TWI467939B - Methods and apparatus for coexistence of wireless subsystems in a wireless communication device - Google Patents

Description

Method and apparatus for coexistence of wireless subsystems in a wireless communication device

The described embodiments are largely related to wireless communication and, more specifically, to facilitating coexistence in devices between wireless subsystems in a wireless communication device.

Many modern wireless communication devices include multiple wireless subsystems, which may also be referred to herein as radios. Multiple radios can be used by a wireless communication device to simultaneously communicate via a variety of wireless communication technologies. In many cases, the wireless communication technology used by the device uses channel bands that can interfere with each other. In such cases, energy from the frequency band used by one technique may leak into the frequency band used by another technique. This energy leakage raises the noise floor and causes a problem called "de-sense." In many cases, sensitivity degradation can have a negative impact on the use of certain channel bands, and in severe situations, can cause certain channel bands to become unusable. Therefore, interference that can cause deterioration in sensitivity can cause problems in coexistence in devices using multiple radios of different wireless communication technologies.

A particularly cumbersome sensitivity deterioration problem can result in a scenario in which a radio transmits transmissions via a first wireless communication technology known as an aggressor wireless communication technology or an aggressor technology, while another radio is referred to as a victim wireless communication technology or The second wireless communication technology of the victim technology receives the data. Receiving data transmitted by the victim's technology can be transmitted to the intruder, especially if the radio using the intruder technology uses relatively high transmission power. Under the circumstances. In this regard, interference caused by the intruder's technology transmission may result in a received packet error of the radio using the victim technology receiver, or even the desired signal may not be fully received. For example, the transmission of a cellular signal by a first radio on a device while the second radio on the device receives a Bluetooth (WLAN) or Wireless Local Area Network (WLAN) signal may cause the second radio to fail to receive the desired Signals, which cause errors, and in some cases lead to interrupted connections.

Methods and apparatus are described for mitigating interference between multiple wireless subsystems of a wireless communication device. A host processor acquires configurations of a plurality of wireless subsystems and evaluates whether there is potential or actual coexistence interference between two or more of the wireless subsystems. The host processor provides configuration information and link quality reporting parameters to at least two wireless subsystems, and obtains a link quality report from the at least two wireless subsystems. When the link quality of at least one of the wireless subsystems fails to meet a set of link quality conditions, the host processor adjusts data requirements of an application communicating via one or more of the wireless subsystems, and/or Adjusting radio frequency operating conditions of one or more of the wireless subsystems to mitigate interference between the wireless subsystems.

This [invention] is provided merely for the purpose of providing an overview of some example embodiments in order to provide a basic understanding of some aspects of the invention. Therefore, it is to be understood that the example embodiments described above are merely illustrative and are not to be construed as limiting the scope or spirit of the invention in any manner. Other embodiments, aspects, and advantages of the invention will be apparent from the description of the accompanying drawings.

102‧‧‧LTE band 40

104‧‧‧LTE band 7

106‧‧2402-2480MHz band

108‧‧‧2400-2483.5MHz band

200‧‧‧Wireless communication device

210‧‧‧Processing Circuit

212‧‧‧ processor

214‧‧‧ memory

216‧‧‧Coexistence Situation Manager

218‧‧‧First radio

220‧‧‧second radio

222‧‧‧ interface

224‧‧‧First Radio Coexistence Management Controller

226‧‧‧Second Radio Coexistence Management Controller

300‧‧‧Architecture

302‧‧‧Host

304‧‧‧Hive Radio

306‧‧‧GNSS radio

308‧‧‧Bluetooth (BT)/Wi-Fi combo radio

310‧‧‧Coexistence Situation Manager

312‧‧‧Application

314‧‧‧Hive Radio Manager

316‧‧‧GNSS Radio Manager

318‧‧‧BT Radio Manager

320‧‧‧Wi-Fi Radio Manager

322‧‧‧ Instant Coexistence Manager

324‧‧‧ radio measurement

326‧‧‧ Instant interface

328‧‧‧ Instant Coexistence Manager

330‧‧‧ Instant Coexistence Manager

332‧‧‧ Radio measurement

338‧‧‧Non-instant interface/interface

400‧‧‧ system

402‧‧‧Wireless communication device

404‧‧‧Base Station

406‧‧‧Industrial, Scientific and Medical (ISM) Band Network

408‧‧‧ device

1000‧‧‧block diagram

1002‧‧‧Host processor

1004‧‧‧Application

1006‧‧‧Host Coexistence Manager

1008‧‧‧Wireless Manager

1010‧‧‧Wireless Subsystem

1012‧‧‧Wireless Coexistence Manager

1014‧‧‧Wireless circuits

1016‧‧‧Host interface

1018‧‧‧ Radio Frequency (RF) Signal

1100‧‧‧ representative method

1200‧‧‧ State diagram

1202‧‧‧ "No wireless coexistence" status

1204‧‧‧"Wireless Coexistence" Status

1300‧‧‧Table

1400‧‧‧Table

1500‧‧‧Table

1600‧‧‧Table

1700‧‧‧Table

1800‧‧‧Table

1900‧‧‧Table

Representative method for mitigating interference between wireless subsystems 1010 of wireless communication device 402

The described embodiments and their advantages are best understood by reference to the following description of the accompanying drawings. The figures are not necessarily to scale, and are in no way limited to the scope of the described embodiments. Any changes in the form and details of the example.

Figure 1 illustrates an example of adjacent channel interference that may be handled by some example embodiments.

2 illustrates a block diagram of a wireless communication device in accordance with some example embodiments.

3 illustrates an architecture for facilitating coexistence in devices between radios, in accordance with some example embodiments.

4 illustrates an example system in which some example embodiments may be implemented to facilitate coexistence in devices between radios.

5 illustrates a flow diagram according to an example method that may be performed by a wireless communication device for facilitating coexistence in a device between radios, in accordance with some example embodiments.

6 illustrates a flow diagram according to an example method that may be performed by a processor of a wireless communication device for facilitating coexistence in a device between radios, in accordance with some example embodiments.

7 illustrates a flow diagram according to another example method that may be performed by a processor of a wireless communication device for facilitating coexistence in a device between radios, in accordance with some example embodiments.

8 illustrates a flow diagram according to an example method that may be performed by a radio for facilitating coexistence in a device between radios, in accordance with some example embodiments.

9 illustrates a flow diagram according to another example method that may be performed by a radio for facilitating coexistence in a device between radios, in accordance with some example embodiments.

Figure 10 illustrates a representative block diagram of a set of components in a wireless communication device in accordance with some embodiments.

11 illustrates a representative method that may be performed by components of a wireless communication device to mitigate interference of wireless radio frequency signals between a plurality of wireless subsystems of a wireless communication device, in accordance with some embodiments.

FIG. 12 illustrates a state diagram 1200 that may be applied to wireless subsystem 1010 in wireless communication device 402, in accordance with some embodiments.

13 illustrates a table that summarizes a set of messages that a host processor can send to two different wireless subsystems of a wireless communication device when transitioning from a "no wireless coexistence" state to a "wireless coexistence" state 1204, in accordance with some embodiments. .

14 and 15 illustrate a plurality of tables that summarize a set of actions that a host processor can take to mitigate interference between wireless subsystems of a wireless communication device, in accordance with some embodiments.

16 and 17 illustrate a plurality of tables that may be employed based on one or more events to mitigate interference between wireless subsystems in a wireless communication device, in accordance with some embodiments. The action.

18 and FIG. 19 illustrate a plurality of tables that the WiFi-BT wireless subsystem of the wireless communication device can take based on one or more events to mitigate between wireless subsystems in the wireless communication device, in accordance with some embodiments. Interference action.

20 illustrates a representative method that may be performed by components of a wireless communication device to mitigate interference of wireless radio frequency signals between a plurality of wireless subsystems of a wireless communication device, in accordance with some embodiments.

Methods and apparatus are disclosed for mitigating interference between a plurality of wireless subsystems in a wireless communication device. Since the RF energy transmitted by the first wireless subsystem is received by the second wireless subsystem (eg, due to overflow, higher order harmonics, intermodulation distortion, or other factors), interference between different wireless subsystems may result . A host processor in a wireless communication device coupled with a plurality of wireless subsystems can monitor operating conditions to detect configuration of the wireless subsystem, which can result in two of a plurality of wireless subsystems in the wireless communication device Potential or actual radio frequency interference between the two or more. The host processor can initiate a wireless coexistence operation of a subset of the plurality of wireless subsystems based on detecting the wireless interference condition. The host processor can provide information about the configuration of the wireless subsystem to one or more wireless subsystems, establish link quality reporting parameters for the plurality of wireless subsystems, and obtain link quality from the plurality of wireless subsystems report. When the link quality of the first wireless subsystem fails to meet a set of link quality bars The host processor can provide one or more requests to the second wireless subsystem to adjust the settings to mitigate interference experienced by the first wireless subsystem. Representative settings to be adjusted may include transmission power level, transmission data rate, transmission time period, transmission frequency, data requirements of one or more applications, instant coding and/or streaming data rate, frequency hopping mask (frequency) Hopping mask), mode of operation, transmission timing, radio resource request, channel quality indicator report value, and/or buffer status report value. The first wireless subsystem and the second wireless subsystem can be interconnected by an instant messaging interface, and each of the wireless subsystems can provide information and/or requests to each other to facilitate interference mitigation. The wireless subsystem can adjust its own operations in response to one or more requests from the host processor and/or from another wireless subsystem in the wireless communication device. Modifications to the operations performed by the wireless subsystem may be conditioned by the operational state of the wireless subsystem and/or link quality conditions. In some embodiments, a wireless subsystem may have priority over data transmission and/or data reception compared to another wireless subsystem. In some embodiments, the wireless subsystem may prioritize its own transmission or reception subsequence to ensure stability during critical operations and/or to ensure transmission or reception of data or signaling messages during a particular procedure. The host processor can monitor whether one or more wireless subsystems comply with a request to perform one or more actions to mitigate interference, and the host processor can take when the wireless subsystem fails to honor one or more specific requests Additional actions to mitigate interference.

The wireless subsystem of the wireless communication device can include a transmitter and a receiver to provide a radio frequency formatted according to a wireless communication protocol (eg, according to a Wi-Fi wireless communication protocol, a Bluetooth wireless communication protocol, or a cellular wireless communication protocol) Signal processing of wireless signals. In some embodiments, the wireless subsystem may include components such as processors and/or dedicated digital signal processing (DSP) circuitry for implementing, for example, but not limited to, baseband signal processing, physical layer processing Data link layer processing, and/or other functional functionality; one or more digital to analog converters (DACs) for converting digital data to analog signals; one or more analog to digital converters (ADC), which is used to convert analog signals Digital data; radio frequency (RF) circuits (eg, one or more amplifiers, mixers, filters, phase-locked loops (PLLs), and/or oscillators); and/or other components. A wireless subsystem may be referred to herein as a radio and may include one or more components as described above.

Some example embodiments use different wireless communication technologies to handle coexistence issues in devices between radios. In this regard, a wireless communication device often includes multiple radios coexisting on the device, each of which can implement one or more different wireless communication technologies. For example, a cellular radio, such as a Long Term Evolution (LTE) radio, can coexist on a device with one or more connectivity radios, such as a Bluetooth radio, a WLAN (eg, Wi-Fi) radio, and/or the like. . In embodiments including Wi-Fi radios, Wi-Fi radios may implement the American Institute of Electrical and Electronics Engineers (IEEE) 802.11 technology, such as one or more of the following: IEEE 802.11a; IEEE 802.11b; IEEE 802.11 g; IEEE 802.11-2007; IEEE 802.11n; IEEE 802.11-2012; IEEE 802.11ac; or other existing or future developed IEEE 802.11 technology. Connectivity radios can use the Industrial, Scientific, and Medical (ISM) band. For example, Bluetooth can operate in the 2.4 GHz ISM band, while WLAN radios can operate in the 2.4 GHz and/or 5 GHz ISM bands. The cellular radio and/or connectivity radio (S) can further coexist with Global Navigation Satellite System (GNSS) radios that can operate in the 1.6 GHz band, such as Global Positioning System (GPS) radios, such as Global Positioning System (GPS) radios, GLONASS radio, and / or other GNSS radios.

Simultaneous operation of multiple radios on a wireless communication device can cause interference between the radios. In this regard, when a radio receives data via the victim technology, transmissions transmitted by one of the intrusor techniques can cause interference. In such cases, the aggressor technology transmission may inhibit data reception via the victim technology, which may result in errors in the received data or, in extreme cases, even the victim technology receiver may not receive the desired signal at all. This radio frequency (RF) interference can be caused by several side effects caused by simultaneous radio operation on the device.

For example, RF interference can be caused by adjacent channel interference (ACI), in which transmission energy overflows into adjacent frequency bands. Figure 1 illustrates an example of an ACI that can be processed by some example embodiments. In this regard, one or more cellular bands may be adjacent to an ISM band that may be used by a connectivity radio. In the example of FIG. 1, LTE band 40 102 using time division duplexing (TDD) can operate in the 2300-2400 MHz band, while using frequency division duplex (FDD) LTE for uplink (UL) communication. Band 7 104 can operate in the 2500-2570 MHz band. The LTE bands 102 and 104 can function as an aggressor band such that transmissions via such bands can interfere with reception via connectivity radios operating in the adjacent 2400 GHz ISM band. For example, as illustrated in FIG. 1, since the transmission energy from the LTE bands 102 and 104 can overflow into the bands 106 and 108 and can degrade the Bluetooth and Wi-Fi wireless inductance, potentially interfering with the Bluetooth and The data reception by the Wi-Fi radio, so the Bluetooth radio operating in the 2402-2480 MHz band 106 and the Wi-Fi radio operating in the 2400-2483.5 MHz band 108 can become adjacent channels caused by the LTE bands 102 and 104. Disturbed interferers.

As another example, intermodulation distortion can result in RF interference that can be compromised by radio reception. In this regard, harmonics can be generated when two or more transmission frequencies are "mixed" with each other due to non-linearity. For example, the cellular band 5 and/or 8 can be mixed with the 2.4 GHz ISM band transmission to degrade the GNSS receive band sensitivity. As yet another example, RF interference can be generated by harmonic distortion, which can be generated by a single transmission frequency attributable to nonlinearity in harmonic distortion.

