TWI693809B - Method and apparatus for cross-link interference measurement in mobile communications - Google Patents

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.

Description

Mobile communication cross-link interference measurement method and device

The present invention relates to mobile communications, and in particular to a cross-link interference (CLI) measurement of user equipment and network devices in mobile communications.

Unless otherwise stated herein, the method described in this section is not prior art to the patent application listed below, and is not admitted to be prior art due to its inclusion in this section.

In LTE (Long-Term Evolution), NR (New Radio), or a newly developed wireless communication system, the CLI may occur in multiple nodes. Each node in the wireless network may be a network device (eg, a Transmit/Receive Point (TRP)) or a communication device (eg, a User Equipment (UE)). The UE can participate in communication with the TRP, another UE, or both at a given time. Therefore, CLI measurements may be associated with three types of node pairs: TRP-TRP, TRP-UE, and UE-UE.

To avoid or mitigate CLI, CLI measurement is required. For example, UE-UE or TRP-TRP interference measurement becomes important and necessary. In order to perform CLI measurements, some reference signals may be needed for node measurements. For example, CSI-RS (Channel State Information-Reference signal) can be used for TRP-TRP interference measurement. SRS (Sounding Reference Signal) can be used for UE-UE interference measurement.

Therefore, for interference management, it becomes important which node or device should transmit or receive a reference signal and perform CLI measurement. In order to facilitate CLI measurements, it is necessary to provide appropriate mechanisms and coordination to transmit and receive reference signals.

The following summary of the invention is illustrative only and is not intended to be limiting in any way. That is, the following overview is provided to introduce the concepts, points, benefits, and advantages of the novel and non-obvious technologies described herein. The selection implementation is further described in the detailed description below. Therefore, the following summary of the invention is not intended to identify essential features of the claimed subject matter, nor is it intended to determine the scope of the claimed subject matter.

The purpose of the present invention is to propose a solution or mechanism to deal with the aforementioned problems related to CLI measurement of user equipment and network devices in mobile communications.

In one aspect, a method includes: a device receiving an indication of zero power (ZP) (SRS configuration) from a TRP. The method further includes: the device receiving an SRS from a UE. The method further includes: the device according to SRS and ZP SRS from this TRP perform CLI measurements.

In one aspect, a method includes a device transmitting a configuration indicating a ZP CSI-RS to a UE. The method also includes the device receiving the CSI-RS from TRP. The method further includes the device performing CLI measurement according to the CSI-RS from the TRP and the ZP CSI-RS from the UE.

In one aspect, an apparatus includes a transceiver capable of wirelessly communicating with a plurality of nodes in a wireless network. The device also includes a processor communicatively coupled to the transceiver. The processor can receive the configuration of ZP SRS from TRP. The processor can also receive SRS from the UE. The processor is further capable of performing CLI measurements based on the SRS from the UE and the ZP SRS from the TRP.

In one aspect, an apparatus includes a transceiver capable of wirelessly communicating with a plurality of nodes in a wireless network. The device also includes a processor communicatively coupled to the transceiver. The processor can transmit the configuration indicating the ZP CSI-RS to the UE. The processor can also receive CSI-RS from TRP. The processor is further capable of performing cross-link interference (CLI) measurements based on the CSI-RS from the TRP and the ZP CSI-RS from the UE.

It is worth noting that although the description provided in this article may be in the context of specific wireless access technologies, networks and network topologies, such as LTE, LTE-A (LTE-Advanced, LTE-Advanced), LTE-A Pro , 5G, NR, IoT (Internet-of-Things, Internet of Things) or NB-IoT (Narrow Band Internet of Things, Narrowband Internet of Things); however, the concepts, solutions and any changes/derivatives proposed in this article can be found in other Types of wireless access technologies are implemented in networks and network topologies. Therefore, the scope of the present disclosure is not limited to the examples described herein.

110, 130, 210, 230, 310, 330, 410, 430: TRP

120, 140, 220, 240, 320, 340, 420, 440: UE

510: Communication device

520: Network device

512, 522: processor

514, 524: memory

516, 526: Transceiver

600, 700: process

610, 620, 630, 710, 720, 730: box

The drawings are included to provide a further understanding of the disclosure, and the drawings are incorporated and constitute a part of the disclosure. The drawings illustrate the embodiments of the present disclosure, and together with the description serve to explain the principles of the present disclosure. Understandably, attached The drawings are not necessarily drawn to scale, because in order to clearly illustrate the concept of the present disclosure, some components may be shown out of proportion to the size in actual implementation.

