Method and device for selecting enhanced transport format combination

A transmission format combination and selection device technology, applied in the field of communication, can solve the problems of reducing the data transmission rate, E-DCH fast closed-loop power control failure, E-DCH wrong solution, etc., to achieve the effect of improving the data transmission rate

Inactive Publication Date: 2011-01-19
ST ERICSSON SEMICON BEIJING
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Problems solved by technology

If the authorized resources allocated by the network are not adjusted in real time according to the wireless environment, it will affect the performance of the High Speed ​​Uplink Packet Access (HSUPA) service. For example, if the network allocates a larger authorized power, the terminal will choose a larger transmission block. But in fact, the network reception effect may be poor, reflected in the Enhanced Dedicated Channel Hybrid A

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

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] In view of the problem that the selection of E-TFC in the prior art cannot adapt to the wireless environment where the terminal is located, the embodiment of the present invention adjusts the transmission block size of the E-DCH according to the block error rate of the E-DCH. When it is high, reduce the size of the transmission block, and increase the size of the transmission block when the error rate is low, so as to improve the effective data transmission rate of the HSUPA service as a whole. In the specific implementation, the block error rate can be counted, and the transmission block size can be adjusted by comparing the block error rate with the threshold value; it is also possible not to count the block error rate, and directly calculat...

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Abstract

The invention provides a method and a device for selecting an enhanced transport format combination. The method comprises the following steps of: determining the size of a transport block of an enhanced dedicated channel (E-DCH) according to an authorization resource when a high speed uplink packet access (HSUPA) service is established; counting acknowledgement indicators received by an E-HICH in the process of the HSUPA service and adjusting the size of the transport block of the E-DCH according to a counting result; and redetermining the size of the transport block according to the changed authorization resource when the authorization resource changes in the process of the HSUPA service. The method and the device can effectively improve the effective data transmission rate of the HSUPA service.

Description

technical field [0001] The invention relates to the field of communication, in particular to a method and device for selecting Enhanced Transport Format Combination (E-TFC). Background technique [0002] According to the existing protocol, when a terminal selects E-TFC, the factors that determine the transport block size of the Enhanced Dedicated Channel (E-DCH) include: the terminal level, the maximum and minimum code rates configured by the network, and the Enhanced Uplink Physical Channel (E-DCH). The power on the PUCH) meets the authorized power allocated by the network and the total transmit power of the terminal is within the allowable range. [0003] Usually, the terminal level and the maximum and minimum code rates are determined, and the total transmission power of the terminal is also less than the maximum transmission power limit. Therefore, in most cases, the selection process of E-TFC is uniquely determined by the authorized resources. If the authorized resourc...

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Application Information

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IPC IPC(8): H04W28/04H04L1/18
Inventor 杨文学谢涛
Owner ST ERICSSON SEMICON BEIJING
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