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Carrier Timing for Wireless Communication Systems

A wireless communication system and carrier technology, applied in wireless communication, transmission system, multi-frequency code system, etc., can solve the problems of complicated carrier reception and decoding, not satisfying HSDPA multi-carrier transmission, etc.

Active Publication Date: 2014-10-15
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the establishment and maintenance of control channels (HS-SCCH-high-speed shared control channel, HS-SICH-high-speed shared information channel) and traffic channels (HS-DSCH-high-speed downlink shared channel) are simpler in single-carrier HSDPA systems, But it does not meet the requirements of HSDPA multi-carrier transmission
The use of multiple carriers in a communication system results in complex carrier reception and decoding at both Node B and UE

Method used

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  • Carrier Timing for Wireless Communication Systems
  • Carrier Timing for Wireless Communication Systems
  • Carrier Timing for Wireless Communication Systems

Examples

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Embodiment Construction

[0029] 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 such aspects may be practiced without these specific details.

[0030] As used in this application, the terms "component," "module," "system," etc., are intended to include computer-related entities such as, but not limited to, hardware, firmware, a combination of hardware and software, software, or an software. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both applications running on a computing device and the computing device itself can be components. One or more components can reside within a process and / or thread of execution and a component can be lo...

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Abstract

The present invention discloses synchronization of uplink carriers for transmission according to different aspects. The uplink carriers used to transmit the information are configured such that at least one uplink carrier is the anchor carrier. When multiple carriers are thus configured for uplink, they are synchronized so that they have a predetermined phase relationship with each other. The predetermined phase relationship between the multiple carriers depends on the transmission timing of the anchor carrier, or a combination of the transmission timing of the anchor carrier and the transmission timing of one or more non-anchor carriers included in the uplink carrier.

Description

[0001] This patent application claims priority to Provisional Application No. 61 / 160,987, filed March 17, 2009, entitled "UE CROSS-CARRIER TRANSMIT TIMING SYNCHRONIZATION IN MULTI-CARRIER HSUPA," which is assigned to the present assignee of the application, which is hereby expressly incorporated by reference. technical field [0002] The following description relates generally to wireless communication systems and, more specifically, to carrier timing. Background technique [0003] Wireless communication systems have been widely deployed to provide various types of communication content such as voice, data, and so on. These systems may be multiple-access systems that can support communication with multiple users by sharing available system resources (eg, bandwidth and transmit power). Examples of these multiple access systems include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L27/2601H04B1/707H04L7/00H04L27/26H04W56/00
Inventor D·张A·戈尔米侯纪磊B·P·莫汉蒂
Owner QUALCOMM INC