BR112016015787B1 - WIRELESS COMMUNICATION METHOD FOR A MOBILE DEVICE THAT HAS AT LEAST A FIRST RADIO AND A SECOND RADIO, AND, WIRELESS COMMUNICATION SYSTEM COMPRISED IN A MOBILE DEVICE - Google Patents

Abstract

METHODS AND APPARATUS FOR COOPERATION BETWEEN WIRELESS REMOTE AREA NETWORK RADIOS AND WIRELESS LOCAL AREA NETWORK RADIOS. A wireless communication method includes communicating using a first radio based on a first radio technology; configuring a second radio based on a second radio technology different from the first radio technology to assist the first radio with a first radio operation; and performing at least a portion of the first radio operation of the second radio. The first radio operation includes at least one of multiple subscriber identity module (SIM) radio call monitoring and data/radio call processing, higher order diversity data acquisition and processing, interference measurement and management, determination and reporting of E-UTRAN global cell identifier (ECGI) measurement, a reference signal time difference (RSTD) measurement, flag detection for small cell identification, a minimization of drive test (MDT) measurement, and a speed estimation. The first radio technology is a wireless remote area network (WWAN) technology and the second radio technology is a (...) technology.

Description

REFERENCE TO RELATED PATENT APPLICATIONS

[0001] This application claims the benefit of United States Patent Application No. 14/149,544 entitled “METHODS AND APPARATUS FOR COOPERATING BETWEEN WIRELESS WIDE AREA NETWORK RADIOS AND WIRELESS LOCAL AREA NETWORKS RADIOS”, filed on January 7, 2014, and which is a continuation-in-part of United States Patent Application No. 13/686,896, filed November 27, 2012, incorporated herein in full by reference.

BACKGROUND 1. Field

[0002] The present disclosure generally relates to communication systems, and more particularly to communication systems for cooperation between wireless remote area network radios and wireless local area network radios.

2. Background

[0003] Wireless communication systems are widely used to provide various telecommunications services such as telephony, video, data, message exchange, and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmission capacity). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, frequency division multiple access (FDMA) systems, frequency division multiple access systems (OFDMA), single carrier frequency division multiple access systems (SC-FDMA), and time division synchronous code division multiple access systems (TD-SCDMA).

[0004] These multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at a municipal, national, regional and even global level. An example of an emerging telecommunications standard is Long Term Evolution (LTE). LTE is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) standard promulgated by the Third Generation Partnership Project (3GPP). These are designed to support better mobile broadband Internet access through improved spectral efficiency, lower costs, improved services, making use of new spectrum, and better integration with other open standards using OFDMA on the downlink (DL), SC-FDMA on the uplink (UL), and multiple-input, multiple-output (MIMO) antenna technology. However, as demand for mobile broadband access continues to increase, there is a need for additional improvements in LTE technology. Preferably, these enhancements should be applicable to other multiple access technologies and to telecommunications standards that employ those technologies.

[0005] Many operators are planning to implement many different cell types (e.g., small cells) in their networks to provide both coverage and capacity. Increasing the number of small cells in a network would result in a significant increase in the number of measurements made by a mobile device. Due to limited resources in mobile devices, increase in measurements would lead to degraded quality of service (QoS), insufficient mobility performance, etc. Additionally, for certain applications, network performance could be insufficient or even impossible to use for communications while using existing wireless wide area network radios.

SUMMARY

[0006] A wireless communication method includes, but is not limited to, any one or combination of communication using the first radio based on a first radio technology; configuring a second radio based on a second radio technology different from the first radio technology to assist the first radio with a first radio operation; and performing at least a portion of the first radio operation on the second radio. Operation of the first radio includes at least one multi-subscriber identity module (SIM) radio call monitoring and data/radio call processing, higher order diversity data acquisition and processing, interference measurement and management, determination and reporting of E-UTRAN global cell identifier (ECGI) measurement, a reference signal time difference (RSTD) measurement, flag detection for small cell identification, a minimization of drive test (MDT) measurement, and a speed estimation.

[0007] A wireless communication system includes a first radio and a second radio. The first radio communicates based on a first radio technology. The second radio is configured based on a second radio technology different from the first radio technology to assist the first radio with a first radio operation. The second radio is configured to perform at least a portion of the operation of the first radio.

[0008] A method of wireless communication for a mobile device having at least a first radio and a second radio includes, but is not limited to any one or combination of, determining the availability of the second radio; and performing, through the second radio, at least a portion of a first radio operation otherwise performed by the first radio based on the availability of the second radio.

[0009] A wireless communication method includes, but is not limited to, any one or combination of communication using the first radio based on a first radio technology; configuring a second radio based on a second radio technology different from the first radio technology to assist the first radio with a first radio operation; and receiving, on the second radio, a signal related to the operation of the first radio, the signal transmitted based on the first radio technology; and process the received signal. The first radio operation comprises at least one of multiple subscriber identity module (SIM) radio call monitoring and data/radio call processing, higher order diversity data acquisition and processing, interference measurement and management, determination and reporting ECGI, a reference signal time difference (RSTD) measurement, flag detection for small cell identification, a minimization drive test (MDT) measurement, and a velocity estimation measurement.

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIGURE 1 is a diagram illustrating an example of a network architecture.

[0011] FIGURE 2 is a diagram illustrating an example of an access network.

[0012] FIGURE 3 is a diagram illustrating an example of a DL frame structure in LTE.

[0013] FIGURE 4 is a diagram illustrating an example of a UL frame structure in LTE.

[0014] FIGURE 5 is an illustration of the downlink reference signal structure.

[0015] FIGURE 6 is a diagram illustrating the messages used during the measurement phase of a conventional handover process.

[0016] FIGURE 7 is a diagram illustrating an implementation of the measurement phase of a handover process that avoids gaps in communication between a UE and its serving cell.

[0017] FIGURE 8 is a diagram illustrating communication between a first radio and a second radio of a UE.

[0018] FIGURE 9 is a flowchart of a wireless communication method.

[0019] FIGURE 10 is a conceptual data flow diagram illustrating the flow of data between different modules/media/components in an exemplary apparatus.

[0020] FIGURE 11 is a diagram illustrating an example of a hardware implementation for a device employing a processing system.

[0021] FIGURE 12 is a flowchart of a method for coordination between a first radio and a second radio according to various embodiments of the disclosure.

[0022] FIGURE 13A is a diagram of a measurement gap.

[0023] FIGURES 13B-13C are diagrams of measurement gaps according to various embodiments of the disclosure.

[0024] FIGURE 14 is a block diagram of a system according to various embodiments of the disclosure.

[0025] FIGURE 15 is a conceptual data flow diagram illustrating the flow of data between different modules/media/components in an exemplary apparatus.

DETAILED DESCRIPTION

[0026] In various embodiments, a second radio, such as a wireless local area network (WLAN) radio, of a mobile device may coordinate with a first radio, such as a wireless remote area network (WLAN) radio ( WWAN), to assist the WWAN radio with a WWAN operation (also referred to as an application). Specifically, the WWAN radio and WLAN of a mobile device cooperate to assist the WWAN radio in various WWAN operations, including performing measurements, estimating, acquiring data, detecting, and decoding WWAN signals. WWAN operations may include adjacent cell intra frequency, inter frequency, inter RAT measurement; multi-subscriber identity module (SIM) radio call monitoring and data/radio call processing; higher order diversity data acquisition and processing; interference avoidance, coordination and mitigation; detection and decoding of system information; reference signal time difference (RSTD) measurements; beacon detection for small cell identification; minimization of drive test (MDT) measurements; and speed estimation measurements. Some of the resulting benefits may include increased user device (UE) throughput and aggregate system throughput, increased UE quality of service (QoS) (e.g. voice quality), increased mobility performance (e.g. , increase in handover success rate), reducing or eliminating the need for complicated network management, enabling simultaneous data reception and radio calling on multiple mobile SIMs, and/or the like.

[0027] The detailed description presented below in connection with the attached drawings is intended to be a description of various configurations and is not intended to represent the only configurations in which the concepts described herein can be practiced. The detailed description includes specific details to provide an in-depth understanding of various concepts. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details. In some cases, well-known structures and components are shown in block diagram form in order to avoid obscuring such concepts.

[0028] Various aspects of telecommunications systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the detailed description that follows and illustrated in the accompanying drawings by various blocks, modules, components, steps, circuits, processes, algorithms, etc. (collectively referred to as “elements”). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and design constraints imposed on the overall system.

[0029] By way of example, an element, or any portion of an element, or any combination of the elements can be implemented with a “processing system”, which includes one or more processors. Examples of processors include microprocessors, microcontrollers, digital signal processors (DSPs), field programmable gate arrays (FPGA), programmable logic devices (PLD), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionalities described throughout this disclosure. One or more processors in the processing system may execute the software. Software should be interpreted broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects , executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0030] Consequently, in one or more exemplary embodiments, the described functions can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored in or encoded as one or more code instructions or in a computer-readable medium. Computer readable media include computer storage media. Storage media can be any available medium that can be accessed by a computer. By way of example, and not as a limitation, such computer-readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that may be used to transport or store desired program code in the form of instructions or data structures, and which can be accessed by a computer. Disc and disc, as used herein, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), and floppy disk, where discs generally reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above must also be included within the scope of machine-readable media.