Figure 1 is a schematic diagram depicting an example scenario under a scenario according to an embodiment of the invention; Figure 2 is a schematic diagram depicting an example scenario under a scenario according to an embodiment of the invention; Figure 3 is a schematic diagram depicting a scenario according to the present invention Example scenario under the scheme of the embodiment of the invention; FIG. 4 is a schematic diagram depicting an example scenario under the scheme of the embodiment of the invention; FIG. 5 is an example communication device and an example network device according to the embodiment of the invention Figure 6 is a flowchart of an example process according to an embodiment of the present invention; Figure 7 is a flowchart of an example process according to an embodiment of the present invention.

Detailed embodiments and implementations of the claimed subject matter are disclosed herein. However, it should be understood that the disclosed embodiments and implementations are merely illustrations of the claimed subject matter, which can be embodied in various forms. However, the present disclosure may be implemented in many different forms, and should not be interpreted as being limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that the description of the present disclosure is thorough and complete, and will fully convey the scope of the present disclosure to those having ordinary knowledge in the field to which the invention belongs. In the following description, details of conventional features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations.

Overview:

Embodiments according to the present disclosure relate to various technologies, methods, solutions, and/or solutions related to CLI measurement of user equipment and network devices in mobile communications. According to the present disclosure, many suitable solutions can be implemented individually or collectively. That is, although these suitable solutions may be described separately below, two or more of these suitable solutions may be implemented in one combination or another combination.

In LTE, NR or newly developed wireless communication systems, CLI may occur in multiple nodes. Each node in the wireless network may be a network device (eg, TRP) or a communication device (eg, UE). The UE participates in communication with the TRP, another UE, or both at a given time. Therefore, CLI measurements may involve three types of node pairs: TRP-TRP, TRP-UE, and UE-UE. Here, the TRP may be an eNB in an LTE-based network or a gNB in a 5G/NR network.

In order to manage or mitigate the CLI, CLI measurement is needed. For example, UE-UE, TRP-TRP or TRP-UE interference measurement becomes important and necessary. In order to perform CLI measurements, some reference signals are needed for node measurements. For example, CSI-RS can be used for TRP-TRP interference measurement, and SRS can be used for UE-UE interference measurement. The signals used for CLI measurement can be classified as CLI Reference Signals (Reference Signal, RS). In other words, CLI RS includes: CSI-RS or SRS.

In order to support CLI measurement and maintain the symmetry of downlink and uplink time slot structures, it is beneficial to make SRS and CSI-RS share the same time-frequency resources and have similar patterns and sequence designs. but, In the case where the wireless communication system does not support CSI-RS and SRS co-design, in order to facilitate CLI measurement, CSI-RS can also be used for TRP-UE or UE-UE interference measurement. SRS can also be used for TRP-UE or TRP-TRP interference measurement. In other words, the UE can also transmit CSI-RS and TRP can also transmit SRS for CLI measurement.

Figure 1 shows an example scenario 100 under a scenario according to an embodiment of the invention. Scenario 100 involves a plurality of UEs (eg, UE 120 and 140) and a plurality of TRPs (eg, TRP 110 and 130), which may be part of a wireless communication network, for example, LTE network, LTE-A network, LTE-A Pro Internet, 5G network, NR network, IoT network, or NB-IoT network. UE 120 may be served by TRP 110. UE 140 may be served by TRP 130. To facilitate UE-UE interference measurement, TRP110 and TRP130 are used to first exchange the timing of the CLI measurement slot. The CLI measurement time slot can be used by the UE or TRP to perform CLI measurement.

In the case where the TRP 130 determines to let the UE 140 measure the CLI, the TRP 130 may be used to rate match the Zero Power (Zero Power, ZP) SRS with the UE 140. Specifically, the TRP 110 may configure the UE 120 to transmit SRS during CLI measurement. The UE 120 is used to transmit SRS during CLI measurement. TRP110 may inform TRP130 of the timing of the CLI measurement slot. The TRP 130 is used to rate match the ZP SRS with the UE 140 during CLI measurement. In other words, the TRP 130 is used to not transmit a signal to the UE 140 during this measurement. The TRP 130 may further transmit a configuration to notify the UE 140 of the occurrence of ZP SRS. The UE 140 may be used to receive the configuration indicating the ZP SRS in the CLI measurement slot. As such, the UE 140 can be used to receive the SRS from the UE 120 and the TRP 130 ZP SRS. The UE 140 is used to perform CLI measurement according to the SRS from the UE 120 and the ZP SRS from the TRP 130. Therefore, the UE 140 can measure the uncontaminated SRS during the CLI measurement. After performing CLI measurement, the UE may further report the measurement result to the TRP 130, or determine whether to transmit uplink data according to the measurement result.

