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Method and system for dynamically feeding back system information sent and received by CoMP (Cooperation Multi-Point)

A technology of system information and dynamic feedback, applied in wireless communication, using return channel for error prevention/detection, electrical components, etc., can solve inter-cell interference, resource waste, UT throughput, peak rate and average UT throughput reduction etc. to achieve the effects of reducing system overhead, saving resources, improving peak rate and average UT throughput

Inactive Publication Date: 2014-04-30
ZTE CORP
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  • Abstract
  • Description
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Problems solved by technology

[0006] However, during the implementation of CoMP transmission and reception, multiple coordinated BSs use the same resources to serve a UT, which will cause waste of resources; in the uplink with inter-cell interference, when selecting When the UT performs CoMP transmission and reception, it will cause serious inter-cell interference, which will significantly reduce the UT throughput, peak rate and average UT throughput at the cell edge

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  • Method and system for dynamically feeding back system information sent and received by CoMP (Cooperation Multi-Point)

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Embodiment Construction

[0030] The technical solution of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0031] In order to save resources and reduce inter-cell interference during CoMP transmission and reception, a method for dynamic feedback of system information for CoMP transmission and reception provided by the present invention has the core idea of ​​dividing the BS in the wireless communication network into multiple The system information feedback set, and the main feedback BS is selected in each system information feedback set, and the main feedback BS feeds back the system information to the UT.

[0032] Based on the above core idea, the present invention provides a method for dynamic feedback of system information sent and received by CoMP, such as figure 1 As shown, it mainly includes the following steps:

[0033] Step 101: The BS determines the bandwidth capability and performance requirements of the UT, and sets the s...

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Abstract

The invention discloses a method for dynamically feeding back system information sent and received by a CoMP (Cooperation Multi-Point). The method comprises the following steps of: dividing base stations (BS) in a wireless communication network into a plurality of system information feedback sets; selecting one of the BS as a main feedback BS in each system information feedback set; and feeding system information back to a user terminal (UT) by the main feedback BS. The invention also discloses a system for dynamically feeding back system information sent and received by a CoMP (Cooperation Multi-Point). In the invention, through the arrangement of the system information feedback sets, the BS in the wireless communication network is divided into a plurality of sets, thereby the feedback expense of the system information is reduced; in addition, the quantity of BS requiring the system information feedback is reduced, thereby a signaling interaction process and other physical processes while system information feedback are reduced so that the system expense is effectively reduced.

Description

Technical field [0001] The present invention relates to the field of wireless network communication, in particular to a method and system for dynamic feedback of system information sent and received by CoMP. Background technique [0002] In the next-generation broadband wireless communication network, how to improve the throughput and average UT throughput of inter-cell user terminals (UT, User Terminate), especially the throughput and peak rate of the cell edge UT, is facing severe challenges. At present, in the Institute of Electrical and Electronics Engineers (IEEE, Institute of Electrical and Electronics Engineers) 802.16j, Advanced International Mobile Telecom-Advanced (IMT-Advanced, International Mobile Telecom-Advanced), Wireless World Initiative New Radio (WINNER, Wireless World Initiative New Radio) All proposed methods of CoMP (Collaborative Multiple Point) sending and receiving to solve the above problems. [0003] CoMP transmission and reception refers to joint transmi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04L1/16
Inventor 魏巍
Owner ZTE CORP