Communication collision detection and mitigation

Abstract

Various aspects generally relate to wireless communications. Some aspects more specifically relate to communication collision detection and handling. In some aspects, a first device may detect a collision between an outgoing signal transmitted by the first device to a second device and an incoming signal received at the first device from the second device. The first device may compare signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal. The first device may drop the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal. The first device (and / or the second device) may continue the communication using the other of the outgoing signal or the incoming signal.

Description

COMMUNICATION COLLISION DETECTION AND MITIGATIONCROSS-REFERENCE TO RELATED APPLICATION

[0001] This Patent Application claims priority to U.S. Patent Application No. 18 / 894,778, filed on September 24. 2024. entitled “CONIMUNICATION COLLISION DETECTION AND MITIGATION,” and assigned to the assignee hereof. The disclosure of the prior Application is considered part of and is incorporated by reference into this Pa tent Application.FIELD OF THE DISCLOSURE[0002 [ Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods associated with communication collision detection and handling.BACKGROUND

[0003] Wireless communication systems are widely deployed to provide various sendees that may include carrying voice, text, messaging, video, data, and / or other traffic. The services may include unicast, multicast, and / or broadcast services, among other examples. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and / or device transmit power, among other examples). Examples of such multiple-access RATs include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC- FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0004] The above multiple -access RATs have been adopted in various telecommunication standards to provide common protocols that enable different wireless communication devices to communicate on a municipal, national, regional, or global level. An example telecommunication standard is New Radio (NR). NR, which may also be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3 GPP). NR (and other mobile broadband evolutions beyond NR) may be designed to better support Internet of things (loT) and reduced capability device deployments, industrial connectivity, millimeter wave (mm Wave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployment, sidelink mid other device-lo- device direct communication technologies (for example, cellular vehicle-to-eveiything (CV2X) communication), massive multiple -input multiple-output (M1M0), disaggregated network0097-5722PCT 1architectures and network topology expansions, multiple-subscriber implementations, high- precision positioning, and / or radio frequency (RF) sensing, among other examples. As the demand for mobile broadband access continues to increase, further improvements in NR may be implemented, and other radio access technologies such as 6G may be introduced, to further advance mobile broadband evolution.

[0005] A collision may occur when a signaling procedure originated by a first device occurs at roughly the same time as another signaling procedure originated by a second device. For example, the collision may occur when the first device transmits the outgoing signal to the second device at the same time (or approximately the same time) the second device transmits the incoming signal to the first device. Additionally or alternatively, the collision may occur when the first device transmits the outgoing signal to the second device at the same time (or approximately the same time) the first device receives the incoming signal from the second device. The occurrence of collisions may result in busy signals or dropped communications between the first device and the second device.SUMMARY

[0006] Some aspects described herein relate to a method for wireless communication by a first device. The method may include detecting a collision between an outgoing signal from the first device to a second device and an incoming signal from tlie second device to tlie first device. The method may include dropping tlie outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal. The method may include communicating with the second device using the other of the outgoing signal or the incoming signal.

[0007] Some aspects described herein relate to a first device for wireless communication.The first device may include a processing system that includes one or more processors and one or more memories coupled with the one or more processors. The processing system may be configured to cause the first device to detect a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device. The processing system may be configured to cause the first device to drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal. The processing sy stem may be configured to cause the first device to communicate with the second device using the other of tlie outgoing signal or tlie incoming signal.

[0008] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a first device. The set of instructions, when executed by one or more processors of the first device, may cause the first device to detect a collision between an outgoing signal from the first device to a second device0097-5722PCTand an incoming signal from the second de vice to the first device. The set of instructions, when executed by one or more processors of the first device, may cause the first device to drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of tire incoming signal. The set of instructions, when executed by one or more processors of tire first device, may cause the first device to communicate with the second device using the other of the outgoing signal or the incoming signal.

[0009] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for detecting a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device. The apparatus may include means for dropping the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal. The apparatus may include means for communicating with the second device using the other of the outgoing signal or the incoming signal.

[0010] A spects of the present disclosure may generally be implemented by or as a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network node, network entity, wireless communication device, and / or processing system as substantially described with reference to, and as illustrated by, the specification and accompanying drawings.

[0011] The foregoing paragraphs of this section have broadly summarized some aspects of the present disclosure. These and additional aspects and associated advantages will be described hereinafter. The disclosed aspects may be used as a basis for modifying or designing other aspects for carrying out the same or similar purposes of the present disclosure. Such equivalent aspects do not depart from the scope of the appended claims. Characteristics of the aspects disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The appended drawings illustrate some aspects of the present disclosure, but are not limiting of the scope of the present disclosure because the description may enable other aspects. Each of the drawings is provided for purposes of illustration and description, and not as a definition of tire limits of the claims. The same or similar reference numbers in different drawings may identify the same or similar elements.0097-5722PCT 3

[0013] Figure 1 is a diagram illustrating an example of a wireless communication network in accordance with the present disclosure.

[0014] Figure 2. is a diagram illustrating an example network node in communication with an example user equipment (UE) in a wireless network in accordance with the present disclosure.

[0015] Figure 3 is a diagram illustrating an example disaggregated base station architecture in accordance with the present disclosure.

[0016] Figure 4 is a diagram illustrating an example method of communication collision detection and handling in accordance with the present disclosure.

[0017] Figure 5 is a diagram illustrating an example method of communication collision detection and mitigation in accordance with the present disclosure.

[0018] Figures 6A-6B are diagrams illustrating an example method of communication collision detection and mitigation using header information in accordance with the present disclosure.

[0019] Figure 7 is a diagram illustrating an example method of communication collision detection and mitigation without header information in accordance with the present disclosure.

[0020] Figure 8 is a flowchart illustrating an example process performed, for example, at a first device or an apparatus of a first device that supports wireless communications in accordance with the present disclosure.

[0021] Figure 9 is a diagram of an example apparatus for wireless communication that supports wireless communications in accordance with the present disclosure.DETAILED DESCRIPTION

[0022] Various aspects of the present disclosure are described hereinafter with reference to the accompanying drawings. However, aspects of the present disclosure may be embodied in many different forms and is not to be construed as limited to any specific aspect illustrated by or described with reference to an accompanying drawing or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art may appreciate that the scope of the disclosure is intended to cover any aspect of foe disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of foe disclosure. For example, an apparatus may be implemented or a method may be practiced using various combinations or quantities of the aspects set forth herein. In addition, foe scope of the disclosure is intended to cover an apparatus having, or a method that is practiced using, other structures and / or functionalities in addition to or other than the structures and / or functionalities with which various aspects of the disclosure set forth herein may be0097-5722PCT 4practiced. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim,

[0023] Several aspects of telecommunication systems will now be presented with reference to various methods, operations, apparatuses, and techniques. These methods, operations, apparatuses, and techniques will be described in tire following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as “elements”). These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

[0024] A collision may occur when a signaling procedure originated by a first device (such as a user equipment (UE)) occurs at roughly the same time as another signaling procedure originated by a second device. For example, the collision may occur when the first device transmits the outgoing signal to the second device at the same time (or approximately the same time) the second device transmits the incoming signal to the first device. Additionally or alternatively, the collision may occur when the first device transmits the outgoing signal to the second device at the same time (or approximately the same time) the first device receives the incoming signal from the second device. The outgoing signal and the incoming signal may be, for example, control plane signaling. The second device may be another UE, a fixed-line device, or a gateway, among other examples.

[0025] In some examples, the outgoing signal is a telephone call transmitted from the first device to the second device, and the incoming signal is a telephone call received at the first device from the second device. Therefore, the collision is an overlap (in time) between the outgoing telephone call and tire incoming telephone call. The collision may occur when both the first device and the second device transmit a telephone call at the same time, resulting in both the first device and the second device receiving a busy signal. Additionally or alternatively, the collision may occur when the second device receives a missed call from the first device and attempts to call the first device back at the same time that the first device is transmiting a second telephone call to the second device. This may be common in emergency situations, for example, when one of the devices gets disconnected and the attempts to call the other device back, or when an emergency server associated with the first device or the second device attempts an automatic redial. In some other examples, the collision occurs when the first device and the second device place the call (or other media signal) on hold at the same time or when the first device and the second device attempt to resume the call (or other media signal) at the same time. When tins occurs, a signaling protocol (such as a session information protocol (SIP)) may fail and the hold request or resume request may get dropped. In some other examples, the collision occurs when the first device and the second device attempt a media0097-5722PCT 5switch at the same time. For example, the collision may occur when the first device switches from a telephone call to a video call (or from a video call to a telephone call) at the same time the second device switches from the telephone call to the video call (or from tlie video call to the telephone call). In tliis example, the signaling protocol (such as a SIP) may fail and the media switching request may get dropped.

[0026] The occurrence of collisions may result in at least one of the outgoing signal and tlie incoming signal being dropped. Tliis may result in a communication failure between the first device and the second device. Additionally, the occurrence of collisions may result in wasted network resources. For example, network resources may still be consumed when the outgoing signal and the incoming signal are transmitted but the communication attempt ultimately fails. This may be problematic in scenarios involving high network traffic or during emergency situations, where efficient resource usage is critical. Further, the occurrence of collisions can negatively impact device power consumption. For example, the transmitter and receiver of the UE may remain active to transmit the outgoing signal and receive the incoming signal, leading to unnecessary battery drain when at least one of the outgoing signal and the incoming signal is dropped. Even further, collisions can negatively impact network key performance indicators (KPI) of the network, thereby indicating a degraded user experience.

[0027] Various aspects generally relate to wireless communications. Some aspects more specifically relate to communication collision detection and handling. In some aspects, a first device may detect a collision between an outgoing signal transmitted by the first device to a second device and an incoming signal received at tlie first device from the second device. The outgoing signal and the incoming signal may be telephone calls, media hold (or media resume) indications, or switches in media types (such as switches between telephone calls and video calls), among other examples. The first device may compare signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal, such as SIP information of the outgoing signal and SIP information of the incoming signal. The first device may drop the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal. For example, the first device may drop the outgoing signal or the incoming signal in accordance with one or more rules, such as in accordance with one or more characteristics of the outgoing signal and tlie incoming signal, in accordance with a call history between the first device and the second device, and / or in accordance with one or more characteristics of respective telephone numbers of die first device and the second device. The first device (and / or the second device) may continue the communication using tlie other of the outgoing signal or the incoming signal. For example, the first device and the second device may communicate using the outgoing signal in accordance with the first device (and / or the second0097-5722PCT 6device) dropping the incoming signal, or may communicate using the incoming signal in accordance with the first device (and / or the second device) dropping the outgoing signal.

