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Multi-point coordinated processing method and system

A technology of multi-point coordination and processing method, which is applied in the field of mobile communication, and can solve serious problems, cell edge cell interference, etc., and achieve the effect of enhancing coverage and improving system throughput

Inactive Publication Date: 2012-05-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this configuration, there is almost no interference problem inside the cell because the carriers are completely orthogonal, but the interference problem between cells at the edge of the cell becomes quite serious.

Method used

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  • Multi-point coordinated processing method and system
  • Multi-point coordinated processing method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] When the CoMP cooperating set is transparent to the UE, the processing flow of the UE from receiving the measurement set information to measurement and feedback is as follows:

[0067] Step 101: the base station determines the CoMP measurement set of the UE according to the configuration of the cooperating set and the location of the UE;

[0068] Step 102: the base station sends the measurement set information to the UE;

[0069] The base station sends the measurement set information in a unicast manner, specifically, an RRC reconfiguration message may be used, or other messages may carry the measurement set information, and the other message may be a new cooperative set measurement message.

[0070] Step 103: After the UE receives and decodes the measurement set information, performs channel measurement on the corresponding cell, calculates the channel information, and selects all or part of the cell channel state information according to certain rules, and feeds back ...

Embodiment 2

[0090] like figure 2 As shown, for the base station that adopts the non-transparent transmission mode of CoMP cooperating set, the processing flow of UE receiving cooperating set information, measurement set information, measurement and feedback is as follows:

[0091] Step 201: the base station sends CoMP cooperating set information in broadcast or unicast form;

[0092] Step 202: After receiving the CoMP cooperating set information, the UE measures and calculates all cell channel state parameters included in the cooperating set;

[0093] Step 203: The UE feeds back the measured cell channel state information in an implicit or explicit manner;

[0094] Step 204: The base station receives the cell channel state information fed back by the UE, and decides whether to perform coordinated multi-point transmission for the UE according to the feedback information; if the base station decides not to perform coordinated multi-point transmission for the UE, when the set period arrive...

Embodiment 3

[0127] like image 3 As shown, for the base station that adopts the non-transparent transmission mode of CoMP cooperating set, the processing flow of UE receiving cooperating set information, measurement set information, measurement and feedback is as follows:

[0128] Step 301: the base station sends CoMP cooperating set information in broadcast or unicast form;

[0129] Step 302: After receiving the CoMP cooperating set information, the UE selects the channel state parameter corresponding to the cell appearing in the neighbor cell list for measurement and calculation;

[0130] Step 303: The UE feeds back the channel state information to the base station in an implicit or explicit manner according to the obtained measurement parameters;

[0131] Step 304: The base station receives the cell channel state information fed back by the UE, and decides whether to perform coordinated multi-point transmission for the UE according to the feedback information; if the base station deci...

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Abstract

The invention provides a multi-point coordinated processing method. When a coordinated multi-point transmission / reception (CoMP) set is public to UE (User Equipment), the method comprises the following steps: confirming a measurement set of the UE by a base station; sending the measurement set to the UE; receiving measurement set information by the UE; performing channel measurement on a cell in the measurement set and feeding back channel state information to the base station; and deciding whether performing coordinated multi-point emission on the UE by the base station according to the channel state information fed back by the UE. The invention also provides a multi-point coordinated processing system. According to the method and system provided by the invention, related coordinated system information can be publicly or secretly sent by the base station; after the system information is received, the corresponding measurement and feedback can be performed by the UE; and finally, under the coordinated action of the base station / cell, the system throughput rate is increased and the coverage of the system for cell edges is increased.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and system for cooperative multi-point processing in a broadband wireless communication system. Background technique [0002] With the development of communication services and the growth of people's needs, future wireless communication systems need to provide services with higher speed, higher spectral efficiency and lower cost. [0003] LTE-A (LTE-Advanced, Long Term Evolution-Advanced) as 3GPP (3 rd generation partnership project, the third generation partnership project) The evolution technology of LTE (long term evolution, long term evolution) has been accepted by the 3GPP organization. [0004] One of the goals of LTE-A is to improve the spectral efficiency and throughput of the system, especially at the cell edge. The reason is that the LTE-A system is a frequency division system with an OFDM (orthogonal frequency division multiplex, orthogonal frequ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W28/16
CPCH04B7/0689H04B7/024H04B7/0626H04W48/16H04W24/10
Inventor 刘敏王文焕
Owner ZTE CORP