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Scheduling information transmission method of E-DCH

A technology for scheduling information and transmission methods, applied in the field of E-DCH technology, can solve problems such as uplink capacity limitation, low wireless transmission efficiency, and poor wireless link performance, so as to optimize uplink capacity, improve wireless transmission efficiency, reduce The effect of upstream interference

Active Publication Date: 2007-09-12
XFUSION DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0024] In practical application, the above scheme has the following problems: the radio link performance is poor when UE transmits SI alone
[0025] The main reason for this situation is that after the CRC transmission block is interleaved at the physical layer, the probability of continuous bit errors is higher when the transmission block is larger, and the higher order CRC code can detect Continuous bit errors occur, but for the case of 18-bit single transmission SI report, the 24-bit CRC is longer than the 18-bit SI, which causes the CRC itself to increase the BLER of SI transmission, and at the same time makes the wireless transmission efficiency very low. Uplink capacity is limited

Method used

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  • Scheduling information transmission method of E-DCH
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  • Scheduling information transmission method of E-DCH

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0050] For the case of transmitting the SI report alone, in the channel coding and multiplexing of the physical layer, the present invention allows the use of a CRC code less than 24 bits as the check code of the SI report, wherein the order of the CRC code can be 16, 12, One of 8 or 4. For CRC codes whose order can be 16, 12 or 8, the corresponding generator polynomials given by TS 25.212 are as follows:

[0051] g CRC16 (D)=D 16 +D 12 +D 5 +1;

[0052] g CRC12 (D)=D 12 +D 11 +D 3 +D 2 +D+1;

[0053] g CRC8 (D)=D 8 +D 7 +D 4 +D 3 +D+1.

[0054] For a CRC code with an order of 4, its generator polynomial is as follows:

[0055] g CRC4 (D)=D 4 +D 1 +1

[0056] In addition to the fixed use of one of the CRC orders of 16, 12, 8, or 4 for the SI ...

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Abstract

This invention relates to mobile communication technology, disclosesan E-DCH in the transmission of scheduling information and help UE to work when it is used to SI alone. This invention, when UE used to according to the agreement or through a fixed set of high-level agreements related informed of the order of less than 24 CRC code of conduct after the SI sent to the Node B, Node B then check the received SI right or not .The now IE will point out whether the CRC's order is night or not which were added due to RRC NBAP and RNSAP.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to E-DCH technology. Background technique [0002] The 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as "3GPP"), as an important organization in the field of mobile communications, has promoted the standardization of the 3rd Generation Mobile Communications (The Third Generation, referred to as "3G") technology. Its early protocol Both uplink and downlink services in this version are carried on dedicated channels. [0003] With the development of mobile communication technology, 3G technology is also constantly evolving. High Speed ​​Downlink Packet Access (HSDPA for short) and High Speed ​​Uplink Packet Access (HSUPA for short) are important evolutions of 3G technology. Scheduling and retransmission of data packets in HSDPA and HSUPA are controlled by a base station node (Node B). [0004] Among them, HSDPA was introduced into 3GPP ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L29/06
Inventor 刘晟
Owner XFUSION DIGITAL TECH CO LTD
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