. 3-9, and details are not described herein, and the same beneficial effects can be achieved.
- searching for different synchronization access signal blocks in the synchronization access signal set on different time resources including:
- the method further includes:
- the preset slot in the subframe is a first slot or a second slot in the subframe.
- the MIB includes location information of a time resource used to send a first synchronization access signal block in the synchronization access signal set;
- the time synchronization is performed by using the serial number information included in the MIB, including:
- the time synchronization is performed using the serial number information included in the MIB and the location information.
- the location information of the time resource used to send the first synchronization access signal block in the synchronization access signal set is specifically used to send the first in the synchronization access signal set.
- the sequence number of the subframe or slot in which the synchronization access signal block is within the frame.
- each synchronization access signal block in the synchronization access signal set includes a PSS, an SSS, and a PBCH signal
- each PBCH signal includes a primary information block MIB
- the MIB includes sequence number information
- the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set
- demodulating the PBCH signal in the searched synchronization access signal block to obtain an MIB
- sequence number information from the demodulated MIB and using the The serial number information is time synchronized. This can improve the accuracy of time synchronization.
- FIG. 11 is a structural diagram of a network side device provided by the implementation of the present disclosure, which can implement a method for transmitting a synchronization access signal block according to the embodiment described in FIG. 2 to the embodiment described based on FIG. 3-9. Details and achieve the same effect.
- the network side device 1100 includes an obtaining module 1101 and a sending module 1102, where:
- the obtaining module 1101 is configured to obtain a synchronization access signal set, where the synchronization access signal set includes multiple synchronization access signal blocks, each synchronization access signal block includes a PSS, an SSS, and a PBCH signal, and each PBCH signal includes a MIB.
- the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set;
- the sending module 1102 is configured to send different synchronization access signal blocks in the synchronization access signal set on different time resources by using different beams.
- the sending module 1102 is specifically configured to separately send the PSS, SSS, and PBCH signals included in the synchronization access signal block corresponding to the time resource by using a preset location in each time resource.
- the sending module 1102 is configured to: send, by using a start location and an end location in each time resource, the PSS and the SSS included in the synchronization access signal block corresponding to the time resource; An intermediate position within the PBCH signal included in the synchronization access signal block corresponding to the time resource.
- the sending module 1102 is specifically configured to pass the first orthogonal frequency division in each time resource. And multiplexing the OFDM symbol and the penultimate OFDM symbol, repeatedly transmitting the PSS included in the synchronization access signal block corresponding to the time resource; and repeatedly transmitting the second OFDM symbol and the last OFDM symbol in each time resource The SSS included in the synchronization access signal block corresponding to the time resource;
- the sending module 1102 is specifically configured to send, according to a preset initial sending time, a first synchronization access signal block in the synchronization access signal set.
- the initial sending time is a preset subframe in a frame; when the time resource is a slot, the initial sending time is a preset slot in the frame.
- the initial sending time is a first subframe in a frame; when the time resource is a slot, the initial sending time is a first slot in a frame or The slot in the first subframe within the frame.
- the sending module 1102 is specifically configured to send, by using a preset slot in the subframe, a synchronization access signal block corresponding to the subframe;
- the network side device further includes:
- the data transmission module 1103 is configured to transmit data through other slots in the subframe.
- the preset slot in the subframe is a first slot or a second slot in the subframe.
- the MIB includes location information of a time resource for transmitting a first synchronization access signal block in the synchronization access signal set.
- the location information of the time resource used to send the first synchronization access signal block in the synchronization access signal set is specifically used to send the first one in the synchronization access signal set.
- a synchronization access signal set is obtained, the synchronization access signal set includes a plurality of synchronization access signal blocks, and each synchronization access signal block includes a PSS, an SSS, and a PBCH signal.
- each PBCH signal includes an MIB
- the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set; using different beams, Different synchronization access signal blocks in the set of synchronization access signals are transmitted on different time resources, respectively.
- the user terminal can use the serial number information of the synchronous access signal to perform time synchronization, thereby improving the accuracy of time synchronization.
- PSS, SSS, and PBCH signals are transmitted through preset positions to synchronize the OFDM symbols to further improve the accuracy and performance of the time synchronization.
- multiple synchronization access signal blocks can also be sent in different subframes to achieve synchronization of subframes to further improve the accuracy and performance of time synchronization.
- the synchronous access signal block can also be transmitted in one slot in the same subframe, and the data is transmitted in another slot, so that the user terminal does not need to frequently switch between the received data and the synchronous access signal block when receiving. Thereby, the complexity of transmission and reception is reduced, and the performance of the user terminal is improved.
- FIG. 13 is a structural diagram of a user terminal provided by some implementations of the present disclosure, which can implement the details of the transmission method of the synchronization access signal block in the embodiment described based on FIG. 10, and achieve the same effect.
- the user terminal 1300 includes: a search module 1301, a demodulation module 1302, and a synchronization module 1303, where:
- the searching module 1301 is configured to search, on different time resources, different synchronization access signal blocks in the synchronization access signal set, where each synchronization access signal block in the synchronization access signal set includes a number PSS, an SSS, and a PBCH signal, each PBCH signal includes a main information block MIB, and the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set;
- the demodulation module 1302 is configured to: when searching for the synchronization access signal block in the synchronization access signal set, demodulate the PBCH signal in the searched synchronization access signal block to obtain an MIB;
- the synchronization module 1303 is configured to obtain sequence number information from the demodulated MIB, and perform time synchronization using the sequence number information.
- the searching module 1301 is specifically configured to search, in a preset location in each time resource, a PSS, an SSS, and a PBCH signal included in the synchronization access signal block corresponding to the time resource, respectively.
- the synchronization module 1303 is specifically configured to obtain sequence number information from the demodulated MIB, and perform time synchronization by using the sequence number information and the location of at least one of the PSS, the SSS, and the PBCH.
- the searching module 1301 is specifically configured to search for a PSS and an SSS included in the synchronization access signal block corresponding to the time resource in a start location and an end location in each time resource; An intermediate location within the location, searching for a PBCH signal included in the synchronization access signal block corresponding to the time resource.
- the searching module 1301 is specifically configured to search for a first OFDM symbol and a second to last OFDM symbol in each time resource, and search for a synchronization access signal block corresponding to the time resource.
- the searching module 1301 is specifically configured to search for a first synchronization access signal block in the synchronization access signal set at a preset initial transmission time;
- the synchronization module 1303 is specifically configured to obtain sequence number information from the demodulated MIB, and perform time synchronization using the sequence number information and the initial transmission time.
- the initial sending time is a preset subframe in a frame; when the time resource is a slot, the initial sending time is a preset slot in the frame.
- the initial sending time is a first subframe in a frame; when the time resource is a slot, the initial sending time is a first slot in a frame or The slot in the first subframe within the frame.
- the searching module 1301 is specifically configured to use a preset slot in a subframe, and search and a synchronization access signal block corresponding to the subframe;
- the user terminal further includes:
- the data receiving module 1304 is configured to receive data in other slots in the subframe.
- the preset slot in the subframe is a first slot or a second slot in the subframe.
- the MIB includes location information of a time resource used to send a first synchronization access signal block in the synchronization access signal set;
- the synchronization module 1303 is specifically configured to perform time synchronization using the sequence number information and the location information.
- the location information of the time resource used to send the first synchronization access signal block in the synchronization access signal set is specifically used to send the first one in the synchronization access signal set.
- each synchronization access signal block in the synchronization access signal set includes a PSS, an SSS, and a PBCH signal
- each PBCH signal includes a primary information block MIB
- the MIB includes sequence number information
- the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set
- demodulating the PBCH signal in the searched synchronization access signal block to obtain an MIB
- sequence number information from the demodulated MIB and using the The serial number information is time synchronized. This can improve the accuracy of time synchronization.
- PSS, SSS, and PBCH signals are transmitted through preset positions to synchronize the OFDM symbols to further improve the accuracy and performance of the time synchronization.
- the synchronous access signal block can also be received in different subframes to achieve synchronization of the subframe to further improve the accuracy and performance of time synchronization.
- the synchronization access signal block in one slot in the same subframe, in another slot.
- the data is transmitted, so that the user terminal does not need to frequently switch between the received data and the synchronization access signal block when receiving, thereby reducing the complexity of transmission and reception and improving the performance of the user terminal.
- FIG. 15 is a structural diagram of a network side device applied to some embodiments of the present disclosure, which can implement a method for transmitting a synchronization access signal block based on the embodiment described in FIG. 2 to the embodiment described based on FIG. 3-9. The details and achieve the same effect.
