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Method of blind detecting transfer patterns

A transmission format and transmission format combination technology, which is applied in the field of transmission format detection, can solve the problems of limiting the application scope of the blind detection method of transmission channels, etc., and achieve the effect of reducing the scope, reducing the amount of calculation, and widening the scope of application.

Active Publication Date: 2006-09-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] From the above blind detection method based on guidance, it can be seen that although this method greatly reduces the complexity of implementation and the amount of calculation, it also greatly limits the above blind detection method for transmission channels due to the need for strict restrictions on the transmission channel. scope of application

Method used

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  • Method of blind detecting transfer patterns

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Embodiment 1

[0045] figure 1 The flow of the method for blind transmission format detection described in Embodiment 1 of the present invention is shown. Such as figure 1 As shown, in the method described in this embodiment, the UE acts as the receiving end of the downlink, and the Node B acts as the receiving end of the uplink to perform the following steps independently:

[0046] Step 11: According to the TFCS configured by the RNC, use a rate matching algorithm to calculate the number of physical channels required by each TFC in the TFCS during transmission, establish a corresponding relationship between the TFC and the number of physical channels, and store it.

[0047] It can be seen from the existing data transmission process that when establishing a service connection, the RNC will configure the information of the uplink and downlink CCTrCH to the corresponding Node B and UE respectively, and the uplink and downlink CCTrCH information includes: the parameters of the transmission cha...

Embodiment 2

[0074] In order to further reduce the complexity of the transmission format detection process described in Embodiment 1 and the calculation amount of decoding and verification, Embodiment 2 of the present invention improves step 14 of the above embodiment, and other steps are the same as Embodiment 1.

[0075] In step 14 of this embodiment, if the TFC candidate set contains multiple TFCs, the receiving end first prioritizes all the TFCs in the TFC candidate set according to the preset TFC prioritization conditions, and then sorts all TFCs in the TFC candidate set according to the priority Firstly, the TFC with high priority is used to decode and CRC the received data, and if the check result is wrong, the TFC with low priority is used to decode and check the received data.

[0076]Since the priority ordering principle described in this embodiment fully considers the characteristics of the service combination of the third generation mobile communication system, therefore, the TF...

Embodiment 3

[0080] According to the regulations of the third generation mobile communication system, for the same transmission channel, the TF within a TTI remains unchanged, and usually, because the detection unit wireless frame length of the transmission format blind detection is smaller than the transmission channel Therefore, the TFC determined according to the current radio frame corresponding to a transport channel TF should be the same as other TFs in the same TTI corresponding to the transport channel.

[0081] For example, according to the transmission channel parameters configured by the RNC, as shown in Table 1, it is known that the TTI of transmission channel 0 is 20 ms, the TTI of transmission channel 1 is 40 ms, and the length of the radio frame is generally 10 ms. Therefore, the corresponding transmission channel 0 Two TFCs should be defined per TTI, while 4 TFCs should be defined per TTI for transport channel 1. Assume that the current wireless frame to be detected is the ...

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Abstract

The method comprises: according to the transport format combination set, calculating the required physical channel number when the transport format combination is used in transmission, and building the corresponding relation between the transport format combination and the physical channel number; when receiving data, detecting the physical channel number actually occupied by current radio frame; according to the corresponding relation between the physical channel number actually occupied by current radio frame and the said transport format combination and the physical channel number, building the transport format combination set corresponding to the current radio frame; after the radio frame is mapped into the coded combination transport channel, according to data message carried on the coded combination channel, finding the transport format combination set corresponding to the current coded transport channel from the transport format combination candidate set.

Description

technical field [0001] The invention relates to the detection technology of the transmission format in the third generation mobile communication system, in particular to a method for blind detection of the transmission format. Background technique [0002] In the third-generation mobile communication system, the data carried on each transmission channel is a data transmission block or a data transmission block set that occurs periodically in a transmission time interval (TTI), and different transmission channels may have different TTIs. In the process of data transmission, the transport channels carrying these data transmission blocks are multiplexed together after channel coding to form a coded composite transport channel (CCTrCH, Coded Composite TransportChannel), and then the physical channel is divided and interleaved in units of CCTrCH , Mapping of transport channels to physical channels and allocation of physical channel resources. [0003] In order to represent the i...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04W24/08H04L1/00
Inventor 吴松
Owner DATANG MOBILE COMM EQUIP CO LTD