[0031] Figure 1 is a diagram illustrating the LTE network architecture 100. The LTE network architecture 100 may be referred to as an Evolved Packet System (EPS) 100. The EPS 100 may include one or more user devices ( UE) 102, a UMTS Terrestrial Radio Access Network (e-UTRAN) 104, an Evolved Packet core (EPC) 110, a Home Subscriber Server (HSS) 120 and IP Services 122. An operator's EPS may interconnect with other access networks, but, for simplicity, these entities/interfaces are not shown. As shown, EPS provides packet switching services, however, as those skilled in the art will readily appreciate, the various concepts presented throughout this disclosure can be extended to networks that provide circuit switching services.

[0032] The E-UTRAN includes the evolved node B (eNB) 106 and other eNBs 108. The eNB 106 provides user and control plane protocol terminations for the UE 102. The eNB 106 may be connected to other eNBs 108 via a return transport channel (e.g., an X2 interface). The eNB 106 may also be referred to as a base station, a sending base station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), or some other suitable terminology. The eNB 106 provides an access point to the EPC 110 for a UE 102. Examples of UEs 102 include a cellular phone, a smart phone, a (SIP) Session Initiation Protocol telephone, a laptop, a personal digital assistant (PDA) , a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, or any other similarly functioning device . The UE 102 may also be referred to by those skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, the wireless device, a remote unit, a mobile device, a wireless, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, an apparatus, a user agent, a mobile client , a client, or some other appropriate terminology.

[0033] The eNB 106 is connected via an S1 interface to the EPC 110. The EPC 110 includes a Mobility Management Entity (MME) 112, other MMEs 114, a Serving Gateway 116, and a data network (PDN) connection port 118. MME 112 is the control node that processes signaling between UE 102 and 110 of the EPC. Generally, the MME 112 provides bearer and connection management. All user IP packets are transferred through the gateway portion 116, which in turn is connected to the PDN gateway 118. The PDN gateway 1 18 provides UE IP address assignment as well as other functions. The PDN gateway 118 is connected to the operator's IP Services 122. The operator's IP Services 122 may include the Internet, Intranet, an IP Multimedia Subsystem (IMS), and a PS Streaming Service (PSS).

[0034] Figure 2 is a diagram illustrating an example of an access network 200 in the LTE network architecture. In this example, the access network 200 is divided into a number of cellular regions (cells) 202. One or more lower power classes of eNB 208 may have overlapping cellular regions 210 with one or more of the cells 202. The class Lower power eNB 208 may be a femto cell (e.g., home eNB (HeNB)), pico cell, micro cell, or remote radio head (RRH). The macro eNBs 204 are individually assigned a respective cell 202 and are configured to provide an access point for the EPC 110 for all UEs 206 in cells 202. There is no centralized controller, in this example, of an access network 200, but a Centralized controller can be used in alternative configurations. The eNB 204 is responsible for all radio related functions, including radio carrier control, admission control, mobility control, scheduling, security and connectivity to the gateway serving 116.

[0035] The modulation and multiple access scheme employed by access network 200 may vary depending on the particular telecommunications standard to be deployed. In LTE, OFDM is used in the downlink (DL) and SC-FDMA is used in the uplink (UL) to support both frequency division duplexing (FDD) and time division duplexing (TDD). As those skilled in the art will readily appreciate from the detailed description below, the various concepts presented here are well suited for LTE applications. However, these concepts can be easily extended to other telecommunications standards that employ modulation and other multiple access techniques. As an example, these concepts can be extended to Evolution-Data Optimized (EV-DO) or Ultra Mobile Broadband (UMB). EV-DO and UMB are air interface standards promulgated by the 3rd Generation Partnership Project2 (3GPP2) as part of the CDMA2000 family of standards and employ CDMA to provide broadband Internet access to mobile stations. These concepts can also be extended to Universal Terrestrial Radio Access (UTRA) employing Wideband-CDMA (W-CDMA) and other CDMA variants such as TD-SCDMA; Global System for Mobile Communications (GSM) employing TDMA; and Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM using OFDMA. UTRA, E-UTRA, UMTS, LTE and GSM are described in documents from the 3GPP organization. CDMA2000 and UMB are described in documents from the 3GPP2 organization. The actual wireless communication standard and multiple access technology employed will depend on the specific application and the general design constraints imposed on the system.

[0036] The eNB 204 may have multiple antennas that support MIMO technology. The use of MIMO technology allows the eNB 204 to explore the spatial domain to support spatial multiplexing, beamforming, and transmission diversity. Spatial multiplexing can be used to transmit different data streams simultaneously on the same frequency. Data vapors may be transmitted to a single UE 206 to increase the data rate or from multiple UEs 206 to increase overall system capacity. This is achieved by spatially pre-coding each data stream (i.e., applying a scaling of one amplitude and one phase) and then transmitting each pre-coded spatial stream through multiple transmit antennas in the DL. . The spatially pre-coded data streams arrive at the UE(s) 206 with different spatial signatures, which allows each of the UE(s) 206 to retrieve one or more data streams destined for that UE 206. In the UL, each UE 206 transmits a spatially pre-coded data stream, which allows the eNB 204 to identify the source of each spatially pre-coded data stream.

[0037] Figure 3 is a diagram of 300 illustrates an example of a frame structure in DL LTE. One frame (10 ms) can be divided into 10 subframes of equal size. Each subframe can include two consecutive time slots. A feature grid can be used to represent two time slots, each time slot including a feature block. The resource grid is divided into several resource elements. In LTE, a resource block contains 12 consecutive subcarriers in the frequency domain and, by a normal cyclic prefix on each OFDM symbol, 7 consecutive OFDM symbols in the time domain, or 84 resource elements. For an extended cyclic prefix, a resource block contains 6 consecutive OFDM symbols in the time domain and has 72 resource elements. Some of the resource elements, as indicated in R 302, 304, include DL reference signals (DL-RS). DL-RS include cell-specific RS (CRS) (also sometimes called common RS) 302 and UE-specific RS (UE-RS) 304. UE-RS 304 is transmitted only in those resource blocks where the physical channel shared DL, corresponding (PDSCH) is mapped. The number of bits carried by each resource element depends on the modulation scheme. Thus, the more resource blocks a UE receives, and the larger the modulation scheme, the higher the data rate for the UE.

[0038] Figure 4 is a diagram of 400 illustrates an example of a UL frame structure in LTE. The resource blocks available to the UL can be divided into a data section and a control section. The control section can be formed at both ends of the bandwidth system and can have a configurable size. Resource blocks in the control section can be assigned values for transmitting control information. The data section can include all resource blocks not included in the control section. The UL frame structure results in the data section including contiguous subcarriers, which may allow a single UE to be assigned all contiguous subcarriers in the data section.

[0039] The UE may be assigned resource blocks 410A, 410b in the control section to transmit control information to an eNB. The UE may also be assigned resource blocks 420a, 420b in the data section to transmit data to the eNB. The UE may transmit control information on a UL physical control channel (PUCCH) over the resource blocks assigned in the control section. The UE may transmit only data, or both data and control information on a physical UL channel (PUSCH) over the resource blocks assigned in the shared data section. A UL transmission can span both partitions of a subframe and can hop across frequency.

[0040] A set of resource blocks may be used to perform initial system access and achieve UL synchronization on a physical random access channel (PRACH) 430. The PRACH 430 carries a random sequence and cannot carry any UL/ signaling data. Each random access preamble occupies a bandwidth corresponding to six consecutive resource blocks. The starting frequency is specified by the network. That is, transmission of the random access preamble is restricted to certain time and frequency resources. There is no frequency hopping for PRACH. The PRACH attempt is performed in a single (1 ms) or a sequence of a few contiguous subframes and a UE can only make a single PRACH attempt per frame (10 ms).

[0041] In cellular networks, when a mobile device moves from cell to cell and performs cell selection/reselection and handover, it has to measure the signal strength/quality of neighboring cells. In this type of handover, the UE will help with the handover decision by measuring neighboring cells and reporting the measurements to the network, which in turn decides on the timing and target cell. The parameters to measure and declaration thresholds are decided by the network. Cellular measurements, also known as cell research, are complex and expensive. It is also powerful and time-consuming because it involves calculating the correlation between the received signal and known replicas of the transmitted signal. The measurements to be performed by the UE for mobility are classified as intra-frequency measurements, inter-layer (in the case of hierarchical cell structure deployment), inter-frequency measurements, or inter-RAT measurements. Measurement quantities and communication events are considered separately for each measurement type. Measurement commands are used by E-UTRAN to order the UE to start, modify or stop measurements. In the RRC_IDLE state, the UE follows the measurement parameters defined for new cell selection and transmitted by E-UTRAN. In the RRC_CONNECTED state, the UE follows the configuration of measurements such as MEASUREMENT_CONTROL specified by the radio resource controller (RRC) directed from the eNB.