- the network side device 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, a user interface 1504, and a bus interface, where:
- the processor 1501 is configured to read a program in the memory 1503 and perform the following process:
- each synchronization access signal block includes a PSS, an SSS, and a PBCH signal
- each PBCH signal includes an MIB
- the MIB includes a sequence number.
- the sequence number information is used to indicate a sequence number of the synchronization access signal block where the MIB is located in the synchronization access signal set;
- different synchronized access signal blocks in the set of synchronization access signals are transmitted on different time resources, respectively.
- the transceiver 1502 is configured to receive and transmit data under the control of the processor 1501.
- the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1501 and various circuits of memory represented by memory 1503.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
- the bus interface provides an interface.
- Transceiver 1502 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
- the user interface 1504 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1503 can store data used by the processor 1501 when performing operations.
- the transmitting by the processor 1501, the different synchronization access signal blocks in the synchronization access signal set respectively on different time resources, including:
- the PSS, SSS, and PBCH signals included in the synchronization access signal block corresponding to the time resource are respectively transmitted through preset positions in the respective time resources.
- the PSS, SSS, and PBCH signals included in the synchronization access signal block corresponding to the time resource are respectively sent by using the preset location in each time resource by the processor 1501, including:
- the transmitting by the processor 1501, the PSS and the SSS included in the synchronization access signal block corresponding to the time resource by using a start location and an end location in each time resource, including:
- the transmitting by the processor 1501, the different synchronization access signal blocks in the synchronization access signal set respectively on different time resources, including:
- the initial sending time is a preset subframe in a frame; when the time resource is a slot, the initial sending time is a preset slot in the frame.
- the initial sending time is a first subframe in a frame; when the time resource is a slot, the initial sending time is a first slot in a frame or The slot in the first subframe within the frame.
- the sending by the processor 1501, the different synchronization access signal blocks in the synchronization access signal set respectively on different time resources, including: sending, by using a preset slot in the subframe Sending a synchronization access signal block corresponding to the subframe;
- the processor 1501 is also configured to:
- Data is transmitted through other slots within the subframe.
- the preset slot in the subframe is a first slot or a second slot in the subframe.
- the MIB includes location information of a time resource for transmitting a first synchronization access signal block in the synchronization access signal set.
- the location information of the time resource used to send the first synchronization access signal block in the synchronization access signal set is specifically used to send the first one in the synchronization access signal set.
- a synchronization access signal set is obtained, where the synchronization access signal set includes multiple synchronization access signal blocks, and each synchronization access signal block includes a PSS, an SSS, and a PBCH signal, and each PBCH signal includes an MIB.
- the MIB includes sequence number information, where the sequence number information is used to indicate the sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set; and the different beams are used to transmit the time on different time resources.
- Different synchronized access signal blocks in the set of synchronous access signals are described. In this way, the user terminal can use the serial number information of the synchronous access signal to perform time synchronization, thereby improving the accuracy of time synchronization.
- PSS, SSS, and PBCH signals are transmitted through preset positions to synchronize the OFDM symbols to further improve the accuracy and performance of the time synchronization.
- multiple synchronization access signal blocks can also be sent in different subframes to achieve synchronization of subframes to further improve the accuracy and performance of time synchronization.
- the synchronous access signal block can also be transmitted in one slot in the same subframe, and the data is transmitted in another slot, so that the user terminal does not need to frequently switch between the received data and the synchronous access signal block when receiving. Thereby, the complexity of transmission and reception is reduced, and the performance of the user terminal is improved.
- FIG. 16 is a structural diagram of a user terminal to which an embodiment of the present disclosure is applied, which can The details of the system information block transmission method based on the embodiment described in FIG. 2 to the embodiment described based on FIGS. 3-9 are implemented and achieve the same effect.
- the user terminal 1600 includes at least one processor 1601, a memory 1602, at least one network interface 1604, and a user interface 1603.
- the various components in user terminal 1600 are coupled together by a bus system 1605.
- the bus system 1605 is used to implement connection communication between these components.
- the bus system 1605 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
- various buses are labeled as bus system 1605 in FIG.
- the user interface 1603 may include a display, a keyboard, or a pointing device (eg, a mouse, a track ball, a touch pad, or a touch screen, etc.).
- a pointing device eg, a mouse, a track ball, a touch pad, or a touch screen, etc.
- the memory 1602 in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
- the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
- RAM Random Access Memory
- many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
- SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- ESDRAM Enhanced Synchronous Dynamic Random Access Memory
- SDRAM Synchronous Connection Dynamic Random Access Memory
- DRRAM direct memory bus random access memory
- the memory 1602 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 16021 and an application 16022.
- the operating system 16021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
- Application 16022 It includes various applications, such as Media Player, Browser, etc., for implementing various application services.
- a program implementing the methods of the embodiments of the present disclosure may be included in the application 16022.
- the processor 1601 by calling a program or an instruction stored in the memory 1602, specifically, a program or an instruction stored in the application 16022, the processor 1601 is configured to:
- each synchronization access signal block in the synchronization access signal set includes PSS, SSS, and PBCH signals, each PBCH signal Including the MIB, the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set;
- the sequence number information is obtained from the demodulated MIB, and the sequence number information is used for time synchronization.
- the method disclosed in the above embodiments of the present disclosure may be applied to the processor 1601 or implemented by the processor 1601.
- the processor 1601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1601 or an instruction in a form of software.
- the processor 1601 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure may be implemented or carried out.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly embodied by the execution of the hardware decoding processor or by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 1602, and the processor 1601 reads the information in the memory 1602 and completes the steps of the above method in combination with its hardware.
- the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), Programmable Logic Device (PLD), Field Programmable A Field-Programmable Gate Array (FPGA), a general purpose processor, a controller, a microcontroller, a microprocessor, other electronic units for performing the functions described herein, or a combination thereof.
- ASIC Application Specific Integrated Circuits
- DSP Digital Signal Processing
- DSP Device Digital Signal Processing Equipment
- PLD Programmable Logic Device
- FPGA Field Programmable A Field-Programmable Gate Array
- a general purpose processor a controller, a microcontroller, a microprocessor, other electronic units for performing the functions described herein, or a combination thereof.
- the techniques described herein can be implemented by modules (eg, procedures, functions, and so on) that perform the functions described herein.
- the software code can be stored in memory and executed by the processor.
- the memory can be implemented in the processor or external to the processor.
- searching, by the processor 1601, the different synchronization access signal blocks in the synchronization access signal set on different time resources including:
- the time synchronization performed by the processor 1601 using the serial number information includes:
- Time synchronization is performed using the sequence number information and the location of at least one of the PSS, the SSS, and the PBCH.
- the preset positions in the respective time resources that are executed by the processor 1601 respectively search for PSS, SSS, and PBCH signals included in the synchronization access signal block corresponding to the time resource, including:
- the PBCH signal included in the access signal block is synchronized.
- the PSS and the SSS included in the synchronization access signal block corresponding to the time resource, where the processor 1601 performs the start location and the end location in each time resource includes:
- searching, by the processor 1601, the different synchronization access signal blocks in the synchronization access signal set on different time resources including:
- the time synchronization performed by the processor 1601 using the serial number information includes:
- Time synchronization is performed using the serial number information and the initial transmission time.
- the initial sending time is a preset subframe in a frame; when the time resource is a slot, the initial sending time is a preset slot in the frame.
- the initial sending time is a first subframe in a frame; when the time resource is a slot, the initial sending time is a first slot in a frame or The slot in the first subframe within the frame.
- searching, by the processor 1601, the different synchronization access signal blocks in the synchronization access signal set on different time resources including:
- the processor 1601 is also configured to:
- the preset slot in the subframe is a first slot or a second slot in the subframe.
- the MIB includes location information of a time resource used to send a first synchronization access signal block in the synchronization access signal set;
- the time synchronization performed by the processor 1601 using the serial number information included in the MIB includes:
- the time synchronization is performed using the serial number information included in the MIB and the location information.
- the location information of the time resource used to send the first synchronization access signal block in the synchronization access signal set is specifically used to send the first one in the synchronization access signal set.
- each synchronization access signal block in the synchronization access signal set includes PSS, SSS, and PBCH signals.
- Each PBCH signal includes a primary information block MIB, and the MIB includes sequence number information, where the sequence number information is used to indicate a sequence number of the synchronization access signal block in which the MIB is located in the synchronization access signal set;
- demodulating the PBCH signal in the searched synchronization access signal block to obtain the MIB; obtaining the sequence number information from the demodulated MIB, and using the sequence number information Time synchronization. This can improve the accuracy of time synchronization.
