WO2024168552A1 - 物理广播信道pbch传输方法、装置、设备及存储介质 - Google Patents

物理广播信道pbch传输方法、装置、设备及存储介质 Download PDF

Info

Publication number
WO2024168552A1
WO2024168552A1 PCT/CN2023/076027 CN2023076027W WO2024168552A1 WO 2024168552 A1 WO2024168552 A1 WO 2024168552A1 CN 2023076027 W CN2023076027 W CN 2023076027W WO 2024168552 A1 WO2024168552 A1 WO 2024168552A1
Authority
WO
WIPO (PCT)
Prior art keywords
ssb
pbch
bandwidth
bits
pbch payload
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/076027
Other languages
English (en)
French (fr)
Inventor
乔雪梅
牟勤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to EP23921720.1A priority Critical patent/EP4668989A4/en
Priority to CN202380008257.9A priority patent/CN116349375B/zh
Priority to PCT/CN2023/076027 priority patent/WO2024168552A1/zh
Publication of WO2024168552A1 publication Critical patent/WO2024168552A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a physical broadcast channel (PBCH) transmission method, device, equipment and storage medium.
  • PBCH physical broadcast channel
  • the physical broadcast channel is the first channel that the user equipment (UE) needs to decode after completing the detection of the primary and secondary synchronization signals.
  • the PBCH and the demodulation reference signal (DMRS) are contained in the synchronization and physical broadcast channel block (SSB).
  • the content of the PBCH is part of the minimum system information required by the UE to access the new radio (NR) wireless network system, including the master information block (MIB) and other information related to the SSB transmission time.
  • MIB master information block
  • PBCH In the related technology, in the NR system, PBCH usually occupies 20 resource blocks (RB) for transmission, while the frequency resources of the private network system are limited. It is necessary to consider how to improve the transmission performance of PBCH under the condition of limited frequency resources.
  • RB resource blocks
  • the embodiments of the present disclosure provide a physical broadcast channel (PBCH) transmission method, apparatus, device, chip system, storage medium, computer program and computer program product, which can be applied in the field of communication technology and can effectively improve the transmission performance of PBCH when frequency resources are limited.
  • PBCH physical broadcast channel
  • an embodiment of the present disclosure provides a physical broadcast channel (PBCH) transmission method, which is executed by a network device.
  • the method includes: based on a system spectrum smaller than a first bandwidth, transmitting a physical broadcast channel (PBCH) payload of each synchronization signal and a physical broadcast channel (PBCH) block (SSB) to a terminal device.
  • PBCH physical broadcast channel
  • SSB physical broadcast channel
  • an embodiment of the present disclosure provides a physical broadcast channel (PBCH) transmission method, which is executed by a terminal device.
  • the method includes: based on a system spectrum smaller than a first bandwidth, receiving a physical broadcast channel (PBCH) payload of each synchronization signal and a physical broadcast channel (PBCH) block (SSB) transmitted by a network device.
  • PBCH physical broadcast channel
  • SSB physical broadcast channel
  • an embodiment of the present disclosure provides a communication device, which has some or all of the functions of the network device in the method of the first aspect above.
  • the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone.
  • the functions may be implemented by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory
  • the physical broadcast channel PBCH transmission method of the first aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory
  • the physical broadcast channel PBCH transmission method of the second aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the physical broadcast channel PBCH transmission method of the first aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the physical broadcast channel PBCH transmission method of the second aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the physical broadcast channel PBCH transmission method of the first aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the physical broadcast channel PBCH transmission method of the second aspect mentioned above.
  • an embodiment of the present disclosure provides a communication system, which includes the communication device of the third aspect and the communication device of the fourth aspect, or the system includes the communication device of the fifth aspect and the communication device of the sixth aspect, or the system includes the communication device of the seventh aspect and the communication device of the eighth aspect, or the system includes the communication device of the ninth aspect and the communication device of the tenth aspect.
  • an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions used by the above-mentioned network device.
  • the network device executes the physical broadcast channel PBCH transmission method of the above-mentioned first aspect.
  • an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions used by the above-mentioned terminal device.
  • the terminal device executes the physical broadcast channel PBCH transmission method of the above-mentioned second aspect.
  • the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the physical broadcast channel PBCH transmission method of the first aspect.
  • the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the physical broadcast channel PBCH transmission method of the second aspect described above.
  • the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a network device to implement the functions involved in the first aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the network device.
  • the chip system can be composed of chips or include chips and other discrete devices.
  • the present disclosure provides a chip system, the chip system comprising at least one processor and an interface for supporting a terminal device.
  • the device is equipped to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the terminal device.
  • the chip system can be composed of a chip or include a chip and other discrete devices.
  • the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the physical broadcast channel (PBCH) transmission method of the first aspect.
  • PBCH physical broadcast channel
  • the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the physical broadcast channel PBCH transmission method of the second aspect.
  • the physical broadcast channel PBCH transmission method, apparatus, device, chip system, storage medium, computer program and computer program product provided in the embodiments of the present disclosure can achieve the following technical effects:
  • the network device transmits each synchronization signal and the physical broadcast channel PBCH payload of the physical broadcast channel PBCH block SSB to the terminal device based on the system spectrum smaller than the first bandwidth, which can effectively improve the transmission performance of the PBCH when frequency resources are limited.
  • FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of a flow chart of a physical broadcast channel PBCH transmission method provided by an embodiment of the present disclosure
  • FIG3 is a flow chart of another physical broadcast channel PBCH transmission method provided by an embodiment of the present disclosure.
  • FIG4 is a flow chart of another physical broadcast channel PBCH transmission method provided by an embodiment of the present disclosure.
  • FIG5 is a schematic flow chart of another physical broadcast channel PBCH transmission method provided by an embodiment of the present disclosure.
  • FIG6 is a schematic diagram of a flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure.
  • FIG7 is a schematic flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure.
  • FIG8 is a schematic flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure.
  • FIG9 is a flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure.
  • FIG10 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG11 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of the structure of a chip according to an embodiment of the present disclosure.
  • first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein may be interpreted as “at” or "when” or "in response to determination”.
  • PBCH Physical broadcast channel
  • Control resource set (CORESET).
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and form of devices shown in FIG. 1 are only used as examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included.
  • the communication system shown in FIG. 1 includes, for example, a network device 101 and a terminal device 102.
  • LTE long term evolution
  • 5G fifth generation
  • NR 5G new radio
  • the network device may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of a network device, such as a base station, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU.
  • the terminal device 102 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal device may also be referred to as a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • the terminal device may be a car with communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), etc.
  • Wireless terminal devices in equipment, self-driving, remote medical surgery, smart grid, transportation safety, smart city, smart home, etc.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • Figure 2 is a flow chart of a physical broadcast channel PBCH transmission method provided by an embodiment of the present disclosure, which is executed by a network device.
  • the physical broadcast channel PBCH transmission method in this embodiment can be applied to a network device, without limitation.
  • the method may include but is not limited to the following steps:
  • S201 Transmit each synchronization signal and a physical broadcast channel PBCH payload of a physical broadcast channel PBCH block SSB to a terminal device based on a system spectrum smaller than a first bandwidth.
  • the first bandwidth may refer to the bandwidth of a system with limited frequency resources.
  • the first bandwidth may be, for example, a bandwidth capable of providing communication services for a private network system, such as a system that provides communication services for special services such as power systems, railway systems, public protection and disaster relief.
  • the first bandwidth may be, for example, 5 megahertz (MHz).
  • the first bandwidth may also be any other possible bandwidth value, without limitation.
  • some dedicated spectrum may support NR technology
  • some dedicated spectrum usually provides communication services for the above-mentioned private network system.
  • the aforementioned dedicated spectrum only supports 15 kilo hertz (KHz) subcarrier spacing, and the supported system bandwidth includes 5MHz and 3MHz.
  • KHz kilo hertz
  • LTE long-term evolution
  • the number of available RBs for 5MHz is 25, and according to the provisions of LTE on the RF channel bandwidth, the number of available RBs for 3MHz is 15.
  • PBCH In the NR system, PBCH usually occupies 20 RBs for transmission, while the frequency resources of the private network system (i.e., 3MHz (15 RBs) and 2.8MHz ⁇ 3.6MHz) are limited. Therefore, it is necessary to consider how to improve the transmission performance of PBCH under the condition of limited frequency resources.
  • each synchronization signal and physical broadcast channel PBCH payload of the physical broadcast channel PBCH block SSB can be transmitted to the terminal device based on a system spectrum smaller than the first bandwidth, thereby effectively improving the transmission performance of the PBCH when frequency resources are limited.
  • the network device transmits each synchronization signal and the physical broadcast channel PBCH payload of the physical broadcast channel PBCH block SSB to the terminal device, which can be transmitted based on a system spectrum smaller than the first bandwidth.
  • the PBCH payload of each SSB in the SSB burst set can be transmitted with a system spectrum smaller than 5 MHz.
  • the transmission performance of the PBCH can be effectively improved when frequency resources are limited.
  • the first bandwidth is 5 MHz, so as to achieve the purpose of providing the terminal device with a system spectrum less than 5 MHz. Transmit the PBCH payload for each SSB.
  • the bandwidth of the system spectrum may also be at least one of 3 MHz, 2.8 MHz, 3.6 MHz, and a bandwidth value between 2.8 MHz and 3.6 MHz, without limitation.
  • the PBCH payload may not carry common subcarrier spacing subCarrierSpacingCommon, spare spare, message extension spare messageClassExtension, parameter parameter And one or more items in the SSB index information, thereby being able to effectively maintain a low code rate when frequency resources are limited, thereby greatly improving the transmission performance of PBCH.
  • the embodiment of the present disclosure supports trimming the PBCH payload of each SSB, and the trimmed PBCH payload (PBCH payload size) does not carry the common subcarrier spacing subCarrierSpacingCommon, spare spare, message extension spare messageClassExtension, parameter parameter and one or more items of SSB index information.
  • the subCarrierSpacingCommon field in the MIB can be deleted.
  • the subCarrierSpacingCommon field is used to indicate the subcarrier spacing used for the initial access message and system messages (such as Msg2), etc.; you can also consider removing the spare field and the message extension spare messageClassExtension field (1 bit) to minimize the PBCH payload.
  • the bits provided by the physical layer in the PBCH payload may be trimmed to further reduce the PBCH payload.
