IP Library › Granted Patent US 11,930,520
Granted Patent B2
US 11,930,520 · App. 17/214,030 · Granted Mar 12, 2024

Interference management in wireless systems

Inventors: Hanqing Xu (Guangdong, CN); Yajun Zhao (Guangdong, CN); Jun Xu (Guangdong, CN); Mengzhu Chen (Guangdong, CN)
Assignee: ZTE Corporation
H04W72/541H04W72/0446
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,930,520
App. No.
17/214,030
Granted
Mar 12, 2024
Kind
B2
Abstract

A method of wireless communication includes receiving, at a first communication node, information that includes one or more parameters indicating a time-domain characteristic of one or more interfered symbols due to a remote interference between the first communication node and a second communication node. The method also includes performing, by the first communication node, subsequent communications based on the information.

Claims (51)

1. A wireless communication method, comprising:

receiving, at a first communication node, information that includes one or more parameters indicating a time-domain characteristic of one or more interfered symbols due to a remote interference between the first communication node and a second communication node; and

performing, by the first communication node, subsequent communications based on the information,

wherein the first communication node and the second communication node agree to operate using a maximum downlink transmission boundary and a maximum uplink transmission boundary within a downlink-uplink switching period, and

wherein the one or more parameters include a first parameter and a second parameter, the first parameter indicating a first time-domain distance between a last downlink symbol configured by the second communication node and the maximum downlink transmission boundary, and the second parameter indicating a second time-domain distance between a first uplink symbol configured by the second communication node and the maximum uplink transmission boundary.

2. The method of claim 1 , comprising:

receiving, at the first communication node, a reference signal from the second communication node indicating the remote interference, wherein the reference signal carries a first identifier that identifies a communication node set to which the second communication node belongs.

3. The method of claim 2 , comprising:

receiving, at the first communication node, information from the communication node set indicating a second identifier that identifies the second communication node within the communication node set.

4. The method of claim 2 , comprising:

receiving, at the first communication node, the reference signal again from the second communication node, the reference signal carrying a second identifier that identifies the second communication node within the communication node set.

5. The method of claim 1 , wherein performing the subsequent communications includes:

performing, by the first communication node, an interference mitigation scheme based on the information, wherein performing the mitigation scheme comprises:

transmitting, by the first communication node, a second reference signal based on a parameter, wherein the parameter indicates that the second reference signal is transmitted for indicating whether an atmospheric ducting phenomenon persists.

6. A wireless communication method, comprising:

transmitting, from the first communication node, information that includes one or more parameters indicating a time-domain characteristic of one or more interfered symbols due to a remote interference between the first communication node and a second communication node; and

performing, by the first communication node, subsequent communications in response to the information,

wherein the first communication node and the second communication agree to operate using a maximum downlink transmission boundary and a maximum uplink transmission boundary within a downlink-uplink switching period, and

wherein the one or more parameters include a first parameter and a second parameter, the first parameter indicating a first time-domain distance between a last downlink symbol configured by the first communication node and the maximum downlink transmission boundary, and the second parameter indicating a second time-domain distance between a first uplink symbol configured by the first communication node and the maximum uplink transmission boundary.

7. The method of claim 6 , comprising:

transmitting, from the first communication node, a reference signal indicating the remote interference to the second communication node, wherein the reference signal carries a first identifier that identifies a communication node set to which the first communication node belongs.

8. The method of claim 7 , comprising:

transmitting information indicating a second identifier that identifies the first communication node within the communication node set.

9. The method of claim 7 , wherein transmitting the information comprises:

re-transmitting, by the first communication node, the reference signal carrying the second identifier.

10. The method of claim 6 , wherein the time-domain characteristic of the one or more interfered symbols includes at least one of: time-domain locations of the one or more interfered symbols, a number of the one or more interfered symbols, a duration of the one or more interfered symbols, one or more interference levels of the one or more interfered symbols, or a number of symbols to be muted in the subsequent transmissions.

11. A wireless communication apparatus, comprising a processor configured to:

receive information that includes one or more parameters indicating a time-domain characteristic of one or more interfered symbols due to a remote interference between the apparatus and a second communication node; and

performing subsequent communications based on the information,

wherein the first communication node and the second communication node agree to operate using a maximum downlink transmission boundary and a maximum uplink transmission boundary within a downlink-uplink switching period, and

wherein the one or more parameters include a first parameter and a second parameter, the first parameter indicating a first time-domain distance between a last downlink symbol configured by the second communication node and the maximum downlink transmission boundary, and the second parameter indicating a second time-domain distance between a first uplink symbol configured by the second communication node and the maximum uplink transmission boundary.

12. The apparatus of claim 11 , wherein the processor is configured to:

receive a reference signal from the second communication node indicating the remote interference, wherein the reference signal carries a first identifier that identifies a communication node set to which the second communication node belongs.

13. The apparatus of claim 12 , wherein the processor is further configured to:

receive information from the communication node set indicating a second identifier that identifies the second communication node within the communication node set.

14. The apparatus of claim 12 , wherein the processor is further configured to:

receive the reference signal again from the second communication node, the reference signal carrying a second identifier that identifies the second communication node within the communication node set.

15. The apparatus of claim 11 , wherein the processor is configured to perform the subsequent communications by:

perform an interference mitigation scheme based on the information, wherein performing the mitigation scheme comprises:

transmitting a second reference signal based on a parameter, wherein the parameter indicates that the second reference signal is transmitted for indicating whether an atmospheric ducting phenomenon persists.

16. A wireless communication apparatus, comprising a processor configured to:

transmit information that includes one or more parameters indicating a time-domain characteristic of one or more interfered symbols due to a remote interference between the first communication node and a second communication node; and

perform subsequent communications in response to the information,

wherein the first communication node and the second communication agree to operate using a maximum downlink transmission boundary and a maximum uplink transmission boundary within a downlink-uplink switching period, and

wherein the one or more parameters include a first parameter and a second parameter, the first parameter indicating a first time-domain distance between a last downlink symbol configured by the first communication node and the maximum downlink transmission boundary, and the second parameter indicating a second time-domain distance between a first uplink symbol configured by the first communication node and the maximum uplink transmission boundary.

17. The apparatus of claim 16 , wherein the processor is configured to:

transmit a reference signal indicating the remote interference to the second communication node, wherein the reference signal carries a first identifier that identifies a communication node set to which the first communication node belongs.

18. The apparatus of claim 17 , wherein the processor is configured to:

transmit information indicating a second identifier that identifies the first communication node within the communication node set.

19. The apparatus of claim 17 , wherein the processor is configured to transmit the information by re-transmitting the reference signal carrying the second identifier.

20. The apparatus of claim 16 , wherein the time-domain characteristic of the one or more interfered symbols includes at least one of: time-domain locations of the one or more interfered symbols, a number of the one or more interfered symbols, a duration of the one or more interfered symbols, one or more interference levels of the one or more interfered symbols, or a number of symbols to be muted in the subsequent transmissions.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2021
From: XU, HANQING; ZHAO, YAJUN; XU, JUN; CHEN, MENGZHU
To: ZTE CORPORATION
Reel/Frame 055735/0648 →
Continuity (2)
Continuation PCTCN2018108144 · Sep 27, 2018
Related Publication 20210219304A1 · Jul 15, 2021