Enhanced sounding reference signaling for uplink beam tracking
US-2019081751-A1 · Mar 14, 2019 · US
Method and apparatus for beam management in a wireless communication system
US2018167883A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018167883-A1 |
| Application number | US-201715822017-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 24, 2017 |
| Priority date | Dec 13, 2016 |
| Publication date | Jun 14, 2018 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method and apparatus are disclosed from the perspective of a UE. In one embodiment, the method includes receiving a configuration, wherein the configuration indicates whether the UE performs a beam management during a specific period of time. The method also includes determining whether to perform the beam management during the specific period of time based on at least the configuration.
First claim
Opening claim text (preview).
1 . A method of a UE (User Equipment), comprising: receiving a configuration, wherein the configuration indicates whether the UE performs a beam management during a specific period of time; and determining whether to perform the beam management during the specific period of time based on at least the configuration. 2 . The method of claim 1 , wherein the specific period of time is DRX (Discontinuous Reception) inactive time. 3 . The method of claim 1 , wherein the beam management includes a beam feedback procedure. 4 . A method of a UE (User Equipment), comprising: maintaining at least one serving beam in a serving cell; determining whether the at least one serving beam is valid when uplink data is available for transmission; and selecting a specific beam of the serving cell and transmitting a request for uplink resource via the specific beam if the at least one serving beam is not valid. 5 . The method of claim 4 , wherein the UE selects the specific beam based on beam reference signal measurement. 6 . The method of claim 4 , wherein the specific beam is a best beam measured by the UE. 7 . The method of claim 4 , wherein the request is a scheduling request. 8 . The method of claim 4 , wherein the request is a random access preamble. 9 . The method of claim 4 , wherein the UE performs measurement on the least one serving beam to determine whether the at least one serving beam is valid or not. 10 . The method of claim 4 , wherein the at least one serving beam is not valid during DRX (Discontinuous Reception) inactive time if a beam feedback procedure is not continued during the DRX inactive time. 11 . The method of claim 4 , wherein a timer is used to determine whether the at least one serving beam is valid or not. 12 . The method of claim 4 , wherein the UE transmits the request via the at least one serving beam if the at least one serving beam is valid. 13 . A method of a UE (User Equipment), comprising: maintaining at least one serving beam in a serving cell; determining whether the at least one serving beam is valid when the UE needs to monitor a downlink control channel; and selecting a specific beam of the serving cell and monitoring the downlink control channel to receive a request for transmitting a random access preamble via the specific beam if the at least one serving beam is not valid. 14 . The method of claim 13 , wherein uplink of the UE is not synchronized. 15 . The method of claim 13 , wherein the UE selects the specific beam based on beam reference signal measurement. 16 . The method of claim 13 , wherein the specific beam is a best beam measured by the UE. 17 . The method of claim 13 , wherein the UE performs measurement on the least one serving beam to determine whether the at least one serving beam is valid or not. 18 . The method of claim 13 , wherein the at least one serving beam is not valid if a beam feedback procedure is not continued when uplink of the UE is not synchronized. 19 . The method of claim 13 , wherein the UE transmits the random access preamble in response to the request. 20 . The method of claim 13 , wherein the UE monitors the downlink control channel during DRX (Discontinuous Reception) active time.
Assignees
Inventors
Classifications
Transitions between radio resource control [RRC] states · CPC title
- H04W52/0216Primary
using a pre-established activity schedule, e.g. traffic indication frame · CPC title
using beam steering · CPC title
using two or more beams, i.e. beam diversity · CPC title
the resource being in the space domain, e.g. beams · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2018167883A1 cover?
- A method and apparatus are disclosed from the perspective of a UE. In one embodiment, the method includes receiving a configuration, wherein the configuration indicates whether the UE performs a beam management during a specific period of time. The method also includes determining whether to perform the beam management during the specific period of time based on at least the configuration.
- Who is the assignee on this patent?
- Asustek Comp Inc
- What technology area does this patent fall under?
- Primary CPC classification H04W52/0216. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jun 14 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).