Method and a gateway node for reducing paging traffic in a wireless communication system

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United States of America Patent

PATENT NO 9713120
SERIAL NO

14953437

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Abstract

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A method for reducing paging traffic between a gateway (GW) and plural base stations (BSs) is provided when paging user equipments (UEs). A cache map, which records most-recently visited BSs of selected UEs, is used to limit the number of BSs in the paging of each selected UE, thereby reducing paging traffic. Furthermore, paging requests sent to the same BS node are grouped into one batch in generating a transport-layer payload, reducing the number of generated transport-layer messages. When used in a LTE system, piggybacking paging requests as provided by the SCTP reduces paging traffic and windowing/congestion control overhead at the transport layer. Transmission efficiency is thus improved. In addition, the number of paging requests sent out by the GW node per one paging interval is controlled to be not greater than a pre-determined maximum value to further limit paging traffic for avoiding occurrence of a paging storm.

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Patent Owner(s)

Patent OwnerAddress
HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED5/F PHOTONICS CENTRE 2 SCIENCE PARK EAST AVENUE HONG KONG SCIENCE PARK SHATIN NEW TERRITORIES HONG KONG KONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fan, Shijun Hong Kong, HK 10 63
Mui, Ka Ho Hong Kong, HK 10 26
Shen, Hua Hong Kong, HK 25 345
Tsang, Yau Yau Yolanda Hong Kong, HK 4 2
Wong, Yee Simon Hong Kong, HK 3 2

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