[0028] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, the described techniques can be used to reduce the occurrence of busy signals and communication failures between the first device and the second device. For example, by dropping the outgoing signal or the incoming signal and by communicating using the other of the outgoing signal or the incoming signal, the described techniques can be used to reduce the occurrence of busy signals and communication failures in accordance with one or more rales. In some examples, the described techniques can be used to reduce network resource consumption. For example, by dropping the outgoing signal or the incoming signal and by communicating using the other of the outgoing signal or the incoming signal, the described techniques can be used to reduce network resource consumption by enabling the current communication session to continue and to reduce a likelihood of additional signal transmissions. In some examples, the described techniques can be used to reduce po wer consumption by the device. For example, by dropping the outgoing signal or the incoming signal and by communicating using the other of the outgoing signal or the incoming signal, the described techniques can be used to reduce UE power consumption by enabling the current communication session to continue and by reducing a likelihood of the UE transmitting additional outgoing signals and receiving additional incoming signals to restart the communication with the second device. These example advantages, among others, are described in more detail herein.

[0029] Multiple-access radio access technologies (RATs) have been adopted in various telecommunication standards to provide common protocols that enable wireless communication devices to communicate on a municipal, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3 GPP). 5G NR supports various technologies and use cases including enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLI..C), massive machine-type communication (mMTC), millimeter wave (mtnWave ) technology, beamforming, network slicing, edge computing, Internet of Things (loT) connectivity and management, and network function virtualization (NF V).

[0030] As the demand for broadband access increases and as technologies supported by wireless communication networks evolve, further technological improvements may be adopted in or implemented for 5G NR or future RATs, such as 6G, to further advance the evolution of wireless communication for a wide variety of existing and new use cases and applications. Such technological improvements may be associated with new frequency band expansion, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-0097-5722PCTterrestrial network (NTN) deployments, disaggregated network architectures and network topology expansion, device aggregation, advanced duplex communication, sidelink and other device-to-device direct communication, loT (including passive or ambient loT) networks, reduced capability (RedCap) UE functionality, industrial connectivity, multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, and / or artificial intelligence or machine learning (AIZML), among other examples. These technological improvements may support use cases such as wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestriai and / or aerial platforms, among other examples. The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies and / or support one or more of the foregoing use cases.

[0031] Figure 1 is a diagram illustrating an example of a wireless communication network 100 in accordance with the present disclosure. The wireless communication network 100 may be or may include elements of a 5G (or NR) network or a 6G network, among other examples. The wireless communication network 100 may include multiple network nodes 110, shown as a network node (NN) 110a, a network node 110b, a network node 110c, and a network node 1 lOd. The network nodes 110 may support communications with multiple UEs 120, shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e.

[0032] The network nodes 110 and tlie UEs 120 of tlie wireless communication network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, carriers, and / or channels. For example, devices of the wireless communication network 100 may communicate using one or more operating bands. In some aspects, multiple wireless communication networks 100 may be deployed in a given geographic area. Each wireless communication network 100 may support a particular RAT (which may also be referred to as an air interface) and may operate on one or more carrier frequencies in one or more frequency ranges. Examples of RATs include a 4G RAT, a 5G / NR RAT. and / or a 6G R AT. among other examples. In some examples, when multiple RATs are deployed in a given geographic area, each RAT in the geographic area may operate on different frequencies to avoid interference with one another.

[0033] Various operating bands have been defined as frequency range designations FR1 (410 MHz through 7.125 GHz). FR2 (24.25 GHz through 52.6 GHz), FR3 (7.125 GHz through 24.25 GHz), FR4a or FR4-1 (52.6 GHz through 71 GHz), FR4 (52.6 GHz through 114.25 GHz), and FR5 (114.25 GHz through 300 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in some documents and articles.0097-5722PCT 8Similarly, FR2 is often referred to (interchangeably ) as a “millimeter wave” band in some documents and articles, despite being different than the extremely high frequency (EHF) band (30 GHz through 300 GHz), which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. The frequencies between FR1 and FR2 are often referred to as mid-band frequencies, which include FR3. Frequency bands falling within FR3 may inherit FR1 characteristics orFR2 characteristics, and thus may effectively extend features of FR1 or FR2 into mid-band frequencies. Thus, “sub-6 GHz,” if used herein, may broadly refer to frequencies that are less than 6 GHz, that are within FR1, and / or that are included in mid-band frequencies. Similarly, the term “millimeter wave,” if used herein, may broadly refer to frequencies that are included in mid-band frequencies, tlrat are within FR2, FR4, FR4-a or FR4- 1 , or FR5, and / or tlrat are within the EHF band. Higher frequency bands may extend 5G NR operation, 6G operation, and / or other RATs beyond 52.6 GHz. For example, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some examples, the wireless communication network 100 may implement dynamic spectrum sharing (DSS), in which multiple RATs (for example, 4G / Long Term Evolution (LTE) and 5G / NR) are implemented with dynamic bandwidth allocation (for example, in accordance with user demand) in a single frequency band. It is contemplated that the frequencies included in these operating bands (for example, FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and techniques described herein may be applicable to those modified frequency ranges.[8034 i A network node 110 may include one or more devices, components, or systems that enable communication between a UE 120 and one or more devices, components, or systems of the wireless communication network 100. A network node 110 may be, may include, or may also be referred to as an NR network node, a 5G network node, a 6G network node, a Node B, an eNB, a gNB, an access point (AP), a transmission reception point (TRP), a mobility element, a core, a network entity, a network element, a network equipment, and / or another type of device, component, or system included in a radio access network (RAN).

[0035] 3k network node 110 may be implemented as a single physical node (for example, a single physical structure) or may be implemented as two or more physical nodes (for example, two or more distinct physical structures). For example, a network node 110 may be a device or system tlrat implements part of a radio protocol stack, a device or system that implements a full radio protocol stack (such as a full gNB protocol stack), or a collection of devices or systems that collectively implement the full radio protocol stack. For example, and as shown, a network node 110 may be an aggregated network node (having an aggregated architecture), meaning that the network node 110 may implement a full radio protocol stack that is physically and logically integrated within a single node (for example, a single physical structure) in the wireless communication network 100. For example, an aggregated network node 110 may consist of a single standalone base station or a single TRP that uses a full radio protocol stack to enable or0097-5722PCT 9facilitate communication between a UE 120 and a core network of the w ireless communication network 100.

[0036] Alternatively, and as also shown, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station), meaning that the network node 110 may implement a radio protocol stack that is physically distributed and / or logically distributed among two or more nodes in the same geographic location or in different geographic locations. For example, a disaggregated network node may have a disaggregated architecture. In some deployments, disaggregated network nodes 110 may be used in an integrated access and backhaul (TAB) network, in an open radio access network (O-RAN) (such as a network configuration in compliance w ith the O-RAN Alliance), or in a virtualized radio access network (vRAN), also know n as a cloud radio access network (C-RAN), to facilitate scaling by separating base station functionality into multiple units that can be individual!}' deployed.

[0037] The network nodes 110 of the wireless communication network 100 may include one or more central units (CUs), one or more distributed units (DUs), and / or one or more radio units (RUs). A CU may host one or more higher layer control functions, such as radio resource control (R.RC) functions, packet data convergence protocol (PDCP) functions, and / or service data adaptation protocol (SDAP) functions, among other examples. A DU may host one or more of a radio link control (REC) layer, a medium access control (MAC) layer, and / or one or more higher physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP. In some examples, a DU also may host one or more lower PHY layer functions, such as a fast Fourier transform (FFT), an inverse FFT (iFFT). beamforming, physical random access channel (PRACH) extraction and filtering, and / or scheduling of resources for one or more UEs 120, among other examples. An RU may host RF processing functions or lower PHY layer functions, such as an FFT, an iFFT, beamforming, or PRACH extraction and filtering, among other examples, according to a functional split, such as a lower layer functional split. In such an architecture, each RU can be operated to handle over the air (OTA) communication with one or more UEs 120.

[0038] In some aspects, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. Additionally or alternatively, a network node 110 may include one or more Near-Real Time (Near-RT) RAN Intelligent Controllers (RICs) and / or one or more Nou-Real Time (Non-RT) RICs. In some examples, a CU, a DU, and / or an RU may be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit ( VRU), among other examples. A virtual unit may be implemented as a virtual network function, such as associated with a cloud deployment.

[0039] Some network nodes 110 (for example, a base station, an RU, or a TRP) may provide communication coverage for a particular geographic area. In the 3 GPP, the term “cell” can refer0097-5722PCT 10to a coverage area of a network node 110 or to a network node 110 itself, depending on the context in which the term is used. A network node 110 may support one or multiple (for example, three) cells. In some examples, a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow' unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by UEs 120 having association with the femto cell (for example, UEs 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or an in-home network node. In some examples, a cell may not necessarily be stationary. For example, the geographic area of the cell may move according to the location of an associated mobile network node 110 (for example, a train, a satellite base station, an unmanned aerial vehicle, or an NTN network node).

[0040] The wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, aggregated network nodes, and / or disaggregated network nodes, among other examples. In the example shown in Figure 1 , the network node 110a may be a macro network node for a macro cell 130a, tire network node 110b may be a pico network node for a pico cell 130b, and the network node 110c may be a femto network node for a femto cell 130c. Various different types of network nodes 110 ray generally transmit at different power levels, serve different coverage areas, and / or have different impacts on interference in the wireless communication network 100 than other types of network nodes 1 10. For example, macro network nodes may have a high transmit power level (for example, 5 to 40 watts), whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (for example, 0. 1 to 2 watts),

[0041] In some examples, a network node 1 10 may be, may include, or may operate as an RU, a TRP, or a base station that communicates with one or more UEs 120 via a radio access link (which may be referred to as a “Uu” link). The radio access link may include a downlink and an uplink. “Downlink” (or “DL”) refers to a communication direction from a network node 110 to a UE 120, and “uplink” (or “UL”) refers to a communication direction from a UE 120 to a network node 110. Downlink channels may include one or more control channels and one or more data channels. A downlink control channel may be used to transmit downlink control information (DC1) (for example, scheduling information, reference signals, and / or configuration information) from a network node i 10 to a UE 120. A downlink data channel may be used to0097-5722PCT 11transmit downlink data (for example, user data associated with a UE 120) from a network node 110 to a UE 120. Downlink control channels may include one or more physical downlink control channels (PDCCHs). and downlink data channels may include one or more physical downlink shared channels (PDSCHs). Uplink channels may similarly include one or more control channels and one or more data channels. An uplink control channel may be used to transmit uplink control information (UCI) (for example, reference signals and / or feedback corresponding to one or more downlink transmissions) from a UE 120 to a network node 110. An uplink data channel may be used to transmit uplink data (for example, user data associated with a UE 120) from a UE i 20 to a network node 110. Uplink control channels may include one or more physical uplink control channels (PUCCHs), and uplink data channels may include one or more physical uplink shared channels (PUSCHs). The downlink and the uplink may each include a set of resources on which the network node 110 and the UE 120 may communicate.

