Full-Duplex Wireless Operations via Dual Connectivity
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Solution Overview
Problem
Current wireless communication systems face challenges in enabling efficient half/full-duplex operations in multiple connectivity scenarios, where user equipment (UE) needs to communicate with multiple base stations, as existing technologies often restrict operations to half-duplex mode even when full-duplex capabilities could enhance performance.
Innovation Solution
The implementation of techniques that allow UE to determine and perform half/full-duplex operations based on carrier configurations and capabilities, enabling full-duplex operations by utilizing multiple connections even when individual connections support only half-duplex, through carrier aggregation and dual connectivity configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If half-duplex operations are used in multiple connectivity wireless communications, then device complexity is reduced, but communication efficiency and network capacity are limited
Solution Approach 1:
The patent segments the communication system into multiple independent connections (first connection to first cell, second connection to second cell), allowing each connection to operate independently in half-duplex mode while the overall system achieves full-duplex functionality through coordination between segments
Solution Approach 2:
The patent merges multiple half-duplex connections to achieve full-duplex operation at the system level by having the wireless device transmit on one connection while receiving on another connection simultaneously, combining the capabilities of individual connections to create enhanced overall performance
2Reliability
If full-duplex operations are implemented using multiple connections, then communication performance is enhanced, but the system configuration complexity increases
Solution Approach 1:
The patent implements dynamic determination of duplex mode operation based on carrier configurations and wireless device capabilities, allowing the system to adaptively select between half-duplex and full-duplex modes rather than being fixed, thereby optimizing performance while managing complexity
Solution Approach 2:
The patent changes operational parameters (duplex mode, transmission timing) based on carrier configurations and device capabilities, allowing flexible adjustment of communication parameters to achieve full-duplex performance when conditions permit while falling back to simpler half-duplex operation when necessary
3Productivity
If multiple connectivity operations are used, then network capacity is increased, but interference management becomes more difficult
Solution Approach 1:
The patent segments the communication into separate first and second connections to different cells, allowing independent transmission and reception operations that reduce mutual interference by spatially separating the communication paths
Solution Approach 2:
The patent implements periodic transmission and reception cycles where the wireless device alternates between transmitting on one connection and receiving on another, creating a periodic pattern that manages interference by ensuring one-directional communication at any given time interval
Data Source
AI summary
Certain aspects of the present disclosure relate to communicating using multiple connectivity in a wireless network. A device can communicate with first cell served by a first access point over a first connection and with a second cell served by a second access point over a second connection. Moreover, the device can determine whether to perform a half-duplex operation or a full-duplex operation for communicating with the first cell served by the first access point over the first connection. The device can further determine whether to perform a half-duplex operation or a full-duplex operation for communicating with the second cell served by the second access point over the second connection.