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System and method based on shared baseband pool and distributed radio frequency unit

A radio frequency unit, distributed technology, applied in the direction of electrical components, communication between multiple stations, wireless network protocols, etc.

Active Publication Date: 2011-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is to propose a new method and system for distributed shared baseband pool, which can solve the problem of baseband processing resource sharing in the initial stage of coverage-constrained scenarios, and solve the problem of smooth capacity expansion after capacity improvement in the later stage

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  • System and method based on shared baseband pool and distributed radio frequency unit
  • System and method based on shared baseband pool and distributed radio frequency unit
  • System and method based on shared baseband pool and distributed radio frequency unit

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Embodiment Construction

[0039] In the following description, Wimax channel and logical channel have the same meaning, and it is the smallest unit corresponding to WiMAX radio resource management. For PUSC All subchannel, BAND AMC and FUSC permutation, it is a complete carrier frequency sector resource; for PUSC Segment permutation, it is 1 / 3 subchannel of a carrier frequency sector Resource (Subchannel).

[0040] The configuration cost of the baseband part generally accounts for 30% of the entire base station configuration. If the initial configuration of this part can be reduced, it will be convenient for the operator to build a network economically and quickly. Therefore, the present invention proposes a system and method for reducing configuration costs by sharing a baseband pool.

[0041] Figure 6 It is a network architecture diagram of a system based on a shared baseband pool and distributed radio frequency units in a coverage limited scenario proposed by the present invention. The system ma...

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Abstract

The present invention provides a system and method based on a shared baseband pool and a distributed radio frequency unit. The system includes a baseband pool and a distributed radio frequency unit. Several distributed radio frequency units are connected to the baseband pool and share a logical channel of the baseband pool. baseband processing resources. The system and method of the present invention support multiple radio frequency units to share the baseband processing resources of a logical channel in the coverage limited scenario; for the interval of sharing the baseband processing resources of a logical channel, it brings forward link and Reverse link coverage gain improves edge coverage; through software configuration, upgrades from coverage-limited scenarios to capacity-limited scenarios and support for cell splitting are realized. All maintenance workload is completed in the baseband pool and does not need to be completed in the remote RRU , Easy to upgrade and expand.

Description

technical field [0001] The present invention relates to a WiMAX (Worldwide Interoperability for Microwave Access, global interoperability for microwave access) mobile communication system, in which the baseband processing resources of each carrier frequency sector on the base station side are shared by multiple RF (Radio Frequency, radio frequency) units and systems, as well as a solution to the system capacity expansion method in the network evolution process. The present invention is not only applicable to the WIMAX system, but also applicable to other mobile communication systems based on OFDMA (Orthogonal Frequency Division Multiple Access), such as LTE (Long Term Evolution, Long Term Evolution) and UMB (UltraMobile Broadband, Ultra Mobile broadband). Background technique [0002] figure 1 It is a flow diagram of the WiMAX mobile network architecture. The main components of the existing WiMAX mobile network include: WiMAX terminal CPE (Customer Premises Equipment, use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W80/00H04B7/26
Inventor 张诗壮
Owner ZTE CORP
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