BR112016016698B1 - METHODS FOR IDENTIFYING CELLS BEING PROHIBITED FROM SERVING AS A PRIMARY CELL IN A SHARED ACCESS, BASE STATION, MOBILE DEVICE, AND COMPUTER READABLE MEMORY RADIO FREQUENCY SPECTRUM - Google Patents

Abstract

METHOD FOR IDENTIFYING CELLS BEING PROHIBITED FROM SERVING AS A PRIMARY CELL IN A SHARED ACCESS RADIO FREQUENCY SPECTRUM. Techniques are described for wireless communication. A method includes determining that a cell operates in a shared access radio frequency spectrum, and transmitting signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based at least in part on the determination that the cell operates in the shared access radio frequency spectrum. Another method includes receiving signaling information on a mobile device from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell, and identifying the cell as prohibited from serving as a primary serving cell. a primary serving cell based at least in part on received signaling information. Another method includes identifying, by a mobile device, a cell operating in a shared access radio frequency spectrum as a secondary serving cell based at least in part on information stored in the mobile device.

Description

REFERENCES

[0001] The present patent application claims priority to US patent application no. 14/529,997 to Ji et al., “Techniques for identifying secondary serving cells operating in shared access radio frequency spectrum,” filed October 31, 2014; and US provisional patent application no. 61/929,479 by Ji et al., entitled “Techniques for identifying secondary serving cells operating in shared access radio frequency spectrum,” filed on January 20, 2014; each of which is assigned to the assignee hereof.

FIELD OF REVELATION

[0002] The present disclosure, for example, relates to wireless communication systems, and more particularly to techniques for identifying secondary service cells operating in a shared access radio frequency spectrum.

DESCRIPTION OF RELATED TECHNIQUE

[0003] Wireless communication systems are widely used to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be multiple access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, and frequency division multiple access (FDMA) systems. by orthogonal frequency division (OFDMA).

[0004] For example, a wireless multiple access communication system may include multiple base stations, each simultaneously supporting communication for multiple mobile devices. A base station can communicate with mobile devices on downlink channels (e.g., for transmissions from a base station to a mobile device) and uplink channels (e.g., for transmissions from a mobile device to a base station).

[0005] Some modes of communicating with a mobile device may enable communication with the mobile device over different radio frequency spectrum (e.g., licensed radio frequency spectrum and/or shared radio frequency spectrum). Some modes of communication with a mobile device may also enable communication with the mobile device through a primary serving cell (e.g., a first frequency component carrier) and optionally, one or more secondary serving cells (e.g., a second or third frequency component carriers). In some conditions, cells in different service may communicate with the mobile device over different radio frequency spectrum.

SUMMARY

[0006] The present disclosure, for example, relates to one or more techniques for identifying secondary service cells that operate in a shared access radio frequency spectrum. In some examples, certain frequencies and/or cells in service may be less reliable for handling control signals (e.g., due to the radio frequency used, interference, return transport channel conditions, etc.). In some examples, frequencies from a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of mobile network operators (MNOs) are authorized to access) and/or cells communicating over such shared access radio frequency spectrum may be less reliable for handling control signals. Therefore, it may be useful to indicate that such frequencies may not be used by a mobile device to select a primary serving cell (or that such frequencies may be used to select one or more secondary serving cells) or that such cells are prohibited from serve as primary cells (or that such cells may operate as secondary service cells).

[0007] In a first set of illustrative examples, a first method for wireless communication is described. In one example, the method may include determining that a cell operates in a shared access radio frequency spectrum, and transmitting signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based on at least part in determining that the cell operates in the shared access radio frequency spectrum.

[0008] In some examples of the method, transmitting the signaling information may include transmitting the signaling information using dedicated signaling resources. In these examples, the signaling information may include radio resource control (RRC) signaling information. Also, the signaling information may indicate one or more frequencies of the shared access radio frequency spectrum that the mobile device should not monitor when the mobile device is in an RRC idle state.

[0009] In some examples of the method, one or more frequencies of the shared access radio frequency spectrum may not be assigned a cell reselection priority.

