Title:
ハンドオーバの間のダウンリンクにおけるパケットデータ収束プロトコル(PDCP)サービスデータユニットの順序どおりの配信
Document Type and Number:
Japanese Patent JP5054196
Kind Code:
B2
Abstract:
Systems and methods that manage effects of discarded SDUs during handover. Aspects of the subject innovation maintain order for arrival of PDCP SDUs when a UE encounters a lost PDCP, which has resulted from a dropped SDU at the source eNB-before assignment of an associated PDCP SN. By initially assigning all SDUs corresponding PDCP SNs, a PDCP SN gap or hole can then be encountered upon dropping of a PDCP SDU. To manage PDCP SN gaps or holes thus generated, an internal time out can be designated to terminate an associated UE's delay for such SN hole(s) via a time out. Other aspects enable the source eNB to send a PDCP Status Message to the UE (via the target eNB) to abort the SN gaps or holes resulting from a dropped PDCP SN.
Inventors:
Ho, Sai Yi Duncan
Application Number:
JP2010528093A
Publication Date:
October 24, 2012
Filing Date:
October 01, 2008
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04W36/02; H04W76/02
Domestic Patent References:
| JP2003018207A | ||||
| JP2004179917A | ||||
| JP2003111148A | ||||
| JP2006246539A |
Other References:
Samsung,Downlink data forwarding for mobility,R3-071367,フランス,3GPP,2007年 8月24日,paragraph 4,5,URL,http://www.3gpp.org/ftp/tsg_ran/WG3_Iu/TSGR3_57/docs/R3-071367.zip
NEC,The DL Data forwarding,R3-071337,フランス,3GPP,2007年 8月24日,paragraph 3,URL,http://www.3gpp.org/ftp/tsg_ran/WG3_Iu/TSGR3_57/docs/R3-071337.zip
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Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen