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CN-122002504-A - System message transmission method and device, electronic equipment and storage medium

CN122002504ACN 122002504 ACN122002504 ACN 122002504ACN-122002504-A

Abstract

The present application relates to the field of mobile communications technologies, and in particular, to a method and apparatus for transmitting a system message, an electronic device, and a storage medium, so as to improve transmission efficiency of the system message. The method comprises the steps of sending SSB and other system information OSI according to at least two subcycles in a synchronous signal block SSB sending period, wherein an SSB group corresponding to the subcycle is sent in a first period in the subcycle, a target OSI corresponding to the SSB group is sent in a second period in the same subcycle, and the target OSI comprises OSIs of different types corresponding to indexes of SSB in the SSB group.

Inventors

  • YAN HONG
  • LIU XIANLING
  • TONG JIANFEI
  • XU XIAOFAN
  • HAO XUEKUN

Assignees

  • 上海卫星互联网研究院有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (11)

  1. 1. A method for transmitting a system message, the method comprising: During the transmission period of the synchronization signal block SSB, SSB and other system messages OSI are transmitted in at least two sub-periods, wherein: Transmitting an SSB group corresponding to the subcycle in a first period of time in the subcycle; And transmitting a target OSI corresponding to the SSB group in a second period in the same subcycle, wherein the target OSI comprises OSIs of different types corresponding to indexes of SSBs in the SSB group.
  2. 2. The method of claim 1, wherein there is no overlap of the first period of time and the second period of time, and the first period of time is located before the second period of time.
  3. 3. The method of claim 1, wherein the scheduling position of the target OSI within the second period is determined based on a system message queue corresponding to the sub-period, the system message queue being used to indicate the scheduling order of the different types of OSI.
  4. 4. The method of claim 3, wherein the scheduling location comprises a starting time slot and a first starting system frame number; the first initial system frame number is related to the second initial system frame number where the sub-period is located, the window offset of the time window where the target OSI is located, and the number of frame time slots, where the number of frame time slots is the number of time slots included in a radio frame.
  5. 5. The method of claim 1, wherein the method further comprises: And repeating transmitting the target OSI in other second time periods in the same subcycle.
  6. 6. The method of any one of claims 1-5, wherein at least two of the sub-periods are obtained by dividing SSB burst transmission periods by an integer multiple of the SSB burst transmission period.
  7. 7. The method according to any one of claims 1-5, wherein if there is a time window during the second period in which no OSI is transmitted, the method further comprises: Indicating that the time window is not transmitting OSI is at least one of: defining the system message block type of the time window as invalid; setting the message broadcasting state of the time window to be a null value; and configuring target parameters for other time windows except the time window.
  8. 8. A system message transmission apparatus, comprising: A transmitting unit, configured to transmit SSB and other system messages OSI according to at least two subperiods in a transmission period of the synchronization signal block SSB, where: Transmitting an SSB group corresponding to the subcycle in a first period of time in the subcycle; And transmitting a target OSI corresponding to the SSB group in a second period in the same subcycle, wherein the target OSI comprises OSIs of different types corresponding to indexes of SSBs in the SSB group.
  9. 9. An electronic device comprising a processor and a memory, wherein the memory stores a computer program which, when executed by the processor, causes the processor to perform the steps of the method of any of claims 1 to 7.
  10. 10. A computer readable storage medium, characterized in that it comprises a computer program for causing an electronic device to execute the steps of the method according to any one of claims 1-7 when said computer program is run on the electronic device.
  11. 11. A computer program product comprising a computer program stored on a computer readable storage medium, which when read from the computer readable storage medium by a processor of an electronic device, causes the electronic device to perform the steps of the method according to any one of claims 1-7.

Description

System message transmission method and device, electronic equipment and storage medium Technical Field The present application relates to the field of mobile communications technologies, and in particular, to a method and apparatus for transmitting a system message, an electronic device, and a storage medium. Background In modern communication systems, particularly 5G (5 th-generation) systems, it is important to ensure that User Equipment (UE) can quickly acquire network information and maintain efficient communication. Efficient transmission of system messages and scheduling of synchronization signal blocks (SynchronizationSignal and PBCH block, SSB) are core elements to achieve this goal. In a 5G system, system messages (System Information, SI) are classified into 3 types, minimum system messages (Minimum System Information, MSI), remaining minimum system messages (REMAINING MINIMUM SYSTEM INFORMATION, RMSI), and other system messages (on-DEMAND SYSTEM Information, OSI). RMSI includes a master message block (Master Information Block, MIB) and a system message block 1 (System Information Block Type, SIB 1), which are the most basic information. OSI includes SIB 2-SIB 14, and SIB 15-SIB 21 and positioning system information posSib are added in subsequent versions. In the related art, the scheduling mechanism generally requires that one SI must be completely transmitted before the next SI starts to be transmitted. Specifically, when the SSB period is long, the UE may experience a long waiting time, and cannot acquire updated information in time. This situation is particularly evident in satellite communication systems, where the number of coverage bits is large, up to thousands, and according to the relevant protocol, the FR1/FR2 frequency band supports 8 or 64 SSB indexes at maximum, respectively, and this limitation cannot meet the requirement of wide coverage, so that the SSB transmission period can be extended to hundreds of ms, when there is SI scheduling of multiple types, the same time-frequency resource is used, and the SI period (SI-Periodicity) will be a time unit of second level, far longer than the time of the terrestrial system, and the UE cannot respond quickly to changes, such as the present ephemeris in SIB 19. In addition, in order to transmit OSI as soon as possible in one period, even when a plurality of OSI slots are configured, there is a limit that one SI must be completely transmitted and then the next SI must be transmitted, resulting in low system message transmission efficiency. Disclosure of Invention The embodiment of the application provides a transmission method, a device, electronic equipment and a storage medium of a system message, which are used for improving the transmission efficiency of the system message. The method for transmitting the system message provided by the embodiment of the application comprises the following steps: Transmitting SSB and OSI in at least two sub-periods within an SSB transmission period, wherein: Transmitting an SSB group corresponding to the subcycle in a first period of time in the subcycle; And transmitting a target OSI corresponding to the SSB group in a second period in the same subcycle, wherein the target OSI comprises OSIs of different types corresponding to indexes of SSBs in the SSB group. The device for transmitting the system message provided by the embodiment of the application comprises the following components: A transmitting unit, configured to transmit, in an SSB transmission period, SSB and OSI according to at least two subperiods, where: Transmitting an SSB group corresponding to the subcycle in a first period of time in the subcycle; And transmitting a target OSI corresponding to the SSB group in a second period in the same subcycle, wherein the target OSI comprises OSIs of different types corresponding to indexes of SSBs in the SSB group. Optionally, the scheduling position of the target OSI in the second period is determined according to a system message queue corresponding to the sub-period, where the system message queue is used to indicate the scheduling order of the different OSI types. Optionally, the scheduling location includes a start time slot and a first start system frame number, and the first start system frame number is related to a second start system frame number where the sub-period is located, a window offset of a time window where the target OSI is located, and a number of frame time slots, where the number of frame time slots is the number of time slots included in one radio frame. Optionally, the sending unit is further configured to: And repeating transmitting the target OSI in other second time periods in the same subcycle. Optionally, at least two sub-periods are obtained by dividing the SSB transmission period by taking an integer multiple of the SSB burst transmission period as a unit. Optionally, if there is a time window during the second period in which OSI is not transmitted, the apparatus furt