[0042] Measurements are classified as assisted gap or unassisted gap depending on whether the UE must have transmit/receive gaps to perform the relevant measurements. An unassisted gap measurement is a measurement in a cell that does not require transmit/receive gaps to allow measurements to be performed. An assisted gap measurement is a measurement in a cell that does not require transmit/receive gaps to allow the measurement to be made. Default gaps are configured and activated by the eNB using RRC messages. According to current 3GPP standards, the UE is supposed to not be able to perform measurements of inter-frequency adjacent cells (cells) without measurement gaps. This applies for the following scenarios: (1) different carrier frequencies, target cell bandwidth less than the current cell bandwidth and the target cell bandwidth within the current cell bandwidth, ( 2) different carrier frequencies, the bandwidth of the target cell greater than the bandwidth of the current cell and the bandwidth of the current cell within the bandwidth of the target cell, (3) different carrier frequencies and bandwidth band do not overlap. While gap measurements are provided by the eNB to UEs that need to perform assisted gap measurement to support mobility, measurements can also be performed by the UE during downlink/idling periods that are provided by discontinuous reception (DRX), discontinuous transmission (DTX) or packet scheduling.

[0043] When the UE is camped in any cell state, the UE attempts to receive and measure signals, including inter frequency quality indicators, or inter RAT indicated in the measurement or emission control message from system information of the service cell. To receive and measure these signals and quality indicators the UE detects, synchronizes, and/or monitors the indicated inter-cell and inter-RAT frequency. UE measurement activity is also controlled by measurement rules that allow the UE to limit its measurement activities if certain conditions are met. According to 3 GPP standards, the UE must be able to identify new inter frequency cells and perform signal strength measurements of identified international frequency cells if frequency information is provided by the serving cell. This applies to both UTRA E- UTRA e technologies. In the case of E-UTRA, the UE is required to measure RSRP and RSRQ measurements from at least four inter-frequency carrier cells identified by E-UTRA. There is also a requirement on the UE to control up to at least 3 E-UTRA carriers. This means that, in total, an E-UTRO UE must be capable of measuring at least 12 international frequency cells. Similarly, a UE UTRA is required to monitor 32 interfrequency cells, including maximum 2 additional carrier cells. RSRP and RSRQ are analogues for UMTS CPICH Eco and CPICH RSCP measurements, respectively. The specifications also place restrictions on how often these measurements must be carried out.

[0044] An LTE-capable UE performing inter RAT measurements (the UE is served by LTE cell and is required to perform measurements on the UMTS cell), e.g. for UTRAN and GERAN, or international frequency measurements (the UE is served for LTE cell and is required to perform measurements on LTE cells), for example, for e-UTRAN, it is required to tune away. UE Similarly, a compatible UMTS network performing inter-RAT measurements (the UE is served by UMTS cell and is required to perform measurements on LTE cells), or inter-frequency measurements (the UE is served by UMTS cell and is required to perform measurements in LTE cells) needs to make measurements to support the handover process. Carrying out measurements requires assigning measurement gaps and the UE going into compressed mode and distance adjustment. In both cases, the distance adjustment by the UE creates communication failures that affect the quality of service and effective throughput.

[0045] In order to perform measurements, the UE needs to receive and measurement signals, including inter frequency quality indicators, or inter cell RAT indicated in the measurement control message or emission from cell system information of service. This reception and measurement involves detecting, synchronizing and/or monitoring the indicated inter-cell and inter-RAT frequency. This well-defined multi-step process of detecting, synchronizing, and monitoring cells can be done in the time domain or in the frequency domain. This type of processing can be performed in real time, or offline. In offline mode, data capture is stored and then processed in parallel.

[0046] As mentioned above, in a UMTS network, a series of measurements UE received signal strength indicator (RSSI), common pilot channel (CPICH) received signal power code (RSCP) and CPICH Ec/No. In an LTE network, the UE periodically performs downlink radio channel measurements based on reference signals (RS) received from cells. RS in LTE is similar to pilot in WiMAX. The UE measures two parameters in the RS: reference received signal power (RSRP) and reference received signal quality (RSRQ).

[0047] RSRP is a type of RSSI measurement. It measures the average received power over resource elements carrying cellular-specific reference signals within a given frequency bandwidth. RSRQ is a C/I measurement type and indicates the quality of the received reference signal. RSRQ is defined as (N*RSRP)/(E-UTRA RSSI carrier), where N ensures that the numerator and denominator are measured across the same frequency bandwidth. The RSSI carrier measures the average total received power observed only on OFDM symbols that contain reference symbols for antenna port 0 (that is, OFDM symbol 0 and 4 in a partition) in the measurement bandwidth over N resource blocks.

[0048] The total power received from the RSSI carrier includes co-channel power serving and non-serving cells, adjacent channel interference, thermal noise, etc. RSRP is applicable in both RRC_IDLE and RRC_CONNECTED modes, while RSRQ is applicable only in RRC_CONNECTED mode. RSRP is used in the cell selection procedure and cell reselection in idle mode. RSRP and/or RSRQ are used in the handover procedure. It is the specific application.

[0049] A UE makes periodic RSRP and RSRQ measurements based on the RS received from the cell and serving adjacent cells. For RSRP determination, Ro cell-specific reference signals are used. If the UE can reliably detect that Rl is available, it can use Rl in addition to Ro to determine RSRP.

[0050] Figure 5 is an illustration of the RS 500 downlink structure for channel estimation, CQI measurement, and cell search/acquisition. The reference symbols (R) are located on the first OFDM symbol (1° R) 502 and 3rd to last OFDM symbol (2° R) 504 of each subframe.

[0051] An LTE-compatible UE may be required to handover to another LTE network on a different frequency/band (an inter-frequency handover) or to a non-LTE network, such as a UMTS network (an inter-RAT handover). . An LTE UE complaint needs to make measurements about LTE on different frequency/band networks and non-LTE to support the handoff process. As stated above, in order to perform handover measurements, the LTE compatible UE may require the assignment of measurement intervals. Measurement gaps are assigned time slots when the UE is free to perform measurement procedures in transmission of different radio access technologies (RAT) or different frequencies/band. During measurement intervals, no data is transmitted between the serving base station (ENB) and the UE. It is desirable for a compatible LTE UE to measure cells at the same frequency without using measurement gaps.

[0052] Likewise, a UE compliant UMTS network may be required to handover to another UMTS network at different frequencies/band (an interfrequency handover) or to a non-UMTS network, such as an LTE network (an interfrequency handover). -RAT). A UE compliant UMTS can measure cells at the same frequency without using measurement gaps in compressed mode.

[0053] Figure 6 is a diagram illustrating 600 messages used during the measurement phase of a conventional transfer process. In the process, a source eNB 602 sends a configuration message 604 to a UE 606. The configuration message 604 informs the UE how to report specific measurements. Included in configuration message 604 is a default gap parameter, which defines the measurement reporting interval (time) intervals, assuming DRX mode of operation. During these measurement gap intervals, the UE 606 temporarily ceases communication with the source eNB 602 in order to perform the measurements requested in the configuration message 604. After obtaining the required measurements, the UE 606 sends a measurement report message. measurement 608 to the source eNB 602. the source eNB 602 uses the information in the measurement report message 608 to make a handover (HO) decision 610.

[0054] Figure 7 is a diagram illustrating an implementation 700 of the quantification phase of a handover process that avoids gaps in communication between a UE and its serving cell. In this implementation, a second UE radio is used to perform the measurements, thus obviating the use of space patterns, as shown in Figure 6. The first UE radio temporarily configures a second UE radio to perform these measurements. This is feasible since mobile devices have multiple radios designed to work on different networks. For example, E-UTRAN and WCDMA radios are designed to work in wireless wide area networks (WWAN), while 802.11 radios are designed to work in wireless local area networks (WLAN). These WLAN radios implement an FFT engine as part of their normal operation. The FFT engine can be used to perform measurements on the downlink of WWAN networks, and therefore eliminates the need to configure the wireless device with measurement intervals.

[0055] A UE 702 is shown that communicates with a first eNB 704 within a serving cell 706 adjacent to a second eNB 708 within an adjacent cell 710. The UE 702, 702' includes a first radio 712 that is based on a first radio technology, for example, a radio technology that implements a wireless wide area network (WWAN), such as LTE or UMTS. The UE 702, 702' also includes a second radio 714, which is based on a second radio technology that is different from the first radio technology, for example, a radio technology that implements a wireless local area network (WLAN). , such as Wi-Fi. The second radio 714, however, is configured or configurable to receive signals transmitted based on a radio technology other than the second radio technology, from an adjacent cell operating at a different frequency.

[0056] For example, the FFT mechanisms of a second radio can be configured to perform measurements on the downlinks of a WWAN network. It is therefore possible to reconfigure a wireless radio, such as a Wi-Fi radio (which is an OFDM-based radio), to receive signals transmitted based on LTE technology. As such, the second radio 714 can perform the aforementioned E-UTRAN and handover measurements, while the first radio 712 remains on its current carrier frequency and continues to communicate in the serving cell. In this dual radio simultaneous operation mode, undesirable communication failures are avoided since communication from the first radio to the serving cell is uninterrupted.