[0042] Downlink and uplink resources may include time domain resources (frames, subframes, slots, and / or symbols), frequency domain resources (frequency bands, component carriers, subcarriers, resource blocks, and / or resource elements), and / or spatial domain resources (particular transmit directions and / or beam parameters). Frequency domain resources of some bands may be subdivided into bandwidth parts (B WPs). A BWP may be a continuous block of frequency domain resources (for example, a continuous block of resource blocks) that are allocated for one or more UEs 120. A UE 120 may be configured with both an uplink BWP and a downlink BWP (where tire uplink BWP and the downlink BWP may be the same BWP or different B WPs). A BWP may be dynamically configured (for example, by a network node 110 transmitting a DCI configuration to the one or more UEs 120) and / or reconfigured, which means that a BWP can be adjusted in real-time (or near-real-time) in accordance with changing network conditions in the wireless communication network 100 and / or in accordance with the specific requirements of the one or more UEs 120. This enables more efficient use of the available frequency domain resources in the wireless communication network 100 because fewer frequency domain resources may be allocated to a BWP for a UE 120 (which may reduce the quantity of frequency domain resources that a UE 120 is required to monitor), leaving more frequency domain resources to be spread across multiple UEs 120. Thus, BWPs may also assist in the implementation of lower-capability UEs 120 by facilitating die configuration of smaller bandwidths for communication by such UEs 120.[0043 [ As described above, in some aspects, the wireless communication network 100 may be, may include, or may be included in, an TAB network. In an 1AB network, at least one network node 110 is an anchor network node that communicates with a core network. An anchor network node 110 may also be referred to as an TAB donor (or ‘TAB-donor’’). The anchor network node 110 may connect to the core network via a wired backhaul link. For0097-5722PCT 12example, an Ng interface of the anchor network node 110 may terminate at the core network. Additionally or alternatively, an anchor network node 110 may connect to one or more devices of the core network that provide a core access and mobility management function (AMF). An IAB network also generally includes multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply as IAB nodes (or “LAB-nodes”). Each nonanchor network node 110 may communicate directly with the anchor network node 110 via a wireless backhaul link to access the core network, or may communicate indirectly with the anchor network node 110 via one or more other non-anchor network nodes 110 and associated wireless backhaul links that form a backhaul path to the core network. Some anchor network node 110 or other non-anchor network node 110 may also communicate direct!}' w'ith one or more UEs 120 via wireless access links that cany access traffic. In some examples, network resources for wireless communication (such as time resources, frequency resources, and / or spatial resources) may be shared between access links and backhaul links.

[0044] In some examples, any network node 110 that relays communications may be referred to as a relay network node, a relay station, or simply as a relay , A relay may receive a transmission of a communication from an upstream station (for example, another network node 110 or a UE 120) and transmit the communication to a downstream station (for example, a UE 120 or another network node 110). In this example, the wireless communication network 100 may include or be referred to as a “multi-hop network.” In the example shown in Figure 1, the network node 1 lOd (for example, a relay network node) may communicate with the network node 110a (for example, a macro network node) and the UE 120d in order to facilitate communication between the network node 110a and the UE 120d. Additionally or alternatively , a UE 120 may be or may operate as a relay station that can relay transmissions to or from other UEs 120. A UE 120 that relays communications may be referred to as a UE relay or a relay UE, among other examples.

[0045] The UEs 120 may be physically dispersed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. A UE 120 may be, may include, or may be included in an access terminal, another terminal, a mobile station, or a subscriber unit, A UE 120 may be, include, or be coupled with a cellular phone (for example, a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (for example, a smart watch, smart clothing, smart glasses, a smart wristband, and / or smart jewelry', such as a smart ring or a smart bracelet), an entertainment device (for example, a music device, a video device, and / or a satellite radio), an XR device, a vehicular component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning0097-5722PCT 13System device or another type of positioning device), a UE function of a network node, and / or any other suitable device or function that may communicate via a wireless medium.

[0046] A UE 120 and / or a network node 110 may include one or more chips, system-on- chips (SoCs), chipsets, packages, or devices that individually or collectively constitute or comprise a processing system. The processing system includes processor (or “processing”) circuitry in the form of one or multiple processors, microprocessors, processing units (such as central processing units (CPUs), graphics processing units (GPUs), neural processing units (NPU s) and / or digital signal processors (DSPs)), processing blocks, application-specific integrated circuits (ASIC), programmable logic devices (PLDs) (such as field programmable gate arrays (FPGAs)), or other discrete gate or transistor logic or circuitry’ (all of which may’ be generally referred to herein individually as “processors'" or collectively’ as “the processor” or “the processor circuitry”). One or more of the processors may be individually or collectively configurable or configured to perform various functions or operations described herein. A group of processors collectively configurable or configured to perform a set of functions may include a first processor config-arable or configured to perform a first function of the set and a second processor configurable or configured to perform a second function of the set, or may include the group of processors all being configured or configurable to perform the set of functions.

[0047] The processing system may further include memory circuitry' in the form of one or more memory' devices, memory' blocks, memory elements or other discrete gate or transistor logic or circuitry, each of which may include tangible storage media such as random-access memory’ (RAM) or read-only memory (ROM), or combinations thereof (all of which may be generally referred to herein individually as “memories” or collectively as “the memory ” or “the memory’ circuitry’”). One or more of the memories may be coupled (for example, operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) with one or more of the processors and may individually or collectively store processor-executable code (such as software) that, when executed by one or more of the processors, may configure one or more of the processors to perform various functions or operations described herein. Additionally or alternatively, in some examples, one or more of the processors may be preconfigured to perform various functions or operations described herein without requiring configuration by software. The processing system may further include or be coupled with one or more modems (such as a Wi-Fi (for example. Institute of Electrical and Electronics Engineers (IEEE) compliant) modem or a cellular (for example, 3GPP 4G LIE, 5G, or 6G compliant) modem). In some implementations, one or more processors of the processing system include or implement one or more of the modems. The processing system may further include or be coupled with multiple radios (collectively “the radio”), multiple RF chains, or multiple transceivers, each of which may in turn be coupled with one or more of multiple antennas. In0097-5722PCT 14some implementations, one or more processors of the processing system include or implement one or more of the radios, RF chains or transceivers. The UE 120 may include or may be included in a housing that houses components associated with the UE 120 including the processing system.[ 00481 Some UEs 120 may be considered machine-type communication (MTC) UEs, evolved or enhanced machine-type communication (eMTC), UEs, further enhanced eMTC (feMTC) UEs, or enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be simply referred to as “MTC UEs”. An MTC UE may be, may include, or may be included in or coupled with a robot, an uncrewed aerial vehicle, a remote device, a sensor, a meter, a monitor, and / or a location tag. Some UEs 120 may be considered loT devices and / or may be implemented as NB-IoT (narrowband ToT) devices. An ToT UE or NB-IoT device may be, may include, or may be included in or coupled with an industrial machine, an appliance, a refrigerator, a doorbell camera device, a home automation device, and / or a light fixture, among other examples. Some UEs 120 may be considered Customer Premises Equipment, which may include telecommunications devices that are installed at a customer location (such as a home or office) to enable access to a sendee provider's network (such as included in or in communication with the wireless communication network 100).[ 00491 Some UEs 120 may be classified according to different categories in association with different complexities and / or different capabilities. UEs 120 in a first category may facilitate massive loT in the wireless communication network 100, and may offer low complexity and / or cost relative to UEs 120 in a second category. UEs 120 in a second category may include mission-critical loT devices, legacy UEs, baseline UEs, high-tier UEs, advanced UEs, fullcapability UEs, and / or premium UEs tliat are capable of URLLC, eMBB, and / or precise positioning in the wireless communication network 100, among other examples. A third category' of UEs 120 may have mid-tier complexity and / or capability (for example, a capability between UEs 120 of the first category and UEs 120 of the second capability). A UE 120 of the third category' may be referred to as a reduced capacity UE (“RedCap UE”), a mid-tier UE, an NR-Light UE, and / or an NR -Lite UE. among other examples. RedCap UEs may bridge a gap between the capability and complexity of NB-IoT devices and / or eMTC UEs, and mission- critical loT devices and / or premium UEs. RedCap UEs may include, for example, wearable devices, loT devices, industrial sensors, and / or cameras that are associated with a limited bandwidth, power capacity, and / or transmission range, among other examples. RedCap UEs may support healthcare environments, building automation, electrical distribution, process automation, transport and logistics, and / or smart city deployments, among other examples.|0050] In some examples, two or more UEs 120 (for example, shown as UE 120a and UE 120e) may communicate directly with one another using sidelink communications (for example, without communicating by way of a network node 110 as an intermediary). As an example, the0097-5722PCT 15UE 120a may directly transmit data, control information, or other signaling as a sidelink communication to the UE 120e. This is in contrast to, for example, the UE 120a first transmitting data in an UL communication to a network node 110, which then transmits the data to the UE 120e in a DL communication. In various examples, the UEs 120 may transmit and receive sidelink communications using peer-to-peer (P2P) communication protocols, device-to- device (D2D) communication protocols, vehicle-to-eveiything (V2X) communication protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, and / or vehicle-to-pedestrian ( V2P) protocols), and / or mesh network communication protocols. In some deployments and configurations, a network node 110 may schedule and / or allocate resources for sidelink communications between UEs 120 in the wireless communication network 100. In some other deployments and configurations, a UE 120 (instead of a network node 110) may perform, or collaborate or negotiate with one or more other UEs to perform, scheduling operations, resource selection operations, and / or other operations for sidelink communications.

