CN-115604854-B - Data transmission method, terminal and network equipment

Abstract

The invention provides a data transmission method, a terminal and network side equipment, wherein the method comprises the steps that the terminal sends a lead code, first data and second data in an access process, the size of the second data is larger than that of the first data, and time-frequency resources of the second data are determined based on at least one of the lead code, the resource position of the first data, identification information of the terminal and the size of the second data. The invention can reduce the data transmission delay of the terminal.

Inventors

• ZHANG YUJIE
• BAI WEI

Assignees

• 大唐移动通信设备有限公司

Dates

Publication Date

20260512

Application Date

20210707

Claims (20)

1. 1. A data transmission method, comprising: The terminal sends a preamble, first data and second data in an access process, wherein the size of the second data is larger than that of the first data, and the time-frequency resource of the second data is determined based on at least one of the following: The preamble, a resource location of the first data, identification information of the terminal, and a size of the second data.
2. 2. The method of claim 1, wherein the determined time-frequency resources of the second data comprise: And determining time-frequency resources in a preset time-frequency resource set based on at least one of the preamble, the resource position of the first data, the identification information of the terminal and the size of the second data.
3. 3. The method of claim 2, wherein the time domain location of the second data is determined in a set of preset time-frequency resources based on at least one of the preamble, the resource location of the first data, the identification information of the terminal, and the size of the second data, and/or And determining the frequency domain position of the second data in a preset time-frequency resource set based on at least one of the preamble, the resource position of the first data, the identification information of the terminal and the size of the second data.
4. 4. The method of claim 3, wherein the frequency domain position or the time domain position of the second data is determined based on the preamble, the time domain position or the frequency domain position of the second data is determined based on the resource position of the first data, or Determining a frequency domain position or a time domain position of the second data based on a size of the second data, determining a time domain position or a frequency domain position of the second data based on a resource position of the first data, or Determining a frequency domain position or a time domain position of the second data based on the preamble, determining a time domain position or a frequency domain position of the second data based on the identification information of the terminal, or And determining a frequency domain position or a time domain position of the second data based on the size of the second data, and determining the time domain position or the frequency domain position of the second data based on the identification information of the terminal.
5. 5. The method of claim 4, wherein the preamble is associated with a frequency domain location of the second data in the case that the frequency domain location of the second data is determined based on a size of the second data, and/or The resource location of the first data is associated with the frequency domain location of the second data, and/or The preamble, the resource location of the first data and the frequency domain location of the second data are associated.
6. 6. The method of claim 2, wherein the set of preset time-frequency resources comprises a plurality of equally sized frequency domain resources, or And the frequency domain resources with different sizes exist in a plurality of frequency domain resources included in the preset time-frequency resource set, wherein the determined size of the frequency domain resources of the second data is matched with the size of the second data.
7. 7. The method of claim 2, wherein if there are idle time-frequency resources not used by any terminal in the preset time-frequency resource set, and the idle time-frequency resources are used for second data transmission in the access procedure at a certain moment, the idle time-frequency resources are preferentially used for second data transmission in the random access procedure.
8. 8. The method of any of claims 1 to 7, wherein the first data comprises indication information of the second data, the indication information being for indicating at least one of: the size of the second data, whether to send the second data; Or the size of the second data is implicitly indicated by at least one of: the preamble, the resource location of the first data, and the identification information of the terminal.
9. 9. The method according to any of claims 1 to 7, wherein upstream beam directions of transmitting the preamble, the first data and the second data are the same.
10. 10. A data transmission method, comprising: The network side equipment receives a preamble, first data and second data in an access process, wherein the size of the second data is larger than that of the first data, and the time-frequency resource of the second data is determined based on at least one of the following: The preamble, the resource location of the first data, the identification information of the terminal, and the indication information of the second data.
11. 11. The method of claim 10, wherein the determined time-frequency resources of the second data comprise: and determining time-frequency resources in a preset time-frequency resource set based on at least one of the preamble, the resource position of the first data, the identification information of the terminal and the indication information of the second data.
12. 12. The method of claim 11, wherein the time domain location of the second data is determined in a preset set of time-frequency resources based on at least one of the preamble, the resource location of the first data, the identification information of the terminal, and the indication information of the second data, and/or And determining the frequency domain position of the second data in a preset time-frequency resource set based on at least one of the preamble, the resource position of the first data, the identification information of the terminal and the indication information of the second data.
13. 13. The method of claim 12, wherein the frequency domain position or the time domain position of the second data is determined based on the preamble, the time domain position or the frequency domain position of the second data is determined based on the resource position of the first data, or Determining a frequency domain position or a time domain position of the second data based on a size of the second data, determining a time domain position or a frequency domain position of the second data based on a resource position of the first data, or Determining a frequency domain position or a time domain position of the second data based on the preamble, determining a time domain position or a frequency domain position of the second data based on the identification information of the terminal, or Determining a frequency domain position or a time domain position of the second data based on the size of the second data, and determining a time domain position or a frequency domain position of the second data based on the identification information of the terminal; Wherein the size of the second data is indicated by the indication information, or the size of the second data is implicitly indicated by at least one of: the preamble, the resource location of the first data, and the identification information of the terminal.
14. 14. The method of claim 13, wherein the preamble is associated with a frequency domain location of the second data in the event that the frequency domain location of the second data is determined based on a size of the second data, and/or The resource location of the first data is associated with the frequency domain location of the second data, and/or The preamble, the resource location of the first data and the frequency domain location of the second data are associated.
15. 15. The method of claim 11, wherein the set of preset time-frequency resources comprises a plurality of equally sized frequency domain resources, or And the frequency domain resources with different sizes exist in a plurality of frequency domain resources included in the preset time-frequency resource set, wherein the determined size of the frequency domain resources of the second data is matched with the size of the second data.
16. 16. The method of claim 11, wherein if there are idle time-frequency resources not used by any terminal in the set of preset time-frequency resources, the idle time-frequency resources are used for other traffic transmissions.
17. 17. The method of claim 16, wherein the idle time-frequency resources are preferentially used for second data transmission in the access procedure if the idle time-frequency resources are used for second data transmission in the access procedure at a certain time.
18. 18. The method of any one of claims 10 to 17, wherein the indication information is used to indicate at least one of: the size of the second data, whether to send the second data.
19. 19. The method of claim 18, wherein the indication information is contained in the first data.
20. 20. The method according to any of claims 10 to 17, wherein upstream beam directions of the preamble, the first data and the second data are the same.