[00010] In some examples of the method, transmitting the signaling information may include broadcasting the signaling information. In the same or other examples, the signaling information may indicate that the mobile device is prohibited from accessing the cell as a primary serving cell for a period of time.

[00011] In some examples, the method may include determining one or more frequency bands of the shared access radio frequency spectrum are not suitable for selection of a primary service cell. One or more frequency bands may include a frequency used by the cell. In these examples, at least a portion of the signaling information may include one or more frequency band identifiers or channel identifiers that uniquely identify one or more frequency bands of the shared access radio frequency spectrum.

[00012] In some examples, the method may include determining that a frequency band of the shared access radio frequency spectrum is not suitable for selection of a primary service cell. The frequency range may include a frequency used by the cell. In these examples, at least a portion of the signaling information may include one of a plurality of frequency band identifiers or channel identifiers that identify the frequency band of the shared access radio frequency spectrum.

[00013] In some examples of the method, transmitting the signaling information may include transmitting the signaling information using a primary synchronization signal (PSS), a secondary synchronization signal (SSS), or a cell reference signal (CRS). ). In other examples, transmitting the signaling information may include transmitting the signaling information using a free channel assessment (CCA) exempt transmission (CET) frame.

[00014] In some examples of the method, signaling information may be transmitted in a master information block (MIB). In some examples, signaling information may be transmitted using one or more information elements added to the MIB. In some examples, signaling information may be transmitted in a system information block (SIB). In some examples, signaling information may be transmitted using one or more information elements added to the SIB. In some examples, a frequency band identifier may be used to indicate that the cell is prohibited from serving as a primary serving cell.

[00015] In some examples, the method may include preventing a handover from the mobile device to the cell based at least in part on determining that the cell operates in the shared access radio frequency spectrum when the mobile device is in an RRC connected state. . In the same or other examples, the signaling information may indicate one or more frequencies of the shared access radio frequency spectrum that are unavailable for cell reselection consideration when the mobile device is in an RRC idle state.

[00016] In some examples, the method may include receiving a request from the mobile device to access the cell operating in the shared access radio frequency spectrum, and rejecting the request to access the cell operating in the shared access radio frequency spectrum. In these examples, transmitting the signaling information may include transmitting a cause value to the mobile device indicating that the cell is prohibited from serving as a primary serving cell.

[00017] In a second set of illustrative examples, an apparatus for wireless communication is described. In one example, the apparatus may include means for determining that a cell operates in a shared access radio frequency spectrum. The apparatus may also include means for transmitting signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based at least in part on the determination that the cell operates in the shared access radio frequency spectrum. In certain examples, the apparatus may further include means for implementing one or more aspects of the method for wireless communication described above with respect to the first set of illustrative examples.

[00018] In a third set of illustrative examples, another apparatus for wireless communication is described. In one example, the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. Instructions may be executable by the processor to determine that a cell operates in a shared access radio frequency spectrum, and to transmit signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based on at least in part in determining that the cell operates in the shared access radio frequency spectrum. In certain examples, the instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above with respect to the first set of illustrative examples.

[00019] In a fourth set of illustrative examples, a computer program product for communicating by a wireless communication apparatus in a wireless communication system is described. In one example, the computer program product may include a non-transitory computer-readable medium that stores instructions executable by a processor to cause the wireless communication apparatus to determine a cell to operate in a shared access radio frequency spectrum. and transmits signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based at least in part on the determination that the cell operates in the shared access radio frequency spectrum. In certain examples, the instructions may also be executable by the processor to cause the wireless communication apparatus to implement one or more aspects of the method for wireless communication described above with respect to the first set of illustrative examples.

[00020] In a second set of illustrative examples, a second method for wireless communication is described. In one example, the method may include receiving signaling information on a mobile device from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell, and the mobile device identifying the cell as prohibited from serving as a primary serving cell based at least in part on the signaling information received.

[00021] In some examples of the method, signaling information may be received through dedicated signaling resources. In the same or other examples of the method, signaling information may be received via RRC signaling. Also, the signaling information may indicate one or more frequencies of the shared access radio frequency spectrum that the mobile device should not monitor when the mobile device is in an RRC idle state.

