Radio equipment (RE)-based synchronization

A technology of radio equipment and radio base stations, applied in wireless communication, electrical components, time-division multiplexing systems, etc., can solve problems such as reducing base station reliability, increasing base station cost, and increasing fatal failures
CN101982008AInactive Publication Date: 2011-02-23TELEFON AB LM ERICSSON (PUBL)
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
TELEFON AB LM ERICSSON (PUBL)
Publication Date
2011-02-23
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

A distributed radio base station includes a first radio equipment controller (REC) node (12), a second radio equipment controller (REC) node (14), and a radio equipment (RE) node (16) for transceiving information over a radio interface with one or more radio terminals. The first REC node and the second REC node are physically separate from the RE node. The first REC node and / or the second REC node are / is connected to the RE node by a transmission link. Synchronization reference information is provided to one of the REC and RE nodes. The synchronization reference information in the one node is compared with timing information received from another of the REC nodes to generate a timing difference. The timing difference is used to adjust a timing unit at the another node in order to achieve timing synchronization between the RE node, the first REC node, and the second REC node.
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Description

technical field

[0001] The technical field relates to radio communications, and the technology in this application relates to synchronous distributed radio base stations. Background technique

[0002] A distributed radio base station (RBS) typically includes a radio equipment controller (REC) coupled to one or more local or remote radio equipment (REs). But there are situations where it would be desirable to include multiple RECs in a distributed radio base station. For example, it is technically feasible for an RE to support multiple wireless communication standards at the same time. Multiple low-cost RECs connected to one RE can be used to serve radio communication based on different radio wireless standards such as WCDMA and Long Term Evolution (LTE) of the Universal Mobile Telecommunications System (UMTS) wireless communication standard. Multiple RECs connected to one RE can also be used to increase the capacity and / or performance of a radio base station.

[0003] In ...

Claims

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