Method and equipment for controlling information activation detection

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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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 control information. The disadvantage of this type of existing scheme is that it cannot effectively distinguish the UE Whether to send control information

This type of scheme will cause false detection of ACK / NACK information, especially if the detection result at this time is judged to be ACK information, it will seriously affect the normal transmission of the traffic channel, resulting in the leakage of traffic channel data; another type of ACK Activation detection of / NACK information: Use the Euclidean distance between the detection symbol and the ACK / NACK symbol or use the correlation between the detection symbol and the ACK / NACK symbol to determine whether the UE has sent ACK / NACK information

However, currently there is no good method for this type of solution to effectively determine whether the UE has sent ACK / NACK information, and it cannot meet the detection indicators given by RAN4 (RAN WG4), which is responsible for wireless performance and protocols.

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