Figure 2 shows an example scenario 200 under a scenario according to an embodiment of the invention. Scenario 200 involves a plurality of UEs (eg, UE 220 and 240) and a plurality of TRPs (eg, TRP 210 and 230), which may be part of a wireless communication network, for example, LTE network, LTE-A network, LTE-A Pro Internet, 5G network, NR network, IoT network, or NB-IoT network. UE 220 may be served by TRP 210. UE 240 may be served by TRP 230. To facilitate TRP-TRP interference measurement, TRP110 and TRP130 are configured to first exchange the timing of the CLI measurement slot. The UE or TRP may use the CLI measurement time slot to perform CLI measurement.

In the case where the TRP 210 determines to measure the CLI, the TRP 210 may configure the UE 220 to rate match the ZP CSI-RS with the TRP 210. Specifically, TRP 230 is used to transmit CSI-RS during CLI measurement. The TRP 230 may first notify the TRP 210 of the timing of the CLI measurement time slot. The TRP 210 may be used for transmission configuration to inform the UE 220 to rate match the ZP CSI-RS during the CLI measurement slot. The UE 220 may be used to receive the configuration indicating the ZP CSI-RS from the TRP 210. The UE 220 can be used to rate match the ZP CSI-RS with the TRP 210 during the CLI measurement time slot. In other words, the UE 220 does not transmit a signal to the TRP 210 in this measurement slot. In this way, TRP210 can receive the CSI-RS from TRP230 and the ZP CSI-RS from UE220. TRP210 is used according to The CSI-RS and the ZP CSI-RS from the UE 220 perform CLI measurement. Therefore, the TRP210 can measure the uncontaminated CSI-RS in the CLI measurement slot. After performing the CLI measurement, the TRP 210 can further determine whether to transmit downlink data or determine its scheduling strategy based on the measurement results.

Figure 3 shows an example scenario 300 under a scenario according to an embodiment of the invention. Scenario 300 involves a plurality of UEs (eg, UE 320 and 340) and a plurality of TRPs (eg, TRP 310 and 330), which may be part of a wireless communication network, for example, LTE network, LTE-A network, LTE-A Pro Internet, 5G network, NR network, IoT network, or NB-IoT network. UE 320 may be served by TRP 310. UE340 may be served by TRP330. To facilitate CLI measurement, TRP can transmit SRS. For example, TRP330 may be used to transmit SRS to UE340 and TRP310.

As shown in FIG. 3, the UE 340 is used to receive the first SRS from the TRP 330. The UE 340 is used to receive the second SRS from the UE 320. Assuming that a good cross-correlation property is maintained between the first SRS and the second SRS, the UE 340 can be used to perform downlink channel measurements based on the first SRS from the TRP 330, and according to the second from the UE 320 SRS performs UE-UE interference measurement.

Similarly, TRP 310 may be used to receive the first SRS from TRP 330. The TRP 310 may be used to receive the second SRS from the UE 320. Assuming that good cross-correlation characteristics are maintained between the first SRS and the second SRS, TRP310 can be used to perform TRP-TRP interference measurements based on the first SRS from TRP330 while performing uplink channels based on the second SRS from UE320 measuring.

Since there are too many UEs in the wireless communication network, in order to maintain orthogonality, a UE-specific reference signal (UE-specific reference signal) may not be feasible. Therefore, the reference signal transmitted by the UE should also be cell-specific. Information about which device (eg, UE or TRP) transmits the reference signal (eg, SRS or CSI-RS) should also be exchanged between TRPs. For example, when measuring the CLI, the UE 340 may not know whether the SRS is transmitted from the UE 320 or the TRP 310. The UE 340 may be used to report the interference strength and cell-specific scrambling code sequence to the TRP 330 only. TRP330 can determine that interference is coming from UE320 based on information from TRP310, and determine its scheduling strategy accordingly.

Figure 4 shows an example scenario 400 under a scenario according to an embodiment of the invention. Scenario 400 involves a plurality of UEs (eg, UE420 and 440) and a plurality of TRPs (eg, TRP410 and 430), which may be part of a wireless communication network, for example, LTE network, LTE-A network, LTE-A Pro Internet, 5G network, NR network, IoT network, or NB-IoT network. UE420 may be served by TRP410. UE 440 may be served by TRP430. To facilitate CLI measurement, the UE can transmit CSI-RS. For example, the UE can transmit CSI-RS to TRP410 and UE440.

As shown in FIG. 4, the UE 440 is used to receive the first CSI-RS from the TRP430. The UE 440 is used to receive the second CSI-RS from the UE 420. Assuming that good cross-correlation characteristics are maintained between the first CSI-RS and the second CSI-RS, the UE 440 performs downlink channel measurement according to the first CSI-RS from the TRP 430, while performing according to the second CSI-RS from the UE 420 UE-UE interference measurement.

Similarly, TRP410 is used to receive the first from TRP430 CSI-RS. The TRP 410 is used to receive the second CSI-RS from the UE 420. Assuming that good cross-correlation characteristics are maintained between the first CSI-RS and the second CSI-RS, TRP410 performs TRP-TRP interference measurement according to the first CSI-RS from TRP430, while performing according to the second CSI-RS from UE420 Uplink channel measurement.

Illustrative implementation:

FIG. 5 shows an exemplary communication device 510 and an exemplary network device 520 according to an embodiment of the present invention. Either of the communication device 510 and the network device 520 can perform various functions to implement the solutions, technologies, processes, and methods related to CLI measurement of user equipment and network devices in wireless communication described herein, including the above description Scenes 100, 200, 300, and 400, and processes 600 and 700 described below.

The communication device 510 may be part of an electronic device, which may be a UE, such as a portable or mobile device, a wearable device, a wireless communication device, or a computing device. For example, the communication device 510 may be implemented in a smart phone, a smart watch, a personal digital assistant, a digital camera, or a computing device such as a tablet computer or a laptop computer. The communication device 510 may be a part of a machine-type device, which may be an IoT or NB-IoT device such as a fixed device, a home appliance, a wired device, or a computing device. For example, the communication device 510 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. Alternatively, the communication device 510 may be implemented in the form of one or a plurality of IC (Integrated-Circuit, integrated circuit) chips, such as but not limited to, one or a plurality of single-core processors, one or a plurality of multi-core processors, Or one or more CISC (Complex-Instruction-Set-Computing, complex instruction set calculation) processor. The communication device 510 may include at least a part of the elements such as the processor 512 shown in FIG. 5. The communication device 510 further includes: one or more other components that are not related to the solution proposed in this article, such as an internal power supply, a display device, and/or a user interface device. Therefore, for simplicity, these components of the communication device 510 are not 5 is shown in the figure and is not described below.

The network device 520 may be part of an electronic device, which may be a network node, such as a TRP, base station, small unit, router, or gateway. For example, the network device 520 may be implemented in an eNodeB in an LTE, LTE-A, or LTE-A Pro network, or in a gNB in 5G, NR, IoT, or NB-IoT. Alternatively, the network device 520 may be implemented in the form of one or a plurality of IC chips, such as but not limited to, one or a plurality of single-core processors, one or a plurality of multi-core processors, or one or a plurality of CISC processors . The network device 520 may include at least a part of the elements such as the processor 522 shown in FIG. 5. The network device 520 further includes: one or more other components that are not related to the solution proposed herein, such as internal power supplies, display devices, and/or user interface devices. Therefore, for simplicity, these components of the network device 520 are neither It is shown in Figure 5 and is not described below.

In one aspect, any one of the processors 512 and 522 is implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though the singular term "a processor" is used herein to refer to processors 512 and 522, but Each of the processors 512 and 522 may include a plurality of processors in some embodiments according to the present invention, and may include a single processor in other embodiments according to the present invention. On the other hand, each of the processors 512 and 522 may be implemented in the form of hardware (optionally, firmware) with electronic components such as, but not limited to, for implementing according to the present disclosure The specific purpose of one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors, one or more varactors body. In other words, in at least some embodiments, each of the processors 512 and 522 is specifically designed for special purpose machines to perform specific tasks, such as devices according to various embodiments of the present invention (eg, represented by communication device 510) And the power consumption in the network (eg, represented by network device 520) is reduced.

In some embodiments, the communication device 510 may also include: a transceiver 516, coupled to the processor 512, and capable of wirelessly transmitting and receiving data. In some embodiments, the communication device 510 further includes: a memory 514 coupled to the processor 512 and capable of being accessed by the processor 512 and storing data therein. In some embodiments, the network device 520 may also include a transceiver 526 coupled to the processor 522 and capable of transmitting and receiving data wirelessly. In some embodiments, the network device 520 further includes a memory 524 coupled to the processor 522 and capable of being accessed by the processor 522 and storing data therein. Therefore, the communication device 510 and the network device 520 can communicate with each other wirelessly via the transceivers 516 and 526, respectively. To help better understand, the following provides a description of the operations, functions, and capabilities of each of the communication device 510 and the network device 520 in the context of a mobile communication environment; In a communication environment, the communication device 510 is implemented in a communication device or UE or as a communication device or UE, and the network device 520 is implemented or implemented as a network node of a communication network.

