EP-4742810-A1 - INFORMATION TRANSMISSION METHOD AND APPARATUS, TERMINAL, AND NETWORK DEVICE

Abstract

The present disclosure provides an information transmission method and device, a user equipment and a network device, and relates to the technical field of communications. The information transmission method performed by the UE includes: determining a transmission resource according to a meta bit corresponding to uplink data; wherein the meta bit is a bit stream generated based on encoding the uplink data; detecting feedback information transmitted by a network device for the uplink data, on the transmission resource.

Inventors

• BAI, WEI
• MIAO, DESHAN

Assignees

• Datang Mobile Communications Equipment Co., Ltd.

Dates

Publication Date

20260513

Application Date

20240528

Claims (20)

1. An information transmission method, performed by a user equipment (UE), comprising: determining a transmission resource according to a meta bit corresponding to uplink data; wherein the meta bit is a bit stream generated based on encoding the uplink data; and detecting feedback information transmitted by a network device for the uplink data, on the transmission resource.
2. The method according to claim 1, wherein before determining the transmission resource according to the meta bit corresponding to the uplink data, the method further includes: receiving resource configuration information transmitted by the network device; wherein the resource configuration information is used to indicate at least one transmission resource and an identifier corresponding to each transmission resource; wherein the resource configuration information includes at least one of the following: a quality of slots, a quantity of resources in each slot, time domain symbol resource position, frequency domain resource position, and an orthogonal sequence set.
3. The method according to claim 1 or 2, wherein the determining a transmission resource according to a meta bit corresponding to uplink data, includes: determining a target identifier according to the meta bit corresponding to the uplink data; and determining a resource corresponding to the target identifier as the transmission resource.
4. The method according to claim 3, wherein the determining a target identifier according to the meta bit corresponding to the uplink data, includes: using the meta bit to perform a modulo operation on a total number of transmission resources configured by the network device to obtain the target identifier; or, inputting the meta bit into a preset encoder, and determining an output result as the target identifier.
5. The method according to claim 1 or 2, wherein after detecting the feedback information transmitted by the network device for the uplink data, on the transmission resource, the method further includes: if the feedback information indicates that the network device has not correctly received the uplink data, detecting downlink control information transmitted by the network device by using the meta bit, wherein the downlink control information is used to schedule the UE to retransmit the uplink data.
6. The method according to claim 5, wherein the downlink control information is scrambled with the meta bit.
7. An information transmission method, performed by a network device, comprising: obtaining a transmission resource according to a meta bit transmitted by the UE; wherein the meta bit is a bit stream generated based on encoding the uplink data; and transmitting feedback information of the uplink data to the UE via the transmission resource.
8. The method according to claim 7, wherein before obtaining the transmission resource according to the meta bit transmitted by the UE, the method further includes: transmitting resource configuration information to the UE; wherein the resource configuration information is used to indicate at least one transmission resource and an identifier corresponding to each transmission resource; wherein the resource configuration information includes at least one of the following: a quality of slots, a quantity of resources in each slot, time domain symbol resource position, frequency domain resource position, and an orthogonal sequence set.
9. The method according to claim 7 or 8, wherein the obtaining a transmission resource according to a meta bit transmitted by the UE, includes: determining a target identifier according to the meta bit; and determining a resource corresponding to the target identifier as the transmission resource.
10. The method according to claim 9, wherein the determining a target identifier according to the meta bit, includes: using the meta bit to perform a modulo operation on the total number of transmission resources configured by the network device to obtain the target identifier; or, inputting the meta bit into a preset encoder, and determining an output result as the target identifier.
11. The method according to claim 7 or 8, wherein the transmitting feedback information of the uplink data to the UE via the transmission resource, includes at least one of the following: in case where the transmission resource corresponds to at least two UEs, if it is determined that uplink data of at least one UE among the at least two UEs is not correctly received, transmitting feedback information of the uplink data to the at least two UEs through the transmission resource, wherein the feedback information is used to indicate that the network device has not correctly received the uplink data; in case where the transmission resource corresponds to at least two UEs, if it is determined that the uplink data of at least one UE among the at least two UEs is correctly received, transmitting feedback information of the uplink data to the at least two UEs through the transmission resource, wherein the feedback information is used to indicate that the network device correctly receives the uplink data.
12. The method according to claim 7 or 8, wherein after transmitting the feedback information of the uplink data to the UE via the transmission resource, the method further includes: if it is determined that the uplink data transmitted by the UE is not correctly received, transmitting downlink control information to the UE, wherein the downlink control information is used to schedule the UE to retransmit the uplink data.
13. The method according to claim 12, wherein the downlink control information is scrambled with the meta bit.
14. A user equipment (UE), comprising: a memory, a transceiver, and a processor; wherein the memory is used to store a computer program; the transceiver is used to transmit and receive data under control of the processor; and the processor is used to read the computer program in the memory to perform the following operations: determining a transmission resource according to a meta bit corresponding to uplink data; wherein the meta bit is a bit stream generated based on encoding the uplink data; and detecting feedback information transmitted by a network device for the uplink data, on the transmission resource.
15. The UE according to claim 14, wherein the processor is used to read the computer program in the memory to perform the following operations: receiving resource configuration information transmitted by the network device; wherein the resource configuration information is used to indicate at least one transmission resource and an identifier corresponding to each transmission resource; wherein the resource configuration information includes at least one of the following: a quality of slots, a quantity of resources in each slot, time domain symbol resource position, frequency domain resource position, and an orthogonal sequence set.
16. The UE according to claim 14 or 15, wherein the processor is used to read the computer program in the memory to perform the following operations: determining a target identifier according to the meta bit corresponding to the uplink data; and determining a resource corresponding to the target identifier as the transmission resource.
17. The UE according to claim 16, wherein the processor is used to read the computer program in the memory to perform the following operations: using the meta bit to perform a modulo operation on a total number of transmission resources configured by the network device to obtain the target identifier; or, inputting the meta bit into a preset encoder, and determining an output result as the target identifier.
18. The UE according to claim 14 or 15, wherein the processor is used to read the computer program in the memory to perform the following operations: if the feedback information indicates that the network device has not correctly received the uplink data, detecting downlink control information transmitted by the network device by using the meta bit, wherein the downlink control information is used to schedule the UE to retransmit the uplink data.
19. The UE according to claim 18, wherein the downlink control information is scrambled with the meta bit.
20. A network device, comprising: a memory, a transceiver, and a processor; wherein the memory is used to store a computer program; the transceiver is used to transmit and receive data under control of the processor; and the processor is used to read the computer program in the memory to perform the following operations: obtaining a transmission resource according to a meta bit transmitted by a user equipment (UE); wherein the meta bit is a bit stream generated based on encoding the uplink data; and transmitting feedback information of the uplink data to the UE via the transmission resource.

