Connection reestablishment method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsRui Wang, Mingzeng Dai, Qinghai Zeng
Life of this patent
Estimating the term…
Abstract
A method applied to an application scenario in which the terminal device initiates connection reestablishment, comprises: selecting a first cell; when a radio access technology (RAT) of the first cell is the same as a RAT of a source cell, sending, a first message to a reselected radio access network device, and receiving a second message from the reselected radio access network device, wherein the second message is used to indicate the terminal device to establish a connection to the reselected radio access network device.
Claims15
A method, comprising:
- selecting, by a terminal device, a first cell;
- when a radio access technology (RAT) of the first cell is the same as a RAT of a source cell, determining whether the first cell is connected to a source core network accessed in the source cell by the terminal device;
- and
- when it is determined that the first cell is connected to the source core network, performing the following:
- sending, by the terminal device, a first message to a reselected radio access network device, wherein the first message requests to reestablish a radio resource control (RRC) connection between the terminal device and an access network, and the reselected radio access network device is a radio access network device to which the first cell belongs;
- and
- receiving, by the terminal device, a second message sent by the reselected radio access network device, wherein the second message indicates to the terminal device to establish a connection to the reselected radio access network device.
An apparatus, comprising:
- at least one processor;
- and
- a non-transitory memory storing instructions for execution by the at least one processor;
- wherein, when executed, the instructions cause the apparatus to perform operations comprising:
- selecting a first cell;
- when a radio access technology (RAT) of the first cell is the same as a RAT of a source cell, determine whether the first cell is connected to a source core network accessed in the source cell by the apparatus;
- and
- when it is determined that the first cell is connected to the source core network, perform the following:
- sending a first message to a reselected radio access network device, wherein the first message requests to reestablish a radio resource control (RRC) connection between a terminal device and an access network, the reselected radio access network device is a radio access network device to which the first cell belongs, and the apparatus is applied to the terminal device;
- and
- receiving a second message sent by the reselected radio access network device, wherein the second message indicates to the terminal device to establish a connection to the reselected radio access network device.
A non-transitory memory storage medium comprising computer-executable instructions that, when executed, cause a device to:
- select a first cell;
- when a radio access technology (RAT) of the first cell is the same as a RAT of a source cell, determine whether the first cell is connected to a source core network accessed in the source cell by the device;
- and
- when it is determined that the first cell is connected to the source core network, perform the following:
- send a first message to a reselected radio access network device, wherein the first message requests to reestablish a radio resource control (RRC) connection between a terminal device and an access network, and the reselected radio access network device is a radio access network device to which the first cell belongs;
- and
- receive a second message sent by the reselected radio access network device, wherein the second message indicates to the terminal device to establish a connection to the reselected radio access network device.
Dependencies are inferred from the claim text.