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Controller redundancy in centralized radio access network

A controller and radio technology, applied in wireless communication, network topology, network planning, etc., can solve the problem of system cost increase

Pending Publication Date: 2021-05-11
COMMSCOPE TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, providing redundancy in the system adds cost to the system

Method used

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  • Controller redundancy in centralized radio access network
  • Controller redundancy in centralized radio access network
  • Controller redundancy in centralized radio access network

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0110] Example 1 includes a system for providing wireless services, the system comprising: a plurality of controllers; and a plurality of radio points; wherein each of the radio points is associated with at least one antenna and is located remotely from the controller, wherein , a plurality of radio points are communicatively coupled to a controller using a fronthaul network; wherein the controller and the plurality of radio points are configured to implement a plurality of base stations to provide wireless services to a plurality of user equipments (UEs); wherein the controller each of which is communicatively coupled to a core network of a wireless service provider; wherein the system is configured to serve a plurality of logical cells; wherein the system is configured such that each logical cell consists of a corresponding radio point group serving; wherein the system is configured to associate each group of radio points with a respective one or more controllers such that th...

example 2

[0111] Example 2 includes the system of example 1, wherein the protection scheme comprises a distributed protection scheme in which each of the controllers independently determines whether to operate in one of the active role or the backup role.

example 3

[0112] Example 3 includes the system of any of examples 1-2, wherein each logical cell has an associated virtual cell identifier, and each base station implemented by the controller has an associated base station identifier and is defined by a cell identity identified by the core network; and wherein the system is configured to associate each group of radio points with a corresponding one or more controllers such that the corresponding one or more controllers are associated with the group of radio points The corresponding logical cells associated with the set of radio points are served by associating each logical cell's virtual cell identifier with the corresponding base station identifier and cell identity identified by the core network with which One or more controllers serving the logical cell are associated.

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Abstract

One embodiment is directed to a system comprising a plurality of controllers and a plurality of radio points that provide wireless service to user equipment. The system is configured to serve a plurality of logical cells. The system is configured so that each logical cell is served by a respective group of the radio points. The system is configured to associate each group of radio points with a respective one or more controllers in order for the respective one or more controllers to serve the respective logical cell associated with that group of radio points while associated therewith. The system is configured to use a protection scheme in which the respective group of radio points that serves each logical cell does not change in the event of a fail-over that causes the one or more controllers associated with that group of radio points to change.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application Serial No. 62 / 739,714, filed October 1, 2018, which is hereby incorporated by reference in its entirety. Background technique [0003] A centralized radio access network (C-RAN) can be used to implement base station functions to provide wireless services to user equipment (UE). Typically, for each cell implemented by a C-RAN, one or more baseband units (BBUs) (also referred to herein as "baseband controllers" or simply "controllers") communicate with multiple remote units (herein Also known as "radio point" or "RP") interaction. Each controller is coupled to a fronthaul communication link or radio point on the fronthaul network. [0004] In C-RAN, each controller can present a single point of failure. In general, when an entity presents a single point of failure of the system, redundant entities may be provided to protect against failure of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W92/10H04W88/18H04W88/08
CPCH04W24/04H04W16/18H04W88/085H04W24/02H04W16/02H04W84/042H04W16/32
Inventor A·J·巴拉贝丽S·拉玛科里杉N·N·尤他尼M·S·克拉库尔N·J·马哈林格姆
Owner COMMSCOPE TECH LLC