Description

The present application is filed based on and claims the priority of Chinese Application No. 202310812558.9 filed on July 4, 2023, entitled "information transmission method and device, user equipment and network device", the disclosure of which are incorporated in their entireties by reference herein. TECHNICAL FIELD The present disclosure relates to the field of communication technology, and in particular to an information transmission method and device, user equipment and network device. BACKGROUND Uncoordinated random access and transmission technology is an integrated upgrade of random access technology and multiple access transmission technology. It no longer treats initial access and data transmission as two independent procedures, but integrates them into one procedure to support access and transmission of massive number of terminals, reduce latency, and improve a success rate of access and transmission. For uncoordinated non-orthogonal multiple access technology, there is no UE-specific coordination information between network device (such as the next generation Node B (gNB)) and user equipment (UE), except for coordination information such as master information block (MIB) and system information block (SIB), and there is even no allocated physical layer UE identifier (ID) (such as cell radio network temporary identifier (C-RNTI)). Consequently, the gNB is unable to allocate hybrid automatic repeat request (HARQ-ACK) channel resources for the UE and unable to ensure accurate transmission of feedback information for uplink data (such as physical uplink shared channel (PUSCH)). SUMMARY Embodiments of the present disclosure provide an information transmission method and device, user equipment and network device, which can ensure accurate transmission of feedback information of uplink data in uncoordinated non-orthogonal multiple access. In order to solve the above technical problem, one embodiment of the present disclosure provides an information transmission method, performed by a user equipment (UE), including: determining a transmission resource according to a meta bit corresponding to uplink data; wherein the meta bit is a bit stream generated based on encoding the uplink data;detecting feedback information transmitted by a network device for the uplink data, on the transmission resource. In some embodiments, before determining the transmission resource according to the meta bit corresponding to the uplink data, the method further includes: receiving resource configuration information transmitted by the network device; wherein the resource configuration information is used to indicate at least one transmission resource and an identifier corresponding to each transmission resource;wherein the resource configuration information includes at least one of the following: a quality of slots, a quantity of resources in each slot, time domain symbol resource position, frequency domain resource position, and an orthogonal sequence set. In some embodiments, the determining a transmission resource according to a meta bit corresponding to uplink data, includes: determining a target identifier according to the meta bit corresponding to the uplink data;determining a resource corresponding to the target identifier as the transmission resource. In some embodiments, the determining a target identifier according to the meta bit corresponding to the uplink data, includes: using the meta bit to perform a modulo operation on a total number of transmission resources configured by the network device to obtain a target identifier; or,inputting the meta bit into a preset encoder, and determining an output result as a target identifier. In some embodiments, after detecting feedback information transmitted by a network device for the uplink data, on the transmission resource, the method further includes: if the feedback information indicates that the network device has not correctly received the uplink data, detecting downlink control information transmitted by the network device by using the meta bit, wherein the downlink control information is used to schedule the UE to retransmit the uplink data. In some embodiments, the downlink control information is scrambled with the meta bit. One embodiment of the present disclosure provides an information transmission method, performed by a network device, including: obtaining a transmission resource according to a meta bit transmitted by the UE; wherein the meta bit is a bit stream generated based on encoding the uplink data;transmitting feedback information of the uplink data to the UE via the transmission resource. In some embodiments, before obtaining a transmission resource according to a meta bit transmitted by the UE, the method further includes: transmitting resource configuration information to the UE; where the resource configuration information is used to indicate at least one transmission resource and an identifier corresponding to each transmission resource;wherein the r