Method and apparatus for inter communication device measurement and timing advance in a communication system
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.
1. A method performed by a victim terminal in a wireless communication system, the method comprising:
identifying at least one sounding reference signal (SRS) resource of an aggressor terminal for a cross link interference (CLI) measurement;
identifying at least one received signal strength indication (RSSI) resource for a CLI measurement;
measuring an SRS-reference signal received power (RSRP) based on the at least one SRS resource of the aggressor terminal;
measuring a total received power associated with a RSSI based on the at least one RSSI resource; and
transmitting, to a serving base station (BS) a measurement report including at least one of information associated with the SRS-RSRP or information associated with the RSSI,
wherein a maximum number of the at least one SRS resource to measure the SRS-RSRP is associated with 32, and a maximum number of the at least one SRS resource in a slot to measure the SRS-RSRP is associated with 8.
2. The method of claim 1 , wherein the CLI measurement depends on a propagation delay between the victim terminal and the aggressor terminal.
3. The method of claim 1 , further comprising:
adopting a transmission timing offset of the at least one SRS resource; and
reporting, to the serving BS, information of the transmission timing offset, such that the serving BS is able to determine whether the transmission timing offset has been enabled when receiving the information associated with the SRS-RSRP.
4. A method performed by a serving base station (BS) in a wireless communication system, the method comprising:
transmitting, to a victim terminal, a configuration of a sounding reference signal reference signal received power (SRS-RSRP) measurement for a cross link interference (CLI) measurement;
transmitting, to the victim terminal, a configuration of a received signal strength indication (RSSI) measurement for a CLI measurement; and
receiving, from the victim terminal, a measurement report including at least one of information associated with an SRS-RSRP or information associated with a RSSI,
wherein the SRS-RSRP is associated with at least one sounding reference signal (SRS) resource of an aggressor terminal,
wherein a total received power associated with the RSSI is associated with at least one RSSI resource configured by the serving BS, and
wherein a maximum number of the at least one SRS resource to measure the SRS-RSRP is associated with 32, and a maximum number of the at least one SRS resource in a slot to measure the SRS-RSRP is associated with 8.
5. The method of claim 4 , further comprising:
receiving, from the victim terminal, information of a transmission timing offset of the at least one SRS resource; and
determining whether the transmission timing offset has been enabled when receiving information associated with the SRS-RSRP.
6. A victim terminal in a wireless communication system, the terminal comprising:
a transceiver configured to transmit and receive signals; and
a controller configured to:
identify, at least one sounding reference signal (SRS) resource of an aggressor terminal for a cross link interference (CLI) measurement,
identify at least one received signal strength indication (RSSI) resource for a CLI measurement,
measure an SRS-reference signal received power (RSRP) based on the at least one SRS resource of the aggressor terminal,
measure a total received power associated with a RSSI based on the at least one RSSI resource, and
transmit, to a serving base station (BSI a measurement report including at least one of information associated with the SRS-RSRP or information associated with the RSSI,
wherein a maximum number of the at least one SRS resource to measure the SRS-RSRP is associated with 32, and a maximum number of the at least one SRS resource in a slot to measure the SRS-RSRP is associated with 8.
7. A serving base station (BS) in a wireless communication system, the serving BS comprising:
a transceiver configured to transmit and receive signals; and
a controller configured to:
transmit, to a victim terminal, a configuration of sounding reference signal reference signal received power (SRS-RSRP) measurement for a cross link interference (CLI) measurement,
transmit, to the victim terminal, a configuration of a received signal strength indication (RSSI) measurement for a CLI measurement, and
receive, from the victim terminal, a measurement report including at least one of information associated with an SRS-RSRP or information associated with a RSSI,
wherein the SRS-RSRP is associated with at least one sounding reference signal (SRS) resource of an aggressor terminal,
wherein a total received power associated with the RSSI is associated with at least one RSSI resource configured by the serving BS, and
wherein a maximum number of the at least one SRS resource to measure the SRS-RSRP is associated with 32, and a maximum number of the at least one SRS resource in a slot to measure the SRS-RSRP is associated with 8.
8. The method of claim 1 , wherein the at least one RSSI resource and the at least one SRS resource are located in different slots.
9. The method of claim 1 ,
wherein downlink (DL)-uplink (UL) configurations are exchanged over Xn interfaces between the serving BS and another BS to mitigate the CLI.
10. The method of claim 1 , further comprising:
applying a constant offset relative to a downlink timing of the victim terminal to measure the SRS-RSRP,
wherein the constant offset is determined based on N TA,offset T C .
11. The method of claim 4 , further comprising:
exchanging, with another BS, downlink (DL)-uplink (UL) configurations over Xn interfaces to mitigate the CLI.
12. The method of claim 1 , wherein the at least one RSSI resource and the at least one SRS resource are located in different slots.
13. The victim terminal of claim 6 ,
wherein the at least one RSSI resource and the at least one SRS resource are located in different slots.
14. The victim terminal of claim 6 ,
wherein downlink (DL)-uplink (UL) configurations are exchanged over Xn interfaces between the serving BS and another BS to mitigate the CLI.
15. The victim terminal of claim 6 , wherein the controller is further configured to:
apply a constant offset relative to a downlink timing of the victim terminal to measure the SRS-RSRP,
wherein the constant offset is determined based on N TA,offset T C .
16. The serving BS of claim 7 , wherein the controller is further configured to:
exchange, with another BS, downlink (DL)-uplink (UL) configurations over Xn interfaces to mitigate the CLI.
17. The serving BS of claim 7 ,
wherein the at least one RSSI resource and the at least one SRS resource are located in different slots.