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Telecommunications method

A communication method and technology of communication equipment, applied in the field of communication systems, can solve the problems of less transmission power, lower transmission efficiency, lower system capacity, etc., and achieve the effect of avoiding abnormal TPC behavior

Inactive Publication Date: 2015-04-15
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps prevent errors that may occur when sending data over wireless networks due to incorrect timing instructions from earlier stages. It also reduces the chance for these mistakes being mistakenly identified during transmissions between devices.

Problems solved by technology

Technical Problem: Overall, Layer Controller Physique Code (LC code) refers to any type of signal known between devices connected together over wireless networks such as Time Division Multiplex Access (TDMA)). It describes different types of signals involved in improving network performance and reliability. One important factor being addressed is whether the timing advance value associated with each symbol needs to match up correctly without causing errors even though they could occur simultaneously.

Method used

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Experimental program
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Embodiment I

[0029] Embodiment I of the present invention reduces the probability of misjudging the early termination indication by increasing the signal strength of the early termination indication. For example, the early termination indication may be sent at a higher power than other normally transmitted signals such that the signal-to-noise ratio of the transmission of the early termination indication , SNR) can be improved. Therefore, the probability of false positive early termination indications and negative early termination indications is reduced due to more reliable signaling.

Embodiment II

[0031] Embodiment II of the present invention reduces the probability of erroneously confirming the early termination indication by sending at least two consecutive confirmation early termination indications. Please refer to Figure 4 , in slot 19 of the DL DPCCH, the Node B sends an acknowledgment early termination indication to the UE in response to a successful decoding attempt, to inform the UE to stop sending the remaining part of the UL data. However, the UE misjudges the acknowledgment of the early termination indication as not requiring the early termination indication. Therefore, the UE continuously sends the rest of the UL data to the Node B in slots 19-20 of the UL DPDCH, and sends a TPC command to the Node B in slot 20 of the DPCCH. Then, in slot 21 of the DL DPCCH, the Node B sends an Acknowledgment Early Termination indication again and is correctly identified by the UE. Therefore, the UE stops sending the remaining part of the UL data. Thus, all DPDCHs and DP...

Embodiment IIIA-III

[0034] Embodiments IIIA and IIIB of the present invention reduce the probability of erroneously confirming the early termination indication by using different channels to transmit the termination signal.

[0035] Please refer to Figure 5A , in time slot 13 of the UL DPCCH, the UE first sends an ACK early termination indication, and the Node B correctly recognizes the ACK early termination indication. Then, in slot 19 of the DL DPCCH, the Node B sends an acknowledgment early termination indication based on a successful decoding attempt, but the UE misjudges the indication. Since the Node B determines that both the DL and UL data have been successfully decoded, the Node B terminates the DL DPCCH. However, due to a misjudgment, the UE considers that the UL data has not been successfully decoded by the Node B, and thus continuously sends the remaining part of the UL data. Since the UE is still trying to obtain the non-existent TPC command, the above-mentioned abnormal TPC perio...

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Abstract

Disclosed herein are various embodiments of methods to avoid abnormal transmit power control (TPC) behaviors occurring in a telecommunications system. Disclosed embodiments reduces the probability of misjudging an early termination indicator to avoid a telecommunications device from deriving improper TPC commands or alleviates the influence caused by improperly power control when a telecommunications device derives improper TPC commands.

Description

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Claims

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Application Information

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Owner MEDIATEK INC
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