Technology for cross-channel interference measurement in wireless communications

Abstract

Various aspects described herein relate to determining and / or scheduling resources for devices in view of cross-channel interference measured between devices. In one aspect, a first user equipment (UE) can determine a signal measurement of a signal sent by a second UE in a first channel, determine a cross-channel interference parameter of interference experienced by the first UE based at least in part on the signal measurement, and send an indication of the cross-channel interference parameter to a serving base station serving the first UE. In another aspect, the base station can determine a cross-channel interference parameter of interference experienced by the first UE in at least the first channel based on a signal sent by the second UE in a second channel, and can schedule communications for the first UE based at least in part on the cross-channel interference parameter.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to Provisional Patent Application No. 62 / 979,302, filed on February 20, 2020, entitled “TECHNIQUES FOR CROSS-CHANNEL INTERFERENCE MEASUREMENT IN WIRELESS COMMUNICATIONS,” and U.S. Patent Application No. 17 / 150,429, filed on January 15, 2021, entitled “TECHNIQUES FOR CROSS-CHANNEL INTERFERENCE MEASUREMENT IN WIRELESS COMMUNICATIONS,” which have been assigned to the assignee of this application and are hereby expressly incorporated herein by reference for all purposes. Background Art

[0003] Aspects of the present disclosure relate generally to wireless communication systems and, more particularly, to measuring cross-channel interference in wireless communications.

[0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems 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, and single-carrier frequency division multiple access (SC-FDMA) systems.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, or even global level. For example, fifth generation (5G) wireless communication technology, which may be referred to as 5G New Radio (5G NR), is envisioned to expand and support different usage scenarios and applications relative to current mobile network generations. In one aspect, 5G communication technology may include: enhanced mobile broadband that addresses human-centric use cases for accessing multimedia content, services, and data; ultra-reliable-low latency communications (URLLC) with specific latency and reliability specifications; and massive machine type communications, which may allow for very large numbers of connected devices and the transmission of relatively small amounts of non-delay sensitive information.

[0006] In wireless communication technologies such as 5G NR, devices such as user equipment (UE) can communicate with a wireless network via an access link via a base station or gNB. The devices can also communicate directly with each other via a side link. In either case, the device can use beamforming to send signals to the network or other devices so that the device can selectively apply power to antenna resources to generate beams in desired spatial directions. In addition, different devices can be configured for access link or side link communications in frequency adjacent physical resource blocks (PRBs). Summary of the invention

[0007] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an extensive overview of all contemplated aspects, and is neither intended to identify key or important elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that is presented later.

[0008] According to an example, a method for wireless communication is provided. The method includes determining, by a first user equipment (UE), a signal measurement of a signal sent by a second UE in a first channel, determining, at least in part based on the signal measurement, a sidelink cross-channel interference parameter of interference experienced by the first UE in at least a second channel within a frequency span of the first channel, and sending, by the first UE, an indication of the sidelink cross-channel interference parameter to a serving base station serving the first UE.

[0009] In another example, a method for wireless communication is provided. The method includes: determining a sidelink cross-channel interference parameter of interference experienced by a first UE in at least a first channel based on a signal sent by a second UE in a second channel, wherein the second channel is within a frequency span of the first channel; and scheduling communication of the first UE based at least in part on the sidelink cross-channel interference parameter.

[0010] In another example, a device for wireless communication is provided, the device comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to execute instructions to perform the operations of the methods described herein. In another aspect, a device for wireless communication is provided, the device comprising components for performing the operations of the methods described herein. In yet another aspect, a computer-readable medium is provided, which includes code that can be executed by one or more processors to perform the operations of the methods described herein.

[0011] In one example, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver. The one or more processors are configured to determine a signal measurement of a signal transmitted by a second device in a first channel, determine a cross-channel interference parameter of interference experienced by the apparatus in at least a second channel within a frequency span of the first channel based at least in part on the signal measurement, and send an indication of the cross-channel interference parameter to a serving base station serving the apparatus.

[0012] In another example, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver. The one or more processors are configured to determine a cross-channel interference parameter of interference experienced by a first UE in at least a first channel based on a signal sent by a second UE in a second channel, wherein the second channel is within a frequency span of the first channel, and schedule communication of the first UE based at least in part on the cross-channel interference parameter.

[0013] To achieve the foregoing and related ends, one or more aspects include the features fully described below and the features specifically pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of only some of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Various aspects of the disclosure will be described below in conjunction with the accompanying drawings, which are provided to illustrate rather than limit the various aspects of the disclosure, wherein like reference numerals represent like elements, and wherein:

[0015] Figure 1 An example of a wireless communication system according to various aspects of the present disclosure is shown;

[0016] Figure 2 is a block diagram illustrating an example of a UE according to various aspects of the present disclosure;

[0017] Figure 3 is a block diagram illustrating an example of a base station according to various aspects of the present disclosure;

[0018] Figure 4 is a flow chart illustrating an example of a method for scheduling resources for devices based on determining cross-channel interference between devices according to various aspects of the present disclosure;

[0019] Figure 5 Examples of systems in different scenarios for determining cross-channel interference of devices in adjacent resource blocks according to various aspects of the present disclosure are shown;

[0020] Figure 6 is a flow chart illustrating an example of a method for determining a cross-channel interference parameter of a device according to various aspects of the present disclosure; and

[0021] Figure 7 is a block diagram illustrating an example of a MIMO communication system including a base station and a UE according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0022] Various aspects are now described with reference to the accompanying drawings. In the following description, for the purpose of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. However, it is clear that these aspects can be practiced without these specific details.

[0023] The described features generally relate to determining cross-channel interference parameters associated with communications of a device, and / or scheduling communications of the device based on the determined cross-channel interference parameters. For example, the cross-channel interference parameters of a device can be determined based on a signal measurement of a signal sent by the device to a second device. Resources can be scheduled for at least one of the first device or the second device based on the cross-channel interference parameters to mitigate cross-channel interference between the devices.

[0024] In an example, the resources may be associated with an access link between one or more devices and a network (e.g., between one or more devices and a gNB), a direct side link between one or more devices, etc. In addition, the device may include a user equipment (UE) or a device with UE functionality, such as an integrated access and backhaul (IAB) node, etc. In addition, in time division duplex (TDD), the gNB may schedule uplink (UL) time slots for UL transmissions from the UE to the gNB and sidelink transmissions from the UE to another UE (e.g., in Mode 1 operation, the gNB schedules sidelink (SL) activity).

[0025] For example, frequency resources allocated to channels of different devices (where these channels are adjacent frequency channels, or at least within a threshold span or frequency difference range, etc.) can potentially interfere with each other. For example, when a device transmits a signal in a physical resource block (PRB) (e.g., PRB1), the transmit power is not limited to PRB1 because some transmit power leaks into adjacent PRBs. Adjacent channel leakage may be undesirable because it may interfere with the reception of any nearby receiver device in adjacent PRBs (e.g., when transmission and reception occur in the same, similar or overlapping time periods). In access link communications, this may not be a problem because the UE on the access link can send communications to the base station in an uplink (UL) time slot or symbol, or receive communications from the base station in a downlink (DL) time slot or symbol. However, in side link communications, devices can transmit or receive in a given time slot or symbol. In addition, devices in the side link may be very close, so adjacent channel leakage from a device transmitting in one PRB may be received by another nearby device receiving in an adjacent PRB with sufficiently high power, thereby causing interference.