[0051] In various examples, some of the network nodes 110 and the UEs 120 of the wireless communication network 100 may be configured for full-duplex operation in addition to halfduplex operation. A network node 110 or a UE 120 operating in a half-duplex mode may perform only one of transmission or reception during particular time resources, such as during particular slots, symbols, or other time periods. Half-duplex operation may involve timedivision duplexing (TDD), in which DL transmissions of the network node 110 and UL transmissions of the UE 120 do not occur in the same time resources (that is, the transmissions do not overlap in time). In contrast, a network node 110 or a UE 120 operating in a full-duplex mode can transmit and receive communications concurrently (for example, in the same time resources). By operating in a full-duplex mode, network nodes 110 and / or UEs 120 may generally increase the capacity of the network and the radio access link. In some examples, frillduplex operation may involve frequency -division duplexing (FDD), in which DL transmissions of the network node 110 are performed in a first frequency band or on a first component carrier and transmissions of the UE 12.0 are performed in a second frequency band or on a second component carrier different than the first frequency band or the first component carrier, respectively. In some examples, full-duplex operation may be enabled for a UE 120 but not for a network node 110. For example, a UE 12.0 may simultaneously transmit an UL transmission to a first network node 110 and receive a DL transmission from a second network node 110 in the same time resources. In some other examples, full-duplex operation may be enabled for a network node 110 but not for a UE 120. For example, a network node 110 may simultaneously transmit a DL transmission to a first UE 120 and receive an UL transmission from a second UE 120 in the same time resources. In some other examples, full-duplex operation may be enabled for both a network node HO and a UE 120.0097-5722PCT 16

[0052] In some examples, the UEs 120 and the network nodes 110 may perform MIMO communication. “MIMO" generally refers to transmitting or receiving multiple signals (such as multiple layers or multiple data streams) simultaneously over the same time and frequency resources. MIMO techniques generally exploit multipath propagation. MIMO may be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO may support simultaneous transmission to multiple receivers, referred to as multi-user MIMO (MU -MIMO). Some RATs may employ advanced MIMO techniques, such as mTRP operation (including redundant transmission or reception on multiple TRPs), reciprocity in the time domain or the frequency domain, single-frequency -network (SFN) transmission, or non-coherent joint transmission (NC-JT).

[0053] In some aspects, a first device (such as the UE 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may detect a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device; drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal; and communicate with the second device using the other of the outgoing signal or the incoming signal. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0054] Figure 2 is a diagram illustrating an example network node 110 in communication with an example UE 120 in a wireless network in accordance with tire present disclosure.

[0055] As shown in Figure 2, tire network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a through 232t, where t > 1), a set of antennas 234 (shown as 234a through 234v, where v > 1), a MIMO detector 236, a receive processor 238, a data sink 239, a controller / processor 240, a memory 242, a communication unit 244, a scheduler 246, and / or a communication manager 150, among other examples. In some configurations, one or a combination of the antenna(s) 234, the modem(s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 214, and / or the TX MIMO processor 216 may be included in a transceiver of the network node 110, The transceiver may be under control of and used by one or more processors, such as the controller / processor 240, and in some aspects in conjunction with processor-readable code stored in the memory 242, to perform aspects of the methods, processes, and / or operations described herein. In some aspects, the network node 110 may include one or more interfaces, communication components, and / or oilier components that facilitate communication with the UE 120 or another network node.0097-5722PCT 17

[0056] The terms “processor,” “controller,” or “controller, ''processor” may refer to one or more controllers and / or one or more processors. For example, reference to “a / the processor,” “a / the controller / processor,” or the like (in the singular) should be understood to refer to any one or more of the processors described in connection with Figure 2, such as a single processor or a combination of multiple different processors. Reference to “one or more processors” should be understood to refer to any one or more of the processors described in connection with Figure 2. For example, one or more processors of the network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and / or controller / processor 240. Similarly, one or more processors of tire UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and / or controller / processor 280.

[0057] In some aspects, a single processor may perform all of the operations described as being performed by the one or more processors. In some aspects, a first set of (one or more) processors of the one or more processors may perform a first operation described as being performed by the one or more processors, and a second set of (one or more) processors of the one or more processors may perform a second operation described as being performed by the one or more processors. The first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. Reference to “one or more memories” should be understood to refer to any one or more memories of a corresponding device, such as the memory described in connection with Figure 2. For example, operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or different subsets of the one or more memories.

[0058] For downlink communication from the network node 110 to the UE 120, the transmit processor 214 may receive data (“downlink data”) intended for the UE 120 (or a set of UEs that includes the UE 120) from the data source 212 (such as a data pipeline or a data queue). In some examples, the transmit processor 214 may' select one or more modulation and coding schemes (MCSs) for the UE 120 in accordance with one or more channel quality’ indicators (CQls) received from the UE 120. The network node 110 may process the data (for example, including encoding the data) for transmission to the UE 120 on a downlink in accordance with the MCS(s) selected for the UE 120 to generate data sy mbols. The transmit processor 214 may process system information (for example, semi-static resource partitioning information (SRPI)) and / or control information (for example, CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and / or control symbols. The transmit processor 214 may generate reference sy mbols for reference signals (for example, a cell-specific reference signal (CRS), a demodulation reference signal (DMRS), or a channel state information (CSI) reference signal (CSI-RS)) and / or synchronization signals (for example, a primary’ synchronization signal (PSS) or a secondary’ synchronization signals (SSS)).0097-5722PCT 18

[0059] The TX MIMO processor 216 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol streams (for example. T output symbol streams) to the set of modems 232. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 232. Each modem 232 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for orthogonal frequency division multiplexing (OFDM)) to obtain an output sample stream. Each modem 232 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a time domain downlink signal. The modems 232a through 232t may together transmit a set of downlink signals (for example, T downlink signals) via the corresponding set of antennas 234.

[0060] A downlink signal may include a DCI communication, a MAC control element (MAC-CE) communication, an RRC communication, a downlink reference signal, or another type of downlink communication. Downlink signals may be transmitted on a PDCCH, a PDSCH, and / or on another downlink channel. A downlink signal may carry one or more transport blocks (TBs) of data. A TB may be a unit of data that is transmitted over an air interface in the wireless communication network 100. A data stream (for example, from the data source 212) may be encoded into multiple TBs for transmission over the air interface. The quantity of TBs used to carry the data associated with a particular data stream may be associated with a TB size common to the multiple TBs. The TB size may be in accordance with or otherwise associated with radio channel conditions of the air interface, the MCS used for encoding the data, the downlink resources allocated for transmitting the data, and / or another parameter. In general, the larger the TB size, the greater the amount of data that can be transmitted in a single transmission, which reduces signaling overhead. However, larger TB sizes may be more prone to transmission and / or reception errors than smaller TB sizes, but such errors may be mitigated by more robust error correction techniques.

[0061] For uplink communication from the UE 120 to the network node 110, uplink signals from the UE 120 may be received by an antenna 234, may be processed by a modem 232 (for example, a demodulator component, shown as DEMOD, of a modem 232 ), may be detected by the MIMO detector 2.36 (for example, a receive (Rx) MIMO processor) if applicable, and / or may be further processed by the receive processor 238 to obtain decoded data and / or control information. The receive processor 238 may provide the decoded data to a data sink 239 (which may be a data pipeline, a data queue, and / or another type of data sink) and provide the decoded control information to a processor, such as the controller / processor 240.[00621 The network node 110 may use the scheduler 246 to schedule one or more UEs 120 for downlink or uplink communications. In some aspects, the scheduler 246 may use DCI to0097-5722PCT 19dynamically schedule DL transmissions to the UE 120 and / or UL transmissions from the UE 120, In some examples, the scheduler 246 may allocate recurring time domain resources and / or frequency domain resources that the UE 120 may use to transmit and / or receive communications using an RRC configuration (for example, a semi-static configuration), for example, to perform semi-persistent scheduling (SPS) or to configure a configured grant (CG) for tlie UE 120.[00631 One or more of tlie transmit processor 214, the TX MIMO processor 216, tlie modem 232, the antenna 234, the MIMO detector 236, tlie receive processor 238, and / or the controller / processor 240 may be included in an RF chain of the network node 110. An RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs), and / or other devices that convert between an analog signal (such as for transmission or reception via an air interface) and a digital signal (such as for processing by one or more processors of the network node 110). In some aspects, the RF chain may be or may be included in a transceiver of the network node 110.

[0064] In some examples, the network node 110 may use the communication unit 244 to communicate with a core network and / or with other network nodes. The communication unit 244 may support wired and / or wireless communication protocols and / or connections, such as Ethernet, optical fiber, common public radio interface (CPRI). and / or a wired or wireless backhaul, among other examples. The network node 110 may use the conununication unit 244 to transmit and / or receive data associated with the UE 120 or to perform network control signaling, among other examples. The communication unit 244 may include a transceiver and / or an interface, such as a network interface.

[0065] The UE 120 may include a set of antennas 252 (shown as antennas 252a through 252r, where r > 1), a set of modems 254 (shown as modems 254a through 254u, where u > 1), a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, a memory 282, and / or a communication manager 140, among other examples. One or more of the components of the UE 120 may be included in a bousing 284. In some aspects, one or a combination of the antenna(s) 252, the modem(s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266 may be included in a transceiver that is included in the UE 120. The transceiver may be under control of and used by one or more processors, such as the controller / processor 280, and in some aspects in conjunction with processor-readable code stored in the memory 282, to perform aspects of the methods, processes, or operations described herein. In some aspects, the UE 120 may include another interface, another communication component, and / or another component that facilitates communication with the network node 110 and / or another UE 120.0097-5722PCT 20

[0066] For downlink communication from the network node 110 to the UE 120, the set of antennas 252 may receive the downlink communications or signals from the network node 110 and may provide a set of received downlink signals (for example, R received signals) to the set of modems 254. For example, each received signal may be provided to a respective demodulator component (shown as DEMOD) of a modem 254. Each modem 254 may use the respective demodulator component to condition (for example, filter, amplify, downconvert, and / or digitize) a received signal to obtain input samples. Each modem 254 may use the respective demodulator component to further demodulate or process the input samples (for example, for OFDM) to obtain received symbols. The MIMO detector 256 may obtain received symbols from the set of modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. The receive processor 258 may process (for example, decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260 (which may include a data pipeline, a data queue, and / or an application executed on the UE 120), and may provide decoded control information and system information to the controller / processor 280.

[0067] For uplink communication from the UE 120 to the network node 110, the transmit processor 264 may receive and process data (“uplink data”) from a data source 262 (such as a data pipeline, a data queue, and / or an application executed on the UE 120) and control information from the controller / processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and / or other types of control information. In some aspects, the receive processor 258 and / or the controller / processor 280 may determine, for a received signal (such as received from the network node 110 or another UE), one or more parameters relating to transmission of the uplink communication. The one or more parameters may include a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, a CQ1 parameter, or a transmit power control (TPC) parameter, among other examples. The control information may include an indication of the RSRP parameter, the RSSI parameter, the RSRQ parameter, the CQI parameter, the TPC parameter, and / or another parameter. The control information may facilitate parameter selection and / or scheduling for the UE 120 by the network node 110.

