Cross-Link Interference Measurement In Mobile Communications

Patent metadata

Field	Value
Publication number	US-2018367346-A1
Application number	US-201816010363-A
Country	US
Kind code	A1
Filing date	Jun 15, 2018
Priority date	Jun 16, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

Various solutions for cross-link interference (CLI) measurement with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a configuration indicating a zero power (ZP) sounding reference signal (SRS) from a transmit/receive point (TRP). The apparatus may receive an SRS from a user equipment (UE). The apparatus may perform CLI measurement according to the SRS from the UE with the ZP SRS from the TRP.

First claim

What is claimed is:

1 . A method, comprising:
receiving, by a processor of an apparatus, a configuration indicating a zero power (ZP) sounding reference signal (SRS) from a transmit/receive point (TRP); receiving, by the processor, an SRS from a user equipment (UE); and performing, by the processor, cross-link interference (CLI) measurement according to the SRS from the UE with the ZP SRS from the TRP.

2 . The method of claim 1 , further comprising:
receiving, by the processor, a first SRS from the TRP; receiving, by the processor, a second SRS from the UE; and performing, by the processor, downlink channel measurement according to the first SRS and UE-UE interference measurement according to the second SRS at the same time.

3 . The method of claim 1 , further comprising:
receiving, by the processor, a first channel state information-reference signal (CSI-RS) from the TRP; receiving, by the processor, a second CSI-RS from the UE; and performing, by the processor, the downlink channel measurement according to the first CSI-RS and the UE-UE interference measurement according to the second CSI-RS at the same time.

4 . The method of claim 1 , further comprising:
rate matching, by the processor, a ZP channel state information-reference signal (CSI-RS) to the TRP.

5 . The method of claim 1 , further comprising:
transmitting, by the processor, a first channel state information-reference signal (CSI-RS) to the TRP; and transmitting, by the processor, a second CSI-RS to the UE.

6 . A method, comprising:
transmitting, by a processor of an apparatus, a configuration indicating a zero power (ZP) channel state information-reference signal (CSI-RS) to a user equipment (UE); receiving, by the processor, a CSI-RS from a transmit/receive point (TRP); and performing, by the processor, cross-link interference (CLI) measurement according to the CSI-RS from the TRP with the ZP TRP from the UE.

7 . The method of claim 6 , further comprising:
receiving, by the processor, a first sounding reference signal (SRS) from the UE; receiving, by the processor, a second SRS from the TRP; and performing, by the processor, uplink channel measurement according to the first SRS and TRP-TRP interference measurement according to the second SRS at the same time.

8 . The method of claim 6 , further comprising:
receiving, by the processor, a first CSI-RS from the UE; receiving, by the processor, a second CSI-RS from the TRP; and performing, by the processor, the uplink channel measurement according to the first CSI-RS and the TRP-TRP interference measurement according to the second CSI-RS at the same time.

9 . The method of claim 6 , further comprising:
rate matching, by the processor, a ZP sounding reference signal (SRS) to the UE.

10 . The method of claim 6 , further comprising:
transmitting, by the processor, a first sounding reference signal (SRS) to the UE; and transmitting, by the processor, a second SRS to the TRP.

11 . An apparatus, comprising:
a transceiver capable of wirelessly communicating with a plurality of nodes of a wireless network; and a processor communicatively coupled to the transceiver, the processor capable of:
receiving, via the transceiver, a configuration indicating a zero power (ZP) sounding reference signal (SRS) from a transmit/receive point (TRP);
receiving, via the transceiver, an SRS from a user equipment (UE); and
performing cross-link interference (CLI) measurement according to the SRS from the UE with the ZP SRS from the TRP.

12 . The apparatus of claim 11 , wherein the processor is further capable of:
receiving, via the transceiver, a first SRS from the TRP; receiving, via the transceiver, a second SRS from the UE; and performing downlink channel measurement according to the first SRS and UE-UE interference measurement according to the second SRS at the same time.

13 . The apparatus of claim 11 , wherein the processor is further capable of:
receiving, via the transceiver, a first channel state information-reference signal (CSI-RS) from the TRP; receiving, via the transceiver, a second CSI-RS from the UE; and performing the downlink channel measurement according to the first CSI-RS and the UE-UE interference measurement according to the second CSI-RS at the same time.

14 . The apparatus of claim 11 , wherein the processor is further capable of:
rate matching a ZP channel state information-reference signal (CSI-RS) to the TRP.

15 . The apparatus of claim 11 , wherein the processor is further capable of:
transmitting, via the transceiver, a first channel state information-reference signal (CSI-RS) to the TRP; and transmitting, via the transceiver, a second CSI-RS to the UE.

16 . An apparatus, comprising:
a transceiver capable of wirelessly communicating with a plurality of nodes of a wireless network; and a processor communicatively coupled to the transceiver, the processor capable of:
transmitting, via the transceiver, a configuration indicating a zero power (ZP) channel state information-reference signal (CSI-RS) to a user equipment (UE);
receiving, via the transceiver, a CSI-RS from a transmit/receive point (TRP); and
performing cross-link interference (CLI) measurement according to the CSI-RS from the TRP with the ZP TRP from the UE.

17 . The apparatus of claim 16 , wherein the processor is further capable of:
receiving, via the transceiver, a first sounding reference signal (SRS) from the UE; receiving, via the transceiver, a second SRS from the TRP; and performing uplink channel measurement according to the first SRS and TRP-TRP interference measurement according to the second SRS at the same time.

18 . The apparatus of claim 16 , wherein the processor is further capable of:
receiving, via the transceiver, a first CSI-RS from the UE; receiving, via the transceiver, a second CSI-RS from the TRP; and performing the uplink channel measurement according to the first CSI-RS and the TRP-TRP interference measurement according to the second CSI-RS at the same time.

19 . The apparatus of claim 16 , wherein the processor is further capable of:
rate matching a ZP sounding reference signal (SRS) to the UE.

20 . The apparatus of claim 16 , wherein the processor is further capable of:
transmitting, via the transceiver, a first sounding reference signal (SRS) to the UE; and transmitting, via the transceiver, a second SRS to the TRP.

Assignees

• Mediatek Inc

Inventors

• Chen Bo-Si
• Yang Weidong

Classifications

• H04L25/0224 Primary

  using sounding signals · CPC title

• H04B17/345 Primary

  Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) · CPC title

• H04L1/0026

  Transmission of channel quality indication · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04W52/325

  Power control of control or pilot channels · CPC title