US-20260128817-A1 - UPLINK SIGNAL TRANSMISSION METHOD AND RELATED APPARATUS

Abstract

A terminal device receives first information, indicating to perform out-of-order transmission on a plurality of code blocks (CBs) or on a plurality of code block groups (CBGs) each comprising a respective plurality of CBs. The terminal device transmits the plurality of CBs or the plurality of CBGs in a transmission sequence of the plurality of CBs or the plurality of CBGs.

Inventors

• Weilin QU
• Yiling Wu
• Zhe Jin
• Zhihu Luo

Assignees

• HUAWEI TECHNOLOGIES CO., LTD.

Dates

Publication Date

20260507

Application Date

20260105

Priority Date

20230706

Claims (16)

1. 1 . An uplink signal transmission method, comprising: receiving, by a terminal device, first information indicating to perform out-of-order transmission on a plurality of code blocks (CBs) or on a plurality of code block groups (CBGs) each comprising a respective plurality of CBs; and sending, by the terminal device, the plurality of CBs or the plurality of CBGs in a transmission sequence of the plurality of CBs or the plurality of CBGs.
2. 2 . The method according to claim 1 , wherein the out-of-order transmission comprises an interleaved transmission.
3. 3 . The method according to claim 1 , wherein the method further comprises: receiving, by the terminal device, second information, wherein the second information indicates the transmission sequence of the plurality of CBs or the plurality of CBGs; and determining, by the terminal device, the transmission sequence of the plurality of CBs or the plurality of CBGs based on the second information.
4. 4 . The method according to claim 1 , wherein the method further comprises: determining, by the terminal device, one transmission block (TB) which the plurality of CBs or the plurality of CBGs belong to; receiving, by the terminal device, third information, wherein the third information indicates a quantity N of the plurality of CBs or the plurality of CBGs, and N is an integer greater than 1; and dividing, by the terminal device, the TB into N CBs or N CBGs based on the third information.
5. 5 . The method according to claim 1 , wherein the method further comprises: sending, by the terminal device, fourth information, wherein the fourth information comprises at least one of the following: whether the terminal device has a frequency-hopping transmission capability, a frequency hopping range within the carrier or the BWP on which the terminal device operates, a power consumption level of the terminal device, an energy storage level of the terminal device, or a type of the terminal device.
6. 6 . An uplink signal transmission method, comprising: sending, by a network device, first information, indicating to perform out-of-order transmission on a plurality of code blocks (CBs) or on a plurality of code block groups (CBGs) each comprising a respective plurality of CBs; and receiving, by the network device, the plurality of CBs or the plurality of CBGs in a transmission sequence of the plurality of CBs or the plurality of CBGs.
7. 7 . The method according to claim 6 , wherein the out-of-order transmission comprises an interleaved transmission.
8. 8 . The method according to claim 6 , wherein the method further comprises: sending, by the network device, second information, wherein the second information indicates the transmission sequence of the plurality of CBs or the plurality of CBGs.
9. 9 . The method according to claim 6 , wherein the method further comprises: sending, by the network device, third information, wherein the third information indicates a quantity N of the plurality of CBs or the plurality of CBGs, and N is an integer greater than 1.
10. 10 . The method according to claim 6 , wherein the method further comprises: receiving, by the network device, fourth information, wherein the fourth information comprises at least one of the following: whether the terminal device has a frequency-hopping transmission capability, a frequency hopping range within the carrier or the BWP on which the terminal device operates, a power consumption level of the terminal device, an energy storage level of the terminal device, or a type of the terminal device.
11. 11 . The method according to claim 10 , wherein the method further comprises: determining, by the network device, a value of N and/or a size of each of the plurality of CBs or a size of each of the plurality of CBGs based on the fourth information.
12. 12 . A communication apparatus, comprising: at least one processor, and a memory coupled to the at least one processor to store instructions, which when executed by the at least one processor, cause the communication apparatus to: receive first information indicating to perform out-of-order transmission on a plurality of code blocks (CBs) or on a plurality of code block groups (CBGs) each comprising a respective plurality of CBs; and send the plurality of CBs or the plurality of CBGs in a transmission sequence of the plurality of CBs or the plurality of CBGs.
13. 13 . The communication apparatus according to claim 12 , wherein the out-of-order transmission comprises an interleaved transmission.
14. 14 . The communication apparatus according to claim 12 , wherein the communication apparatus is further to: receive second information, wherein the second information indicates the transmission sequence of the plurality of CBs or the plurality of CBGs; and determine the transmission sequence of the plurality of CBs or the plurality of CBGs based on the second information.