- PSS, SSS, and PBCH signals are transmitted by preset position symbols to implement synchronization of the OFDM symbols to further improve the accuracy and performance of the time synchronization.
- the synchronous access signal block can also be received in different subframes to achieve synchronization of the subframe to further improve the accuracy and performance of time synchronization.
- the disclosed apparatus and method may be implemented in other manners.
- the device embodiments described above are merely illustrative, examples.
- the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be ignored, or not carried out.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present disclosure.
- each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such an understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
- the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本公开文本提供一种同步接入信号块的传输方法、网络侧设备和用户终端,该方法包括:获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
Description
相关申请的交叉引用
本申请主张在2016年12月29日在中国提交的中国专利申请No.201611243970.X的优先权,其全部内容通过引用包含于此。
本公开文本涉及通信技术领域,尤其涉及一种同步接入信号块的传输方法、网络侧设备和用户终端。
目前毫米波波段(6-100GHz)因其频谱资源丰富和传输带宽宽的优点而备受关注,已经成为未来通信系统(例如:5G)标准的必备技术。然而,毫米波技术的一个突出缺点是路径损耗非常大,而且,随着频率越高,路径损耗越大,这样就导致毫米波波段的窄波束的覆盖区域很小。
相关技术中的通信系统中,基站将相同的同步接入信号在不同的时间利用不同的波束进行重复发送,不同的波束覆盖不同的区域,从而实现广播功能,以实现扩大覆盖范围。但相关技术中的通信系统中,同步接入信号仅是按时间顺序依次发送的,这样就会导致用户终端的时间同步的精确度比较差。
发明内容
本公开文本实施例提供一种同步接入信号块的传输方法、网络侧设备和用户终端,以解决时间同步的精确度比较差的问题。
第一方面,本公开文本实施例提供一种同步接入信号块的传输方法,包括:
获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括主同步信号(PSS,Primary Synchronization Signal)、次同步信号(SSS,Secondary Synchronization Signal)和物理广播信道(PBCH,Physical Broadcast Channel)信号,每个PBCH信号包括主信息
块(MIB,Master Information Block),所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
第二方面,本公开文本实施例提供一种同步接入信号块的传输方法,包括:
在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;
在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;
从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。
第三方面,本公开文本实施例提供一种网络侧设备,包括:
获取模块,用于获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;
发送模块,用于使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
第四方面,本公开文本实施例提供一种用户终端,包括:
搜索模块,用于在时间资源上搜索同步接入信号块,所述同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;
解调模块,用于对所述PBCH信号解调,得到MIB;
同步模块,用于使用所述MIB包括的所述序号信息进行时间同步。
第五方面,本公开文本实施例提供一种网络侧设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处
理器执行所述计算机程序时实现如第一方面所述的同步接入信号块的传输方法的步骤。
第六方面,本公开文本实施例提供一种用户终端,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如第二方面所述的同步接入信号块的传输方法的步骤。
第七方面,本公开文本实施例提供一种同步接入信号块的传输系统,包括如第三方面所述网络侧设备和如第四方面所述用户终端。
第八方面,本公开文本实施例提供一种同步接入信号块的传输系统,包括如第五方面所述网络侧设备和如第六方面所述用户终端。
这样,本公开文本实施例中,获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。这样可以实现让用户终端使用同步接入信号的序号信息进行时间同步,从而可以提高时间同步的精确度。
为了更清楚地说明本公开文本实施例的技术方案,下面将对本公开文本实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开文本的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是本公开文本实施例可应用的一种同步接入信号组的传输系统的结构图;
图2是本公开文本一些实施例提供的一种同步接入信号块的传输方法的流程图;
图3是本公开文本一些实施例提供的另一种同步接入信号块的传输方法
的流程图;
图4是本公开文本的图3的实施例提供的同步接入信号块内的传输示意图之一;
图5是本公开文本的图3的实施例提供的同步接入信号块内的传输示意图之二;
图6是本公开文本的图3的实施例提供的同步接入信号块内的传输示意图之三;
图7是本公开文本的图3的实施例提供的同步接入信号块内的传输示意图之四;
图8是本公开文本的图3的实施例提供的同步接入信号块内的传输示意图之五;
图9是本公开文本的图3的实施例提供的同步接入信号块内的传输示意图之六;
图10是本公开文本一些实施例提供的一种同步接入信号组的传输方法的流程图;
图11是本公开文本一些实施例提供的网络侧设备的结构图之一;
图12是本公开文本一些实施例提供的网络侧设备的结构图之二;
图13是本公开文本一些实施例提供的用户终端的结构图之一;
图14是本公开文本一些实施例提供的用户终端的结构图之二;
图15是本公开文本一些实施例提供的网络侧设备的结构图;
图16是本公开文本一些实施例提供的用户终端的结构图。
下面将结合本公开文本实施例中的附图,对本公开文本实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开文本一部分实施例,而不是全部的实施例。基于本公开文本中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开文本保护的范围。
参见图1,图1为本公开文本一些实施例可应用的一种同步接入信号块
的传输系统的结构图,如图1所示,该传输系统包括用户终端11和网络侧设备12,其中,用户终端11可以是UE(User Equipment),例如:可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant,简称PDA)、移动上网装置(Mobile Internet Device,MID)或可穿戴式设备(Wearable Device)等终端侧设备,需要说明的是,在本公开文本实施例中并不限定用户终端11的具体类型。用户终端11可以与网络侧设备12建立通信,其中,附图中的网络可以表示用户终端11与网络侧设备12无线建立通信,网络侧设备12可以是传输接收点(TRP,Transmission Reception Point),或者可以是基站,基站可以是宏站,如LTE eNB、5G NR NB等。或者网络侧设备12可以是接入点(AP,access point)。
需要说明的是,在本公开文本实施例中并不限定网络侧设备12的具体类型,用户终端11和网络侧设备12的具体功能将通过以下多个实施例进行具体描述。
参见图2,图2是本公开文本一些实施例提供的一种同步接入信号块的传输方法的一个流程图,如图2所示,包括以下步骤:
步骤201、获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号。
本公开文本实施例中,上述同步接入信号集合(SS burst)包括的同步接入信号块(SS block)的数量可以是小于或者等于一帧内包括的子帧的数量,以及还可以大于一帧内包括的子帧的数量;或者可以是小于或者等于一帧包括的时隙(slot)的数量,以及还可以是大于slot的数量,对此本公开文本实施例不作限定。
另外,本公开文本实施例中,步骤201中的每个同步接入信号块可以理解为同步接入信号集合内的任意一同步接入信号块,即本公开文本实施例中,任意同步接入信号块均包括PSS、SSS和PBCH信号,且每个PBCH信号包括MIB,以及每个同步接入信号块内的MIB均会包括该同步接入信号块在同步接入信号集合中的序号。
其中,上述获取同步接入信号集合可以是网络侧设备生成的,或者网络侧设备接收其他设备发送的,对此本公开文本实施例不作限定。
步骤202、使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
在步骤202中的使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块可以是,不同的时间资源上使用不同的波束发送不同的同步接入信号块。
例如:同步接入信号集合包括序号分别为1、2、3、4和5的同步接入信号块,且网络侧设备包括序号分别为1、2、3、4和5的波束。从而步骤202就可以是在时间资源1上使用波束1发送同步接入信号块1,在时间资源2上使用波束2发送同步接入信号块2,此处不作一一列出。这样可以实现不同的同步接入信号块使用不同的波束发送,可以提高网络侧设备的覆盖范围。另外,由于不同的同步接入信号块使用不同的时间资源发送,这样方便用户终端进行时间同步,以提高时间同步精确度。
另外,本公开文本实施例中,同步接入信号也可以称作初始接入信号,即同步接入信号块又可以称作初始接入信号块,同步接入信号集合又可以称作初始接入信号集合。
需要说明的是,本公开文本实施例中使用的波束可以是毫米波波段的窄波束。另外,本公开文本实施例中可以应用于大规模多输入多输出(MIMO,Multiple-Input Multiple-Out-put)系统,也可以应用于全球移动通信系统(GSM,Global System for Mobile Communication)在毫米波波段应用的场景,以及还可以应用于码分多址(CDMA,Code Division Multiple Access)技术在毫米波波段应用的场景。且在GSM或者CDMA场景中本公开文本实施例中,不同的子载波还可以使用不同的波束,分别在不同的时间资源上发送所述多个同步接入信号块,从而实现波束扫描来扩大小区的覆盖。
上述方法可以应用于图1所示的网络结构中的网络侧设备。
这样,本公开文本实施例中,获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号
信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。这样可以实现让用户终端使用同步接入信号的序号信息进行时间同步,从而可以提高时间同步的精确度。
参见图3,图3是本公开文本一些实施例提供的另一种同步接入信号块的传输方法的流程图,如图3所示,包括以下步骤:
步骤301、生成同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号。
其中,同步接入信号集合可以参见基于图2描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
需要说明的是,步骤301生成同步接入信号集合,在本实施例中是可选地,即可以理解为生成同步接入信号集合是对获取同步接入信号集合的限定,从而本实施例中,步骤301可以是获取包括多个同步接入信号块的同步接入信号集合。