In some embodiments, when the network device 520 determines to let the communication device 510 measure the CLI, the processor 522 is used to rate match the ZP SRS with the communication device 510. Specifically, the communication device 510 is served by the network device 520. There may be neighbor TRP and neighbor UE. The neighbor TRP can configure the neighbor UE to transmit SRS during the CLI measurement slot. Neighboring UEs can be used to transmit SRS during CLI measurement. The neighbor TRP may notify the network device 520 of the timing of the CLI measurement time slot. The processor 522 is used for rate matching between the ZP SRS and the communication device 510 during the CLI measurement time slot. In other words, the processor 522 is used to not transmit a signal to the communication device 510 in the measurement time slot. The processor 522 further transmits the configuration via the transceiver 526 to notify the communication device 510 of the occurrence of ZP SRS. The processor 512 is used to receive the configuration indicating the ZP SRS via the transceiver 516 in the CLI measurement slot. As such, the processor 512 may be used to receive SRS from neighbor UEs and ZP SRS from the network device 520. The processor 512 may be used to perform CLI measurement according to the SRS from the neighbor UE and the ZP SRS from the network device 520. Therefore, the processor 512 can measure the uncontaminated SRS in the CLI measurement slot. After performing the CLI measurement, the processor 512 is further used to report the measurement result to the network device 520, or determine whether to transmit uplink data according to the measurement result.

In some embodiments, when the network device 520 determines to measure the CLI, the processor 522 configures the communication device 510 to rate match the ZP CSI-RS with the network device 520. Specifically, the communication device 510 is served by the network device 520 Business. There may be neighbor TRP and neighbor UE. The neighbor TRP transmits the CSI-RS in the CLI measurement slot. The neighbor TRP may first notify the network device 520 of the timing of the CLI measurement time slot. The processor 522 may be used to transmit a configuration via the transceiver 526 to inform the communication device 510 that the rate matches the ZP CSI-RS in the CLI measurement slot. The processor 512 is used to receive the configuration indicating the ZP CSI-RS from the network device 520. The processor 512 is used to rate match the ZP CSI-RS with the network device 520 in the CLI measurement slot. In other words, the processor 512 is used to not transmit a signal to the network device 520 during the measurement. As such, the processor 522 can receive the CSI-RS from the neighbor TRP and the ZP CSI-RS from the communication device 510. The processor 522 may be used to perform CLI measurement according to the CSI-RS from the neighbor TRP and the ZP CSI-RS from the communication device 510. Therefore, the processor 522 can measure the uncontaminated CSI-RS in the CLI measurement time slot. After performing the CLI measurement, the processor 522 is further used to determine whether to transmit downlink data or determine its scheduling strategy according to the measurement result.

In some embodiments, the network device 520 can transmit SRS via the transceiver 526. For example, the processor 522 is used to transmit the SRS to the communication device 510 and the neighbor TRP. The processor 512 may be used to receive the first SRS from the network device 520 via the transceiver 516. The processor 512 may be used to receive the second SRS from the neighbor UE via the transceiver 516. The processor 512 is configured to perform downlink channel measurement according to the first SRS from the network device 520, and perform UE-UE interference measurement according to the second SRS from the neighbor UE.

In some embodiments, the processor 522 is used to receive the first SRS from the neighbor TRP via the transceiver 526. The processor 522 is used to receive the second SRS from the communication device 510 via the transceiver 526. The processor is used to The first SRS from the neighbor TRP performs the TRP-TRP interference measurement, while performing the uplink channel measurement according to the second SRS from the communication device 510.

In some embodiments, the processor 522 is used to receive information about which device transmits the reference signal (eg, SRS or CSI-RS) from other TRPs via the transceiver 526. When measuring the CLI, the processor 512 may not know that the SRS is transmitted from the neighbor UE or neighbor TRP. The processor 512 is only used to report the interference intensity and the cell-specific scrambling sequence to the network device 520. The processor 522 can determine that interference is coming from the communication device 510 based on information from neighbor TRPs and determine its scheduling strategy accordingly.

In some embodiments, the communication device 510 can transmit the CSI-RS via the transceiver 516. For example, the processor 512 may be used to transmit CSI-RS to the network device 520 and neighbor UEs. The processor 512 may be used to receive the first CSI-RS from the network device 520 via the transceiver 516. The processor 512 is used to receive the second CSI-RS from the neighbor UE via the transceiver 516. The processor 512 is configured to perform downlink channel measurement according to the first CSI-RS from the network device 520, and perform UE-UE interference measurement according to the second CSI-RS of the neighbor UE.

