Method and device for searching for network, medium and equipment
A technology for network search and cell search, which is applied in the field of network search and can solve the problems of Internet of Things terminals refusing access, aggravating access congestion, and prolonging service time.
Active Publication Date: 2021-10-26
芯翼信息科技(上海)有限公司 +1
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Problems solved by technology
However, for a cell that supports anchor access, it can support about 30 NB-IoT terminals to access at the same time, which will cause some IoT terminals to be rejected by network devices, resulting in Failed to enter
According to the protocol, these IoT terminals that are denied access will try to initiate connection establishment in the cell again after a period of time; Access failure not only prolongs the service time, but also increases the power consumption of the terminal. When a large number of IoT terminals fail to access randomly, a large number of IoT terminals still try to access again in the original cell, which also aggravates the access congestion.
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[0029] The present application presents various aspects, embodiments or features in terms of a system that can include a number of devices, components, modules and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and / or may not include all of the devices, components, modules etc. discussed in connection with the figures. In addition, combinations of these schemes can also be used.
[0030]The technical solution of the present invention can be applied to various communication systems, for example: long term evolution (long termevolution, LTE) system, worldwide interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, fifth generation (5th generation, 5G) Systems, such as new radio access technology (NR), and future communication systems, such as the sixth generation (6G) system.
[0031] Some of the terms involved in the following will be exp...
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The invention provides a method and device for searching for a network, a medium and equipment. The method can be applied to a terminal, and comprises the following steps: at a first moment, namely when the terminal does not search for a network for the first time, preferentially requesting to access a first service cell in which the terminal resides before the first moment, wherein the first service cell supporting an Internet-of-Things communication system; and when the access of the first service cell fails, carrying out cell searching on K neighbor cells corresponding to M pilot frequency neighbor cell frequency points of the first service cell, and determining a second service cell meeting a resident condition from the K neighbor cells. According to the method, the cell access success rate of the terminal can be improved, and the instantaneous access concurrency of the terminal is improved.
Description
technical field [0001] The present invention relates to the technical field of communication, and in particular to a method, device, medium and equipment for searching a network. Background technique [0002] Narrowband Internet of Things (NB-IoT) is currently the most mainstream and most promising Internet of Things (IoT) technology, and its technical advantages are mainly reflected in: wide coverage, low power consumption , large connections and low cost. NB-IoT has greatly improved the uplink capacity and can provide 50 to 100 times the number of accesses than existing cellular communication technologies. For example, at a frequency of 200KHz, according to simulation, a single cell can support up to 50K connections. [0003] At present, when a large number of IoT terminals in the same geographical area are powered on at the same time, the IoT terminals use competitive random access during initial access, and will choose to reside in the cell with the best signal quality...
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IPC IPC(8): H04W48/16H04W48/18G16Y30/00
CPCH04W48/16H04W48/18G16Y30/00
Inventor 陈志俊
Owner 芯翼信息科技(上海)有限公司