步骤302、使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
其中,步骤302的发送可以参见基于图2描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
作为一种可选的实施方式,本公开文本实施例中,所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:
通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号。
其中,上述预设位置可以是预设正交频分复用技术(Orthogonal Frequency Division Multiplexing,OFDM)符号。
由于PSS、SSS和PBCH信号使用预设位置发送,那么,用户终端就可以预先获取到PSS、SSS和PBCH信号使用预设位置,在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、
SSS和PBCH信号。例如:预设的OFDM符号,这样在接收到同步接入信号块时,就可以直接使用PSS、SSS和PBCH中至少一项使用的预设位置,进行时间同步,以提高时间同步的精确度和性能,例如:上述预设位置为预设OFDM符号时,就可以实现OFDM符号的同步,以进一步提高时间同步的精确度和性能。例如:用户终端可以同步接入信号块的序号信息和所述PSS、所述SSS和所述PBCH中至少一项的位置,进行时间同步,进行时间同步。即通过序号信息,可以实现时间资源在帧内的同步,而通过所述PSS、所述SSS和所述PBCH中至少一项使用的OFDM符号的位置,就可以确定时间资源内符号的同步。
且上述预设位置可以是网络侧设备预先配置给用户终端的,或者用户终端与网络侧设备预先协商好的,或者协议中预先定义的等,对此本公开文本实施例不作限定。
可选地,上述实施方式中,所述通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号,包括:
通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS;通过各个时间资源内的中间位置,发送与所述时间资源对应的同步接入信号块所包括的PBCH信号。
这样可以实现时间资源内起始和结束位置发送PSS和SSS,且均发送两次,从而用户终端就可以在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS;以及在各个时间资源内的中间位置,搜索与所述时间资源对应的同步接入信号块所包括的PBCH信号,之后,就可以精确地确定时间资源的起始和结束位置,以实现精确同步。另外,上述PBCH信号使用中间位置发送可以是在起始和结束位置之间的一个或者多个OFDM符号发送PBCH信号。
可选地,该实施方式中,所述通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS,包括:
通过各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,重
复发送与所述时间资源对应的同步接入信号块所包括的PSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;
或者,
通过各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS。
该实施方式中,通过第一个和第二OFDM符号,以及最后一个和倒数第二个OFDM符号发送PSS和SSS,这样可以实现用户终端可以在各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;或者,在各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS。用户终端在搜索到PSS和SSS就可以及时实现OFDM的同步,以解决一个子帧内的时间模糊问题。
作为一种可选的实施方式,本公开文本实施例中,所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:
在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块。
由于在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块,这样用户终端就可以在预设的初始发送时间,搜索所述同步接入信号集合中的第一个同步接入信号块。当用户终端获取的MIB包括的序号信息,就可以使用该序号信息和所述初始发送时间进行时间同步,以精确地确定各同步接入信号块的时间资源,以提高时间同步的精确度。
另外,需要说明的是,由于在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块,这样就可以极大地减少MIB的宝贵的
信令开销。提高了系统的整体性能。
可选地,该实施方式中,所述时间资源为子帧时,所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
其中,上述预设子帧可以是在帧内的位置是预先设置好的,例如:网络侧设备预先设置好并告诉用户终端的,或者网络侧设备与用户终端预先协商好的,或者协议中预先设置好的,如帧内的第一个子帧,或者帧内的第二子帧,或者帧内的最后一个子帧。从而用户终端通过MIB就可以确定上各子帧在帧内的位置,以提高同步时间的精确度。
同理,上述预设slot可以是在帧内的位置是预先设置好的,例如:网络侧设备预先设置好并告诉用户终端的,或者网络侧设备与用户终端预先协商好的,或者协议中预先设置好的,如帧内的第一个slot,或者帧内的第二slot,或者帧内的最后一个slot。从而用户终端通过MIB就可以确定接收到同步接入信号块slot在帧内的位置,以提高同步时间的精确度。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
由于所述初始发送时间为帧内的第一个子帧,或者初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot,这样用户终端在获取到MIB中的序号信息,就可以方便地、快捷地进行时间同步,以提高时间同步的效率。
需要说明的是,本公开文本实施例中,上述提供的在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块的实施方式,以及上述提供的通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号,这两种实施方式可以相互结合实现。
例如:所述初始发送时间为帧内的第一个子帧为例,同步接入信号集合(SS burst)的发送可以如图4所示,同步接入信号集合的第一个同步接入信号使用第一个子帧发送,该子帧发送的同步接入信号块(SS block)的序号为
1。且图4中示出了同步接入信号块内的传输示意,如图4所示,子帧内的第一个OFDM符号发送PSS,第二个OFDM符号发送SSS,第三至第九个OFDM符号发送数据(data),第十至第十二个发送PBCH信号,倒数第二个OFDM符号发送PSS,最近一个符号发送SSS。当然,图4中仅是一个同步接入信号块的示意,其余同步接入信号块都可以采用相同的实施方式。这样MIB的信息域就可以如表1所示:
表1:
其中,上述同步接入信号集合索引可以是同步接入信号块的序号信息。
这样用户终端接收到MIB信息后,可以通过系统帧号获得当前的帧序号信息,实现帧这一级的同步。而帧内当前的子帧的序号(subframe index)可以通过以下的计算获得:
subframe index=mod(SS block index,10)
即,同步接入信号集合索引除以10的余数就是当前子帧的序号,以实现子帧这一级的同步。而子帧内OFDM符号的同步,可以通过上述提供的PSS、SSS和PBCH信号使用预设OFDM符号发送的实施方式,让用户终端通过PSS、SSS和PBCH信号中至少一项使用的固定OFDM符号位置来确定,从而实现OFDM符号这一级的同步,进而在用户端实现了精确的同步。
例如:所述初始发送时间为帧内的第一个slot为例,同步接入信号集合的发送可以如图5(原图6)所示,同步接入信号集合的初始发送时间为第一个slot,该slot发送的同步接入信号块的序号为1。且一帧内slot0至slot11传输同步接入信号块,而slot12至slot19传输数据。且图5中示出了同步接入信号块内的传输示意,如图5所示,slot内的第一个OFDM符号发送PSS,第二个OFDM符号发送SSS,第三至第五个发送PBCH信号,倒数第二个
OFDM符号发送PSS,最近一个符号发送SSS。当然,图5中仅是一个同步接入信号块的示意,其余同步接入信号块都可以采用相同的实施方式。这样MIB的信息域就可以如表2所示:
表2:
这样用户终端收到MIB信息后,可以通过系统帧号(system Frame Number)获得当前的帧序号信息,实现帧这一级的同步。而帧内当前的slot的序号(slot index)可以通过以下的计算获得:
slot index=mod(SS block index,20)
即,同步接入信号集合索引(SS block index)除以20的余数就是当前slot的序号,以实现slot这一级的同步。且还可以根据子帧和slot之间的关系,当前子帧的序号可以通过如下方式得到:
subframe index=slot Index/2
以实现子帧这一级的同步。另外slot内OFDM符号的同步,可以通过上述提供的PSS、SSS和PBCH信号使用预设OFDM符号发送的实施方式,让用户终端通过PSS、SSS和PBCH信号中至少一项使用的固定OFDM符号位置来确定,从而实现OFDM符号这一级的同步,进而在用户端实现了精确的同步。
作为一种可选的实施方式,本公开文本实施例中,所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:
通过子帧内的预设slot,发送与所述子帧对应的同步接入信号块;
所述的方法,还包括:通过所述子帧内的其他slot传输数据。
这样可以实现各子帧只使用预设slot进行时间同步,其他slot传输数据,用户终端就在子帧内的预设slot,搜索与所述子帧对应的同步接入信号块;以
及在所述子帧内的其他slot,接收数据。这样可以实现传输数据和同步接入信号块的OFDM符号是连续的,这样用户终端在接收时不需要在接收数据和同步接入信号块之间进行频繁切换,从而较少了发送和接收的复杂度,提高用户终端的性能。
可选地,该实施方式中,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
同理,该实施方式中,可以与上述实施方式相互结合实现,这样可以让用户终端更为进行更加精确的时间同步,以提高时间同步性能。
例如:以同步接入信号集合内的初始发送时间为帧内第一个子帧为例,同步接入信号集合的发送可以如图6(原图8)所示,同步接入信号集合的第一个同步接入信号块为第一个子帧的第二个slot发送,该slot发送的同步接入信号块的序号为1。且图6中示出了同步接入信号块内的传输示意,如图6所示,子帧内的第一个slot传输数据,第二个slot内的第一个OFDM符号发送PSS,第二个OFDM符号发送SSS,第三至第五个发送PBCH信号,倒数第二个OFDM符号发送PSS,最近一个符号发送SSS。当然,图6中仅是一个同步接入信号块的示意,其余同步接入信号块都可以采用相同的实施方式。这样MIB的信息域就可以如表3所示:
表3:
这样用户终端收到MIB信息后,可以通过系统帧号(system Frame Number)获得当前的帧序号信息,实现帧这一级的同步。而帧内当前的子帧的序号可以通过以下的计算获得:
subframe index=mod(SS block index,10)
即,同步接入信号集合索引(SS block index)除以10的余数就是当前子
帧的序号,以实现子帧这一级的同步。而slot序号则可以通过子帧序号得到,因为传输同步接入信号块的slot为子帧内预设位置slot,例如:预设slot为子帧内的第二个slot,而用户终端计算到的当前子帧序号为1,那么,就可以确定当前slot的序号为1(第一个slot的序号为0)。另外slot内OFDM符号的同步,可以通过上述提供的PSS、SSS和PBCH信号使用预设OFDM符号发送的实施方式,让用户终端通过PSS、SSS和PBCH信号中至少一项使用的固定OFDM符号位置来确定,从而实现OFDM符号这一级的同步,进而在用户端实现了精确的同步。
又例如:以同步接入信号集合内的第一个同步接入信号块在帧内的任意位置发送为例,MIB包括同步接入信号块在同步接入信号集合的序号信息。如图7(原图9)所示,同步接入信号集合的第一个同步接入信号块为一帧第九个子帧的第二slot发送,而同步接入信号块的结构可以采用图6所示的结构。这样MIB的信息域就可以如表4所示:
表4:
其中,同步接入信号集合内的初始发送子帧索引可以理解为同步接入信号集合内的初始发送子帧在帧内的位置信息,即同步接入信号集合的第一个同步接入信号块使用的子帧的位置信息。
移动用户端收到MIB信息后,可以通过系统帧号(system Frame Number)r获得当前的帧序号信息,实现帧这一级的同步。而帧内当前的子帧的序号可以通过以下的计算获得:
subframe index=mod(SS block index+SS Burst starting subframe index,10)
