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CSI-RS resource receiving method and device

A receiving method and resource technology, applied in the receiving field of CSI-RS resources, can solve problems such as errors, affecting CoMP gain, reducing CSI measurement accuracy, etc., to achieve the effect of ensuring CoMP gain and reducing complexity

Active Publication Date: 2013-11-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In a CoMP scenario, if the CSI-RSs of multiple corresponding points indicated by the base station come from different cells, the corresponding CSI-RSs are sent by different cells, and the paging information of these cells is sent independently, and the positions for sending the paging information are independent Yes, the paging parameters used are also independently configured; since the UE can only know the location where the serving cell sends paging information, but does not know the location where other cells send paging information, it does not detect CSI- RS, CSI-RS will still be detected at the position where other cells send paging information, thus obtaining wrong CSI; if the paging information occupies more subframes, the accuracy of CSI measurement may be greatly reduced, affecting the gain of downlink CoMP

Method used

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  • CSI-RS resource receiving method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0054] The first embodiment of the present invention provides a method for receiving CSI-RS resources. The CSI-RS resources may include, but are not limited to, CSI-RS time-frequency configuration resources, CSI-RS sequence configuration resources, etc.; and the method can be used for Any number of antennas and antenna arrays (such as linear arrays, polarized arrays), any duplex system (TDD system or FDD system), and any transmission mode (such as SU-MIMO, MU-MIMO, CoMP) for downlink transmission; figure 1 As shown, the method includes the following steps:

[0055] Step 101: The base station device determines paging resource information corresponding to the CSI-RS resource.

[0056] In the embodiment of the present invention, if the CSI-RS resources configured by the base station equipment for the UE are multiple CSI-RS resources, the paging resource information corresponding to each CSI-RS resource needs to be determined, and the processing of each CSI-RS resource The methods are ...

Embodiment 2

[0087] The second embodiment of the present invention provides a method for receiving CSI-RS resources, such as figure 2 As shown, the method includes the following steps:

[0088] In step 201, the base station device instructs the UE to use three CSI-RS resources to measure CSI. These three CSI-RS resources are issued by the same base station device but belong to different cells.

[0089] Step 202: The base station device uses 2 bits to indicate the paging resource information corresponding to each CSI-RS resource. The paging resource information is the subframe indication parameter Ns, and the paging resource information is sent by the corresponding CSI-RS resource to the paging resource configuration of the cell. Obtained; Among them, the indication content of the indication bit (2 bits) is shown in Table 3.

[0090] table 3

[0091]

[0092] Step 203: After the UE receives the CSI-RS resource information and its corresponding paging resource information (Ns), for each CSI-RS reso...

Embodiment 3

[0097] The third embodiment of the present invention provides a method for receiving CSI-RS resources, such as image 3 As shown, the method includes the following steps:

[0098] In step 301, the base station equipment instructs the UE to use 3 CSI-RS resources to measure CSI. The 3 CSI-RS resources belong to 3 different base stations / cells, and the base station equipment obtains these 3 CSI through interaction with other base stations. -The paging resource configuration of the sending cell of the RS resource is nB.

[0099] Step 302: The base station device uses 3 bits to indicate the paging resource information corresponding to each CSI-RS resource. The paging resource information is the paging density indicator parameter nB, and these 3 bits are used to indicate 8 possible nB values: { 4T, 2T, T, T / 2, T / 4, T / 8, T / 16, T / 32}.

[0100] Step 303: After the UE receives the CSI-RS resource information and its corresponding paging resource information (nB), for each CSI-RS resource, ac...

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Abstract

The invention discloses a CSI-RS resource receiving method and device. The method includes the steps that UE receives paging resource information corresponding to CSI-RS resources from base station equipment; the UE acquires radio frames and radio subframes through the paging resource information corresponding to the CSI-RS resources, wherein the radio frames and the radio subframes are probably used for sending the paging information; the UE receives the CSI-RS resources on other radio subframes except the acquired radio frames and radio subframes. According to the CSI-RS resource receiving method and device, the UE receives the radio frames and the radio subframes in cells corresponding to the CSI-RS resources and does not receive the CSI-RS resources on the radio frames or the radio subframes, wherein the radio frames and the radio subframes are probably used for sending the paging information; therefore, correct CSI can be acquired by the UE to be used for downlink CoMP transmission, wrong CSI will not be acquired, consequently, CoMP gains can be guaranteed, and complexity of the UE can be reduced.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method and equipment for receiving CSI-RS resources. Background technique [0002] CoMP (Coordinated Multipoint Transmission, coordinated multipoint transmission) technology refers to the cooperation between multiple transmission points separated geographically. The multiple transmission points are base stations in different cells, or multiple RRHs (Remote Remote Control) controlled by the same cell base station. Radio Head, remote radio frequency); through the coordinated transmission between multiple transmission points, it can effectively reduce the interference between different transmission points and improve the throughput of users (especially cell edge users). In addition, the transmission point set that directly or indirectly participates in the cooperation of the UE (User Equipment, user equipment) is called the cooperation set, and the transmission point...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 陈文洪高秋彬彭莹
Owner DATANG MOBILE COMM EQUIP CO LTD