In some embodiments, the processor 522 is used to receive the first CSI-RS from the neighbor TRP via the transceiver 526. The processor 522 is used to receive the second CSI-RS from the communication device 510 via the transceiver 526. The processor 522 is configured to perform TRP-TRP interference measurement based on the first CSI-RS from the neighbor TRP, and perform uplink channel measurement based on the second CSI-RS from the communication device 510.

Illustrative process:

Figure 6 shows an example process 600 according to an embodiment of the invention. Flow 600 may be an example implementation of scenarios 100 and 300 related to CLI measurement according to the present invention, whether partial or complete. The process 600 may represent an aspect of the implementation of the features of the communication device 510. The process 600 may include one or more operations, actions, or functions, as shown in one or more of blocks 610, 620, and 630. Although described as discrete blocks, the various blocks of process 600 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. In addition, the blocks in the process 600 may be executed in the order shown in FIG. 6 or in a different order. The process 600 may be implemented by the communication device 510 or any suitable UE or machine equipment. For illustrative purposes only and not meant to be limiting, the process 600 is described below in the context of the communication device 510. The process 600 begins at block 610.

At 610, the process 600 includes the processor 512 of the device 510 receiving the configuration indicating the ZP SRS from the TRP. The process 600 continues from 610 to 620.

At 620, the process 600 includes the processor 512 receiving the SRS from the UE. The process 600 continues from 620 to 630.

At 630, the process 600 includes the processor 512 performing CLI measurement according to the SRS from the UE and the ZP SRS from the TRP.

In some embodiments, the process 600 may include the processor 512 receiving the first SRS from the TRP. The process 600 may also include: the processor 512 receives the second SRS from the UE. The process 600 further includes: the processor 512 performs downlink channel measurement according to the first SRS, and simultaneously performs UE-UE interference measurement according to the second SRS.

In some embodiments, the process 600 may include: a processor 512 Receive the first CSI-RS from TRP. The process 600 may also include: the processor 512 receives the second CSI-RS from the UE. The process 600 further includes: the processor 512 performs downlink channel measurement according to the first CSI-RS, and simultaneously performs UE-UE interference measurement according to the second CSI-RS.

In some embodiments, the process 600 may include: the processor 512 rate-matches the ZP CSI-RS and TRP.

In some embodiments, the process 600 may include the processor 512 transmitting the first CSI-RS to TRP. The process 600 may also include: the processor 512 transmits the second CSI-RS to the UE.

FIG. 7 shows an example flow 700 according to an embodiment of the present invention. Flow 700 may be an example implementation of scenarios 200 and 400 related to CLI measurement according to the present invention, whether partial or complete. The process 700 may represent an aspect of the implementation of the features of the network device 520. The process 700 may include one or more operations, actions, or functions, as shown in one or more of blocks 710, 720, and 730. Although described as discrete blocks, the various blocks of process 700 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. In addition, the blocks in the process 700 may be executed in the order shown in FIG. 7 or in a different order. The process 700 may be implemented by the network device 520 or any suitable base station or network node. For illustrative purposes only and not meant to be limiting, the process 700 is described below in the context of the communication device 520. The process 700 begins at block 710.

At 710, the process 700 may include: the processor 522 of the apparatus 520 transmits a configuration indicating the ZP CSI-RS to the UE. The process 700 continues from 710 to 720.

At 720, the process 700 includes the processor 522 receiving the CSI-RS from the TRP. The process 700 may continue from 720 to 730.

At 730, the process 700 may include the processor 522 performing CLI measurement according to the CSI-RS from the TRP and the ZP CSI-RS from the UE.

In some embodiments, the process 700 may include the processor 522 receiving the first SRS from the UE. The process 700 may also include: the processor 522 receives the second SRS from the TRP. The process 700 further includes: the processor 522 performs uplink channel measurement according to the first SRS, and simultaneously performs TRP-TRP interference measurement according to the second SRS.

In some embodiments, the process 700 may include the processor 522 receiving the first CSI-RS from the UE. The process 700 also includes the processor 522 receiving the second CSI-RS from the TRP. The process 700 further includes: the processor 512 performs uplink channel measurement according to the first CSI-RS, and simultaneously performs TRP-TRP interference measurement according to the second CSI-RS.

In some embodiments, the process 700 includes the processor 522 rate matching the ZP SRS with the UE.

In some embodiments, the process 700 may include: the processor 522 transmits the first SRS to the UE. The process 700 may also include: the processor 522 transmits the second SRS to the TRP.

