Processing method for channel measurement, base station, and user equipment

• US 9,591,506 B2
• Filed: 02/24/2015
• Issued: 03/07/2017
• Est. Priority Date: 09/04/2012
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Chen, Xiaobo, Li, Qiang, Fan, Xiaoan, Xiao, Weimin
• Primary Examiner(s): Lin, Kenny
• Application Number:
  US14/630,049
• Publication Number:
  US 20150172951A1
• Time in Patent Office: 742 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

Abstract

This application provides a processing method for channel measurement, a base station, and a user equipment, where the method includes: receiving an interference report from a user equipment; and determining, according to the interference report, at least two measurement sets for the user equipment, and notifying the at least two measurement sets to the user equipment. In this application, a measurement set is determined according to an interference report reported by a user equipment, so that the determined measurement set is more adaptive to a current interference situation of the user equipment, and then channel quality of a subframe of the user equipment can be measured accurately.

Claims

1. A processing method for channel measurement, the method comprising:

receiving an interference report from a user equipment;

determining, according to the interference report, at least two measurement sets for the user equipment;

notifying the at least two measurement sets to the user equipment; and

wherein the determining, according to the interference report, at least two measurement sets for the user equipment comprises;

determining, according to the interference report, at least one flexible subframe in subframes corresponding to the interference report, and

determining the determined at least one flexible subframe as a second measurement set, and determining at least one subframe in all subframes comprised in one frame other than the subframe in the second measurement set as a first measurement set.

2. The method according to claim 1, wherein determining, according to the interference report, the at least two measurement sets for the user equipment comprises one of the following manners:

determining, according to the interference report, all flexible subframes having uplink and downlink interference in the subframes corresponding to the interference report, determining all the flexible subframes having uplink and downlink interference in the subframes corresponding to the interference report as a second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, all flexible subframes having uplink and downlink interference in the subframes corresponding to the interference report, determining each flexible subframe having uplink and downlink interference as one second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe in the subframes corresponding to the interference report, determining the flexible subframe having an interference level different from that of a downlink subframe as a second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe and a flexible subframe having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report, determining the flexible subframe having an interference level different from that of a downlink subframe as a second measurement set, determining the flexible subframe having an interference level the same as that of a downlink subframe as one first measurement set, and determining all downlink subframes comprised in one frame as another first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe in the subframes corresponding to the interference report, determining each flexible subframe having an interference level different from that of a downlink subframe as one second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe in the subframes corresponding to the interference report, determining, according to an interference level, the flexible subframe having an interference level different from that of a downlink subframe as at least one second measurement set, wherein each second measurement set is corresponding to one interference level, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe and a flexible subframe having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report, determining each flexible subframe having an interference level different from that of a downlink subframe as one second measurement set, determining the flexible subframe having an interference level the same as that of a downlink subframe as one first measurement set, and determining all downlink subframes comprised in one frame as another first measurement set; and

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe and a flexible subframe having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report, determining, according to an interference level, the flexible subframe having an interference level different from that of a downlink subframe as at least one second measurement set, wherein each second measurement set is corresponding to one interference level, determining the flexible subframe having an interference level the same as that of a downlink subframe as one first measurement set, and determining all downlink subframes comprised in one frame as another first measurement set.

3. The method according to claim 1, wherein the interference report is generated by the user equipment according to interference measurement performed on a first subframe set, wherein the first subframe set is one of the following:

a universal set formed by all subframes available for downlink data transmission that are comprised in one frame or a subset of the universal set, wherein the universal set or the subset of the universal set comprises a flexible subframe;

a universal set formed by all flexible subframes comprised in one frame or a subset of the universal set; and

a universal set formed by all flexible subframes having uplink and downlink interference that are comprised in one frame or a subset of the universal set.

4. The method according to claim 1, wherein the interference report comprises at least one of the following:

indication information of a subframe having an interference level different from that of a downlink subframe, interference signal intensity of each subframe measured by the user equipment, and an interference level of each subframe measured by the user equipment.

5. The method according to claim 1, further comprising:

receiving channel state information that is corresponding to each measurement set in the at least two measurement sets and is reported by the user equipment; and

performing, according to the channel state information, modulation and coding scheme setting and/or power control on subframes in different measurement sets separately.

6. A processing method for channel measurement, the method comprising:

generating an interference report;

sending the interference report to a base station, so that the base station determines, according to the interference report, at least two measurement sets for a user equipment;

receiving the at least two measurement sets notified by the base station;

measuring channel state information for each of the at least two measurement sets, and reporting, to the base station, the channel state information corresponding to each of the at least two measurement sets; and

wherein a second measurement set in the at least two measurement sets comprises only a flexible subframe, and a first measurement set in the at least two measurement sets comprises at least one subframe in all subframes comprised in one frame other than the subframe in the second measurement set.