For example, when the device communicates via a cellular communication with a low power communication technology (such as an IEEE 802.15 wireless personal area network (PAN) communication technology (eg, Bluetooth and/or other wireless PAN communication technology) or may, for example, utilize ISM WLAN technology for frequency bands) When communicating simultaneously, cellular transmissions prevent data reception via low power technologies. Some example embodiments facilitate coexistence in devices between wireless communication technologies by mitigating interference conditions in such devices.

Several example embodiments described herein may be mitigated by mitigating such RF interference conditions The effect is to promote coexistence in the device between the radios. In this regard, some example embodiments provide architectures and corresponding methods, apparatus, and computer program products for facilitating coexistence in devices between radios. Rather, some example embodiments provide an architecture in which a host processor can be configured to define for two or more radios (eg, a cellular radio, a connectivity radio, that can be implemented on a wireless communication device, The principle of coexistence of GNSS radios and/or the like. The coexistence principle of some example embodiments may define the priority between radios given the context of the current usage context so that one radio may take precedence over another radio based on the context of the given usage context. The host processor can provide the coexistence principle to the radio via an interface between the host processor and the radio.

The radios of these example embodiments may be configured to exchange status information via a separate interface between the radios. The interface between the radios can be a higher speed interface that facilitates the instant exchange of status information between the radios. The status information may, for example, indicate an interference condition experienced by the radio, an operational status information indicating whether the radio is transmitting or receiving data during a given time period, and/or the like. Thus, status information that can change frequently and/or require low latency communication (e.g., instant) can be exchanged between the radios via an interface that facilitates relatively high speed communication between the radios. In this regard, some example embodiments will be able to split the information used by the radio to make decisions for controlling radio operation to mitigate interference in the device into non-instantaneous information and co-located radios that are not relatively frequently changed, such as the principle of coexistence. Status information that changes frequently over time. The coexistence principle and/or other non-instant information that may be changed infrequently may be communicated between the host processor and the radio via a lower speed interface and/or a shared interface through which other information may be conveyed, without blocking the higher speed between the radios. Direct interface.

A radio in accordance with some example embodiments may control radio operation using status information received from another radio in accordance with a coexistence principle provided by a host processor. In this regard, the radio can learn the conditions experienced by the co-located radio and/or the activity being performed based on the status information, and can use this cognition to determine whether to coexist at a given time. The principle is to modify the radio operation to mitigate interference with co-located radios. Thus, for example, an aggressor radio such as a cellular radio can learn from status information whether a victim radio, such as a Bluetooth radio, is receiving data at a given time, and if the victim radio is receiving data at a given time and based on The coexistence principle has a defined higher priority, and the aggressor radio can take actions such as deducting transmission power to mitigate interference with data reception by the victim radio. However, if the victim radio is not receiving data at a given time, the aggressor radio may know based on the status information that it can transmit data at the point in time without regard to the victim radio, even if the victim radio is based on the coexistence principle. It is also true that it has a higher priority.

Reference is now made to Fig. 2, which illustrates a block diagram of a wireless communication device 200, in accordance with some example embodiments. Wireless communication device 200 can be any device that includes two or more co-located radios that enable the device to communicate via a variety of wireless communication technologies. By way of non-limiting example, wireless communication device 200 can be a mobile telephone, a tablet computing device, a laptop, or other computing device that can include multiple radios. It will be appreciated that the components, devices or elements described below in FIG. 2 and described with respect to FIG. 2 may not be mandatory, and thus some components, devices or elements may be omitted in certain embodiments. Additionally, some embodiments may include additional or different components, devices or elements in addition to the components, devices or elements described with respect to FIG. 2 and described with respect to FIG.

In some example embodiments, wireless communication device 200 may include processing circuitry 210 that may be configured to perform the acts in accordance with one or more example embodiments disclosed herein. In this regard, the processing circuit 210 can be configured to perform one or more of the functions and/or control the performance of the wireless communication device 200 in accordance with various example embodiments, and thus can be provided for performing in accordance with various example embodiments. A functional component of the wireless communication device 200. Processing circuitry 210 may be configured to perform data processing, application execution, and/or other processing and management services in accordance with one or more example embodiments. In some embodiments, the wireless communication device 200, or a portion or component thereof, such as the processing circuit 210, can include one or more wafers or one or Multiple wafer sets. Thus, in some cases, processing circuitry 210 and/or one or more additional components of wireless communication device 200 can be configured to implement an embodiment on a single wafer or wafer set.

In some example embodiments, processing circuit 210 may include processor 212, and may further include memory 214 in some embodiments, such as the embodiment illustrated in FIG. The processing circuit 210 can communicate with the coexistence context manager 216 and two or more radios (including the first radio 218 and the second radio 220) that can be implemented on the wireless communication device 200, or otherwise control the coexistence context management And 216 and the two or more radios.

Processor 212 can be embodied in a variety of forms. For example, processor 212 can be embodied as various hardware-based processing components, such as a microprocessor, coprocessor, controller, or include, for example, an ASIC (Special Application Integrated Circuit), FPGA (Field) Various other computing or processing devices of the integrated circuit of the programmable gate array, some combination thereof or the like. The processor 212 of some example embodiments may be a host processor configured to function to control or otherwise facilitate two or more devices, such as the first radio 218 and the second radio 220. The host of the radio operation. In some example embodiments, processor 212 may be an application processor. Although processor 212 is illustrated as a single processor, it should be appreciated that processor 212 can include a plurality of processors. The plurality of processors can be in operative communication with each other and can be configured in common to perform one or more of the functionality of the wireless communication device 200 as described herein. In some example embodiments, processor 212 may be configured to execute instructions that may be stored in memory 214 or otherwise accessible by processor 212. Thus, whether configured by hardware or by a combination of hardware and software, processor 212 can perform operations in accordance with various embodiments while being configured accordingly.

In some example embodiments, memory 214 may include one or more memory devices. Memory 214 can include fixed and/or removable memory devices. In some embodiments, memory 214 can provide stable power that can store computer program instructions executable by processor 212. Brain readable storage media. In this regard, memory 214 can be configured to store information, materials, applications, instructions, and/or the like for enabling wireless communication device 200 to perform various functions in accordance with one or more example embodiments. In some embodiments, memory 214 can be coupled to one of processor 212, coexistence context manager 216, first radio 218, or second radio 220 via a bus for communicating information between components of wireless communication device 200. Or more than one communication.

The wireless communication device 200 can further include a coexistence context manager 216 that can be embodied as various components, such as circuitry, hardware, and computer readable programs that can be stored by a processing device (eg, processor 212) A computer program product of a computer readable medium (eg, memory 214), or some combination thereof. In some embodiments, processor 212 (or processing circuitry 210) may include or otherwise control coexistence context manager 216. As will be further described below, the coexistence context manager 216 can be configured to define coexistence principles for two or more radios on the wireless communication device 200, such as the first radio 218 and the second radio 220. And the coexistence principle can be provided to the radios for implementation.

As noted, the wireless communication device 200 can include a plurality of co-located radios. Two such radios - first radio 218 and second radio 220 - are illustrated by way of example in FIG. However, it should be appreciated that in some example embodiments, wireless communication device 200 may include one or more other radios. The radios implemented on the wireless communication device 200 can each implement any respective wireless communication technology such that two or more different wireless communication technologies can be implemented on the wireless communication device 200. For example, in some example embodiments, one or more of the radios on the wireless communication device 200, such as one or more of the first radio 218 or the second radio 220, may implement cellular communication technologies, such as long term evolution (LTE) cellular communication technology, Global Mobile Telecommunications System (UMTS) cellular communication technology, Global System for Mobile Communications (GSM) cellular communication technology, code division multiple access (CDMA) cellular communication technology, or CDMA 2000 cellular Communication technology, and / or its class Like. As a further example, in some example embodiments, one or more of the radios on the wireless communication device 200, such as one or more of the first radio 218 or the second radio 220, may be implemented such as Bluetooth, Purple Peak ( Zigbee), and/or other wireless personal area network (PAN) technologies; and/or connectivity radios for communication technologies of Wi-Fi and/or other wireless local area network (WLAN) communication technologies. In some example embodiments in which one or more of the first radio 218 or the second radio 220 are connectivity radios, the connectivity radio can implement wireless communication techniques using the ISM band. As yet another example, the wireless communication system 200 of some example embodiments may include a GNSS radio. However, it should be appreciated that the foregoing example radio technology is provided by way of example and not limitation, as various example embodiments support coexistence in devices between any two (or more) radios using different wireless communication technologies.

Interface 222 can be used to interface with two or more radios on wireless communication device 200, such as first radio 218 and second radio 220. The interface 222 can be separated from the interface between the processor 212 and the first radio 218 and the second radio 220. Interface 222 may be a higher speed interface than the interface between the radio and processor 212, thereby providing low latency (e.g., microseconds) to allow for immediate state information to be communicated between the radios. The interface 222 of some example embodiments may be an interface dedicated to exchanging information between radios that may not be used to convey information to or from non-radio components of the wireless communication device 200. In some example embodiments, interface 222 may be a direct interface that links first radio 218 to second radio 220 (and potentially one or more other radios). In some example embodiments, interface 222 may be a wireless coexistence interface (WCI), such as a WCI-2 interface, a WCI-1 interface, or other types of WCI. However, it should be appreciated that the WCI interface type is only one example of an interface that can be used to facilitate communication of status information between radios, and may be used in addition to or in place of the WCI interface, in accordance with some example embodiments. Any suitable interface that accepts two or more radios to support the exchange of status information between the radios.

In some example embodiments, the radio can be implemented on the wireless communication device 200 Includes separate coexistence management controllers. For example, the first radio coexistence management controller 224 can be implemented on the first radio 218 and the second radio coexistence management controller 226 can be implemented on the second radio 220. The coexistence management controller (eg, the first radio coexistence management controller 224 and the second radio coexistence management controller 226) may be embodied as various components, such as circuits, hardware, inclusions that may be implemented on the radio, and that may be implemented on the radio A computer program product, or a combination thereof, of computer readable program instructions stored on a computer readable medium, executed by a processing device.

The coexistence context manager 216 can be configured to define a coexistence principle for radios implemented on the wireless communication device 200, such as the first radio 218 and the second radio 220. The coexistence principle may, for example, define priorities between device radios such as cellular, GNSS, Bluetooth, Wi-Fi, and/or the like. In this regard, the coexistence context manager 216 can maintain a "global view" of priorities for various radios. The coexistence principle can be defined based on the current usage context of the wireless communication device 200. For example, when the user of the cellular phone is playing a cellular call, the usage status of the Bluetooth headset is used, and the user can perform the active session through the cellular connection. And implement different coexistence principles. Thus, the coexistence priority based on the usage context context in accordance with some example embodiments may change relatively slowly in a non-instant manner over time in response to an event trigger.

The coexistence context manager 216 can be further configured to push the coexistence principle down to the device radio via an interface between the processor 212 and the device radio. The interface between the processor 212 and the first radio 218 and the second radio 220 can be a non-instant interface. The coexistence principle to the communication of the radio can be mainly triggered by events. In this regard, the coexistence principle may change in response to an event trigger due to the usage context of the device changing over time (such as in response to user activity).

Implementation and enforcement of the coexistence principle may be performed by the coexistence management controller on the radio based on coordination between the radios via interface 222. In this regard, coexistence management control The controller (eg, the first radio coexistence management controller 224 and the second radio coexistence management controller 226) can be configured to perform measurements and exchange status information between the radios via the interface 222. As will be further described below, the status information may include an indication of an interference condition experienced by the radio, operational status information of the radio, and/or may be used by the coexistence management controller to determine whether to modify the radio operation according to the coexistence principle at a given time. Other information to mitigate interference with another radio.

Coexistence management controllers on the radio, such as first radio coexistence management controller 224 and second radio coexistence management controller 226, may be based on coexistence principles defined by coexistence context manager 216 and based on states that may be provided by co-located radios One or more of the information or measurements that can be made by the radio, performing an immediate action to control the radio operation. In this regard, the coexistence management controller can determine whether to take corrective action in accordance with the coexistence principle to mitigate interference with the co-located radio based on status information that can be measured by the radio and/or can be provided by the co-located radio.

Accordingly, it should be appreciated that some example embodiments will be made available by a coexistence management controller, such as first radio coexistence management controller 224 and second radio coexistence management controller 226, for controlling radio operation to mitigate interference in the device. The information of the decision is divided into non-instant information that does not change relatively frequently, such as the principle of coexistence, and real-time status information of the co-located radio that can change frequently with time. The processor 212 can communicate the coexistence principle and/or other non-instant messaging that may be changed very often via a lower speed interface and/or a shared interface (eg, a shared bus) through which other information can be communicated between device components. To the first radio 218 and the second radio 220. Instant state information for the radio may be communicated via interface 222, which may provide lower latency for communicating status information that may be relatively frequent (eg, instantaneous) between the radios, thereby allowing for inter-radio coordination. Since non-instant messaging can be provided to the radio via another interface, the non-instant messaging to device radio interface 222 deployment does not block the interface 222 or otherwise delay the communication of the instantaneous status information between the radios.

A coexistence management controller implemented on the radio, such as the first radio coexistence management controller 224 and the second radio coexistence management controller 226, may use any suitable technique to control radio operation when it is determined to be appropriate according to the coexistence principle Corrective action is taken to mitigate interference with co-located radios. In this regard, the coexistence management controller can use one or more hardware-based technologies and/or one or more software-based technologies for reducing interference.

As an example of a hardware-based technology that may be used, a coexistence management controller in accordance with some example embodiments may be configured to modify filtering applicable to transmission, such as by applying sharper filtering to the aggressor radio transmission. To reduce interference with adjacent channels of the victim's radio. As another example of a hardware-based technology that can be used by a coexistence management controller to mitigate interference, a coexistence management controller in accordance with some example embodiments can be configured to adjust an aggressor radio, such as by appropriately reducing or increasing linearity. The linearity of the RF components to mitigate the effects of intermodulation distortion and/or harmonic distortion on the victim's radio.

As an example of a software-based technology that may be used, a coexistence management controller in accordance with some example embodiments may be configured to apply time domain sharing techniques to mitigate interference effects. In this regard, if the victim radio has a lower priority than the aggressor radio, the coexistence management controller on the victim radio can avoid receiving data while the aggressor radio is transmitting. The coexistence management controller on the victim radio can learn the intruder radio at a given time based on status information that can be provided by the aggressor radio (e.g., via interface 222) and/or based on measurements that can be performed by the victim radio Whether it is being transferred. Similarly, if the victim radio is defined by the coexistence principle as having a higher priority than the aggressor radio during a particular time period and is receiving data during that time period, the coexistence management controller on the aggressor radio can avoid being disturbed The data is transmitted during the high priority reception period of the radio. The coexistence management controller on the aggressor radio may be aware of the victim radio during a time period based on status information that may be provided by the victim radio (eg, via interface 222) and/or based on measurements that may be performed by the aggressor radio Whether you are receiving data.

