RADIO LINK CONTROL REASSEMBLING TECHNIQUES IN WIRELESS SYSTEMS

Title:

RADIO LINK CONTROL REASSEMBLING TECHNIQUES IN WIRELESS SYSTEMS

Document Type and Number:

WIPO Patent Application WO/2019/029619

Kind Code:

A1

Abstract:

Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a transmitting device may identify a Radio Link Control (RLC) service data unit (SDU) to be transmitted to a receiving device. In some cases, the transmitting device may not have access to sufficient resources to transmit the entire RLC SDU. As such, the transmitting device may segment the RLC SDU into RLC SDU segments, and the transmitting device may transmit the RLC SDU segments to the receiving device. If an RLC layer at the receiving device receives one or more RLC SDU segments out of sequence, the RLC layer may initiate a reassembly (or reordering) timer. The RLC layer may reassemble the successfully received RLC SDU segments to be passed to upper layers. Once the timer expires, the RLC layer may declare that the missing RLC SDU segments are lost.

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Inventors:

ZHENG RUIMING (US)
YU YU-TING (US)
KUBOTA KEIICHI (US)
HORN GAVIN (US)

Application Number:

PCT/CN2018/099621

Publication Date:

February 14, 2019

Filing Date:

August 09, 2018

Export Citation:

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Assignee:

QUALCOMM INC (US)
ZHENG RUIMING (CN)
YU YU TING (US)
KUBOTA KEIICHI (US)
HORN GAVIN BERNARD (US)

International Classes:

H04W28/06

Foreign References:

CN107317760A	2017-11-03
CN101686494A	2010-03-31
US20120275399A1	2012-11-01

Other References:

QUALCOMM INCORPORATED: "RLC UM operation", 3GPP TSG-RAN WG2 MEETING #99 R2-1708952, 25 August 2017 (2017-08-25), pages 1 - 3, XP051318750
HUAWEI ET AL.: "Assembly Timer for RLC Segments", 3GPP TSG-RAN2 MEETING #97BIS R2-1702608, 7 April 2017 (2017-04-07), pages 1 - 3, XP051254177
QUALCOMM INC: "E-mail discussion summary of RLC UM", 3GPP TSG-RAN WG2 NR ADHOC R2-1706794, 29 June 2017 (2017-06-29), XP051301291
See also references of EP 3665939A4

Attorney, Agent or Firm:

NTD PATENT & TRADEMARK AGENCY LIMITED (CN)

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