Method and equipment for controlling information activation detection

A technology for control information and activation detection, which is applied in the direction of error prevention/detection, wireless communication, network traffic/resource management, etc. using the return channel, which can solve the missed transmission of traffic channel data and cannot effectively distinguish whether the UE has sent control Information, false detection and other problems, to achieve the effect of ensuring normal transmission, reducing the probability of false detection, and reducing the probability of missed transmission

Active Publication Date: 2011-08-03
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

However, when the control information should be sent, the sender does not send the control information due to some abnormal conditions, and the receiver still defaults that the sender has sent the control information. At this time, a problem will occur: the receiver will Resources go up to detect control information, resulting in false detection, which will affect the normal transmission of business channels
[0003] Existing schemes are divided into two categories: one type defaults that UE (User Equipment, user equipment) sends control information, and directly detects and judges the control information. The disadvantage of this type of scheme is that it will cause false detection of control information; the other The activation detection of control information: use the Euclidean distance between the detection symbol and the control symbol or use the correlation between the detection symbol and the control symbol to judge whether the UE has sent the contro

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  • Method and equipment for controlling information activation detection
  • Method and equipment for controlling information activation detection
  • Method and equipment for controlling information activation detection

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Embodiment Construction

[0019] The inventor noticed during the invention process that among the control information, ACK / NACK information is more important. The following uses the ACK / NACK information corresponding to the PDSCH carried by the PUSCH as an example for description.

[0020] The LTE (Long Term Evolution, long-term evolution) specification points out that users can carry feedback information through PUSCH, such as ACK / NACK, RI (Rank Indicator, rank information indication), PMI (PrecodingMatrix Index, precoding matrix index), CQI (Channel Quality Indicator, channel quality indicator), etc., where ACK / NACK is very important for the transmission process of the downlink traffic channel. The base station judges whether to send new downlink traffic channel data to the user by detecting ACK / NACK, or according to HARQ (Hybrid Automatic Repeat Request, hybrid Automatic repeat request) process to resend the last downlink traffic channel data.

[0021] For whether ACK / NACK is sent, and the detectio...

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Abstract

The invention discloses a method and equipment for controlling information activation detection. The method comprises the following steps: determining a detection signal and a modulation constellation point of the detection symbol and control information; and according to the detection signal and the modulation constellation point of the detection symbol and the control information, judging whether control information is borne or not. According to the method and the equipment, the virtual detection probability of the control information can be effectively lowered.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and equipment for activation detection of control information. Background technique [0002] In a wireless communication system, in order to ensure the normal transmission of the traffic channel, feedback control information is used to inform whether the traffic channel is received correctly or the quality of the wireless channel. However, when the control information should be sent, the sender does not send the control information due to some abnormal conditions, and the receiver still defaults that the sender has sent the control information. At this time, a problem will occur: the receiver will Resources go up to detect control information, resulting in false detection, which will affect the normal transmission of the service channel. [0003] Existing schemes are divided into two categories: one type defaults that UE (User Equipment, user equipment) sends contr...

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Application Information

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IPC IPC(8): H04L1/18H04W24/08
CPCH04W28/04H04L1/1861
Inventor 黄琛唐胜志戴晓明
Owner DATANG MOBILE COMM EQUIP CO LTD
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