[0057] In this embodiment, the first radio 712 of the UE 702 receives a command 716, 716' from the eNB 704 of the service cell 706. The first radio 712 configures the second radio 714 to receive signals 718, 718' transmitted by the second eNB 708 in the adjacent cell 710 and a received signal quality indicator 718, 718' is extracted. This mode of operation requires tight cooperation between the first radio 712 and the second radio 714. To this end, the first radio 712 and the second radio 714 are configured to communicate with each other to allow parallel, i.e., operation. simultaneous operation of the radios and configuration of the second radio as needed.

[0058] Figure 8 is a diagram illustrating communication 800 between a first radio 802 and a second radio 804 of a UE. When the first radio 802 communicating with the serving cell receives a command from the E-UTRAN of the serving cell to order the UE to perform quality measurements of an adjacent cell, the first radio 802 issues a configuration command 806 to the second radio 804, which initiates reconfiguration of the second radio to a radio technology different from its primary radio technology. The configuration command provides the second radio with information that allows the second radio 804 to receive and measure signals, including quality indicators from the adjacent cell. The command includes, but is not limited to, the number of FFT points, the spacing between subcarriers, sampling frequency, center frequency, and bandwidth.

[0059] The first radio 802 also generates a measurement request command 808 to the second radio 804. The request command 808 informs the second radio 804 which measurements to obtain. The second radio 804 receives measurement signals, including inter frequency quality indicators, or inter cell RAT indicated in the measurement request message. This reception and measurement involves detecting, synchronizing and/or monitoring the indicated inter-cell and inter-RAT frequency. Detection, synchronization, and control can be done in either the frequency domain or the time domain. Processing can also be carried out in real time, or offline. In offline mode, data is captured, stored, and then processed.

[0060] When measurements are obtained by the second radio 804, the second radio emits a response 810 (e.g., measurement data, acquired data, processed data, etc.) to the first radio 802. In specific embodiments, the response message includes, but is not limited to, Physical Cell ID, Measurement Type, Measurement ID, Measurement Object ID, Report Configuration ID, and measurement report.

[0061] Subsequently, the first radio 802 that communicates with the serving cell may receive a command from the cell's E-UTRAN to order the UE to stop quality measurements of an adjacent cell. In this case, the first radio 802 initiates reconfiguration of the second radio 804 back to its primary radio technology by sending another configuration command 806.

[0062] Figure 9 is a flowchart 900 of a wireless communication method. The method may be carried out by a UE having a first radio based on a first radio technology and a second radio based on a second radio technology that is different from the first radio technology, such as described above with respect to figure 7 In step 902, the first radio of the UE communicates, for example, by receiving signals transmitted based on the first radio technology from a serving cell. The first radio technology may be WWAN technology such as LTE or UMTS.

[0063] In step 904, the first radio of the UE receives a command from the cell that serves to perform a measurement of an adjacent cell, in order to obtain a quality indicator for the adjacent cell. In the case of an LTE-based adjacent cell, the quality indicator may include, for example, one or more of an RSRP, an RSRQ, and a single interference plus noise (SINR). In the case of an adjacent cell-based UMTS, the quality indicator may include, for example, one or more of an RSSI, CPICH-RSCP, and CPICH Ec/No.

[0064] In step 906, the first radio of the UE configures a second radio that is based on a second radio technology to receive signals transmitted based on a radio technology other than the second radio technology. The second radio technology may be a wireless technology, such as WiFi. The radio technology that is different from the second radio technology may be the same radio technology associated with the first radio or may be a third radio technology that is different from both the first and second radio technologies. For example, in the case where the first radio technology is LTE and the second radio technology is Wi-Fi, the second radio can be reconfigured to receive signals transmitted in accordance with LTE based radio technology for the purpose of measuring frequency. inter, or reconfigured to receive UMTS-compliant transmitted signals for the purpose of inter RAT measurement. In the case where the first radio technology is UMTS and the second radio technology is Wi-Fi, the second radio can be reconfigured to receive signals transmitted in accordance with LTE based radio technology for the purpose of inter RAT measurement, or reconfigured to receive signals transmitted in accordance with UMTS for the purpose of inter frequency measurement. As described above, reconfiguration of the second radio is done through a configuration command sent by the first radio to the second radio.

[0065] In step 908, the first radio of the UE requests the second radio to perform the measurement. Note that while the second radio reconfiguration is described here before requesting the second radio to perform the measurement, these steps can be performed in any order or simultaneously. In other words, the request to measure and configure the second radio can be considered to occur in any order, or essentially at the same time.

[0066] In step 910, the second radio of the UE measures a quality indicator of a signal received from an adjacent cell in the second radio. This signal, for example the reference signal (RS), is transmitted based on radio technology other than the second radio technology. The measurement involves detecting and synchronizing signals received by the second radio from the adjacent cell and extrapolating from there the appropriate quality indicators, such as RSRP, RSRQ, or SI R (for LTE) or RSSI, CPICH-RSCP, or CPICH Ec /No (for UMTS). Detection and synchronization can be done in either the frequency domain or the time domain. Processing can also be carried out in real time, or offline. In offline mode, data is captured, stored, and then processed.

[0067] In step 912, the second radio of the UE reports the quality indicator to the first radio by sending a response message to the first radio. As described above with reference to Figure 10, the response message may include, but is not limited to, Physical Cell ID, Measurement Type, Measurement ID, Object Measurement ID, Report Configuration ID, and Measurement Report. .

[0068] Finally, in step 914 the first radio of the UE transmits the quality indicator to an eNB in the serving cell using the first radio based on the first radio technology (UMTS or LTE). The eNB uses the quality indicator to determine whether a transfer should occur.

[0069] Figure 10 is a conceptual data flow diagram illustrating 1000 the data flow between different modules/medium/components of an exemplary apparatus 1002. The apparatus may be a UE. The apparatus 1002 includes a first radio module 1004 that is based on a first radio technology and a second radio module 1006 that is based on a second radio technology that is different from the first radio technology. The first radio module 1004 includes a receiving module 1008 that receives a command to perform the measurement operation described above with reference to Figure 9. The command is received via a signal 1020 transmitted from the apparatus 1022, e.g. eNB, within the service cell of the apparatus 1002 and is received via the first radio based on the first radio technology.

[0070] The first radio module 1004 also includes a request module 1010 and a Configuration module 1012. The request module 1010 requests the second radio 1006 to perform the measurement, while the configuration module 1008 configures the second radio module 1006 for receiving transmitted signals based on a radio technology other than the second radio technology.

[0071] The second radio module 1006 includes a measurement module 1014 that measures a quality indicator of a signal 1024 received at the second radio module. Signal 1024 is transmitted from apparatus 1026 within an adjacent cell and is based on radio technology other than the second radio technology. The second radio module 1006 also includes a reporting module 1016 that reports the quality indicator to the first radio 1004. The first radio module 1004 further includes a transmitting module 1018 that transmits the quality indicator to the apparatus 1022 in the serving cell. The quality indicator is transmitted by a 1028 signal using the first radio based on the first radio technology. One or more of the modules 1008, 1010, 1012, 1018 of the first radio module 1004 functions as a communication module, which allows radio communication using the first based on the first radio technology.

[0072] Apparatus 1002 may include additional modules that perform each of the steps of the algorithm in the aforementioned flowcharts of Figure 9. As such, each step in the aforementioned flowcharts of Figure 9 may be performed by a module and the apparatus may include a or more of the aforementioned modules. The modules may be one or more hardware components specifically configured to carry out said processes/algorithm, implemented by a processor configured to execute the stated processes/algorithm, stored within a computer readable medium for execution by a processor, or some combination of these.

[0073] Figure 11 is a diagram 1100 illustrating an example of a hardware implementation for an apparatus 1002 employing a processing system 1114. The processing system 1114 may be implemented with a bus architecture, generally represented by the number of bus 1124. The bus 1124 may include any number of interconnecting buses and bridges, depending on the specific application of the 1114 processing system and overall design constraints. The buses 1124 interconnect various circuits, including one or more processors and/or hardware modules, represented by the processor 1104, the modules 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1018, and the computer-readable medium 1106. The bus 124 may also connect other circuits such as timing supplies, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore will not be described further.

[0074] The processing system 1114 may be coupled to a transceiver 1110. The transceiver 1110 is coupled to one or more antennas 1120. The transceiver 1110 provides a means for communicating with various other devices via a transmission medium . The processing system 1114 includes a processor 1104 coupled to a computer-readable medium 1106. The processor 1104 is responsible for general processing, including executing software stored on the computer-readable medium 1106. The software, when executed by the processor 1104, causes the processing system 1114 to perform the various functions described above for any particular apparatus. The computer-readable medium 1106 may also be used for storing data that is manipulated by the processor 1104 when executing software. The processing system further includes at least one of the modules 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1018. The modules may be software modules running on the processor 1104, resident/stored on the computer readable medium 1106 , one or more hardware modules coupled to the processor 1104, or some combination thereof. The processing system 1114 may be a component of the UE 650 and may include memory 660 and/or at least one of the TX processor 668, the RX processor 656, and the controller/processor 659.

