Method and terminal equipment for call establishment
A technology for terminal equipment and call establishment, which is applied in the field of communication and can solve problems such as incomplete support of LTE networks
Active Publication Date: 2021-02-26
HONOR DEVICE CO LTD
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- Application Information
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Problems solved by technology
However, in some cases, the LTE network may not fully support some services that can be handled by the traditional network, so there is usually an overlapping area in the deployment of the LTE network and the traditional network, and when the service requires, the terminal equipment can be connected between the LTE network and the traditional network convert between
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[0042] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them.
[0043] In the following detailed description, reference is made to the accompanying drawings, in part, in which are shown, by way of illustration, specific embodiments according to which embodiments are described. While these embodiments are described in sufficient detail to enable those skilled in the art to practice the described embodiments, it is to be understood that these examples are not limiting and that other embodiments may be utilized by those skilled in the art and may be used without departing from this disclosure. modifications are made without departing from the spirit and scope of the embodiments of the invention.
[0044] fi...
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An embodiment of the present invention provides a method for establishing a call applied to a terminal device, including: sending a first request message to a network device in a first communication network, where the terminal device currently resides in a cell in the first communication network, The first request message includes emergency call indication information; receive the first response message sent by the network device, where the first response message includes carrier frequency parameters in the second communication network; measure the first cell, where the first cell includes the second In at least one cell in the communication network, the carrier frequency and carrier frequency parameters of each cell in the first cell satisfy the preset relationship; judging whether the second cell supports the emergency call service, wherein the second cell is one of the first cells The cell; when the second cell supports the emergency call service, camp on the second cell; and send a second request message to a network device in the second communication network, where the second request message is used to request establishment of an emergency call.
Description
technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a method for establishing a call and a terminal device. Background technique [0002] The Long Term Evolution (English: Long Term Evolution, referred to as: LTE) system belongs to the fourth generation mobile communication system (English: 4th Generation, referred to as: 4G), and the LTE network generally supports faster data rates than the 2G and 3G networks. However, in some cases, the LTE network may not fully support some services that can be handled by the traditional network, so there is usually an overlapping area in the deployment of the LTE network and the traditional network, and when the service requires, the terminal equipment can be connected between the LTE network and the traditional network convert between. For example, in some cases, LTE networks do not support voice calls, so when an end-device receives or initiates a voic...
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IPC IPC(8): H04W4/90H04W24/04H04W76/10H04W76/50
CPCH04W4/90H04W36/0022H04W36/0066H04W36/0072H04W36/14H04W76/50H04W24/04H04W76/10H04W76/19
Inventor 袁锴段小嫣张博睢菲菲丁明
Owner HONOR DEVICE CO LTD