US-12627396-B2 - Method for sending downlink information, method for receiving downlink information, and device

US12627396B2US 12627396 B2US12627396 B2US 12627396B2US-12627396-B2

Abstract

A method for sending downlink information, including: determining, by a network device, a transport block size scaling (TBS Scaling) processing mode corresponding to first downlink information, the TBS Scaling processing mode comprising a first processing mode or a second processing mode, the first processing mode being a processing mode to perform TBS Scaling, and the second processing mode being a processing mode not to perform TBS Scaling; and, sending, by the network device, the first downlink information in the TBS Scaling processing mode.

Inventors

Qin MU

Assignees

BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20210401

Claims (6)

1 . A method for sending downlink information, comprising: determining, by a network device, a transport block size scaling (TBS Scaling) processing mode corresponding to first downlink information, the TBS Scaling processing mode comprising a first processing mode or a second processing mode, the first processing mode being a processing mode to perform TBS Scaling, and the second processing mode being a processing mode not to perform TBS Scaling; and sending, by the network device, the first downlink information in the TBS Scaling processing mode, wherein the first downlink information is received by a user equipment in a TBS Scaling processing mode, and the TBS Scaling processing mode is determined by the user equipment by: measuring a channel state of a downlink channel, determining a time-frequency resource of a corresponding physical random access channel (PRACH) according to the channel state, and determining the TBS Scaling processing mode according to the time-frequency resource and a corresponding relationship, wherein the corresponding relationship comprising a corresponding relationship between the time-frequency resource and the TBS Scaling processing mode; wherein the method comprises one of: sending a system message comprising a system parameter, wherein the system parameter is a transmission power of the network device, and determining the TBS Scaling processing mode corresponding to the first downlink information comprises one of: in a case of the system parameter being less than or equal to a first set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode: in a case of the system parameter being greater than the first set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode; in a case of the system parameter being greater than a second set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode; or, in a case of the system parameter being less than or equal to the second set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode; sending second downlink information, wherein determining the TBS Scaling processing mode corresponding to the first downlink information comprises one of: in a case of a scaling factor when using TBS Scaling corresponding to the second downlink information being less than or equal to a set factor, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode; or, in a case of a scaling factor when using TBS Scaling corresponding to the second downlink information being greater than the set factor, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode; or receiving first uplink information, wherein determining the TBS Scaling processing mode corresponding to first downlink information comprises: determining the TBS Scaling processing mode corresponding to the first downlink information according to a transmission scheme corresponding to the first uplink information.
2 . The method according to claim 1 , wherein receiving the first uplink information comprises one of: receiving the first uplink information before sending the first downlink information; receiving the first uplink information after sending the first downlink information; or receiving the first uplink information at a same time as sending the first downlink information.
3 . A method for receiving downlink information, comprising: determining, by a user equipment, a transport block size scaling (TBS Scaling) processing mode corresponding to first downlink information, the TBS Scaling processing mode comprising a first processing mode or a second processing mode, the first processing mode being a processing mode to perform TBS Scaling, and the second processing mode being a processing mode not to perform TBS Scaling; and receiving, by the user equipment, the first downlink information in the TBS Scaling processing mode; wherein determining the TBS Scaling processing mode corresponding to first downlink information comprises one of: measuring a channel state of a downlink channel, determining a time-frequency resource of a corresponding physical random access channel (PRACH) according to the channel state, and determining the TBS Scaling processing mode according to the time-frequency resource and a corresponding relationship, wherein the corresponding relationship comprising a corresponding relationship between the time-frequency resource and the TBS Scaling processing mode; in a case of a system parameter in a system message received by the user equipment being less than or equal to a first set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode, wherein the system parameter is a transmission power of a network device; in a case of a system parameter in a system message received by the user equipment being greater than the first set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode, wherein the system parameter is a transmission power of a network device; in a case of a system parameter in a system message received by the user equipment being greater than a second set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode, wherein the system parameter is a transmission power of a network device; in a case of a system parameter in a system message received by the user equipment being less than or equal to the second set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode, wherein the system parameter is a transmission power of a network device; in a case of not receiving third indication information from a network device, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode or the second processing mode, wherein the third indication information is used to indicate information for determining the TBS Scaling processing mode corresponding to the first downlink information; in a case of a scaling factor when using TBS Scaling corresponding to second downlink information received by the user equipment being less than or equal to a set factor, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode; in a case of a scaling factor when using TBS Scaling corresponding to second downlink information received by the user equipment being greater than the set factor, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode; or determining the TBS Scaling processing mode corresponding to the first downlink information according to a transmission scheme corresponding to first uplink information sent by the user equipment.
4 . The method according to claim 3 , wherein in a case of not receiving the third indication information from a network device, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode or the second processing mode comprises: determining the TBS Scaling processing mode corresponding to the first downlink information according to a mode provided in a communication protocol.
5 . A mobile terminal, comprising: a processor; and a memory, configured to store an executable instruction by the processor; wherein the processor is configured to execute the executable instruction in the memory to implement steps of the method for receiving downlink information according to claim 3 .
6 . A network-side device, comprising: a processor; and a memory, configured to store an executable instruction by the processor; wherein the processor is configured to execute the executable instruction in the memory to cause the network-side device to: determine a transport block size scaling (TBS Scaling) processing mode corresponding to first downlink information, the TBS Scaling processing mode comprising a first processing mode or a second processing mode, the first processing mode being a processing mode to perform TBS Scaling, and the second processing mode being a processing mode not to perform TBS Scaling; and send the first downlink information in the TBS Scaling processing mode, wherein the first downlink information is received by a user equipment in a TBS Scaling processing mode, and the TBS Scaling processing mode is determined by the user equipment by: measuring a channel state of a downlink channel, determining a time-frequency resource of a corresponding physical random access channel (PRACH) according to the channel state, and determining the TBS Scaling processing mode according to the time-frequency resource and a corresponding relationship, wherein the corresponding relationship comprising a corresponding relationship between the time-frequency resource and the TBS Scaling processing mode; wherein the network-side device is further cause to perform one of: sending a system message comprising a system parameter, wherein the system parameter is a transmission power of the network device, and determining the TBS Scaling processing mode corresponding to the first downlink information comprises one of: in a case of the system parameter being less than or equal to a first set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode; in a case of the system parameter being greater than the first set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode: in a case of the system parameter being greater than a second set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode; or, in a case of the system parameter being less than or equal to the second set value, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode; sending second downlink information, wherein determining the TBS Scaling processing mode corresponding to the first downlink information comprises one of: in a case of a scaling factor when using TBS Scaling corresponding to the second downlink information being less than or equal to a set factor, determining that the TBS Scaling processing mode corresponding to the first downlink information is the first processing mode; or, in a case of a scaling factor when using TBS Scaling corresponding to the second downlink information being greater than the set factor, determining that the TBS Scaling processing mode corresponding to the first downlink information is the second processing mode; or receiving first uplink information, wherein determining a TBS Scaling processing mode corresponding to first downlink information comprises: determining the TBS Scaling processing mode corresponding to the first downlink information according to a transmission scheme corresponding to the first uplink information.

