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Devices for communication in a wireless communication network using beamforming

A technology of wireless communication network and communication equipment, which is applied in wireless communication, vehicle wireless communication service, radio transmission system, etc., and can solve the problems of inefficient resources, expensive non-competitive random access channel mechanism, failure, etc.

Active Publication Date: 2021-04-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two standard schemes have different potential problems: firstly, the physical uplink control channel (PUCCH) mechanism requires the availability of uplink beam pairs, which is not always satisfied because in many cases the downlink and Uplink beams may be the same
So in many cases when the downlink beam fails, the uplink beam also fails
Second, non-contention-free Random Access Channel (RACH) mechanism is very expensive in terms of resources, since non-contention (reserve space) needs to be maintained for each scheduled UE in the uplink resource, which is only available when the beam fails will be used
So this is not resource efficient

Method used

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  • Devices for communication in a wireless communication network using beamforming
  • Devices for communication in a wireless communication network using beamforming
  • Devices for communication in a wireless communication network using beamforming

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Embodiment Construction

[0054] In the following description, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustrations certain aspects which may illustrate the invention. It is to be understood that other aspects may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be taken as limiting, since the scope of the invention is defined by the appended claims.

[0055] For example, it will be appreciated that a disclosure relating to a described method may also be true for a corresponding apparatus or system for performing the method, and vice versa. For example, if specific method steps are described, a corresponding device may include means for performing the described method steps, even if the means are not explicitly described or shown in the figures.

[0056] Furthermore, in the following detailed description and in ...

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Abstract

The invention relates to a first communication device configured to communicate with a second communication device and a third communication device in a wireless communication network using beamforming, wherein the first communication device is configured to determine a new beam from a plurality of available beams of the second communication device in response to a beam failure event with the second communication device transmit a beam failure recovery request, BFRQ, message to the third communication device wherein the BFRQ message contains information about the new beam determined by the first communication device and receive from the second communication device a BFRQ response message.

Description

technical field [0001] Generally, the present invention relates to communication networks. More specifically, the present invention relates to a communication device for communicating using beamforming in a wireless communication network. Background technique [0002] Beamforming is widely used in the 5G New Radio (5G NR) standard. Beam failures in 5G NR are usually on all serving beams from the serving gNB or Transmit and Receive Point (TRP) to the corresponding User Equipment (UE) ) selection and use. Not all of them are used at the same time) occurs when all failures occur, for example, the packet error rate (Packet Error Rate, PER) of all these allocated service beams is too high within a specific period of time. This beam failure can occur because the UE is sending movement, or there is an object blocking the current beamforming link between the TRP and the UE, causing the beam direction of these serving beams to be no longer optimal. [0003] Beam failure may only o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08
CPCH04W24/04H04W4/40H04B7/063H04B7/0695H04B7/088H04W76/19H04W88/04H04L41/0668H04L41/0677H04W24/08H04W72/04H04B7/0617
Inventor 理查德·斯特林-加拉赫栗忠峰罗健
Owner HUAWEI TECH CO LTD