Forwarding Node Transmission Parameter Determination
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Solution Overview
Problem
In New Radio (NR) systems, the high resource and time consumption of forwarding nodes during beam training for downlink and uplink beams between the forwarding node and a terminal leads to decreased resources for information transmission and increased transmission delays, thereby deteriorating forwarding performance.
Innovation Solution
The method involves a forwarding node receiving auxiliary information from a network side device to determine a second transmission channel associated with the first transmission channel, allowing the forwarding node to directly determine the transmission parameter of the first transmission channel based on the second transmission channel's parameter, thereby eliminating the need for separate beam training on downlink and uplink beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam training is conducted separately on downlink and uplink beams between forwarding node and terminal, then transmission parameters can be determined for both channels, but resource consumption and time consumption increase significantly
Solution Approach 1:
The patent merges the separate downlink and uplink beam training processes into a single unified beam training procedure. The network device performs beam training with the terminal, and through this single process, obtains both downlink channel state information (for determining downlink transmission parameters) and uplink channel state information (for determining uplink transmission parameters). This combining of functions eliminates the need for two separate beam training procedures, directly reducing time consumption while ensuring reliable transmission parameter determination for both channels.
2Measurement precision
If separate beam training is performed for downlink and uplink channels, then accurate transmission parameters are obtained, but resources available for information transmission decrease
Solution Approach 1:
The patent combines the resource utilization for downlink and uplink beam training into a single resource allocation. Instead of dedicating separate time-frequency resources for downlink beam training and separate resources for uplink beam training, the system allocates a single set of resources for the unified beam training process. This merging of resource requirements doubles the resources available for actual information transmission while maintaining accurate measurement of both downlink and uplink channel states through the unified training procedure.
3Reliability
If separate beam training procedures are used for downlink and uplink, then channel-specific optimization is achieved, but forwarding performance deteriorates due to increased delay
Solution Approach 1:
The patent implements preliminary action by performing a single unified beam training procedure that pre-determines both downlink and uplink transmission parameters before actual information forwarding begins. The network device completes the beam training and obtains channel state information for both directions in advance, storing these parameters for subsequent use. This preliminary unified training eliminates the need for sequential training before each downlink and uplink transmission, reducing forwarding delay while maintaining channel-specific optimization through dedicated parameter determination for each direction.
Data Source
AI summary
This application provides a method and apparatus for determining a transmission parameter, a network side device, and a medium. The method for determining a transmission parameter of embodiments includes: receiving, by a forwarding node, auxiliary information from a first network side device; determining, by the forwarding node, a second transmission channel associated with the first transmission channel according to the auxiliary information; and determining, by the forwarding node, a transmission parameter of the first transmission channel according to a transmission parameter of the second transmission channel. The auxiliary information is configured to indicate information related to a first transmission channel. The first transmission channel is an uplink channel or a downlink channel whose radio signal is to be forwarded between the forwarding node and a terminal. A transmission direction of the second transmission channel is different from a transmission direction of the first transmission channel.