Description

CROSS REFERENCE TO RELATED APPLICATION The present application is a U.S. National Stage of International Application No. PCT/CN2021/085043, filed on Apr. 1, 2021, the contents of which are incorporated herein by reference in their entireties for all purposes. BACKGROUND Technical Field The present disclosure relates to the field of wireless communication technology, and in particular, to a method and apparatus for sending downlink information, a method and apparatus for receiving downlink information, a device, and a storage medium. Description of the Related Art In a long term evolution (LTE) 4G system, in order to support Internet of thing services, two technologies of a machine type communication (MTC) and a narrow band Internet of thing are proposed. The two technologies are mainly directed to low-rate and high-latency scenarios, such as scenarios of meter reading and environmental monitoring, or the like. For example, NB-IOT can support a maximum rate of several hundreds of K at present, and MTC can support a rate of several M at present. However, with the continuous development of the Internet of thing services, services such as video monitoring, smart home, wearable device, and industrial sensing monitoring are gradually popularized. These services generally require a rate of tens of M to 100 M, while also having relatively high requirements for latency. Therefore, it is difficult for MTC and NB-IOT technology in LTE to satisfy these requirements. Based on this situation, many companies propose redesigning a new user equipment in 5G new radio to cover the requirements of such a terminal Internet of thing device. In the current 3rd generation partnership project (3GPP) standardization, such a new terminal type is called as a Redcap (Reduced capability) user equipment (UE), or referred to as a user equipment based on new radio-lite (NR-Lite). Similar to the Internet of things device in LTE, such user equipment based on 5G NR-Lite generally needs to satisfy the following requirements: low cost, low complexity, coverage enhancement to a certain degree, power saving, etc. SUMMARY According to a first aspect of the embodiments of the present disclosure, there is provided a method for sending downlink information, performed by a network device, including determining a transport block size scaling (TBS Scaling) processing mode corresponding to first downlink information, the TBS Scaling processing mode including a first processing mode or a second processing mode, the first processing mode being a processing mode to perform TBS Scaling, and the second processing mode being a processing mode not to perform TBS Scaling, and sending the first downlink information in the TBS Scaling processing mode. According to a second aspect of the embodiments of the present disclosure, there is provided a method for receiving downlink information, performed by a user equipment, and including determining a transport block size scaling (TBS Scaling) processing mode corresponding to first downlink information, the TBS Scaling processing mode including a first processing mode or a second processing mode, the first processing mode being a processing mode to perform TBS Scaling, and the second processing mode being a processing mode not to perform TBS Scaling; receiving the first downlink information in the TBS Scaling processing mode. According to a third aspect of the embodiments of the present disclosure, there is provided a network side device, including a processor and a memory that is configured to store an executable instruction by the processor. The processor is configured to execute the executable instruction in the memory to implement steps of the above method for sending downlink information. According to a fourth aspect of the embodiments of the present disclosure, there is provided a mobile terminal, including a processor and a memory that is configured to store an executable instruction by the processor. The processor is configured to execute the executable instruction in the memory to implement steps of the above method for receiving downlink information. It should be understood that the above general description and the following detailed description are exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings described here, which are used to provide a further understanding of the embodiments of the present disclosure, constitute a part of the present application. The illustrative embodiments of the embodiments of the present disclosure and the description of them are used to explain the embodiments of the present disclosure, and do not constitute an improper limitation on the embodiments of the present disclosure. In the accompanying drawings: FIG. 1 is a flowchart of a method for sending downlink information according to some embodiments; FIG. 2 is a flowchart of a method for sending downlink information according to some embodiments; FIG. 3