Description

Data transmission method, terminal and network equipment Technical Field The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a terminal, and a network side device. Background In some communication systems (for example, 5G systems), a four-step random access procedure is supported, in which access of a terminal is achieved by four-step messages between the terminal and a network side device, and a two-step random access procedure in which access of the terminal is achieved by two-step messages between the terminal and the network side device. At present, the terminal always starts to transmit data after the access process is completed, so that the data transmission delay of the terminal is relatively large. Disclosure of Invention The embodiment of the invention provides a data transmission method, a terminal and network side equipment, which are used for solving the problem of relatively large data transmission delay of the terminal. The embodiment of the invention provides a data transmission method, which comprises the following steps: The terminal sends a preamble, first data and second data in an access process, wherein the size of the second data is larger than that of the first data, and the time-frequency resource of the second data is determined based on at least one of the following: The preamble, a resource location of the first data, identification information of the terminal, and a size of the second data. Optionally, the determined time-frequency resource of the second data includes: And determining time-frequency resources in a preset time-frequency resource set based on at least one of the preamble, the resource position of the first data, the identification information of the terminal and the size of the second data. Optionally, determining the time domain position of the second data in a preset time-frequency resource set based on at least one of the preamble, the resource position of the first data, the identification information of the terminal and the size of the second data, and/or And determining the frequency domain position of the second data in a preset time-frequency resource set based on at least one of the preamble, the resource position of the first data, the identification information of the terminal and the size of the second data. Optionally, determining a frequency domain position or a time domain position of the second data based on the preamble, determining a time domain position or a frequency domain position of the second data based on a resource position of the first data, or Determining a frequency domain position or a time domain position of the second data based on a size of the second data, determining a time domain position or a frequency domain position of the second data based on a resource position of the first data, or Determining a frequency domain position or a time domain position of the second data based on the preamble, determining a time domain position or a frequency domain position of the second data based on the identification information of the terminal, or And determining a frequency domain position or a time domain position of the second data based on the size of the second data, and determining the time domain position or the frequency domain position of the second data based on the identification information of the terminal. Optionally, in case the frequency domain position of the second data is determined based on the size of the second data, the preamble is associated with the frequency domain position of the second data, and/or The resource location of the first data is associated with the frequency domain location of the second data, and/or The preamble, the resource location of the first data and the frequency domain location of the second data are associated. Optionally, the preset time-frequency resource set comprises a plurality of frequency domain resources with the same size, or And the frequency domain resources with different sizes exist in a plurality of frequency domain resources included in the preset time-frequency resource set, wherein the determined size of the frequency domain resources of the second data is matched with the size of the second data. Optionally, if there are idle time-frequency resources that are not used by any terminal in the preset time-frequency resource set, and the idle time-frequency resources are used for the second data transmission in the access process at a certain moment, the idle time-frequency resources are preferentially used for the second data transmission in the access process. Optionally, the first data includes indication information of the second data, where the indication information is used to indicate at least one of the following: the size of the second data, whether to send the second data; Or the size of the second data is implicitly indicated by at least one of: the preamble, the resource location of the first dat