Half-Duplex Frequency Band Reconfiguration for Uplink Downlink Capacity
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Solution Overview
Problem
Existing half-duplex communication systems, such as TDD and FDD, have limited cell capacity and struggle to support cases where uplink and downlink capacities are relatively large due to their fixed frequency band configurations.
Innovation Solution
A method and apparatus for configuring a half-duplex frequency band to be used for both uplink and downlink transmission simultaneously, allowing dynamic reconfiguration of frequency bands in user equipment (UE) and network devices, enabling flexible scheduling and increased capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a frequency band is configured as either TDD or FDD with fixed allocation, then implementation is simple and interference is not complex, but cell capacity is limited and cannot support large uplink and downlink capacities simultaneously
Solution Approach 1:
The patent applies dynamics by enabling flexible switching between TDD and FDD modes for half-duplex frequency bands. The network device can dynamically reconfigure a frequency band from traditional single-mode (TDD or FDD) to half-duplex mode, allowing the system to adapt transmission direction (uplink/downlink) flexibly while maintaining implementation simplicity. This dynamic reconfiguration resolves the contradiction by enabling large cell capacity without complex interference management.
2Ease of operation
If traditional TDD or FDD configuration is used, then the system is easy to operate, but it cannot support cases where both uplink and downlink capacities are relatively large
Solution Approach 1:
The patent applies universality by making frequency bands multi-functional. A half-duplex frequency band can serve both as uplink and downlink transmission medium within the same cell, unlike traditional TDD or FDD where frequency bands are dedicated to single direction. The network device configures indication information to enable this dual functionality, allowing the same frequency band to be used for both uplink and downlink transmissions, thereby supporting large capacities in both directions while maintaining ease of operation through standardized configuration procedures.
Data Source
AI summary
A frequency band configuration apparatus and method of a half-duplex system and a communication system. The method includes: determining a half-duplex frequency band, and receiving configuration information of the half-duplex frequency band; and receiving indication information for reconfiguring the half-duplex frequency band transmitted by a network device; the indication information indicates that the half-duplex frequency band is used for both uplink transmission and downlink transmission. Hence, it is supported that the half-duplex frequency band can be configured as both an uplink frequency band and a downlink frequency band at the same time, a cell capacity is not limited too much, and cases where uplink and downlink capacities are relatively large can be well supported.