As another example of a software-based technology that may be used, a coexistence management controller in accordance with some example embodiments may be configured to apply frequency domain mutual exclusion techniques to mitigate interference with co-located radios. For example, if avoidance of reception on the affected channel is possible, the coexistence management controller on the victim's radio can be configured to avoid reception on the channel affected by the intruder's radio transmission. The coexistence management controller on the victim's radio can, for example, learn the channel affected by the intruder's radio transmission based on measurements that can be performed by the victim radio. The channel affected by the intruder transmission may, for example, be a channel within the frequency band used by the victim radio in the frequency band used by the aggressor radio. In some example embodiments, the coexistence management controller on the victim radio may be configured to apply frequency domain mutual exclusion techniques during the period in which the victim radio is known that the aggressor radio is transmitting. In this regard, the coexistence management controller on the victim radio can be informed based on status information that can be provided by the aggressor radio (eg, via interface 222) and/or based on measurements that can be performed by the victim radio Whether the time intruder radio is transmitting.

If transmission on the channel is avoided, the coexistence management controller on the aggressor radio can, for example, be configured to apply frequency domain mutual exclusion techniques to avoid on channels that can cause greater damage to the victim radio. Transmission. A channel that can cause greater damage to the victim radio can, for example, be a channel within the frequency band used by the aggressor radio in the frequency band used by the victim radio. In some example embodiments, the coexistence management controller on the aggressor radio may be configured to apply frequency domain mutual exclusion techniques during periods when the aggressor radio knows that the victim radio is receiving data. In this regard, the coexistence management controller on the aggressor radio can be informed at a given time based on status information that can be provided by the victim radio (eg, via interface 222) and/or based on measurements that can be performed by the aggressor radio Whether the victim radio is receiving.

As yet another example of a software-based technology that may be used, a coexistence management controller in accordance with some example embodiments may be configured to apply power domain mutex techniques to mitigate interference with co-located radios. For example, if there are multiple intruder radios on a device, The coexistence management controller on the first aggressor radio can avoid simultaneous transmission with the second aggressor radio to limit the total transmission power transmitted by the device and/or avoid intermodulation distortion, thereby mitigating the victim Radio interference. In this example, the coexistence principle may give the first aggressor radio a lower priority than the second aggressor radio and the victim radio, such that the coexistence management controller on the first aggressor radio may be degressed and Transmission is avoided, thereby allowing for transmission by the second aggressor radio and mitigating interference to the victim radio. The coexistence management controller on the first aggressor radio may determine to avoid transmission based on knowledge of whether the second aggressor radio is transmitting at a given time and/or whether the victim radio is receiving at a given time. In this aspect, the coexistence management controller on the first aggressor radio can be based on status information that can be provided by the second aggressor radio and/or by the victim radio (eg, via interface 222) and/or based on the first intrusion The radio performs measurements to determine if the second aggressor radio is transmitting and/or whether the victim radio is receiving during a given time period.

Another example of a power domain mutual exclusion technique that may be implemented by an intruder radio coexistence management controller is to defer the transmission power of the aggressor radio if the victim radio is receiving. In this regard, limiting the transmission power may reduce interference levels for reception by the victim radio. The coexistence management controller can know whether the victim radio is receiving during a given time period based on status information that can be provided by the victim radio (e.g., via interface 222) and/or based on measurements that can be performed by the aggressor radio.

3 illustrates an example architecture for facilitating coexistence in devices between radios, in accordance with some example embodiments. The architecture can include a host 302 that can be embodied as an application processor. Host 302 can be, for example, an embodiment of processor 212 and/or processing circuitry 210. The architecture may further include a plurality of radios. In the example of FIG. 3, the architecture may include a cellular radio 304, a GNSS radio 306, and a Bluetooth (BT)/Wi-Fi combined radio 308. However, it should be understood that the combinations of the radios illustrated in Figure 3 are illustrated by way of example and not limitation. In this regard, in some example embodiments, the cellular radio 304, GNSS may be omitted. One or more of line power 306, and BT/Wi-Fi combined radio 308. Moreover, in some example embodiments, the architecture may include one or more other radios in addition to or in place of the radios illustrated in FIG. 3 and described with respect to FIG. Additionally, the use of BT/Wi-Fi combo radios is exemplary, and some example embodiments may include standalone Bluetooth radios and/or standalone Wi-Fi radios. Accordingly, it should be appreciated that the architectural architecture and corresponding techniques illustrated in FIG. 3 and described with respect to FIG. 3 can be applied to any combination of radios that can be implemented on a wireless communication device with the necessary modifications.

The host 302 can include a coexistence context manager 310 that can be responsible for defining coexistence principles for device radios and providing such coexistence principles to the device radios. In this regard, coexistence context manager 310 can be, for example, one of the embodiments of coexistence context manager 216. One or more applications 312 can be executed on host 302. The coexistence context manager 310 can thus know the application 312 that is active at a given time. In some example embodiments, the coexistence context manager 310 may determine corresponding usage status information for the active application. In this regard, the coexistence context manager 310 can utilize the knowledge of the state of the application 312 to derive a global view of the device usage and determine the current usage context of the device. The coexistence context manager 310 can be configured to define a coexistence principle for device radio based at least in part on the context of the current usage context. The coexistence principle may include a definition of one or more priorities between device radios regarding the usage context context.

The coexistence context manager 310 can be configured to provide a defined coexistence principle to the device radio via respective radio manager media that can be implemented on the host 302. For example, the cellular radio manager 314 can facilitate communication between the coexistence context manager 310 and the cellular radio 304. The GNSS radio manager 316 can facilitate communication between the coexistence context manager 310 and the GNSS radio 306. The BT radio manager 318 can facilitate communication between the coexistence context manager 310 and the BT portion of the BT/Wi-Fi combined radio 308. The Wi-Fi radio manager 320 can facilitate communication between the coexistence context manager 310 and the Wi-Fi portion of the BT/Wi-Fi combined radio 308.

The coexistence context manager 310 can be configured to provide the coexistence principle to the radio using the interface 338 (e.g., via the respective radio manager media 314-320). Interface 338 can be a non-instant interface that can be used for large message transfers, and the interface can have a delay of milliseconds. In addition to the host 302 and the radios 304-308, the interface 338 of some example embodiments may also be shared by other components of the wireless communication device and may be used for other materials in addition to the coexistence principle and/or may be available to the host 302 and the radio 304- Communication of other information exchanged between 308.

The cellular radio 304 can include an instant coexistence manager (322) that can be configured to implement and enforce the coexistence principles defined by the coexistence context manager 310. In this regard, the instant coexistence manager 322 can be, for example, one of the embodiments of the coexistence management controller (eg, coexistence management controller 224 or coexistence management controller 226) described with respect to FIG. The instant coexistence manager 322 can be configured to use the radio measurements 324 that can be performed by the cellular radio 304 and/or the status information received from the GNSS radio 306 and/or from the BT/Wi-Fi combined radio 308 via the instant interface 326, Control decisions for controlling the cellular radio 304 are made in accordance with the coexistence principle to mitigate interference with the GNSS radio 306 and/or the BT/Wi-Fi combined radio 308.

The instant interface 326 can be an interface that provides low latency (such as microsecond delay) to allow instant state information to be communicated between the radios to facilitate the radio based on the coexistence principle defined and passed by the coexistence context manager 310. Coordination between. In some example embodiments, the instant interface 326 may be a WCI interface, such as a WCI-2 interface or a WCI-1 interface. The instant interface 326 of some example embodiments may be an interface dedicated to exchanging information between radios that may not be used to convey information to or from non-radio components.

The instant coexistence manager 322 can be further configured to provide status information of the cellular radio 304 to the GNSS radio 306 and/or to the BT/Wi-Fi combined radio 308 via the instant interface 326. The status information may include any information regarding the status of the cellular radio 304, which may be used by the GNSS radio 306 and/or by the BT/Wi-Fi combined radio 308. The radio operation control is determined in accordance with the coexistence principle defined by the coexistence context manager 310. For example, the status information can include operational status information indicating that the cellular radio 304 is receiving or transmitting data during one or more time periods. Additionally or alternatively, the status information may include an indication of an interference condition that may be experienced by the cellular radio 304, such as an interference condition that may be determined by the cellular radio 304 based on the radio measurement 324.

The GNSS radio 306 can include an instant coexistence manager 328 that can be configured to implement and enforce the coexistence principles defined by the coexistence context manager 310. In this regard, the instant coexistence manager 328 can be, for example, one of the embodiments of the coexistence management controller (eg, coexistence management controller 224 or coexistence management controller 226) described with respect to FIG. The instant coexistence manager 328 can, for example, be configured to use status information that can be measured by the GNSS radio 306 and/or received from the cellular radio 304 and/or from the BT/Wi-Fi combined radio 308 via the instant interface 326. Control decisions for controlling the GNSS radio 306 are made in accordance with the coexistence principle to mitigate interference with the cellular radio 304 and/or the BT/Wi-Fi combined radio 308.

The instant coexistence manager 328 can be further configured to provide status information of the GNSS radio 306 to the cellular radio 304 and/or to the BT/Wi-Fi combined radio 308 via the instant interface 326. The status information may include any information regarding the status of the GNSS radio 306, which may be used by the cellular radio 304 and/or by the BT/Wi-Fi combined radio 308 to determine radio operation in accordance with the coexistence principle defined by the coexistence context manager 310. control. For example, the status information can include operational status information indicating that the GNSS radio 306 is receiving or transmitting data during one or more time periods. Additionally or alternatively, the status information may include an indication of an interference condition that may be experienced by the GNSS radio 306, such as an interference condition that may be determined based on measurements that may be made by the GNSS radio 306.

The BT/Wi-Fi combined radio 308 can include an instant coexistence manager 330 that can be configured to implement and enforce the coexistence principles defined by the coexistence context manager 310. In this regard, the instant coexistence manager 330 can, for example, be a coexistence tube as described with respect to FIG. One embodiment of a controller (e.g., coexistence management controller 224 or coexistence management controller 226). The instant coexistence manager 330 can be configured to use radio measurements 332 that can be performed by the BT/Wi-Fi combined radio 308 and/or status information received from the cellular radio 304 and/or from the GNSS radio 306 via the instant interface 326, Control decisions for controlling the BT/Wi-Fi combined radio 308 are made in accordance with the coexistence principle to mitigate interference with the cellular radio 304 and/or the GNSS radio 306.

The instant coexistence manager 330 can be further configured to provide status information of the BT/Wi-Fi combined radio 308 to the cellular radio 304 and/or to the GNSS radio 306 via the instant interface 326. The status information may include any information regarding the status of the BT/Wi-Fi combined radio 308, which may be used by the cellular radio 304 and/or by the GNSS radio 306 to determine radio operation in accordance with the coexistence principles defined by the coexistence context manager 310. control. For example, the status information may include operational status information indicating that the BT/Wi-Fi combined radio 308 is receiving or transmitting data during one or more time periods. Additionally or alternatively, the status information may include an indication of an interference condition that may be experienced by the BT/Wi-Fi combined radio 308, such as an interference condition that may be determined by the BT/Wi-Fi combined radio 308 based on the radio measurement 332.

4 illustrates an example system 400 in which some example embodiments may be implemented to facilitate coexistence in devices between wireless communication technologies. System 400 can include a wireless communication device 402, which can be, for example, an embodiment of wireless communication device 200. The wireless communication device 402 can be configured to perform cellular communication that can be supported by the base station 402. For example, the wireless communication device 402 can be configured to communicate via the following technologies: Long Term Evolution (LTE) cellular communication technology, Global Mobile Telecommunications System (UMTS) cellular communication technology, Global System for Mobile Communications (GSM) cellular Communication technology, code division multiple access (CDMA) cellular communication technology, or CDMA 2000 cellular communication technology, and/or other cellular communication technologies. Wireless communication device 402 can be further configured to communicate via ISM band technology. Thus, for example, the wireless communication device 402 can be via the ISM band Network 406 is in wireless communication with device 408. For example, in an embodiment where the ISM band network 406 is a Bluetooth network, the device 408 can be a Bluetooth headset or other Bluetooth device that can interface with the wireless communication device.

In the context of system 400, various embodiments may be implemented on wireless communication device 402 to control the operation of cellular radio and/or ISM band radios on wireless communication device 402 to mitigate interference between device radios in accordance with coexistence principles. , thereby facilitating coexistence in devices between the cellular radio and the ISM band radio. However, it should be understood that system 400 is provided by way of example only. In this regard, as previously indicated, some example embodiments facilitate a radio coexistence scenario in a device other than a cellular and ISM band radio coexistence.

5 illustrates a flow diagram in accordance with an example method that may be performed by a wireless communication device for facilitating coexistence in a device between radios, in accordance with some example embodiments. In this regard, FIG. 5 illustrates operations that may be performed by the wireless communication device 200 and/or by the architecture illustrated in FIG. The operations illustrated in FIG. 5 and described with respect to FIG. 5 may, for example, be performed to facilitate radio coexistence in a device between a cellular radio and an ISM band radio, such as within the context of the system 400.

Operation 500 can include the coexistence context manager 216 defining a coexistence principle for the first radio 218 and the second radio 220. The coexistence principle may, for example, define a prioritization between the first radio 218 and the second radio 220. In some example embodiments, the coexistence principle may be defined based at least in part on the usage context context of the wireless communication device such that different coexistence principles may be defined for the first usage context context and the second usage context context.

Operation 510 can include the coexistence context manager 216 providing the coexistence principle to the first radio coexistence management controller 224 and the second radio management controller 226. The coexistence principle can be provided to the first radio 218 and the second radio 220 via an interface between the processor 210 and the radio.

The first radio 218 and/or the second radio 220 can exchange status information via the interface 222 to facilitate implementation of the coexistence principle by the first radio coexistence management controller 224 and the second radio coexistence management controller 226. Thus, for example, operation 520 can include the second radio 220 providing status information of the second radio 220 to the first radio 218 via the interface 222. The status information may, for example, include an indication of the interference conditions that may be experienced by the second radio 220. Additionally or alternatively, the status information may include operational status information indicating that the second radio 220 is receiving or transmitting data during one or more time periods. It should be appreciated that in addition to or instead of operation 520, the method can also include the first radio 218 providing this status information to the second radio 220.

