Title:
TTI長再設定の間のWCDMAアップリンクHARQオペレーション
Document Type and Number:
Japanese Patent JP2008510331
Kind Code:
A
Abstract:
A method for minimizing the loss of data and ensuring that large delays do not occur during reconfigurations of an uplink transmission time interval (TTI) length of a WCDMA High Speed Packet Uplink Access (HSUPA) air interface, wherein the reconfiguration of an uplink TTI length is delayed until all pending retransmissions are successfully transmitted or until the maximum number of transmissions is reached. The transmission of new packets during this time period is prevented. However, pending retransmissions are allowed to occur. After the UE has received an ACK/NACK for each HARQ process, or until the specific maximum number of re-transmissions is reached, the UE starts transmitting with a new uplink TTI length.
Inventors:
Pilskanen Yuho
Land-Aho Cali
Toscala Ante
Land-Aho Cali
Toscala Ante
Application Number:
JP2007525368A
Publication Date:
April 03, 2008
Filing Date:
July 18, 2005
Export Citation:
Assignee:
NOKIA CORPORATION
International Classes:
H04Q7/38; H04B1/707; H04J13/00; H04L1/16
Other References:
JPN6010003168, Ｓａｍｓｕｎｇ, "ＨＡＲＱ ｏｐｅｒａｔｉｏｎ ａｔ ＴＴＩ ｒｅｃｏｎｆｉｇｕｒａｔｉｏｎ", ３ＧＰＰ ＴＳＧ ＲＡＮ２＃４６ Ｒ２−０５０３５０, 20050218
JPN6010003171, Ｌｕｃｅｎｔ Ｔｅｃｈｎｏｌｏｇｉｅｓ, "２ｍｓ／１０ｍｓ ＴＴＩ ｓｗｉｔｃｈｉｎｇ", ３ＧＰＰ ＴＳＧ ＲＡＮ２＃４６ Ｒ２−０５０５６６, 20050218
JPN6010003171, Ｌｕｃｅｎｔ Ｔｅｃｈｎｏｌｏｇｉｅｓ, "２ｍｓ／１０ｍｓ ＴＴＩ ｓｗｉｔｃｈｉｎｇ", ３ＧＰＰ ＴＳＧ ＲＡＮ２＃４６ Ｒ２−０５０５６６, 20050218
Attorney, Agent or Firm:
Kawamori Mitsunori