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Neighboring mobility reference signal set search in beambased nr mobility

A reference signal and mobility technology, applied in signaling distribution, wireless communication, transmission path sub-channel distribution, etc., can solve the problem of large complete search space and time-consuming, and achieve the effect of reducing complexity

Active Publication Date: 2019-08-23
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the second option, it may take time for the UE to find neighboring MRSs fast enough, since the set of target MRSs may not be known explicitly on the UE side, or the complete search space may be too large

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  • Neighboring mobility reference signal set search in beambased nr mobility
  • Neighboring mobility reference signal set search in beambased nr mobility
  • Neighboring mobility reference signal set search in beambased nr mobility

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Embodiment Construction

[0039] As explained above, there are many technical problems associated with Mobility Reference Signals (MRS) for beam-based mobility. For example, when the network proactively configures the UE with a new set of Mobility Reference Signals (MRS) using L3 signaling, the MRS search, L3 processing and signaling may result in dropped connections if the UE is at the coverage edge. If the UE is used to detect new MRSs and report them to the network using L3 signaling, the time taken by the UEs to find neighboring MRSs may be too long, or the associated energy consumption may be too high.

[0040] To overcome these and other problems, certain embodiments of the present disclosure provide novel mobility reference signal and search procedures that minimize the planning, delay, and signaling costs of beam switching. Certain embodiments disclose two or more signal components which allow for more efficient beam switching. Utilizing multiple signal components to coordinate beam switching ...

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Abstract

According to certain embodiments, a method in a wireless device (110) for performing mobility measurements includes detecting (402) a first mobility measurement signal component sent from a network node (100), the first mobility measurement signal comprising a group ID information. The method may further include determining (404) one or more of a beam ID range and a resource allocation range for asecond mobility measurement signal component using the group ID information. And, the method may further include detecting (406) the second mobility measurement signal component using the one or moreof the beam ID range and the resource allocation range.

Description

technical field [0001] The present disclosure relates generally to wireless communications and, more particularly, to mobility reference signals for beam-based mobility. Background technique [0002] Compared to current mobility solutions in LTE, for Next Generation (NG) architectures (see e.g. TR 23.799, Study on Architecture for Next Generation), and more specifically, for NG access technologies (see e.g. TR 38.913, Study on Scenarios and Requirements for Next Generation Access Technologies) will influence the design of active mode mobility solutions for New RAT (NR) (see e.g. RP-160671, New SID Proposal: Study on New Radio Access Technology, DoCoMo). Some of these requirements include the need to support mechanisms for network energy efficiency, provide "future proofing", and support a very wide range of frequencies (up to 100 GHz). [0003] Neighbor cell / beam search and detection process [0004] In LTE, a user equipment (UE) detects a cell based on its primary synchro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W48/16
CPCH04W48/16H04W36/00835H04W36/0085H04W36/0058H04L5/0053
Inventor O.N.C.伊尔马斯R.安德烈斯
Owner TELEFON AB LM ERICSSON (PUBL)