Title:
デジタルネットワークにおけるセグメントを基にするリンク層のための誤り制御機構
Document Type and Number:
Japanese Patent JP4731155
Kind Code:
B2
Abstract:
There is disclosed a method of transmitting data packets from a transmitter to a receiver each having a stack of communication protocol layers which comprises a data Link Layer (LL), by using a Segmentation And Reassembly (SAR) mechanism implemented within a SAR layer intermediate between the LL and an upper layer, as well as an error recovery mechanism implemented within the LL. The SAR mechanism performs, in a transmission direction, the function of segmenting Parent Packets (PPs) handled by the upper layer into consecutive segments of shorter length and the function of providing some segmentation information. The segmentation information comprises, for each segment, a two-level sequence numbering comprising a PP Sequence Number (PPSN) which identifies the PP which said segment belongs to, and a Segment Sequence Number (SSN) which identifies the rank of the segment within the PP. The error recovery mechanism implements a selective retransmission scheme using forward and/or feedback signalling messages which embed the two-level segment numbering.
Inventors:
Christoph Manganese
Roman Lore
Roman Lore
Application Number:
JP2004336111A
Publication Date:
July 20, 2011
Filing Date:
November 19, 2004
Export Citation:
Assignee:
MITSUBISHI ELECTRIC R&D CENTRE EUROPE B.V.
International Classes:
H04L1/18; H04L1/16; H04L29/08; H04L29/10
Domestic Patent References:
| JP8502159A | ||||
| JP11177536A | ||||
| JP10215294A |
Foreign References:
| US20020090005 | ||||
| WO2002032039A1 | ||||
| US20030135640 |
Other References:
M C Chuah, et al.,Performance comparisons of two retransmission protocols for CDMA,Vehicular Technology Conference, 1996. 'Mobile Technology for the Human Race'., IEEE 46th ,1996年,vol.1,p.272-276
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Nakamura Rei
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Nakamura Rei