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A mapping method and base station for virtual antenna ports

A virtual antenna and port technology, applied in the field of communication, can solve the problem of low overall throughput performance of the system

Active Publication Date: 2017-08-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a virtual antenna port mapping method and base station, which can be used to solve the problem of low overall system throughput performance due to fixed VAN mapping matrix and different RRU antenna port phases and wireless environments. question

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  • A mapping method and base station for virtual antenna ports
  • A mapping method and base station for virtual antenna ports
  • A mapping method and base station for virtual antenna ports

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] A distributed base station architecture is used in a 3G network. The distributed base station includes a remote radio unit RRU and a baseband processing unit (English: Baseband Unit, abbreviated: BBU), and the RRU and the BBU are connected by optical fibers. BBUs are centrally placed in the equipment room, RRUs can be installed outdoors, and one BBU can support multiple RRUs, which can well solve the indoor coverage of large venues...

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Abstract

The invention provides a virtual antenna port mapping method and a base station, and relates to the field of communication. The virtual antenna port mapping method and the base station can be used for solving the problem that in the prior art, the system is low in overall handling capacity performance because of a fixed VAM matrix, different RRU antenna port phase positions and wireless environment. The method includes the steps that a baseband processing unit acquires information of a channel between a remote radio unit and user equipment, the channel comprises at least one of an uplink channel and a downlink channel, and a first VAM matrix is determined according to the information of the channel and used for mapping between virtual antenna ports of the BBU and the physical antenna ports of the RRU, the first VAM matrix is sent to the RRU, and after the RRU receives the first VAM matrix from the BBU, the virtual antenna ports are mapped to the physical antenna ports through the first VAM matrix. The virtual antenna port mapping method and the base station are used for VAM.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a method for mapping virtual antenna ports and a base station. Background technique [0002] In the long-term evolution (English: Long-term evolution, abbreviation: LTE) system, the downlink virtual antenna mapping (English: Virtual Antenna Mapping, abbreviation: VAM) is a remote radio unit (English: Remote Radio Unit, abbreviation: RRU) pair Downlink data except the physical downlink shared channel (English: Physical Downlink Shared Channel, abbreviation: PDSCH) in transmission mode TM7 / 8 (English: Transmission Mode7 / 8) is weighted. After the weighted data is framed, the subsequent transmission channel is used Correction. Since the antennas in the protocol are virtual antenna ports, more physical antennas than virtual antenna ports can also be used in actual system applications, so it is necessary to map virtual antenna port data to physical antenna ports through VAM. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04
Inventor 钱丰勇方冬梅黄晖
Owner HUAWEI TECH CO LTD