Method and apparatus for raising data transmission performance
A data transmission and data technology, applied in the direction of digital transmission system, transmission control/balance, transmission system, etc., can solve the problems of increasing transmission delay, data loss, reducing data transmission performance, etc., to improve performance and ensure service quality , to avoid the effect of data loss
Inactive Publication Date: 2009-01-07
HUAWEI TECH CO LTD
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[0004] But if on the established E-DCH link, after the mobile terminal successfully sends data to Node B, and Node B has not yet sent the received data to the radio network controller (RNC, Radio Network Controller), Node B has received an instruction to delete the E-DCH link. In the existing technology, Node B will directly delete the link, and the data on this E-DCH link that has not been sent to the RNC will be lost In this case, because the mobile terminal has received the ACK signal at this time, the HARQ retransmission considers that the network side has correctly received the data, and will not start retransmission, even if this part of the data can finally pass through the wireless link under the RNC The control (RLC, Radio Link Control) layer detects and retransmits, but because RLC retransmission involves RLC signaling and Iub interface transmission, the retransmission delay exceeds 100ms, so the transmission delay is increased and the performance of data transmission is reduced
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[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.
[0028] The basic idea of the present invention is: before deleting the E-DCH link, first detect whether there is data on the E-DCH link that the mobile terminal successfully sends to Node B but Node B has not yet sent to RNC, if there is, Node B The data is first sent to the RNC, and then the E-DCH link is deleted.
[0029] The method for improving data transmission performance of the present invention will be described in detail below in combination with embodiments.
[0030] see figure 1 , figure 1 It is a flowchart of a method for improving data transmission performance according to an embodiment of the present invention. The process includes the following steps:
[0031] Step 101, when a link is deleted, the RNC carries the E-DCH link in...
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A method for raising data transmission performance includes receiving command to delete intensified special channel E-DCH by base station node B and carrying out detection on E-DCH to be deleted, utilizing E-DCH link to be deleted to send data to RNC then deleting said E-DCH when data being sent successfully to node B by mobile terminal but not being sent to radio network controller RNC by node B yet is detected out that it is existed on E-DCH link. The device for realizing said method is also disclosed.
Description
technical field [0001] The present invention relates to high speed uplink packet access (HSUPA, high speed uplink packet access) technology, in particular to a method and device for improving data transmission performance. Background technique [0002] HSUPA technology is a new technology introduced by the 3rd Generation Mobile Communications System (3GPP, 3rd Generation Mobile Communications System) in the R6 protocol to improve the uplink transmission rate. A series of key technologies such as HARQ, Hybrid Automatic Retransmission Quest) and 2ms short frame transmission realize high-speed data transmission on the uplink. [0003] Compared with Wide-band Code Division Multiple Access (WCDMA, Wide-band Code Devision Multiple Access) R99, a new dedicated transmission channel is added in HSUPA technology, that is, enhanced dedicated channel (E-DCH, Enhanced-Dedicated Channel) to Transmit HSUPA services. In order to achieve fast and correct transmission of HSUPA services, a p...
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IPC IPC(8): H04L12/56H04B7/26H04B7/005H04L1/18
Inventor 姚瑶张劲林秦亚莉
Owner HUAWEI TECH CO LTD