[00022] In some examples of the method, the signaling information may indicate that the mobile device is prohibited from accessing the cell as a primary serving cell for a period of time.

[00023] In some examples of the method, at least a portion of the signaling information may include one or more frequency band identifiers or channel identifiers that uniquely identify one or more frequency bands of the shared access radio frequency spectrum. One or more frequency bands may include a frequency used by the cell. In these examples, the method may include determining that one or more frequency bands of the shared access radio frequency spectrum are not suitable for selection of a primary serving cell.

[00024] In some examples of the method, at least a portion of the signaling information may include one of a plurality of frequency band identifiers or channel identifiers that identify a frequency fix of the shared access radio frequency spectrum. The frequency range may include a frequency used by the cell. In these examples, the method may include determining that the frequency band of the shared access radio frequency spectrum is not suitable for selection of a primary serving cell.

[00025] In some examples of the method, the signaling information may indicate one or more frequencies of the shared access radio frequency spectrum that are unavailable for cell reselection consideration when the mobile device is in an RRC idle state.

[00026] In a sixth set of illustrative examples, another apparatus for wireless communication is described. In one example, the apparatus may include means for receiving signaling information on a mobile device from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell. The apparatus may also include means for identifying the cell as prohibited from serving as a primary serving cell based at least in part on the received signaling information. In certain examples, the apparatus may further include means for implementing one or more aspects of the method for wireless communication described above with respect to the fifth set of illustrative examples.

[00027] In a seventh set of illustrative examples, another apparatus for wireless communication is described. In one example, the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. Instructions may be executable by the processor to receive signaling information on a mobile device from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell. Instructions may also be executable by the processor to identify the cell as prohibited from serving as a primary serving cell based at least in part on the signaling information received. In certain examples, the instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above with respect to the fifth set of illustrative examples.

[00028] In an eighth set of illustrative examples, another computer program product for communicating by a wireless communication apparatus in a wireless communication system is described. In one example, the computer program product may include a non-transitory computer readable medium storing instructions executable by a processor for causing the wireless communication apparatus to receive signaling information on a mobile device from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell. Instructions may also be executable by the processor to cause the wireless communication apparatus to identify the cell as prohibited from serving as the primary serving cell based at least in part on the received signaling information. In certain examples, instructions may also be executable by the processor to cause the wireless communication apparatus to implement one or more aspects of the method for wireless communication described above with respect to the fifth set of illustrative examples.

[00029] In a ninth set of illustrative examples, a third method for wireless communication is described. In one example, the method may include identifying, by a mobile device, a cell operating in a shared access radio frequency spectrum as prohibited from serving as a primary cell based at least in part on information stored in the mobile device.

[00030] In a tenth set of illustrative examples, an apparatus for wireless communication is described. In one example, the apparatus may include means for identifying, by a mobile device, a cell operating in a shared access radio frequency spectrum as prohibited from serving as a primary serving cell based at least in part on information stored in the mobile device. .

[00031] In an eleventh set of illustrative examples, another apparatus for wireless communication is described. In one example, the method may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. Instructions may be executable by the processor to identify, by a mobile device, a cell operating in a shared access radio frequency spectrum as prohibited from serving as a primary serving cell based at least in part on information stored in the mobile device.

[00032] In a twelfth set of illustrative examples, a computer program product for communicating by a wireless communication apparatus in a wireless communication system is described. In one example, the computer program product may include a non-transitory computer-readable medium that stores instructions executable by a processor to cause the wireless communication apparatus to identify, for a mobile device, a cell operating in a spectrum of shared access radio frequency as prohibited from serving as a primary serving cell based at least in part on information stored on the mobile device.