[0068] The transmit processor 264 may generate reference symbols for one or more reference signals, such as an uplink DMRS, an uplink sounding reference signal (SRS), and / or another type of reference signal. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, and further processed by the set of modems 254 (for example, for DFT-s-OFDM or CP -OFDM). The TX MIMO processor 266 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol0097-5722PCT 21streams (for example, U output symbol streams) to the set of modems 254. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 254. Each modem 254 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for OFDM) to obtain an output sample stream. Each modem 254 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.

[0069] The modems 254a through 254u may transmit a set of uplink signals (for example, R uplink signals or 17 uplink symbols) via the corresponding set of antennas 252. An uplink signal may include a UCI communication, a MAC-CE communication, an RRC communication, or another type of uplink communication. Uplink signals may be transmitted on a PUSCH, a PUCCH, and / or another type of uplink channel. An uplink signal may carry one or more TBs of data. Sidelink data and control transmissions (that is, transmissions directly between two or more UEs 120) may generally use similar techniques as were described for uplink data and control transmission, and may use sidelink-specific channels such as a physical sidelink shared channel (PSSCH), a physical sidelink control channel (PSCCH), and / or a physical sidelink feedback channel (PSFCH).

[0070] One or more antennas of the set of antennas 252 or the set of antennas 234 may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings), a se t of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of Figure 2, As used herein, “antenna” can refer to one or more antennas, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays. “Antenna panel” can refer to a group of antennas (such as antenna elements) arranged in an array or panel, which may facilitate beamfonning by manipulating parameters of the group of antennas. “Antenna module” may refer to circuitry including one or more antennas, which may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.

[0071] In some examples, each of the antenna elements of an antenna 234 or an antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, and / or other types of antennas0097-5722PCT 22arranged in a linear pattern, a two-dimensional pattern, or another pattern. A spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere constructively and destructively along various directions (such as to form a desired beam). For example, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, a half wavelength, or another fraction of a wavelength of spacing between neighboring antenna elements to allow for the desired constructive and destractive interference patterns of signals transmitted by the separate antenna elements within that expected range.

[0072] The amplitudes and / or phases of signals transmitted via antenna elements and / or subelements may be modulated and shifted relative to each other (such as by manipulating phase shift, phase offset, and / or amplitude) to generate one or more beams, which is referred to as beamforming. The term “beam” may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. “Beam” may also generally refer to a direction associated with such a directional signal transmission, a set of directional resources associated with the signal transmission (for example, an angle of arrival, a horizontal direction, and / or a vertical direction), and / or a set of parameters that indicate one or more aspects of a directional signal, a direction associated with the signal, and / or a set of directional resources associated wdth the signal. In some implementations, antenna elements may be individually selected or deselected for directional transmission of a signal (or signals) by controlling amplitudes of one or more corresponding amplifiers and / or phases of the signal(s) to form one or more beams. The shape of a beam (such as the amplitude, width, and / or presence of side lobes) and / or the direction of a beam (such as an angle of the beam relative to a surface of an antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and / or amplitudes of the multiple signals relative to each other.[00731 Different UEs 120 or network nodes 110 may include different numbers of antenna elements. For example, a UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or a different number of antenna elements. As another example, a network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or a different number of antenna elements. Generally, a larger number of antenna elements may provide increased control over parameters for beam generation relative to a smarter number of antenna elements, whereas a smaller number of antenna elements may be less complex to implement and may use less power than a larger number of antenna elements. Multiple antenna elements may support multiple-layer transmission, in which a first layer of a communication (which may include a first data stream) and a second layer of a communication (which may include a second data stream) are transmitted using the same time and frequency resources with spatial multiplexing.0097-5722PCT 23

[0074] Figure 3 is a diagram illustrating an example disaggregated base station architecture 300 in accordance with the present disclosure. One or more components of the example disaggregated base station architecture 300 may be, may include, or may be included in one or more network nodes (such one or more network nodes 110). The disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link, or that can communicate indirectly with the core network 320 via one or more disaggregated control units, such as a Non-RT RIC 350 associated with a Sendee Management and Orchestration (SMO) Framework 360 and / or a Near-RT RIC 370 (for example, via an E2 link). The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via Fl interfaces. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective RF access links. In some deployments, a UE 120 may be simultaneously served by multiple RUs 340.

[0075] Each of the components of the disaggregated base station architecture 300, including the CUs 310, the DUs 330, the RUs 340, the Near-RT RICs 370, the Non-RT RICs 350, and the SMO Framework 360, may include one or more interfaces or may be coupled with one or more interfaces for receiving or transmitting signals, such as data or information, via a wired or wireless transmission medium.

[0076] In some aspects, the CU 310 may be logically split into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units. A CU-UP unit may communicate bidirectionally with a CU-CP unit via an interface, such as the El interface when implemented in an O-RAN configuration. The CU 310 may be deployed to communicate with one or more DUs 330, as necessary, for network control and signaling. Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340. For example, a DU 330 may host various layers, such as an RLC layer, a MAC layer, or one or more PHY layers, such as one or more high PHY layers or one or more low7PHY layers. Each layer (which also may be referred to as a module) may be implemented with an interface for communicating signals with other layers (and modules) hosted by the DU 330, or for communicating signals with the control functions hosted by the CU 310. Each RU 340 may implement lower layer functionality. In some aspects, real-time and non-real-time aspects of control and user plane communication with the RU(s) 340 may be controlled by the corresponding DU 330.

[0077] The SMO Framework 360 may support RAN deployment and provisioning of nonvirtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 360 may support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface, such as an 01 interface. For virtualized netw ork elements, the SMO Framew'ork 360 may interact with a0097-5722PCT 24cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface, such as an 02 interface. A virtualized network element may include, but is not limited to, a CU 310. a DU 330. an RU 340, a non-RT RIC 350. and / or a Near-RT RIC 370. In some aspects, the SMO Framework 360 may communicate with a fiardware aspect of a 4G RAN, a 5G NR RAN, and / or a 6G RAN, such as an open eNB (O- eNB) 380, via an 01 interface. Additionally or alternatively , the SMO Framework 360 may communicate directly with each of one or more RUs 340 via a respective 01 interface. In some deployments, this configuration can enable each DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.

[0078] The Non-RT RIC 350 may include or may implement a logical function tliat enables non-real-time control and optimization of RAN elements and resources, A17ML workflows including model training and updates, and / or policy -based guidance of applications and / or features in the Near-RT RIC 370, The Non-RT RIC 350 may be coupled to or may communicate with (such as via an Al interface) the Near-RT RIC 370. The Near-RT RIC 370 may include or may implement a logical function that enables near-retd-time control and optimization of RAN elements and resources via data collection and actions via an interface (such as via an E2 interface) connecting one or more CUs 310, one or more DUs 330, and / or an O-eNB with die Near-RT RIC 370.

[0079] In some aspects, to generate Al / ML models to be deployed in the Near-RT RIC 370, the Non-RT RIC 350 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 370 and may be received at the SMO Framework 360 or the Non-RT RIC 350 from non-network data sources or from network functions. In some examples, the Non-RT RIC 350 or the Near-RT RIC 370 may tune RAN behavior or performance. For example, the Non-RT RIC 350 may monitor long-term trends and patterns for performance and may employ AI / ML models to perform corrective actions via the SMO Framework 360 (such as reconfiguration via an 01 interface) or via creation of RAN management policies (such as Al interface policies).

[0080] The network node 110, the controller / processor 240 of the network node 110, the UE 120, the controller / processor 280 of the UE 120, the CU 310, the DU 330, the RU 340, or any other component) s) of Figures 1 , 2, or 3 may implement one or more techniques or perform one or more operations associated with communication collision detection and handling, as described in more detail elsewhere herein. For example, tire controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, any oilier component(s) of Figure 2, the CU 310, the DU 330, or the RU 340 may perform or direct operations of, for example, process 800 of Figure 8 or other processes as described herein (alone or in conjunction with one or more other processors). The memory 242 may store data and program codes for the0097-5722PCT 25network node 110, the network node 110, the CU 310, the DU 330, or the RU 340. The memoiy 282 may store data and program codes for the UE 120. In some examples, the memory 242 or the memory 282 may include a non-transitory computer-readable medium storing a set of instructions (for example, code or program code) for wireless communication. The memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types). The memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types). For example, the set of instructions, when executed (for example, directly, or after compiling, converting, or interpreting) by one or more processors of the network node 1 10, the UE 120, the CU 310, the DU 330, or the RU 340, may cause the one or more processors to perform process 800 of Figure 8 or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.

[0081] In some aspects, the first device includes means for detecting a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device; means for dropping tlie outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal: and / or means for communicating with the second device using the other of the outgoing signal or the incoming signal. In some aspects, the means for the first device to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0082] Figure 4 is a diagram illustrating an example method 400 of communication collision detection and handling in accordance with the present disclosure. A first device 405 may communicate with a second device 410. The first device 405 may be a UE, such as the UE 120, among other examples. The second device 410 may be another UE, a fixed-line device, or a gateway, among other examples.

[0083] In an operation 415, the first device 405 (and / or the second device 410) may detect a collision between an outgoing signal from the first device 405 to the second device 410 and an incoming signal from the second device 410 to the first device 405. In some aspects, the outgoing signal may be an outgoing media signal (such as a signaling to establish a telephone call) from the first device 405 to the second device 410 and the incoming signal may be an incoming media signal received at tlie first device 405 from the second device 410. In some other aspects, the outgoing signal may be a media hold indication (or a media resume indication) transmitted by the first device 405 to the second device 410 and the incoming signal may be a media hold indication (or a media resume indication) received at the first device 4050097-5722PCT 26from the second device 410. In some other aspects, the outgoing signal may be an indication to switch between media types transmitted by the first device 405 to the second device 410 (such as an indication to switch from a telephone cail to a video call or from a video call to a telephone call) and the incoming signal may be an indication to switch between media types received at the first device 405 from the second device 410.

[0084] In an operation 420, tlie first device 405 (and / or the second device 410) may drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal. In some aspects, the signaling protocol information may be SIP information (for example, as described in Session Initiation Protocol, IETF RFC 2543), SS7 information (for example, as described in signaling system No. 7) il information (for example, as described in 3GPP TS 24.294), or other control protocol information. For example, the first device 405 (and / or the second device 410) may drop the outgoing signal or the incoming signal in accordance with comparing SIP information of the outgoing signal and SIP information of the incoming signal.

