Terminal-specific cluster of access nodes for high frequency wireless access

An access node and Doppler frequency technology, applied in the terminal-specific cluster field, can solve the problems of slow long-distance control signaling hard handover, avoid service interruption, data flow disturbance, etc., to improve data flow, reduce service interruption, The effect of reducing signal loss

Active Publication Date: 2018-02-13
TELEFON AB LM ERICSSON (PUBL)
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Problems solved by technology

However, in mmW wireless networks, due to the reduced effectiveness of radio signal diffraction around objects at high frequencies and the reliance on narrow beamforming to provide sufficient link SNR for high data rates, the strongest signal paths can be temporarily but temporarily blocked by obstacles. Sudden blockage or loss due to device rotation, resulting in disruption of data flow and consequent TCP backoff
Conventional hard handover involving long distance control signaling across different radio access network components may be too slow to avoid service interruption in these systems operating at high frequencies

Method used

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  • Terminal-specific cluster of access nodes for high frequency wireless access
  • Terminal-specific cluster of access nodes for high frequency wireless access
  • Terminal-specific cluster of access nodes for high frequency wireless access

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Embodiment Construction

[0023] By referring to the attached Figures 1 to 10 , where like numerals are used for like and corresponding parts of the various figures, to best understand embodiments of the present disclosure and advantages thereof.

[0024] In traditional cellular networks, received signal quality typically degrades gradually before a handover is required, allowing a sufficient amount of time for both the network and the user equipment (UE) to prepare to switch the serving base station or access node (AN). In networks that rely on beam steering to establish a link between transmitter and receiver, utilizing phased arrays to create narrow beams that improve link signal-to-noise ratio (SNR) can result in a temporary and sudden loss of the strongest signal path . This effect is even more pronounced in mmW wireless networks due to the additional propagation effects of poorer diffraction around object edges, radio waves being blocked by obstacles, etc. at those frequencies. The consequence...

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Abstract

A wireless communication network includes an assistant serving access node (415) and a principal serving access node (410). The principal serving access node (410) receives one or more measurement reports. The principal serving access node (410) communicates an assistance request to communicate one or more data packets. The assistant serving access node (415) buffers the one or more data packets before receiving the assistance request and communicates the one or more data packets to the user equipment (110).

Description

technical field [0001] Embodiments of the invention relate to the field of wireless communications, and more specifically, to terminal-specific clusters of access nodes for high frequency wireless access. Background technique [0002] In order to cope with the exponential growth in mobile data traffic, new radio spectrum with much larger bandwidths for mobile communication is expected to be required in the future. Therefore, a technology enabling wireless communication on a high frequency band (for example, a millimeter wave band) in which a large amount of underutilized spectrum is available has received much attention recently. [0003] Wireless communication on high frequency bands such as millimeter wave (mmW) bands presents several challenges. Radio signals transmitted on these bands typically suffer from higher path loss between isotropic antennas than radio signals transmitted on lower frequency bands currently used in cellular communications. This problem is furthe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/02H04W40/12
CPCH04W36/023H04W40/12H04W24/10H04W36/08
Inventor D.许K.巴拉钱德兰J.阿克斯奈斯
Owner TELEFON AB LM ERICSSON (PUBL)
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