Hybrid FDD/SDD-WCDMA system architecture: joint power control and space diversity for demand access channels
Bibliographic record
Abstract
We present a hybrid FDD/SDD-WCDMA system architecture for supporting symmetric and asymmetric data users, with the former served by a cellular network and the latter served by broadcast systems. The asymmetric data users employ packet-mode access to transmit demand messages in relatively short bursts and are silent at other times, whereas the symmetric data users employ circuit-mode access. This imposes a significant challenge for performance optimization since accessing asymmetric data users can degrade the performance of currently active symmetric data users by introducing extra interference variations which reduce system capacity. We study the implementation and performance of a special version of iterative SIR-based power control algorithms in which currently active symmetric data users are protected from interference by accessing asymmetric data users. Moreover, as the accessing asymmetric data users are expected to have short duty cycles on the cellular network's reverse link, significant overhead may be required for iterative power control. We thus investigate the use of space diversity schemes to help reduce the high iteration overhead and access their performance jointly with the proposed iterative SIR-based power control algorithm.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".