Method for combined selecting transmission format of No.3 generation communication system

A technology of transmission format combination and mobile communication system, which is applied in the direction of transmission system, wireless communication, digital transmission system, etc., can solve problems such as not being combined, reduce the scope, reduce the possibility of buffer overflow, and improve the selection speed effect

Inactive Publication Date: 2006-03-22
ZTE CORP
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Problems solved by technology

At present, the patents on TFC selection include the US patent "Wireless network with a selection of transport format combinations" (publication number 20020085531) and "Wireless network having a selection of transport format combinations" (publication number 20020097695), but none of them will configure TFCS and select TFC combined to consider

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  • Method for combined selecting transmission format of No.3 generation communication system

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Embodiment Construction

[0019] In the present invention, at the beginning of each 10ms wireless frame, the MAC layer selects a suitable TF for each active transmission channel. The so-called active transmission channel refers to the beginning of the 10ms wireless frame, which is also the transmission channel where the TTI of the transmission channel starts. One of the frames is active and so on. For the inactive transport channel, its TF needs to keep the TF selected for it in the active radio frame, that is to say, the TF of the active transport channel needs to be selected among those TFCs defined by the TF of the inactive transport channel.

[0020] In the present invention, a TFIC two-dimensional form is obtained according to the configured TFCS as follows:

[0021] TFI10

[0022] In the above table, the row represents the TFI (Transport Format Indicator, transmission format indication) of each channel belonging to the same TFC, and TFI represents the (TFI+1)th TF of a transmission cha...

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Abstract

A method for selecting transmission format combination of third generation mobile communication system, which contains generating two dimension table of transmission format combination according to configured transmission format combination, selecting out transmission format combination in inactive transmission channel and obtaining a sub table of transmission format combination, inquiring transmission block size, number or buffer area occupying percentage in logic channel mapped by each active transmission channel, determining schedule order, combining sub table using transmission format, selecting transmission format for each active transmission channel in said wireless frame. Said invention priority transmits the data in higher priority logic channel or large buffer area occupied logic channel, reduces buffer area overflowing possibility and greatly raises selection speed.

Description

technical field [0001] The invention relates to the air interface of the third generation mobile communication system (3G), in particular to the selection of the air interface transmission format combination (Transport Format Combinations, TFC). Background technique [0002] The 3G air interface refers to an interface between a Universal Mobile Telecommunications System Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, UTRAN) and a User Equipment (User Equipment, UE), referred to as a UU interface. The UU interface is divided into 3 layers, the bottom layer is the physical layer, and the upper layers are the data link layer and the network layer. The data link layer can be divided into MAC layer (Medium Access Control, media access control layer), RLC layer (Radio Link Control, radio link control layer), PDCP layer (Packet Data Convergence Protocol, packet data convergence protocol layer) and BMC layer (Broadcast / Multicast Control, broadcast / multicast...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/04H04L69/14H04W72/12
Inventor 范维光汤德龙郁冰
Owner ZTE CORP
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