[0075] In one configuration, the apparatus 1002/1002' for wireless communication includes means for communicating using a first radio based on a first radio technology, the means for configuring a second radio based on a second different radio technology of the first radio technology receiving signals transmitted on the basis of a radio technology other than the second radio technology, and means for measuring an indicator of a signal received on the second radio, the signal transmitted on the basis of radio technology other than the second radio technology radio quality. The apparatus 1002/1002' for wireless communication further includes means for receiving a command to perform the measurement, means for requesting the second radio to perform the measurement, means for presenting reports by the second radio and the quality indicator to the first radio. , and means for transmitting the quality indicator to a serving cell using the first radio.

[0076] The aforementioned means may be one or more of the aforementioned modules of the apparatus 1002 and/or the processing system 1114 of the apparatus 1002 'configured to perform the functions recited by the aforementioned means. As described, the processing system 114 may include a TX processor 668, the RX processor 656, and the controller/processor 659. As such, in one embodiment, the aforementioned means may be the TX processor 668, the RX processor 656, and the controller/processor 659 configured to perform the functions recited by the means referred to above.

[0077] In various embodiments, on a mobile device (e.g., 606, 702, 702', 1002, 1002' in figures 6, 7, 10, 11), which may also be referred to as a user device (UE), an apparatus, or the like, that has a first radio (e.g., 712, 802, 1004 in figures 7, 8, 10) and a second radio (e.g., 714, 804, 1006 in figures 7, 8, 10), the second radio may assist the first radio with a first radio operation by coordinating between the two radios, for example, as shown by method B 1200 in FIG. 12. In particular, the first radio and the second radio may cooperate to assist the radio first of various radio first operations. By configuring the second radio for first radio technology, the second radio can perform first radio operations, including making measurements, estimation, data acquisition, detection, and decoding of first radio signals. Radio-first operations may include (but are not limited to) intra-frequency neighbor adjacent cell, international frequency, inter-RAT measurements; page monitoring and data/page processing multi-subscriber identity module (SIM); increased order of acquisition and processing of diversity data; avoid interference, coordination and mitigation; system information detection and decoding; difference (RSTD) measurements of the reference signal time; beacon detection for small cell identification; minimization of unit test measurements (MDT); and speed estimation measurements. Some of the resulting benefits may include increasing UE throughput and aggregate system throughput, improving UE QoS (e.g., voice quality), improving mobility performance (e.g., increasing delivery success rate), reducing or eliminating the need for complicated network management, allowing simultaneous page and data reception on multiple SIMs, and/or similar mobile devices.

[0078] With reference to figure 1-12, in block B1210, the availability of the second radio to assist the first radio can be determined. For example, the first radio may send a request for the availability of the second radio, and the second radio may provide a response of its availability to the first radio. In other embodiments, the second radio may notify the first radio of the availability of the second radio without the first radio requesting such.

[0079] In block B1220, the second radio assists the first radio with the operation of the first radio. In particular, the second radio may receive or otherwise obtain a signal related to the operation of the first radio. This may come from an event trigger, such as a network entity (e.g., eNB, serving cells 1022 in Figure 10) providing a request to the mobile device. For example, the first radio may provide information (e.g., frequency) to the second radio to perform an operation, such as a measurement or the like, in response to the first radio request receiving a measurement from an eNB. . Thus, the second radio can perform the measurement based on the information provided. For example, the second radio can tune the frequency to obtain the measurement.

[0080] In B1230, the signal is processed. In some embodiments, measurements may be processed by the second radio. In other embodiments, measurements may be communicated to the first radio for processing by the first radio. In still other embodiments, measurements (or portions thereof) may be handled by both the first radio and the second radio. In additional embodiments, the processed results may be provided to the network, for example, by the first radio and/or the second radio.

[0081] In some embodiments, the second radio may be configured to assist (i.e., the second radio is available to assist) the first radio on predetermined events. For example, the second radio can assist the first radio when the second radio is in sleep mode, the second radio is in a standby mode, the second radio is running and also the second radio supports simultaneous operations (e.g. scanning spectral) to help the first radio, or other predetermined mode.

[0082] In various embodiments, the second radio may be configured to give priority to second radio operation over assistance to the first radio. For example, in some embodiments, if the second radio is in use, the second radio does not assist the first radio. Such embodiments may occur for applications such as (but not limited to) voice over internet protocol (VoIP). The second radio can assist the first radio once the second radio becomes available (e.g., ends the current operation). In other embodiments, if the second radio is in use, the second radio operation may be interrupted to assist the first radio. Such embodiments may be for applications such as (but not limited to) data transfers. After watching the first radio, the second radio can continue the operation that was interrupted

[0083] In specific embodiments, a first radio, cooperative operation may indicate to a second radio medium access channel (MAC), a channel usage time, and a QoS attribute (e.g., latency budget within which measurements are made). are being implemented). Channel usage time may be the time to take radio-first measures plus some overhead. The second radio MAC may handle the first radio operation as another stream. When the first radio's operation flow is programmed, the second radio will send CTS (cleared to send) with network allocation vector (NAV) set to the channel usage time. This ensures that there is no second radio interference from other devices during operation of the first radio by the second radio. When the first radio operation is complete, the channel becomes available for normal second radio operation.

[0084] In various embodiments, the first radio operates in at least two modes: a normal mode (or first mode) in which the first radio performs all first-radio operations (with one or more first-radio antennas, some of which can be shared); and a cooperative mode (or second mode), in which the second radio assists the first radio with at least one first-radio operation.

[0085] Likewise, the second radio can be configured to correspond with the operating modes of the first radio. For example, the second radio may include one or more settings and/or parameters for radio frequency (RF) filters, automatic gain control (AGC) loops, clocks, and PHY algorithms associated with each mode. In specific embodiments, the second radio may include one or more settings and/or parameters for each operation of the first radio for which the second radio may assist the first radio. For example, when assisting the first radio with a first radio operation (e.g., MDT measurements), the second radio may include a first configuration (S) and/or parameter(s), and when assisting the first radio With a second first radio operation (e.g., RSTD measurements), the second radio may include a second type(s) and/or parameter(s).

[0086] In some embodiments, switching between the at least two operating modes for the first radio may be based on one or more factors, such as channel condition. For example, due to the nature of the wireless channel between the first radio and the network, if the channel has a degree that is greater than 1, indicating that multi-antenna communication can be sent securely with the first radio, then the radio-first operation will be performed by the first radio. That is, the first radio remains in normal operating mode, without requesting assistance from the second radio. If the channel rating is 1, the first radio operation can be performed (or otherwise assisted) by the second radio. That is, the first radio switches to coordination operation mode.

[0087] Another example is a scenario where a high data rate application is being communicated over the first radio and the mobile device has to make international frequency measurements (with measurement gaps) due to degrading signal strength. In this case, the first radio may employ the assistance of the second radio in making such measurements, so as to ensure that the performance of the high data rate application is not affected by the measurement gaps required for the measurements. On the other hand, if a low data rate application is being communicated over the first radio and the throughput of that application is not a concern, then the first radio may not request assistance from the second radio and choose to perform interfrequency measurements with the measurement gaps.

[0088] The switching mode of operation may be communicated to the network (e.g., eNB) in any suitable manner. In specific embodiments, UE capacity changes (e.g. need for measurement gaps) are communicated to the eNB. In some embodiments, switching may be accomplished via a dynamic radio resource controller (RRC) signal between the UE and the eNB. In some embodiments, existing indicators (e.g., rating indicator (RI)) may be used to switch the mode of operation.

[0089] As described in the disclosure, according to various embodiments, the second radio may be configured to assist (the first radio) with a first radio operation, such as inter frequency and inter RAT measurements, of adjacent cells. Therefore, the first radio (WWAN radio) remains on the serving carrier at the same time the searches and measurements are made at least in part by the second radio (wireless radio). Neighbor cell measurements that can be taken on the WLAN radio include, for example, bandwidth and RSSI estimation, timing determination (partition and frame timing determination with synchronization channels), reference signal power measurements (e.g. example, RSRP, RSRQ, etc.), and/or similar. In other embodiments, intra-frequency measurements of adjacent cells may be made. As such, various modalities prevent or mitigate loss of yield and degraded mobility performance. In particular, these embodiments can improve QoS (e.g., increase throughput), increase network performance (e.g., increase system throughput, decrease network signaling, etc.), improve mobility performance (e.g., example, increase transfer success rate), to minimize network management (e.g. cost, power consumption, etc.).

[0090] In some embodiments, the second radio may be configured to assist in taking intra frequency, inter frequency, and inter RAT measurements, in support aggregation scenarios when all receiving streams on the first radio are utilized up and these measurements are needed. In this case, the second radio can help make measurements of neighboring cells.