Additional notes:

The subject matter described herein sometimes shows that different elements are contained within or connected to other different elements. It should be understood that the architecture described in this way is only an example, and many other architectures capable of obtaining the same function can actually be implemented. In a conceptual sense, any that can achieve the same function The component arrangement is effectively "associated" to obtain the desired function. Therefore, any two elements that are combined here to achieve a specific function may be considered to be “associated” with each other, thereby obtaining the desired function, regardless of architecture or intermediate elements. Likewise, any two elements so associated can also be considered "operably connected" or "operably coupled" to each other to achieve the desired function, and any two elements that can be so associated can also be considered " "Operably coupled" to achieve the desired function with each other. Specific examples of operably coupled include, but are not limited to, physically pairable and/or physically interacting elements and/or wireless interaction and/or wireless interaction elements and/or logical interaction and/or logical interaction elements.

In addition, with regard to the use of basically any plural and/or singular terms herein, those with ordinary knowledge in the field to which the invention belongs may appropriately interpret the plural as singular and/or singular as plural according to the context and/or application. For clarity, various singular/plural permutations can be clearly stated in this article.

In addition, those with ordinary knowledge in the field to which the invention belongs will understand that, in general, the terms used herein, especially the terms in the appended patent application scope (for example, the subject of the appended patent application scope) are generally intended to be "open" Terms such as the term "including" should be interpreted as "including but not limited to", the term "having" should be interpreted as "having at least", the term "including" should be interpreted as "including but not limited to" and so on. Those with ordinary knowledge in the field to which the invention belongs will further understand that if the specified number of patent application ranges listed is intentional, such intentions will be clearly stated in the patent application range, and in the absence of such a statement, no There is such an intention. For example, as an aid to understanding, the following appended patent application scope may include the use of the introductory phrases "at least one" and "one or more" to elicit the enumerated items of the patent application scope. Ran However, even when the scope of the same patent application includes the leading phrase "one or more" or "at least one" and indefinite articles such as "one" or "one", the use of such phrases should not be interpreted as implying The indefinite article "one" or "one" introduces a patent application list item that limits the scope of any particular patent application that includes such a patent application list item to an embodiment that contains only one such list item (eg, "one" and / Or "a" should be interpreted to mean "at least one" or "at least one"); this also applies to the use of definite articles to introduce enumerated items in the scope of the patent application. In addition, even if the scope of the patent application introduced explicitly lists a specific number, those with ordinary knowledge in the field to which the invention belongs will recognize that such a list should be interpreted to mean at least the number listed, for example, “two "Enumerated item" means at least two enumerated items, or two or more enumerated items. In addition, in those cases where a convention similar to "at least one of A, B, and C, etc." is used, generally such a configuration is intended to allow a person having ordinary knowledge in the field to which the invention belongs to understand the meaning of the convention, for example, "have A , A system of at least one of B and C" will include but is not limited to a system with only A, only B, only C, with A and B together, with A and C together, with B and C together , And/or A, B and C together, etc. In those cases where a convention similar to "at least one of A, B, or C, etc." is used, in general, such a construction is intended to make those of ordinary skill in the art of the invention understand the meaning of the convention, for example, "have A system of at least one of A, B or C will include, but is not limited to, systems with only A, only B, only C, with A and B, with A and C together, with B and C and/or A , B and C, etc. Those with ordinary knowledge in the field of the invention will further understand that whether it is in the specification, the scope of the patent application or the drawings, in fact any two or more Any transformable words and/or phrases of multiple selectable terms should be understood as considering the possibility of including one of the terms, any one of the terms, or both of the terms. For example, the phrase "A or B" will be understood to include the possibility of "A" or "B" or "A and B".

As can be understood from the foregoing, for the purpose of illustration, various embodiments of the present disclosure have been described herein, and various modifications can be made without departing from the scope and spirit of the present disclosure. Therefore, the various embodiments disclosed herein are not intended to be limiting, and the true scope and spirit are indicated by the following patent applications.

