Inter distributed unit (inter-DU) crosslink interference (CLI) measurement and reporting
地域：
CA
CA San Diego
摘要
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a distributed unit (DU) of a first integrated access and backhaul (IAB) node may configure an indication of a capability to reuse measurements, associated with a mobile terminal of the first IAB node, as crosslink interference measurements for a DU of a second IAB node. The DU may transmit the indication to a central unit of an IAB donor. Numerous other aspects are provided.
說明書
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This patent application claims priority to U.S. Provisional Patent Application No. 63/078,694, filed on Sep. 15, 2020, entitled “INTER DISTRIBUTED UNIT (INTER-DU) CROSSLINK INTERFERENCE (CLI) MEASUREMENT AND REPORTING,” and assigned to the assignee hereof. The disclosure of the prior application is considered part of and is incorporated by reference into this patent application.
Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for inter-distributed unit (inter-DU) crosslink interference (CLI) measurement and reporting.
Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
權(quán)利要求
What is claimed is:1. A method of wireless communication performed by a distributed unit (DU) of a first integrated access and backhaul (IAB) node, comprising:configuring an indication of a capability to reuse measurements, associated with a mobile terminal (MT) of the first IAB node, as crosslink interference (CLI) measurements for a DU of a second IAB node; and transmitting the indication to a central unit (CU) of an IAB donor. 2. The method of claim 1 , wherein configuring the indication of the capability comprises:configuring an indication that the DU of the first IAB node and the MT of the first IAB node share a same radio frequency (RF) architecture. 3. The method of claim 2 , wherein the indication that the DU of the first IAB node and the MT of the first IAB node share the same RF architecture implicitly indicates the capability to reuse measurements, associated with the MT of the first IAB node, as CLI measurements for the DU of the second IAB node. 4. The method of claim 1 , wherein configuring the indication of the capability comprises:configuring a 1-bit indicator to explicitly indicate the capability. 5. The method of claim 1 , wherein configuring the indication of the capability comprises:configuring an indication of one or more cell identifiers associated with the DU of the first IAB for which measurements associated with the MT of the first IAB node can be reused as CLI measurements for the DU of the second IAB node. 6. The method of claim 1 , wherein configuring the indication of the capability comprises:configuring an indication of one or more beam directions supported by the MT of the first IAB node or one or more frequency bands supported by the MT of the first IAB node. 7. The method of claim 6 , wherein the indication of the one or more beam directions includes an indication of one or more synchronization signal block (SSB) indices, associated with one or more cell identifiers, that correspond to one or more beam directions. 8. The method of claim 1 , further comprising:configuring another indication of a capability to reuse measurements, of an MT of the second IAB node performed by the MT of the first IAB node, as CLI measurements for the DU of the second IAB node. 9. The method of claim 8 , further comprising:transmitting the other indication to the CU of the IAB donor. 10. A method of wireless communication performed by a distributed unit (DU) of an integrated access and backhaul (IAB) node, comprising:configuring an indication that transmissions of a mobile terminal (MT) of the IAB node can be used for crosslink interference (CLI) measurement of the DU of the IAB node; and transmitting the indication to a central unit (CU) of an IAB donor. 11. The method of claim 10 , wherein configuring the indication that transmissions of the MT of the IAB node can be used for CLI measurement of the DU of the IAB node comprises:configuring an indication that the DU of the IAB node and the MT of the IAB node share a same radio frequency (RF) architecture. 12. The method of claim 11 , wherein the indication that the DU of the IAB node and the MT of the first IAB node share the same RF architecture implicitly indicates that transmissions of the MT of the IAB node can be used for CLI measurement of the DU of the IAB node. 13. The method of claim 10 , wherein configuring the indication that transmissions of the MT of the IAB node can be used for CLI measurement of the DU of the IAB node comprises:configuring a 1-bit indicator to explicitly indicate that transmissions of the MT of the IAB node can be used for CLI measurement of the DU of the IAB node. 14. The method of claim 10 , wherein configuring the indication that transmissions of the MT of the IAB node can be used for CLI measurement of the DU of the IAB node comprises:configuring