Operation 530 can include the first radio coexistence management controller 224 controlling the operation of the first radio 218 according to the coexistence principle using the status information received in operation 520 to mitigate interference with the second radio 220. Additionally or alternatively, operation 530 can include the first radio coexistence management controller 224 controlling the operation of the first radio 218 using measurements that can be made by the first radio 218. For example, if the first radio 218 is an aggressor radio such as a cellular radio and the second radio 220 is a victim radio such as a radio implementing an ISM band wireless communication technology, and the coexistence principle is defined in a given context The second radio 220 is prioritized over the first radio 218, and the first radio coexistence management controller 224 can control the transmission of data by the first radio 218 to mitigate interference with data reception by the second radio 220. In this regard, the first radio coexistence management controller 224 can use any hardware and/or software based techniques for mitigating interference, such as adjusting transmission filtering, adjusting the linearity of the RF components, time domain sharing techniques, frequency domains. Mutual exclusion techniques, power domain techniques, some combination thereof, or the like, to mitigate interference with reception by the second radio 220. However, it should be understood that other contexts are considered to be within the scope of the present invention, including that the first radio 218 is a victim radio; the second radio 220 is an aggressor radio; and the first radio 218 uses a different wireless communication than the cellular Technology; second radio 220 uses non-ISM band wireless communication technology; first radio 218 takes precedence over second none Line 220; coordinated with one or more other co-located radios; or some combination thereof.

It should be appreciated that in addition to or instead of operation 530, the method can also include the second radio coexistence management controller 226 controlling the operation of the second radio 220 in accordance with the coexistence principle. In this regard, the second radio coexistence management controller 226 can use status information of the first radio 218 that can be received via the interface 222 and/or can be measured by the second radio 220 to control the second radio 220 according to the coexistence principle. operating.

6 illustrates a flow diagram according to an example method that may be performed by a processor of a wireless communication device for facilitating coexistence in a device between radios, in accordance with some example embodiments. In this regard, FIG. 6 illustrates operations that may be performed, for example, by processing circuitry 210, processor 212, coexistence context manager 216, host 302, coexistence context manager 310, some combination thereof, or the like.

Operation 600 can include the processor defining a coexistence principle for the first radio 218 and the second radio 220. The coexistence principle can, for example, define one or more prioritizations between radios. It should be appreciated that in a device having three or more radios, operation 600 can include defining a coexistence principle including additional radios. Operation 610 can include the processor providing a coexistence principle to the first radio 218 and the second radio 220 via an interface between the processor and the radio. The coexistence principle configurable coexistence management controller on the radio (eg, first radio coexistence management controller 224, second radio coexistence management controller 226, instant coexistence manager 322, instant coexistence manager 328, instant coexistence manager 330 And/or the like, controlling the operation of the radio based at least in part on status information that can be exchanged between the radios.

7 illustrates a flow diagram according to another example method that may be performed by a processor of a wireless communication device for facilitating coexistence in devices between radios, in accordance with some example embodiments. In this regard, FIG. 7 illustrates an example method that can define a coexistence principle based, at least in part, on the current usage context of a wireless communication device. Processing circuit 210, processor 212. Coexistence context manager 216, host 302, coexistence context manager 310, some combination thereof, or the like may, for example, provide means for performing the operations illustrated in FIG. 7 and described with respect to FIG.

Operation 700 can include the processor determining a contextual usage context of the wireless communication device. The context of the usage context may be determined, for example, based at least in part on the usage status of one of the active applications (e.g., application 312) and/or one or more of the active applications on the device. Operation 710 can include the processor defining a coexistence principle for the first radio 218 and the second radio 220 based at least in part on the determined usage context context. The coexistence principle can, for example, define one or more prioritizations between radios. Thus, for example, given a context of the first usage status context, one radio may be prioritized, and given a second usage status context, another radio may be prioritized. It should be appreciated that in a device having three or more radios, operation 710 can include defining a coexistence principle including additional radios. Operation 720 can include the processor providing the coexistence principle to the first radio 218 and the second radio 220 via an interface between the processor and the radio. In this regard, operation 720 can correspond to operation 610 described above. Since the context of the device's usage changes over time, the method can return to operation 700 and the method can be repeated such that a new coexistence principle can be defined in response to changes in the context of the usage context.

8 illustrates a flow diagram in accordance with an example method that may be performed by a radio for facilitating coexistence in a device between radios, in accordance with some example embodiments. In this regard, FIG. 8 illustrates that it may be performed by the first radio 218, the second radio 220, the cellular radio 304, the GNSS radio 306, the BT/Wi-Fi combined radio 308, and/or other radios that may be implemented on the wireless communication device. Methods. Coexistence management controller (eg, first radio coexistence management controller 224, second radio coexistence management controller 226, instant coexistence manager 322, instant coexistence manager 328, instant coexistence manager 330, and/or the like) One of the operations described in FIG. 8 and described with respect to FIG. 8 may be provided, for example. Or multiple components.

Operation 800 can include a radio receiving a coexistence principle via an interface between the radio and a host processor, such as processor 212, host 302, or the like. The method can optionally further include an operation 810, the operation comprising: performing a radio measurement. The measurement may, for example, include performing measurements of the observed interference conditions, such as any observed errors in data reception, leakage from adjacent frequency bands, harmonics, and/or may be generated by operation of co-located radios And other signals or frequencies that can interfere with the operation of the radio. Operation 820 can include transmitting, by the radio, status information of the radio to the co-located radio via an interface between the radio and a co-located radio, such as interface 222 or interface 326. For example, the status information may include operational status information indicating that the radio is receiving or transmitting data during one or more time periods. In an embodiment that includes operation 810, the status information may additionally or alternatively include an indication of an interference condition experienced by the radio (as may be defined based on measurements that may be made by radio).

9 illustrates a flow diagram according to another example method that may be performed by a radio for facilitating coexistence in a device between radios, in accordance with some example embodiments. In this regard, FIG. 9 illustrates that it may be performed by the first radio 218, the second radio 220, the cellular radio 304, the GNSS radio 306, the BT/Wi-Fi combined radio 308, and/or other radios that may be implemented on the wireless communication device. Methods. Coexistence management controller (eg, first radio coexistence management controller 224, second radio coexistence management controller 226, instant coexistence manager 322, instant coexistence manager 328, instant coexistence manager 330, and/or the like) Means for performing one or more of the operations illustrated in FIG. 9 and described with respect to FIG. 9 may be provided, for example.

Operation 900 can include the radio receiving a coexistence principle via an interface between the radio and a host processor, such as processor 212, host 302, or the like. Operation 920 can include receiving, by the radio, status information of the co-located radio via an interface between the radio and a co-located radio, such as interface 222 or interface 326. therefore, For example, operation 920 can include the radio receiving status information that can be provided by the co-located radio based on operation 820 performed by the co-located radio.

Operation 930 can include the radio controlling the operation of the radio according to the coexistence principle using state information of the co-located radio to mitigate interference with the co-located radio. It should be appreciated that the radio may use any hardware and/or software based techniques for mitigating interference, such as adjusting transmission filtering, adjusting the linearity of RF components, time domain sharing techniques, frequency domain mutual exclusion techniques, power domain techniques, Some combination thereof or the like to mitigate interference with co-located radios.

Some embodiments disclosed herein provide architectures and corresponding methods, apparatus, and computer program products for facilitating coexistence in devices between radios. For example, some example embodiments facilitate coexistence between a cellular radio and a connectivity radio, such as a connectivity radio using the Industrial, Scientific, and Medical (ISM) band. Rather, some example embodiments provide an architecture in which a host processor can be configured to define coexistence principles for two or more radios that can be implemented on a wireless communication device. The coexistence principle of some example embodiments may define the priority between radios given the context of the current usage context so that one radio may take precedence over another radio based on the context of the given usage context. The host processor can provide the coexistence principle to the radio via an interface between the host processor and the radio.

The radio can be configured to exchange status information via a separate interface between the radios. The interface between the radios can be a higher speed interface that facilitates the exchange of real-time information between the radios. The status information may, for example, indicate an interference condition experienced by the radio, an operational status information indicating whether the radio is transmitting or receiving data during a given time period, and/or the like. In this regard, state information that can be changed frequently (e.g., instantaneously) can be exchanged between the radios via an interface that facilitates relatively high speed communication between the radios. In this regard, some example embodiments will be split into information, such as the principle of coexistence, that can be used by the radio to make decisions for controlling radio operations to mitigate interference in the device. Non-instant information that does not change relatively frequently and status information of co-located radios that can change frequently over time. The coexistence principle and/or other non-instant information that may be changed less frequently may be communicated between the host processor and the radio via a lower speed interface and/or a shared interface through which other information is communicated, without blocking the comparison between the radios. High speed, direct interface.

A radio in accordance with some example embodiments may control radio operation based on coexistence principles provided by a host processor using status information received from another radio. In this aspect, the radio can learn the conditions experienced by the co-located radio and/or the activities performed based on the status information, and can use this cognition to determine whether to modify the radio operation according to the coexistence principle at a given time to mitigate the common The interference of the located radio.

The management of the interference reduction can be divided into "instant" control based on "instant" information (for example, to handle rapidly changing operating conditions) and "non-instant" control based on "non-instant" information (for example, to handle slow changes) Operating conditions). A host processor (e.g., application processor 302) may be aware of "high level" priorities that may affect multiple wireless subsystems in wireless communication device 402. The host processor can be based on known high-level priorities (eg, signal transmission and/or reception of the wireless radio subsystem will take precedence over other wireless radio subsystems) and based on other "non-instant" information (eg, for various wireless subsystems) The configuration of the observations, and the "usage" of the multi-group applications that are active on the wireless communication device and communicating via different wireless subsystems, develop high-level principles and communicate the high-level principles to the wireless subsystem Each of them. Each wireless subsystem can instantly monitor its own radio frequency signals and receive instant information from other wireless subsystems in the wireless communication device via an instant messaging interface. A wireless subsystem may act to mitigate interference based on an instant measurement in response to a request or command from the host processor and/or in response to a request from another wireless subsystem. In some embodiments, the coexistence manager in the wireless subsystem can implement an interference mitigation strategy to adjust the transmission and/or reception properties of the radio frequency signals transmitted and/or received by the wireless subsystem. The coexistence manager in the wireless subsystem can be based on the following Controlling one or more of the wireless circuits included in the wireless subsystem: coexistence principles from the host processor, requests and/or commands from the host processor, measured radio frequency conditions from the wireless subsystem, provisioning Instant RF information from other wireless subsystems, and requests from other wireless subsystems. Representative RF information may include signal power, interference levels, error rates, packet errors, decoding errors, channels, bandwidth, frequency bands, and the like. Each wireless subsystem can be included in a separate integrated circuit device (wafer), or several wireless subsystems can be grouped together in a single integrated circuit device. In a representative embodiment, the wireless communication device includes a cellular wireless chip and a separate combined wireless local area network and wireless personal area network chip, such as a cellular LTE/3G chip and a WiFi-BT chip. Since different wafers can be clocked by different clock sources, the timing of each wafer can be different, and thus the instant interface between two different wireless subsystems can benefit from calibration information to enable reception by a wafer. The message from the other wafer conveys the alignment. The host processor can provide calibration information to each wireless subsystem to align its instant messaging interface communications. A coexistence manager in the host processor can monitor the configuration of multiple wireless subsystems, the use of applications communicated via multiple wireless subsystems, and the energy performance reports provided by multiple wireless subsystems (eg, links) Quality, performance characteristics, etc.) to determine when to transition one or more of the wireless subsystems from a "no wireless coexistence" state to a "wireless coexistence" state. When in the "wireless coexistence" state, the wireless subsystem can perform a set of coexistence algorithms to mitigate interference from signals transmitted and/or received by the wireless subsystem. As further described herein, events monitored by the host processor and/or the wireless subsystem may result in various types taken and/or requested and/or commanded by the host processor and/or by one or more of the wireless subsystems. action. The host processor can establish a set of link quality monitoring conditions for each wireless subsystem, and when the link quality of the wireless subsystem fails to meet a set of link quality conditions, the host processor can take actions to mitigate the impact on the Interference that affects the performance of the link quality of the wireless subsystem. Another wireless subsystem can be considered an "intruder" for the "disturbed" wireless subsystem that experiences link quality failure. (It should be noted that link quality failures may be indicated relative to the master The machine processor communicates one or more threshold performance changes without the need to refer to a radio link failure. The host processor may request and/or command actions to reduce interference generated by the "intruder" wireless subsystem, for example, by direct (eg, by changing RF transmission parameters) and/or indirectly (eg, by Any of a number of different radio frequency properties are changed by changing data requirements and/or requesting radio resources. The host processor can also request and/or command wireless by the "disturbed" by, for example, changing the radio frequency properties for signal reception and/or data requirements for communication via the "disturbed" wireless subsystem. The actions performed by the subsystem. Each wireless subsystem can react to requests and/or commands to change its information based on information available to the wireless subsystem (eg, operating conditions, link quality, active programs, operational status, state changes, etc.) Radio frequency properties and / or data requirements. A wireless subsystem may seek to balance the mitigation of interference to other wireless subsystems relative to the link quality and stability of the wireless subsystem itself, for example, to ensure that it is performed by the wireless subsystem and/or via the wireless subsystem. The stability of the program and the normal completion. Each wireless subsystem monitors its own conditions on-the-fly (or near-instantaneous) and has more readily available information about its own conditions. The wireless subsystem can notify the host processor (or respond to a request from the host processor) whether the wireless subsystem complies with the request and/or command to adjust the radio frequency transmission and/or reception. The wireless subsystem can ignore and/or delay changes to radio frequency transmission and/or reception to ensure that radio link failures for communications by the wireless subsystem are not affected, for example, when the radio link has high path loss, wireless The subsystem can continue to use higher transmission power levels to ensure the use of the radio link. The wireless subsystem may also ignore and/or delay transmission power reduction (or other radio frequency changes), for example, in critical processing states or procedures (such as Radio Resource Control (RRC) or Random Access Channel (RACH) procedures, or Link stability is maintained during other signaling procedures that can affect the radio link. Additional details of methods and apparatus for mitigating interference in a wireless communication device including multiple wireless subsystems are further described below.