即,同步接入信号集合索引(SS block index)加上同步接入信号集合内的初始发送子帧索引(SS Burst starting subframe index)除以10的余数就是当前子帧的序号,以实现子帧这一级的同步。而slot序号则可以通过子帧序号得到,因为传输同步接入信号块的slot为子帧内预设位置slot,例如:预设slot为子帧内的第二个slot,而用户终端计算到的当前子帧序号为1,那么,就可以确定当前slot的序号为1(第一个slot的序号为0)。另外slot内OFDM符号的同步,可以通过上述提供的PSS、SSS和PBCH信号使用预设OFDM符号发送的实施方式,让用户终端通过PSS、SSS和PBCH信号中至少一项使用的固定OFDM符号位置来确定,从而实现OFDM符号这一级的同步,进而在用户端实现了精确的同步。
作为一种可选的实施方式,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息。
该实施方式中,由于所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,这样用户终端就可以使用MIB包括的序号信息和所述位置信息进行时间同步,以提高时间同步的精确度。且上述第一个同步接入信号块的时间资源可以是任意位置,这样增加了时间同步的灵活性。
可选地,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
该实施方式中,上述位置信息为子帧或slot在帧内的序号,这样就方便用户终端计算接收到同步接入信号块的子帧或者slot的序号,以方便、快捷地实现时间同步。
需要说明的是,本公开文本实施例中,上述提供的MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息的实施方式,以及上述提供的通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号,这两种实施方式可以相互结合实现。
例如:以同步接入信号集合内的第一个同步接入信号块在帧内的任意位
置发送为例,即MIB包括对应的同步接入信号块在所述同步接入信号集合的序号信息。如图8(原图2)所示,同步接入信号集合的第一个同步接入信号块为一帧内的子帧9发送,而同步接入信号块的结构可以采用图4所示的结构。这样MIB的信息域就如表5所示:
表5:
其中,同步接入信号集合内的初始发送子帧索引可以理解为同步接入信号集合内的初始发送子帧在帧内的位置信息,即同步接入信号集合的第一个同步接入信号块使用的子帧的位置信息。
这样当用户终端接收到MIB信息后,可以通过系统帧号(system Frame Number)获得当前的帧序号信息。实现帧这一级的同步。而帧内当前的子帧的序号可以通过以下的计算获得:
subframe index=mod(SS block index+SS Burst starting subframe index,10)
即,同步接入信号集合索引(SS block index)加上同步接入信号集合内的初始发送子帧索引(SS Burst starting subframe index)除以10的余数就是当前子帧的序号。子帧内OFDM符号的同步可以通过PSS、SSS和PBCH信号中至少一项使用的预设OFDM符号位置来确定,从而实现OFDM符号这一级的同步,进而在用户端实现了精确的同步。
又例如:以同步接入信号集合内的第一个同步接入信号块在帧内的任意位置为例,MIB包括所述同步接入信号块在所述同步接入信号集合的序号信息。如图9(原图7)所示,同步接入信号集合的初始发送slot为一帧内的slot18,而同步接入信号块的结构可以采用图5所示的结构。这样MIB的信息域就如
表5所示:
表5:
其中,同步接入信号集合内的初始发送slot索引可以理解为同步接入信号集合内的初始发送slot在帧内的位置信息,即同步接入信号集合的第一个同步接入信号块使用的slot的位置信息。
这样用户终端收到MIB信息后,可以通过系统帧号(system Frame Number)获得当前的帧序号信息,实现帧这一级的同步。而帧内当前的slot的序号可以通过以下的计算获得:
slot index=mod(SS block index+SS Burst starting slot index,20)
即,同步接入信号集合索引(SS block index)加上同步接入信号集合内的初始发送slot索引(SS Burst starting slot index)除以20的余数就是当前slot的序号,以实现slot这一级的同步。
且还可以根据子帧和slot之间的关系,当前子帧的序号可以通过如下方式得到:
subframe index=slot Index/2
以实现子帧这一级的同步。而slot内OFDM符号的同步可以通过PSS、SSS和PBCH信号中至少一项使用的预设OFDM符号位置来确定,从而实现OFDM符号这一级的同步,进而在用户端实现了精确的同步。
参见图10,图10是本公开文本一些实施例提供的另一种同步接入信号块的传输方法的流程图,如图10所示,包括以下步骤:
步骤1001、在不同的时间资源上搜索同步接入信号集合中的不同的同步
接入信号块,所述同步接入信号集合中的每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号。
其中,步骤1001可以是用户终端在多个时间资源搜索不同的同步接入信号块,当搜索到同步接入信号块中的PSS或者SSS时,就确定该时间资源上传输有同步接入信号块,进而该时间资源上获取同步接入信号块的其他信息,例如:PBCH信号。另外,本实施例中,同步接入信号块可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同有益效果。
步骤1002、在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB。
其中,MIB可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同有益效果。
步骤1003、从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。
其中,关于时间同步可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:
在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号;
所述使用所述序号信息进行时间同步,包括:
使用所述序号信息,以及所述PSS、所述SSS和所述PBCH中至少一项的位置,进行时间同步。
其中,关于PSS、所述SSS和所述PBCH中至少一项的位置和相应的时间同步可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述在各个时间资源内的预设位置,分别搜索与所述时间资源
对应的同步接入信号块所包括的PSS、SSS和PBCH信号,包括:
在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS;在各个时间资源内的中间位置,搜索与所述时间资源对应的同步接入信号块所包括的PBCH信号。
其中,关于PSS、所述SSS和所述PBCH的位置可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS,包括:
在各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;
或者,
在各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS。
其中,关于PSS、所述SSS和所述PBCH的位置可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:
在预设的初始发送时间,搜索所述同步接入信号集合中的第一个同步接入信号块;
所述使用所述序号信息进行时间同步,包括:
使用所述序号信息和所述初始发送时间进行时间同步。
其中,初始发送时间和相应的时间同步可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的
有益效果。
可选地,所述时间资源为子帧时所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
其中,该实施方式的时间资源可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
其中,该实施方式的时间资源可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:
在子帧内的预设slot,搜索与所述子帧对应的同步接入信号块;
所述的方法,还包括:
在所述子帧内的其他slot,接收数据。
其中,该实施方式可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
其中,该实施方式可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息;
所述使用所述MIB包括的所述序号信息进行时间同步,包括:
使用所述MIB包括的所述序号信息和所述位置信息进行时间同步。
其中,该实施方式可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
可选地,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一
个同步接入信号块的子帧或slot在帧内的序号。
其中,该实施方式可以参见基于图2描述的实施例和基于图3-9描述的实施例的相应说明,此处不作赘述,且可以达到相同的有益效果。
本公开文本实施例中,在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。这样可以提高时间同步的精确度。
参见图11,图11是本公开文本实施提供的网络侧设备的结构图,能实现基于图2描述的实施例至基于图3-9描述的实施例中的同步接入信号块的传输方法的细节,并达到相同的效果。如图11所示,网络侧设备1100包括获取模块1101和发送模块1102,其中:
获取模块1101,用于获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;
发送模块1102,用于使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
可选地,发送模块1102,具体用于通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号。
可选地,发送模块1102,具体用于通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS;通过各个时间资源内的中间位置,发送与所述时间资源对应的同步接入信号块所包括的PBCH信号。
可选地,发送模块1102,具体用于通过各个时间资源内第一个正交频分
复用OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;
或者,
通过各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS。
可选地,发送模块1102,具体用于在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
可选地,发送模块1102,具体用于通过子帧内的预设slot,发送与所述子帧对应的同步接入信号块;
如图12所示,所述网络侧设备还包括:
数据传输模块1103,用于通过所述子帧内的其他slot传输数据。
可选地,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
可选地,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息。
可选地,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
本公开文本实施例中,获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信
号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。这样可以实现让用户终端使用同步接入信号的序号信息进行时间同步,从而可以提高时间同步的精确度。
进一步,通过预设位置发送PSS、SSS和PBCH信号,实现OFDM符号的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同子帧内发送多个同步接入信号块,以实现子帧的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同slot内发送多个同步接入信号块,以实现slot的同步,以进一步提高时间同步的精确度和性能,且由于只使用slot传输同步接入信号块,这样还可以减少传送时间时间,以提高通信效率,以提高系统的整体性能。
此处,还可以在同一子帧内一slot传输同步接入信号块,在另一slot内传输数据,这样用户终端在接收时不需要在接收数据和同步接入信号块之间进行频繁切换,从而较少了发送和接收的复杂度,提高用户终端的性能。
