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Mapping uplink acknowledgement transmission based on downlink virtual resource blocks

A technology of downlink and physical downlink, which is applied in the field of frequency, time and code synchronization of uplink of user equipment, and can solve problems such as failure to work normally and failure to work

Active Publication Date: 2014-11-26
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method will not work properly if the PDCCH is used for multiple users via the VoIP bitmap (aka grouped PDCCH)
For continuous assignment, this approach doesn't work, at least not without cumbersome improvements

Method used

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  • Mapping uplink acknowledgement transmission based on downlink virtual resource blocks
  • Mapping uplink acknowledgement transmission based on downlink virtual resource blocks
  • Mapping uplink acknowledgement transmission based on downlink virtual resource blocks

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Embodiment Construction

[0032] An acknowledgment (ACK) mapping automation that can reduce overhead for wireless communication systems by providing mapping of uplink (UL) locations (i.e., modulation locations in time, frequency, and code) based on downlink (DL) allocations. These wireless communication systems are eg UTRAN-LTE, Global System for Mobile Communications (GSM: originally from Groupe Special Mobile), High Speed ​​Downlink Packet Access (HSDPA) or any packet switched system. Various aspects utilize selected combinations of implicit and explicit mappings for dynamic and persistent scheduling of user equipment (UEs).

[0033] Various aspects are now described with reference to the figures. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that these aspects may be practiced without these specific details. In other instances, well-known structures ...

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Abstract

An acknowledgment (ACK) mapping automation that reduces overhead for a wireless communication systems such as UTRAN-LTE, Global System for Mobile communications (GSM: originally from Groupe Special Mobile), High-Speed Downlink Packet Access (HSDPA), or any packet-switched system, by providing a mapping of uplink (UL) location (i.e., modulation location in time, frequency, and code) based upon a downlink (DL) allocations. Aspects address dynamic and persistent scheduling of user equipment (UE) with a selected combination of implicit and explicit mapping.

Description

[0001] Priority claims under 35 U.S.C. §119 [0002] This patent application claims Provisional Application No. 60 / 886,889, filed January 26, 2007, entitled "Reduced ACK Overhead for Orthogonal Systems," and filed February 5, 2007, entitled "Mapping of UL ACK Transmission Based Upon 60 / 888,233 Provisional Application DL VRBS". Both applications are assigned to the assignee of the present invention. All of them are hereby expressly incorporated by reference. technical field [0003] Exemplary, non-limiting aspects described herein relate to wireless communication systems, methods, computer program products and apparatuses. In particular, it relates to techniques for achieving uplink frequency, time and code synchronization for user equipment. Background technique [0004] Wireless communication systems are widely deployed to provide various communication content, such as voice, data, and so on. These systems may be multiple-access systems, capable of supporting communicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16
CPCH04L1/1607H04L5/0053H04L5/0091H04L27/2613H04L5/0064H04L1/1812H04L5/0016H04L5/0023H04L1/16H04W72/12
Inventor D·P·马拉蒂
Owner QUALCOMM INC