[00033] The above has very broadly outlined the characteristics and technical advantages of examples according to the disclosure so that the detailed description that follows can be better understood. Additional features and benefits will be described below. The specific designs and examples disclosed can be readily used as a basis for modifying or designing other structures to accomplish the same purposes as the present disclosure. Such equivalent constructions do not depart from the spirit and scope of the appended claims. Aspects believed to be characteristic of the concepts disclosed herein, both with respect to their organization and method of operation, together with associated advantages will be better understood from the following description when considered in relation to the attached figures. Each of the figures is provided for purposes of illustration and description only, and not as a definition of the limits of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

[00034] A further understanding of the nature and advantages of the present invention can be achieved by reference to the following drawings. In the accompanying figures, similar components or aspects may have the same reference label. Additionally, multiple components of the same type can be distinguished by following the reference label by a dash and a second label that distinguishes between similar components. If only the first reference label is used in the specification, the description is applicable to any of the similar components having the same first reference label independent of the second reference label.

[00035] Figure 1 shows a block diagram of a wireless communication system, in accordance with various aspects of the present disclosure;

[00036] Figure 2 shows a wireless communication system in which LTE/LTE-A is used in different scenarios using shared access radio frequency spectrum, in accordance with various aspects of the present disclosure;

[00037] Figure 3 shows a wireless communication system in which LTE/LTE-A is used in an independent mode using shared access radio frequency spectrum, in accordance with various aspects of the present disclosure;

[00038] Figure 4 is a flowchart illustrating an example of a method for wireless communication in which a mobile device can be operated according to an RRC idle state and an RRC connected state, in accordance with various aspects of the present disclosure;

[00039] Figure 5 illustrates an example of wireless communication between a mobile device and a primary serving cell (PCell) when the mobile device is in an RRC idle state, in accordance with various aspects of the present disclosure;

[00040] Figure 6 illustrates an example of wireless communication between a mobile device, a primary serving cell, and a number of secondary serving cells when the mobile device is in an RRC connected state and operating in a wireless communication mode. carrier aggregation, in accordance with various aspects of the present disclosure;

[00041] Figure 7 shows a message flow between a mobile device and a PCell, in accordance with various aspects of the present disclosure;

[00042] Figure 8 shows a message flow between a mobile device and a PCell, in accordance with various aspects of the present disclosure;

[00043] Figure 9 shows a message flow between a mobile device, a PCell, a first neighboring cell, and/or a second neighboring cell, in accordance with various aspects of the present disclosure;

[00044] Figure 10 shows a message flow between a mobile device, a PCell, a first neighboring cell and/or a second neighboring cell, in accordance with various aspects of the present disclosure;

[00045] Figure 11 shows a message flow between a mobile device, a PCell, a first neighboring cell and/or a second neighboring cell, in accordance with various aspects of the present disclosure;

[00046] Figure 12 shows a block diagram of an apparatus for use in wireless communication, in accordance with various aspects of the present disclosure;

[00047] Figure 13 shows a block diagram of an apparatus for use in wireless communication, in accordance with various aspects of the present disclosure;

[00048] Figure 14 shows a block diagram of an apparatus for use in wireless communication, in accordance with various aspects of the present disclosure;

[00049] Figure 15 shows a block diagram of an apparatus for use in wireless communication, in accordance with various aspects of the present disclosure;

[00050] Figure 16 shows a block diagram of an apparatus for use in wireless communication, in accordance with various aspects of the present disclosure;

[00051] Figure 17 shows a block diagram of an apparatus for use in wireless communication, in accordance with various aspects of the present disclosure;

[00052] Figure 18 shows a block diagram of a base station (e.g., an eNB) for use in wireless communication, in accordance with various aspects of the present disclosure;

[00053] Figure 19 shows a block diagram of a mobile device (e.g., a UE) for use in wireless communication, in accordance with various aspects of the present disclosure;

[00054] Figure 20 is a flowchart illustrating an example of a method for wireless communication (e.g., by a base station or cell in accordance with various aspects of the present disclosure);

[00055] Figure 21 is a flowchart illustrating an example of a method for wireless communication (e.g., by a base station or cell), in accordance with various aspects of the present disclosure;

[00056] Figure 22 is a flowchart illustrating an example of a method for wireless communication (e.g., by a base station or cell) in accordance with various aspects of the present disclosure;

[00057] Figure 23 is a flowchart illustrating an example of a method for wireless communication (e.g., by a base station or cell), in accordance with various aspects of the present disclosure;

[00058] Figure 24 is a flowchart illustrating an example of a method for wireless communication (e.g., by a mobile device), in accordance with various aspects of the present disclosure; It is

[00059] Figure 25 is a flowchart illustrating an example of a method for wireless communication (e.g., by a mobile device), in accordance with various aspects of the present disclosure.

