Abstract: Various arrangements are presented for managing coexistence of a global navigation satellite system (GNSS) receiver with a radio access technology (RAT) transceiver. A coexistence manager may receive an indication of a characteristic of a RAT transceiver for a scheduled operating event. Based on the characteristic of the RAT transceiver for the operating event, the coexistence manager may select a space vehicle of a GNSS to use for a location determination by the GNSS receiver. The GNSS receiver may then receive a signal from the space vehicle of the GNSS during the operating event of the RAT transceiver. Location determination using the signal received from the space vehicle received during the operating event of the RAT transceiver may then occur.

Abstract: Systems and methodologies are described herein that facilitate a decentralized structure for managing multi-radio coexistence for a mobile device and/or other suitable device(s). As described herein, a coexistence manager (CxM) and/or other suitable means can be implemented in connection with a set of radios (or other transceivers) in order to manage conflicts between events corresponding to the radios. Functionality can be divided such that the CxM operates on the control plane and handles configuration and long-term operations such as registration, sleep mode management, interaction with upper layers, etc., while the respective radios operate on the data plane and handle short-term radio event management operations based on incoming notifications or event requests. For instance, radios can identify conflicts between requested external events and internally associated events and accordingly provide responses that allow or disallow the external events on an absolute basis or a conditional basis (e.g.

Abstract: Techniques for performing radio coexistence management to control operation of multiple radios to achieve good performance are described. In one design, an entity (e.g., a coexistence manager or a radio controller) may receive inputs from one or more radios among multiple radios operating concurrently. An input from a radio may indicate a planned operating state or planned activity of the radio in an upcoming time interval. The entity may determine controls for at least one radio based on the received inputs and a database of performance versus operating states to mitigate interference caused or observed by each of the at least one radio. The control for a radio may indicate a selected operating state or selected setting for at least one configurable parameter for the radio in the upcoming interval. The entity may send the controls to the at least one radio. Each radio may operate in accordance with its control.

Abstract: Techniques for performing radio coexistence management are described. In an aspect, operation of multiple radios may be controlled using a database of interference-related information, which may be indicative of interference between different radios operating concurrently. In one design, an entity may obtain planned operating states of multiple radios in an upcoming interval. The entity may determine the performance of one or more radios based on the planned operating states of the radios and the database, which may store information on performance versus operating states for different combinations of radios. The entity may select at least one new operating state for at least one radio based on the determined performance and the database to achieve good performance. The entity may send the at least one new operating state to the at least one radio. Each radio may operate in accordance with its new operating state (if any) or its planned operating state.

Abstract: Systems and methodologies are described herein that facilitate an asynchronous bus architecture for multi-radio coexistence associated with a wireless device. As described herein, a system of buses operating in an asynchronous manner, combined with optional on-chip and/or other supplemental buses, can be utilized to couple respective radios and/or other related endpoints to a coexistence management platform, thereby facilitating management of coexistence between multiple radios in a unified and scalable manner. As further described herein, communication between a coexistence manager and its respective managed endpoints can be facilitated through the use of a single bus or multiple buses that can be switched and/or otherwise operate in a concurrent manner to facilitate expedited conveyance of radio event notifications and their corresponding responses.

Abstract: Techniques for performing fractional system selection by a wireless device are described. The wireless device may have at least one application that is active and a plurality of radios that are available for use. The wireless device may perform fractional system selection and map different portions of an application to different radios. In one design, the wireless device may determine a mapping of different fractions of the application to different radios based on the requirements of the application, capabilities of the radios, interference between the radios, etc. The wireless device may map a first fraction of the application to a first radio and may map a second fraction of the application to a second radio. The wireless device may exchange (e.g., send or receive) data for the first fraction of the application via the first radio and may exchange data for the second fraction of the application via the second radio.

