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Method and apparatus for determining path loss

A path loss and reference signal technology, applied in the field of communication, can solve the problems of increasing system control channel load, low data transmission rate, increasing UE power consumption, etc., to shorten transmission delay, avoid retransmission operations, and improve equipment performance Effect

Active Publication Date: 2018-06-29
XIAOMI INC +1
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Problems solved by technology

[0005] According to the above-mentioned characteristics of NB-IoT, User Equipment (UE) in NB-IoT has the characteristics of low data transmission rate, large number, and poor channel quality. The UEs in the network still adopt the power control method in related technologies, which will inevitably increase the load of the base station to send configuration information due to the large number of UEs, thereby increasing the load of the system control channel, and because the channel quality of narrowband UEs is poor, it will inevitably cause high The number of retransmissions of payload configuration information wastes system resources and increases UE power consumption

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  • Method and apparatus for determining path loss
  • Method and apparatus for determining path loss
  • Method and apparatus for determining path loss

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[0057] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0058] The execution subjects involved in the present disclosure include: user equipment (User Equipment, UE) and base stations in the narrowband Internet of Things NB-IoT, where the base stations may be base stations or sub-base stations equipped with large-scale antenna arrays. The user equipment UE may be a user equipment, a user node, a tablet computer, a wearable device, a smart meter, a sm...

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Abstract

The present disclosure provides a method and apparatus for determining a path loss, wherein the method is applied to a user equipment, and the user equipment belongs to a narrowband Internet of Thingsdevice, including: determining a transmit power of a downlink narrowband reference signal NRS; determining a narrowband reference signal received power NRSRP The measured value is determined. The base station and the user are determined according to the transmit power of the downlink narrowband reference signal and the measured value of the received power of the narrowband reference signal, if the preset high-layer filter parameter sent by the base station is not received. Path loss between devices. In the method for determining the path loss provided by the present disclosure, in the processof determining the transmit power of the user equipment, the configuration information transmission burden of the base station can be reduced, unnecessary retransmission can be avoided, and power consumption of the narrowband IoT UE can be reduced.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular to a method and device for determining path loss. Background technique [0002] With the development of wireless communication technology, mobile communication networks are gradually evolving to 5G networks. Narrowband Internet of Things (NB-IoT) based on LTE (Long Term Evolution, long-term evolution) has passed the resolution of 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) and has become a medium and low-end network in the 5G network communication system. Standard for Power Wide Area Networks. NB-IoT is aimed at typical application scenarios such as low data rate, large-scale terminal number and wide coverage requirements. It has the characteristics of deep indoor coverage, low cost, low power consumption and wide connection. It is widely used in smart cities, wearable devices, smart homes and IoT applications such as smart m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/309H04B17/318H04W52/02H04W52/24
CPCH04B17/309H04B17/318H04W52/0206H04W52/0209H04W52/242H04L5/0048H04L1/0027Y02D30/70H04L5/005H04W4/70H04W84/042H04W84/18
Inventor 赵群
Owner XIAOMI INC
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