[0026] In this regard, for example, when the base station knows that scheduling UL access link communications or side link (SL) communications in a particular resource (e.g., PRB1 in the above example) may interfere with receiving SL communications in different resources (e.g., PRB 2 in the above example, based on determining that PRB1 and PRB2 are close in frequency and / or the corresponding resources may at least partially overlap in time), the base station can avoid interference by not scheduling these two activities at the same time or scheduling them in resources (e.g., PRBs) that are farther apart in frequency. The base station can determine cross-channel interference parameters between devices or determine cross-channel interference parameters between receiving devices, and can schedule one or more of the devices accordingly based on the cross-channel interference parameters. This helps to mitigate interference in device communications, thereby improving device throughput, channel quality, spectrum resource usage, etc.

[0027] The following will refer to Figure 1-Figure 7 The described features are presented in more detail.

[0028] The terms "component", "module", "system", etc. used in this application are intended to include computer-related entities, such as but not limited to hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but not limited to, a process, a processor, an object, an executable program, an execution thread, a program, and / or a computer running on a processor. As an illustration, both an application running on a computing device and a computing device can be a component. One or more components can reside in a process and / or an execution thread, and a component can be located on a computer and / or distributed between two or more computers. In addition, these components can be executed in various computer-readable media having various data structures stored thereon. These components can communicate through local and / or remote processes (such as according to a signal having one or more data packets; such as data from a component interacting with another component in a local system, a distributed system, and / or interacting with other systems through a network such as the Internet).

[0029] The technology described herein can be used for various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms "system" and "network" are usually used interchangeably. A CDMA system can implement wireless technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions 0 and A are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Speed ​​Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM). An OFDMA system may implement a radio technology such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM TMEtc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and Advanced LTE (LTE-A) are new versions of UMTS using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the above-mentioned systems and radio technologies and other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio spectrum bands. However, the following description describes an LTE / LTE-A system for example purposes, and LTE terminology is used in most of the following descriptions, although these techniques can be used outside of LTE / LTE-A applications (e.g., can be used for fifth generation (5G) new radio (NR) networks or other next generation communication systems).

[0030] The following description provides examples, but does not limit the scope, applicability or examples set forth in the claims. Without departing from the scope of the present disclosure, the functions and arrangements of the elements discussed may be changed. Various examples may appropriately omit, replace or add various processes or components. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted or combined. In addition, the features described for some examples may be combined in other examples.

[0031] Various aspects or features will be presented in terms of systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that the various systems may include additional devices, components, modules, etc. and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Combinations of these methods may also be used.

[0032] Figure 11 is a diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) may include a base station 102, a UE 104, an evolved packet core (EPC) 160, and / or a 5G core (5GC) 190. The base station 102 may include a macro cell (a high power cellular base station) and / or a small cell (a low power cellular base station). The macro cell may include a base station. The small cell may include a femto cell, a pico cell, and a micro cell. In an example, the base station 102 may also include a gNB 180, as further described herein. In one example, in accordance with various aspects described herein, some nodes of the wireless communication system may have a modem 240 and a communication component 242 for indicating a signal measurement or cross-channel interference parameter of a signal from another UE, and in accordance with various aspects described herein, some nodes may have a modem 340 and a scheduling component 342 for scheduling communications of one or more UEs based on determined cross-channel interference parameters associated with one or more UEs. Although UE 104 is shown as having a modem 240 and a communication component 242, and base station 102 / gNB180 is shown as having a modem 340 and a scheduling component 342, this is an illustrative example, and substantially any node or type of node may include a modem 240 and a communication component 242 and / or a modem 340 and a scheduling component 342 to provide the corresponding functionality described herein.

[0033] Base stations 102 configured for 4G LTE (which may be collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with EPC 160 via a backhaul link 132 (e.g., using an S1 interface). Base stations 102 configured for 5G NR (which may be collectively referred to as Next Generation RAN (NG-RAN)) may interface with 5GC 190 via a backhaul link 184. The base stations 102 may perform, among other functions, one or more of the following functions: transmission of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and device tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate with each other via a backhaul link 134 (e.g., using an X2 interface) directly or indirectly (e.g., via EPC 160 or 5GC 190). The backhaul link 134 may be wired or wireless.

[0034] The base station 102 may communicate wirelessly with one or more UEs 104. Each of the base stations 102 may provide communication coverage for a corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of one or more macro base stations 102. A network including both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group, which may be referred to as a closed subscriber group (CSG). The communication link 120 between the base station 102 and the UE 104 may include an uplink (UL) (also referred to as a reverse link) transmission from the UE 104 to the base station 102 and / or a downlink (DL) (also referred to as a forward link) transmission from the base station 102 to the UE 104. The communication link 120 may use multiple input multiple output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link may be through one or more carriers. The base station 102 / UE 104 may use spectrum with up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) of bandwidth per carrier allocated in carrier aggregation for up to a total of Yx MHz (x component carriers) for transmission in the DL and / or UL directions. The carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric for DL ​​and UL (e.g., more or fewer carriers may be allocated for DL ​​than for UL). The component carriers may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0035] In another example, specific UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication may be through various wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on IEEE 802.11 standards, LTE, or NR.

[0036] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available prior to communication.

[0037] The small cell 102' may operate in a licensed or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 102' may employ NR and use the same 5 GHz unlicensed spectrum as the 5 GHz unlicensed spectrum used by the Wi-Fi AP 150. The small cell 102' employing NR in the unlicensed spectrum may improve coverage of the access network and / or increase capacity of the access network.

[0038] The base station 102 (whether a small cell 102' or a large cell (e.g., a macro base station)) may include an eNB, a gNodeB (gNB), or other types of base stations. Some base stations (such as gNB 180) can communicate with UE 104 in the traditional sub-6 GHz (sub 6GHz) spectrum, in millimeter wave (mmW) frequencies, and / or in near mmW frequencies. When the gNB 180 operates in mmW or near mmW frequencies, the gNB 180 may be referred to as a mmW base station. Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum. The range of EHF is 30 GHz to 300 GHz, and the wavelength is between 1 mm and 10 mm. Radio waves in the frequency band may be referred to as millimeter waves. Near mmW can extend down to a frequency of 3 GHz and have a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz and is also referred to as centimeter waves. Communications using the mmW / near mmW radio frequency bands have extremely high path loss and short distances. The mmW base station 180 can utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short distance. The base station 102 mentioned in this article can include a gNB 180.

[0039] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. In general, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which is itself connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to the IP service 176. The IP service 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, or other IP services. The BM-SC 170 may provide functions for MBMS user service provision and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS Gateway 168 may be used to distribute MBMS traffic to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and may be responsible for session management (start / stop) and collecting eMBMS-related billing information.

[0040] 5GC 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. AMF 192 may communicate with unified data management (UDM) 196. AMF 192 may be a control node that handles signaling between UE 104 and 5GC 190. In general, AMF 192 may provide QoS flow and session management. User Internet Protocol (IP) packets (e.g., from one or more UEs 104) may be transmitted through UPF 195. UPF 195 may provide UE IP address allocation for one or more UEs and other functions. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services.