Abstract: Techniques for selecting radios and mapping applications to radios on a wireless device are described. The wireless network may have at least one application that is active and a plurality of radios that are available for use. In one design, the wireless device determines requirements of the at least one application, which may be related to throughput, latency, jitter, etc. The wireless device selects at least one radio among the plurality of radios based on the requirements of the at least one application and possibly other factors. The wireless device determines a mapping of the at least one application to the at least one radio based on the requirements of the at least one application, the performance of the at least one radio, and/or other factors. The wireless device maps the at least one application to the at least one radio based on the mapping.

Abstract: Systems and methodologies are described herein that facilitate a synchronous bus architecture for multi-radio coexistence associated with a wireless device. As described herein, a system of buses operating in a synchronous manner, combined with optional on-chip and/or other supplemental buses, can be utilized to couple respective radios and/or other related endpoints to a coexistence management platform, thereby facilitating management of coexistence between multiple radios in a unified and scalable manner. As further described herein, communication between a coexistence manager and its respective managed endpoints can be facilitated through the use of a single bus or multiple buses (e.g., external buses, on-chip and/or other internal buses, etc.) that can operate concurrently and/or in an otherwise cooperative manner to facilitate expedited conveyance of radio event notifications and their corresponding responses.

Abstract: A method of wireless communication includes identifying a first radio operating in a first mode and a second radio operating in a second mode defined within one device. The first radio and the second radio operate on a same radio access technology (RAT) and also operate on a same band. The method also includes altering a communication time of the first radio and/or the second radio to reduce interference.

Abstract: Techniques for supporting communication by a wireless device having a set of radios and supporting a set of applications are described. In an aspect, radio selection may be performed based on interference information and additional information to obtain good performance. In one design, a plurality of radios available for use on the wireless device may be identified. Interference information indicative of interference between the plurality of radios may be obtained, e.g., from an interference database or a converted interference database. Additional information used for radio selection may also be obtained and may include information for communication profiles, communication preferences, application requirements, radio capabilities, etc. At least one radio may be selected for use for communication from among the plurality of radios based on the interference information and the additional information.

Abstract: Techniques for performing fractional system selection by a wireless device are described. The wireless device may have at least one application that is active and a plurality of radios that are available for use. The wireless device may perform fractional system selection and map different portions of an application to different radios. In one design, the wireless device may determine a mapping of different fractions of the application to different radios based on the requirements of the application, capabilities of the radios, interference between the radios, etc. The wireless device may map a first fraction of the application to a first radio and may map a second fraction of the application to a second radio. The wireless device may exchange (e.g., send or receive) data for the first fraction of the application via the first radio and may exchange data for the second fraction of the application via the second radio.

Abstract: Techniques for selecting radios and mapping applications to radios on a wireless device are described. The wireless network may have at least one application that is active and a plurality of radios that are available for use. In one design, the wireless device determines requirements of the at least one application, which may be related to throughput, latency, jitter, etc. The wireless device selects at least one radio among the plurality of radios based on the requirements of the at least one application and possibly other factors. The wireless device determines a mapping of the at least one application to the at least one radio based on the requirements of the at least one application, the performance of the at least one radio, and/or other factors. The wireless device maps the at least one application to the at least one radio based on the mapping.

Abstract: Techniques for supporting a plurality of radios on a wireless device with a limited number of antennas are described. In one design, at least one radio may be selected from among the plurality of radios on the wireless device. Measurements for a plurality of antennas may be obtained. In one design, the measurements may be for pair-wise isolation for different pairs of antennas and/or joint isolation for different sets of at least three antennas. The isolation measurements may be used to determine correlation between antennas. The measurements may be obtained a priori and stored, or periodically, or when triggered by an event. At least one antenna may be selected for the at least one radio from among the plurality of antennas based on the measurements. The at least one radio may be connected to the at least one antenna.

Abstract: Techniques for supporting a plurality of radios on a wireless device with a limited number of antennas are described. In one design, at least one radio may be selected from among the plurality of radios on the wireless device. At least one antenna may be selected for the at least one radio from among a plurality of antennas, e.g., based on a configurable mapping of the plurality of radios to the plurality of antennas. One or more antennas may be shared between radios to reduce the number of antennas. The at least one radio may be connected to the at least one antenna, e.g., via a switchplexer. Antenna selection may be performed dynamically (e.g., when the at least one radio becomes active, or when a change in performance of the at least one radio is required) such that good performance can be obtained.

