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Methods and apparatus for multiple connectivity in heterogeneous network

A heterogeneous wireless network, wireless network technology, applied in network planning, connection management, network topology and other directions, can solve problems such as path loss cell association change

Active Publication Date: 2017-10-13
HFI INNOVATION INC
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The small coverage of MMW cells causes relative path loss and rapid change of cell association

Method used

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Examples

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Embodiment Construction

[0026] Referring to the embodiments of the present invention in detail below, examples of the present invention will be described along with the accompanying drawings.

[0027] figure 1 It is a schematic diagram of a heterogeneous network 100 according to an embodiment of the present invention. The wireless communication system 100 comprises one or more fixed infrastructure elements, such as base stations 101, 102 and 105, forming a network distributed in a geographical area. A basic unit may be referred to as an access point, an access terminal, a base station, a Node B, and an evolved Node B (eNode-B, eNB), or other terms used in the art. One or more base stations 101, 102 and 105 serve a plurality of mobile stations 103, 104, 106 and 107 in a service area, such as a cell or a cell sector. In particular, base station 101 serves as a macro cell base station. The base stations 102 and 105 operate as small cells with different radio access technologies. In one example, two...

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PUM

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Abstract

Methods are provided to perform multiple-connectivity operation in the heterogeneous network. In one novel aspect, multiple-connectivity is configured with one microwave macro cell and multiple small cells. UE establishes control plane connectivity with the microwave macro cell, where the S1-MME interface is terminated. Multiple small-cell base stations provide traffic data together to the UE and are connected with Xn interfaces. One small-cell base station in the set of the configured small base stations is an UP anchor small-cell base station, where S1-U interface is terminated. Other small base stations are UP assistance small base station. In one embodiment, the set of small base stations and the UP anchor small base stations can be changed based on the measurement report / results of the different cells as well as the cell loading status. The anchor base station can be changed either by the UE or through network configuration.

Description

[0001] Cross References to Related Applications [0002] This application is based on 35U.S.C.§111(a) and 35U.S.C.§120and§365(c) requires an international application, the application number is PCT / CN2015 / 076877 titled "Multiple Connectivity inMillimeter Wave System ”, the priority of the international application filed on April 17, 2015, the subject matter of the above application is incorporated by reference again. technical field [0003] The disclosed embodiments relate generally to wireless communications, and more particularly to methods and apparatus for multiple connectivity in heterogeneous networks. Background technique [0004] The bandwidth shortage increasingly experienced by mobile carriers has inspired the development of unutilized millimeter wave (MMW) spectrum between 6G and 300GHz for next-generation broadband cellular communication networks. The available frequencies in the MMW band are 200 times larger than conventional cellular systems. MMW wireless n...

Claims

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Application Information

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IPC IPC(8): H04W16/32
CPCH04W92/20H04W76/15H04W16/32H04W84/045
Inventor 张园园郑伃璇爱民·贾斯汀·桑
Owner HFI INNOVATION INC
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