[0041] A base station may also be referred to as a gNB, a Node B, an evolved Node B (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit receive point (TRP), or some other suitable term. Base station 102 provides an access point to EPC 160 or 5GC 190 for UE 104. Examples of UE 104 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a tablet computer, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, or any other similar functional device. Some of UE 104 may be referred to as IoT devices (e.g., a parking meter, a gas pump, a toaster, a vehicle, a heart monitor, etc.). IoT UEs may include machine type communication (MTC) / enhanced MTC (eMTC, also referred to as category (CAT)-M, CAT M1) UEs, NB-IoT (also referred to as CAT NB1) UEs, and other types of UEs. In the present disclosure, eMTC and NB-IoT may refer to future technologies that may be developed from or based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (enhanced further eMTC), mMTC (massive MTC), etc., and NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), etc. UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handheld device, a user agent, a mobile client, a client, or some other suitable terminology.

[0042] In an example, the communication component 242 of the UE 104 can communicate with other UEs via a side link, with a gNB via an access link, etc. In one example, the communication component 242 can determine a signal measurement of a signal received from another UE via a channel, and can report the signal measurement to the base station 102. In another example, the communication component 242 can determine a cross-channel interference parameter based on the signal measurement to report to the base station 102. In either case, the scheduling component 342 can receive the signal measurement and determine the cross-channel interference parameter for the UE 104 (or receive the cross-channel interference parameter from the UE 104) and / or can schedule resources for the UE 104 based on the cross-channel interference parameter to prevent or mitigate cross-channel interference from one or more other UEs in the communication of the UE 104.

[0043] Now turn to Figure 2-Figure 7 , various aspects are described with reference to one or more components and one or more methods that can perform the actions or operations described herein, where dashed aspects are optional. Figure 4 and Figure 6 The operations described in the description are presented in a particular order and / or performed by example components, but it should be understood that the order of actions and components performing the actions may vary depending on the implementation. In addition, it should be understood that the following actions, functions, and / or components described may be performed by a specially programmed processor, a processor executing specially programmed software, or a computer-readable medium, or by any other combination of hardware components and / or software components capable of performing the described actions or functions.

[0044] refer to Figure 2 , an example of an implementation of UE 104 may include various components, some of which have been described above and will be further described herein, including components that communicate via one or more buses 244 (such as one or more processors 212 and memory 216 and transceiver 202), which can operate in conjunction with modem 240 and / or communication component 242 to communicate with one or more UEs via a side link, communicate with a base station via an access link, measure and / or report signal measurements of signals received from one or more UEs, determine and / or report cross-channel interference parameters based on the signal measurements, etc., as further described herein.

[0045] In one aspect, the one or more processors 212 may include the modem 240 and / or may be part of the modem 240 using one or more modem processors. Thus, various functions associated with the communication component 242 may be included in the modem 240 and / or the processor 212, and in one aspect, may be performed by a single processor, while in other aspects, different functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 212 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiver processor, or a transceiver processor associated with the transceiver 202. In other aspects, some functions of the one or more processors 212 and / or the modem 240 associated with the communication component 242 may be performed by the transceiver 202.

[0046] In addition, the memory 216 can be configured to store data used herein and / or local versions of the applications 275 or one or more of the communication components 242 and / or its subcomponents executed by the at least one processor 212. The memory 216 may include any type of computer-readable medium usable by a computer or the at least one processor 212, such as random access memory (RAM), read-only memory (ROM), tape, disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, when the UE 104 operates the at least one processor 212 to execute one or more of the communication components 242 and / or its subcomponents, the memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes that define one or more of the communication components 242 and / or its subcomponents and / or data associated with the one or more computer-executable codes.

[0047] The transceiver 202 may include at least one receiver 206 and at least one transmitter 208. The receiver 206 may include hardware, firmware, and / or software code executable by a processor to receive data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiver 206 may be, for example, a radio frequency (RF) receiver. In one aspect, the receiver 206 may receive a signal transmitted by at least one base station 102. In addition, the receiver 206 may process such received signals and may also obtain measurements of the signal, such as, but not limited to, Ec / Io, signal-to-noise ratio (SNR), reference signal received power (RSRP), received signal strength indicator (RSSI), etc. The transmitter 208 may include hardware, firmware, and / or software code executable by a processor to send data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 208 may include, but are not limited to, an RF transmitter.

[0048] Additionally, in one aspect, the UE 104 may include an RF front end 288 that may communicate with the one or more antennas 265 and the transceiver 202 to receive and transmit radio transmissions, such as wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by the UE 104. The RF front end 288 may be connected to the one or more antennas 265 and may include one or more low noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.

[0049] In one aspect, the LNA 290 can amplify the received signal at a desired output level. In one aspect, each LNA 290 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a particular LNA 290 and its specified gain value based on the desired gain value for a particular application.

[0050] In addition, for example, one or more PAs 298 can be used by the RF front end 288 to amplify the signal of the RF output at a desired output power level. In one aspect, each PA 298 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a specific PA 298 and its specified gain value based on the desired gain value for a particular application.

[0051] In addition, for example, the RF front end 288 can use one or more filters 296 to filter the received signal to obtain the input RF signal. Similarly, in one aspect, for example, the corresponding filter 296 can be used to filter the output from the corresponding PA 298 to produce an output signal to be transmitted. In one aspect, each filter 296 can be connected to a specific LNA 290 and / or PA 298. In one aspect, based on the configuration specified by the transceiver 202 and / or the processor 212, the RF front end 288 can use one or more switches 292 to select the transmit or receive path using the specified filter 296, LNA 290 and / or PA 298.

[0052] Thus, the transceiver 202 may be configured to transmit and receive wireless signals via the RF front end 288 through the one or more antennas 265. In one aspect, the transceiver may be tuned to operate at a specified frequency so that the UE 104 may communicate with, for example, one or more base stations 102 or one or more cells associated with the one or more base stations 102. For example, in one aspect, the modem 240 may configure the transceiver 202 to operate at a specified frequency and power level based on the UE configuration of the UE 104 and the communication protocol used by the modem 240.

[0053] In one aspect, modem 240 can be a multi-band-multi-mode modem that can process digital data and communicate with transceiver 202, thereby using transceiver 202 to send and receive digital data. In one aspect, modem 240 can be multi-band and configured to support multiple frequency bands for a specific communication protocol. In one aspect, modem 240 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, modem 240 can control one or more components (e.g., RF front end 288, transceiver 202) of UE 104 to achieve the transmission and / or reception of signals from the network based on a specified modem configuration. In one aspect, the modem configuration can be based on the mode of the modem and the frequency band in use. In another aspect, the modem configuration can be based on UE configuration information associated with UE 104 provided by the network during cell selection and / or cell reselection.

[0054] In one aspect, the communication component 242 may optionally include a signal measurement component 252 for measuring signals received from one or more other UEs to determine signal measurements and / or report signal measurements, and / or an interference determination component 254 for determining cross-channel interference parameters based on signal measurements and / or reporting cross-channel interference parameters, etc., as further described herein.

[0055] In one aspect, processor 212 may correspond to Figure 7 Similarly, the memory 216 may correspond to one or more of the processors described in conjunction with the UE. Figure 7 The memory described in conjunction with the UE.