Abstract: Techniques for supporting a plurality of radios on a wireless device with a limited number of antennas are described. In one design, at least one radio may be selected from among the plurality of radios on the wireless device. At least one performance metric may be determined and may include a performance metric related to isolation between antennas, or correlation between antennas, or throughput, or link capacity, or interference, or power consumption of the wireless device, or received signal quality at the wireless device. In one design, an objective function may be determined based on the at least one performance metric. At least one antenna may be selected for the at least one radio from among a plurality of antennas based on the at least one performance metric, e.g., based on the objective function. The at least one radio may be connected to the at least one antenna.

Abstract: Techniques for supporting communication by a wireless device having a set of radios and supporting a set of applications are described. In an aspect, radio selection may be performed based on interference information and additional information to obtain good performance. In one design, a plurality of radios available for use on the wireless device may be identified. Interference information indicative of interference between the plurality of radios may be obtained, e.g., from an interference database or a converted interference database. Additional information used for radio selection may also be obtained and may include information for communication profiles, communication preferences, application requirements, radio capabilities, etc. At least one radio may be selected for use for communication from among the plurality of radios based on the interference information and the additional information.

Abstract: Systems and methodologies are described herein that facilitate a synchronous bus architecture for multi-radio coexistence associated with a wireless device. As described herein, a system of buses operating in a synchronous manner, combined with optional on-chip and/or other supplemental buses, can be utilized to couple respective radios and/or other related endpoints to a coexistence management platform, thereby facilitating management of coexistence between multiple radios in a unified and scalable manner. As further described herein, communication between a coexistence manager and its respective managed endpoints can be facilitated through the use of a single bus or multiple buses (e.g., external buses, on-chip and/or other internal buses, etc.) that can operate concurrently and/or in an otherwise cooperative manner to facilitate expedited conveyance of radio event notifications and their corresponding responses.

Abstract: Systems and methodologies are described herein that facilitate an asynchronous bus architecture for multi-radio coexistence associated with a wireless device. As described herein, a system of buses operating in an asynchronous manner, combined with optional on-chip and/or other supplemental buses, can be utilized to couple respective radios and/or other related endpoints to a coexistence management platform, thereby facilitating management of coexistence between multiple radios in a unified and scalable manner. As further described herein, communication between a coexistence manager and its respective managed endpoints can be facilitated through the use of a single bus or multiple buses that can be switched and/or otherwise operate in a concurrent manner to facilitate expedited conveyance of radio event notifications and their corresponding responses.

Abstract: Systems and methodologies are described herein that facilitate a centralized structure for managing multi-radio coexistence for a mobile device and/or other suitable device(s). As described herein, a control plane coexistence manager (CxM) entity and/or a data plane CxM entity can be implemented to directly interact with a set of associated transceivers (e.g., radios, etc.) in order to manage conflicts between events corresponding to the transceivers. Further, CxM operation can be divided between the control and data planes such that the control plane handles configuration and long-term operations such as radio registration, sleep mode management, long-term event resolution, interaction with upper layers, etc., while the data plane handles short-term operations with respect to radio event management based on incoming notifications or event requests.

Abstract: Techniques for performing radio coexistence management are described. In an aspect, operation of multiple radios may be controlled using a database of interference-related information, which may be indicative of interference between different radios operating concurrently. In one design, an entity may obtain planned operating states of multiple radios in an upcoming interval. The entity may determine the performance of one or more radios based on the planned operating states of the radios and the database, which may store information on performance versus operating states for different combinations of radios. The entity may select at least one new operating state for at least one radio based on the determined performance and the database to achieve good performance. The entity may send the at least one new operating state to the at least one radio. Each radio may operate in accordance with its new operating state (if any) or its planned operating state.