  • the two lowest reserved bits provided by the physical layer in the PBCH payload can also be removed. Since some dedicated spectrums (n8, n26, n28, n100) are spectrums less than 3 GHZ, there are at most 4 SSB indexes in their SSB time domain position distribution. Therefore, the SSB index information is carried in the demodulation reference signal sequence (DMRS sequence).
  • DMRS sequence demodulation reference signal sequence
  • the PBCH payload does not contain the SSB index information. Therefore, the reserved bit parameter provided by the physical layer can be and/or parameters delete.
  • the PBCH payload may include an SSB subcarrier offset indication, wherein the SSB subcarrier offset indication is configured by ssb-SubcarrierOffset, and the configuration parameters of the SSB subcarrier offset indication do not include the parameter
  • the dedicated spectrum usually only supports 15KHZ SCS
  • the PBCH payload also includes a parameter pdcch-ConfigSIB1; wherein the parameter pdcch-ConfigSIB1 does not include the 4 most significant bits MSB controlResourceSetZero, and CORESET#0 associated with SSB uses A fixed time-frequency domain bandwidth is used to flexibly reduce the PBCH payload.
  • the parameter pdcch-ConfigSIB1 can be used to configure the control resource set and monitoring timing of Type0-PDDCH common search space.
  • CORESET#0 refers to the abbreviation of the control resource set (control resource set, CORESET) of Type0-PDDCH CSS in the protocol specification.
  • Type0-PDDCH CSS is a type of common search space (CSS).
  • the time-frequency resource information of CORESET0 can be determined by looking up the 4 most significant bits (MSB) controlResourceSetZero field in Pdcch-ConfigSIB1.
  • the SSB may carry configuration information of the associated CORESET#0 and the monitoring timing of Type0-PDDCH CSS.
  • CORESET#0 for the configuration of CORESET#0, a possible implementation is to use a fixed CORESET#0 time-frequency domain bandwidth, for example, CORESET#0 is fixedly configured to use ⁇ 3 OFDM symbols, full bandwidth ⁇ . Therefore, it is possible to consider removing the upper four bits of PDCCH-ConfigSIB1, that is, making the parameter pdcch-ConfigSIB1 not carry the 4 highest bits MSB controlResourceSetZero.
  • the PBCH payload may further include a parameter controlResourceSetZero
  • the parameter controlResourceSetZero includes only at least one of the following: N least significant bits (LSB), wherein the N least significant bits LSB are used to indicate the configuration parameters of the first n rows in the CORESET#0 configuration table, N is less than 4, n is less than or equal to 8, and N and n are both positive integers; M bits, wherein the M bits are used to indicate the number of symbols occupied by CORESET#0, M is less than 4, and M is a positive integer, thereby effectively reducing the bits occupied by the parameter controlResourceSetZero in the PBCH payload, so as to flexibly reduce the PBCH payload.
  • N least significant bits LSB
  • M bits wherein the M bits are used to indicate the number of symbols occupied by CORESET#0, M is less than 4, and M is a positive integer
  • CORESET#0 occupies the entire frequency domain channel bandwidth, and there is no limitation on this.
  • the parameter controlResourceSetZero in the PBCH payload may include only N LSBs, where the N least significant bits LSBs are used to indicate the configuration parameters of the first n rows in the CORESET#0 configuration table, where N is less than 4, n is less than or equal to 8, and N and n are both positive integers; or, the parameter controlResourceSetZero in the PBCH payload may include only M bits, where M bits are used to indicate the number of symbols occupied by CORESET#0, where M is less than 4, and CORESET#0 occupies the entire frequency domain channel bandwidth, and M is a positive integer, with no restriction on this.
  • the N least significant bits LSB are used to indicate the configuration parameters of the first n rows in the CORESET#0 configuration table, N is less than 4, and n is less than or equal to 8.
  • N can be 3, and n can be 8, then the 3 least significant bits LSB are used to indicate the configuration parameters of the first 8 rows in the CORESET#0 configuration table; of course, N can also be any positive integer less than 4, n can be any positive integer less than or equal to 8, and M can also be any positive integer less than 4, without limitation.
  • the length of the cyclic redundancy check (CRC) bit corresponding to the PBCH payload can also be further trimmed, wherein the number of CRC bits of the PBCH transmitted by the dedicated spectrum system less than 5MHz is one of 16 bits, 19 bits, and 21 bits, thereby effectively reducing the number of bits occupied by the CRC and realizing flexible reduction of the PBCH payload.
  • an implementation method for effectively reducing the PBCH payload can be flexibly selected to effectively maintain a low code rate when frequency resources are limited, thereby greatly improving the transmission performance of the PBCH and minimizing the system resource overhead used for periodic broadcasting of the PBCH.
  • Fig. 3 is a flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure, and the method is executed by a network device.
  • the physical broadcast channel PBCH transmission method in this embodiment can be applied to a network device, and there is no limitation on this.
  • the method may include but is not limited to the following steps:
  • S301 Encode the PBCH payload to obtain an encoded bit sequence.
  • polarization coding may be performed on the PBCH payload, and a bit sequence obtained by polarization coding may be referred to as a coded bit sequence, which is not limited.
  • S302 Perform rate matching on the encoded bit sequence based on the system bandwidth, and map the encoded bit sequence to the bandwidth of the system spectrum to obtain mapped orthogonal frequency division multiplexing OFDM symbols, wherein the system spectrum is smaller than the first bandwidth.
  • the coded bits are mapped to a system bandwidth of 3 MHz (or a system bandwidth less than or equal to 3 MHz (including 15 RBs or 16 RBs)) by rate matching, and there is no restriction on this.
  • the method may include but is not limited to the following steps:
  • polarization coding may be performed on the PBCH payload, and a bit sequence obtained by polarization coding may be referred to as a coded bit sequence, which is not limited.
  • S402 Perform rate matching and resource mapping on the encoded bit sequence based on the original SSB time-frequency resource structure to map to obtain OFDM symbols on physical resources.
  • the SSB time-frequency resource structure is used to describe the time-frequency resource distribution of SSB.
  • the encoded bit sequence can be rate matched and resource mapped based on the SSB time-frequency resource structure.
  • the OFDM symbols on the physical resources are obtained by mapping.
  • S403 reserve some OFDM symbols on the physical resources that do not exceed the bandwidth of the system spectrum, wherein the system spectrum is smaller than the first bandwidth.
  • the OFDM symbols on the physical resources may contain OFDM symbols that exceed the bandwidth of the system spectrum.
  • the OFDM symbols that exceed the bandwidth of the system spectrum can be deleted, and some OFDM symbols on the physical resources that do not exceed the bandwidth of the system spectrum are retained, and then S404 is executed.
  • S404 Transmit some OFDM symbols to the terminal device.
  • partial OFDM symbols that do not exceed the bandwidth of the system spectrum may be transmitted to the terminal device based on the system spectrum, without limitation.
  • the coded bits are an optional example of a coded bit sequence
  • the SSB time-frequency resource structure (including 20 RBs) in the related technology is still used for rate matching and resource mapping, and then the symbols on the physical resources that exceed the system bandwidth are removed by puncturing, and then OFDM modulation and data transmission are performed, without any restrictions.
  • the PBCH payload is encoded to obtain an encoded bit sequence, and the encoded bit sequence is rate matched and resource mapped based on the SSB time-frequency resource structure to map the OFDM symbols on the physical resources, and the part of the OFDM symbols on the physical resources that does not exceed the bandwidth of the system spectrum is reserved, and the part of the OFDM symbols is transmitted to the terminal device, so that the PBCH can be effectively transmitted at a lower code rate under the condition of limited frequency resources, thereby greatly improving the transmission performance of the PBCH.
  • the transmission mode of the PBCH is made more flexible and effectively applicable to personalized private network systems.
  • Fig. 5 is a flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure, and the method is executed by a terminal device.
  • the physical broadcast channel PBCH transmission method in this embodiment can be applied to a terminal device, and there is no limitation on this.
  • the method may include but is not limited to the following steps:
  • S501 Receive each synchronization signal and a physical broadcast channel PBCH payload of a physical broadcast channel PBCH block SSB transmitted by a network device based on a system spectrum smaller than a first bandwidth.
  • the first bandwidth may refer to the bandwidth of a system with limited frequency resources.
  • the first bandwidth may be, for example, a bandwidth capable of providing communication services for a private network system, such as a system that provides communication services for a power system, a railway system, public protection, disaster relief, and other dedicated services.
  • the first bandwidth may be, for example, 5 MHz.
  • the first bandwidth may also be any other possible bandwidth value, without limitation.
  • each synchronization signal and physical broadcast channel PBCH payload of the physical broadcast channel PBCH block SSB transmitted by the network device can be received based on a system spectrum smaller than the first bandwidth, thereby effectively improving the transmission performance of the PBCH when frequency resources are limited.
  • the network device transmits each synchronization signal and the physical broadcast channel PBCH payload of the physical broadcast channel PBCH block SSB to the terminal device, which can be transmitted based on a system spectrum smaller than the first bandwidth.
  • the PBCH payload of each SSB in the SSB burst set can be transmitted with a system spectrum smaller than 5 MHz.
  • the terminal device can then receive the PBCH payload of each SSB transmitted by the network device based on the system spectrum smaller than the first bandwidth.
  • the transmission performance of the PBCH can be effectively improved when frequency resources are limited.
  • the first bandwidth is 5 MHz, thereby achieving transmission of the PBCH payload of each SSB to the terminal device based on a system spectrum less than 5 MHz.
  • the bandwidth of the system spectrum may also be at least one of 3 MHz, 2.8 MHz, 3.6 MHz, and a bandwidth value between 2.8 MHz and 3.6 MHz, without limitation.
  • the PBCH payload may not carry common subcarrier spacing subCarrierSpacingCommon, spare spare, message extension spare messageClassExtension, parameter parameter And one or more items in the SSB index information, thereby being able to effectively maintain a low code rate when frequency resources are limited, thereby greatly improving the transmission performance of PBCH.
  • the embodiment of the present disclosure supports trimming the PBCH payload of each SSB, and the trimmed PBCH payload (PBCH payload size) does not carry the common subcarrier spacing subCarrierSpacingCommon, spare spare, message extension spare messageClassExtension, parameter parameter and one or more items of SSB index information.
  • the subCarrierSpacingCommon field in the MIB can be deleted.
  • the subCarrierSpacingCommon field is used to indicate the subcarrier spacing used for the initial access message and system messages (such as Msg2), etc.; it is also possible to consider removing the spare field and the message extension spare messageClassExtension field (1 bit) to minimize the PBCH payload.
  • the bits provided by the physical layer in the PBCH payload may be trimmed to further reduce the PBCH payload.
  • the two lowest reserved bits provided by the physical layer in the PBCH payload can also be removed. Since some dedicated spectrums (n8, n26, n28, n100) are spectrums less than 3 GHZ, there are at most 4 SSB indexes in their SSB time domain position distribution. Therefore, the SSB index information is carried in the demodulation reference signal sequence (DMRS sequence).
  • DMRS sequence demodulation reference signal sequence
  • the PBCH payload does not contain the SSB index information. Therefore, the reserved bit parameter provided by the physical layer can be and/or parameters delete.
  • the PBCH payload may include an SSB subcarrier offset indication, wherein the SSB subcarrier offset indication is configured by ssb-SubcarrierOffset, and the configuration parameters of the SSB subcarrier offset indication do not include the parameter
  • the dedicated spectrum usually only supports 15KHZ SCS
  • the PBCH payload also includes a parameter pdcch-ConfigSIB1; wherein the parameter pdcch-ConfigSIB1 does not include the 4 highest bits MSB controlResourceSetZero, and CORESET#0 associated with the SSB uses a fixed time-frequency domain bandwidth, thereby achieving flexible reduction of the PBCH payload.
  • the parameter pdcch-ConfigSIB1 can be used to configure the control resource set and monitoring timing of the Type0-PDDCH common search space.
  • CORESET#0 refers to the abbreviation of the control resource set CORESET of Type0-PDDCH CSS in the protocol specification.
  • Type0-PDDCH CSS is a type of common search space CSS.
  • the time-frequency resource information of CORESET0 can be determined by looking up the 4 most significant bits (MSB) controlResourceSetZero field in Pdcch-ConfigSIB1.