[0091] Figure 13A illustrates an example of a prior art system 1310 in which the first radio performs measurements at measurement intervals 1312, 1314. In such embodiments, the first must tune the radio away from its carrier, the measurement gaps 1312, 1314. In various embodiments, because the second radio can assist the first radio by performing measurements (e.g., 1342, 1344) instead of the first radio, the first radio can be relieved (e.g., 1330 ) from measurements taken, as shown, for example, in Figure 13B. As such, the first radio may not need to adjust its distance from the carrier. As in another embodiment, the UE may be scheduled in idle time and the UE may send HARQ ACK/NAK for uplink transmissions, but due to measurement gaps these uplink messages may be delayed. In these cases, the second radio can be configured to perform more measurements (e.g., at 1362, 1363, 1364, 1625) than the first radio would otherwise do, e.g., as shown in Figure 13C, thus providing more throughput for uplink transmissions.

[0092] In some embodiments, the second radio reports measurements to the first radio for processing thereof. Therefore, the first radio can communicate the transformed measurements to the network (e.g., eNB). In other embodiments, the second processes radio measurements. The second radio may provide the processed measurements to the first radio and/or the network.

[0093] In various embodiments, the second radio assists the first radio with a first radio operation to improve the capability of the mobile device (or UE). Measurement gaps can include scheduled faults (gap-assisted measurements) and unattended gaps (non-gap-assisted measurements). Programmed gaps are configured by the network (e.g., eNB), which sets up a gap pattern and provides the gap pattern to the mobile device (e.g., via dedicated RRC signaling). The mobile device can create autonomous gaps to perform measurements when the mobile device temporarily stops communication with all cells it serves. An unassisted-gap measurement is a measurement in a cell that does not require transmit/receive gaps. A gap-assisted measurement is a measurement in a cell that does not require transmission/reception gaps. Whether assisted non-gap measurement or assisted gap measurement depends on the capability of the mobile device and current operating frequency of the mobile device. The mobile device determines whether a particular cell measurement needs to be performed in a transmit/receive gap, and the programmer determines whether gaps are needed. So, for example, because of the second radio (which can perform measurements on behalf of the first radio); The mobile device does not need measurement gaps for gap-assisted measurements (e.g. inter-frequency, inter-RAT measurements). Therefore, the mobile device can be configured to notify the network device that the mobile does not need measurement gaps.

[0094] In specific embodiments, the determination of whether a measurement gap is necessary (or not necessary) can be established on a per-band basis. Thus, for example, the mobile device may indicate to the network that it requires a measurement difference for a first band and no measurement interval for a second band.

[0095] In various embodiments, the second radio may be configured to assist the first radio with a first radio operation, such as multi-subscriber identity module (SIM) radio call monitoring and radio call/data processing. A multi-SIM mobile device that supports Dual-SIM Dual Standby (DS-DS) can monitor radio calls simultaneously on a first SIM card and a second SIM card of the mobile device using the first radio. However, once in an active call (using the first radio) on the first SIM, the first radio may not be able to monitor pages on the second SIM without interrupting the call. Therefore, pages, calls or data relating to the second SIM may be lost because the mobile device user could not be contacted via the second SIM. Therefore, in various embodiments, the second radio may be configured to make page data measurements and/or process this information for the second SIM (and/or other SIMs).

[0096] In specific embodiments, when the first SIM is in use, page and data may be collected by the second radio and reported to the first radio for processing (e.g., at RF signal or digital signal level). In some embodiments, the second radio may process the page and data. So, for example, the second radio may notify (report to) the first radio. Likewise, when the second SIM is in use, the second radio can control the data page and for the first SIM. In other embodiments, the second radio may communicate with the network on behalf of the first radio page to receive data and information and then forward the data and information page to the first radio at that time or some time later.

[0097] In various embodiments, the second radio may be configured to assist the first radio with a first-radio operation, further data acquisition for diversity and processing purposes. That is, the second radio can acquire data and processing signals to obtain higher order diversity for the signal being communicated on the first radio. In particular, the second radio may be configured to acquire signals that provide an additional diversity path to the first radio. For example, if the first radio already includes two receive (RX) antennas, the second radio (through its RX antenna) can be configured to provide an additional diversity path from the first radio's two RX antennas, thereby creating a tri-diversity receiver. With this third diversity path made available using the second radio's antenna, the mobile device could either combine the three paths or select the two best paths to be combined for further processing. This higher diversity order signal path can lead to significant UE throughput and QoS gains. So, for example, data samples received via the diversity path (the antenna(s) of the second radio) can be combined with the data path of the first radio at the RF signal level or digital signal level (e.g. , after an analogue to digital converter (ADC) or in the digital interface module in the mobile receiver).

[0098] In specific embodiments, diversity can be further improved due to the separation between the antenna(s) of the first radio and the antenna(s) of the second radio. In particular, because the antenna(s) of the first radio and the antenna(s) of the second radio may have a significant separation distance on the mobile device, the probability of the second radio path measuring diversity of a path will not -Correlation of the first radio antenna is high. This helps maximize diversity on a channel. Improvement is possible regardless of the number of antennas on the first radio; The second radio can always provide another diversity path.

[0099] In various embodiments, the second radio can be configured to assist the first radio with a first radio operation, such as interference management, namely, the absence, coordination, mitigation (cancellation) thereof. In particular, the second radio may be configured to obtain (e.g., measure) information regarding interference from in-band interfering means or interfering means from adjacent carriers whose signals are leaking to in-band carriers.

[0100] In some embodiments, information obtained by the second radio can be used to avoid interference. For example, based on the information obtained by the second radio, the first radio may select another carrier if the interference measured by the second radio is very high (for example, above a predetermined threshold).

[0101] In some embodiments, the information obtained by the second radio can be used for interference reduction or coordination. For example, the second radio may provide information regarding an interference signal obtained to the first radio to assist with interference cancellation techniques implemented by the first radio.

[0102] The information obtained may include (but is not limited to) the interference bandwidth, the number of interferences, the location of the frequency interferer(s), bandwidth power, and/or the like. Such information may be used to adjust or otherwise configure some of the digital filters (or other components) in the first radio (e.g., the receiver interface module (RXFE). In specific embodiments, the information obtained from the interference may configure filters analogs to mitigate interference before a signal reaches the digital baseband.

[0103] In various embodiments, the second radio may be configured to assist the first radio with a first radio operation, such as acquiring system information, which involves determining cell timing (cell identification), acquiring the transmitted signal, detection and decoding purposes, such as E-UTRAN global cell identifier (ECGI) report. In addition to the basic requirements of PCI cell searching, a mobile device may be required to identify and report the ECGI of a target cell (e.g., eNB, HeNB, etc.) based on a request from a serving cell (' reportCGI'), for example, for inbound mobility to a closed subscriber group (CSG) cell and/or ANR so that the target cell can establish neighbor relationships automatically. Therefore, in various embodiments, the second radio may be configured to assist (the first radio) with intra-frequency and inter-frequency E-CGI communication. ECGI reporting requires the mobile device, after identifying the target cell, to detect and decode the transmission signal, such as a master information block (MIB) and a message of system information block type 1 (SIB 1 ), and determine the ECGI of the target cell. This ECGI would then be reported back to the network. Thus, in some embodiments, the second radio may be configured to detect and decode the transmission signal, and determine the ECGI of the target cell. In specific embodiments, the second radio may communicate the ECGI to the network. In other embodiments, the second radio may communicate the ECGI to the first radio, which then communicates the ECGI to the network. Instead of using the second radio, the first radio of the mobile device can make standalone gaps in both downlink reception and uplink transmit to receive the MIB and SIB 1 message. If standalone gaps are used for measurement for the purpose of 'reportCGI ', the mobile device may identify a new CGI of E-UTRA cells within a predetermined threshold or perhaps there is application degradation in the first radio since autonomous gaps are not normally known to the network.

[0104] In various embodiments, the second radio may be configured to assist the first radio with a first radio operation, such as a reference signal frequency difference time difference (RSTD) measurement. Instead of the cell's first radio setting away (thus creating a measurement gap) from a serving frequency and performing inter frequency OTDOA (Observed Time of Arrival Difference) measurements on a target frequency, the second radio can be configured to help the first radio with RSTD measurements to avoid such measurement gaps.

[0105] In various embodiments, the second radio may be configured to assist the first radio with a first radio operation, such as beacon detection for small cell identification (e.g., intra frequency beacon detection). For example, the second radio may be configured to assist in detecting a beacon from a CSG cell or the like. The beacon is a signal that includes a low-energy pilot signal together with a transmit signal that forces mobile devices to move from a radio channel of a macro cell (eNB) to a radio channel of a cell. small (HeNB) (e.g. femto cell, pico cell, etc.). In some embodiments, the second radio may be configured to detect the pilot signal and report to the first radio for decoding the transmit signal. In other embodiments, the second radio may be configured to detect both the pilot signal and the transmit signal.

[0106] In various embodiments, the second radio may be configured to assist the first radio with a first radio operation, such as a measurement minimization test (MDT) unit. In particular, the second radio may be configured to assist the first radio when the network instructs the mobile device to perform an MDT (registered or immediate) measurement (e.g., location measurements, adjacent cell measurements, data volume measurements). , etc.) and send it back to the network. In particular, the second radio may perform MDT measurements requested by the first radio's network on behalf of the first radio. The second radio can process the MDT measurement or report to the first radio for processing thereof.

