Invention Grant
- Patent Title: Mobility for beam-forming systems
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Application No.: US16715861Application Date: 2019-12-16
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Publication No.: US11064409B2Publication Date: 2021-07-13
- Inventor: Andreas Cedergren , Andres Reial , Claes Tidestav
- 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: Coats & Bennett, PLLC
- Main IPC: H04W36/06
- IPC: H04W36/06 ; H04W36/30 ; H04W36/00 ; H04W16/28 ; H04B7/0408 ; H04B7/06 ; H04W36/20

Abstract:
A method for a network node of a cellular communication network is disclosed. The network node and at least some other network nodes of the cellular communication network are each adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with a wireless communication device using at least one of the plurality of beams.
The method comprises identifying one or more candidate beams, causing transmission of a reference signal on each of the candidate beams, causing reservation of an uplink resource of at least one of the candidate beams (wherein the uplink resources are for conveying a report from the wireless communication device, and wherein the report is indicative of a result of measurements of the reference signals), and causing the communication with the wireless communication device to use a target beam (wherein one of the candidate beams is selected as the target beam based on the conveyed report).
A corresponding method for a wireless communication device is also disclosed, as well as a computer program product, respective arrangements for a network node and a wireless communication device, a network node and a wireless communication device.
The method comprises identifying one or more candidate beams, causing transmission of a reference signal on each of the candidate beams, causing reservation of an uplink resource of at least one of the candidate beams (wherein the uplink resources are for conveying a report from the wireless communication device, and wherein the report is indicative of a result of measurements of the reference signals), and causing the communication with the wireless communication device to use a target beam (wherein one of the candidate beams is selected as the target beam based on the conveyed report).
A corresponding method for a wireless communication device is also disclosed, as well as a computer program product, respective arrangements for a network node and a wireless communication device, a network node and a wireless communication device.
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