FIG. 10 illustrates generation of a set of components in a wireless communication device 402 in accordance with some embodiments. Tabular block diagram 1000. In some embodiments, the set of components illustrated in FIG. 10 can include the architecture 300 illustrated in FIG. The wireless communication device 402 can include a host processor 1002 and a plurality of wireless subsystems 1010. The host processor 1002 can be coupled to the plurality of wireless subsystems 1010 via one or more host interfaces 1016. The representative host interface 1016 can include the non-instant interface 338 described above that couples a plurality of radio managers 314-320 operating in the host processor 1002 to a plurality of wireless subsystems (radio) 304- 308. In some embodiments, the host processor can perform operations of an application processor in the wireless communication device 402, for example, executing one or more applications 1004 thereon. The application 1004 can generate a signaling command and a data packet to communicate via one or more wireless networks using one or more of the wireless subsystems 1010. Application 1004 can also receive a signaling command, for example, from host coexistence manager 1006 or other control functions operating in host processor 1002, and retrieve data packets received via one or more wireless subsystems 1010. The host coexistence manager 1006 in the host processor 1002 can obtain the configuration of one or more wireless subsystems 1010 and can evaluate whether the configurations indicate potential between two or more of the wireless subsystems 1010. Or actual coexistence interference conditions. In some embodiments, host coexistence manager 1006 can determine modifications to one or more parameters of one or more of wireless subsystems 1010 to mitigate interference between the wireless subsystems. A host coexistence manager 1006 that cooperates with one or more wireless managers 1008 operable in host processor 1002 can provide configuration parameters to one or more wireless subsystems 1010 for monitoring link quality and/or management Interference between each of the wireless subsystems 1010. One or more wireless coexistence managers 1012 operable in the plurality of wireless subsystems 1010 can receive information, requests, and/or commands from the host coexistence manager 1006, for example, via the wireless manager 1008, and can adjust their respective Operating parameters of the wireless circuitry 1014 in the wireless subsystem 1010 to balance the link quality of communications via the wireless subsystems 1010. In some embodiments, the host processor defines a coexistence principle that is provided to the wireless subsystem 1010 that includes coexistence parameters. The host interface 1016 between the wireless subsystem 1010 and the host processor 1002 can be relative to the wireless sub The wireless circuit 1014 of system 1010 transmits and changes the operational conditions of the received radio frequency (RF) signal 1018 to a "non-immediate" operation. In some embodiments, the wireless subsystem 1010 is interconnected (or interconnected with each other) via one or more "on-the-fly" interfaces that are available for wireless RF received by the wireless subsystem 1010. Signal 1018 provides "instant" information about operational status and/or link quality conditions to each of wireless subsystems 1010. In some embodiments, the wireless subsystem 1010 monitors the wireless RF signals 1018 received by the wireless subsystem 1010, for example, based on link quality parameters provided by the host processor 1002, and may provide information about link quality. It is provided to the host processor 1002 non-instantly and "on the fly" to other wireless subsystems 1010. Thus, the wireless subsystem 1010 can exchange instant radio frequency signals and configuration information between each other, and can provide "overview" information to the host processor non-instantaneously. Each of the wireless subsystems 1010 can take various actions to mitigate interference from the wireless RF signal 1018 transmitted by the wireless subsystem 1010 that can be received by other wireless subsystems 1010 in the wireless communication device 402. The wireless subsystem 1010 can receive modified wireless from the host processor 1002 (eg, from the host coexistence manager 1006 via the wireless manager 1008) and from another wireless subsystem 1010 (eg, from another wireless coexistence manager 1012 therein) Request for RF signal 1018. The receiving wireless subsystem 1010 may determine that a suitable set of actions is to be taken, the set of appropriate actions for the wireless subsystem to balance the link quality, performance, and/or stability of the communication of the wireless RF signal 1018, and to mitigate wireless communications The other wireless subsystems 1010 of device 402 are subject to interference.

11 illustrates a representative method 1100 that may be performed by components of wireless communication device 402 (eg, by host processor 1002) to mitigate wireless communication between wireless subsystems 1010 of wireless communication device 402, in accordance with some embodiments. Interference from RF signal 1018. In step 1102, the host processor 1002 can detect a wireless coexistence scenario in which the configuration of two or more wireless subsystems 1010 can potentially or actually be caused to be communicated from the wireless subsystems. Wireless RF interference of wireless RF signal 1018. The wireless coexistence context can include a set of wireless sub-elements for a plurality of wireless subsystems 1010 of the wireless communication device 402 System configuration. As described above, the wireless RF signal 1018 transmitted by a wireless subsystem 1010 can be due, for example, to higher order harmonics, due to insufficient antenna isolation (and/or impractical), due to wireless RF reception. The improved sensitivity of the device and/or other wireless RF operating conditions interfere with the wireless RF signal 1018 received by the other wireless subsystem 1010. In step 1104, host processor 1002 can provide information regarding the configuration of one or more of wireless subsystems 1010 to other wireless subsystems of wireless subsystems 1010 of wireless communication device 402. In a representative embodiment, wireless communication device 402 includes two different wireless subsystems 1010, and host processor 1002 provides configuration information to each wireless subsystem 1010 to notify wireless communication devices 402 of the wireless subsystems. The configuration corresponding to other wireless subsystems 1010. In some embodiments, the configuration of the wireless subsystem 1010 can include one or more different wireless RF configuration parameters used by the wireless subsystem 1010, such as RF band, RF channel, RF bandwidth, FDD, and/or TDD. Configuration, frame format, and more. In some embodiments, the wireless subsystems 1010 are interconnected to one another by an instant messaging interface. In step 1106, host processor 1002 can provide calibration information for the instant messaging interface between wireless subsystems 1010. In a representative embodiment, the calibration information includes offset and/or jitter settings for messages communicated between the wireless subsystems 1010 via the instant messaging interface. In some embodiments, the calibration information provided to each wireless subsystem 1010 is specifically directed to receiving signals from another particular wireless subsystem 1010 via an instant messaging interface. In step 1108, host processor 1002 configures a link quality report by one or more wireless subsystems 1010, for example, by providing link quality reporting parameters to one or more wireless subsystems 1010. In some embodiments, the link quality reporting parameters determine, at least in part, under what conditions the wireless subsystem 1010 measures link quality and reports the link quality to the host processor 1002 and/or another wireless subsystem 1010. In step 1110, host processor 1002 determines if the link quality of at least one of the wireless subsystems fails to meet a set of link quality conditions. Method 1100 ends when the wireless subsystems all satisfy the set of link quality conditions. When at least one of the wireless subsystems fails to meet the set of link quality conditions, the method is in step 112 Continuing, and the host processor 1002 adjusts the data requirements of one or more applications of the wireless communication device 402. In some embodiments, host processor 1002 determines that wireless RF signal 1018 of first wireless subsystem 1010 interferes with reception of wireless RF signal 1018 by second wireless subsystem 1010, and host processor 1002 adjusts via the first wireless sub- System 1010 communicates data requirements for one or more applications of the data packet, for example, to reduce the transmission level and/or transmission time period of wireless RF signal 1018 transmitted by first wireless subsystem 1010. The host processor 1002 can also adjust the data requirements for receiving one or more applications of the data packet via the second wireless subsystem 1010. In step 1114, the host processor 1002 provides the request and/or command to one or more of the wireless subsystems 1010 to adjust the transmission and/or receive operational states to mitigate between the wireless subsystems 1010 of the wireless communication device 402. interference. In some embodiments, the request and/or command may determine at which frequency, frequency band, transmission power level, and/or time period the transmission or reception of the wireless RF signal 1018 by the wireless subsystem 1010 occurs.

FIG. 12 illustrates a state diagram 1200 that may be applied to wireless subsystem 1010 in wireless communication device 402. When the wireless communication device 402 is powered on, each wireless subsystem 1010 can be initialized to a "no wireless coexistence" state 1202, in which transmission and/or reception of the wireless RF signal 1018 by the particular wireless subsystem 1010 can be based upon The particular wireless subsystem 1010 operates as required. Each wireless subsystem 1010 can provide configuration information (eg, initial configuration and updates as configuration changes) to its host processor 1002. The host processor 1002 can monitor a set of operational configurations of the various wireless subsystems 1010 to determine if a coexistence context can exist, for example, whether a potential or actual interference condition can exist between the two of the wireless subsystems 1010. The host processor 1002 can enable the wireless subsystem 1010 by transmitting one or more commands to the wireless subsystem 1010 to transition the state of the wireless subsystem 1010 from the "no wireless coexistence" state 1202 to the "wireless coexistence" state 1204. Coexistence status. The transition is indicated by a state change 1208 in FIG. When in the "wireless coexistence" state 1204, the wireless subsystem 1010 can be from the host processor 1002 and/or another wireless subsystem The system 1010 receives requests and/or commands that may seek to mitigate interference between the wireless subsystems 1010. The wireless subsystem 1010 can adjust its wireless operational state (as indicated by transition 1214) based on receiving one or more requests and/or commands from the host processor 1002 and/or another wireless subsystem 1010. The wireless subsystem 1010 can also provide information about its configuration to the host processor 1002 whenever a configuration change occurs, as indicated by transition 1212. The wireless subsystem 1010 can remain in the "wireless coexistence" state 1204 until a command is provided from the host processor 1002 to disable wireless coexistence, and then the wireless subsystem 1010 can transition to a "no wireless coexistence" state 1202, such as a state transition. Directed by 1210. When in the "wireless coexistence" state 1204, the wireless subsystem 1010 can communicate with the host processor 1002 and another wireless subsystem 1010 to monitor wireless RF link quality and/or performance and adjust operational status and/or parameters. In order to mitigate interference from the wireless RF signal 1018 between the wireless subsystems. The wireless subsystem 1010 can balance its wireless RF performance with respect to the wireless RF performance requirements of one or more other wireless subsystems 1010 in the wireless communication device 402. The host processor 402 and the set of wireless subsystems 1010 can operate in conjunction to perform a wireless coexistence algorithm to balance the overall performance of the wireless subsystem 1010 of the wireless communication device 402.

13 illustrates a table 1300 that summarizes a set of messages that the host processor 1002 can transmit to two different wireless subsystems 1010 of the wireless communication device 402 when transitioning from the "no wireless coexistence" state 1202 to the "wireless coexistence" state 1204 ( For example, request and / or command). In a representative embodiment, wireless communication device 402 includes: a first wireless subsystem 1010 that operates in accordance with a wireless cellular protocol; and a wireless personal area network (eg, a WiFi protocol) (eg, a WiFi protocol) A second wireless subsystem 1010 that operates in conjunction with a WPAN) protocol (eg, a Bluetooth (BT) protocol). In some embodiments, wireless communication device 402 includes a cellular wireless subsystem 1010 and a combined WiFi-BT wireless subsystem 1010. The host processor 1002 can obtain the configuration from the cellular wireless subsystem 1010 and the WiFi-BT wireless subsystem 1010, and based on the acquired configuration, the host processor 1002 can determine the cellular configuration of the wireless subsystem 1010 and the WiFi- Specific combinations of BT configurations can cause wireless RF coexistence issues, such as For example, interference between the wireless subsystems 1010. The host processor 1002 can send one or more messages to each of the cellular wireless subsystem 1010 and the WiFi-BT wireless subsystem 1010 to initialize the wireless subsystem 1010 into respective "wireless coexistence" states 1204. . The host processor 1002 can direct the cellular radio subsystem 1010 to transition to the "wireless coexistence" state 1204 and can send a message to configure the parameters of the "wireless coexistence" state 1204 of the cellular radio subsystem 1010. The configuration parameters may include a set of thresholds for "wireless coexistence" state 1204, and a set of transmit power limits. In some embodiments, the threshold includes RF link quality, RF link path loss, and values of one or more of a number of radio bearers. In some embodiments, the cellular radio subsystem 1010 can use thresholds to determine when and/or whether to adjust the transmission and/or receive operational status of the cellular radio subsystem 1010. The host processor 1002 can also provide calibration parameters that couple the cellular wireless subsystem 1010 to the instant messaging interface of the WiFi-BT wireless subsystem 1010. In some embodiments, the calibration parameters may include offset and/or jitter settings for receipt by the cellular radio subsystem 1010 via the instant messaging interface. The host processor 1002 can also communicate a set of parameters that can be used for the configuration of the cellular link quality monitoring and reporting by the cellular radio subsystem 1010.

The host processor 1002 can also configure the WiFi-BT wireless subsystem 1010 to enter the "wireless coexistence" state 1204. The host processor 1002 can communicate information regarding the configuration of the cellular wireless subsystem 1010 to the WiFi-BT wireless subsystem 1010. In some embodiments, the cellular radio subsystem 1010 configuration may include frequency bands, channels, bandwidths, FDD and/or TDD configurations, uplink/downlink configurations, used by the cellular radio subsystem 1010, Frame format, and / or special sub-frame format. In some embodiments, the WiFi-BT wireless subsystem 1010 can use the provided information about the configuration of the cellular wireless subsystem 1010 to modify the transmission and/or reception of the wireless RF signal 1018 in order to mitigate cellular wireless Interference from subsystem 1010. The host processor 1002 can also provide calibration parameters that couple the cellular wireless subsystem 1010 to the instant messaging interface of the WiFi-BT wireless subsystem 1010. In some real In an embodiment, the calibration parameters may include offset and/or jitter settings for receipt by the WiFi-BT wireless subsystem 1010 via the instant messaging interface. The host processor 1002 can also communicate a set of parameters that can be used for monitoring by the WiFi-BT wireless subsystem 1010 and reporting the RF link quality of the WiFi and/or BT wireless RF link to the host processor 1002. state. The host processor 1002 can provide a BT adaptive frequency hopping (AFH) mask to the WiFi-BT wireless subsystem 1010, and in some embodiments, the BT AFH mask can be based on a particular configuration of the wireless cellular subsystem 1010 . For example, based on the knowledge of the configuration of the cellular radio subsystem 1010, the BT AFH mask can take into account the wireless interference of the wireless RF signal 1018.