[0056] refer to Figure 3 , one example of an implementation of a base station 102 (e.g., base station 102 and / or gNB 180 as described above) may include various components, some of which are described above, but include components that communicate via one or more buses 344, such as one or more processors 312 and memory 316 and a transceiver 302, which may operate in conjunction with a modem 340 and a scheduling component 342 to schedule communications for one or more UEs based on cross-channel interference parameters determined for the one or more UEs, as further described herein.

[0057] As described above, the transceiver 302, receiver 306, transmitter 308, one or more processors 312, memory 316, application 375, bus 344, RF front end 388, LNA 390, switch 392, filter 396, PA 398 and one or more antennas 365 can be the same as or similar to corresponding components of UE 104, but configured or programmed for base station operation as opposed to UE operation.

[0058] In one aspect, the scheduling component 342 may optionally include an interference determination component 352 for determining cross-channel interference parameters for one or more UEs (whether by receiving cross-channel interference parameters from one or more UEs, determining cross-channel interference parameters based on signal measurements received from one or more UEs, etc.), as further described herein.

[0059] In one aspect, processor 312 may correspond to Figure 7 Similarly, the memory 316 may correspond to one or more of the processors described in conjunction with the base station. Figure 7 The memory described in conjunction with the base station.

[0060] Figure 4 A flow chart showing an example of a method 400 for scheduling communications for a UE based on cross-channel interference parameters determined for the UE or another UE. In the example, the base station 102 / gNB 180 may use Figure 1 and Figure 3 100 to perform the functions described in method 400. Although various aspects are generally described in terms of base station 102 performing these functions, gNB 180 may be base station 102 or may be otherwise similarly configured to perform the functions described herein.

[0061] In method 400, in box 402, cross-channel interference parameters of interference experienced by the first UE in at least the first channel can be determined based on the signal sent by the second UE in the second channel. In one aspect, the interference determination component 352 (e.g., in combination with the processor 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) can determine the cross-channel interference parameters of the interference experienced by the first UE in at least the first channel based on the signal sent by the second UE in the second channel. For example, the cross-channel interference parameters may include sidelink cross-channel interference parameters related to cross-channel interference, which may be caused by a signal sent by the second UE in an adjacent frequency resource or a frequency resource within at least a threshold frequency span on the sidelink communication of the first UE.

[0062] In an example, the adjacent frequency resources may include adjacent channels defined in the wireless communication technology, adjacent PRBs defined in the wireless communication technology, etc. For example, the interference determination component 352 may determine that the frequency resources are adjacent based on one or more attributes of the resource, the associated channel, the corresponding PRB, etc. For example, the interference determination component 352 may determine that the frequency resources are adjacent based on the channel number (e.g., E-UTRA absolute radio frequency channel number (EARFCN)), where the channel number is sequential or known in the adjacent frequency resources. In another example, the interference determination component 352 may determine that the frequency resources are adjacent based on the PRB index, where the PRB index is sequential or known in the adjacent frequency resources, etc. In addition, for example, the threshold frequency span may be configured by the network or specified in the radio access technology standard (and stored in the memory 316 accordingly), etc. The threshold frequency span may be in megahertz (MHz), resource blocks (e.g., PRBs), resource elements, subcarriers, channel numbers, or other measures of frequency, and / or may be equal to zero for the adjacency requirement.

[0063] For example, the communication sent by the second UE in the second channel may cause cross-link interference to the communication of the first UE in the first channel (e.g., the communication received by the first UE in the first channel), at least when the communication overlaps at least partially in time. For example, the communication may overlap in time, where the communication overlaps in one or more orthogonal frequency division multiplexing (OFDM) symbols, single carrier frequency division multiplexing (SC-FDM) symbols, one or more time slots of multiple symbols, one or more transmission time intervals (TTIs) of one or more symbols or time slots, or other time divisions defined by the radio access technology. In this regard, the interference determination component 352 may determine the cross-channel interference parameter based on the signal sent by the second UE, and accordingly may determine whether to schedule the communication of the first UE and / or the second UE based on the cross-channel interference parameter, as further described herein. For example, the cross-channel interference parameter may include an indication of cross-channel interference, a measurement of cross-channel interference, or the signal strength (e.g., in decibels) of a signal received from the second UE, etc. Figure 5 An example is shown in .

[0064] Figure 5 An example of systems 500, 502 is shown in which UEs have transmissions that potentially interfere with each other due to adjacent channel leakage. In system 500, although UE1 may use a different PRB for UL (PRB1) than UE2 and UE3 for SL communication (PRB2), because UE1 is close enough to UE2 and / or UE3 (and where PRB1 and PRB2 are adjacent or within a threshold span of frequency), sufficient energy from UE1's transmission may leak into PRB2, thereby interfering with SL communication. In this example, the interference determination component 352 can determine a measure of possible cross-channel interference based on signal measurements of signals sent by UE1 received from UE2 and / or UE3. For example, the scheduling component 342 can schedule SL resources for UE2 and / or UE3 based on a measure of possible cross-channel interference. For example, the scheduling component 342 can schedule resources to avoid cross-channel interference by avoiding scheduling UE1 UL transmission in the same time period as UE2 and / or UE3 SL communication, by scheduling UE1's UL transmission in a PRB that is not adjacent to PRB2 (on which UE2 and / or UE3 are scheduled for SL communication, etc.) or is otherwise far away from PRB2, etc.

[0065] In system 502, although UE1 may use a different PRB (PRB1) than UE3 and UE4 use for SL communication (PRB2) for SL transmission with UE2, because UE1 and / or UE2 are sufficiently close to UE3 and / or UE4 (where PRB1 and PRB2 are adjacent or within a threshold range of frequency), sufficient energy from UE1 and / or UE2 transmissions may leak into PRB2, thereby interfering with SL communication, and UE3 and / or UE4 transmissions may leak into PRB1, thereby interfering with UE1-UE2 SL transmissions. In this example, the interference determination component 352 may determine a measure of possible cross-channel interference based on signal measurements of signals sent by UE1 and / or UE2 received from UE3 and / or UE4. For example, the scheduling component 342 may schedule SL resources for UE3 and / or UE4 based on the measure of possible cross-channel interference. For example, the scheduling component 342 can schedule resources to avoid cross-channel interference by avoiding scheduling UE1 and / or UE2 SL transmissions in the same time period as UE3 and / or UE4 SL communications, by scheduling UE1 and / or UE2 SL transmissions in a PRB that is not adjacent to PRB2 (on which UE3 and / or UE4 are scheduled for SL communications, etc.) or is otherwise far away from PRB2, etc.

[0066] In the method 400, at block 404, communications of at least one of the first UE or the second UE may be scheduled based at least in part on a cross-channel interference parameter. In one aspect, the scheduling component 342 (e.g., in conjunction with the processor 312, the memory 316, the transceiver 302, etc.) may schedule communications of at least one of the first UE or the second UE based at least in part on a cross-channel interference parameter. For example, the scheduling component 342 may avoid scheduling a first resource for the first UE (wherein the first resource overlaps at least partially in time with a second resource scheduled for the second UE to send communications via an access link or a side link) based at least in part on the cross-channel interference parameter. In addition, for example, the scheduling component 342 may avoid scheduling the first resource for the first UE based on determining that the first resource is adjacent to the second resource in frequency (or is not at least a threshold frequency amount away from the second resource). In this example, the scheduling component 342 may avoid scheduling the first resource for the first UE based on determining that the first resource is in a first PRB or channel adjacent to the second PRB or channel of the second resource (or is not at least a threshold frequency amount or a threshold PRB amount away from the second PRB or channel of the second resource). In other words, in an alternative example, the scheduling component 342 can schedule the first resource for the first UE based at least in part on a cross-channel interference parameter, based on determining that the first resource is associated with a PRB or channel that is not adjacent to (or is at least a threshold frequency amount away from) a second PRB or channel associated with the second resource, regardless of whether the first resource and the second resource overlap in time.