  • CORESET#0 for the configuration of CORESET#0, a possible implementation is to use a fixed CORESET#0 time-frequency domain bandwidth, for example, CORESET#0 is fixedly configured to use ⁇ 3 OFDM symbols, full bandwidth ⁇ . Therefore, it is possible to consider removing the upper four bits of PDCCH-ConfigSIB1, that is, making the parameter pdcch-ConfigSIB1 not carry the 4 highest bits MSB controlResourceSetZero.
  • the PBCH payload may further include a parameter controlResourceSetZero
  • the parameter controlResourceSetZero includes only at least one of the following: N least significant bits (LSB), wherein the N least significant bits LSB are used to indicate the configuration parameters of the first n rows in the CORESET#0 configuration table, N is less than 4, n is less than or equal to 8, and N and n are both positive integers; M bits, wherein the M bits are used to indicate the number of symbols occupied by CORESET#0, M is less than 4, and M is a positive integer, thereby effectively reducing the bits occupied by the parameter controlResourceSetZero in the PBCH payload, so as to flexibly reduce the PBCH payload.
  • N least significant bits LSB
  • M bits wherein the M bits are used to indicate the number of symbols occupied by CORESET#0, M is less than 4, and M is a positive integer
  • CORESET#0 occupies the entire frequency domain channel bandwidth, and there is no limitation on this.
  • the parameter controlResourceSetZero in the PBCH payload may include only N LSBs, where the N least significant bits LSBs are used to indicate the configuration parameters of the first n rows in the CORESET#0 configuration table, where N is less than 4, n is less than or equal to 8, and N and n are both positive integers; or, the parameter controlResourceSetZero in the PBCH payload may include only M bits, where M bits are used to indicate the number of symbols occupied by CORESET#0, where M is less than 4, and CORESET#0 occupies the entire frequency domain channel bandwidth, and M is a positive integer, with no restriction on this.
  • the N least significant bits LSB are used to indicate the configuration parameters of the first n rows in the CORESET#0 configuration table, N is less than 4, and n is less than or equal to 8.
  • N can be 3, and n can be 8, then the 3 least significant bits LSB are used to indicate the configuration parameters of the first 8 rows in the CORESET#0 configuration table; of course, N can also be any positive integer less than 4, n can be any positive integer less than or equal to 8, and M can also be any positive integer less than 4, without limitation.
  • the bit length of the cyclic redundancy check (CRC) corresponding to the PBCH payload can be further trimmed, wherein the number of CRC bits of the PBCH transmitted in a dedicated spectrum system less than 5MHZ is one of 16 bits, 19 bits, and 21 bits, thereby effectively reducing the number of bits occupied by the CRC and realizing flexible reduction of the PBCH payload.
  • CRC cyclic redundancy check
  • an implementation method for effectively reducing the PBCH payload can be flexibly selected to effectively maintain a low code rate when frequency resources are limited, thereby greatly improving the transmission performance of the PBCH and minimizing the system resource overhead used for periodic broadcasting of the PBCH.
  • Fig. 6 is a flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure, and the method is executed by a terminal device.
  • the physical broadcast channel PBCH transmission method in this embodiment can be applied to a terminal device, and there is no limitation on this.
  • the method may include but is not limited to the following steps:
  • S601 Receive mapped orthogonal frequency division multiplexing (OFDM) symbols transmitted by a network device, wherein the mapped OFDM symbols are obtained by rate matching a bit sequence after encoding a PBCH payload based on a system bandwidth, and mapping the encoded bit sequence to the bandwidth of a system spectrum.
  • OFDM orthogonal frequency division multiplexing
  • the mapped orthogonal frequency division multiplexing OFDM symbols transmitted by the network device may be received based on the system spectrum, and there is no limitation to this.
  • the mapped orthogonal frequency division multiplexing OFDM symbol transmitted by the receiving network device is obtained, wherein the mapped OFDM symbol is obtained by rate matching the bit sequence after encoding the PBCH payload based on the system bandwidth, and mapping the encoded bit sequence to the bandwidth of the system spectrum, so that the PBCH can be effectively transmitted at a lower code rate in the case of limited frequency resources, thereby greatly improving the transmission performance of the PBCH, and being effectively applicable to personalized private network systems.
  • Fig. 7 is a flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure, which is executed by a terminal device.
  • the physical broadcast channel PBCH transmission method in this embodiment can be applied to a terminal device, without limitation.
  • the method may include but is not limited to the following steps:
  • S701 Receive part of the OFDM symbols transmitted by the network device, wherein the part of the OFDM symbols is obtained by rate matching and resource mapping a bit sequence after encoding the PBCH payload based on the SSB time-frequency resource structure, so as to obtain OFDM symbols on physical resources that do not exceed the bandwidth of the system spectrum.
  • the mapped orthogonal frequency division multiplexing OFDM symbols transmitted by the network device may be received based on the system spectrum, and there is no limitation to this.
  • the PBCH payload is encoded to obtain an encoded bit sequence, and the encoded bit sequence is rate matched and resource mapped based on the SSB time-frequency resource structure to map the OFDM symbols on the physical resources, and the part of the OFDM symbols on the physical resources that does not exceed the bandwidth of the system spectrum is reserved, and the part of the OFDM symbols is transmitted to the terminal device, so that the PBCH can be effectively transmitted at a lower code rate under the condition of limited frequency resources, thereby greatly improving the transmission performance of the PBCH.
  • the transmission mode of the PBCH is made more flexible and effectively applicable to personalized private network systems.
  • FIG. 8 is a flow chart of another physical broadcast channel PBCH transmission method provided in an embodiment of the present disclosure, showing The following is a schematic diagram of the interaction between network devices and terminal devices.
  • the network device encodes the PBCH payload to obtain an encoded bit sequence.
  • the network device performs rate matching on the encoded bit sequence based on the system bandwidth, and maps the encoded bit sequence to the bandwidth of the system spectrum to obtain mapped orthogonal frequency division multiplexing OFDM symbols.
  • the terminal device receives the PBCH payload of each SSB transmitted by the network device.
  • FIG9 is a flow chart of another physical broadcast channel PBCH transmission method provided by an embodiment of the present disclosure, showing a schematic diagram of interaction between a network device and a terminal device. Specific descriptions are as follows:
  • the network device encodes the PBCH payload to obtain an encoded bit sequence.
  • the encoded bit sequence is rate matched and resource mapped to obtain OFDM symbols on the physical resources.
  • the terminal device receives some OFDM symbols transmitted by the network device.
  • FIG10 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure.
  • the communication device 100 shown in FIG10 may include a transceiver module 1001 and a processing module 1002.
  • the transceiver module 1001 may include a sending module and/or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module 1001 may implement a sending function and/or a receiving function.
  • the communication device 100 may be a network device (such as the network device in the aforementioned method embodiment), or a device in a network device, or a device that can be used in conjunction with a network device.
  • the communication device 100 may be a terminal device (such as the terminal device in the aforementioned method embodiment), or a device in a terminal device, or a device that can be used in conjunction with a terminal device.
  • the communication device 100 on the network device side, includes:
  • the transceiver module 1001 is used to transmit each synchronization signal and a physical broadcast channel PBCH payload of a physical broadcast channel PBCH block SSB to a terminal device based on a system spectrum smaller than a first bandwidth.
  • the network device transmits each synchronization signal and the physical broadcast channel PBCH payload of the physical broadcast channel PBCH block SSB to the terminal device based on the system spectrum smaller than the first bandwidth, which can effectively improve the transmission performance of the PBCH when frequency resources are limited.
  • the communication device 100 on the terminal device side, includes:
  • the transceiver module 1001 is used to receive each synchronization signal and a physical broadcast channel PBCH payload of a physical broadcast channel PBCH block SSB transmitted by a network device based on a system spectrum smaller than a first bandwidth.
  • the terminal device receives each synchronization signal and the physical broadcast channel PBCH payload of the physical broadcast channel PBCH block SSB transmitted by the network device based on a system spectrum smaller than the first bandwidth, thereby effectively improving the transmission performance of the PBCH when frequency resources are limited.
  • FIG11 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure.
  • the communication device 110 may be a terminal device (such as the terminal device in the aforementioned method embodiment), or a network device (such as the network device in the aforementioned method embodiment), or a chip, a chip system, or a processor that supports the terminal device to implement the aforementioned method, or a chip, a chip system, or a processor that supports the network device to implement the aforementioned method.
  • the device may be used to implement the method described in the aforementioned method embodiment, and the details may refer to the description in the aforementioned method embodiment.
  • the communication device 110 may include one or more processors 1101.
  • the processor 1101 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 110 may further include one or more memories 1102, on which a computer program 1104 may be stored, and the processor 1101 may store a computer program 1103, and the processor 1101 executes the computer program 1104 and/or the computer program 1103. So that the communication device 110 executes the method described in the above method embodiment.
  • data may also be stored in the memory 1102.
  • the communication device 110 and the memory 1102 may be provided separately or integrated together.
  • the communication device 110 may further include a transceiver 1105 and an antenna 1106.
  • the transceiver 1105 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1105 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 110 may further include one or more interface circuits 1107.
  • the interface circuit 1107 is used to receive code instructions and transmit them to the processor 1101.
  • the processor 1101 runs the code instructions to enable the communication device 110 to execute the method described in the above method embodiment.
  • the processor 1101 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1101 may store a computer program 1103, which runs on the processor 1101 and enables the communication device 110 to perform the method described in the above method embodiment.
  • the computer program 1103 may be fixed in the processor 1101, in which case the processor 1101 may be implemented by hardware.
  • the communication device 110 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a terminal device (such as the terminal device in the aforementioned method embodiment) or a network device (such as the network device in the aforementioned method embodiment), but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 11.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • Figure 12 is a schematic diagram of the structure of a chip in an embodiment of the present disclosure.
  • the chip shown in Figure 12 includes a processor 1201 and an interface 1202.
  • the number of processors 1201 can be one or more, and the number of interfaces 1202 can be multiple.
  • Processor 1201 is used to implement the method steps in the embodiments of Figures 2 to 4, 8, and 9.
  • Processor 1201 is used to implement the method steps in the embodiments of Figures 5 to 7, 8, and 9.
  • the chip further includes a memory 1203, and the memory 1203 is used to store necessary computer programs and data.
  • the present disclosure also provides a communication system, which includes the communication device in the embodiment of FIG. 10 as a terminal device (such as the terminal device in the embodiment of the method) and the communication device as a network device (such as the network device in the embodiment of the method), or the system includes the communication device in the embodiment of FIG. 11 as a terminal device (such as the terminal device in the embodiment of the method) and the communication device as a network device.
  • a communication device of a network device (such as the network device in the aforementioned method embodiment).
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开实施例公开了一种物理广播信道PBCH传输方法、装置、设备及存储介质，可以应用于通信系统中，该方法包括：网络设备基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。通过实施本公开的方法，能够在频率资源有限的情况下，有效提高PBCH的传输性能。