[0107] In various embodiments, the second radio may be configured to assist the first radio with a first radio operation, such as speed estimation for the mobile device, for example, with respect to intra frequency and inter frequency, and inter mouse scenarios. The speed estimate can be determined for the second radio by measuring a signal similar to that of the first radio and determining the maximum Doppler in the signal component by determining the average rate of passage of the signal or from the rate of phase change. of the signal. The Doppler information can then be used to determine an estimate of speed/velocity. This information can then be passed to the first option to improve channel estimation and/or interference management algorithms on the mobile device and/or be used by the network to optimize mobility performance (e.g., avoid transferring data certain cells).

[0108] In various embodiments, the mobile device may be configured to include radio frequency enhancements to allow the second radio to assist the first radio with a first-radio operation. In specific embodiments, the mobile device may be configured to manage transmission by the radios of the mobile device, while the second radio assists with the operation of the first radio. Figure 14 illustrates a block diagram of an example of a mobile device 1400; (e.g., 606, 702, 702', 1002, 1002', in FIGS. 6, 7, 10, and 11) which has a first radio system 1410 (e.g., 712, 802, 1004 in FIGS. 7, 8, 10) and a second radio system 1460 (e.g., 714, 804, 1006 in figures 7, 8, 10). The first radio system 1410 may include a primary antenna 1412 and a diversity antenna 1422. A main interface module (FEM0) 1416 may be provided between the main antenna 1412 and a first radio transponder 1430. diversity front end module (FEM1) 1426 between the diversity antenna 1422 and the first radio transceiver 1430.

[0109] The second radio system 1460 may include an antenna 1462. The antenna 1462 may be configured for the first radio and the second radio. For example, the antenna 1462 may be a common antenna for the first radio (e.g., LTE) and the second radio (e.g., WiFi).

[0110] The second radio system 1460 may include a plurality of filters, such as a first radio filter (FRF1) 1466 and a second radio filter (FRF2) 1468. The first radio filter 1466 may correspond to a first band (e.g., band 40 (2300-2400 MHz)), and the second first radio filter 1468 may correspond to a second band (e.g., band 38 (2570-2620 MHz)) that is at least partially different from the first band. These filters can help reduce radio interference first.

[0111] The second radio system 1460 may also include a third filter 1470, such as an ISM (industrial, scientific and medical) filter 1470. In some embodiments, the third filter corresponds to a third band (e.g., ISM band (2400 -2490 MHz)) which may be at least partially different from one or more of the first band and the second band. A first switch 1464, such as an IP3 (third order intercept point) switch, may be coupled to an antenna 1462 to receive a signal 1463 received through the antenna 1462 and choose which of the filters 1466, 1468, 1470 receives a corresponding signal. 1465a-1465c. An output signal from the ISM filter 1470 may also be coupled to a second radio transponder 1480 to provide a signal 1471 that corresponds to the signal 1465c (e.g., when the first switch 1464 selects the third filter 1470).

[0112] A filtered signal 1467 from the first first radio filter 1466 (corresponding to signal 1465a) may be provided to the second radio transponder 1480 (e.g., when the first switch 1464 selects the first first radio filter 1466) . A filtered signal 1469 from the second first radio filter 1468 (corresponding to signal 1465b) may be provided to the second radio transponder 1480 (e.g., when the first switch 1464 selects the second first radio filter 1468). In specific embodiments, the mobile device 1400 may include a second switch 1472 coupled to the respective outputs of the first radio filter 1466 and the second radio filter 1468 to select the appropriate filtered signal (1467 or 1469) to provide to the second radio transceiver. radio 1480.

[0113] In specific embodiments, the mobile device 1400 may include a controller 1490 (e.g., the General RF Control (GCRF)) to control one or more of the first switch 1464 and the second switch 1472. Thus, in accordance With various embodiments, the mobile device 1400 may be configured to coordinate the first radio and the second radio. For example, such embodiments may prevent the first radio from transmitting at the same time (and/or the same band in which the antenna 1462 receives a sample (signal) (e.g., performs a measurement) and/or prevent the second radio transmits at the same time that the antenna 1462 receives the sample. In other embodiments, the mobile device 1400 may be configured in a mode suitable for coordinating the first radio and the second radio.

[0114] In various embodiments, the mobile device may be configured to provide information to the network that notifies the network that the mobile device includes second radio (a wireless radio) that can be used to perform first radio operations. In specific embodiments, the information may include the availability of the second radio (e.g., when the second radio is available to support the first radio). In other embodiments, the information may include the time that the second radio is available to support the first radio Thus, in various embodiments, the network may modify measurement gaps based on information (i.e., a schedule of the second radio). For example, the network does not configure measurement gaps when the second radio is available, and the network may require measuring gaps (for the first radio) when the second radio is not available.

[0115] The impact of configuring measurement gaps on uplink (first radio) LTE channels is typically more than a gap length (e.g., 6 ms) of a downlink measurement, due to the timing relationships between some of the LTE downlink and uplink channels (e.g. PDCCH (DCIO), PUSCH, PHICH, etc.). Typically, the maximum loss in throughput due to the unavailability of the mobile device to use these uplink channels could be more than the throughput loss on the downlink channels. By using the second radio to take measurements on behalf of the first radio, mobile device unavailability, and thus loss of throughput, can be avoided.

[0116] For various applications, such as VOIP, the mobile device may implement transmission time slot aggregation (TTI). TTI clustering can be used to reduce latency, for example, when the mobile device is on an edge of a cell or the like. To reduce latency, a group of TTIs (e.g., 4 TTIs of 1 ms each) can be transmitted without determining whether retransmission is needed at a later time. However, because ITTs are transmitted without determining whether transmission is necessary, some ITTs will be redundant or otherwise unnecessary. In particular, without the assistance of the first radio by the second radio, for example, as described in the description, the mobile device can only transmit a portion of the TTI beam that does not overlap with a measurement range. As such, there may be unnecessary beam transmission. Thus, by allowing the second radio to assist the first radio to eliminate the measurement gap for the first radio, the TTI beam in its entirety can be transmitted.

[0117] Figure 15 is a conceptual data flow diagram illustrating 1500 the flow of data between different modules/medium/components of an exemplary apparatus 1502. The apparatus may be a UE (mobile device) (e.g. 606, 702, 702', 1002, 1002', 1400 in figures 6, 7, 10, 11, 14). The apparatus 1502 includes a first radio module 1504 (e.g., 712, 802, 1004, 1410 in Figures 7, 8, 10, 14) that is based on a first radio technology and a second radio module 1506 (e.g., 714, 804, 1006, 1460 in figures 7, 8, 10, 14) which is based on a second radio technology that is different from the first radio technology. The first radio module 1504 includes a receiving module 1510 that receives a command to perform a first radio operation described in the disclosure. The command is received via a signal 1544 transmitted from the apparatus 1540 (e.g., eNB) of the apparatus 1502 and is received with the first radio module 1504 based on the first radio technology.

[0118] In some embodiments, the first radio module 1504 may include a request module 1512 and/or a configuration module 1514. The request module 1512 requests the second radio 1506 to perform the first radio operation. In specific embodiments, the requesting module 1512 requests the availability of the second radio module 1506. The Configuring module 1514 configures the second radio module 1506 to receive signals transmitted based on a radio technology other than the second radio technology (e.g., the first radio technology).

[0119] The second radio module 1506 includes an execution module 1520 that performs at least a portion of the first radio operation on the second radio module 1506. The execution module 1520 includes a receive module 1522 that receives a signal 1532 connected to the operation of the first radio. The signal 1532, for example, may be transmitted from the apparatus 1530 within an adjacent cell or the like, and is based on radio technology other than the second radio technology (e.g., the first radio technology). Accordingly, the second radio module 1506 may be configured to perform a radio-first operation using the radio-first technology. For example, if the first radio technology is LTE and the second radio technology is wireless, the second radio (which is a Wi-Fi radio) can perform an LTE operation on the LTE network. In some embodiments, the execution module 1520 may also include a processing module 1524 for processing the received signal 1532. In such embodiments, the second radio module 1506 may process the received signal 1532 (in alternative or in addition to the first radio module 1504).

[0120] The second radio module 1506 includes a reporting module 1526 reporting the received signal 1532 to the first radio module 1504 for processing thereof, e.g., by the processing module 1530. In specific embodiments, the module processing module 1516 of the first radio module 1504 may be configured by the configuration module 1514. In some embodiments, the reporting module 1526 reporting the signal processed by the processing module 1524 to the first radio module 1504.

[0121] In some embodiments, the first radio module 1504 further includes a transmission module 1518 that transmits the corresponding results for the processed signal (by the processing module 1524 and/or the processing module 1516) to the apparatus 1540 in the serving cell or other network entity. The results are transmitted by a signal 1542 using the first radio module 1504 based on the first radio technology. In other embodiments, the second radio module 1504 includes a transmission module (not shown) for transmitting results corresponding to the transformed signals to the apparatus 1540 or other network entity. One or more of the modules 1510, 1512, 1514, 1518 of the first radio module 1504 functions as a communication module, which allows communication with the first radio module 1504 based on the first radio technology.