15. 15 . The communication apparatus according to claim 12 , wherein the communication apparatus is further to: determine one transport block (TB) that the plurality of CBs or the plurality of CBGs belong to; receive third information, wherein the third information indicates a quantity N of the plurality of CBs or the plurality of CBGs, and N is an integer greater than 1; and divide the TB into N CBs or N CBGs based on the third information.
16. 16 . The communication apparatus according to claim 12 , wherein the communication apparatus is further to: send fourth information, wherein the fourth information comprises at least one of the following: whether the communication apparatus has a frequency-hopping transmission capability, a frequency hopping range within the carrier or the BWP on which the communication apparatus operates, a power consumption level of the communication apparatus, an energy storage level of the communication apparatus, or a type of the communication apparatus.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2024/104067, filed on Jul. 5, 2024, which claims priority to Chinese Patent Application No. 202310831011.3, filed on Jul. 6, 2023. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties. TECHNICAL FIELD This application relates to the communication field, and in particular, to an uplink signal transmission method and a related apparatus. BACKGROUND As internet of things (internet of things, IoT) communication is increasingly widely applied, a quantity of connected IoT devices continuously increases. Consequently, the industry has an increasingly strong requirement for reducing costs and power consumption of the IoT devices. Based on a purpose of connecting all things through the IoT in a 5th generation (5G) mobile communication system, passive internet of things (IoT)/backscatter communication (backscatter) has become an important research direction in the 5G internet of things field. Due to limitations on power consumption and complexity of a passive internet of things terminal device/backscatter communication terminal device, power consumption of this type of terminal device is limited to a range of less than 1 microwatt (μW) or less than 100 μW. In this power consumption range, it is difficult for this type of terminal device to implement complex channel encoding. In a related technology, rate matching is not performed after encoding, which may reduce channel encoding complexity of the terminal device. In this way, a signal encoding requirement of a low-power terminal device is met. However, for a transport block (TB) with a large uplink transmission length, rate matching is not performed after encoding, which greatly affects performance of channel encoding and reduces transmission performance. SUMMARY This application provides an uplink signal transmission method and a related apparatus, to improve transmission performance of transmitting a TB with a large length by a low-power terminal. According to a first aspect, this application provides an uplink signal transmission method. The method may be applied to a terminal device. For example, the method may be performed by the terminal device, or may be performed by a component (for example, a chip or a chip system) configured in the terminal device, or may be implemented by a logical module or software that can implement all or a part of functions of the terminal device. This is not limited in this application. For example, the method includes: receiving first information, where the first information indicates to perform frequency-hopping transmission on a plurality of code blocks (CB) or a plurality of code block groups (CBG), the plurality of CBs or the plurality of CBGs belong to one TB, and one CBG includes a plurality of CBs; and sending the plurality of CBs or the plurality of CBGs on a plurality of frequency domain resources through frequency hopping, where the plurality of frequency domain resources correspond to different frequencies. That the plurality of CBs or the plurality of CBGs belong to one TB may be understood as that one TB is divided into the plurality of CBs or the plurality of CBGs. For example, when one TB is divided into the plurality of CBs, the first information indicates to perform frequency-hopping transmission on the plurality of CBs, and the terminal device sends the plurality of CBs on the plurality of frequency domain resources through frequency hopping. When one TB is divided into the plurality of CBGs, the first information indicates to perform frequency-hopping transmission on the plurality of CBGs, and the terminal device sends the plurality of CBGs on the plurality of frequency domain resources through frequency hopping. It should be understood that different CBGs in the plurality of CBGs may include a same quantity of CBs or different quantities of CBs. It should be further understood that a quantity of the plurality of frequency domain resources is the same as a quantity of a plurality of CBs or a plurality of CBGs that belong to one TB. In an embodiment, the plurality of frequency domain resources may be predefined in a protocol, or may be configured by a network device for the terminal device. For example, when the plurality of frequency domain resources are configured by the network device for the terminal device, the method may further include: receiving second information, where the second information indicates frequency domain positions of the plurality of frequency domain resources; and determining the plurality of frequency domain resources based on the second information. In an embodiment, a to-be-transmitted TB is divided into a plurality of CBs or a plurality of CBGs, and frequency-hopping transmission is performed on the plurality of CBs or the plurality of CBGs. In such a manner of performing frequency-hopping transmission at a CB level, cha