Description

物理广播信道PBCH传输方法、装置、设备及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种物理广播信道PBCH传输方法、装置、设备及存储介质。
背景技术
物理广播信道(physical broadcast channel，PBCH)是终端设备(user equipment，UE)完成主同步信号和辅同步信号检测之后需要解码的第一个信道。PBCH和解调参考信号(demodulation reference signal，DMRS)包含在同步信号和物理广播信道PBCH块(synchronization and physical broadcast channel block，SSB)中。PBCH的内容为UE访问新空口(new radio，NR)无线网络系统所需最小系统信息的一部分，包括主信息块(master information block，MIB)和其他与SSB传输时间有关的信息。
相关技术中，在NR系统中，PBCH通常占用20个资源块(resource block，RB)进行传输，而专网系统的频率资源有限，有必要考虑如何在频率资源有限的情况下，提高PBCH的传输性能。
发明内容
本公开实施例提供一种物理广播信道PBCH传输方法、装置、设备、芯片系统、存储介质、计算机程序及计算机程序产品，可应用于通信技术领域中，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
第一方面，本公开实施例提供一种物理广播信道PBCH传输方法，被网络设备执行，该方法包括：基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
第二方面，本公开实施例提供一种物理广播信道PBCH传输方法，被终端设备执行，该方法包括：基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
第三方面，本公开实施例提供一种通信装置，该通信装置具有实现上述第一方面的方法中网络设备的部分或全部功能，比如通信装置的功能可具备本公开中的部分或全部实施例中的功能，也可以具备单独实施本公开中的任一个实施例的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。
可选的，在本公开的一个实施例之中，该通信装置的结构中可包括收发模块和处理模块，处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。通信装置还可以包括存储模块，存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。
第四方面，本公开实施例提供另一种通信装置，该通信装置具有实现上述第二方面的方法示例中终端设备的部分或全部功能，比如通信装置的功能可具备本公开中的部分或全部实施例中的功能，也可以具备单独实施本公开中的任一个实施例的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。
可选的，在本公开的一个实施例之中，该通信装置的结构中可包括收发模块和处理模块，该处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。通信装置还可以包括存储模块，存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
第五方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面的物理广播信道PBCH传输方法。
第六方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面的物理广播信道PBCH传输方法。
第七方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面的物理广播信道PBCH传输方法。
第八方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面的物理广播信道PBCH传输方法。
第九方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行代码指令以使该装置执行上述第一方面的物理广播信道PBCH传输方法。
第十方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行代码指令以使该装置执行上述第二方面的物理广播信道PBCH传输方法。
第十一方面，本公开实施例提供一种通信系统，该系统包括第三方面的通信装置以及第四方面的通信装置，或者，该系统包括第五方面的通信装置以及第六方面的通信装置，或者，该系统包括第七方面的通信装置以及第八方面的通信装置，或者，该系统包括第九方面的通信装置以及第十方面的通信装置。
第十二方面，本公开实施例提供一种计算机可读存储介质，用于储存为上述网络设备所用的指令，当指令被执行时，使网络设备执行上述第一方面的物理广播信道PBCH传输方法。
第十三方面，本公开实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当指令被执行时，使终端设备执行上述第二方面的物理广播信道PBCH传输方法。
第十四方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面的物理广播信道PBCH传输方法。
第十五方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面的物理广播信道PBCH传输方法。
第十六方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持网络设备实现第一方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。
在一种可能的设计中，芯片系统还包括存储器，存储器，用于保存网络设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十七方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持终端设 备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。
在一种可能的设计中，芯片系统还包括存储器，存储器，用于保存终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十八方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面的物理广播信道PBCH传输方法。
第十九方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面的物理广播信道PBCH传输方法。
综上，在本公开实施例提供的物理广播信道PBCH传输方法、装置、设备、芯片系统、存储介质、计算机程序及计算机程序产品，可以实现以下技术效果：
由网络设备基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案，下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1为本公开实施例提供的一种通信系统的架构示意图；
图2是本公开实施例提供的一种物理广播信道PBCH传输方法的流程示意图；
图3是本公开实施例提供的另一种物理广播信道PBCH传输方法的流程示意图；
图4是本公开实施例提供的另一种物理广播信道PBCH传输方法的流程示意图；
图5是本公开实施例提供的又一种物理广播信道PBCH传输方法的流程示意图；
图6是本公开实施例提供的又一种物理广播信道PBCH传输方法的流程示意图；
图7是本公开实施例提供的又一种物理广播信道PBCH传输方法的流程示意图；
图8是本公开实施例提供的再一种物理广播信道PBCH传输方法的流程示意图；
图9是本公开实施例提供的再一种物理广播信道PBCH传输方法的流程示意图；
图10为本公开实施例提供的一种通信装置的结构示意图；
图11是本公开实施例提供的另一种通信装置的结构示意图；
图12是本公开实施例的芯片的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的 任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
为了便于理解，首先介绍本公开涉及的术语。
1、物理广播信道(physical broadcast channel，PBCH)。
PBCH是UE完成主同步信号和辅同步信号检测之后需要解码的第一个信道。
2、控制资源集(control resource set，CORESET)。
CORESET是发送物理下行控制信道(physical downlink control channel，PDCCH)(下行控制信息DCI，可以由PDCCH承载)的一个时频区域。
3、Type0-PDDCH CSS是一种公共搜索空间(common search space，CSS)的类型。
4、CORESET#0，是指Type0-PDDCH CSS的控制资源集CORESET在协议规范中的简称。
为了更好的理解本公开实施例公开的一种物理广播信道PBCH传输方法，下面首先对本公开实施例适用的通信系统进行描述。
请参见图1，图1为本公开实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络设备和一个终端设备，图1所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定，实际应用中可以包括两个或两个以上的网络设备，两个或两个以上的终端设备。图1所示的通信系统以包括一个网络设备101和一个终端设备102为例。
需要说明的是，本公开实施例的技术方案可以应用于各种通信系统。例如：长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等。
本公开实施例中的网络设备101是网络侧的一种用于发射或接收信号的实体。例如，网络设备101可以为演进型基站(evolved NodeB，eNB)、传输接收点(transmission reception point，TRP)、NR系统中的下一代基站(next generation NodeB，gNB)、专网系统、其他未来移动通信系统中的基站或无线保真(wireless fidelity，WiFi)系统中的接入节点等。本公开的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
本公开实施例提供的网络设备可以是由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本公开实施例中的终端设备102是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设 备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。
本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
需要说明的是，本公开中任一个实施例提供的物理广播信道PBCH传输方法可以单独执行，或是结合其他实施例中的可能的实现方法一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
下面结合附图对本公开所提供的物理广播信道PBCH传输方法及其装置进行详细地介绍。图2是本公开实施例提供的一种物理广播信道PBCH传输方法的流程示意图，该方法由网络设备执行。本实施例中的物理广播信道PBCH传输方法可以应用在网络设备中，对此不做限制。
如图2所示，该方法可以包括但不限于如下步骤：
S201：基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
其中，第一带宽可以是指频率资源有限的系统的带宽。
一些实施例中，第一带宽可以例如是能够为专网系统提供通信服务的带宽，专网系统例如是为电力系统、铁路系统、公共保护和救灾等专用业务提供通信服务的系统。第一带宽可以具体例如5兆赫兹(mega hertz，MHz)，当然，第一带宽也可以是其他任意可能的带宽值，对此不作限制。
需要说明的是，在一些版本的通信协议中(例如，R18(release 18)通信协议)，可能会对部分专用频谱(n8，n26，n28，n100)支持NR技术，而部分专用频谱(n8，n26，n28，n100)通常为上述专网系统提供通信服务。前述专用频谱仅支持15千赫兹(kilo hertz，KHz)子载波间隔，支持的系统带宽包括5MHz和3MHz，根据NR和长期演进(long term evolution，LTE)对于射频信道(radio frequency channel，RF Channel)带宽的规定，5MHz可用RB个数为25个，根据LTE对RF channel带宽的规定，3MHz可用RB个数为15个。在NR系统中，PBCH通常占用20个RB进行传输，而专网系统(即，3MHz(15个RB)以及2.8MHz～3.6MHz)的频率资源有限，因此，有必要考虑如何在在频率资源有限的情况下，提高PBCH的传输性能。
本公开实施例中，可以基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，由此，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
也即是说，本公开实施例中网络设备向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，可以是基于小于第一带宽的系统频谱来传输，比如，可以是以小于5MHz的系统频谱来传输SSB突发集中每个SSB的PBCH有效载荷。
本实施例中，通过基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
在本公开的一些实施例中，第一带宽为5MHz，从而实现基于小于5MHz的系统频谱，向终端设备 传输每个SSB的PBCH有效载荷。
在本公开的一些实施例中，系统频谱的带宽也可以是3MHz、2.8MHz、3.6MHz、位于2.8MHz至3.6MHz之间的带宽值中的至少一种，对此不作限制。
由此，本公开实施例中，能够实现基于个性化的系统频谱向终端设备传输每个SSB的PBCH有效载荷，保证在不同频率资源的情况下，均能够获得较好的PBCH传输性能。
在本公开的一些实施例中，PBCH有效载荷可以不承载公共子载波间隔subCarrierSpacingCommon、备用spare、消息扩展备用messageClassExtension、参数参数以及SSB索引信息中的一项或者多项，由此，能够在频率资源有限的情况下，有效保持较低的码率，从而较大程度提高PBCH的传输性能。