14 illustrates a table 1400 that summarizes a set of actions that the host processor 1002 can take to mitigate interference between the wireless subsystems 1010 of the wireless communication device 402. Table 1400 summarizes the actions of host processor 1002 when cellular wireless subsystem 1010 is identified as an "intruder" and WiFi-BT wireless subsystem 1010 is identified as a "disturbed." The host processor 1002 can receive information regarding the link quality of the wireless RF link of the WiFi-BT wireless subsystem 1010, for example, when the WiFi-BT wireless subsystem 1010 is in the "wireless coexistence" state 1204. The host processor 1002 can determine, for example, when the link quality of the wireless RF link of the WiFi-BT wireless subsystem 1010 fails to satisfy a measurement based on the measurement report provided by the WiFi-BT wireless subsystem 1010 to the host processor 1002. Group link quality conditions. In an embodiment, the link quality metric of the RF wireless link of the WiFi-BT wireless subsystem 1010 may fall below the link quality threshold. When the WiFi-BT wireless subsystem 1010 link quality fails to meet the set of link quality conditions, the host processor 1002 can take action to improve link quality, for example, by mitigating the "intruder" cellular radio subsystem The wireless RF signal 1018 of 1010 interferes with the "disturbed" WiFi-BT wireless subsystem 1010. The host processor 1002 can adjust the communication via the wireless RF link by, for example, reducing the rate of the current codec of the one or more applications by reducing the streaming rate used by the one or more applications. Or data requirements for multiple applications. The host processor 1002 can reduce the transmission by the cellular radio subsystem 1010 by reducing the codec rate and/or the streaming rate. The data request, and/or reduce the data requirements received by the WiFi-BT wireless subsystem 1010. In some embodiments, host processor 1002 can adjust the data rate of one or more applications that communicate data packets on cellular wireless subsystem 1010, thereby reducing the active data rate of cellular wireless subsystem 1010. In some embodiments, the reduction in data rate of the cellular radio subsystem 1010 may reduce the amount of power, the transmission frequency, the amount of active transmission time period, or may result in wireless RF signal 1018 from the cellular radio subsystem 1010 to WiFi. - Other wireless RF transmission properties of the BT wireless subsystem 1010 that are less disturbing. The host processor 1002 can directly or indirectly reduce the cellular radio subsystem, for example, by throttling uplink (UL) data traffic provided by the one or more applications to the cellular radio subsystem 1010. The amount of cellular UL data traffic transmitted by 1010. In some embodiments, host processor 1002 communicates one or more requests to cellular radio subsystem 1010 to adjust UL transmissions, eg, changing uplink data rate, UL transmission time period, UL radio resource request The number, and/or the value communicated by the cellular radio subsystem to the buffer status report corresponding to the access network subsystem. In some embodiments, host processor 1002 communicates one or more requests to cellular wireless subsystem 1010 to adjust UL transmission power, for example, to reduce transmission power levels and/or active transmission power time periods. In some embodiments, host processor 1002 configures wireless cellular subsystem 1010 to periodically report link quality metric information to host processor 1002, for example, to provide wireless to cellular wireless subsystem 1010. Monitoring of the performance of the RF link. When the quality of the wireless cellular UL link changes, the host processor 1002 can adjust the UL transmission (eg, transmission power level) by (directly or indirectly) the link quality report provided in the cellular radio system 1010. The information responded. Thus, host processor 1002 can monitor the impact of the adjustment of cellular wireless subsystem 1010 to enable the performance of the wireless RF link of WiFi-BT wireless subsystem 1010 and the performance of the wireless RF link of cellular wireless subsystem 1010. balance. The host processor 1002 can also monitor whether the cellular radio subsystem 1010 actually limits its UL transmission power in response to requests and/or commands from the host processor 1002. Host processor When determining that the cellular radio subsystem 1010 is actually limiting its UL transmission power, the host processor 1002 can configure the cellular radio subsystem 1010 to initiate periodic cellular radio link quality reporting to the host processor 1002. In order to monitor UL link quality when UL transmission power is limited. The host processor 1002 can adaptively adjust the UL transmit power of the cellular radio subsystem 1010 to balance the performance of the cellular radio subsystem 1010 RF wireless link with the performance of the WiFi-BT wireless subsystem 1010 RF wireless link. The host processor 1002 can also determine that the cellular radio subsystem does not limit the UL transmission power in response to requests and/or commands issued by the host processor 1002 to limit UL transmission power. In some embodiments, in response, host processor 1002 can adjust the data requirements of one or more applications (eg, as described above). The host processor 1002 can throttle the UL data traffic of the cellular radio subsystem 1010 and/or request the cellular radio subsystem to transmit a reduced Buffer Status Report (BSR) value, for example, to request fewer UL radio resources. To reduce the transmission of UL data. Each of the wireless subsystems 1010 of the wireless communication device 402 can communicate configuration information to the host processor 1002, and when the particular combination of the cellular wireless subsystem 1010 and the WiFi-BT wireless subsystem 1010 does not indicate a potential or In the actual wireless coexistence issue, the host processor 1002 can send a message to the cellular radio subsystem 1010 and the WiFi-BT radio subsystem 1010 to disable the "wireless coexistence" state 1204, and thereby return to "no wireless coexistence". State 1202.

15 illustrates a table 1500 that summarizes a set of actions that the host processor 1002 can take to mitigate interference between the wireless subsystems 1010 of the wireless communication device 402. Table 1500 summarizes the actions of host processor 1002 when WiFi-BT wireless subsystem 1010 is identified as an "intruder" and cellular wireless subsystem 1010 is identified as a "disturbed." The host processor 1002 can receive information regarding the link quality of the wireless RF link of the cellular radio subsystem 1010, for example, when the cellular radio subsystem 1010 is in the "wireless coexistence" state 1204. The host processor 1002 can determine the chain of wireless RF links of the cellular wireless subsystem 1010, for example, based on measurement reports provided by the cellular wireless subsystem 1010 to the host processor 1002. When the road quality fails to meet a set of link quality conditions. In an embodiment, the link quality metric of the RF radio link of the cellular radio subsystem 1010 may fall below the link quality threshold. When the cellular quality of the cellular radio subsystem 1010 fails to meet the set of link quality conditions, the host processor 1002 can take action to improve link quality, for example, by mitigating the WiFi-BT wireless subsystem from the "intruder" The 1010 wireless RF signal 1018 interferes with the "disturbed" cellular radio subsystem 1010. The host processor 1002 can adjust the communication via the wireless RF link by, for example, reducing the rate of the instant codec of the one or more applications by reducing the streaming rate used by the one or more applications. Or data requirements for multiple applications. By reducing the codec rate and/or the streaming rate, the host processor 1002 can reduce the data requirements for transmissions by the WiFi-BT wireless subsystem 1010 and/or reduce reception by the cellular radio subsystem 1010. Information requirements. In some embodiments, the host processor 1002 can adjust the data rate of one or more applications that communicate data packets on the WiFi-BT wireless subsystem 1010, thereby reducing the data rate of the WiFi-BT wireless subsystem 1010. . In some embodiments, the reduction in data rate of the WiFi-BT wireless subsystem 1010 may reduce the amount of power, the transmission frequency, the amount of active transmission time period, or may result in a wireless RF signal 1018 from the WiFi-BT wireless subsystem 1010. Other wireless RF transmission properties that are less disruptive to the cellular radio subsystem 1010. In some embodiments, host processor 1002 communicates one or more requests to WiFi-BT wireless subsystem 1010 to adjust transmission power, for example, to reduce transmission power levels and/or active transmission power time periods. In some embodiments, host processor 1002 requests the BT transceiver of WiFi-BT wireless subsystem 1010 to use a new (or adapted existing) AFH mask. In some embodiments, the host processor 1002 requests the WiFi transceiver of the WiFi-BT wireless subsystem 1010 to change the RF transceiver operation, for example, when operating in a peer-to-peer (P2P) or access point (AP) mode. Channel. In some embodiments, the host processor 1002 configures the WiFi-BT wireless subsystem 1010 to periodically report link quality metric information to the host processor 1002, for example, to provide a pair of WiFi-BT wireless subsystems 1010. Monitoring of the performance of the wireless RF link. When the quality of the wireless WiFi-BT link changes, the host processor 1002 can provide (directly or indirectly) the transmission (eg, transmission power level) to the link quality report provided in the WiFi-BT wireless system 1010. The information responded. Thus, host processor 1002 can monitor the impact of adjustments to WiFi-BT wireless subsystem 1010 in order to enable the performance of the wireless RF link of cellular wireless subsystem 1010 with the wireless RF link of WiFi-BT wireless subsystem 1010. Balance of performance. The host processor 1002 can also monitor whether the WiFi-BT wireless subsystem 1010 actually limits its transmission power in response to requests and/or commands from the host processor 1002. When the host processor 1002 determines that the WiFi-BT wireless subsystem 1010 actually limits its transmission power, the host processor 1002 can configure the WiFi-BT wireless subsystem 1010 to initiate periodic WiFi-BT to the host processor 1002. Link quality reporting to monitor link quality when transmission power is limited. The host processor 1002 can adaptively adjust the WiFi-BT wireless subsystem 1010 transmission power to balance the performance of the cellular radio subsystem 1010 RF wireless link with the performance of the WiFi-BT wireless subsystem 1010 RF wireless link. The host processor 1002 can also determine that the WiFi-BT wireless subsystem does not limit the transmission power in response to requests and/or commands issued by the host processor 1002 to limit transmission power. In some embodiments, in response, host processor 1002 can adjust data requirements for one or more applications communicating via a WiFi-BT wireless RF link (eg, as described above). The host processor 1002 can reduce the WiFi-BT data traffic of the WiFi-BT wireless subsystem 1010. When in the "Wireless Coexistence" state 1204, the WiFi-BT wireless subsystem 1010 can communicate configuration information to the host processor 1002. When the configuration of the WiFi-BT wireless subsystem 1010 is changed, for example, when the WiFi operation mode is changed from the "station" mode to the "same level" and/or "access point" mode, the host processor can request WiFi-BT wireless. The subsystem changes the channel used for WiFi transmission. Similarly, when the BT mode of operation changes from the "slave" mode to the "master" mode, the host processor 1002 can request the WiFi-BT wireless subsystem to be based on the time division duplex (TDD) configuration of the cellular radio subsystem 1010. Adjust the BT timing to align the transmission. Therefore, BT transmission can be scheduled to reduce HTD-based reception The interference received. Each of the wireless subsystems 1010 of the wireless communication device 402 can communicate configuration information to the host processor 1002, and when a particular combination of the cellular wireless subsystem 1010 and the WiFi-BT wireless subsystem 1010 does not indicate a potential Or the actual wireless coexistence issue, the host processor 1002 can send a message to the cellular wireless subsystem 1010 and the WiFi-BT wireless subsystem 1010 to disable the "wireless coexistence" state 1204, and thereby return to "no wireless" Coexistence state 1202.

16 illustrates a table 1600 that outlines that the cellular radio subsystem 1010 can be based on one or more events when the cellular radio subsystem 1010 is an "intruder" and the WiFi-BT wireless subsystem is a "disturbed". action. The cellular wireless subsystem 1010 can provide radio frequency (RF) configuration updates to the host processor 1002. The RF configuration changes include updates to the Radio Access Technology (RAT) used by the cellular radio subsystem 1010 (eg, following inter-RAT handover), for a set of in-use RF, TDD configurations, and/or Changes in RF transmission properties and thus other RF parameters to the wireless RF interference of the co-located WiFI-BT wireless subsystem 1010 may be affected. The cellular wireless subsystem 1010 can provide wireless configuration updates to the host processor 1002 in a "no wireless coexistence" state 1202 or a "wireless coexistence" state 1204. The host processor 1102 can send one or more messages to the cellular radio subsystem 1010 to enter the "wireless coexistence" state 1204. In response, the cellular radio subsystem 1010 can obtain from the host processor 1002 one or more configuration parameters to be used when in the "wireless coexistence" state 1204. The cellular radio subsystem 1010 can configure itself for monitoring and reporting link quality metrics to the host processor 1002. The cellular wireless subsystem 1010 can calibrate an instant messaging interface coupled to the WiFi-BT wireless subsystem 1010, for example, based on one or more calibration parameters (offset, jitter) provided by the host processor 1002. When in the "wireless coexistence" state 1204, the cellular radio subsystem 1010 can take into account receive priority ("RX priority") signals received from the WiFi-BT radio subsystem 1010 and/or the host processor 1002. In some embodiments, the "RX Priority" signal may indicate the priority received by the WiFi-BT wireless subsystem 1010 relative to the cellular radio subsystem 1010. In some embodiments, the "RX Priority" signal may indicate a time period in which reception by the WiFi-BT wireless subsystem 1010 is prioritized over the cellular wireless subsystem 1010. When in the "Wireless Coexistence" state 1204, the cellular radio subsystem 1010 can receive requests from the host processor 1002 and/or the WiFi-BT wireless subsystem 1010. The representative request may include a request to adjust the data rate, adjust the transmission power, start and/or stop the link quality report. The cellular radio subsystem 1010 can conditionally take certain actions in response to requests from the host processor 1002 and/or the WiFi-BT wireless subsystem 1010. Some of the actions performed by the cellular radio subsystem 1010 may depend on the link status and/or operational status of the cellular radio subsystem 1010. In some embodiments, the cellular radio subsystem 1010 can determine the link quality of one or more RF links used by the cellular radio subsystem 1010 and can be based on the link quality of the cellular radio subsystem 1010 and/or Or all but one of the requested actions and/or take no action requested. In some embodiments, the cellular radio subsystem 1010 can limit transmission power and/or limit UL transmission when UL link quality allows. In some embodiments, the cellular radio subsystem 1010 can compare the link quality, the link path loss value, and/or the number of active radio bearers to a set of thresholds to determine whether to adjust the UL transmit power bit. Approve and/or limit UL transmission. In some embodiments, when the path loss is less than a certain threshold (which may be provided by host processor 1002) and the number of active radio bearers is greater than another particular threshold (which may also be provided by host processor 1002), The cellular radio subsystem 1010 can adjust the UL transmission power level and/or limit the UL transmission when requested by the host processor 1002 and/or the WiFi-BT wireless subsystem 1010. The cellular radio subsystem 1010 can use the link quality, link path loss, and/or the number of active radio bearers to evaluate the performance of the cellular link in order to estimate the UL transmission properties (eg, transmission power level) Whether the change can affect UL performance. In some embodiments, the cellular radio subsystem 1010 can delay and/or reduce cellular UL data resource requests, for example, by changing values in one or more buffer status reports, and/or restrictions are provided to the The cellular wireless subsystem 1010 is connected to and/or associated with a cellular Scheduling request for the wireless access subsystem of the line network. The cellular radio subsystem 1010 can also monitor its own status and/or active procedures and can determine whether to fulfill the request to limit data and/or power based on the current status and/or based on the currently active procedure. The cellular radio subsystem 1010 may delay and/or reject changes to transmission power and/or data rate during radio resource control (RRC) state changes and/or during transmission or reception state changes of the cellular radio subsystem 1010. The cellular radio subsystem 1010 can try to ensure that its own connection is not interrupted and/or quality is compromised by taking any wireless coexistence actions. The cellular radio subsystem 1010 may delay certain actions until after certain procedures are completed, for example, until the RRC and/or Tx/Rx state changes are completed. Based on the configuration by host processor 1002, cellular radio subsystem 1010 can measure, for example, based on one or more reporting events and/or based on requests for periodic reporting and report cellular to host processor 1002 Link quality metrics. The wireless cellular subsystem 1010 can provide information regarding cellular cellular subsystem 1010 status and/or cellular wireless subsystem 1010 activity to the WiFi-BT wireless subsystem 1010, for example, when the cellular state changes. Thus, the cellular radio subsystem 1010 can communicate information about its own configuration directly to the WiFi-BT wireless subsystem 1010. In some embodiments, the cellular radio subsystem 1010 can communicate transmission and/or reception timing information to the WiFi-BT wireless subsystem 1010. In some embodiments, the cellular wireless subsystem 1010 can communicate a transmission mode (eg, sleep, dynamic reception, idle) to the WiFi-BT wireless subsystem 1010. In some embodiments, the cellular radio subsystem 1010 can provide information regarding the "safe to receive" and/or "unsafe to receive" time periods to the WiFi-BT wireless subsystem 1010. The wireless cellular subsystem 1010 can be interconnected to the WiFi-BT wireless subsystem via an instant messaging interface. A representative interface is the WCI2 standardized interface, and the cellular radio subsystem 1010 can communicate one or more standard WCI2 messages to the WiFi-BT wireless subsystem 1010 via the WCI2 communication interface. Representative messages include Type 0 Tx/Rx status messages and Type 3 cellular activity messages. The additional message may include a vendor specific WCI2 message, for example, to notify the WiFi-BT prior to transmission of the cellular radio subsystem 1010. The message of line subsystem 1010. In some embodiments, the WiFi-BT wireless subsystem 1010 can use the information provided by the message to delay receipt of the WiFi and/or BT signals by the WiFi-BT wireless subsystem 1010, thereby avoiding the hive being transmitted by the cellular radio subsystem 1010. Simultaneous interference caused by transmission. The cellular radio subsystem 1010 can receive messages from the host processor 1002 to transition from the "wireless coexistence" state 1204 to the "no wireless coexistence" state 1202, and in response, the cellular radio subsystem 1010 can be reconfigured to host processing Link quality report for device 1002. For example, compared to the "no wireless coexistence" state 1202, when in the "wireless coexistence" state 1204, link quality measurement and reporting can occur more frequently.

