Method for detecting sleep desynchronization through terminal
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A terminal and sleep technology, applied in electrical components, wireless communication, etc., can solve problems such as error detection, sleep desynchronization delay, etc., to achieve the effect of reducing detection delay and reducing the risk of wrong judgment
Inactive Publication Date: 2015-01-14
BEIJING XINWEI TELECOM TECH
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It can be seen that there is a certain delay in the detection of sleep desynchronization
[0009] Second, there is a risk of false detection
However, the exception threshold is an empirical value, and there is also a risk of false detection
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Embodiment 1
[0023] Embodiment 1: When the terminal is sleeping, the base station turns off the radio frequency, causing the terminal to lose synchronization
[0024] The invention relates to the following parameters and counters:
[0025] sleepBCHError: Receive broadcast message exception counter after waking up. When waking up from sleep, if it is judged that the received broadcast message is correct, it will be cleared; if it is judged that the received broadcast message is abnormal, it will be incremented by 1.
[0026] MAX_ERRER_THD: Abnormal count threshold for receiving broadcast messages after waking up. When sleepBCHError is greater than or equal to this value, it is determined that the sleep is abnormal and needs to exit the sleep state.
[0027] CHECK_BCH_NUM: Count the number of broadcast message frames after exiting sleep and entering working state. The number of frames that continuously receive CHECK_BCH_NUM broadcast messages after entering the working state after exiting...
Embodiment 2
[0040] Embodiment 2: The terminal signal is interfered, and it is wrong to receive broadcast messages for a short time
[0041] The configuration of related parameters in this embodiment is as follows: after waking up, the abnormal count threshold MAX_ERRER_THD of received broadcast messages takes a value of 2; the statistical broadcast message frame number CHECK_BCH_NUM takes a value of 100 frames; the sleep out-of-sync judgment threshold MAX_BCH_ERROR_THD takes a value of 50 frames; the terminal sleep cycle is set to 200 frames.
[0042] The terminal of this embodiment adopts the sleep out-of-synchronization judgment mechanism provided by the present invention, and the specific steps are as follows:
[0043] 2.1, the terminal works under the base station and enters the sleep state;
[0044] 2.2, start with the terminal waking up to receive broadcast messages, and add a short period of 220 frames of strong interference;
[0045] 2.3, clear the sleepBCHError counter;
[004...
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Abstract
The invention provides a method for detecting sleep desynchronization through a terminal. The method includes the steps that the terminal monitors a broadcast channel and receives broadcast information each time after sleep awakening; if the number of the accumulated broadcast information receiving abnormity times reaches the threshold value or once a physical layer can not detect the peak value of a related value of a synchronous head, the terminal gets out of the sleep state, enters the work state and then continues to ceaselessly receive broadcast information; if the number of the broadcast information receiving abnormity times reaches the threshold value, it is judged that desynchronization happens to the terminal. On the basis of the dual detection standards on whether the peak value of the related peak of the synchronous head is detected or not and whether broadcast information is correctly received or not, the terminal can rapidly detect the sleep desynchronization and rapidly get out of the sleep state and enter the work state, and the detection delay is reduced; whether desynchronization truly happens to the terminal or not is further judged in the work state, and the risk that the terminal desynchronization is wrongly judged can be reduced.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a method for a terminal to detect sleep asynchrony. Background technique [0002] At present, most communication terminals adopt a sleep method to save power of the terminal. There are two main types of terminal sleep: deep sleep and light sleep. Light sleep means that the terminal has entered the working state, but is in an idle state, and needs to wake up periodically after entering sleep to listen to paging messages. [0003] At present, the communication terminal mainly adopts the method of detecting whether the received broadcast message is correct to detect whether the terminal is out of synchronization. The main steps are: [0004] 1. Periodically wake up, monitor the broadcast channel after waking up, and judge whether the received broadcast message is correct; [0005] 2. If the received broadcast message is abnormal, the abnormal count will be increased by 1, o...
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