Method for optimizing physical uplink control channel detection and measurement

A physical uplink and control channel technology, which is applied in the field of optimizing the PUCCH detection and measurement of the physical uplink control channel, can solve the problems that affect the transmission performance of PDSCH, do not consider the CDM structure information, and cannot perform BLER statistics, etc., so as to improve efficiency Effect

CN102315904BActive Publication Date: 2014-02-19北京万海云科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-02-19

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Abstract

The invention discloses a method for optimizing physical uplink control channel (PUCCH) detection and measurement. According to the method, CDM structure information is taken into consideration, appropriate activation detection threshold and decoding decision threshold are arranged, scenes of 'missing detection' and 'false detection' are distinguished, thus an eNB can obtain accurate PUCCH transmission information, BLER is calculated, a condition is created for optimization of PUCCH power control, and efficiency of uplink and downlink transmission is raised.
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Description

technical field

[0001] The invention relates to the field of mobile communication, in particular to a method for optimizing the detection and measurement of a physical uplink control channel PUCCH. Background technique

[0002] LTE (Long Term Evolution, long-term evolution technology) is a third generation partnership project (3GPP) standard, and is currently a hot technology in the field of mobile communications. The PUCCH (Physical Uplink Control CHannel) of LTE mainly has the following format:

[0003] PUCCH format 1: used for the terminal to send an SR (Schedule Request, scheduling request) uplink;

[0004] PUCCH format 1a: used for the terminal to send 1-bit ACK / NAK uplink;

[0005] PUCCH format 1b: used for the terminal to send 2-bit ACK / NAK uplink;

[0006] PUCCH format 2: Transmission of periodic CSI (channel state information) information, including CQI (channel quality indication), PMI (precoding matrix indicator), RI (rank indication), etc.;

[0007] PUCCH for...

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as Figure 4 As shown, the method for optimizing PUCCH detection and measurement proposed by the present invention includes the following steps:

[0031] 401. Set an activation detection threshold and a decoding decision threshold;

[0032] 402. According to the characteristics of the code division multiplexing CDM transmission structure of the PUCCH and the soft bit information after the demodulation of each constellation symbol of the PUCCH, respectively calculate the cumulative energy of the activated soft bits and the energy of the decoded soft bits of different PUCC H formats;

[0033] 403. Compare the accumulated energy of activated soft bits with the activation detection threshold, and determine whether the PUCCH is "missed det...