17 illustrates a table 1700 that summarizes the cellular radio subsystem 1010 based on one or more events when the WiFi-BT radio subsystem 1010 is an "intruder" and the cellular radio subsystem 1010 is a "disturbed". Take the action. The cellular wireless subsystem 1010 can provide radio frequency (RF) configuration updates to the host processor 1002. The RF configuration changes include updates to the Radio Access Technology (RAT) used by the cellular radio subsystem 1010 (eg, following inter-RAT handover), for a set of in-use RF, TDD configurations, and/or Changes in RF transmission properties and thus other RF parameters to the wireless RF interference of the co-located WiFI-BT wireless subsystem 1010 may be affected. The cellular wireless subsystem 1010 can provide wireless configuration updates to the host processor 1002 in a "no wireless coexistence" state 1202 or a "wireless coexistence" state 1204. The host processor 1102 can send one or more messages to the cellular radio subsystem 1010 to enter the "wireless coexistence" state 1204. In response, the cellular radio subsystem 1010 can obtain from the host processor 1002 one or more configuration parameters to be used when in the "wireless coexistence" state 1204. The cellular radio subsystem 1010 can configure itself for monitoring and reporting link quality metrics to the host processor 1002. The cellular wireless subsystem 1010 can calibrate an instant messaging interface coupled to the WiFi-BT wireless subsystem 1010, for example, based on one or more calibration parameters (offset, jitter) provided by the host processor 1002. Although in the "wireless coexistence" state 1204, the cellular radio subsystem 1010 can be self-hosted The processor 1002 and/or the WiFi-BT wireless subsystem 1010 receives the request. Representative requests may include receipt of delayed data, adjustment of channel quality indicator (CQI) report values, and requests to start, stop, and/or reconfigure link quality reports. The cellular wireless subsystem 1010 and the WiFi-BT wireless subsystem 1010 can be interconnected by an instant messaging interface (eg, a WCI2 interface). In some embodiments, the WiFi-BT wireless subsystem 1010 can provide a request to the cellular radio subsystem 1010, eg, a standard Type 0 Tx/Rx status message and/or a vendor specific request for delayed cellular reception to avoid interference. message. In some embodiments, the cellular radio subsystem 1010 can send a CQI report indicating one or more reduced CQI values to the wireless access of the cellular wireless network to which the cellular wireless subsystem is connected or associated. Subsystem. A bad CQI report can result in a lower probability that radio resources are allocated to the cellular radio subsystem 1010, and thus the cellular radio subsystem 1010 can be less likely to receive data during periods of overlap with interfering WiFi-BT transmissions. By adjusting the CQI report, the cellular radio subsystem 1010 can indirectly affect the cellular downlink transmission to the wireless communication device 402, for example, in response to information provided from the WiFi-BT wireless subsystem 1010 via the instant interface. Avoid receiving during certain time periods. The cellular radio subsystem 1010 can provide status change information to the host processor 1002, for example, based on certain activities taken, procedures in progress, and/or link quality measurements by the cellular radio subsystem 1010. And/or WiFi-BT wireless subsystem 1010. In some embodiments, the cellular radio subsystem 1010 can receive critical activities (eg, cell search procedures, random access channel (RACH) procedures, radio resource control (RRC) procedures, or timing advance (TA) commands. The indication is provided to host processor 1002 and/or WiFi-BT wireless subsystem 1010. The cellular radio subsystem 1010 can also provide information about the quality of the cellular link to the host processor 1002 and/or the WiFi-BT wireless subsystem 1010 (especially if the cellular link quality is degraded). In some embodiments, the cellular subsystem 1010 may request the WiFi-BT wireless subsystem to limit transmission power and/or transmission time periods to provide an improvement in reception by the cellular wireless subsystem 1010. In some embodiments, the cellular radio subsystem 1010 can request information about Information on WiFi and/or BT transmission periods, for example, to schedule reception of cellular RF link signals during "quiet" periods. In some embodiments, the cellular radio subsystem 1010 requests advance notification of WiFi and/or BT transmissions from the WiFi-BT wireless subsystem. In response to a message from the host processor 1002 that transitions the cellular radio subsystem 1010 from the "wireless coexistence" state 1204 to the "no wireless coexistence" state 1202, the cellular radio subsystem 1010 can reconfigure the link quality report, such as The self-cyclic report is reconfigured as an event-based report.

18 illustrates a table 1800 that summarizes the WiFi-BT wireless subsystem 1010 based on one or more events when the WiFi-BT wireless subsystem is a "disturbed" and the cellular wireless subsystem is an "intruder." The action. The WiFi-BT wireless subsystem 1010 can provide configuration updates to the host processor 1002. The configuration update may include a change to a group of radio frequency channels, a particular WiFi channel, a WiFi mode of operation, a BT mode of operation (eg, a slave pair master) used by the WiFi-BT wireless subsystem 1010, and/or a BT profile change. (For example, sync to asynchronous communication mode). The WiFi-BT wireless subsystem 1010 can provide wireless configuration updates to the host processor 1002 in a "no wireless coexistence" state 1202 or a "wireless coexistence" state 1204. The host processor 1102 can send one or more messages to the WiFi-BT wireless subsystem 1010 to enter the "wireless coexistence" state 1204. In response, the WiFi-BT wireless subsystem 1010 can obtain one or more configuration parameters of the cellular wireless subsystem 1010 from the host processor 1002 to notify the decision of the action taken when in the "wireless coexistence" state 1204. The host processor 1002 can provide information regarding the cellular configuration, such as the frequency band used, the channel used, the channel bandwidth, the time domain duplex uplink and downlink settings, the frame format, and the like. When in the "Wireless Coexistence" state 1204, the WiFi-BT wireless subsystem 1010 can configure itself for monitoring and reporting link quality metrics to the host processor 1002. The WiFi-BT wireless subsystem 1010 can calibrate an instant messaging interface coupled to the cellular wireless subsystem 1010, for example, based on one or more calibration parameters (offset, jitter) provided by the host processor 1002. WiFi-BT wireless subsystem 1010 is available from the host processor 1002 obtains the BT AFH mask that will be used when in the "Wireless Coexistence" state 1204. In some embodiments, host processor 1002 can adjust BT AFH mask 1002 based at least in part on the configuration of cellular wireless subsystem 1010. When in the "Wireless Coexistence" state 1204, the WiFi-BT wireless subsystem 1010 can receive requests from the host processor 1002 and/or the cellular radio subsystem 1010. In some embodiments, the WiFi-BT wireless subsystem 1010 can conditionally operate from the host processor 1002 and/or the hive based on the operational status and/or one or more operational activities performed by the WiFi-BT wireless subsystem 1010. The wireless subsystem 1010 receives the request to act. For example, the WiFi-BT wireless subsystem may take into account "critical" status and/or "critical" activities to ensure that changes to the WiFi RF link and/or BT RF link are adaptable to the requested changes. The critical state and/or activity may include: a BT transceiver in the WiFi-BT wireless subsystem 1010 performing paging or query operations; and a WiFi transceiver in the WiFi-BT wireless subsystem 1010 performing scanning or association operations. The WiFi-BT wireless subsystem 1010 can delay or reject changes in wireless RF transmission properties during critical states and/or critical activities to ensure proper operation. In some embodiments, the WiFi-BT wireless subsystem 1010 may request "assist" from the cellular radio subsystem 1010 during critical states and/or critical activity periods. The actions that the WiFi-BT wireless subsystem 1010 can take can include adjusting the BT timing when feasible, for example, aligning BT reception based on cellular transmissions to avoid BT reception during the cellular transmission period. As a representative example, the WiFi-BT wireless subsystem 1010 can operate in accordance with the Bluetooth 4.1 wireless communication protocol, and the cellular wireless subsystem 1010 can operate in accordance with the Long Term Evolution (LTE) Time Division Duplex (TDD) wireless protocol. In an embodiment, the WiFi-BT wireless subsystem 1010 can adjust the BT timing, reconfigure the BT AFH mask, and/or schedule based at least on the provided information regarding the transmission and reception time of the cellular radio subsystem 1010. BT reception (eg, for non-synchronous links). In an embodiment, the WiFi-BT wireless subsystem 1010 can adjust the BT AFH mask to avoid certain frequencies at which interference can occur. In an embodiment, the WiFi-BT wireless subsystem 1010 can provide an indication to the connected WiFi access point to schedule to the WiFi-BT wireless subsystem 1010 during a particular time period. The transmission is transmitted to the wireless communication device 402, for example, by providing information such that the wireless access point is not transmitted during the period in which the cellular wireless subsystem 1010 is not transmitting. The WiFi-BT wireless subsystem 1010 can change the channel that the WiFi transceiver is using when operating in an access point or inter-mode mode. The channel can be selected to be less interfered by the cellular radio subsystem 1010. When in the "Wireless Coexistence" state 1204, the WiFi-BT wireless subsystem 1010 may also be requested by the host processor 1002 to calculate and report the link quality metric to the host processor 1002. In some embodiments, the link quality metrics report can be event based and/or periodic. The WiFi-BT wireless subsystem 1010 can provide activity and/or status information to the host processor 1002 and/or the cellular radio subsystem 1010. In some embodiments, the WiFi-BT wireless subsystem 1010 can request the cellular radio subsystem 1010 to adjust transmission properties (eg, transmission time period, transmission frequency, transmission power level, etc.) to assist (eg, at critical) Reception of signals and/or procedures by the WiFi-BT wireless subsystem 1010 during sexual BT or WiFi activity. The WiFi-BT wireless subsystem 1010 can receive messages from the host processor 1002 to transition from the "wireless coexistence" state 1204 to the "no wireless coexistence" state 1202, and in response, the WiFi-BT wireless subsystem 1010 can be reconfigured Link quality report of host processor 1002. For example, compared to the "no wireless coexistence" state 1202, when in the "wireless coexistence" state 1204, link quality measurement and reporting can occur more frequently.