an indication of one or more cell identifiers associated with the DU of the IAB node for which transmissions of the MT of the IAB node can be used for CLI measurement of the DU of the IAB node. 15. The method of claim 10 , wherein configuring the indication that transmissions of the MT of the IAB node can be used for CLI measurement of the DU of the IAB node comprises:configuring an indication of at least one of one or more beam directions supported by the MT of the IAB node or one or more frequency bands supported by the MT of the IAB node. 16. A method of wireless communication performed by a central unit (CU) of an integrated access and backhaul (IAB) donor, comprising:receiving, from a distributed unit (DU) of a first IAB node, an indication that at least one of transmissions or measurements of a mobile terminal (MT) of the first IAB node can be used for crosslink interference (CLI) measurement of a DU of a second IAB node; and configuring at least one of the DU of the first IAB node or another node to perform one or more CLI measurements based at least in part on the indication. 17. The method of claim 16 , further comprising:configuring an MT of the second IAB node to transmit one or more uplink signals for CLI measurement based at least in part on the indication. 18. The method of claim 16 , wherein the one or more CLI measurements comprise at least one of:one or more reference signal received power (RSRP) measurements, one or more received signal strength indicator (RSSI) measurements, one or more signal to noise (SNR) measurements, or one or more signal to interference plus noise (SINR) measurements. 19. The method of claim 16 , wherein the DU of the first IAB node is associated with the CU of the IAB donor; andwherein the DU of the second IAB node is associated with a CU of another IAB donor. 20. The method of claim 19 , further comprising:coordinating, with the CU of the other IAB donor, one or more uplink signals to be transmitted by an MT of the second IAB node for the one or more CLI measurements based at least in part on the indication. 21. The method of claim 19 , further comprising:coordinating, with the CU of the other IAB donor, one or more measurement resources for one or more CLI measurements based at least in part on the indication. 22. The method of claim 19 , further comprising:coordinating, with the CU of the other IAB donor, results of the one or more CLI measurements. 23. A distributed unit (DU) of a first integrated access and backhaul (IAB) node for wireless communication, comprising:a memory; and one or more processors coupled to the memory, configured to:configure an indication of a capability to reuse measurements, associated with a mobile terminal (MT) of the first IAB node, as crosslink interference (CLI) measurements for a DU of a second IAB node; and transmit the indication to a central unit (CU) of an IAB donor. 24. The DU of claim 23 , wherein the one or more processors, to configure the indication of the capability, are configured to:configure an indication that the DU of the first IAB node and the MT of the first IAB node share a same radio frequency (RF) architecture. 25. The DU of claim 24 , wherein the indication that the DU of the first IAB node and the MT of the first IAB node share the same RF architecture implicitly indicates the capability to reuse measurements, associated with the MT of the first IAB node, as CLI measurements for the DU of the second IAB node. 26. The DU of claim 23 , wherein the one or more processors, to configure the indication of the capability, are configured to:configure a 1-bit indicator to explicitly indicate the capability. 27. The DU of claim 23 , wherein the one or more processors, to configure the indication of the capability, are configured to:configure an indication of one or more cell identifiers associated with the DU of the first IAB for which measurements associated with the MT of the first IAB node can be reused as CLI measurements for the DU of the second IAB node. 28. The DU of claim 23 , wherein the one or more processors, to configure the indication of the capability, are configured to:configure an indication of at least one of one or more beam directions supported by the MT of the first IAB node or one or more frequency bands supported by the MT of the first IAB node. 29. The DU of claim 28 , wherein the indication of the one or more beam directions includes an indication of one or more synchronization signal block (SSB) indices, associated with one or more cell identifiers, that correspond to one or more beam directions. 30. The DU of claim 23 , wherein the one or more processors are further configured to:configure another indication of a capability to reuse measurements, of an MT of the second IAB node performed by the MT of the first IAB node, as CLI measurements for the DU of the second IAB node; and transmit the other indication to the CU of the IAB donor.
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