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Method and device for selecting transport format

A technology of transmission format and selection device, applied in the field of communication, can solve the problems of affecting data decoding performance, deteriorating data transmission quality, different channel signal-to-noise ratio, etc., to achieve the effect of ensuring data transmission quality

Inactive Publication Date: 2012-07-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, in order to realize UL MIMO characteristics, the user equipment will determine the transmission format of the main stream and the auxiliary stream according to the indication information sent by the base station, and the user equipment will transmit the uplink data according to the determined transmission format of the main stream and the auxiliary stream. If the transmission power of the device is insufficient, the quality of data transmission will be degraded. If the user equipment still needs to transmit unauthorized scheduling information through the main stream or auxiliary stream, the channel signal-to-noise ratio of the main stream and the auxiliary stream will be different, which will affect the transmission of data. Decoding performance at the receiving end of the base station when decoding

Method used

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  • Method and device for selecting transport format
  • Method and device for selecting transport format
  • Method and device for selecting transport format

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Experimental program
Comparison scheme
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Embodiment 1

[0031] The embodiment of the present invention provides a method for selecting a transmission format, such as figure 1 As shown, the method includes:

[0032] 101. Receive a user equipment transmission format parameter sent by a base station, where the user equipment transmission format parameter includes a primary stream authorization value and an association relationship between a primary stream and a secondary stream.

[0033] Wherein, the mainstream authorization value is scheduling information sent by the base station to the user equipment, and is used to indicate the maximum transmit power that the user equipment can use when sending new data on the mainstream.

[0034] Wherein, the association relationship between the main stream and the auxiliary stream includes the channel quality ratio of the main stream and the auxiliary stream or the block length indicator sequence number offset of the main stream and the auxiliary stream.

[0035] 102. Determine the maximum trans...

Embodiment 2

[0058] The embodiment of the present invention provides a transmission format selection method, which is mainly used in the process of selecting the transmission format of the main stream and the auxiliary stream when the user equipment sends information to the base station. When the data channel transmit power of the main stream and the auxiliary stream are the same, where The data channel is E-DPDCH, such as figure 2 As shown, the method includes:

[0059] 201. Perform calculation according to the preset maximum transmit power value of the user equipment and the association relationship between the main stream and the auxiliary stream, to generate a remaining transmit power value of the user equipment.

[0060] Wherein, the preset maximum transmission power value of the user equipment is related to the type of the user equipment, different types of user equipment can set the value of the maximum transmission power to a different value according to the actual situation, and ...

Embodiment 3

[0085] The embodiment of the present invention provides a transmission format selection method, which is mainly used in the process of selecting the transmission format of the main stream and the auxiliary stream when the user equipment sends information to the base station. When the total transmission power of the channel of the main stream and the auxiliary stream is the same, as Figure 4 As shown, the method includes:

[0086] 301. Calculate according to the association relationship between the main stream and the auxiliary stream, and generate a total power offset difference between the first related channel and the second related channel, where the first related channel is the main stream except the main stream data channel other channels, and the second related channel is other channels on the auxiliary stream except the data channel of the auxiliary stream.

[0087] Wherein, the first related channel includes: DPCCH, DPDCH, HS-DPCCH, E-DPCCH. The second related channe...

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Abstract

The invention discloses a method and a device for selecting a transport format, relating to the field of communication. The transport formats of a main stream and an auxiliary stream are determined according to the maximal emission power of user equipment and channel quality difference between the main stream and the auxiliary stream and the data transmission quality is ensured. The method, disclosed by the invention, comprises the following steps: receiving a transport format parameter of the user equipment transmitted by a base station, wherein the transport format parameter of the user equipment comprises a main stream authorized value and an association relationship between the main stream and the auxiliary stream, determining the maximal transmission block length of the main stream according to the preset maximal emission power value of the user equipment and the association relationship between the main stream and the auxiliary stream, determining actual transmission block length of the main stream according to size relationship of theoretical transmission block length of the main stream and the maximal transmission block length, and determining the transmission block length of the auxiliary stream according to the actual transmission block length of the main stream and the association relationship between the main stream and the auxiliary stream. The embodiment of the invention is mainly applied to a selection process of the transport formats of user equipment uplink data in a multi-antenna system.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for selecting a transmission format. Background technique [0002] Currently, 3GPP (the 3rd Generation Partnership Project) will introduce the UL MIMO (Uplink Multiple Input Multiple Output) feature to enable user equipment to transmit uplink data to the base station through the mainstream and secondary streams. The data includes scheduling authorization service data and non-scheduling authorization service data. In the prior art, in order to realize UL MIMO characteristics, the user equipment will determine the transmission format of the main stream and the auxiliary stream according to the indication information sent by the base station, and the user equipment will transmit the uplink data according to the determined transmission format of the main stream and the auxiliary stream. If the transmission power of the device is insufficient, the quality of data transmi...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0007H04L1/0015H04L1/00H04W72/23H04L5/0053H04W24/02
Inventor 杨毅吴更石花梦铁晓磊焦淑蓉
Owner HUAWEI TECH CO LTD