Coordinated multi-point (COMP) measurement set notification method and device

A technology for measurement collection and notification, applied in the field of communication, can solve the problems of inability to effectively feed back channel information of COMP cells, and inability to learn and feed back channel information of multiple COMP cells, etc.

Inactive Publication Date: 2012-02-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In COMP technology, whether it is Coordinated Scheduling (CS) / CB or JT, it is necessary to feed back the channel information of multiple COMP cells; but at present, the user equipment (UE) can only know the physical ID of the serving cell, but cannot know the channel information used to feed back multiple COMP cells. information about the channel information of a COMP cell, so it is impossible to effectively feed back the channel information of the COMP cell

Method used

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  • Coordinated multi-point (COMP) measurement set notification method and device
  • Coordinated multi-point (COMP) measurement set notification method and device
  • Coordinated multi-point (COMP) measurement set notification method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Suppose a list of adjacent cells with 32 cells is shown in Table 1:

[0058]

[0059] Table 1

[0060] The value range of ID1 to ID32 is 0 to 504, respectively representing the physical ID of each cell, and IDi≠IDj, 1≤i

[0061] Since the eNB will notify the UE of possible configuration changes of the adjacent cell list through high-level signaling every once in a while, so the eNB and the UE store the same adjacent cell list for a period of time, and the eNB may consider selecting a measurement set from the adjacent cell list , the above-mentioned high-level signaling may be transmitted in the radio resource control information. The transmission method can be a bitmap method, as shown in the adjacent cell list, each adjacent cell list contains IDs of 32 cells arranged in a certain order, so you can add certain information in CQI-ReportConfig to indicate the measurement The neighborhoods in the set.

[0062] The above CQI-ReportConfig is an IE item in the ra...

Embodiment 2

[0067] Suppose a list of same-frequency adjacent cells with 16 cells is shown in Table 2:

[0068]

[0069] Table 2

[0070] The value range of ID1 to ID16 is 0 to 504, respectively representing the physical ID of each cell, and IDi≠IDj, 1≤i

[0071] Since the eNB will notify the UE of possible changes in the configuration of the same-frequency adjacent cell list through high-level signaling every once in a while, the eNB and the UE both store the same same-frequency adjacent cell list for a period of time, and the eNB can consider The measurement set is selected from the cell list, and the above-mentioned high-level signaling can be transmitted in the radio resource control information. The method of transmission can be the method of bitmap, as shown in the adjacent cell list, each same-frequency adjacent cell list contains the IDs of 16 cells arranged in a certain order, so you can add certain information in CQI-ReportConfig to use To indicate the cells in the mea...

Embodiment 3

[0075] Assume that the last feedback or the list of 8 cells with the strongest RSRP is shown in Table 3:

[0076]

[0077] table 3

[0078] The value range of ID1 to ID8 is 0 to 504, respectively representing the physical ID of each cell, and IDi≠IDj, 1≤i

[0079] Since the eNB will notify the UE of possible configuration changes of the adjacent cell list through high-level signaling every once in a while, the eNB and the UE store the same list of adjacent cells for a period of time, and the UE will periodically or aperiodically report multiple The RSRP of the cell and the list of corresponding cell IDs. The eNB and UE store the same feedback RSRP cell list for a period of time. The eNB may consider selecting a measurement set from the latest reported RSRP cell list or the strongest RSRP cell list, and the above high-level signaling may be transmitted in radio resource control information. The transmission method can be a bitmap method, as shown in the adjacent cell...

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Abstract

The invention discloses a coordinated multi-point (COMP) measurement set notification method and a COMP measurement set notification device. In the method and the device, a coordinated multi-point measurement set to be bed back by user equipment can be determined, and a measurement set indicator can be transmitted to the user equipment according to the determined coordinated multi-point measurement set. By the method and the device, the measurement set for feeding coordinated multi-point cell channel information back can be successfully notified to the user equipment.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for notifying a Coordinated Multipoint (COMP) measurement set. Background technique [0002] In the Long term evolution advanced system (LTE-Advanced or LIE-A), in order to improve the average spectrum utilization rate of the cell and the spectrum utilization rate of the cell edge, the COMP technology and the multi-antenna enhancement technology are adopted. COMP technology is divided into coordinated beamforming (CB) and joint transmission (JT) technology, which can greatly improve the average spectrum efficiency of the cell and the service quality of the cell edge users. In particular, the JT technology can guarantee the service quality of the poor channel quality of the edge cell to a large extent. In COMP technology, whether it is Coordinated Scheduling (CS) / CB or JT, it is necessary to feed back the channel information of multiple COMP cells; but at present, th...

Claims

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Application Information

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IPC IPC(8): H04W24/10H04W68/00
CPCH04J11/0053H04W24/10
Inventor 郭森宝孙云锋朱常青张晨晨魏民
Owner ZTE CORP
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