600: Process

610, 620, 630: frame

Claims (20)

A cross-link interference measurement method includes: a processor of the device receives a configuration indicating a zero power (ZP) sounding reference signal (SRS) from a transmit/receive point (TRP); the processor receives an SRS from a user equipment (UE) ; And the processor performs cross-link interference (CLI) measurement according to the SRS from the UE and the ZPSRS from the TRP. The method according to item 1 of the patent application scope, further comprising: the processor receiving a first SRS from the TRP; the processor receiving a second SRS from the UE; and the processor performing downlink according to the first SRS Link channel measurement, while performing UE-UE interference measurement according to the second SRS. The method as described in item 1 of the patent application scope, further comprising: the processor receiving a first channel state information reference signal (CSI-RS) from the TRP; the processor receiving a second CSI-RS from the UE; And the processor performs downlink channel measurement according to the first CSI-RS, and simultaneously performs UE-UE interference measurement according to the second CSI-RS. The method as described in item 1 of the patent application scope further includes: the processor rate matching the ZPCSI-RS with the TRP. The method as described in item 1 of the patent application scope further includes: the processor transmitting the first CSI-RS to the TRP; and the processor transmitting the second CSI-RS to the UE. A cross-link interference measurement method, including: The processor of the device transmits a configuration indicating a zero power (ZP) channel state information reference signal (CSI-RS) to the user equipment (UE); the processor receives the CSI-RS from the transmit/receive point (TRP); the processor Cross-link interference (CLI) measurement is performed based on the CSI-RS from the TRP and the ZP CSI-RS from the UE. The method according to item 6 of the patent application scope, further comprising: the processor receiving a first sounding reference signal (SRS) from the UE; the processor receiving a second SRS from the TRP; and the processor according to the The first SRS performs uplink channel measurement, and at the same time performs TRP-TRP interference measurement according to the second SRS. The method according to item 6 of the patent application scope, further comprising: the processor receiving a first CSI-RS from the UE; the processor receiving a second CSI-RS from the TRP; and the processor according to the first A CSI-RS performs uplink channel measurement, while performing TRP-TRP interference measurement according to the second CSI-RS. The method as described in item 6 of the patent application scope further includes: the processor rate matching the ZP SRS with the UE. The method as described in item 6 of the patent application scope further includes: the processor transmitting a first SRS to the UE; and the processor transmitting a second SRS to the TRP. A cross-link interference measurement device includes: a transceiver capable of wireless communication with a plurality of nodes in a wireless network; and a processor communicatively coupled to the transceiver, the processor capable of: Receive the configuration indicating zero power (ZP) sounding reference signal (SRS) from the transmit/receive point (TRP) via the transceiver; receive the SRS from the user equipment (UE) via the transceiver; and according to the SRS from the UE And the ZP SRS from the TRP performs cross-link interference (CLI) measurement. The device of claim 11 of the patent application scope, wherein the processor is further capable of: receiving the first SRS from the TRP via the transceiver; receiving the second SRS from the UE via the transceiver; and according to the first The SRS performs downlink channel measurement, and at the same time performs UE-UE interference measurement according to the second SRS. The device of claim 11 of the patent application scope, wherein the processor is further capable of: receiving the first channel state information reference signal (CSI-RS) from the TRP via the transceiver; receiving the UE from the UE via the transceiver A second CSI-RS; and performing downlink channel measurement according to the first CSI-RS, while performing UE-UE interference measurement according to the second CSI-RS. The device as described in item 11 of the patent application scope, wherein the processor is further capable of: rate matching the ZP CSI-RS with the TRP. The device of claim 11 of the patent application scope, wherein the processor further comprises: transmitting the first CSI-RS to the TRP via the transceiver; and The second CSI-RS is transmitted to the UE via the transceiver. A cross-link interference measurement device includes: a transceiver capable of wireless communication with a plurality of nodes in a wireless network; and a processor communicatively coupled to the transceiver, the processor can: pass the transceiver to The user equipment (UE) transmits a configuration indicating a zero power (ZP) channel status information reference signal (CSI-RS); receives the CSI-RS from the transmit/receive point (TRP) via the transceiver; according to the CSI-RS from the TRP The RS and ZP CSI-RS from the UE perform cross-link interference (CLI) measurement. The device of claim 16 of the patent application scope, wherein the processor is further capable of: receiving a first sounding reference signal (SRS) from the UE via the transceiver; receiving a second SRS from the TRP via the transceiver; And performing uplink channel measurement according to the first SRS, while performing TRP-TRP interference measurement according to the second SRS. The device of claim 16 of the patent application scope, wherein the processor is further capable of: receiving the first CSI-RS from the UE via the transceiver; receiving the second CSI-RS from the TRP via the transceiver; and Perform uplink channel measurement based on the first CSI-RS, and perform TRP-TRP interference measurement based on the second CSI-RS. The device as described in item 16 of the patent application scope, wherein the processor is further capable of: Match the ZP SRS with the UE. The device of claim 16 of the patent application scope, wherein the processor is further capable of: transmitting the first SRS to the UE via the transceiver; and transmitting the second SRS to the TRP via the transceiver.

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