[0067] In another example, scheduling component 342 can schedule first resources for communication of a first UE and can avoid scheduling second resources for transmission of a second UE based at least in part on a cross-channel interference parameter, wherein the first resources overlap at least partially in time with the second resources. In addition, for example, scheduling component 342 can avoid scheduling the second resource for the second UE based on determining that the second resource is associated with a frequency (e.g., a PRB or channel) that is adjacent to (or not separated from at least a threshold frequency amount by) a first frequency (e.g., a first PRB or channel) associated with the first resource.

[0068] In the method 400, optionally, at block 406, a signal measurement of a signal sent by the second UE in the second channel may be received from the first UE. In one aspect, the interference determination component 352 (e.g., in conjunction with the processor 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) may receive a signal measurement of a signal sent by the second UE in the second channel from the first UE. For example, the interference determination component 352 may receive a signal measurement from the first UE as a measurement performed in a second channel through which the second UE sends a signal, or as a measurement performed in a first channel used by the UE to communicate in the network (e.g., for sidelink communications that are potentially interfered with by the transmission of the second UE). For example, the signal measurement may be a measure of a reference signal received power (RSRP) or other measure (e.g., a reference signal received quality (RSRQ), a received signal strength indicator (RSSI), a signal-to-noise ratio (SNR), etc.) of the signal sent by the second UE. For example, the signal sent by the second UE measured by the first UE may include a CSI-RS or other reference signal.

[0069] In addition, in an example, the interference determination component 352 can request the second UE to transmit a signal (e.g., as a CSI-RS), the second UE can transmit the signal (e.g., at power P), and the interference determination component 352 can request the first UE to measure the signal (e.g., on the first channel or the second channel), such as measuring the RSRP of the signal (e.g., of the CSI-RS). In addition, the second UE can transmit the CSI-RS using a known or configured transmit beam, and the first UE can attempt to receive and measure the CSI-RS using a receive beam in the same frequency resource block. In this example, whenever the second device transmits any signal at power P using a specific transmit beam and the first device uses a specific receive beam, the first device can know that the first device can receive the signal at the measured RSRP in the frequency block.

[0070] In this example, when determining the cross-channel interference parameter at block 402, the cross-channel interference parameter can optionally be determined based at least in part on the signal measurement at block 408. In one aspect, the interference determination component 352 (e.g., in conjunction with the processor 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) can determine the cross-channel interference parameter based at least in part on the signal measurement. For example, the interference determination component 352 can determine the cross-channel interference parameter as one of an indicator that cross-channel interference exists between the first UE and the second UE (e.g., in the case where the signal measurement reaches a threshold), or as an amount of cross-channel interference (e.g., based on the signal measurement).

[0071] In one example, where the signal measurement received at block 406 is a measurement in a first channel of a signal sent in a second channel by the second UE, the measurement can be a direct measurement of cross-channel interference, and the interference determination component 352 can determine the cross-channel interference as the measurement or determine the cross-channel interference based on the measurement itself (e.g., based on a measurement value, which can be indicated in decibels or other units of signal strength or quality measurement). In another example, where the signal measurement received at block 406 is a measurement in a second channel through which the second UE sends a signal, the interference determination component 352 can apply additional parameters to the signal measurement to determine the cross-channel interference.

[0072] In an example, when determining the cross-channel interference parameter at block 408, optionally at block 410, a radiation mask of the second UE may be applied to the signal measurement. In one aspect, the interference determination component 352 (e.g., in conjunction with the processor 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) may apply the radiation mask of the second UE to the signal measurement. For example, the radiation mask may correspond to a radiation emission mask defined in a wireless communication technology such as 3GPP. For example, 3GPP may specify that a particular class of UEs must meet emission requirements, and when transmitting a number of decibel milliwatts (dBm) in an allocated RB, the UE shall not transmit more than a number of dBm in an unallocated RB. In this example, the interference determination component 352 may combine the signal measurement with the radiation emission mask to determine the maximum possible amount of cross-channel interference from the second UE, which may be used to determine the cross-channel interference parameter (e.g., as the maximum possible amount of cross-channel interference, as an indication of cross-channel interference when the maximum possible amount of cross-channel interference reaches a threshold, etc.).

[0073] In an example, when determining the cross-channel interference parameter in box 408, optionally in box 412, a second cross-channel interference parameter of the interference experienced by the first UE in at least the third channel can be determined based at least in part on signal measurement. In one aspect, the interference determination component 352 (e.g., in combination with the processor 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) can determine the second cross-channel interference parameter of the interference experienced by the first UE in at least the third channel based at least in part on signal measurement. For example, the third channel can be another channel adjacent to the second channel, but not the first channel. For example, the third channel can be located on the other side of the second channel away from the first channel in frequency, so that the channels are ordered in frequency, wherein the first channel is adjacent to the second channel or within a threshold frequency span of the second channel, and the second channel is adjacent to the third channel or within a threshold frequency span of the third channel (e.g., the first channel occupies a lower frequency than the second channel, and the second channel occupies a lower frequency than the third channel). Similarly, the interference determination component 352 can determine the second cross-channel interference parameter as at least one of a direct measurement of cross-channel interference caused by a signal from the second UE measured from the third channel, or determine the second cross-channel interference parameter based on applying a radiation template to a signal measurement measured in the second channel. In either case, the interference determination component 352 can determine the cross-channel interference based on measurements related to the first channel and / or based on a second cross-channel interference parameter determined from measurements related to the third channel.

[0074] In another example, when determining the cross-channel interference parameters in box 402, optionally in box 414, the cross-channel interference parameters can be received from the first UE. In one aspect, the interference determination component 352 (e.g., in combination with the processor 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) can receive the cross-channel interference parameters from the first UE. As further described herein, for example, the UE can determine the cross-channel interference parameters based on signal measurements performed by the first UE, and can send the cross-channel interference parameters to the base station 102 (e.g., instead of the base station 102 calculating the cross-channel interference parameters). Similarly, in this regard, the cross-channel interference parameters received from the first UE may include an indicator indicating the presence of cross-channel interference, a measure of the cross-channel interference, etc.

[0075] Figure 6 A flow chart showing an example of a method 600 for determining and transmitting cross-channel interference parameters. In an example, UE 104 may use Figure 1-Figure 2 One or more of the components described in the method 600 may be used to perform the functions described in the method 600.