也即是说，本公开实施例中支持对每个SSB的PBCH有效载荷进行裁剪，裁剪所得PBCH有效载荷(PBCH payload size)不承载公共子载波间隔subCarrierSpacingCommon、备用spare、消息扩展备用messageClassExtension、参数参数以及SSB索引信息中的一项或者多项。
举例而言，考虑到专用频谱(dedicated spectrum)通常仅支持15KHZ子载波间隔(sub-carrier spacing，SCS)，因此，可删除MIB中subCarrierSpacingCommon字段，subCarrierSpacingCommon字段用于指示用于初始接入消息以及系统消息(如Msg2)的子载波间隔等等；还可以考虑将备用spare字段和消息扩展备用messageClassExtension字段(1bit)去除，以尽可能减少PBCH有效载荷。
举例而言，还可以对PBCH有效载荷中由物理层提供的比特进行剪裁，以进一步减少PBCH有效载荷。
举例而言，还可以对PBCH有效载荷中由物理层提供的最低两位保留比特移除，由于部分专用频谱(n8，n26，n28，n100)均为小于3GHZ的频谱，在其SSB时域位置分布情况下，最多有4个SSB index(SSB索引)，因此，SSB index信息(SSB索引信息)携带在解调参考信号序列(demodulation reference signal sequence，DMRS sequence)中，PBCH有效载荷(PBCH payload)中不含有SSB index信息，因此，可把由物理层提供的保留位参数和/或参数删除。
在本公开的一些实施例中，PBCH有效载荷可以包括SSB子载波偏移指示，其中，SSB子载波偏移指示通过ssb-SubcarrierOffset配置，SSB子载波偏移指示的配置参数不包括参数且SSB子载波偏移指示的有效的子载波偏移值范围为0<＝kssb<＝11，载波频率属于FR1频率范围，kssb表示有效的子载波偏移，从而实现减少SSB子载波偏移指示占用的比特，以实现灵活地减少PBCH有效载荷。
也即是说，本公开实施例中，考虑到专用频谱(dedicated spectrum)通常仅支持15KHZ SCS，因此可以去除kssb的最高位占用的1比特，也就是说，对于FR1小于5MHz专用频谱，使用4bit来指示kssb,kssb的有效的子载波偏移值范围为0<＝kssb<＝11。
在本公开的一些实施例中，PBCH有效载荷还包括参数pdcch-ConfigSIB1；其中，参数pdcch-ConfigSIB1不包括4个最高比特位MSB controlResourceSetZero，与SSB关联的CORESET#0使 用固定的时频域带宽，从而实现灵活地减少PBCH有效载荷。
其中，参数pdcch-ConfigSIB1，可以用于配置Type0-PDDCH公共搜索空间的控制资源集和监听时机。CORESET#0，是指Type0-PDDCH CSS的控制资源集(control resource set，CORESET)在协议规范中的简称，Type0-PDDCH CSS是一种公共搜索空间(common search space，CSS)的类型。
在一些实施例中，可以通过Pdcch-ConfigSIB1中4个最高比特位(most significant bit，MSB)controlResourceSetZero字段查表确定CORESET0的时频资源信息。
在一些实施例中，SSB可能携带关联的CORESET#0的配置信息以及Type0-PDDCH CSS的监听时机。
本公开实施例中，对于CORESET#0的配置，一种可能的实施方式是使用固定的CORESET#0时频域带宽，比如CORESET#0固定使用{3个OFDM符号，全带宽}的配置，因此，可以考虑将PDCCH-ConfigSIB1的高四位比特移除掉，即，使参数pdcch-ConfigSIB1不承载4个最高比特位MSB controlResourceSetZero。
在本公开的一些实施例中，PBCH有效载荷还可以包括参数controlResourceSetZero，则参数controlResourceSetZero仅包括以下至少一项:N个最低比特位(least significant bit，LSB)，其中，N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，N小于4，n小于或等于8，N和n均为正整数；M个比特位，其中，M个比特位用于指示CORESET#0占用的符号个数，M小于4，M为正整数，有效减少PBCH有效载荷中参数controlResourceSetZero占用的比特，以实现灵活地减少PBCH有效载荷。
在本公开的一些实施例中，CORESET#0占用全部频域信道带宽，对此不作限制。
也即是说，PBCH有效载荷中的参数controlResourceSetZero可以仅包括N个LSB，N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，N小于4，n小于或等于8，N和n均为正整数；或者，PBCH有效载荷中的参数controlResourceSetZero可以仅包括M个比特位，M个比特位用于指示CORESET#0占用的符号个数，M小于4，CORESET#0占用全部频域信道带宽，M为正整数，对此不作限制。
在一些实施例中，N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，N小于4，n小于或等于8，例如，N可以是3，n可以是8，则3个最低比特位LSB用于指示CORESET#0配置表格中的前8行的配置参数；当然，N也可以取小于4的任意正整数，n可以取小于或等于8的任意正整数，M也可以取小于4的任意正整数，对此不作限制。
举例而言，在一些实施例中，pdcch-ConfigSIB1的部分比特用于指示CORESET#0部分有效的CORESET#0配置，比如保留最低三位比特，用于指示CORESET#0配置表格中的前n行(n<＝8)；或者CORESET#0可能占用整个频域信道带宽，因此，无需再次为CORESET#0指示频域资源宽度，仅需要通过M个比特来指示CORESET#0占用的符号个数等(其中M<4)，因此，还可以考虑将部分无效比特去除，以尽量减少PBCH payload。
在本公开的一些实施例中，PBCH有效载荷对应的循环冗余校验(cyclic redundancy check，CRC)比特长短也可以进一步裁剪，其中，小于5MHz专用频谱系统传输的PBCH的CRC比特数是16比特、19比特、21比特中的其中一项，从而能够有效减少CRC占用的比特数，实现灵活地减少PBCH有效载 荷。
需要说明的是，本公开中上述任一个实施例提供的物理广播信道PBCH传输方法可以单独执行，或是结合其他实施例中的可能的实现方法一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
由此，本公开实施例中，可以灵活地选择有效减少PBCH有效载荷的实施方式，以在频率资源有限的情况下，有效保持较低的码率，从而较大程度提高PBCH的传输性能，以及尽可能减少用于周期性广播PBCH所用的系统资源开销。
图3是本公开实施例提供的另一种物理广播信道PBCH传输方法的流程示意图，该方法由网络设备执行。本实施例中的物理广播信道PBCH传输方法可以应用在网络设备中，对此不做限制。
如图3所示，该方法可以包括但不限于如下步骤：
S301：对PBCH有效载荷进行编码，得到编码后的比特序列。
一些实施例中，在确定PBCH有效载荷后，可以对PBCH有效载荷进行极化编码，极化编码所得比特序列，可以被称为编码后的比特序列，对此不作限制。
S302：基于系统带宽对编码后的比特序列进行速率匹配，并将编码后的比特序列映射至系统频谱的带宽内，得到映射所得正交频分复用OFDM符号，其中，系统频谱小于第一带宽。
一些实施例中，系统带宽，也可以是小于第一带宽，关于第一带宽的描述说明可以参见上述实施例，在此不再赘述。
上述在对PBCH有效载荷进行编码，得到编码后的比特序列之后，可以直接基于系统带宽对编码后的比特序列进行速率匹配，并将编码后的比特序列映射至系统频谱的带宽内，得到映射所得正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，而后执行步骤S303。
S303：向终端设备传输映射所得OFDM符号。
一些实施例中，可以基于系统频谱向终端设备传输映射所得OFDM符号，对此不作限制。
举例而言，对于编码后的比特(编码后的比特，是编码后的比特序列的一种可选示例)，通过速率匹配(rate-macthing)的方式映射到3MHz的系统带宽内(或者小于或者等于3MHz(包含15RBs或者16RBs)的系统带宽内)，对此不作限制。
由此，本实施例中，通过对PBCH有效载荷进行编码，得到编码后的比特序列，并基于系统带宽对编码后的比特序列进行速率匹配，并将编码后的比特序列映射至系统频谱的带宽内，得到映射所得正交频分复用OFDM符号，以及向终端设备传输映射所得OFDM符号，以在频率资源有限的情况下，以较低的码率有效地对PBCH进行传输，从而较大程度提高PBCH的传输性能，有效适用于个性化的专网系统。
图4是本公开实施例提供的另一种物理广播信道PBCH传输方法的流程示意图，该方法由网络设备执行。本实施例中的物理广播信道PBCH传输方法可以应用在网络设备中，对此不做限制。
如图4所示，该方法可以包括但不限于如下步骤：
S401：对PBCH有效载荷进行编码，得到编码后的比特序列。
一些实施例中，在确定PBCH有效载荷后，可以对PBCH有效载荷进行极化编码，极化编码所得比特序列，可以被称为编码后的比特序列，对此不作限制。
S402：基于原始SSB时频资源结构对编码后的比特序列进行速率匹配和资源映射，以映射得到物理资源上的OFDM符号。
其中，SSB时频资源结构，用于描述SSB的时频资源分布。
在一些实施例中，可以基于SSB时频资源结构对编码后的比特序列进行速率匹配和资源映射，则可 以映射得到物理资源上的OFDM符号。
S403：保留物理资源上的OFDM符号中未超过系统频谱的带宽的部分OFDM符号，其中，系统频谱小于第一带宽。
由于是基于基于SSB时频资源结构对编码后的比特序列进行速率匹配和资源映射，则物理资源上的OFDM符号可能会包含超过系统频谱的带宽的OFDM符号，本公开实施例中可以将超过系统频谱的带宽的OFDM符号删除处理，并保留物理资源上的OFDM符号中未超过系统频谱的带宽的部分OFDM符号，而后执行S404。
S404：向终端设备传输部分OFDM符号。
一些实施例中，可以基于系统频谱向终端设备传输未超过系统频谱的带宽的部分OFDM符号，对此不作限制。
举例而言，对于编码后的比特(编码后的比特，是编码后的比特序列的一种可选示例)，仍然采用相关技术中的SSB时频资源结构(包含20个RB)进行速率匹配和资源映射，进一步再通过puncturing(刺破)的方式把超过系统带宽的物理资源上的符号打掉，而后进行OFDM调制和数据发送，对此不作限制。
由此，本实施例中，通过对PBCH有效载荷进行编码，得到编码后的比特序列，并基于SSB时频资源结构对编码后的比特序列进行速率匹配和资源映射，以映射得到物理资源上的OFDM符号，以及保留物理资源上的OFDM符号中未超过系统频谱的带宽的部分OFDM符号，向终端设备传输部分OFDM符号，以在频率资源有限的情况下，以较低的码率有效地对PBCH进行传输，从而较大程度提高PBCH的传输性能。并且，使得PBCH的传输方式更为灵活，有效适用于个性化的专网系统。
需要说明的是，在下述实施例中，与上述实施例中相同或相应术语、方法步骤的描述说明可以具体参见上述实施例，在此不再赘述。
图5是本公开实施例提供的又一种物理广播信道PBCH传输方法的流程示意图，该方法由终端设备执行。本实施例中的物理广播信道PBCH传输方法可以应用在终端设备中，对此不做限制。
如图5所示，该方法可以包括但不限于如下步骤：
S501：基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
其中，第一带宽可以是指频率资源有限的系统的带宽。
一些实施例中，第一带宽可以例如是能够为专网系统提供通信服务的带宽，专网系统例如是为电力系统、铁路系统、公共保护和救灾等专用业务提供通信服务的系统。第一带宽可以具体例如5MHz，当然，第一带宽也可以是其他任意可能的带宽值，对此不作限制。
本公开实施例中，可以基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，由此，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
也即是说，本公开实施例中网络设备向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，可以是基于小于第一带宽的系统频谱来传输，比如，可以是以小于5MHz的系统频谱来传输SSB突发集中每个SSB的PBCH有效载荷，则终端设备可以基于小于第一带宽的系统频谱，接收网络设备传输的每个SSB的PBCH有效载荷。
本实施例中，通过基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
在本公开的一些实施例中，第一带宽为5MHz，从而实现基于小于5MHz的系统频谱，向终端设备传输每个SSB的PBCH有效载荷。
在本公开的一些实施例中，系统频谱的带宽也可以是3MHz、2.8MHz、3.6MHz、位于2.8MHz至3.6MHz之间的带宽值中的至少一种，对此不作限制。
由此，本公开实施例中，能够实现基于个性化的系统频谱向终端设备传输每个SSB的PBCH有效载荷，保证在不同频率资源的情况下，均能够获得较好的PBCH传输性能。
在本公开的一些实施例中，PBCH有效载荷可以不承载公共子载波间隔subCarrierSpacingCommon、备用spare、消息扩展备用messageClassExtension、参数参数以及SSB索引信息中的一项或者多项，由此，能够在频率资源有限的情况下，有效保持较低的码率，从而较大程度提高PBCH的传输性能。
也即是说，本公开实施例中支持对每个SSB的PBCH有效载荷进行裁剪，裁剪所得PBCH有效载荷(PBCH payload size)不承载公共子载波间隔subCarrierSpacingCommon、备用spare、消息扩展备用messageClassExtension、参数参数以及SSB索引信息中的一项或者多项。
举例而言，考虑到专用频谱(dedicated spectrum)通常仅支持15KHZ子载波间隔(sub-carrier spacing，SCS)，因此，可删除MIB中subCarrierSpacingCommon字段，subCarrierSpacingCommon字段用于指示用于初始接入消息以及系统消息(如Msg2)的子载波间隔等等；还可以考虑将备用spare字段和消息扩展备用messageClassExtension字段(1bit)去除，以尽可能减少PBCH有效载荷。