参见图13,图13是本公开文本一些实施提供的用户终端的结构图,能实现基于图10描述的实施例中的同步接入信号块的传输方法的细节,并达到相同的效果。如图13所示,用户终端1300包括:搜索模块1301、解调模块1302和同步模块1303,其中:
搜索模块1301,用于在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括号PSS、SSS和PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;
解调模块1302,用于在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;
同步模块1303,用于从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。
可选地,搜索模块1301,具体用于在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号;
所述同步模块1303,具体用于从解调得到的MIB中获取序号信息,并使用所述序号信息,以及所述PSS、所述SSS和所述PBCH中至少一项的位置,进行时间同步。
可选地,所述搜索模块1301,具体用于在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS;在各个时间资源内的中间位置,搜索与所述时间资源对应的同步接入信号块所包括的PBCH信号。
可选地,所述搜索模块1301,具体用于在各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;
或者,
在各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS。
可选地,所述搜索模块1301,具体用于在预设的初始发送时间,搜索所述同步接入信号集合中的第一个同步接入信号块;
所述同步模块1303,具体用于从解调得到的MIB中获取序号信息,并使用所述序号信息和所述初始发送时间进行时间同步。
可选地,所述时间资源为子帧时所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
可选地,所述搜索模块1301,具体用于在子帧内的预设slot,搜索与所
述子帧对应的同步接入信号块;
如图14所示,所述用户终端还包括:
数据接收模块1304,用于在所述子帧内的其他slot,接收数据。
可选地,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
可选地,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息;
所述同步模块1303,具体用于使用所述序号信息和所述位置信息进行时间同步。
可选地,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
本公开文本实施例中,在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。这样可以提高时间同步的精确度。
进一步,通过预设位置发送PSS、SSS和PBCH信号,实现OFDM符号的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同子帧内接收同步接入信号块,以实现子帧的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同slot内接收同步接入信号块,以实现slot的同步,以进一步提高时间同步的精确度和性能,且由于只使用slot传输同步接入信号块,这样还可以减少传送时间时间,以提高通信效率,以提高系统的整体性能。
此处,还可以在同一子帧内一slot接收同步接入信号块,在另一slot内
传输数据,这样用户终端在接收时不需要在接收数据和同步接入信号块之间进行频繁切换,从而较少了发送和接收的复杂度,提高用户终端的性能。
参见图15,图15是本公开文本一些实施例应用的网络侧设备的结构图,能够实现基于图2描述的实施例至基于图3-9描述的实施例的同步接入信号块的传输方法的细节,并达到相同的效果。如图15所示,该网络侧设备1500包括:处理器1501、收发机1502、存储器1503、用户接口1504和总线接口,其中:
处理器1501,用于读取存储器1503中的程序,执行下列过程:
获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;
使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
其中,收发机1502,用于在处理器1501的控制下接收和发送数据。
在图15中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1501代表的一个或多个处理器和存储器1503代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1502可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1504还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1501负责管理总线架构和通常的处理,存储器1503可以存储处理器1501在执行操作时所使用的数据。
可选地,处理器1501执行的所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:
通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号。
可选地,处理器1501执行的所述通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号,包括:
通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS;通过各个时间资源内的中间位置,发送与所述时间资源对应的同步接入信号块所包括的PBCH信号。
可选地,处理器1501执行的所述通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS,包括:
通过各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;
或者,
通过各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS。
可选地,处理器1501执行的所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:
在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
可选地,处理器1501执行的所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:通过子帧内的预设slot,发
送与所述子帧对应的同步接入信号块;
处理器1501还用于:
通过所述子帧内的其他slot传输数据。
可选地,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
可选地,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息。
可选地,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
本实施例中,获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。这样可以实现让用户终端使用同步接入信号的序号信息进行时间同步,从而可以提高时间同步的精确度。
进一步,通过预设位置发送PSS、SSS和PBCH信号,实现OFDM符号的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同子帧内发送多个同步接入信号块,以实现子帧的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同slot内发送多个同步接入信号块,以实现slot的同步,以进一步提高时间同步的精确度和性能,且由于只使用slot传输同步接入信号块,这样还可以减少传送时间时间,以提高通信效率,以提高系统的整体性能。
此处,还可以在同一子帧内一slot传输同步接入信号块,在另一slot内传输数据,这样用户终端在接收时不需要在接收数据和同步接入信号块之间进行频繁切换,从而较少了发送和接收的复杂度,提高用户终端的性能。
参见图16,图16是本公开文本实施例应用的用户终端的结构图,能够
实现基于图2描述的实施例至基于图3-9描述的实施例中的系统信息块传输方法的细节,并达到相同的效果。如图16所示,用户终端1600包括:至少一个处理器1601、存储器1602、至少一个网络接口1604和用户接口1603。用户终端1600中的各个组件通过总线系统1605耦合在一起。可理解,总线系统1605用于实现这些组件之间的连接通信。总线系统1605除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图16中将各种总线都标为总线系统1605。
其中,用户接口1603可以包括显示器、键盘或者点击设备(例如,鼠标,轨迹球(track ball)、触感板或者触摸屏等。
可以理解,本公开文本实施例中的存储器1602可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本文描述的系统和方法的存储器1602旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中,存储器1602存储了如下的元素,可执行模块或者数据结构,或者他们的子集,或者他们的扩展集:操作系统16021和应用程序16022。
其中,操作系统16021,包含各种系统程序,例如框架层、核心库层、驱动层等,用于实现各种基础业务以及处理基于硬件的任务。应用程序16022,
包含各种应用程序,例如媒体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本公开文本实施例方法的程序可以包含在应用程序16022中。
在本公开文本实施例中,通过调用存储器1602存储的程序或指令,具体的,可以是应用程序16022中存储的程序或指令,处理器1601用于:
在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;
在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;
从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。
上述本公开文本实施例揭示的方法可以应用于处理器1601中,或者由处理器1601实现。处理器1601可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器1601中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1601可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable GateArray,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开文本实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开文本实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1602,处理器1601读取存储器1602中的信息,结合其硬件完成上述方法的步骤。
可以理解的是,本文描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个
专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
对于软件实现,可通过执行本文所述功能的模块(例如过程、函数等)来实现本文所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
可选地,处理器1601执行的所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:
在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号;
处理器1601执行的使用所述序号信息进行时间同步,包括:
使用所述序号信息,以及所述PSS、所述SSS和所述PBCH中至少一项的位置,进行时间同步。
可选地,处理器1601执行的所述在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号,包括:
在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS;在各个时间资源内的中间位置,搜索与所述时间资源对应的同步接入信号块所包括的PBCH信号。
可选地,处理器1601执行的在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS,包括:
在各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;