[0076] In method 600, at block 602, a signal measurement of a signal transmitted by a second UE in a first channel may be determined. In one aspect, a signal measurement component 252 (e.g., in conjunction with processor 212, memory 216, transceiver 202, communication component 242, etc.) may determine a signal measurement of a signal transmitted by a second UE in a first channel. For example, the signal measurement component 252 may measure the signal transmitted by the second UE as a measurement in the first channel or as a measurement of the first channel transmission of the second UE obtained from a second channel in which UE 104 communicates (e.g., communicates with a base station via an access link or communicates with a third UE via a side link). In addition, for example, as described, the signal measurement component 252 may measure RSRP, RSRQ, RSSI, SNR, or other measurements of the signal, and / or may measure the signal based on a request for a measurement signal received from base station 102 to measure the signal for the purpose of determining cross-channel interference caused by the transmission of the second UE in the first channel at UE 104 (e.g., on the second channel).

[0077] In method 600, at block 604, cross-channel interference parameters of interference experienced in at least a second channel may be determined based at least in part on signal measurements. In one aspect, interference determination component 254 (e.g., in conjunction with processor 212, memory 216, transceiver 202, communication component 242, etc.) may determine cross-channel interference parameters of interference experienced in at least a second channel based at least in part on signal measurements. For example, the second channel may be adjacent to the first channel in frequency (e.g., in adjacent PRBs or channels) or close enough in frequency that a signal sent on the first channel may interfere with communications in the second channel (e.g., within a threshold frequency span, as described above). In one example, interference determination component 254 may determine cross-channel interference as a direct measurement of a signal sent by a second UE in a first channel and received in a second channel. In another example, interference determination component 254 may determine cross-channel interference based on a signal sent by a second UE received in a first channel. In this example, interference determination component 254 may apply one or more other parameters to signal measurements to determine cross-channel interference.

[0078] For example, when determining the cross-channel interference parameter at block 604, optionally at block 606, the radiation template of the second UE may be applied to the signal measurement. In one aspect, the interference determination component 254 (e.g., in conjunction with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc.) may apply the radiation template of the second UE to the signal measurement. For example, the radiation template may correspond to a radiation emission mask defined in a wireless communication technology (such as 3GPP). For example, 3GPP may specify that a certain class of UEs must meet emission requirements, and when transmitting an amount of Y dBm in an allocated RB, the UE shall not transmit more than an amount of X dBm in an unallocated RB. In this example, the interference determination component 254 may combine the signal measurement and the radiation emission template to determine the maximum possible amount of cross-channel interference from the second UE, and / or whether the signal transmitted by the second UE exceeds the maximum amount of cross-channel interference.

[0079] In method 600, optionally at block 608, an indication of cross-channel interference parameters may be sent to a serving base station. In one aspect, interference determination component 254 (e.g., in conjunction with processor 212, memory 216, transceiver 202, communication component 242, etc.) may send an indication of cross-channel interference parameters to a serving base station (e.g., base station 102). As described, for example, the indication may include at least one of an indication of whether cross-channel interference exists between UE 104 and a second UE, a measure of cross-channel interference as a direct measurement or as a measurement on a first channel to which a transmit template is applied, and the like. As described above, base station 102 may use the cross-channel interference parameters when scheduling resources for UE 104.

[0080] Figure 7 1 is a block diagram of a MIMO communication system 700 including a base station 102 and a UE 104. The MIMO communication system 700 may be shown with reference to Figure 1 The wireless communication access network 100 described herein may include various aspects of the wireless communication access network 100. The base station 102 may be a reference Figure 1 Examples of various aspects of base station 102 are described. Base station 102 can be equipped with antennas 734 and 735, and UE 104 can be equipped with antennas 752 and 753. In MIMO communication system 700, base station 102 can send data through multiple communication links at the same time. Each communication link can be referred to as a "layer", and the "rank" of the communication link can indicate the number of layers used for communication. For example, in a 2x2 MIMO communication system where base station 102 sends two "layers", the rank of the communication link between base station 102 and UE 104 is 2.

[0081] At the base station 102, a transmit (Tx) processor 720 may receive data from a data source. The transmit processor 720 may process data. The transmit processor 720 may also generate control symbols or reference symbols. The transmit MIMO processor 730 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, or reference symbols (if available), and may provide output symbol streams to transmit modulators / demodulators 732 and 733. Each modulator / demodulator 732 to 733 may process a corresponding output symbol stream (e.g., OFDM, etc.) to obtain an output sample stream. Each modulator / demodulator 732 to 733 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a DL signal. In an example, the DL signals from modulators / demodulators 732 and 733 may be transmitted via antennas 734 and 735, respectively.

[0082] UE 104 may be a reference Figure 1-Figure 2 Examples of various aspects of the UE 104 described herein. At the UE 104, the UE antennas 752 and 753 can receive DL signals from the base station 102, and can provide the received signals to the modulators / demodulators 754 and 755, respectively. Each modulator / demodulator 754 to 755 can condition (e.g., filter, amplify, downconvert, and digitize) the corresponding received signal to obtain input samples. Each modulator / demodulator 754 to 755 can further process the input samples (e.g., OFDM, etc.) to obtain received symbols. The MIMO detector 756 can obtain received symbols from the modulators / demodulators 754 and 755, perform MIMO detection on the received symbols (if available), and provide detected symbols. The receive (Rx) processor 758 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data of the UE 104 to the data output, and provide decoded control information to the processor 780 or the memory 782.

[0083] In some cases, processor 780 can execute stored instructions to instantiate communication component 242 (e.g., see Figure 1 and Figure 2 ).

[0084] On the uplink (UL), at the UE 104, a transmit processor 764 may receive and process data from a data source. The transmit processor 764 may also generate reference symbols for a reference signal. Symbols from the transmit processor 764 may be precoded by a transmit MIMO processor 766, if applicable, further processed by modulators / demodulators 754 and 755 (e.g., for SC-FDMA, etc.), and transmitted to the base station 102 based on communication parameters received from the base station 102. At the base station 102, the UL signals from the UE 104 may be received by antennas 734 and 735, processed by modulators / demodulators 732 and 733, detected by a MIMO detector 736 (if applicable), and further processed by a receive processor 738. The receive processor 738 may provide decoded data to a data output and to the processor 740 or memory 742.

[0085] In some cases, processor 740 may execute stored instructions to instantiate scheduling component 342 (eg, see Figure 1 and Figure 3 ).

[0086] The components of the UE 104 may be implemented individually or collectively with one or more application specific integrated circuits (ASICs) adapted to perform some or all of the available functions in hardware. Each of the modules may be a component for performing one or more functions related to the operation of the MIMO communication system 700. Similarly, the components of the base station 102 may be implemented individually or collectively with one or more ASICs adapted to perform some or all of the available functions in hardware. Each of the mentioned components may be a component for performing one or more functions related to the operation of the MIMO communication system 700.

[0087] The following aspects are merely illustrative, and aspects thereof may be combined with aspects of other embodiments or teachings described herein without limitation.

[0088] Aspect 1 is a method for wireless communication, comprising determining, by a first UE, a signal measurement of a signal sent by a second UE in a first channel, determining, at least in part based on the signal measurement, a cross-channel interference parameter of interference experienced by the first UE in at least a second channel within a frequency span of the first channel, and sending, by the first UE, an indication of the cross-channel interference parameter to a serving base station serving the first UE.

[0089] In aspect 2, the method of aspect 1 includes, wherein determining the cross-channel interference parameter is based at least in part on applying a radiated emission template specified for the second UE to the signal measurement.

[0090] In aspect 3, the method of any one of aspects 1 or 2 includes, wherein the signal measurement corresponds to measuring the signal in a second channel, and determining the cross-channel interference parameter is based on the signal measurement in the second channel.

