Co-frequency cell detection method and device
A co-frequency cell and detection method technology, applied in the field of communication, can solve problems such as increased power consumption and scheduling failure, and achieve the effects of eliminating interference, reducing measurement power consumption, and improving mobile performance
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Embodiment 1
[0021] figure 1 It is a flow chart of a method for detecting cells of the same frequency provided by Embodiment 1 of the present invention, and this embodiment is applicable to the detection of cells of the same frequency. The method can be executed by the same-frequency cell detection device provided in the embodiment of the present invention, and the device can be realized by software and / or hardware. The device can be made into an application program and installed in the terminal. Such as figure 1 shown, including:
[0022] S110. Determine a candidate cell through signal detection.
[0023] Wherein, the number of candidate cells is at least one.
[0024] Specifically, a cell whose signal strength exceeds a preset strength may be used as a candidate cell. The candidate cells include not only target cells for co-frequency detection, but also interfering cells. According to the 3GPP-LTE_36.211 protocol, the maximum number of target cells for co-frequency detection can be...
Embodiment 2
[0054] Figure 2AIt is a flow chart of a method for detecting same-frequency cells provided by Embodiment 2 of the present invention. This embodiment takes SSS signal detection as an example to describe the implementation of the present invention in detail. Since the downlink synchronization signal of LTE is composed of primary synchronization signal PSS and SSS, among them, the frame structure of PSS and SSS of TDD-LTE is as follows Figure 2B shown. Among them, SSS is generated in different ways on odd subcarriers and even subcarriers. On odd subcarriers of TTI0 / 5, the SSS sequence is given by and m 0 decision; on even subcarriers of TTI0 / 5, the SSS sequence is determined by m 0 and m 1 jointly decided, where m 0 and m 1 According to the 3GPP-LTE_36.211 agreement Look up the value obtained from the table. The subcarrier data mapping rules of SSS are as follows Figure 2C shown. According to the introduction of chapter 6.11.2 of the 3GPP-LTE_36.211 protocol, whe...
Embodiment 3
[0077] image 3 Shown is a schematic structural diagram of an intra-frequency cell detection device provided in Embodiment 5 of the present invention. This embodiment is applicable to the situation of same-frequency cell detection. The device can be realized by means of software and / or hardware. The device can be made into an application program and installed in the terminal. Such as image 3 As shown, it specifically includes: a candidate cell determination module 31 , a false cell determination module 32 and a target cell determination module 33 .
[0078] The candidate cell determination module 31 is used to determine the candidate cell by signal detection;
[0079] The false cell determination module 32 is used to screen out false cells from the candidate cells according to the parameters corresponding to each candidate cell;
[0080] The target cell determining module 33 is configured to use the remaining candidate cells among the candidate cells as target cells.
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