举例而言，还可以对PBCH有效载荷中由物理层提供的比特进行剪裁，以进一步减少PBCH有效载荷。
举例而言，还可以对PBCH有效载荷中由物理层提供的最低两位保留比特移除，由于部分专用频谱(n8，n26，n28，n100)均为小于3GHZ的频谱，在其SSB时域位置分布情况下，最多有4个SSB index(SSB索引)，因此，SSB index信息(SSB索引信息)携带在解调参考信号序列(demodulation reference signal sequence，DMRS sequence)中，PBCH有效载荷(PBCH payload)中不含有SSB index信息，因此，可把由物理层提供的保留位参数和/或参数删除。
在本公开的一些实施例中，PBCH有效载荷可以包括SSB子载波偏移指示，其中，SSB子载波偏移指示通过ssb-SubcarrierOffset配置，SSB子载波偏移指示的配置参数不包括参数且SSB子载波偏移指示的有效的子载波偏移值范围为0<＝kssb<＝11，载波频率属于FR1频率范围，kssb表示有效的子载波偏移，从而实现减少SSB子载波偏移指示占用的比特，以实现灵活地减少PBCH有效载荷。
也即是说，本公开实施例中，考虑到专用频谱(dedicated spectrum)通常仅支持15KHZ SCS，因此 可以去除kssb的最高位占用的1比特，也就是说，对于FR1小于5MHz专用频谱，使用4bit来指示kssb,kssb的有效的子载波偏移值范围为0<＝kssb<＝11。
在本公开的一些实施例中，PBCH有效载荷还包括参数pdcch-ConfigSIB1；其中，参数pdcch-ConfigSIB1不包括4个最高比特位MSB controlResourceSetZero，与SSB关联的CORESET#0使用固定的时频域带宽，从而实现灵活地减少PBCH有效载荷。
其中，参数pdcch-ConfigSIB1，可以用于配置Type0-PDDCH公共搜索空间的控制资源集和监听时机。CORESET#0，是指Type0-PDDCH CSS的控制资源集CORESET在协议规范中的简称，Type0-PDDCH CSS是一种公共搜索空间CSS的类型。
在一些实施例中，可以通过Pdcch-ConfigSIB1中4个最高比特位(most significant bit，MSB)controlResourceSetZero字段查表确定CORESET0的时频资源信息。
在一些实施例中，SSB可能携带关联的CORESET#0的配置信息以及Type0-PDDCH CSS的监听时机。
本公开实施例中，对于CORESET#0的配置，一种可能的实施方式是使用固定的CORESET#0时频域带宽，比如CORESET#0固定使用{3个OFDM符号，全带宽}的配置，因此，可以考虑将PDCCH-ConfigSIB1的高四位比特移除掉，即，使参数pdcch-ConfigSIB1不承载4个最高比特位MSB controlResourceSetZero。
在本公开的一些实施例中，PBCH有效载荷还可以包括参数controlResourceSetZero，则参数controlResourceSetZero仅包括以下至少一项:N个最低比特位(least significant bit，LSB)，其中，N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，N小于4，n小于或等于8，N和n均为正整数；M个比特位，其中，M个比特位用于指示CORESET#0占用的符号个数，M小于4，M为正整数，有效减少PBCH有效载荷中参数controlResourceSetZero占用的比特，以实现灵活地减少PBCH有效载荷。
在本公开的一些实施例中，CORESET#0占用全部频域信道带宽，对此不作限制。
也即是说，PBCH有效载荷中的参数controlResourceSetZero可以仅包括N个LSB，N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，N小于4，n小于或等于8，N和n均为正整数；或者，PBCH有效载荷中的参数controlResourceSetZero可以仅包括M个比特位，M个比特位用于指示CORESET#0占用的符号个数，M小于4，CORESET#0占用全部频域信道带宽，M为正整数，对此不作限制。
在一些实施例中，N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，N小于4，n小于或等于8，例如，N可以是3，n可以是8，则3个最低比特位LSB用于指示CORESET#0配置表格中的前8行的配置参数；当然，N也可以取小于4的任意正整数，n可以取小于或等于8的任意正整数，M也可以取小于4的任意正整数，对此不作限制。
举例而言，在一些实施例中，pdcch-ConfigSIB1的部分比特用于指示CORESET#0部分有效的CORESET#0配置，比如保留最低三位比特，用于指示CORESET#0配置表格中的前n行(n<＝8)；或者CORESET#0可能占用整个频域信道带宽，因此，无需再次为CORESET#0指示频域资源宽度，仅需要通过M个比特来指示CORESET#0占用的符号个数等(其中M<4)，因此，还可以考虑将部分无效 比特去除，以尽量减少PBCH payload。
在本公开的一些实施例中，PBCH有效载荷对应的循环冗余校验(cyclic redundancy check，CRC)比特长短也可以进一步裁剪，其中，小于5MHZ专用频谱系统传输的PBCH的CRC比特数是16比特、19比特、21比特中的其中一项，从而能够有效减少CRC占用的比特数，实现灵活地减少PBCH有效载荷。
需要说明的是，本公开中上述任一个实施例提供的物理广播信道PBCH传输方法可以单独执行，或是结合其他实施例中的可能的实现方法一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
由此，本公开实施例中，可以灵活地选择有效减少PBCH有效载荷的实施方式，以在频率资源有限的情况下，有效保持较低的码率，从而较大程度提高PBCH的传输性能，以及尽可能减少用于周期性广播PBCH所用的系统资源开销。
图6是本公开实施例提供的又一种物理广播信道PBCH传输方法的流程示意图，该方法由终端设备执行。本实施例中的物理广播信道PBCH传输方法可以应用在终端设备中，对此不做限制。
如图6所示，该方法可以包括但不限于如下步骤：
S601：接收网络设备传输的映射所得正交频分复用OFDM符号，其中，映射所得OFDM符号是基于系统带宽对PBCH有效载荷进行编码后的比特序列进行速率匹配，并将编码后的比特序列映射至系统频谱的带宽内得到。
一些实施例中，可以基于系统频谱接收网络设备传输的映射所得正交频分复用OFDM符号，对此不作限制。
本实施例中，通过接收网络设备传输的映射所得正交频分复用OFDM符号，其中，映射所得OFDM符号是基于系统带宽对PBCH有效载荷进行编码后的比特序列进行速率匹配，并将编码后的比特序列映射至系统频谱的带宽内得到，以在频率资源有限的情况下，以较低的码率有效地对PBCH进行传输，从而较大程度提高PBCH的传输性能，有效适用于个性化的专网系统。
图7是本公开实施例提供的又一种物理广播信道PBCH传输方法的流程示意图，该方法由终端设备执行。本实施例中的物理广播信道PBCH传输方法可以应用在终端设备中，对此不做限制。
如图7所示，该方法可以包括但不限于如下步骤：
S701：接收网络设备传输的部分OFDM符号，其中，部分OFDM符号是基于SSB时频资源结构对PBCH有效载荷进行编码后的比特序列进行速率匹配和资源映射，以得到的未超过系统频谱的带宽的物理资源上的OFDM符号。
一些实施例中，可以基于系统频谱接收网络设备传输的映射所得正交频分复用OFDM符号，对此不作限制。
本实施例中，通过对PBCH有效载荷进行编码，得到编码后的比特序列，并基于SSB时频资源结构对编码后的比特序列进行速率匹配和资源映射，以映射得到物理资源上的OFDM符号，以及保留物理资源上的OFDM符号中未超过系统频谱的带宽的部分OFDM符号，向终端设备传输部分OFDM符号，以在频率资源有限的情况下，以较低的码率有效地对PBCH进行传输，从而较大程度提高PBCH的传输性能。并且，使得PBCH的传输方式更为灵活，有效适用于个性化的专网系统。
如图8所示，图8是本公开实施例提供的再一种物理广播信道PBCH传输方法的流程示意图，示出 了网络设备和终端设备之间的交互示意图。具体说明如下：
1、网络设备对PBCH有效载荷进行编码，得到编码后的比特序列。
2、网络设备基于系统带宽对编码后的比特序列进行速率匹配，并将编码后的比特序列映射至系统频谱的带宽内，得到映射所得正交频分复用OFDM符号。
3、向终端设备传输映射所得OFDM符号。
4、终端设备接收网络设备传输的每个SSB的PBCH有效载荷。
如图9所示，图9是本公开实施例提供的再一种物理广播信道PBCH传输方法的流程示意图，示出了网络设备和终端设备之间的交互示意图。具体说明如下：
1、网络设备对PBCH有效载荷进行编码，得到编码后的比特序列。
2、基于SSB时频资源结构对编码后的比特序列进行速率匹配和资源映射，以映射得到物理资源上的OFDM符号。
3、保留物理资源上的OFDM符号中未超过系统频谱的带宽的部分OFDM符号。
4、向终端设备传输部分OFDM符号。
5、终端设备接收网络设备传输的部分OFDM符号。
图10为本公开实施例提供的一种通信装置的结构示意图。图10所示的通信装置100可包括收发模块1001和处理模块1002。收发模块1001可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块1001可以实现发送功能和/或接收功能。
通信装置100可以是网络设备(如前述方法实施例中的网络设备)，也可以是网络设备中的装置，还可以是能够与网络设备匹配使用的装置。或者，通信装置100可以是终端设备(如前述方法实施例中的终端设备)，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。
通信装置100，在网络设备侧，该装置包括：
收发模块1001，用于基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
通过实施本公开的方法，由网络设备基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
通信装置100，在终端设备侧，该装置包括：
收发模块1001，用于基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
通过实施本公开的方法，由终端设备基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷，能够在频率资源有限的情况下，有效提高PBCH的传输性能。
图11是本公开实施例提供的另一种通信装置的结构示意图。通信装置110可以是终端设备(如前述方法实施例中的终端设备)，也可以是网络设备(如前述方法实施例中的网络设备)，也可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置110可以包括一个或多个处理器1101。处理器1101可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置110中还可以包括一个或多个存储器1102，其上可以存有计算机程序1104，处理器1101中可以存有计算机程序1103，处理器1101执行所述计算机程序1104和/或计算机程序1103， 以使得通信装置110执行上述方法实施例中描述的方法。
可选的，所述存储器1102中还可以存储有数据。通信装置110和存储器1102可以单独设置，也可以集成在一起。
可选的，通信装置110还可以包括收发器1105、天线1106。收发器1105可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1105可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置110中还可以包括一个或多个接口电路1107。接口电路1107用于接收代码指令并传输至处理器1101。处理器1101运行所述代码指令以使通信装置110执行上述方法实施例中描述的方法。
在一种实现方式中，处理器1101中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器1101可以存有计算机程序1103，计算机程序1103在处理器1101上运行，可使得通信装置110执行上述方法实施例中描述的方法。计算机程序1103可能固化在处理器1101中，该种情况下，处理器1101可能由硬件实现。
在一种实现方式中，通信装置110可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是终端设备(如前述方法实施例中的终端设备)或者网络设备(如前述方法实施例中的网络设备)，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图11的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图12，图12是本公开实施例的芯片的结构示意图，图12所示的芯片包括处理器1201和接口1202。其中，处理器1201的数量可以是一个或多个，接口1202的数量可以是多个。
对于芯片用于实现本公开实施例中网络设备的功能的情况：
处理器1201，用于实现上述图2-图4、图8、图9实施例中的方法步骤等。
对于芯片用于实现本公开实施例中终端设备的功能的情况：
处理器1201，用于实现上述图5-图7、图8、图9实施例中的方法步骤等。
可选的，芯片还包括存储器1203，存储器1203用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种通信系统，该系统包括前述图10实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网络设备(如前述方法实施例中的网络设备)的通信装置，或者，该系统包括前述图11实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网 络设备(如前述方法实施例中的网络设备)的通信装置。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
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。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域 的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (26)