[0091] In aspect 4, the method of any one of aspects 1 to 3 includes, wherein determining the cross-channel interference parameter is further based on determining that the first channel is adjacent to the second channel in frequency.

[0092] In aspect 5, the method of aspect 4 includes, wherein determining that the first channel is adjacent in frequency to the second channel includes determining that the first channel is associated with a first PRB that is adjacent in frequency to a second PRB associated with the second channel.

[0093] Aspect 6 is a method for wireless communication, comprising: determining a cross-channel interference parameter of interference experienced by a first UE in at least a first channel based on a signal sent by a second UE in a second channel, wherein the second channel is within a frequency span of the first channel; and scheduling communication of the first UE based at least in part on the cross-channel interference parameter.

[0094] In aspect 7, the method of aspect 6 includes receiving, from the first UE, signal measurements of signals transmitted by the second UE in the second channel, wherein determining the cross-channel interference parameter is based at least in part on the signal measurements.

[0095] In aspect 8, the method of aspect 7 includes, wherein determining the cross-channel interference parameter is based at least in part on applying a radiated emission template specified for the second UE to the signal measurement.

[0096] In aspect 9, the method of any one of aspects 7 or 8 includes, wherein the signal measurement corresponds to measuring the signal in a first channel, and determining the cross-channel interference parameter is based on the signal measurement in the first channel.

[0097] In aspect 10, the method of any one of aspects 7 to 9 includes, wherein determining the cross-channel interference parameter also includes determining a second cross-channel interference parameter of the interference experienced by the first UE in at least a third channel based at least in part on the signal measurement, the third channel also being adjacent to the second channel in frequency and not including the first channel, wherein scheduling the communication of the first UE is also based at least in part on the second cross-channel interference parameter.

[0098] In aspect 11, the method of aspect 10 includes, wherein determining the second cross-channel interference parameter is based at least in part on applying a radiated emission template specified for the second UE to the signal measurement.

[0099] In aspect 12, the method of any one of aspects 10 or 11 includes, wherein the signal measurement corresponds to measuring the signal in a third channel, and determining the second cross-channel interference parameter is based on the signal measurement in the third channel.

[0100] In aspect 13, the method of any one of aspects 6 to 12 includes, wherein determining the cross-channel interference parameter includes receiving the cross-channel interference parameter from the first UE.

[0101] In aspect 14, the method of any one of aspects 6 to 13 includes, wherein scheduling the communication of the first UE includes avoiding scheduling the communication of the first UE on resources in the time domain where the second UE is scheduled to send communication on the second channel.

[0102] In aspect 15, the method of any one of aspects 6 to 14 includes scheduling the communication of the first UE on the first channel in resources in the time domain, and avoiding scheduling the communication of the second UE on the second channel in resources in the time domain based on the cross-channel interference parameter.

[0103] In aspect 16, the method of any one of aspects 6 to 15 includes, wherein determining the cross-channel interference parameter is further based on determining that the first channel is adjacent to the second channel in frequency.

[0104] In aspect 17, the method of aspect 16 includes, wherein determining that the first channel is adjacent in frequency to the second channel includes determining that the first channel is associated with a first physical resource block (PRB), the first PRB being adjacent in frequency to a second PRB associated with the second channel.

[0105] Aspect 18 is an apparatus for wireless communication, comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to perform one or more of the methods of any one of Aspects 1 to 15.

[0106] Aspect 19 is an apparatus for wireless communication, comprising means for performing one or more of the methods of any one of aspects 1 to 15.

[0107] Aspect 20 is a computer-readable medium comprising code for wireless communication executable by one or more processors, the code comprising code for performing one or more of the methods of any one of aspects 1 to 15.

[0108] The detailed description set forth above in conjunction with the accompanying drawings describes examples, but does not represent the only examples that can be implemented or within the scope of the claims. When used in this specification, the term "example" means "used as an example, instance, or illustration," rather than "preferred" or "better than other examples." The detailed description includes specific details, the purpose of which is to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid confusing the concepts of the described examples.

[0109] Information and signals may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, computer executable codes or instructions stored on a computer-readable medium, or any combination thereof.

[0110] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed by a specially programmed device such as, but not limited to, a processor, a digital signal processor (DSP), an ASIC, a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination designed to perform the functions described herein. The specially programmed processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The specially programmed processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration.

[0111] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, these functions can be stored as one or more instructions or codes on a non-transitory computer-readable medium or transmitted thereon. Other examples and implementations are within the scope and spirit of the present disclosure and the appended claims. For example, due to the nature of software, the above functions can be implemented using software, hardware, firmware, hard wiring, or any combination thereof executed by a specially programmed processor. The features that implement the functions can also be physically located in various locations, including being distributed so that some functions are implemented at different physical locations. In addition, as applicable herein, including in the claims, the "or" used in the list of items ending with "at least one of..." represents a separate list, so that, for example, a list of "at least one of A, B, or C" means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0112] Computer-readable media include both computer storage media and communication media, including any media that helps to transfer a computer program from one place to another. Storage media can be any available media that can be accessed by a general or special computer. As an example and not limitation, computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code components in the form of instructions or data structures and can be accessed by a general or special computer or a general or special processor. In addition, any connection is properly referred to as computer-readable media. For example, if software is transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwaves, coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwaves are included in the definition of medium. Disks and optical disks used herein include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks and blue optical disks, wherein disks usually reproduce data magnetically, and optical disks reproduce data optically with lasers. The above combination is also included in the scope of computer-readable media.

[0113] The foregoing description of the present disclosure is intended to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be clear to those skilled in the art, and the common principles defined herein may be applied to other variations without departing from the spirit or scope of the present disclosure. In addition, although the elements of the described aspects and / or embodiments may be described or claimed in the singular, unless explicitly stated to be limited to the singular, the plural is also conceivable. In addition, all or part of any aspect and / or embodiment may be used together with all or part of any other aspect and / or embodiment, unless otherwise stated. Therefore, the present disclosure is not limited to the examples and designs described herein, but conforms to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication, comprising: Receiving, by a first user equipment UE, from a node serving the first UE, a request for the first UE to measure, by the first UE, a signal for cross-channel interference measurement sent by a second UE in a first channel; Determining, by the first UE, signal measurement of the signal for cross-channel interference measurement sent by the second UE in the first channel; determining, based at least in part on the signal measurements, a cross-channel interference parameter of interference experienced by the first UE in at least a second channel within a frequency span of the first channel, wherein the second channel is a sidelink channel, and wherein the second channel is different from the first channel; as well as An indication of the cross-channel interference parameter is sent by the first UE to the node serving the first UE.

2. The method according to claim 1, wherein: Determining a cross-channel interference parameter is based at least in part on applying a first radiated emission template specified for the second UE to the signal measurements.

3. The method according to claim 1, wherein: The signal measurement corresponds to measuring the signal in a second channel, and determining the cross-channel interference parameter is based on the signal measurement in the second channel.

4. The method according to claim 1, wherein: Determining the cross-channel interference parameter is also based on determining that the first channel is adjacent in frequency to the second channel.

5. The method according to claim 4, wherein: Determining that the first channel is adjacent in frequency to the second channel includes determining that the first channel is associated with a first physical resource block (PRB), the first PRB being adjacent in frequency to a second PRB associated with the second channel.