19 illustrates a table 1900 that summarizes when the WiFi-BT wireless subsystem is an "intruder" and the cellular wireless subsystem is a "disturbed", the WiFi-BT wireless subsystem 1010 can take based on one or more events. The action. The WiFi-BT wireless subsystem 1010 can provide configuration updates to the host processor 1002. The configuration update may include a set of RF channels used by the WiFi-BT wireless subsystem 1010, a particular WiFi channel, a WiFi mode of operation, a BT mode of operation (eg, a slave pair master), and/or a BT profile change (eg, , synchronizing changes to the asynchronous communication mode). The WiFi-BT wireless subsystem 1010 can provide wireless configuration updates to the host in the "no wireless coexistence" state 1202 or the "wireless coexistence" state 1204. The processor 1002. The host processor 1102 can send one or more messages to the WiFi-BT wireless subsystem 1010 to enter the "wireless coexistence" state 1204. In response, the WiFi-BT wireless subsystem 1010 can obtain one or more configuration parameters of the cellular radio subsystem 1010 from the host processor 1002 to notify the action taken when in the "wireless coexistence" state 1204. . The host processor 1002 can provide information regarding the cellular configuration, such as the frequency band used, the channel used, the channel bandwidth, the time domain duplex uplink and downlink settings, the frame format, and the like. When in the "Wireless Coexistence" state 1204, the WiFi-BT wireless subsystem 1010 can configure itself for monitoring and reporting link quality metrics to the host processor 1002. The WiFi-BT wireless subsystem 1010 can calibrate an instant messaging interface coupled to the cellular wireless subsystem 1010, for example, based on one or more calibration parameters (offset, jitter) provided by the host processor 1002. The WiFi-BT wireless subsystem 1010 can obtain from the host processor 1002 a BT AFH mask that will be used when in the "Wireless Coexistence" state 1204. In some embodiments, the host processor can adjust the BT AFH mask 1002 based at least in part on the configuration of the cellular wireless subsystem 1010. When in the "Wireless Coexistence" state 1204, the WiFi-BT wireless subsystem 1010 can receive requests from the host processor 1002 and/or the cellular radio subsystem 1010. In some embodiments, the WiFi-BT wireless subsystem 1010 can conditionally access the host processor 1002 and/or the hive based on the operational status and/or one or more operational activities performed by the WiFi-BT wireless subsystem 1010. The wireless subsystem 1010 receives the request to act. For example, the WiFi-BT wireless subsystem may take into account "critical" status and/or "critical" activities to ensure that changes to the WiFi RF link and/or BT RF link are adaptable to the requested changes. The critical state and/or activity may include: a BT transceiver in the WiFi-BT wireless subsystem 1010 performing paging or query operations; and a WiFi transceiver in the WiFi-BT wireless subsystem 1010 performing scanning or association operations. The WiFi-BT wireless subsystem 1010 can delay or reject changes in wireless RF transmission properties during critical states and/or critical activities to ensure proper operation. The actions that the WiFi-BT wireless subsystem 1010 can take can include adjusting the BT timing when feasible, for example, aligning BT transmission based on cellular reception, Avoid BT transmission during the cellular reception period. As a representative example, the WiFi-BT wireless subsystem 1010 can operate in accordance with the Bluetooth 4.1 wireless communication protocol, and the cellular wireless subsystem 1010 can operate in accordance with the Long Term Evolution (LTE) Time Division Duplex (TDD) wireless protocol. In an embodiment, the WiFi-BT wireless subsystem 1010 can adjust the BT timing, reconfigure the BT AFH mask, and/or rank based at least in part on the provided information regarding the transmission and reception time of the cellular radio subsystem 1010. BT transmission (for example, for non-synchronous links). In an embodiment, the WiFi-BT wireless subsystem 1010 can adjust the BT AFH mask to avoid certain frequencies at which interference can occur. The WiFi-BT wireless subsystem 1010 can change the channel that the WiFi transceiver is using when operating in an access point or inter-mode mode. The channel can be selected to cause less interference to the cellular radio subsystem 1010. The WiFi-BT wireless subsystem 1010 can, for example, rely, at least in part, on information provided regarding the transmission and reception times of the cellular radio subsystem 1010, rejecting BT transmissions (e.g., for synchronous links) when feasible during certain periods of time. . The WiFi-BT wireless subsystem 1010 may delay WiFi transmission, limit WiFi transmission power, and/or limit BT transmission power when requested by the host processor 1002 and/or the cellular wireless subsystem 1010. However, the change in transmission power may depend on the operational state, the ongoing active procedure, and/or link quality to ensure minimal impact on existing WiFi and/or BT connections and/or associations. When in the "Wireless Coexistence" state 1204, the WiFi-BT wireless subsystem 1010 may also be requested by the host processor 1002 to calculate and report link quality metrics to the host processor 1002. In some embodiments, the link quality metrics report can be event based and/or periodic. The WiFi-BT wireless subsystem 1010 can provide activity and/or status information to the host processor 1002 and/or the cellular radio subsystem 1010. The WiFi-BT wireless subsystem 1010 can provide WiFi-BT status and/or activity messages to the cellular radio subsystem 1010, for example, to notify the cellular radio subsystem of the transmission time of the WiFi and/or BT transceiver and/or The nature of the transmission is such that the cellular radio subsystem 1010 can delay and/or reschedule signal reception to a time period that is less likely to encounter interference. The WiFi-BT wireless subsystem 1010 can receive messages from the host processor 1002 to transition from "wireless coexistence" state 1204 to "no wireless" Coexistence state 1202, and in response, WiFi-BT wireless subsystem 1010 can reconfigure link quality reports to host processor 1002. For example, compared to the "no wireless coexistence" state 1202, when in the "wireless coexistence" state 1204, link quality measurement and reporting can occur more frequently.

20 illustrates a representative method 2000 of mitigating interference between wireless subsystems 1010 of wireless communication device 402. The representative method 2000 can be performed by the wireless subsystem 1010 of the wireless communication device. The wireless subsystem 1010 can be coupled to the host processor 1002 and the additional wireless subsystem 1010 of the wireless communication device 402. In step 2002, the wireless subsystem 1010 can obtain configuration information from the host processor 1002 regarding the configuration of the additional wireless subsystem 1010 in the wireless communication device 402. In step 2004, the wireless subsystem 1010 can obtain calibration information from the host processor 1002 for the interface that couples the wireless subsystem 1010 to the additional wireless subsystem 1010 in the wireless communication device 402. In some embodiments, the interface is an instant interface. In some embodiments, the interface operates in accordance with a Bluetooth (BT) Wireless Communication Interface 2 (WCI2) communication protocol. In step 2006, the wireless subsystem 1010 configures a link quality measurement report based on parameters received from the host processor 1002. In step 2008, the wireless subsystem 1010 measures and reports the link quality metrics of the radio frequency communications received by the wireless subsystem 1010. In step 2010, the wireless subsystem 1010 obtains a coexistence request from the host processor 1002 or from the additional wireless subsystem 1010. In step 2012, in response to the coexistence request, the wireless subsystem 1010 adjusts one or more transmission parameters of the wireless subsystem 1010 to reduce interference of the wireless radio transmissions of the wireless subsystem 1010 with the additional wireless subsystem 1010. In some embodiments, the adjustment is based at least in part on the measured link quality of the radio frequency communication received by the wireless subsystem, and/or based on the operational status of the wireless subsystem.

The various aspects, embodiments, implementations or features of the described embodiments can be used separately or in any combination. Various aspects of the described embodiments can be implemented by software, hardware, or a combination of software and hardware. The described embodiments may also be embodied as computer readable code on a computer readable medium for controlling manufacturing operations, or embodied on a computer readable medium. Computer readable code for controlling the manufacturing line. The computer readable medium is any data storage device that can store data, which can thereafter be read by a computer system. Examples of computer readable media include read only memory, random access memory, CD-ROM, HDD, DVD, magnetic tape, and optical data storage devices. The computer readable medium can also be distributed over a computer system coupled to the network, such that the computer readable code is stored and executed in a distributed manner.

In the foregoing detailed description, reference to the claims Although the embodiments are described in sufficient detail to enable those skilled in the art to practice the described embodiments, it is understood that the examples are not limiting, such that other embodiments may be used and may be practiced without departing from the description. Changes are made in the case of the spirit and scope of the example.

In addition, the foregoing description uses specific nomenclature to provide a thorough understanding of the described embodiments. It will be apparent to those skilled in the art, however, that no particular details are required in order to practice the described embodiments. Accordingly, the foregoing description of specific embodiments has been presented for purposes of illustration The description of the embodiments presented in the foregoing description and the examples disclosed with respect to the embodiments presented in the foregoing description are provided only for the purpose of adding the context and the understanding of the described embodiments. The description is not intended to be exhaustive or to limit the embodiments disclosed. It will be apparent to those skilled in the art that many modifications, alternative applications, and variations are possible in light of the above teachings. In this regard, it will be apparent to those skilled in the art <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; In addition, well-known program steps have not been described in detail in some instances in order to avoid unnecessarily obscuring the described embodiments.

400‧‧‧ system

402‧‧‧Wireless communication device

404‧‧‧Base Station

406‧‧‧Industrial, Scientific and Medical (ISM) Band Network

408‧‧‧ device

Claims (20)

A wireless communication device, comprising: a processor; a first wireless subsystem coupled to the processor; and a second wireless subsystem coupled to the processor and coupled to the first wireless a subsystem, wherein the processor is configured to: acquire a first wireless subsystem configuration and a second wireless subsystem configuration for the first wireless subsystem and the second wireless subsystem, respectively; Whether a wireless subsystem configuration and the second wireless subsystem configuration indicate potential or actual coexistence interference between the first wireless subsystem and the second wireless subsystem; and when the first wireless subsystem is configured And when the second wireless subsystem configuration indicates potential or actual coexistence interference between the first wireless subsystem and the second wireless subsystem: providing information of the first wireless subsystem configuration to the second a wireless subsystem; providing information of the second wireless subsystem configuration to the first wireless subsystem; providing link quality report parameters to the first wireless subsystem and the second wireless subsystem; Wireless subsystem and the first The wireless subsystem obtains a link quality report; and when one of the second wireless subsystems fails to meet a set of link quality conditions, adjusting one of the data packets transmitted or consumed by the first wireless subsystem is adjusted Or data requirements for multiple applications. The wireless communication device of claim 1, wherein the second wireless subsystem is configured to communicate status information of the second wireless subsystem via an interface between the first wireless subsystem and the second wireless subsystem Provided to the first wireless subsystem; and the first coexistence management controller of the first wireless subsystem is configured to control operation of the first wireless subsystem using the status information to mitigate the second wireless sub System interference. The wireless communication device of claim 1, wherein the first wireless subsystem operates in accordance with a wireless cellular communication protocol, and the second wireless subsystem operates in accordance with one or more of: a wireless local area network protocol and A wireless personal area network protocol. The wireless communication device of any one of claims 1 to 3, wherein when the link quality of the second wireless subsystem fails to satisfy the set of link quality conditions, the processor is further configured to: A request is provided to the first wireless subsystem to adjust a transmission power level to mitigate interference with the second wireless subsystem. The wireless communication device of claim 4, wherein: when the first wireless subsystem adjusts the transmission power level in response to the request, the processor is further configured to configure the first wireless subsystem to periodically Measure link quality and report the link quality to the processor; and when the first wireless subsystem does not respond to the request to adjust the transmit power level, the processor is further configured to place a second request Provided to the first wireless subsystem to reduce the transmission data rate of the first wireless subsystem. The wireless communication device of any of claims 1 to 3, wherein the processor is further configured to provide calibration information for a communication interface between the first wireless subsystem and the second wireless subsystem to The first wireless subsystem and the second wireless a subsystem, wherein the calibration information includes one or more of an offset and a jitter setting. The wireless communication device of any one of claims 1 to 3, wherein the processor is configured to reduce or reduce by reducing an instant codec rate of at least one of the one or more applications A streaming rate of the at least one application of the one or more applications to adjust the data requirements of the one or more applications. The wireless communication device of claim 3, wherein the first wireless subsystem configuration comprises one or more of a frequency band, a channel, and a bandwidth, and wherein the second wireless subsystem configuration includes an uplink And downlink time-sharing duplex configuration. The wireless communication device of claim 4, wherein the first wireless subsystem conditionally adjusts the transmission power level based on a link state of one of the first wireless subsystems in response to the request to adjust the transmission power level And wherein the link state comprises one or more of: a link quality, a number of active radio bearers, and a set of active procedures for communicating via the first wireless subsystem. A method of facilitating coexistence of a plurality of interconnected wireless subsystems in a wireless communication device, the wireless communication device comprising a processor, a first wireless subsystem, and a second wireless subsystem, the method comprising: At the processor: evaluating whether a first wireless subsystem configuration and a second wireless subsystem configuration indicate potential or actual coexistence interference between the first wireless subsystem and the second wireless subsystem; a wireless subsystem configuration and the second wireless subsystem configuration indicating potential or actual coexistence interference between the first wireless subsystem and the second wireless subsystem: providing link quality report parameters to the first a wireless subsystem and the second a wireless subsystem; obtaining a link quality report of the first wireless subsystem and the second wireless subsystem; and when one of the second wireless subsystems fails to meet a set of link quality conditions, A request is provided to the first wireless subsystem to adjust one or more settings of the first wireless subsystem configuration to mitigate interference with the second wireless subsystem. The method of claim 10, wherein the one or more settings configured by the first wireless subsystem comprise one or more of: a transmission power level, a transmission data rate, a transmission time period, and a The transmission frequency is used to reduce the interference of the radio frequency transmission of the first wireless subsystem to the second wireless subsystem. The method of claim 10, wherein the first wireless subsystem operates in accordance with a wireless cellular communication protocol, and the second wireless subsystem operates in accordance with one or more of: a wireless local area network protocol and a wireless Personal area network agreement. The method of any one of claims 10 to 12, further comprising the processor in the wireless communication device adjusting a data request of one or more applications that generate or consume data packets communicated via the first wireless subsystem. The method of any one of claims 10 to 12, further comprising the processor in the wireless communication device adjusting a data request of one or more applications that generate or consume data packets communicated via the second wireless subsystem. The method of any one of clauses 10 to 12, wherein the requesting the request to the first wireless subsystem to adjust the one or more settings of the first wireless subsystem configuration comprises providing a request to the first a wireless subsystem to reduce a transmission power level of the first wireless subsystem; and further comprising: at the processor: reducing the transmission power level when the first wireless subsystem does not respond to the request The data rate requirement of one or more applications receiving the data packets communicated via the second wireless subsystem is reduced. The method of any one of clauses 10 to 12, wherein the first wireless subsystem operates in accordance with a wireless personal area network protocol, and wherein the first wireless subsystem is provided to adjust the first wireless subsystem configuration The request of one or more settings includes using an adjusted adaptive frequency hopping mask based at least in part on the second wireless subsystem configuration. The method of any one of clauses 10 to 12, wherein the first wireless subsystem operates in accordance with a wireless local area network protocol, and wherein the first wireless subsystem is provided to adjust the first wireless subsystem configuration The one or more settings of the request include changing a channel used by the first wireless subsystem for transmission when the first wireless subsystem is operating in an inter-level mode or an access point mode. The method of any one of clauses 10 to 12, wherein the first wireless subsystem operates in accordance with a wireless personal area network protocol, and the second wireless subsystem operates in accordance with a wireless cellular protocol in a time-sharing mode And the request provided to the first wireless subsystem to adjust one or more settings of the first wireless subsystem configuration comprises: a receive timing pair of the time sharing mode relative to the second wireless subsystem One of the first wireless subsystems is scheduled to transmit timing. The method of any one of claims 10 to 12, further comprising: the processor in the wireless communication device reducing or decreasing an instant codec by at least one of the one or more applications A streaming rate of the at least one application of the one or more applications to adjust data requirements of the one or more applications. A method of facilitating coexistence of a plurality of interconnected wireless subsystems in a wireless communication device, the method comprising: at one of the plurality of interconnected wireless subsystems: Acquiring information configured by one of the second wireless subsystems of the plurality of interconnected wireless subsystems; obtaining calibration information for a communication interface between the first wireless subsystem and the second wireless subsystem; Configuring a link quality report by parameters provided by one of the host devices of the wireless communication device; measuring link quality of the radio frequency communication received by the first wireless subsystem; reporting link quality to the host processor Retrieving a coexistence request from the host processor or from the second wireless subsystem; and adjusting one or more transmission parameters of the first wireless subsystem in response to the coexistence request, the adjusting being based at least in part on the first The measured link quality of the radio frequency communication received by the wireless subsystem and one or more of the operational states of the first wireless subsystem.