  1. 一种物理广播信道PBCH传输方法，其特征在于，被网络设备执行，所述方法包括：
    基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
  2. 如权利要求1所述的方法，其特征在于，所述第一带宽为5MHz。
  3. 如权利要求1所述的方法，其特征在于，所述系统频谱的带宽是以下至少一项：
    3MHz；
    2.8MHz；
    3.6MHz；
    位于2.8MHz至3.6MHz之间。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述PBCH有效载荷不承载以下至少一项：
    公共子载波间隔subCarrierSpacingCommon；
    备用spare；
    消息扩展备用messageClassExtension；
    参数
    参数
    SSB索引信息。
  5. 如权利要求1-4任一项所述的方法，其特征在于，所述PBCH有效载荷包括SSB子载波偏移指示，其中，
    所述SSB子载波偏移指示通过ssb-SubcarrierOffset配置；
    所述SSB子载波偏移指示的配置参数不包括参数且
    所述SSB子载波偏移指示的有效的子载波偏移值范围为0<＝kssb<＝11，载波频率属于FR1频率范围，kssb表示所述有效的子载波偏移。
  6. 如权利要求1-5任一项所述的方法，其特征在于，所述PBCH有效载荷包括参数pdcch-ConfigSIB1；其中，所述参数pdcch-ConfigSIB1不包括4个最高比特位MSB controlResourceSetZero，与所述SSB关联的CORESET#0使用固定的时频域带宽。
  7. 如权利要求1-6任一项所述的方法，其特征在于，所述PBCH有效载荷包括参数controlResourceSetZero；其中，所述参数controlResourceSetZero仅包括以下至少一项:
    N个最低比特位LSB，其中，所述N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，所述N小于4，所述n小于或等于8，N和n均为正整数；
    M个比特位，其中，所述M个比特位用于指示CORESET#0占用的符号个数，所述M小于4，M为正整数。
  8. 如权利要求7所述的方法，其特征在于，所述CORESET#0占用全部频域信道带宽。
  9. 如权利要求1-8任一项所述的方法，其特征在于，所述PBCH有效载荷对应循环冗余校验CRC比特；其中，小于5MHz的系统频谱传输的PBCH的CRC比特数是16比特、19比特、21比特中的其中一项。
  10. 如权利要求1-9任一项所述的方法，其特征在于，所述向终端设备传输每个SSB的PBCH有效载荷，包括：
    对所述PBCH有效载荷进行编码，得到编码后的比特序列；
    基于系统带宽对所述编码后的比特序列进行速率匹配，并将所述编码后的比特序列映射至所述系统频谱的带宽内，得到映射所得正交频分复用OFDM符号；
    向所述终端设备传输所述映射所得OFDM符号。
  11. 如权利要求1-9任一项所述的方法，其特征在于，所述向终端设备传输每个SSB的PBCH有效载荷，包括：
    对所述PBCH有效载荷进行编码，得到编码后的比特序列；
    基于SSB时频资源结构对所述编码后的比特序列进行速率匹配和资源映射，以映射得到物理资源上的OFDM符号；
    保留所述物理资源上的OFDM符号中未超过所述系统频谱的带宽的部分OFDM符号；
    向所述终端设备传输所述部分OFDM符号。
  12. 一种物理广播信道PBCH传输方法，其特征在于，被终端设备执行，所述方法包括：
    基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
  13. 如权利要求12所述的方法，其特征在于，所述第一带宽为5MHz。
  14. 如权利要求12所述的方法，其特征在于，所述系统频谱的带宽是以下至少一项：
    3MHz；
    2.8MHz；
    3.6MHz；
    位于2.8MHz至3.6MHz之间。
  15. 如权利要求12-14任一项所述的方法，其特征在于，所述PBCH有效载荷不承载以下至少一项：
    公共子载波间隔subCarrierSpacingCommon；
    备用spare；
    消息扩展备用messageClassExtension；
    参数
    参数
    SSB索引信息。
  16. 如权利要求12-15任一项所述的方法，其特征在于，所述PBCH有效载荷包括SSB子载波偏移指示，其中，
    所述SSB子载波偏移指示通过ssb-SubcarrierOffset配置；
    所述SSB子载波偏移指示的配置参数不包括参数且
    所述SSB子载波偏移指示的有效的子载波偏移值范围为0<＝kssb<＝11，载波频率属于FR1频率范围，kssb表示所述有效的子载波偏移。
  17. 如权利要求12-16任一项所述的方法，其特征在于，所述PBCH有效载荷包括参数pdcch-ConfigSIB1；其中，所述参数pdcch-ConfigSIB1不包括4个最高比特位MSB controlResourceSetZero，与所述SSB关联的CORESET#0使用固定的时频域带宽。
  18. 如权利要求12-17任一项所述的方法，其特征在于，所述PBCH有效载荷包括参数controlResourceSetZero；其中，所述参数controlResourceSetZero仅包括以下至少一项:
    N个最低比特位LSB，其中，所述N个最低比特位LSB用于指示CORESET#0配置表格中的前n行的配置参数，所述N小于4，所述n小于或等于8，N和n均为正整数；
    M个比特位，其中，所述M个比特位用于指示CORESET#0占用的符号个数，所述M小于4，M为正整数。
  19. 如权利要求18所述的方法，其特征在于，所述CORESET#0占用全部频域信道带宽。
  20. 如权利要求12-19任一项所述的方法，其特征在于，所述PBCH有效载荷对应循环冗余校验CRC 比特；其中，小于5MHz的系统频谱传输的PBCH的CRC比特数是16比特、19比特、21比特中的其中一项。
  21. 如权利要求12-20任一项所述的方法，其特征在于，所述接收网络设备传输的每个SSB的PBCH有效载荷，包括：
    接收所述网络设备传输的映射所得正交频分复用OFDM符号，其中，所述映射所得OFDM符号是基于系统带宽对所述PBCH有效载荷进行编码后的比特序列进行速率匹配，并将所述编码后的比特序列映射至所述系统频谱的带宽内得到。
  22. 如权利要求12-20任一项所述的方法，其特征在于，所述接收网络设备传输的每个SSB的PBCH有效载荷，包括：
    接收所述网络设备传输的部分OFDM符号，其中，所述部分OFDM符号是基于SSB时频资源结构对所述PBCH有效载荷进行编码后的比特序列进行速率匹配和资源映射，以得到的未超过所述系统频谱的带宽的物理资源上的OFDM符号。
  23. 一种通信装置，其特征在于，所述装置包括：
    收发模块，用于基于小于第一带宽的系统频谱，向终端设备传输每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
  24. 一种通信装置，其特征在于，所述装置包括：
    收发模块，用于基于小于第一带宽的系统频谱，接收网络设备传输的每个同步信号和物理广播信道PBCH块SSB的物理广播信道PBCH有效载荷。
  25. 一种通信系统，其特征在于，所述通信系统包括网络设备和终端设备，所述网络设备执行如权利要求1-11中任一项所述的方法，所述终端设备执行如权利要求12-22中任一项所述的方法。
  26. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1-22中任一项所述的方法被实现。
PCT/CN2023/076027 2023-02-14 2023-02-14 物理广播信道pbch传输方法、装置、设备及存储介质 Ceased WO2024168552A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP23921720.1A EP4668989A4 (en) 2023-02-14 2023-02-14 PHYSICAL BROADCASTING CHANNEL (PBCH) TRANSMISSION METHOD, AND APPARATUS, DEVICE AND STORAGE MEDIA
CN202380008257.9A CN116349375B (zh) 2023-02-14 2023-02-14 物理广播信道pbch传输方法、装置、设备及存储介质
PCT/CN2023/076027 WO2024168552A1 (zh) 2023-02-14 2023-02-14 物理广播信道pbch传输方法、装置、设备及存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/076027 WO2024168552A1 (zh) 2023-02-14 2023-02-14 物理广播信道pbch传输方法、装置、设备及存储介质

