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Control channel resource allocation and blind detection method

A technology for controlling channel resources and blind detection, applied in wireless communication, electrical components, etc., to achieve the effect of simple implementation, reduced complexity, and reduced blind detection times

Inactive Publication Date: 2012-11-14
ZTE CORP
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Problems solved by technology

[0003] In order to reduce the complexity of blind detection of CCE by users, it is necessary to reduce the number of blind detection of CCE by users as much as possible without reducing the system performance. At present, there is no good solution for improving the performance of blind detection of CCE Method

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  • Control channel resource allocation and blind detection method

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Embodiment Construction

[0022] The control channel resource allocation method of the present invention is as follows: figure 1 shown, including the following:

[0023] Step 110, divide the users of the current system into two groups according to certain rules, group A and group B;

[0024] This grouping scheme is aimed at regrouping users in different blind detection ranges based on the current grouping, that is, users in the same blind detection range are divided into two groups according to the allocation rules. The detection range divides the users into three groups, and the grouping in step 110 is based on this, and each group is further divided into two groups.

[0025] This kind of rule can be public information, that is, information known to both the system and the user end, for example, it can be based on the parity of the user ID, or the parity of the number of CCEs occupied by the user, or other rules or public information.

[0026] Step 120, sequentially numbering all CCEs;

[0027] Ste...

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Abstract

The invention provides a method for controlling the channel resource distribution and the blind detection, comprising the following steps: (a) dividing the users into two groups, and encoding the control channel unit CCE; (b)distributing the CCE resource in the large-small order for the user in any group in the two groups of users, and distributing the CCE resource in the large-small order for another group of users; (c) when the user processes the blind detection for the CCE, confirming the group of the user and staring the blind detection in the small-large order for the CCE code according to the CCE resource distributing way for the group of the user, or staring the blind detection in the small-large order of the CCE code. The invention can reduce the blind detecting times for the users and reduces the complication of the user terminal. In addition, the invention is simple to achieve without increasing the extra system expenses.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular to a control channel resource allocation method and a blind detection method of a blind detection system such as an LTE (Long Term Evolution, Long Term Evolution) system. Background technique [0002] The LTE system defines PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel), PCFICH (Physical Control Format Indicator Channel, Physical Control Format Indicator Channel) and PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) in the downlink ) and other physical channels, wherein the PCFICH indicates the number of OFDM (orthogonal frequency division multiplexing) symbols occupied by the PDCCH in one subframe. The LTE system defines basic units of a physical downlink control channel, and these units include a fixed number of physical subcarriers, called CCE (Control Channel Element, Control Channel Element). The base station a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04W88/02
Inventor 戴博谢大雄郁光辉田刚
Owner ZTE CORP
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