[0122] Apparatus 1502 may include additional modules that effect one or more of the features related to Figures 1-15. For example, each of the algorithm steps in the flowchart of Figure 12 may be performed by a module and the apparatus may include one or more of said modules. Modules may be one or more hardware components specifically configured to carry out the indicated process/algorithm, implemented by a processor configured to execute the indicated process/algorithm, stored within a computer readable medium for execution by a processor, or some combination thereof.

[0123] It is understood that the specific order or hierarchy of steps in the described processes is an illustration of exemplary approaches. Based on design preferences, it is understood that the order or hierarchy of steps in specific processes may be changed. Also, some steps that can be combined or omitted. The method accompanying the order presents elements of multiple steps in a sample order, and is not intended to be limited to the specific order or hierarchy presented.

[0124] The foregoing description is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications in these aspects will be readily apparent to those skilled in the art, and the generic principles defined here may be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown here, but must be granted the broadest scope consistent with the language claims, in which reference to an element in the singular is not intended to mean “one and only one” unless which is specifically so stated, but more properly “one or more”. Unless specifically stated otherwise, the term “any” refers to one or more. All structural and functional equivalents for the elements of various aspects described throughout this disclosure that are known or that subsequently come to be known to those of common knowledge in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein should be dedicated to the public regardless of whether such disclosure is explicitly cited in the claims. No claim element should be considered as a means plus function unless the element is expressly cited using the phrase: “means for”.

[0125] It is understood that the specific order or hierarchy of steps in the disclosed processes is an example of exemplary approaches. Based on design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged while remaining within the scope of the present disclosure. The accompanying method claims present elements of the various steps in an exemplary order, and are not intended to limit the specific order or hierarchy presented.

[0126] Those skilled in the art would understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0127] Those skilled in the art will further appreciate that the various illustrative logic blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations thereof. To clearly illustrate this interchangeability of hardware and software, several illustrative components, blocks, modules, circuits, and steps have been described above, generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and design limitations imposed on the overall system. Those skilled in the art may implement the described functionality in different ways for each particular application, but such execution decisions should not be interpreted as causing a departure from the scope of the present disclosure.

[0128] The various illustrative logic blocks, modules, circuits, elements and/or components described in connection with the examples described herein can be implemented or executed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic component, discrete or transistor logic gate, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or conventional state machine. A processor may also be implemented as a combination of computing components, for example, a combination of a DSP and a microprocessor, a number of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other type of configuration.

[0129] The steps of a process or algorithm described in connection with the implementations disclosed herein may be incorporated directly into hardware, into a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An illustrative storage medium is coupled to the processor so that the processor can read information from, and write information to, the storage medium. Alternatively, the storage medium may be an integral part of the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside on a user terminal. Alternatively, the processor and storage medium may reside as discrete components in a user terminal.

[0130] In one or more illustrative implementations, the described functions may be implemented in hardware, software, firmware or any combinations thereof. If implemented in software, functions may be stored or transmitted via one or more instructions or code on a switch-readable medium. Computer readable media include computer storage media and communication media including any medium that facilitates the transfer of a computer program from one location to another. A storage medium can be any available medium that can be accessed by a computer. By way of example, and not by way of limitation, such computer-readable media may comprise RAM, ROM, EEPROM, CD-ROM, or other optical disk media, magnetic disk storage media or other magnetic storage devices, or any other media that can be used to transport or store a desired program code medium in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any connection is properly called a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair wire, DSL, or wireless technologies such as infrared (IR), radio, and microwave are included in the definition of medium. Magnetic disc and optical disc, as used herein, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray® disc where magnetic discs typically reproduce data magnetically, whereas optical discs reproduce data optically with lasers. Combinations of those mentioned above may also be included in the scope of computer-readable media.

[0131] The foregoing description of the described implementations is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these implementations will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other implementations without departing from the spirit or scope of the disclosure. Accordingly, the present invention is not intended to be limited to the implementations presented herein, but is intended to conform to the broadest scope consistent with the innovative principles and features described herein.

Claims (15)

1. Method (B1200) of wireless communication for a mobile device (1500) having at least a first radio (1504) and a second radio (1506), characterized in that it comprises: communicating with the use of the first radio ( 1504) based on an early radio technology; determine (B1210), via the first radio (1504) relative to the second radio (1506) configured based on a second radio technology different from the first radio technology, an availability of the second radio (1506) to assist the first radio (1504) with a first radio operation, wherein the second radio (1506) is determined to be available to assist the first radio (1504) with the first radio operation when the second radio (1506) is performing a first type of task and it is determined that the second radio (1506) is not available to assist the first radio (1504) with first radio operation when the second radio (1506) is performing a second type of task, in which the second radio (1506) ) is configured to stop performing the first type of task in response to a request, from the first radio (1504), of the availability of the second radio (1506) to assist the first radio (1504) with the operation of the first radio; configuring, through the first radio (1504), the second radio (1506) to perform the first radio operation; and performing (B1220) at least a portion of the first radio operation on the second radio (1506), wherein the configuration and performance is done based on the availability of the second radio (1506) to assist the first radio (1504) with the first radio operation. 2. The method of claim 1, wherein the first radio technology is a wireless wide area network technology, WWAN, and the second radio technology is a wireless local area network technology. , WLAN. 3. Method (B1200), according to claim 1, characterized by the fact that the embodiment comprises: receiving, at the second radio (1506), a signal related to the operation of the first radio, wherein the signal is transmitted based on the first radio technology; and process the received signal. 4. Method (B1200), according to claim 3, characterized by the fact that the received signal is processed by one of the second radio (1506), the first radio (1504) and, at least partially, by the first radio ( 1504) and by the second radio (1506). 5. Method (B1200), according to claim 1, characterized by the fact that the first radio operation comprises a measurement of interference affecting a signal in the first radio (1504). 6. Method (B1200), according to claim 1, characterized by the fact that the first radio operation comprises at least one of an inter-frequency measurement, an intra-frequency measurement and an inter-RAT measurement of a neighboring cell. 7. Method (B1200), according to claim 1, characterized by the fact that the mobile device comprises at least two subscriber identity modules, SIMs, associated with the first radio (1504), and the first radio operation comprises acquisition and processing of data and pages associated with one of at least two SIMs. 8. Method (B1200), according to claim 1, characterized by the fact that the first radio (1504) comprises at least one first antenna, the second radio (1506) comprises at least one antenna, and wherein the embodiment comprises : receiving, at the antenna of the second radio (1506), a signal related to the operation of the first radio, wherein the signal is transmitted based on the first radio technology; and processing the received signal as a diversity signal together with signals received by the first antenna of the first radio (1504). 9. Method (B1200), according to claim 8, characterized by the fact that the received signal is processed by the first radio (1504). 10. Method (B1200), according to claim 1, characterized by the fact that the first radio operation is a reference signal time difference measurement, RSTD, comprises flag detection for small cell identification, is a drive test measurement minimization, MDT, or is a speed estimation measurement. 11. Method (B1200), according to claim 1, characterized by the fact that the determination comprises: requesting, through the first radio (1504), the availability of the second radio (1506) to assist the first radio with the operation first radio; and receive the availability of the second radio (1506) based on the request. 12. Method (B1200), according to claim 1, characterized by the fact that the determination comprises: receiving the availability of the second radio (1506) to assist the first radio with the operation of the first radio. 13. Method (B1200), according to claim 1, characterized by the fact that the second radio (1506) is determined to be available when the second radio (1506) is in a standby mode or an idle mode. 14. Method (B1200) according to claim 1, characterized by the fact that the first radio operation comprises at least one of multiple subscriber identity module page monitoring, SIM, and data/page processing, acquisition and higher order diversity data processing, interference measurement and management, determination and reporting of global cell identifier, ECGI, of E-UTRAN, a reference signal time difference measurement, RSTD, flag detection for identification small cell measurement, a drive test measurement minimization, MDT, and a speed estimation measurement. 15. Wireless communication system (1502) comprised in a mobile device, characterized in that it comprises: a first radio (1504) for communication based on a first radio technology; a second radio (1506) configured based on a second radio technology different from the first radio technology, wherein the first radio (1504) is configured to determine, relative to the second radio (1506), an availability of the second radio ( 1506) to assist the first radio (1504) with a first radio operation, wherein the second radio (1506) is determined to be available to assist the first radio (1504) with the first radio operation when the second radio is performing a first type of task and it is determined that the second radio (1506) is not available to assist the first radio (1504) with first radio operation when the second radio (1506) is performing a second type of task, in which the second radio (1506) is configured to stop performing the first type of task in response to a request from the first radio (1504) for the availability of the second radio (1506) to assist the first radio (1504) with the operation of the first radio, wherein the first radio (1504) is configured to configure the second radio (1506) to perform the first radio operation based on the availability of the second radio (1506) to assist the first radio (1504) with the first radio operation radio and the second radio (1506) is configured to perform at least a portion of the first radio operation based on the availability of the second radio (1506) to assist the first radio (1504) with the first radio operation.