或者,
在各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,搜索
与所述时间资源对应的同步接入信号块所包括的SSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS。
可选地,处理器1601执行的所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:
在预设的初始发送时间,搜索所述同步接入信号集合中的第一个同步接入信号块;
处理器1601执行的使用所述序号信息进行时间同步,包括:
使用所述序号信息和所述初始发送时间进行时间同步。
可选地,所述时间资源为子帧时所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
可选地,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
可选地,处理器1601执行的所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:
在子帧内的预设slot,搜索与所述子帧对应的同步接入信号块;
处理器1601还用于:
在所述子帧内的其他slot,接收数据。
可选地,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
可选地,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息;
处理器1601执行的所述使用所述MIB包括的所述序号信息进行时间同步,包括:
使用所述MIB包括的所述序号信息和所述位置信息进行时间同步。
可选地,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
本实施例中,在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括PSS、SSS和PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。这样可以提高时间同步的精确度。
进一步,通过预设位置符号发送PSS、SSS和PBCH信号,实现OFDM符号的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同子帧内接收同步接入信号块,以实现子帧的同步,以进一步提高时间同步的精确度和性能。
以及还可以在不同slot内接收同步接入信号块,以实现slot的同步,以进一步提高时间同步的精确度和性能,且由于只使用slot传输同步接入信号块,这样还可以减少传送时间时间,以提高通信效率,以提高系统的整体性能。
此处,还可以在同一子帧内一slot接收同步接入信号块,在另一slot内传输数据,这样用户终端在接收时不需要在接收数据和同步接入信号块之间进行频繁切换,从而较少了发送和接收的复杂度,提高用户终端的性能。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开文本的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例
如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本公开文本实施例方案的目的。
另外,在本公开文本各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开文本的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开文本各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本公开文本的具体实施方式,但本公开文本的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开文本揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开文本的保护范围之内。因此,本公开文本的保护范围应以权利要求的保护范围为准。
Claims (48)
- 一种同步接入信号块的传输方法,包括:获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
- 根据权利要求1所述的方法,其中,所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号。
- 根据权利要求2所述的方法,其中,所述通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号,包括:通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS;通过各个时间资源内的中间位置,发送与所述时间资源对应的同步接入信号块所包括的PBCH信号。
- 根据权利要求3所述的方法,其中,所述通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS,包括:通过各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;或者,通过各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,重 复发送与所述时间资源对应的同步接入信号块所包括的SSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS。
- 根据权利要求1所述的方法,其中,所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块。
- 根据权利要求5所述的方法,其中,所述时间资源为子帧时,所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
- 根据权利要求6所述的方法,其中,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
- 根据权利要求1所述的方法,其中,所述分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块,包括:通过子帧内的预设slot,发送与所述子帧对应的同步接入信号块;所述的方法,还包括:通过所述子帧内的其他slot传输数据。
- 根据权利要求8所述的方法,其中,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
- 根据权利要求1所述的方法,其中,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息。
- 根据权利要求10所述的方法,其中,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
- 一种同步接入信号块的传输方法,包括:在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,每个PBCH信号包括主信息块MIB, 所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。
- 根据权利要求12所述的方法,其中,所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号;所述使用所述序号信息进行时间同步,包括:使用所述序号信息,以及所述PSS、所述SSS和所述PBCH中至少一项的位置,进行时间同步。
- 根据权利要求13所述的方法,其中,所述在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号,包括:在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS;在各个时间资源内的中间位置,搜索与所述时间资源对应的同步接入信号块所包括的PBCH信号。
- 根据权利要求14所述的方法,其中,所述在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS,包括:在各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;或者,在各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步 接入信号块所包括的PSS。
- 根据权利要求12所述的方法,其中,所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:在预设的初始发送时间,搜索所述同步接入信号集合中的第一个同步接入信号块;所述使用所述序号信息进行时间同步,包括:使用所述序号信息和所述初始发送时间进行时间同步。
- 根据权利要求16所述的方法,其中,所述时间资源为子帧时所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
- 根据权利要求17所述的方法,其中,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
- 根据权利要求12所述的方法,其中,所述在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,包括:在子帧内的预设slot,搜索与所述子帧对应的同步接入信号块;所述的方法,还包括:在所述子帧内的其他slot,接收数据。
- 根据权利要求19所述的方法,其中,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
- 根据权利要求12所述的方法,其中,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息;所述使用所述序号信息进行时间同步,包括:使用所述序号信息和所述位置信息进行时间同步。
- 根据权利要求21所述的方法,其中,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
- 一种网络侧设备,包括:获取模块,用于获取同步接入信号集合,所述同步接入信号集合包括多个同步接入信号块,每个同步接入信号块包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在所述同步接入信号集合中的序号;发送模块,用于使用不同的波束,分别在不同的时间资源上发送所述同步接入信号集合中的不同的同步接入信号块。
- 根据权利要求23所述的网络侧设备,其中,所述发送模块,具体用于通过各个时间资源内的预设位置,分别发送与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号。
- 根据权利要求24所述的网络侧设备,其中,所述发送模块,具体用于通过各个时间资源内的起始位置和结束位置,两次发送与所述时间资源对应的同步接入信号块所包括的PSS和SSS;通过各个时间资源内的中间位置,发送与所述时间资源对应的同步接入信号块所包括的PBCH信号。
- 根据权利要求25所述的网络侧设备,其中,所述发送模块,具体用于通过各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;或者,通过各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的SSS;通过各个时间资源内第二个OFDM符号和最后一个OFDM符号,重复发送与所述时间资源对应的同步接入信号块所包括的PSS。
- 根据权利要求23所述的网络侧设备,其中,所述发送模块,具体用于在预设的初始发送时间,发送所述同步接入信号集合中的第一个同步接入信号块。
- 根据权利要求27所述的网络侧设备,其中,所述时间资源为子帧时,所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
- 根据权利要求28所述的网络侧设备,其中,所述时间资源为子帧时,所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
- 如权利要求23所述的网络侧设备,其中,所述发送模块,具体用于通过子帧内的预设slot,发送与所述子帧对应的同步接入信号块;所述网络侧设备还包括:数据传输模块,用于通过所述子帧内的其他slot传输数据。
- 根据权利要求30所述的网络侧设备,其中,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
- 根据权利要求31所述的网络侧设备,其中,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息。
- 根据权利要求32所述的网络侧设备,其中,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
- 一种用户终端,包括:搜索模块,用于在不同的时间资源上搜索同步接入信号集合中的不同的同步接入信号块,所述同步接入信号集合中的每个同步接入信号块包括主同步信号PSS、次同步信号SSS和物理广播信道PBCH信号,每个PBCH信号包括主信息块MIB,所述MIB包括序号信息,所述序号信息用于表示所述MIB所在的同步接入信号块在同步接入信号集合中的序号;解调模块,用于在搜索到所述同步接入信号集合中的同步接入信号块时,对搜索到的同步接入信号块中的PBCH信号解调,得到MIB;同步模块,用于从解调得到的MIB中获取序号信息,并使用所述序号信息进行时间同步。