7. The method according to claim 6, wherein the at least two measurement sets comprise a first measurement set and a second measurement set, and the first measurement set and the second measurement set are one of the following:

the second measurement set comprises only all flexible subframes having uplink and downlink interference in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

each second measurement set comprises only one flexible subframe having uplink and downlink interference in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

the second measurement set comprises only all flexible subframes having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

the second measurement set comprises only all flexible subframes having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, one first measurement set comprises all downlink subframes comprised in one frame, and another first measurement set comprises all flexible subframes having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report;

each second measurement set comprises only one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

each second measurement set comprises only at least one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, wherein the flexible subframe in each second measurement set is corresponding to one interference level, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

each second measurement set comprises only one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, one first measurement set comprises all downlink subframes comprised in one frame, and another first measurement set comprises all flexible subframes having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report; and

each second measurement set comprises only at least one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, wherein the flexible subframe in each second measurement set is corresponding to one interference level, one first measurement set comprises all downlink subframes comprised in one frame, and another first measurement set comprises all flexible subframes having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report.

8. The method according to claim 6, wherein generating the interference report comprises:

generating the interference report according to interference measurement performed on a first subframe set comprising;

determining a flexible subframe according to the interference measurement performed on the first subframe set; and

generating the interference report, wherein the interference report comprises information of the flexible subframe.

9. The method according to claim 6, wherein generating the interference report according to interference measurement performed on the first subframe set comprises one of the following manners:

determining, according to the interference measurement performed on the first subframe set, a subframe having an interference level different from that of a downlink subframe in subframes corresponding to the first subframe set, and generating the interference report, wherein the interference report comprises indication information of the subframe having an interference level different from that of a downlink subframe;

determining, according to the interference measurement performed on the first subframe set, interference signal intensity of each subframe in the first subframe set, and generating the interference report, wherein the interference report comprises the interference signal intensity of each subframe in the first subframe set; and

determining, according to the interference measurement performed on the first subframe set, an interference level of each subframe in the first subframe set, and generating the interference report, wherein the interference report comprises the interference level of each subframe in the first subframe set.

10. The method according to claim 6, wherein:

the first subframe set is one of the following;

a universal set formed by all subframes available for downlink data transmission that are comprised in one frame or a subset of the universal set, wherein the universal set or the subset of the universal set comprises a flexible subframe,

a universal set formed by all flexible subframes comprised in one frame or a subset of the universal set, and

a universal set formed by all flexible subframes having uplink and downlink interference that are comprised in one frame or a subset of the universal set; and

before generating the interference report, the method further comprises one of the following;

receiving the first subframe set sent by the base station,

determining the first subframe set, and

obtaining the predetermined first subframe set.

11. A base station, comprising:

a receiver, configured to receive an interference report from a user equipment;

a processor, configured to determine, according to the interference report, at least two measurement sets for the user equipment, and notify the at least two measurement sets to the user equipment; and

wherein the processor is configured to determine, according to the interference report, the at least two measurement sets for the user equipment in the following manner;

determining, according to the interference report, at least one flexible subframe in subframes corresponding to the interference report, determining the determined at least one flexible subframe as a second measurement set, and determining at least one subframe in all subframes comprised in one frame other than the subframe in the second measurement set as a first measurement set.

12. The base station according to claim 11, wherein the processor is configured to determine, according to the interference report, the at least two measurement sets for the user equipment in one of the following manners:

determining, according to the interference report, all flexible subframes having uplink and downlink interference in the subframes corresponding to the interference report, determining all the flexible subframes having uplink and downlink interference in the subframes corresponding to the interference report as a second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, all flexible subframes having uplink and downlink interference in the subframes corresponding to the interference report, determining each flexible subframe having uplink and downlink interference as one second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe in the subframes corresponding to the interference report, determining the flexible subframe having an interference level different from that of a downlink subframe as a second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe and a flexible subframe having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report, determining the flexible subframe having an interference level different from that of a downlink subframe as one second measurement set, determining the flexible subframe having an interference level the same as that of a downlink subframe as one first measurement set, and determining all downlink subframes comprised in a frame as another first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe in the subframes corresponding to the interference report, determining each flexible subframe having an interference level different from that of a downlink subframe as one second measurement set, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe in the subframes corresponding to the interference report, determining, according to an interference level, the flexible subframe having an interference level different from that of a downlink subframe as at least one second measurement set, wherein each second measurement set is corresponding to one interference level, and determining a remaining subframe available for downlink data transmission in one frame as a first measurement set;

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe and a flexible subframe having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report, determining each flexible subframe having an interference level different from that of a downlink subframe as one second measurement set, determining the flexible subframe having an interference level the same as that of a downlink subframe as one first measurement set, and determining all downlink subframes comprised in one frame as another first measurement set; and

determining, according to the interference report, a flexible subframe having an interference level different from that of a downlink subframe and a flexible subframe having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report, determining, according to an interference level, the flexible subframe having an interference level different from that of a downlink subframe as at least one second measurement set, wherein each second measurement set is corresponding to one interference level, determining the flexible subframe having an interference level the same as that of a downlink subframe as one first measurement set, and determining all downlink subframes comprised in one frame as another first measurement set.

