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Macro eNB and small cell eNB collaboration method and device thereof

A technology of small base station and cooperative work, applied in the wireless field, it can solve the problem of no solution, and achieve the effect of realizing reasonable cooperative work and avoiding the long connection establishment process.

Inactive Publication Date: 2014-08-27
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Since small cell is the latest proposed technology, there is no effective solution in the prior art

Method used

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  • Macro eNB and small cell eNB collaboration method and device thereof
  • Macro eNB and small cell eNB collaboration method and device thereof
  • Macro eNB and small cell eNB collaboration method and device thereof

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Embodiment Construction

[0041] Aiming at the problems existing in the prior art, the present invention proposes a scheme for cooperating between macro base stations and small base stations, in which control plane signaling can be sent on the air interface of the macro base station, and user plane data can be sent on the small cell.

[0042] In order to realize the solution described in the present invention, there needs to be a user plane interface (S1-U) between the small base station and the signaling gateway (SGW, Signal Gateway), that is, the user plane data of the small cell can directly pass through the small base station and the SGW The S1-U interface between the S1-U interface does not need the proxy of the macro base station. figure 1 It is a schematic diagram of the transmission mode of signaling flow and data flow in the scheme of the present invention.

[0043] In order to make the technical solution of the present invention more clear and understandable, the solution of the present inven...

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Abstract

The invention discloses a macro eNB and small cell eNB collaboration method and a device thereof. When a terminal which resides in a macrocell and is in an idle state satisfies triggering conditions, a union connection establishment request is initiated to a macro eNB corresponding to the macrocell; when the union connection establishment is finished, the macro eNB informs a mobile management entity of a small cell eNB which is selected for the terminal and is corresponding to a mini-cell ; the mobile management entity deletes a user plane bearing between the macro eNB and a signaling gateway, establishes a user plane bearing between the small cell eNB and the signaling gateway and controls the macro eNB and the small cell eNB to respectively complete initial context establishment; the terminal completes connection reassortment according to wireless configuration information obtained from the macro eNB; and transceiving of control plane signaling between the terminal and the mobile management entity is carried out through the macro eNB, and transceiving of user plane data between the terminal and the signaling gateway is carried out through random access in the mini-cell. With the application of the above scheme, reasonable collaboration between the macro eNB and the small cell eNB can be realized.

Description

technical field [0001] The present invention relates to wireless technology, in particular to a method and device for cooperating between a macro base station and a small base station. Background technique [0002] In order to share the load of the macro base station, it is proposed in the prior art that a small base station (small cell eNB) that can provide high-speed access can be deployed in areas such as the hotspot coverage of the macro base station (Macro eNB), and the cell corresponding to the small base station is called a small cell. A small cell, a cell corresponding to a macro base station is called a macro cell (Macro cell). [0003] The number of small cells under each macro base station may be very large, such as dozens. Therefore, how to make the macro base station and the small base station work together reasonably to achieve effective data offloading will be an urgent problem to be solved. [0004] Since the small cell is a newly proposed technology, there ...

Claims

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Application Information

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IPC IPC(8): H04W28/10H04W76/02
Inventor 江小威
Owner CHINA MOBILE COMM GRP CO LTD
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