Base station system, baseband unit and processing method and device for base band signal

A baseband signal and baseband unit technology, applied in diversity/multi-antenna systems, space transmit diversity, etc., can solve problems such as limited effective coverage and limited effective coverage of logical cells, to expand effective coverage and reduce cell reselection and the effect of how often switching occurs

Active Publication Date: 2009-04-01
DATANG MOBILE COMM EQUIP CO LTD +1
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Problems solved by technology

[0007] However, the effective coverage of a logical cell in the existing base station system composed of BBU and RRU is limited, which is also 1-2 kilometers, so there is also the problem of limited effective coverage of the logical cell

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  • Base station system, baseband unit and processing method and device for base band signal
  • Base station system, baseband unit and processing method and device for base band signal
  • Base station system, baseband unit and processing method and device for base band signal

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Embodiment Construction

[0051] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0052] The base station system provided by the present invention is composed of BBU and RRU. By combining the baseband signals transmitted by the predetermined multiple RRUs into one baseband signal, when the predetermined multiple RRUs perform signal interaction with the upper layer, since there is only one path after the combination Signals, so that from the perspective of high-level control, the high-level is only performing signal interaction with one entity, and the reserved multiple RRUs are logically regarded as a logical entity by the high-level, so the coverage area of ​​the predetermined multiple RRUs becomes a logical entity. In the coverage area, multiple RRUs are scheduled to be used as a logical cell (i.e. to realize the structu...

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Abstract

The invention discloses a base station system which comprises a baseband unit and radio frequency remote units. The baseband unit is provided with an aggregating unit, a merging unit and a processing unit. The aggregating unit is used for acquiring baseband signals from multiple radio frequency remote units; the merging unit is used for merging the baseband signals of multiple predetermined radiofrequency remote units according to the identification information of the multiple predetermined radio frequency remote units; and the processing unit is used for processing the merged baseband signals. Furthermore, the invention also discloses a baseband unit, a processing method of the baseband signals and a device thereof. The baseband signals of the multiple predetermined radio frequency remote units are merged into a signal such that the multiple predetermined radio frequency remote units are logically regarded as a logic entity by a high layer, thus realizing the use of the multiple predetermined radio frequency remote units as a logic cell, expanding the effective coverage area of the logic cell, and further reducing the frequency of the cell reselection and the cell switching.

Description

technical field [0001] The present invention relates to base station technology, in particular to a base station system, a baseband unit, and a baseband signal processing method and device. Background technique [0002] With the development of technology, many users often need to communicate on high-speed vehicles (such as high-speed trains). Due to the limited effective coverage of a cell in the current base station system (usually 1-2 kilometers), and the moving speed of vehicles Fast (existing high-speed trains run at a speed close to or exceeding 100 m / s), so in a high-speed mobile environment, user communication equipment will frequently undergo cell reselection and handover, and frequent cell reselection and handover will seriously It affects the quality of the user's communication signal, and may cause the user to drop calls and other consequences. Therefore, the effective coverage of each cell becomes an important factor limiting the communication quality of high-sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08
Inventor 蔡月民刘之浩柳斯白郑诗豪孟忻
Owner DATANG MOBILE COMM EQUIP CO LTD
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