[0085] In an operation 42.5, the first device 405 and the second device 410 may communicate using the other of the outgoing signal or the incoming signal. For example, the first device 405 (and / or the second device 410) may continue communications using the outgoing signal in accordance with the first device 405 (and / or the second device 410) dropping the incoming signal, or may continue communications using the incoming signal in accordance with the first device 405 (and / or the second device 410) dropping the outgoing signal. In some aspects, the first device and the second device may reliably continue and drop using the same procedure.[0086 [ In a first example, detecting the collision between the outgoing signal and the incoming signal may include comparing a first source indication and a first destination indication included in the signaling protocol information of the outgoing signal with a second source indication and a second destination indication included in the signaling protocol information of the incoming signal. For example, first device 405 (and / or the second device 410) may determine that the first source indication and the second destination indication are associated with the first device 405 and that the second source indication and the first destination indication are associated with the second device 410. In this example, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal may include the first device 405 dropping the outgoing signal, and communicating with the second device 410 using the other of the outgoing signal or the incoming signal may include the first device 405 communicating with the second device 410 using tlie incoming signal.

[0087] In some aspects, delecting the collision may include detecting a mobile terminated (MT) signal (such as a telephone call or other signal transmitted by the second device 410 to the first device 405) while a mobile originated (MO) signal (such as a telephone call or other signal0097-5722PCT 27transmitted by the first device 405 to the second device 410) is in progress. The first device 405, in accordance with detecting the MT signal while the MO signal is in progress, may compare MO signal destination information and MT signal source information. For example, the first device 405 may compare SIP message headers (such as “to” and “from” headers) in the MO signal and with SIP message headers in the MT signal to determine whether the MT signal is received from the same device to which the first device 405 is atempting to send the MO signal (for example, tire second device 410). If the MO signal destination information and the MT signal source information match, the first device 405 may initiate a collision mitigation process. For example, the first device 405 may abort the ongoing MO signal and accept the MT signal from the second device 410. This may avoid the communication session between the first device 405 and the second device 410 being dropped. Additional details regarding these features are described in connection with Figure 5.

[0088] In a second example, the signaling protocol information of the outgoing signal is associated with a first priority and the signaling protocol information of the incoming signal is associated with a second priority.

[0089] In some aspects, the first device 405 (and / or the second device 410) may set the first priority to a low priority and the second priority to a high priority in accordance with an initial signal between the first device 405 and the second device 410 being transmitted by the first device 405 to the second device 410 and in accordance with a subsequent signal between the first device 405 and the second device 410 being transmitted by the second device 410 to the first device 405. In this example, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling pro tocol information of the outgoing signal and the signaling pro tocol information of the incoming signal may include dropping the outgoing signal, and communicating with the second device 410 using the other of the outgoing signal or the incoming signal may include communicating with the second device using the incoming signal.

[0090] In some aspects, the first device 405 (and / or the second device 410) may set the first priority7to a high priority and the second priority to a low priority in accordance with an initial signal between the first device 405 and the second device 410 being transmitted by the first device 405 to the second device 410 and in accordance with a subsequent signal between the first device 405 and the second device 410 being transmitted by the first device 405 to the second device 410. In this example, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal may include dropping the incoming signal, and communicating with the second device using the other of the outgoing signal or the incoming signal may include communicating with the second device using the outgoing signal.

[0091] In some aspects, the first device 405 (and / or the second device 410) may analyze a control protocol payload (such as SIP header or other signaling protocol payloads included in a0097-5722PCT 28control protocol message. The first device 405 (and / or the second device 410) can use the beader to set a priority for a media session. For example, if the second device 410 has missed a call from the first device 405, or if the call is otherwise originated from the first device 405, tins information may be stored in a call history. If the second device 410 attempts to call the first device 405 back, then the MO signal with the priority header may be set to a tow priority. If the first device 405 tries to call the second device 410 again, the first device 405 may set the MO signal register with a high priority. If there is an ongoing call and one of the devices triggers a hold indication or a media switch indication, the MO user may use the high priority for all future invites with the SIP header and the MT user may use a low priority for all future invites with the SIP header. In this example, the first device 405 may check the MO signal priority included in the priority header. If the MO signal is low priority’, the first device 405 may’ abort the MO signal and accept the MT signal. Alternatively, the first device 405 may continue with the MO signal. Additional details regarding these features are described in connection with Figure 6.

[0092] In a third example, dropping the outgoing signal or the incoming signal in accordance with comparing some of the signaling protocol information of the outgoing signal and corresponding protocol information of the incoming signal may include dropping the outgoing signal or the incoming signal in accordance with comparing a first value included in the signaling protocol information of the outgoing signal with a second value included in the signaling protocol information of the incoming signal. For example, dropping the outgoing signal or the incoming signal in accordance with comparing the first value with the second value may include dropping the outgoing signal or tire incoming signal in accordance an output of a function that uses the first value and the second value. The first value and the second value may be stored at the first device 405 and the second device 410. For example, the first device 405 may store the first value and the second value and the second device 410 may store the first value and the second value.

[0093] In some aspects, the first device 405 (and / or the second device 410) may compare information in the MO signal (for example, “to,” “from,” and / or a phone number included in the MO signal) and information included in the MT signal (for example, “to,” “from,” and / or “phone number” included in the MT signal). In some aspects, the devices can compare any information that is known to both devices and is not modified by intermediate signaling nodes. If the MO signal transmitted by the first device 405 lias a value that is greater than a value in the MT signal received from the second device 410, the first device 405 may accept the MT signal from the second device 410. The signal information (such as the “to,” “from,” phone number, caller identification (ID) (call-ID), and / or command sequence (c-seq)) associated with the MO signal and the MT signal is stored at the first device 405 and the second device 410. In some aspects, greater may refer to finding the decimal, hexadecimal, or other representation of the0097-5722PCT 29phone number or identifier (such as SIP:tom@yellow.com represented in hex format) that has the greatest value. For example, the signal information associated with the MO signal is stored at the first device 405 and the second device 410 and the signal information associated with the MT signal is stored al the first device 405 and the second device 410. Tins may enable the first device 405 and the second device 410 to drop calls without further intervention. For example, the first device 405 and tlie second device 410 may be configured to drop the invite having the lower value (such as the value of the telephone number of the first device 405) and to accept the invite having the higher value (such as the value of lire telephone number of the second device 410).

[0094] In some aspects, the first value is a telephone number of the first device 405 and the second value is a telephone number of the second device 410. In this example, the first device 405 (and / or the second device 410) may perform a direct comparison of the telephone numbers. For example:S(A) = (Mobile Number ik), S(B) = (Mobile Number B), and if S(A) > S(B) then ‘A’ invite is high priority and is to be accepted by ‘B’. Else, ‘B’ invite is io be accepted by ‘A’.

[0095] In some aspects, the first value is a hash of a mobile number of the first device 405 and the second value is a hash of a mobile number of the second device 410. In this example, the first device 405 (and / or tlie second device 410) may perform a comparison of the hash of the telephone numbers. For example:S(A):::Hash (Number A), S(B) - Hash (Number B), and if S(A) > S(B) then ‘A’ invite is high priority and is to be accepted byElse, ‘B’ invite is to be accepted by ‘ A’.

[0096] In some aspects, the first value is a hash of a mobile number of the first device 405 and a time-varying input and the second value is a hash of a mobile number of the second device 410 and the time-vary ing input. In this example, the first device 405 (and / or the second device 410) may perform a comparison of the hash of the telephone numbers and the timevarying input. This may improve a likelihood that if A and B experience collisions frequently, the outcome changes over time. Additionally, or alternatively, this may improve a likelihood that the resolution is fair, for example, if the originator of the call has to pay for it. For example:S(A):::Hash (Number A -t- common_time-vaiying-iiiput()), S(B) Hash (Number B + common_time-varying-input()), and if S(A) > S(B) then ‘A’ invite is high priority and is to be accepted by ‘B’. Else, ‘B’ invite is to be accepted by ‘A’.0097-5722PCT 30Other functions are possible, for example, if the functions are defined in a way where both parties can obtain the inputs.

[0097] In some aspects, the time-varying input (common_time-varying-input()) may be a day of the month (such as in GMT (ranging 1, 31)) or another common parameter. Additionally or alternatively, the hash is a has function such as MD5, SHA, or other common function.Additional details regarding these features are described in connection with Figure 7.

[0098] Figure 5 is a diagram illustrating an example method 500 of communication collision detection and mitigation in accordance with the present disclosure.

[0099] In an operation 505, a device may compare an MO invite target and an MT invite source using a detection flag (Detection flag). The device may be the first device 405 or the second device 410, among other examples. The MO invite target may be a destination identifier included in an MO invite transmitted by the device, and the MT invite source may be a source identifier included in an MT signal received by the device from another device. For example, the device may compare target information (such as a target telephone number) in an MO signal transmitted by the device to another device with source information (such as a source telephone number) in an MT signal received at the device from the other device.

[0100] In an operation 510, the device may determine whether the detection flag is true. The detection flag may be true if information included in the MO invite (such as MO header information) matches information included in the MT invite (such as MT header information). For example, the detection flag may be true if the MO invite target matches the MT invite source. Alternatively, the detection flag may be false if the information included in the MO invite does not match the information included in the MT invite. For example, the detection flag may be false if the MO invite target does not match lire MT invite source.

[0101] In an operation 515, if the detection flag is not true (for example, if the detection flag is false), the device may detect a busy signal. Additionally or alternatively, the device may drop the MO signal and the MT signal, thereby resulting in a dropped call.

[0102] In an operation 520, if the detection flag is tare, the device may drop the MO invite and accept the MT invite. Therefore, the device and the other device may communicate using the MT signal.

[0103] Figures 6A-6B are diagrams illustrating an example method 600 of communication collision detection and mitigation using header information in accordance with the present disclosure.

[0104] As shown in Figure 6A and by reference number 605, a device (Device B) (for example, the first device 405 or the second device 410) determines whether a missed call is from another device (Device A) (for example, the other of the first device 405 or the second0097-5722PCT 31device 410). Additionally, Device B determines whether to trigger an MO signal to Device A (for example, in response to the missed call).

[0105] In an operation 610, the device sets a header (such as a SIP header) to a low priority in accordance with the missed call being from Device A and in accordance with Device B triggering an MO signal to Device A.

[0106] In an operation 615, the device sets the header (such as the SIP header) to a liigh priority in accordance with the missed call not being from Device A and / or in accordance with Device B not triggering an MO signal to Device A.

[0107] As shown in Figure 6B and by reference number 620, the device receives an MT invite after an MO invite is received (for example, from the other device) and while the MO invite is in progress.

[0108] In an operation 625, the device compares the MO invite target and the MT invite source using a detection flag. The detection flag may be true if information included in the MO invite (such as MO header information) matches information included in the MT invite (such as MT header information). For example, the detection flag may be true if the MO invite target matches the MT invite source. Alternatively, the detection flag may be false if the information included in the MO invite does not match the information included in the MT invite. For example, the detection flag may be false if the MO invite target does not match the MT invite source.