Publications (1)

Publication Number Publication Date
WO2024168552A1 true WO2024168552A1 (zh) 2024-08-22

Family

ID=86886253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/076027 Ceased WO2024168552A1 (zh) 2023-02-14 2023-02-14 物理广播信道pbch传输方法、装置、设备及存储介质

Country Status (3)

Country Link
EP (1) EP4668989A4 (zh)
CN (1) CN116349375B (zh)
WO (1) WO2024168552A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119967609A (zh) * 2023-11-07 2025-05-09 华为技术有限公司 一种通信方法、通信设备、介质及程序产品
CN120730493A (zh) * 2024-03-29 2025-09-30 华为技术有限公司 通信方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111344988A (zh) * 2017-11-15 2020-06-26 高通股份有限公司 用于新无线电的物理广播信道传输
CN111345072A (zh) * 2020-02-14 2020-06-26 北京小米移动软件有限公司 接入控制方法、装置、通信设备及存储介质
WO2023006067A1 (zh) * 2021-07-30 2023-02-02 华为技术有限公司 一种通信方法及装置
CN115694735A (zh) * 2022-10-26 2023-02-03 Oppo广东移动通信有限公司 传输同步信号块ssb的方法及装置、可读存储介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110603744B (zh) * 2017-09-12 2023-05-05 联发科技股份有限公司 Pbch数据处理方法及用户设备
US11723047B2 (en) * 2020-01-22 2023-08-08 Samsung Electronics Co., Ltd. Method and apparatus for PBCH payload in higher frequency ranges
CN115707013A (zh) * 2021-08-11 2023-02-17 华为技术有限公司 一种通信方法及通信装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111344988A (zh) * 2017-11-15 2020-06-26 高通股份有限公司 用于新无线电的物理广播信道传输
CN111345072A (zh) * 2020-02-14 2020-06-26 北京小米移动软件有限公司 接入控制方法、装置、通信设备及存储介质
WO2023006067A1 (zh) * 2021-07-30 2023-02-02 华为技术有限公司 一种通信方法及装置
CN115694735A (zh) * 2022-10-26 2023-02-03 Oppo广东移动通信有限公司 传输同步信号块ssb的方法及装置、可读存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4668989A4 *

Also Published As

Publication number Publication date
CN116349375A (zh) 2023-06-27
EP4668989A1 (en) 2025-12-24
CN116349375B (zh) 2026-04-03
EP4668989A4 (en) 2026-04-15

Similar Documents

Publication Publication Date Title
CN114467352B (zh) 一种资源分配指示方法、资源分配获取方法及其装置
CN113273286B (zh) 一种时域资源分配的方法及装置
CN115669033B (zh) 一种终端处理能力的上报方法、数据处理方法及其装置
WO2023019410A1 (zh) 一种传输下行控制信息dci的方法及其装置
WO2024168552A1 (zh) 物理广播信道pbch传输方法、装置、设备及存储介质
WO2023004653A1 (zh) 一种时隙结构的配置方法及其装置
US20250247833A1 (en) Resource configuration method and apparatus therefor
CN116208921B (zh) 一种下行控制信息的对齐方法及其装置
CN116158178B (zh) 数据传输方法和装置
CN117882343A (zh) 时域资源分配方法、装置、设备及存储介质
CN113767696B (zh) 准共址配置方法、准共址qcl信息确定方法及其装置
WO2023193270A1 (zh) 频域资源配置方法及装置
WO2022226847A1 (zh) 一种直连测距的资源复用方法及其装置
CN116158182A (zh) 一种传输配置指示状态的确定方法及其装置
US20250203493A1 (en) Method and apparatus for requesting system information
WO2024159544A1 (zh) 一种传输块大小的确定方法及其装置
WO2023201497A1 (zh) 一种确定非授权频谱中频域资源的方法及装置
CN115997448A (zh) 频域资源的确定方法及装置
CN116438898B (zh) 物理下行控制信道pdcch处理方法及装置
WO2022236622A1 (zh) 一种寻呼方法及其装置
CN114902773B (zh) 一种发送直连测距信号的方法方法及装置
WO2024212197A1 (zh) 物理下行控制信道pdcch资源配置方法及装置
CN115669188B (zh) 一种侧行链路逻辑信道标识的确定方法及装置
CN115606308B (zh) 一种上行数据的传输方法及其装置
WO2024174142A1 (zh) 通信处理方法及装置

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: 23921720

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202517086285

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2023921720

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 202517086285

Country of ref document: IN

ENP Entry into the national phase

Ref document number: 2023921720

Country of ref document: EP

Effective date: 20250915

WWP Wipo information: published in national office

Ref document number: 2023921720

Country of ref document: EP