PUSCH Frequency Hopping Across Mixed Uplink-Downlink Resources
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Solution Overview
Problem
Existing communication protocols do not adequately address how to perform PUSCH frequency hopping in new frequency-domain resource allocation methods, particularly in scenarios where both uplink and downlink frequency-domain resources coexist in a single time unit, leading to potential failures in PUSCH transmission.
Innovation Solution
The method involves configuring frequency-domain resources in a time unit with both uplink and downlink directions, ensuring the frequency-domain starting positions of PUSCH hops are within available resources, thereby enabling successful frequency hopping across contiguous uplink and downlink resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PUSCH frequency hopping is performed in new frequency-domain resource allocation methods, then communication flexibility and uplink service completion speed are improved, but transmission reliability deteriorates due to potential failures when hopping across downlink resources
Solution Approach 1:
The frequency-domain resources are segmented into uplink resources and downlink resources. The patent applies this by dividing the frequency spectrum into distinct resource blocks, identifying which are designated for uplink transmission and which for downlink, thereby preventing PUSCH hopping from crossing into downlink resources and ensuring reliable transmission while maintaining flexible resource utilization.
2Adaptability or versatility
If both uplink and downlink frequency-domain resources are configured in a single time unit, then communication flexibility is improved, but resource allocation complexity increases
Solution Approach 1:
Different frequency-domain resources within the same time unit are assigned different transmission directions (uplink or downlink). The patent applies this by configuring specific resource blocks with specific directions, allowing the system to flexibly adapt to varying traffic demands while maintaining clear, manageable resource allocation through localized direction assignment rather than system-wide complexity.
Data Source
AI summary
Disclosed are a communication method and apparatus, a terminal device, a network device, and a chip, which relate to the field of communication technology. The method includes the following. Physical uplink shared channel (PUSCH) is sent on a first PUSCH resource; and the PUSCH is sent on a second PUSCH resource, where the second PUSCH resource is obtained by performing frequency hopping on the first PUSCH resource. A frequency-domain starting position of the first PUSCH resource and a frequency-domain starting position of the second PUSCH resource are both located in an available frequency-domain resource, an available frequency-domain resource in a time unit is an uplink frequency-domain resource among multiple frequency-domain resources in the time unit, the plurality of frequency-domain resources comprise at least one uplink frequency-domain resource and at least one downlink frequency-domain resource.