[0109] In an operation 630, the device determines if the detection flag is true.

[0110] In an operation 635, if the detection flag is not true (for example, if the detection flag is false), the device may detect a busy signal. Additionally or alternatively, the device may drop the MO signal and the MT signal, thereby resulting in a dropped call.

[0111] In an operation 640, if the detection flag is true, the device determines if the MO invite priority header is set to the low priority.

[0112] In an operation 645, if the MO invite priority header is set to the low priority, the device may reject the MT invite. Therefore, the device and the other device may communicate using the MO invite.

[0113] In an operation 650, if the MO invite priority header is the liigh priority, the device may reject the MO invite and map accept the MT invite. Therefore, the device and tire other device may communicate using the MT invite.

[0114] Figure 7 is a diagram illustrating an example method 700 of communication collision detection and mitigation without header information in accordance with the present disclosure.

[0115] In an operation 705, a device (such as the first device 405) receives an MT invite after an MO invite is received (for example, from another device, such as the second device 410) and while the MO invite is in progress.0097-5722PCT 32

[0116] In an operation 710, the device compares the MO invite target and the MT invite source using a detection flag. The detection flag may be true if information included in the MO invite (such as MO header infonnation) matches infonnation included in the MT invite (such as MT header information). For example, tlie detection flag may be true if the MO invite target matches the MT invite source. Alternatively, the detection flag may be false if the information included in the MO invite does not match the infonnation included in tlie MT invite. For example, the detection flag may be false if the MO invite target does not match the MT invite source.[Oil 7| In an operation 715, the device determines if the detection flag is true.[Oil 8] In an operation 720, if the detection flag is not true (for example, if the detection flag is false), the device may detect a busy signal. Additionally or alternatively, the device may drop the MO signal and the MT signal, thereby resulting in a dropped call.[0119| In an operation 725, if die detection flag is true, the device determines if a value of the MT invite is greater than a value of tlie MO invite. For example, the device may determine whether a telephone number of the MT invite, a hash of the telephone number of the MT invite, or a bash of the telephone number and a time-varying input of the MT invite is greater than a telephone number of the MO invite, a hash of the telephone number of the MO invite, or a hash of the telephone number and a time-varying input of the MO invite, respectively ,

[0120] In an operation 730, if the value of the MT invite is not greater than the value of the MO invite (for example, if the value of the MT invite is less than or equal to the value of the MO invite), the device may continue with the MO invite and may reject the MT invite. Therefore, the device and the other device may communicate using the MO invite.

[0121] In an operation 735, if the value of the MT invite is greater than a value of the MO invite, the device may reject the MO invite and map accept the MT invite. Therefore, the device and the other device may communicate using tlie MT invite.[0122J Figure 8 is a flowchart illustrating an example process 800 performed, for example, at a first device or an apparatus of a first device that supports wireless communications in accordance with the present disclosure. Example process 800 is an example where the apparatus or the first device (for example, first device 405) performs operations associated with communication collision detection and handling.

[0123] As shown in Figure 8, in some aspects, process 800 may include detecting a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device (block 810). For example, the first device (such as by using communication manager 140 or detecting component 908, depicted in Figure 9) may detect a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device, as described above.0097-5722PCT[01241 As further shown in Figure 8, in some aspects, process 800 may include dropping the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal (block 820). For example, the first device (such as by using communication manager 140 or dropping component 910, depicted in Figure 9) may drop the outgoing signal or die incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal, as described above.[0125| As further shown in Figure 8, in some aspects, process 800 may include communicating with the second device using the other of the outgoing signal or the incoming signal (block 830). For example, the first device (such as by using communication manager 140, reception component 902, or transmission component 904, depicted in Figure 9) may communicate with the second device using the other of the outgoing signal or the incoming signal, as described above.

[0126] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below or in connection with one or more other processes described elsewhere herein.

[0127] In a first additional aspect, the signaling protocol information is session initiation protocol information.

[0128] In a second additional aspect, alone or in combination with the first aspect, the outgoing signal is an outgoing media call from the first device to the second device, a call hold indication transmitted by the first device to the second device, or an indication to switch between media types transmitted by the first device to the second device, and wherein the incoming signal is an incoming media call at the first device from the second device, a call hold indication received by the first device from the second device, or an indication to switch between media types received by the first device from the second device.

[0129] In a third additional aspect, alone or in combination with one or more of the first and second aspects, detecting the collision between the outgoing signal and the incoming signal comprises comparing a first source indication and a first destination indication included in the signaling protocol information of the outgoing signal with a second source indication and a second destination indication included in the signaling protocol information of the incoming signal, determining that the first source indication and the second destination indication are associated with the first device, and determining that the second source indication and the first destination indication are associated with the second device.

[0130] In a fourth additional aspect, alone or in combination with one or more of the first through third aspects, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol0097-5722PCT 34information of tire incoming signal comprises dropping the outgo ing signal, and wherein communicating with the second device using tire other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal.

[0131] In a fifth additional aspect, alone or in combination with one or more of the first through fourth aspects, the signaling protocol information of the outgoing signal indicates a first priority and tlie signaling protocol information of the incoming signal indicates a second priority.[0132[ In a sixth additional aspect, alone or in combination with one or more of the first through fifth aspects, process 800 includes setting the first priority to a low priority and the second priority to a high priority in accordance with an initial signal between the first device and the second device being transmitted by the first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the second device to the first device.

[0133] In a seventh additional aspect, atone or in combination with one or more of the first through sixth aspects, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal.

[0134] In an eighth additional aspect, alone or in combmation with one or more of the first through seventh aspects, process 800 includes setting the first priority to a high priority and the second priority to a low priority in accordance with an initial signal between the first device and the second device being transmitted by the first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the first device to the second device.[0135[ In a ninth additional aspect, alone or in combination with one or more of the first through eighth aspects, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of tlie outgoing signal and the signaling protocol information of the incoming signal comprises dropping the incoming signal, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the outgoing signal.

[0136] In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal or the incoming signal in accordance with comparing a first value included in die signaling protocol information0097-5722PCT 35of the outgoing signal w ith a second value included in the signaling protocol information of the incoming signal.

[0137] In an eleventh additional aspect, alone or in combination with one or more of the first through tenth aspects, dropping the outgoing signal or the incoming signal in accordance wdlh comparing the first value with the second value comprises dropping the outgoing signal or the incoming signal in accordance an output of a function that uses Hie first value and the second value, wherein the first value and the second value are stored at the first device and the second device.[0138| In a twelfth additional aspect, alone or in combination with one or more of the first through eleventh aspects, the first value is a telephone number of the first device and the second value is a mobile number of the second device.

[0139] In a thirteenth additional aspect, alone or in combination with one or more of the first through twelfth aspects, the first value is a hash of a mobile number of the first device and the second value is a hash of a mobile number of the second device.

[0140] In a fourteenth additional aspect, alone or in combination wtith one or more of the first through thirteenth aspects, the first value is a bash of a mobile number of the first device and a time-varying input and the second value is a hash of a mobile number of the second device and the time-varying input.

[0141] In a fifteenth additional aspect, alone or in combination with one or more of the first through fourteenth aspects, the time-varying input is in accordance with a current day of a month.

[0142] In a sixteenth addit ional aspect, alone or in combination with one or more of the first through fifteenth aspects, dropping the outgoing signal or the incoming sigtral in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping die incoming Signal in accordance with the first value being greater than the second value, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the outgoing signal.

[0143] In a seventeenth additional aspect, alone or in combination with one or more of the first through sixteenth aspects, dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal in accordance w ith the second value being greater than the first value, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal .0097-5722PCT 36

[0144] Although Figure 8 shows example blocks of process 800. in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Figure 8. Additionally or alternatively, two or more of the blocks of process 800 may be performed in parallel.

[0145] Figure 9 is a diagram of an example apparatus 900 for wireless communication that supports wireless communications m accordance with the present disclosure. The apparatus 900 may be a first device, or a first device may include the apparatus 900. In some aspects, the apparatus 900 includes a reception component 902, a transmission component 904, and a communication manager 140, which may be in communication with one another (for example, via one or more buses). As shown, the apparatus 900 may communicate with another apparatus 906 (such as a UE, a network node, or another wireless communication device) using the reception component 902 and the transmission component 904.

[0146] In some aspects, the apparatus 900 may be configured to and / or operable to perform one or more operations described herein in connection with Figures 4-7. Additionally or alternatively, the apparatus 900 may be configured to and / or operable to perform one or more processes described herein, such as process 800 of Figure 8. In some aspects, the apparatus 900 may include one or more components of the first device described above in connection with Figure 1 and Figure 2.

[0147] The reception component 902 may receive communications, such as reference signals, control information, and / or data communications, from the apparatus 906. The reception component 902 may provide received communications to one or more oilier components of the apparatus 900. such as the communication manager 140. In some aspects, the reception component 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components. In some aspects, the reception component 902 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllera / processors, and / or one or more memories of the first device described above in connection with Figure 1 and Figure 2.

[0148] The transmission component 904 may transmit communications, such as reference signals, control information, and / or data communications, to the apparatus 906. In some aspects, the communication manager 140 may generate communications and may transmit the generated communications to the transmission component 904 for transmission to the apparatus 906. In some aspects, the transmission component 904 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog0097-5722PCT 37conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus 906. In some aspects, the transmission component 904 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MEMO processors, one or more transmit processors, one or more controllers / processors, and / or one or more memories of tire first device described above in connection with Figure 1 and Figure 2. In some aspects, the transmission component 904 may be co-Iocated with the reception component 902 in one or more transceivers.

[0149] The communication manager 140 may detect a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device. The communication manager 140 may drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal. The communication manager 140 may communicate with the second device using the other of the outgoing signal or the incoming signal. In some aspects, the communication manager 140 may perform one or more operations described elsewhere herein as being performed by one or more components of the communication manager 140.

[0150] The communication manager 140 may include one or more controllers / processors and / or one or more memories of the first device described above in connection with Figure 1 and Figure 2. In some aspects, tire communication manager 140 includes a set of components, such as a detecting component 908, a dropping component 910, and / or a prioritizing component 912. Alternatively, the set of components may be separate and distinct from the communication manager 140. In some aspects, one or more components of the set of components may include or may be implemented within one or more controllers / processors and / or one or more memories of the first device described above in connection with Figure 1 and Figure 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer- readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.

