Inter-Base-Station Beamforming Signaling Across Resource Blocks
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently exchanging beamforming information between base stations, which affects the optimization and efficiency of signal transmission.
Innovation Solution
Implementing mechanisms for exchanging beamforming information between base stations using various physical layer modulation and transmission mechanisms, including CDMA, OFDM, TDMA, and hybrid mechanisms like TDMA/CDMA and OFDM/CDMA, with dynamic modulation and coding schemes to enhance radio transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beamforming information is exchanged between base stations using existing wireless communication mechanisms, then communication between base stations is enabled, but the efficiency and optimization of signal transmission is insufficient
Solution Approach 1:
The patent introduces a specific beamforming information exchange mechanism that acts as an intermediary between base stations. This mechanism enables efficient exchange of beamforming information through dedicated signaling protocols, allowing base stations to optimize their signal transmission without direct complex interactions, thus resolving the contradiction between exchange efficiency and transmission optimization.
Solution Approach 2:
The patent employs dynamic parameter adjustment in the beamforming information exchange process. By changing modulation schemes, coding rates, and transmission parameters based on channel conditions and traffic requirements, the system achieves both efficient information exchange and optimized signal transmission, resolving the contradiction between productivity and reliability.
2Productivity
If dynamic modulation and coding schemes are used to enhance radio transmission, then communication efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic modulation and coding schemes that adapt to changing channel conditions and traffic requirements. The system dynamically selects modulation orders and coding rates based on real-time feedback, enabling improved communication efficiency while managing complexity through adaptive rather than static configurations.
Solution Approach 2:
The patent employs preliminary configuration of modulation and coding schemes through pre-defined tables and protocols. By preparing multiple predefined schemes in advance and selecting from them based on channel conditions, the system achieves dynamic adaptation without the full complexity of real-time optimization, resolving the contradiction between productivity improvement and device complexity.
Data Source
AI summary
Methods, apparatus, and systems for wireless communications are disclosed. A first base station may receive one or more message from a second base station. The messages may include downlink beamforming information elements for a downlink cell. Each downlink beamforming information element may be associated with a respective group of resource blocks of a plurality of groups of resource blocks in the downlink cell. The first base station may select a first beamforming codeword for at least one group of resource blocks of the plurality of groups of resource blocks based on the downlink beamforming information associated with the at least one group of resource blocks. The first base station may transmit, to a wireless device, signals on the at least one group of resource blocks employing the first beamforming codeword.