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Apparatus and mechanism to transmit beam failure recovery request in nr system with multiple beam operation

A fault recovery and beam technology, applied in transmission systems, radio transmission systems, network planning, etc., can solve problems such as directional transmission delay detection

Pending Publication Date: 2019-09-20
MEDIATEK SINGAPORE PTE LTD SINGAPORE
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Problems solved by technology

Because both the BS and the mobile station (mobilestation) need to scan (scan) in an angle range before the base station (Base Station, BS) can be detected (detect), so the cell search (cell search) is used for initial High reliance on directional transmissions (such as for synchronization and broadcast signals) may delay BS detection during connection setup and handover

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  • Apparatus and mechanism to transmit beam failure recovery request in nr system with multiple beam operation
  • Apparatus and mechanism to transmit beam failure recovery request in nr system with multiple beam operation
  • Apparatus and mechanism to transmit beam failure recovery request in nr system with multiple beam operation

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Embodiment Construction

[0030]Reference will now be made in detail to some embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0031] In NR networks with multi-beam operation, beam management is an important process to support beam-level mobility, where beam management can be implemented as a set of PHY / MAC processes to acquire and maintain Transmission Reception Point (Transmission Reception Point, TRP) and / or UE beam set, where the TRP and / or UE beam set can be used for DL ​​and UL transmission / reception. During the normal beam measurement process, the network and UE can connect to each other without interruption. HF signals are highly susceptible to shadowing due to obstacles such as human bodies and outdoor materials. Thus, signal blockage due to shadowing can be a large bottleneck in providing uniform capacity. When the beam used for communication is blocked, some mechanism is needed to overcome the sudden beam quality degradation and guarantee the d...

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Abstract

Apparatus and methods are provided for beam failure recovery request (BFRR) transmission. In one novel aspect, one or more beam failure (BF) instances are detected in a communication network. The communication network has multiple cells each configured with multiple beams. A BFRR is repeated transmitted with a timer or counter controlled transmission on one or more beams of one or more selected type of physical channels until a BFRR response is received from the communication network or a control stop is reached. The selected type of physical channel is selected based on a channel priority rule. The UE indicates a BFRR failure to a radio resource control (RRC) layer when the control stop is reached without receiving the BFRR response. In one embodiment, upon determining a control stop is reached, the UE selects a new physical channel based on the channel priority rule and re-transmits the BFRR on the newly selected physical channel.

Description

[0001] cross reference [0002] This application claims the priority of the international application PCT / CN2017 / 096815 with the title of "APPARATUS AND MECHANISM TOTRANSMIT BEAM FAILURE RECOVERY REQUEST IN NR SYSTEM WITH MULTIPLE BEAMOPERATION" submitted on August 10, 2017. Incorporated herein by reference. technical field [0003] Embodiments of the invention relate generally to wireless communications, and specifically to transmit beam failure recovery. Background technique [0004] The fifth generation (Fifth Generation, 5G) radio access technology (Radio Access Technology, RAT) will be a key part of the modern access network, which can solve the high traffic (traffic) growth and the ever-increasing demand for high-bandwidth connections, and can also Support massive connected devices and meet the real-time, high-reliability communication requirements of mission-critical applications. Standalone (StandAlone, SA) New Radio (NewRadio, NR) deployments and Non-StandAlone (...

Claims

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Application Information

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IPC IPC(8): H04W72/08
CPCH04B7/0617H04B7/0695H04W74/0833H04W76/27H04W16/28H04W74/02H04W72/56
Inventor 张园园
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE
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