- 根据权利要求34所述的用户终端,其中,所述搜索模块,具体用于在各个时间资源内的预设位置,分别搜索与所述时间资源对应的同步接入信号块所包括的PSS、SSS和PBCH信号;所述同步模块,具体用于从解调得到的MIB中获取序号信息,并使用所述序号信息,以及所述PSS、所述SSS和所述PBCH中至少一项的位置,进行时间同步。
- 根据权利要求35所述的用户终端,其中,所述搜索模块,具体用于在各个时间资源内的起始位置和结束位置,搜索与所述时间资源对应的同步接入信号块所包括的PSS和SSS;在各个时间资源内的中间位置,搜索与所述时间资源对应的同步接入信号块所包括的PBCH信号。
- 根据权利要求36所述的用户终端,其中,所述搜索模块,具体用于在各个时间资源内第一个正交频分复用OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;或者,在各个时间资源内第一个OFDM符号和倒数第二个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的SSS;在各个时间资源内第二个OFDM符号和最后一个OFDM符号,搜索与所述时间资源对应的同步接入信号块所包括的PSS。
- 根据权利要求34所述的用户终端,其中,所述搜索模块,具体用于在预设的初始发送时间,搜索所述同步接入信号集合中的第一个同步接入信号块;所述同步模块,具体用于从解调得到的MIB中获取序号信息,并使用所述序号信息和所述初始发送时间进行时间同步。
- 根据权利要求38所述的用户终端,其中,所述时间资源为子帧时所述初始发送时间为帧内的预设子帧;所述时间资源为时隙slot时,所述初始发送时间为帧内的预设slot。
- 根据权利要求39所述的用户终端,其中,所述时间资源为子帧时, 所述初始发送时间为帧内的第一个子帧;所述时间资源为slot时,所述初始发送时间为帧内的第一个slot或者帧内的第一个子帧中的slot。
- 如权利要求40所述的用户终端,其中,所述搜索模块,具体用于在子帧内的预设slot,搜索与所述子帧对应的同步接入信号块;所述用户终端还包括:数据接收模块,用于在所述子帧内的其他slot,接收数据。
- 根据权利要求41所述的用户终端,其中,所述子帧内的预设slot为所述子帧内的第一个slot或者第二个slot。
- 根据权利要求34所述的用户终端,其中,所述MIB包括用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息;所述同步模块,具体用于使用所述序号信息和所述位置信息进行时间同步。
- 根据权利要求43所述的用户终端,其中,所述用于发送所述同步接入信号集合中的第一个同步接入信号块的时间资源的位置信息,具体为用于发送所述同步接入信号集合中的第一个同步接入信号块的子帧或slot在帧内的序号。
- 一种同步接入信号块的传输系统,包括如权利要求23至33中任一项所述网络侧设备和如权利要求34至44中任一项所述用户终端。
- 一种网络侧设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如权利要求1至11中任一项所述的同步接入信号块的传输方法的步骤。
- 一种用户终端,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如权利要求12至22中任一项所述的同步接入信号块的传输方法的步骤。
- 一种同步接入信号块的传输系统,包括如权利要求46所述网络侧设备和如权利要求47所述用户终端。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611243970.XA CN108260181B (zh) | 2016-12-29 | 2016-12-29 | 一种同步接入信号块的传输方法、网络侧设备和用户终端 |
CN201611243970.X | 2016-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018120833A1 true WO2018120833A1 (zh) | 2018-07-05 |
Family
ID=62707841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2017/095248 WO2018120833A1 (zh) | 2016-12-29 | 2017-07-31 | 一种同步接入信号块的传输方法、网络侧设备和用户终端 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN108260181B (zh) |
WO (1) | WO2018120833A1 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110830402B (zh) * | 2018-08-09 | 2022-05-27 | 大唐移动通信设备有限公司 | 一种同步广播信息的发送、检测方法及装置 |
CN111107628A (zh) * | 2018-10-25 | 2020-05-05 | 普天信息技术有限公司 | 一种数据传输方法及装置 |
CN111147405B (zh) * | 2018-11-02 | 2022-03-29 | 大唐移动通信设备有限公司 | 一种信号的发送方法及终端 |
CN111181663A (zh) * | 2018-11-09 | 2020-05-19 | 普天信息技术有限公司 | 非授权频谱上的快速初始接入方法和装置 |
CN111294174B (zh) * | 2019-01-11 | 2023-02-17 | 展讯通信(上海)有限公司 | 同步信号块的发送、接收方法及装置、存储介质、基站、用户终端 |
CN111526578B (zh) | 2019-02-03 | 2021-06-22 | 华为技术有限公司 | 一种传输同步信号的方法及终端设备 |
CN111294950B (zh) * | 2019-07-25 | 2023-04-07 | 北京紫光展锐通信技术有限公司 | 同步信号块的发送、时隙位置确定方法及装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015025838A1 (ja) * | 2013-08-20 | 2015-02-26 | 株式会社Nttドコモ | 同期信号送信方法及び基地局装置 |
CN105723639A (zh) * | 2013-11-27 | 2016-06-29 | 瑞典爱立信有限公司 | 用于分别发送和检测同步信号和相关联的信息的网络节点、无线设备及其中的方法 |
WO2016203312A2 (en) * | 2015-06-15 | 2016-12-22 | Alcatel Lucent | Methods and apparatuses for cell searching in an mmc network |
CN106455040A (zh) * | 2016-11-30 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | 一种传输信息的方法、基站及终端 |
CN106507439A (zh) * | 2016-10-28 | 2017-03-15 | 宇龙计算机通信科技(深圳)有限公司 | 一种传输信息的方法、基站及终端 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103906139B (zh) * | 2012-12-27 | 2018-10-30 | 夏普株式会社 | 系统信息的发送和接收方法以及基站和用户设备 |
-
2016
- 2016-12-29 CN CN201611243970.XA patent/CN108260181B/zh active Active
-
2017
- 2017-07-31 WO PCT/CN2017/095248 patent/WO2018120833A1/zh active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015025838A1 (ja) * | 2013-08-20 | 2015-02-26 | 株式会社Nttドコモ | 同期信号送信方法及び基地局装置 |
CN105723639A (zh) * | 2013-11-27 | 2016-06-29 | 瑞典爱立信有限公司 | 用于分别发送和检测同步信号和相关联的信息的网络节点、无线设备及其中的方法 |
WO2016203312A2 (en) * | 2015-06-15 | 2016-12-22 | Alcatel Lucent | Methods and apparatuses for cell searching in an mmc network |
CN106507439A (zh) * | 2016-10-28 | 2017-03-15 | 宇龙计算机通信科技(深圳)有限公司 | 一种传输信息的方法、基站及终端 |
CN106455040A (zh) * | 2016-11-30 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | 一种传输信息的方法、基站及终端 |
Also Published As
Publication number | Publication date |
---|---|
CN108260181B (zh) | 2020-08-11 |
CN108260181A (zh) | 2018-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018120833A1 (zh) | 一种同步接入信号块的传输方法、网络侧设备和用户终端 | |
JP7160501B2 (ja) | 測位基準信号設定方法、受信方法及び機器 | |
US11665656B2 (en) | Information transmission method and information transmission apparatus | |
WO2019029383A1 (zh) | Pdcch的搜索空间的配置、监听方法及设备 | |
WO2020001532A1 (zh) | 定位参考信号配置方法、网络侧设备和终端设备 | |
WO2016161977A1 (zh) | 载波聚合中的pucch资源配置方法及其设备 | |
JP6740367B2 (ja) | システム情報の伝送方法、基地局及び端末 | |
WO2018233522A1 (zh) | SS block的搜索方法、相关设备和系统 | |
WO2019080120A1 (zh) | 无线通信方法和设备 | |
WO2019019868A1 (zh) | 物理广播信道的dmrs传输方法、网络设备及终端 | |
US20180337760A1 (en) | Pilot signal sending method, channel estimation method, and device | |
CN108809877B (zh) | 一种解调参考信号的传输方法、装置、基站及终端 | |
WO2021218497A1 (zh) | 确定方法、装置、通信节点及存储介质 | |
WO2018130093A1 (zh) | 同步接入信号组的发送方法、接收方法、相关设备及系统 | |
JP2022532351A (ja) | D2dシステムにおける通信方法及び端末装置、ネットワーク装置 | |
WO2018095068A1 (zh) | 一种同步接入信号组的传输方法、设备和系统 | |
CN109120390B (zh) | SS block的接收方法、发送方法、相关设备和系统 | |
RU2742601C1 (ru) | Способ осуществления беспроводной связи, сетевое устройство и терминальное устройство | |
WO2015039626A1 (zh) | 一种发送和接收数据的方法、系统及设备 | |
JP7306568B2 (ja) | 通信方法 | |
WO2018171469A1 (zh) | 同步接入信号组的发送方法、接收方法、相关设备和系统 | |
CN113302867B (zh) | 用于多种参数集的公共信号结构 | |
WO2018145531A1 (zh) | 同步接入信号组的发送方法、接收方法、相关设备及系统 | |
US20240243961A1 (en) | Information transmission method and communication apparatus | |
WO2018000318A1 (zh) | 同步信号的传输装置、方法以及多天线通信系统 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17886738 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 17886738 Country of ref document: EP Kind code of ref document: A1 |