Interference measurement method and system, related equipment and storage medium

Patent metadata

Field	Value
Publication number	US-10111124-B2
Application number	US-201414903507-A
Country	US
Kind code	B2
Filing date	Apr 25, 2014
Priority date	Jul 11, 2013
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

Disclosed are an interference measurement method and system, and related equipment. The method includes: a network side configures Interference Measurement Resources for Demodulation (DM-IMRs) for a target data channel of a terminal, positions of the DM-IMRs on a frequency domain being determined according to a Physical Resource Block (PRB) which bears the target data channel; and the network side indicates configuration information of the DM-IMRs to the terminal to enable the terminal to perform transmission interference measurement on the target data channel. By the solutions of the present disclosure, accuracy in transmission interference measurement of the target data channel may be improved, so that improvement in demodulation/decoding performance of the target data channel at a receiving side is facilitated, and receiving performance of the target data channel may further be improved.

First claim

What is claimed is:

1. An interference measurement method, comprising:
configuring, by a network side, Interference Measurement Resources for Demodulation (DM-IMRs) for a target data channel of a terminal, positions of the DM-IMRs on a frequency domain being determined according to a Physical Resource Block (PRB) which bears the target data channel; and
indicating configuration information of the DM-IMRs to the terminal to enable the terminal to perform transmission interference measurement on the target data channel;
wherein the positions of the DM-IMRs on the frequency domain only exist in the PRB which bears the target data channel, and the DM-IMRs are not configured in a sub-frame where a Physical Multicast Channel (PMCH) is located; and
an attribute of the DM-IMRs is that: the network side sends zero power signals on the DM-IMRs, and the target data channel is mapped to the DM-IMRs in a rate matching manner.

2. The method according to claim 1 , wherein
N sets of DM-IMRs are configured for the terminal through high-layer signalling, and DM-IMRs configured for the interference measurement of the current target data channel are indicated to the terminal through |log 2 N| or N-bit physical-layer signalling, wherein N is a positive integer more than 1.

3. The method according to claim 1 , wherein the DM-IMRs comprise one of the following resources:
Resource Element (RE) resources configurable as Zero Power Channel State Information Reference Signals (ZP-CSI-RSs);
RE resources configurable as Channel State Information Reference Signals (CSI-RSs); and
RE resources configurable as Common Reference Signals (CRSs).

4. The method according to claim 3 , wherein when the DM-IMRs are the RE resources configurable as ZP-CSI-RSs,
the DM-IMRs are one or more sets of RE resources configurable as ZP-CSI-RS resources; or
the DM-IMRs are a part of RE resources in one or more sets of RE resources configurable as ZP-CSI-RS resources.

5. The method according to claim 3 , wherein when the DM-IMRs are the RE resources configurable as CSI-RSs,
the DM-IMRs are one or more sets of RE resources configurable as single-antenna or double-antenna port CSI-RS resources; or
the DM-IMRs are one or more sets of RE resources configurable as four-antenna port CSI-RS resources; or
the DM-IMRs are one or more sets of RE resources configurable as eight-antenna port CSI-RS resources.

6. The method according to claim 3 , wherein when the DM-IMRs are the RE resources configurable as CRSs,
the DM-IMRs are RE resources at a position where a serving cell CRS of the terminal is located; or
the DM-IMRs are a part of RE resources at the position where the serving cell CRS of the terminal is located; or
the DM-IMRs are RE resources at a position where an interference cell CRS of the terminal is located; or
the DM-IMRs are a part of RE resources at the position where the interference cell CRS of the terminal is located.

7. The method according to claim 3 , wherein
the RE resources configurable as ZP-CSI-RSs are RE resources configured as ZP-CSI-RSs and supported by a communication system or RE resources configured as ZP-CSI-RSs which are added on the basis of the RE resources configured as ZP-CSI-RSs and supported by the communication system; and
the RE resources configurable as CSI-RSs are RE resources configured as CSI-RSs and supported by the communication system or RE resources configured as CSI-RSs which are added on the basis of the RE resources configured as CSI-RSs and supported by the communication system.

8. The method according to claim 1 , wherein the configuration information of the DM-IMRs is indicated to the terminal in one of the following manners:
one or more sets of DM-IMRs are configured and indicated through high-layer signalling; or,
multiple sets of DM-IMRs are configured through high-layer signalling, and DM-IMRs configured for interference measurement of a current target data channel are indicated to the terminal through physical-layer signalling.

9. The method according to claim 8 , wherein a DM-IMR Information Element (IE) configuration item is set in the high-layer signalling, and the DM-IMR IE configuration item comprises one or more of:
DM-IMR Identifiers (IDs), configured to distinguish different sets of DM-IMRs;
a DM-IMR configuration, configured to indicate RE resource positions of the DM-IMRs in each PRB resource where the target data channel is located; and
a DM-IMR sub-frame configuration, configured to indicate a sub-frame where the DM-IMRs are located.

10. The method according to claim 9 , wherein the DM-IMR configuration comprises at least one of:
a ZP-CSI-RS resource configuration supported by a communication system;
a ZP-CSI-RS resource configuration which is added on the basis of the ZP-CSI-RS resource configuration supported by the communication system;
the ZP-CSI-RS resource configuration supported by the communication system and position indication information of a part of RE resources under each ZP-CSI-RS resource configuration;
the ZP-CSI-RS resource configuration which is added on the basis of the ZP-CSI-RS resource configuration supported by the communication system and the position indication information of the part of RE resources under each ZP-CSI-RS resource configuration;
a single-antenna or double-antenna port CSI-RS resource configuration supported by the communication system;
a single-antenna or double-antenna port CSI-RS resource configuration which is added on the basis of the single-antenna or double-antenna port CSI-RS resource configuration supported by the communication system;
a four-antenna port CSI-RS resource configuration supported by the communication system;
a four-antenna port CSI-RS resource configuration which is added on the basis of the four-antenna port CSI-RS resource configuration supported by the communication system;
an eight-antenna port CSI-RS resource configuration supported by the communication system;
an eight-antenna port CSI-RS resource configuration which is added on the basis of the eight-antenna port CSI-RS resource configuration supported by the communication system;
position indication information of RE resources at a position where a serving cell CRS of the terminal is located;
position indication information of the part of RE resources at the position where the serving cell CRS of the terminal is located;
position indication information of RE resources at a position where an interference cell CRS of the terminal is located; and
position indication information of the part of RE resources at the position where the interference cell CRS of the terminal is located.

11. The method according to claim 9 , wherein the DM-IMR sub-frame configuration comprises at least one of:
a CSI-RS sub-frame configuration supported by the communication system;
a CSI-RS sub-frame configuration which is added on the basis of the CSI-RS sub-frame configuration supported by the communication system; and
a sub-frame configuration which bears the target data channel.

12. The method according to claim 9 , wherein a representation manner for the DM-IMR configuration comprises one of the following manners that:
the DM-IMR configuration is characterized by 16 or 16+X or X-bit high-layer signalling, and ZP-CSI-RS resources configured as DM-IMRs are indicated to the terminal in a bitmap manner, wherein X represents the added ZP-CSI-RS resource configuration in the communication system, and X is a positive integer;
the DM-IMR configuration is characterized by 32 or 32+Y1 or Y1-bit high-layer signalling, and single-antenna or double-antenna port CSI-RS resources configured as DM-IMRs are indicated to the t

Assignees

• Zte Corp

Inventors

• Gong Yuhong
• Sun Yunfeng
• Li Yu Ngok

Classifications

• H04L5/0071

  Allocation based on fairness other than the proportional kind · CPC title

• H04L5/005 Primary

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title