System and method for multi-point HSDPA communication utilizing a multi-link PDCP sublayer

A downlink, wireless communication technology, applied in the transmission link error control system, using the return channel for error prevention/detection, using the signal quality detector for error detection/prevention, etc., can solve the unnecessary retransmission of packets, etc. question

Inactive Publication Date: 2013-07-10
QUALCOMM INC
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  • System and method for multi-point HSDPA communication utilizing a multi-link PDCP sublayer
  • System and method for multi-point HSDPA communication utilizing a multi-link PDCP sublayer
  • System and method for multi-point HSDPA communication utilizing a multi-link PDCP sublayer

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[0030] The following detailed description in conjunction with the accompanying drawings is intended to be an illustration of various configurations, rather than to indicate that the design concept described herein can only be realized through these configurations. The detailed description includes specific details for the purpose of providing a thorough understanding of various design concepts. It will be apparent, however, to one skilled in the art that these design concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring these design concepts.

[0031] Aspects of the present application provide a PDCP layer protocol that addresses issues related to skew (ie, packets that may arrive out of order in wireless communication networks implementing soft aggregation). Here, the PDCP layer is located on multiple RLC links, and one RLC link per cell is aggregated at th...

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Abstract

A method and apparatus for wireless communication may provide a multi-link PDCP sublayer (710) in a radio network controller (702) capable of allocating PDCP PDUs among a plurality of RLC entities (712) for use in a multi -point HSDPA network. Some aspects of the disclosure address issues relating to out-of-order delivery of the PDCP PDUs to a UE (610), such as unnecessary retransmissions. That is, the disclosed multi-link PDCP (710) may be capable of distinguishing between sequence number gaps that are caused by physical layer transmission failures and those caused merely by skew.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to and benefit of Provisional Patent Application No. 61 / 411,245 filed in the United States Patent and Trademark Office on November 8, 2010, which is hereby incorporated by reference in its entirety. technical field [0003] In general, aspects of the present application relate to wireless communication systems, and in particular, to PDCP layer algorithms for managing packets sent on multiple downlink cells for aggregation. Background technique [0004] Wireless communication networks are widely deployed to provide various communication services such as telephony, video, data, messaging, broadcast, and so on. These networks, which are usually multiple-access networks, can support communication for multiple users by sharing available network resources. One example of such a network is the UMTS Terrestrial Radio Access Network (UTRAN). UTRAN is the Radio Access Network (RAN) defined as p...

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Application Information

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IPC IPC(8): H04L1/18H04L25/14H04W28/10
CPCH04L1/08H04L1/1867H04L1/20H04L2001/0092H04W24/10H04W28/10H04W88/06H04L1/18
Inventor D·张R·卡普尔B·P·莫汉蒂W·葛侯纪磊
Owner QUALCOMM INC
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