6. A method for wireless communication, comprising: Sending, from a node serving a first user equipment UE, to the first UE, a request for the first UE to measure, by the first UE, a signal for cross-channel interference measurement sent by a second UE in a second channel; determining, based on the signal for cross-channel interference measurement sent by the second UE in the second channel, a cross-channel interference parameter of interference experienced by the first UE in at least a first sidelink channel, wherein the second channel is within a frequency span of the first sidelink channel, and wherein the second channel is different from the first sidelink channel; as well as Communications for the first UE are scheduled, by the node, based at least in part on the cross-channel interference parameter.

7. The method of claim 6, further comprising receiving, by the node from the first UE, a signal measurement of a signal sent by the second UE in the second channel, wherein: Determining a cross-channel interference parameter is based at least in part on the signal measurements.

8. The method according to claim 7, wherein: Determining a cross-channel interference parameter is based at least in part on applying a first radiated emission template specified for the second UE to the signal measurements.

9. The method according to claim 7, wherein: The signal measurement corresponds to measuring the signal in a first sidelink channel, and wherein determining the cross-channel interference parameter is based on the signal measurement in the first sidelink channel.

10. The method according to claim 7, wherein: Determining the cross-channel interference parameter also includes determining a second cross-channel interference parameter of the interference experienced by the first UE in at least a third channel based at least in part on the signal measurement, the third channel also being adjacent in frequency to the second channel and not including the first side link channel, wherein scheduling the communication of the first UE is also based at least in part on the second cross-channel interference parameter.

11. The method according to claim 10, wherein: Determining a second cross-channel interference parameter is based at least in part on applying a radiated emission template specified for the second UE to the signal measurements.

12. The method according to claim 10, wherein: The signal measurement corresponds to measuring the signal in a third channel, and determining the second cross-channel interference parameter is based on the signal measurement in the third channel.

13. The method according to claim 6, wherein: Determining the cross-channel interference parameter includes receiving the cross-channel interference parameter from the first UE.

14. The method according to claim 6, wherein: Scheduling the communication of the first UE includes avoiding scheduling the communication of the first UE on resources in the time domain during which the second UE is scheduled to send communication on the second channel.

15. The method according to claim 6, further comprising: Scheduling communication of a first UE on a first sidelink channel in a first resource, the first resource being within a time period in a time domain; as well as Based on the cross-channel interference parameter, scheduling of communication of a second UE on a second channel is avoided in a second resource, the second resource being within the time period in the time domain.

16. The method according to claim 6, wherein: Determining the cross-channel interference parameter is also based on determining that the first sidelink channel is adjacent in frequency to the second channel.

17. The method according to claim 16, wherein: Determining that the first sidelink channel is adjacent in frequency to the second channel includes determining that the first sidelink channel is associated with a first physical resource block (PRB), the first PRB being adjacent in frequency to a second PRB associated with the second channel.

18. An apparatus for wireless communication, comprising: Transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to: receiving, from a node serving the apparatus, a request for the apparatus to measure, by the apparatus, a signal sent by a device in a first channel for cross-channel interference measurement; determining a signal measurement of the signal for cross-channel interference measurement sent by the device in the first channel; determining, based at least in part on the signal measurements, a cross-channel interference parameter of interference experienced by the apparatus in at least a second channel within a frequency span of the first channel, wherein the second channel is a sidelink channel, and wherein the second channel is different from the first channel; and An indication of the cross-channel interference parameter is sent to the node serving the apparatus.

19. The device according to claim 18, wherein: The one or more processors are configured to determine the cross-channel interference parameter based at least in part on applying a first radiated emission template specified for the device to the signal measurements.

20. The device according to claim 18, wherein The signal measurement corresponds to measuring the signal in a second channel, and wherein the one or more processors are configured to determine the cross-channel interference parameter based on the signal measurement in the second channel.

21. The device according to claim 18, wherein The one or more processors are configured to determine the cross-channel interference parameter further based on determining that the first channel is adjacent in frequency to the second channel.

22. The device according to claim 21, wherein The one or more processors are configured to determine that the first channel is adjacent in frequency to the second channel at least in part by determining that the first channel is associated with a first physical resource block (PRB), the first PRB being adjacent in frequency to a second PRB associated with the second channel.

23. An apparatus for wireless communication, comprising: Transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to: Sending a request to a first user equipment UE served by the apparatus for the first UE to measure a signal for cross-channel interference measurement sent by a second UE in a second channel; determining, based on the signal for cross-channel interference measurement sent by the second UE in the second channel, a cross-channel interference parameter of interference experienced by the first UE in at least a first sidelink channel, wherein the second channel is within a frequency span of the first sidelink channel and wherein the second channel is different from the first sidelink channel; and Communications for the first UE are scheduled based at least in part on the cross-channel interference parameter.

24. The device according to claim 23, wherein: The one or more processors are further configured to receive, from the first UE, signal measurements of signals transmitted by the second UE in the second channel, wherein the one or more processors are configured to determine the cross-channel interference parameter based at least in part on the signal measurements.

25. The device according to claim 24, wherein: The one or more processors are configured to determine the cross-channel interference parameter based at least in part on applying a first radiated emission template specified for a second UE to the signal measurements.

26. The device according to claim 24, wherein: The signal measurement corresponds to measuring the signal in a first sidelink channel, and wherein the one or more processors are configured to determine the cross-channel interference parameter based on the signal measurement in the first sidelink channel.

27. The device according to claim 24, wherein: The one or more processors are configured to determine the cross-channel interference parameter at least in part by determining a second cross-channel interference parameter of interference experienced by the first UE in at least a third channel based at least in part on the signal measurement, the third channel also being adjacent in frequency to the second channel and not including the first side link channel, wherein the one or more processors are configured to further schedule communications for the first UE based at least in part on the second cross-channel interference parameter.

28. The device according to claim 27, wherein The one or more processors are configured to determine the second cross-channel interference parameter based at least in part on applying a radiated emission template specified for a second UE to the signal measurements.

29. The device according to claim 23, wherein: The one or more processors are configured to determine the cross-channel interference parameter at least in part by receiving the cross-channel interference parameter from a first UE.

30. The device according to claim 23, wherein: The one or more processors are configured to schedule communications of the first UE at least in part by avoiding scheduling communications of the first UE on resources in the time domain during which the second UE was scheduled to transmit communications on the second channel.

31. An apparatus for performing wireless communication at a user equipment (UE), the apparatus comprising means for performing the method according to any one of claims 1-5.

32. An apparatus for performing wireless communications at a node, the apparatus comprising means for performing the method according to any one of claims 6-17.

33. A computer-readable storage medium having one or more computer instructions recorded thereon, which, when executed by one or more processors of a user equipment (UE), cause the one or more processors to execute the method according to any one of claims 1 to 5.

34. A computer-readable storage medium having one or more computer instructions recorded thereon, which, when executed by one or more processors of a node, cause the one or more processors to execute the method according to any one of claims 6-17.

35. A computer program product comprising one or more computer instructions, which, when executed by one or more processors of a user equipment (UE), cause the one or more processors to perform the method according to any one of claims 1-5.

36. A computer program product comprising one or more computer instructions which, when executed by one or more processors of a node, cause the one or more processors to perform the method according to any one of claims 6-17.

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