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Increasing capacity in wireless communications

A transmission channel and composite channel technology, applied in the field of digital communication, can solve problems such as reducing system capacity and excessive transmission power

Active Publication Date: 2012-09-12
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although symbol redundancy techniques can allow accurate recovery of information bits in the presence of noise on the channel, this technique becomes over-performing when the overall system transmit power becomes underperformed when the signal reception is good.
Such overreach may undesirably reduce system capacity, that is, the number of users the system can reliably support at any given time

Method used

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  • Increasing capacity in wireless communications
  • Increasing capacity in wireless communications
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Examples

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Embodiment Construction

[0028] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of exemplary embodiments of the present invention and is not intended to represent the only exemplary embodiments in which the present invention can be practiced. The term "exemplary" as used in this description means "serving as an example, instance or illustration" and is not necessarily to be construed as preferred or advantageous over other exemplary embodiments. The detailed description includes specific details in order to provide a thorough understanding of exemplary embodiments of the invention. It will be apparent to those skilled in the art that the exemplary embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the novelty of the exemplary embodiments presented herein.

[0029] In this description and claims, ...

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Abstract

Techniques to increase the capacity of a W-CDMA wireless communications system. In an exemplary embodiment, early termination (400) of one or more transport channels on a W-CDMA wireless communications link is provided. In particular, early decoding (421, 423) is performed on slots as they are received over the air, and techniques are described for signaling (431, 432) acknowledgment messages (ACK's) for one or more transport channels correctly decoded to terminate the transmission of those transport channels. The techniques may be applied to the transmission of voice signals using the adaptive multi-rate (AMR) codec. Further exemplary embodiments describe aspects to reduce the transmission power and rate of power control commands sent over the air, as well as aspects for applying tail-biting convolutional codes (1015) in the system.

Description

[0001] related application [0002] This application is related to U.S. Application No. 12 / 424,050, entitled "Increasing Capacity in Wireless Communications," filed April 15, 2009, which claims priority to the following application Right: U.S. Provisional Application No. 61 / 060,119, filed June 9, 2008, entitled "Apparatus and Methods for Increasing Capacity in Wireless Communications," June 2008 U.S. Provisional Application No. 61 / 060,408, entitled "Apparatus and Methods for Increasing Capacity in Wireless Communications," filed June 10, 2008, and June 13, 2008 U.S. Provisional Application No. 61 / 061,546, entitled "Apparatus and Methods for Increasing Capacity in Wireless Communications," the entire contents of which are incorporated by reference into In this application. technical field [0003] The present invention relates generally to digital communications and, more particularly, to techniques for reducing transmit power and improving the capacity of wireless digital co...

Claims

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Application Information

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IPC IPC(8): H04W16/00
CPCH04L1/0025H04L1/0053H04L1/0067H04L1/0071H04L1/1854H04W52/60H04L1/00H04L5/00
Inventor J·梁M·M·范Y·薛
Owner QUALCOMM INC
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