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Data transmission method

A data transmission method and transmission block size technology, applied in the field of data transmission, can solve problems such as decoding failure, absolute E-TFCI error, and different E-TFCI candidate subsets, and achieve the effect of simplifying processing complexity and avoiding decoding failure

Inactive Publication Date: 2011-07-20
TD TECH COMM TECH LTD
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Problems solved by technology

[0024] The above prior art has the following two defects: On the one hand, Node B needs to judge whether each E-TFC is in a supported state when receiving data, and determine the candidate subset accordingly, which greatly increases the processing complexity of Node B On the other hand, the E-TFCI candidate subsets determined by Node B and UE may be different, which will lead to absolute E-TFCI errors obtained from relative E-TFCI, resulting in decoding failure
When the priority of the logical channel on the UE side changes, because the scheduling information containing the highest priority logical channel ID cannot be reported in time, the POs referenced by the UE side and the Node B side may be different, causing the UE side and the Node B The E-TFCI candidate subsets on the Node B side are different, resulting in E-TFC errors on the Node B side, which eventually lead to unnecessary decoding failures

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[0066] 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 with reference to the accompanying drawings and examples.

[0067] The main idea of ​​the present invention is to compress the existing 128 transport block sizes into 64, so that the 6-bit E-TFCI field on the E-PUCH can fully address the 64 transport block sizes, so as to simplify the reception of the base station The processing complexity of the data, and the purpose of avoiding the decoding failure when the base station receives the data.

[0068] FIG. 1 is a schematic flowchart of the data transmission method of the present invention. Referring to Figure 1, the method includes:

[0069] Step 101: preset 64 kinds of E-TFC, and set the corresponding relationship between E-TFC and E-TFCI;

[0070] Step 102: The sender selects one of the 64 E-TFCs to send data, and sends the E-TFCI corresponding to the selected...

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Abstract

The invention discloses a data transmission method; the method presets 64 types of E-DCH transmission form combinations (E-TFC) and sets the corresponding relation of E-TFC and E-TFCI; a transmitter selects one type transmission form combination from 64 types of E-TFC for data transmission and transmits E-TFCI corresponding to the selected E-TFC to a receiver; the receiver determines E-TFC according to E-TFCI from transmitter and the corresponding relation of set E-TFC and E-TFCI, and decodes the data from the transmitter according to the determined E-TFC. The data transmission method is adopted to simplify the processing complexity in data receiving for base stations and avoid the base stations from failure decoding in data receiving process.

Description

technical field [0001] The invention relates to a high-speed uplink access (HSUPA) technology, in particular to a data transmission method. Background technique [0002] In order to meet the needs of high-speed data services in mobile networks, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system introduces HSUPA technology. HSUPA technology introduces the following channels: [0003] Enhanced Uplink Dedicated Channel (E-DCH), which is an uplink dedicated data channel for carrying data information; [0004] Enhanced Uplink Control Channel (E-UCCH), which is the uplink control channel of E-DCH, is used to carry the uplink control information of E-DCH; [0005] Enhanced Uplink Physical Channel (E-PUCH) is an uplink physical channel. Both E-UCCH and E-DCH are mapped to E-PUCH for transmission, that is, the uplink control information of E-DCH is carried on E-UCCH. -The data information on the DCH is mapped to the E-PUCH for transmission. [0006] The upl...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04B7/26
Inventor 吕平宝王伟华刘壮成建敏
Owner TD TECH COMM TECH LTD
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