Radio Link Failure (RLF) information recording method and device
A recording method and technology of terminal equipment, applied in the field of communication, can solve problems such as poor threshold setting of service cells, failure to receive Broadcast Channel broadcast channels, poor setting threshold, etc., and achieve the effect of convenient configuration or optimization of mobility network quality
Active Publication Date: 2014-04-02
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0010] 2. Serving Cell becomes worse than threshold (the service cell becomes worse than the set threshold)
[0011] 3. Transmit power headroom becomes less than threshold (PHR becomes worse than the set threshold)
[0012] 4. Random access failure (random access failure)
[0014] 6. Broadcast Channel failure (broadcast channel failure to receive)
[0019] 1. Downlink out of step for a long time
[0020] 2. RACH (Random Access Channel) failed
When the terminal device records the same RSRP before and after RLF at this time, the network will judge that the handover is too late, but this is caused by RACH problems or uplink coverage problems, so this is confusing information for the network
[0029] Therefore, it can be seen that when the uplink coverage vulnerability is reported, if the terminal device does not distinguish between the situation and reports, it will cause network misjudgment.
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[0053]In future mobile communication systems such as LTE systems, it is hoped that by introducing the SON mechanism, manual participation in network planning and operation and maintenance can be reduced, and network construction and operation costs can be reduced, that is, parameters can be automatically optimized by the network according to statistics.
[0054] In the current mobile system network optimization, it is usually used to check the coverage quality of the network and whether the system performance meets the expected requirements of the design, that is, professional network optimization personnel drive the measurement vehicle to walk randomly, and the measurement terminal records the walking process. Events and measurements are provided to operators for network optimization decisions. This type of drive test is done manually, which requires a lot of manpower and time, and brings a great burden on the network construction and maintenance costs of operators. On the ot...
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The embodiment of the invention discloses an RLF information recording method and an RLF information recording method device, which provide a solving scheme for the RLF examples needed to be considered in SON and MDT scenes. By adopting the method, a terminal device can determine whether to record the RLF information or not according to a corresponding RLF screening rule, so as to filter interference information affecting the judgment of a network optimization strategy; and a network side device can precisely determine network problems according to the RLF information recorded by the terminal device, thus convenient for the configuration of a network coverage strategy or the optimization of the quality of a mobile network.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a method and equipment for recording RLF information. Background technique [0002] Currently, LTE MDT (Minimization Drive Test) includes the following use cases: [0003] 1. Coverage optimization (coverage optimization) [0004] 2. Mobility optimization [0005] 3. Capacity optimization (capacity optimization) [0006] 4. Parameterization for common channels (common channel parameter optimization) [0007] 5. QoS verification (service quality verification) [0008] In the R9-based MDT research report TR 36.805 V9.0.0 completed by 3GPP in 2009, the following seven terminal equipment measurements were determined: [0009] 1. Periodical downlink pilot measurements (periodic downlink pilot measurements) [0010] 2. Serving Cell becomes worse than threshold (the service cell becomes worse than the set threshold) [0011] 3. Transmit power headroom becomes less than thre...
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IPC IPC(8): H04W24/04H04W24/10
Inventor 杨晓东王彦赵瑾波
Owner DATANG MOBILE COMM EQUIP CO LTD