Invention Grant
- Patent Title: Wireless communication system, a wireless device, network nodes, and methods therein, for changing master node for the wireless device
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Application No.: US15774742Application Date: 2015-11-18
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Publication No.: US10542473B2Publication Date: 2020-01-21
- Inventor: Rui Fan , Qingyu Miao , Stefan Wager , Osman Nuri Can Yilmaz
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Sage Patent Group
- International Application: PCT/SE2015/051239 WO 20151118
- International Announcement: WO2017/086845 WO 20170526
- Main IPC: H04W36/18
- IPC: H04W36/18 ; H04W36/00 ; H04W36/08 ; H04W36/38 ; H04W76/15 ; H04W76/22 ; H04W36/30 ; H04W76/20 ; H04L1/16 ; H04W84/20
Abstract:
A method performed in a wireless communications system for changing master node for a wireless device (WD). A first node is the master node for the WD, and second and third nodes are secondary nodes for the WD. The third node receives information that the third node is to be the master node and information to reuse a first set of existing protocol entities and context for communication with the WD. The WD receives information about a change of master node from the first node to the third node and information to reuse a second set of existing protocol entities and context for communication with the third node. The second node receives information that the third node is the master node and information to reuse a third set of existing protocol entities and context for communication with the WD. Thereby the master node for the WD is changed.
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