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

A radio frequency unit, distributed technology, used in electrical components, communication between multiple stations, wireless network protocols, etc.

Active Publication Date: 2009-10-21
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 baseban

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

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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 invention provides a system and a method based on a shared baseband pool and distributed radio frequency units. The system comprises a baseband pool and a plurality of distributed radio frequency units, wherein the distributed radio frequency units are connected with the baseband pool and share the baseband processing resource of one logic channel of the baseband pool. Under the condition of coverage limitation, the system and the method support a plurality of radio frequency units to share the baseband processing resource of one logic channel; for intervals sharing the baseband processing resource of one logic channel, the coverage gain of a forward link and a reverse link is brought so as to improve edge coverage; and by software configuration, upgrade and subdistrict scission support from a coverage limitation scene to a capacity limitation scene are realized, all maintenance workload is finished in the baseband pool and does not need to be finished in far end RRU, and upgrade and capacity extension are convenient.

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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IPC IPC(8): H04W80/00H04B7/26
Inventor 张诗壮
Owner ZTE CORP
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