13. The base station according to claim 11, wherein the interference report is generated by the user equipment according to interference measurement performed on a first subframe set, wherein the first subframe set is one of the following:

a universal set formed by all subframes available for downlink data transmission that are comprised in one frame or a subset of the universal set, wherein the universal set or the subset of the universal set comprises a flexible subframe;

a universal set formed by all flexible subframes comprised in one frame or a subset of the universal set; and

a universal set formed by all flexible subframes having uplink and downlink interference that are comprised in one frame or a subset of the universal set.

14. The base station according to claim 11, wherein the interference report comprises at least one of the following:

indication information of a subframe having an interference level different from that of a downlink subframe, interference signal intensity of each subframe measured by the user equipment, and an interference level of each subframe measured by the user equipment.

15. The base station according to claim 11, wherein:

the receiver is configured to, for each measurement set in the at least two measurement sets, receive channel state information reported by the user equipment; and

the processor is further configured to perform, according to the channel state information, modulation and coding scheme setting and/or power control on subframes in different measurement sets separately.

16. A user equipment, comprising:

a processor, configured to generate an interference report;

a transmitter, configured to send the interference report to a base station, so that the base station determines, according to the interference report, at least two measurement sets for the user equipment;

a receiver, configured to receive the at least two measurement sets notified by the base station;

wherein the processor is further configured to measure channel state information for each of the at least two measurement sets;

wherein the transmitter is further configured to report, to the base station, the channel state information corresponding to each of the at least two measurement sets; and

wherein a second measurement set in the at least two measurement sets comprises only a flexible subframe, and a first measurement set in the at least two measurement sets comprises at least one subframe in all subframes comprised in one frame other than the subframe in the second measurement set.

17. The user equipment according to claim 16, wherein the at least two measurement sets comprise a first measurement set and a second measurement set, and the first measurement set and the second measurement set are one of the following:

the second measurement set comprises only all flexible subframes having uplink and downlink interference in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

each second measurement set comprises only one flexible subframe having uplink and downlink interference in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

the second measurement set comprises only all flexible subframes having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

the second measurement set comprises only all flexible subframes having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, one first measurement set comprises all downlink subframes comprised in one frame, and another first measurement set comprises all flexible subframes having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report;

each second measurement set comprises only one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

each second measurement set comprises only at least one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, wherein the flexible subframe in each second measurement set is corresponding to one interference level, and the first measurement set comprises a remaining subframe available for downlink data transmission in one frame;

each second measurement set comprises only one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, one first measurement set comprises all downlink subframes comprised in one frame, and another first measurement set comprises all flexible subframes having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report; and

each second measurement set comprises only at least one flexible subframe having an interference level different from that of a downlink subframe in subframes corresponding to the interference report, wherein the flexible subframe in each second measurement set is corresponding to one interference level, one first measurement set comprises all downlink subframes comprised in one frame, and another first measurement set comprises all flexible subframes having an interference level the same as that of a downlink subframe in the subframes corresponding to the interference report.

18. The user equipment according to claim 16, wherein the processor is configured to generate the interference report in the following manner:

generate the interference report according to interference measurement performed on a first subframe set, comprising;

determining a flexible subframe according to the interference measurement performed on the first subframe set; and

generating the interference report, wherein the interference report comprises information of the flexible subframe.

19. The user equipment according to claim 16, wherein the processor is configured to generate, according to the interference measurement performed on the first subframe set, the interference report in one of the following manners:

determining, according to the interference measurement performed on the first subframe set, a subframe having an interference level different from that of a downlink subframe in subframes corresponding to the first subframe set, and generating the interference report, wherein the interference report comprises indication information of the subframe having an interference level different from that of a downlink subframe;

determining, according to the interference measurement performed on the first subframe set, interference signal intensity of each subframe in the first subframe set, and generating the interference report, wherein the interference report comprises the interference signal intensity of each subframe in the first subframe set; and

determining, according to the interference measurement performed on the first subframe set, an interference level of each subframe in the first subframe set, and generating the interference report, wherein the interference report comprises the interference level of each subframe in the first subframe set.

20. The user equipment according to claim 16, wherein:

the first subframe set is one of the following;

a universal set formed by all subframes available for downlink data transmission that are comprised in one frame or a subset of the universal set, wherein the universal set or the subset of the universal set comprises a flexible subframe,

a universal set formed by all flexible subframes comprised in one frame or a subset of the universal set, and

a universal set formed by all flexible subframes having uplink and downlink interference that are comprised in one frame or a subset of the universal set; and

the receiver is further configured to receive the first subframe set sent by the base station, or the processor is further configured to determine the first subframe set, or the processor is further configured to obtain the predetermined first subframe set.