[0151] The detecting component 908 may detect a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device. The dropping component 910 may drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal. The reception component 902 and / or the transmission component 904 may communicate with the second device using the other of the outgoing signal or the incoming signal.0097-5722PCT

[0152] The prioritizing component 912 may set the first priority to a low priority and the second priority to a high priority in accordance with an initial signal between the first device and the second device being transmitted by the first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the second device to the first device. The prioritizing component 912 may set the first priority to a high priority' and the second priority to a low priority in accordance with an initial signal between the first device and the second device being transmitted by the first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the first device to the second device.[0153| The quantity and arrangement of components shown in Figure 9 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Figure 9. Furthermore, two or more components shown in Figure 9 may be implemented within a single component, or a single component shown in Figure 9 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Figure 9 may perform one or more functions described as being performed by another set of components shown in Figure 9.

[0154] The following provides an overview of some Aspects of the present disclosure:

[0155] Aspect 1 : A method for wireless communication by a first device, comprising: detecting a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device; dropping the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal; and communicating with the second device using the other of the outgoing signal or the incoming signal.

[0156] Aspect 2; The method of Aspect 1, wherein the signaling protocol information is session initiation protocol information.

[0157] Aspect 3: The method of any of Aspects 1-2, wherein the outgoing signal is an outgoing media call from the first device to the second device, a call hold indication transmitted by the first device to the second device, or an indication to switch between media types transmitted by the first device to the second device, and wherein the incoming signal is an incoming media call at the first device from the second device, a call hold indication received by the first device from the second device, or an indication to switch between media types received by the first device from the second device,

[0158] Aspect 4: The method of any of Aspects 1-3, wherein detecting the collision between the outgoing signal and the incoming signal comprises: comparing a first source indication and a first destination indication included in the signaling protocol information of the outgoing signal0097-5722PCT 39with a second source indication and a second destination indication included in the signaling protocol information of the incoming signal; determining that the first source indication and the second destination indication are associated with the first device; and determining that the second source indication and the first destination indication are associated with the second device.

[0159] Aspect 5: The method of Aspect 4, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal, and wherein communica ting with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal.[0160[ Aspect 6: The method of any of Aspects 1-5, wherein the signaling protocol information of the outgoing signal indicates a first priority and the signaling protocol information of the incoming signal indicates a second priority.

[0161] Aspect 7: The method of Aspect 6, further comprising setting the first priority to a low priority and the second priority to a high priority in accordance with an initial signal between the first device and the second device being transmitted by the first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the second device to the first device.[01621 Aspect 8: The method of / Aspect 7, wherein dropping the outgoing signal or the incoming signal in accordmice with comparing foe signaling protocol information of the outgoing signal and foe signaling protocol information of the incoming signal comprises dropping tire outgoing signal, and wherein communicating with foe second device using the other of the outgoing signal or tlie incoming signal comprises communicating with the second device using the incoming signal.[01631 Aspect 9: The method of Aspect 6, further comprising setting the first priority to a high priority and tlie second priority to a low priority in accordance with an initial signal between the first device and the second device being transmitted by the first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the first device to the second device.

[0164] Aspect 10: The method of Aspect 9, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the incoming signal, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the outgoing signal.0097-5722PCT 40

[0165] Aspect 11 : The method of any of Aspects 1 - 10. wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal or the incoming signal in accordance w'lih comparing a first value included in the signaling protocol information of the outgoing signal with a second value included in the signaling protocol information of the incoming signal.

[0166] Aspect 12: The method of Aspect 11, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the first value with the second value comprises dropping the outgoing signal or the incoming signal in accordance an output of a function that uses the first value and the second value, wherein the first value and the second value are stored at the first device and the second device.

[0167] Aspect 13: The method of Aspect 11, wherein the first value is a telephone number of the first device and the second value is a mobile number of the second device.

[0168] Aspect 14: The method of Aspect 11, wherein the first value is a hash of a mobile number of the first device and the second value is a hash of a mobile number of the second device.

[0169] Aspect 15: The method of Aspect 11, wherein the first value is a bash of a mobile number of the first device and a time-varying input and the second value is a hash of a mobile number of the second device and the time-varying input.

[0170] Aspect 16: The method of Aspect 15, wherein the time-varying input is in accordance with a current day of a month.

[0171] Aspect 17: The method of Aspect 11, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the incoming signal in accordance with the first value being greater than the second value, and w;herein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using tire outgoing signal.

[0172] Aspect 18: The method of Aspect 11, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal in accordance with the second value being greater titan the first value, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal.0097-5722PCT 41

[0173] Aspect 19: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method of one or more of Aspects 1-18.

[0174] Aspect 20: An apparatus for wireless communication at a device, the apparatus comprising one or more memories arid one or more processors coupled to the one or more memories, the one or more processors configured to cause the device to perform the method of one or more of Aspects 1-18.

[0175] Aspect 21: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1 -18.

[0176] Aspect 22: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform the method of one or more of Aspects 1-18.

[0177] Aspect 23 : A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-18.

[0178] Aspect 24: A device for wireless communication, the device comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the device to perform the method of one or more of Aspects 1-18.

[0179] Aspect 25: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to cause the device to perform the method of one or more of / Aspects 1-18.

[0180] The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

[0181] As used herein, die term "component” is intended to be broadly construed as hardware or a combination of hardware and at least one of software or firmware. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, among other examples, wdiether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a “processor” is implemented in hardware or a combination of hardware and software. It will be apparent that0097-5722PCT 42systems or methods described herein may be implemented in different forms of hardware or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems or methods is not limiting of the aspects. Thus, the operation and behavior of the systems or methods are described herein without reference to specific software code, because those skilled in the art will understand that software and hardware can be designed to implement the systems or methods based, at least in part, on the description herein. A component being configured to perform a function means that the component has a capability to perform the function, and does not require the function to be actually performed by the component, unless noted otherwise.[01821 As used herein, “satisfying a threshold" may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less titan the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples.[0183[ As used herein, a phrase referring to “at least one of’ a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiples of the same element (for example, a + a, a + a + a, a + a + b, a + a + c. a + b + b, a + c + c, b t b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c).

[0184] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has,” “have,” “having,” and similar terms are intended to be open-ended terms that do not limit an element that they modify (for example, an element “having” A may also have B). Further, the phrase “based on” is intended to mean “based on or otherwise in association with” unless explicitly stated otherw ise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or,” unless explicitly stated otherwise (for example, if used in combination with “either” or “only one of). It should be understood that “one or more” is equivalent to “at least one.”

[0185] Even though particular combinations of features arc recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combmed in ways not specifically recited in the claims0097-5722PCT 43or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set.0097-5722PCT 44

Claims

WAT IS CLAIMED IS:

1. A first device for wireless conmmnication, comprising: a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the first device to: detect a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device: drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal; and communicate with the second device using the other of the outgoing signal or the incoming signal.

2. The first device of claim 1, wherein the signaling protocol information is session initiation protocol information.

3. The first device of claim 1, wherein the outgoing signal is an outgoing media call from the first device to tire second device, a call hold indication transmitted by the first device to the second device, or an indication to switch between media types transmitted by the first device to the second device, and wherein the incoming signal is an incoming media call at the first device from the second device, a call bold indication received by the first device from the second device, or an indication to switch between media types received by the first device from the second device.

4. The first device of claim 1, wherein, to cause the first device to detect the collision between the outgoing signal and the incoming signal, the processing system is configured to cause the first device to: compare a first source indication and a first destination indication included in the signaling protocol information of the outgoing signal with a second source indication and a second destination indication included in the signaling protocol information of the incoming signal; determine that the first source indication and the second destination indication are associated with the first device; and determine that the second source indication and the first destination indication are associated with the second device.0097-5722PCT 455. The first device of claim 4, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal.

6. The first device of claim 1, wherein the signaling protocol information of tire outgoing signal indicates a first priority and the signaling protocol information of the incoming signal indicates a second priority.

7. The first device of claim 6, wherein the processing system is further configured to cause the first device to set the first priority to a low priority and the second priority to a high priority in accordance with an initial signal between the first device and the second device being transmitted by the first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the second device to the first device.

8. The first device of claim 7, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing signal, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal.

9. The first device of claim 6, wherein the processing system is further configured to cause the first device to set the first priority to a high priority and the second priority to a low priorityin accordance with an initial signal between the first device and the second device being transmitted by die first device to the second device and in accordance with a subsequent signal between the first device and the second device being transmitted by the first device to the second device.

10. The first device of claim 9, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of lire outgoing signal and the signaling protocol information of the incoming signal comprises dropping the incoming signal, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the outgoing signal.0097-5722PCT 4611. The first device of claim 1, wherein, to cause the first device to drop the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal, the processing system is configured to cause the first device to drop the outgoing signal or the incoming signal in accordance with comparing a first value included in the signaling protocol information of the outgoing signal with a second value included in the signaling protocol information of the incoming signal.

12. The first device of claim i 1 , wherein dropping the outgoing signal or the incoming signal in accordance with comparing the first value with the second value comprises dropping the outgoing signal or the incoming signal in accordance an output of a function that uses the first value and the second value, wherein the first value and the second value are stored at the first device and the second device.

13. The first device of claim 11, wherein the first value is a telephone number of the first device and the second value is a mobile number of the second device.

14. The first device of claim 11, wherein the first value is a flash of a mobile number of the first device and the second value is a hash of a mobile number of the second device.

15. The first device of claim 11, wherein the first value is a flash of a mobile number of the first device and a time-vary ing input and the second value is a hash of a mobile number of the second device and the time-vary ing input.

16. The first device of claim 15, wherein the time-varying input is in accordance with a mrrent day of a month.

17. The first device of claim 11, wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of tire incoming signal comprises dropping the incoming signal in accordance with the first value being greater than the second value, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating witli the second device using the outgoing signal.

18. The first device of claim i 1 , wherein dropping the outgoing signal or the incoming signal in accordance with comparing the signaling protocol information of the outgoing signal and the signaling protocol information of the incoming signal comprises dropping the outgoing0097-5722PCT 47signal in accordance with the second value being greater than the first value, and wherein communicating with the second device using the other of the outgoing signal or the incoming signal comprises communicating with the second device using the incoming signal.

19. A method for wireless communication by a first device, comprising: detecting a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device; dropping tlie outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal; and communicating with the second device using the other of the outgoing signal or the incoming signal.

20. A non-transitoiy computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: one or more instructions that, when executed by one or more processors of a first device, cause tlie first device to: detect a collision between an outgoing signal from the first device to a second device and an incoming signal from the second device to the first device; drop the outgoing signal or the incoming signal in accordance with comparing signaling protocol information of the outgoing signal and signaling protocol information of the incoming signal; and communicate with the second device using the other of the outgoing signal or the incoming signal.0097-5722PCT 48

Images