Joint Layer 3 Signaling Coding for Multicarrier Wireless Systems
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Solution Overview
Problem
Conventional approaches for encoding and transmitting layer 3 control information in multicarrier wireless communication systems are inefficient and complex, especially when a user equipment (UE) is configured to monitor multiple component carriers.
Innovation Solution
The method involves jointly encoding layer 3 control information for multiple component carriers and including it in a data transmission on one of the carriers, with the allocation indicated by a control transmission on another carrier, allowing for efficient signaling across multiple carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate control transmissions are encoded and transmitted for each component carrier in multicarrier operation, then each control transmission can be independently linked to data transmissions on respective carriers, but the encoding and transmission process becomes complex and inefficient
Solution Approach 1:
The patent combines separate control transmissions for multiple component carriers into a single joint control transmission. The base station encodes control information for multiple carriers (e.g., five component carriers) together in one transmission, rather than sending five separate control transmissions. This merging approach maintains the ability to independently schedule data on each carrier while eliminating the complexity of processing multiple separate control messages at the UE side.
Solution Approach 2:
The joint control transmission serves multiple functions simultaneously: it provides control information for multiple component carriers, enables cross-carrier scheduling, and reduces overall signaling overhead. A single control transmission structure is designed to universally handle control information for N component carriers, making the system more efficient without sacrificing the flexibility needed for independent carrier management.
2Adaptability or versatility
If separate control transmissions are used for multiple component carriers, then each carrier can have its own control information, but the signaling overhead increases
Solution Approach 1:
Multiple control messages that would otherwise be transmitted separately are merged into a single joint control transmission. The control information for multiple component carriers is packaged together, reducing the total number of transmissions and associated overhead while preserving the ability to address each carrier specifically through appropriate signaling fields within the joint message.
3Ease of manufacture
If conventional encoding approaches are used for layer 3 control information in multicarrier systems, then implementation is straightforward, but efficiency is reduced
Solution Approach 1:
The patent introduces dynamic joint encoding capabilities that adapt to the number of active component carriers. The system can dynamically adjust the joint control transmission format based on how many carriers are currently in use (from 1 to 5 carriers), allowing efficient resource utilization while maintaining a unified encoding approach that is more productive than static separate encoding methods.
Data Source
AI summary
Systems and methodologies are described that facilitate encoding layer 3 control information in a multicarrier wireless communication environment. The layer 3 control information can be jointly encoded for a plurality of component carriers. Further, the jointly encoded layer 3 control information for the plurality of component carriers can be included in a data transmission (e.g., PDSCH, PUSCH, . . . ) sent on a component carrier from the plurality of component carriers. Moreover, an allocation for the data transmission on the component carrier can be indicated by a control transmission (e.g., PDCCH, . . . ). For example, the control transmission and the data transmission, which can be scheduled by the control transmission, can be sent on a common component carrier or different component carriers from the plurality of component carriers (e.g., same carrier signalling or cross-carrier signalling can be implemented, . . . ).