Back to results
US 2020/0092760 A1Published application
Switch supporting method
AssigneeSamsung Electronics Co., Ltd.
InventorsLixiang XU, Hong WANG, Xiaowan KE
Life of this patent
Estimating the term…
Abstract
The present application discloses a switch supporting method comprising: an eNB sends a path switching request message to an MME to notify the MME of information on a bearer remaining unchanged; the MME reserves the bearer remaining unchanged and does not trigger a deactivation process for the bearer remaining unchanged; the MME sends a modify bearer request message to an SGW. With the present application, data loss can be avoided and service continuity is ensured when a UE moves in a small cell scenario.
Claims1
A method of a base station, the method comprising:
- transmitting, to a mobility management entity (MME), a first request message requesting modification for one or more bearers, the first request message including first information on at least one bearer to be modified and second information on at least one bearer which remains unmodified;
- and
- receiving, from the MME, a confirmation message in response to the first request message,
- wherein at least one bearer which is neither the at least one bearer to be modified nor the at least one bearer which remains unmodified is to be released,
- wherein a second request message is transmitted from the MME to a serving gateway based on the first request message, the second request message requesting modification of one or more bearers,
- wherein the second request message includes information on a bearer context to be deleted, and the information on the bearer context to be deleted does not include information on the at least one bearer which remains unmodified, and
- wherein the first request message and the confirmation message include an MME user equipment (UE) S1 application protocol (S1AP) identifier (ID) of a terminal which is allocated to the terminal before the first request message is transmitted.
4 more elements
Dependencies are inferred from the claim text.