Communication device and method for selecting cell and radio access technology in wireless communication network
A technology of wireless communication equipment and wireless access technology, applied in the field of wireless communication equipment, can solve problems such as increasing the risk of signaling connection interruption, disadvantage of cells and RATs, and reducing service quality.
Active Publication Date: 2021-02-02
TELEFON AB LM ERICSSON (PUBL)
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Problems solved by technology
However, it may be disadvantageous for each cell and RAT where the SIM is camped on in idle mode
Therefore, the cells and RATs used for each SIM may not be optimal for different modes of operation and handover may be required once connection establishment takes place, which increases signaling and introduces the risk of connection interruptions, possibly reducing service quality
Method used
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[0023] figure 1 An example of a wireless communication system 100 is shown in which embodiments herein may be implemented. The wireless communication system 100 may include one or more wireless communication networks, eg, any 2G, 3G, 4G or LTE network, WiMAX, WLAN or Wi-Fi, Bluetooth, etc., for providing different RATs.
[0024] Each wireless communication network may cover a geographic area divided into cells or coverage areas. Each cell area is served by a network node operating in the respective wireless communication network. exist figure 1 , three network nodes are shown, network node 111 , network node 121 and network node 131 . The term network node as used herein may also be referred to as serving network node, access node, access point or base station. stand. Accordingly, the wireless communication system 100 may include a plurality of network nodes serving cells through RATs, which may be different, and support communication for a plurality of wireless communica...
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A wireless communication device (140) and a method therein for selecting a cell and a radio access technology RAT in a wireless communication system (100) are disclosed. The wireless communication device (140) includes a plurality of receiving modules and at least two subscriber identity modules SIM. The wireless communication device (140) determines, for a first SIM, a first cell and a first RAT to camp on using a first receiving module based on estimating performance of a plurality of RATs and cells in the wireless communication system (100). The wireless communication device (140) determines, for a second SIM, a second cell and a second RAT to camp on using a second receiving module based on estimating performance of the plurality of RATs and cells in the wireless communication system (100) . The wireless communication device (140) determines whether idle mode tasks of the first and second SIMs employing the determined cell and RAT at least partially overlap in time. When the idle mode tasks of the first and second SIMs do not overlap in time, the wireless communication device (140) uses the first receiving module or the second receiving module to process the first and second SIMs. The idle mode task for the second SIM. When the idle mode tasks of the first and second SIMs at least partially overlap in time, the wireless communication device (140) selects from the first and second SIMs to move the idle mode tasks to the SIM of the third receiving module, and enabling the third receiving module to handle the idle mode task of the selected SIM.
Description
technical field [0001] Embodiments herein relate to a wireless communication device and method thereof. In particular, it relates to cell selection and Radio Access Technology (RAT) in a wireless communication device comprising a plurality of receiving modules and at least two Subscriber Identity Modules (SIMs) operating in idle mode. Background technique [0002] Wireless communication devices may be referred to as mobile phones, user equipment (UE), wireless terminals, mobile terminals, mobile stations, cellular phones, smartphones, laptops, tablets, and phablets (i.e., smartphones and wireless-capable tablet combination). A wireless communication device is capable of communicating or operating wirelessly in a wireless communication system including a plurality of networks having access nodes or access points or a heterogeneous network (HetNet). Heterogeneous networks may include cellular communication networks including second / third generation (2G / 3G ) network, 3G Long...
Claims
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IPC IPC(8): H04W48/20H04W88/06
CPCH04W48/20H04W88/06H04W24/08H04W48/18
Inventor B·林多夫M·阿斯特罗姆J·阿克斯蒙
Owner TELEFON AB LM ERICSSON (PUBL)