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Method and apparatus of latency measurement for lte-wlan aggregation

A technology for user equipment and base stations, applied in network traffic/resource management, connection management, network topology, etc., can solve problems such as inability to guarantee QoS requirements, inability to accurately represent transmission time, and difficulty in estimating total packet delay

Inactive Publication Date: 2017-05-24
HFI INNOVATION INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, if the service allocation ratio is determined only based on channel conditions and AP loads, it is still difficult for eNB to estimate the total packet delay when PDUs are transmitted to WLAN links, so that QoS requirements cannot be guaranteed
This is because the AP load only reflects the queuing time of the AP, but cannot accurately represent the current transmission time

Method used

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  • Method and apparatus of latency measurement for lte-wlan aggregation
  • Method and apparatus of latency measurement for lte-wlan aggregation
  • Method and apparatus of latency measurement for lte-wlan aggregation

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Embodiment Construction

[0025] The following descriptions are preferred embodiments for implementing the present invention, and some embodiments are illustrated by the accompanying drawings.

[0026] figure 1is a system diagram of a wireless network 100 with LWA according to an embodiment of the present invention. The wireless network 100 includes a base station eNB 101 providing LTE cellular wireless access through E-URTRAN, an access point AP 102 providing Wi-Fi wireless access through WLAN, and a user equipment UE 103 . LWA is a tight integration at the radio level that considers real-time channel and load-aware radio resource management on LTE and WLAN to significantly increase capacity and QoE. When LWA is enabled, the S1-U interface is terminated at the eNB 101, and all IP packets are directed to the eNB 101, and are operated on the PDCP layer as LTE PDUs. Subsequently, the eNB 101 can schedule whether the LTE PDU should go to the LWA-LTE link 110 or the LWA-Wi-Fi link 120 . LWA borrows the...

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Abstract

LWA (LTE-WLAN Aggregation) is a tight integration at radio level which allows for real-time channel and load aware radio resource management across WLAN and LTE to provide significant capacity and quality of experience (QoE) improvements. When enabling LWA, packets are routed to a base station (eNB) for performing PDCP functionalities as an LTE PDU. Afterwards, the eNB can schedule the PDU either translated over LTE link or WLAN link. The eNB can acquire packet delay information regarding the WLAN link or obtain PDCP layer performance feedback from the UE. As a result, the eNB can adjust PDCP parameter setting and LWA scheduling accordingly.

Description

[0001] cross reference [0002] This application claims priority under 35 U.S.C. §119 to U.S. Provisional Application No. 62 / 162,265, filed May 15, 2015, entitled "Method and Apparatus of Latency Measurement for LTE-WLAN Aggregation" , and this application is incorporated by reference. technical field [0003] The present invention relates to wireless communications, and in particular to latency measurement and reporting for Long Term Evolution (LTE)-Wireless Local Area Network (WLAN) aggregation. Background technique [0004] Mobile data applications have grown exponentially in recent years. Due to its simplified network architecture, the LTE system can provide high peak data rates, low latency, increased system capacity, and lower operating costs. In the LTE system, the Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN) includes multiple base stations, such as evolved Node-B (evolved Node-B, eNB), which commu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/12H04W72/54
CPCH04W28/12H04W84/042H04W84/12H04W76/15H04W28/0236H04W88/06H04W76/27
Inventor 周建铭徐家俊帕范·山萨纳·克里斯那·努杰哈利
Owner HFI INNOVATION INC