DETAILED DESCRIPTION

[00060] Techniques are described for identifying secondary service cells operating in a shared access radio frequency spectrum. In some examples, certain frequencies and/or cells in service may be less reliable for handling control signals (e.g., due to the radio frequency used, interference, return transport channel conditions, etc.). In some examples, frequencies from a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for unlicensed use, such as a Wi-Fi radio frequency spectrum , and/or radio frequency spectrum that a plurality of MNOs are authorized to access) and/or cells communicating over such shared access radio frequency spectrum may be less reliable for handling control signals. Therefore, it may be useful to indicate that such frequencies may not be used by a mobile device to select a primary serving cell (or that such frequencies may not be used to select one or more secondary serving cells) or that such cells are prohibited to serve as primary cells (or that such cells can operate with secondary serving cells).

[00061] Techniques described here can be used for various wireless communication systems such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms “system” and “network” are often used interchangeably. A CDMA system can implement a radio technology such as CDM2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 releases 0 and A are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes wideband CDMA (WCDMA) and other CDMA variants. A TDMA system can implement a radio technology such as Global System for Mobile Communications (GSM). An OFDMA system can implement radio technology such as Ultra Mobile Broadband (UMB), Developed UTRA (E-UTRA), IEEE 802.11 (WiFi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM™, etc. UTRA and E-UTRA are part of the universal Mobile Telecommunications System (UMTS). Long-Term Evolution 3GPP (LTE) and LTE-Advanced (LTE-A) are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization called the “3rd Generation Society Project” (3GPP). CDMA2000 and UMB are described in documents from an organization called “3rd Generation Society Project 2” (3GPP2). The techniques described here can be used for the radio systems and technologies mentioned above as well as other radio systems and technologies. The description below, however, describes an LTE system for example purposes, and LTE terminology is used throughout much of the description below, although the techniques are applicable beyond LTE applications.

[00062] The following description provides examples, and is not limiting the scope, applicability or configuration set out in the claims. Changes may be made to the function and arrangement of discussed elements without departing from the scope of the disclosure. Various embodiments may omit, replace, or add various procedures or components as appropriate. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Also, features described with respect to certain embodiments may be combined in other examples.

[00063] Figure 1 shows a block diagram of a wireless communication system 100, in accordance with various aspects of the present disclosure. The wireless communication system 100 may include a plurality of base stations 105 (e.g., eNBs), a number of mobile devices 115 (e.g., user equipment (UEs)), and a core network 130. Some of the stations base 105 may communicate with mobile devices 115 under the control of a base station controller (not shown), which may be part of the core network 130 or certain of the base stations 105 in various examples. Some of the base stations 105 may communicate control information and/or user data with the core network 130 via backhaul channel 132. In some examples, some of the base stations 105 may communicate, directly or indirectly, with each other via of backhaul links 134, which may be wired or wireless communication links. The wireless communication system 100 may support operation on multiple carriers (waveform signals of different frequencies). Multicarrier transmitters can transmit modulated signals simultaneously on multiple carriers. For example, each communication link 125 may be a multicarrier signal modulated in accordance with various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (e.g. reference signals, control channels, etc.), overhead information, data, etc.

[00064] Base stations 105 may communicate wirelessly with mobile devices 115 through one or more base station antennas. Each of the base stations 105 may provide communications coverage for a respective geographic area 110. In some examples, a base station 105 may be referred to as an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a NodeB, evolved NodeB (eNB), native NodeB, a native eNodeB, a WLAN access point, a Wi-Fi node or some other suitable terminology. The coverage area 110 for a base station 105 may be divided into sectors comprising only a portion of the coverage area (not shown). The wireless communication system 100 may include base stations 105 of different types (e.g., macro, micro, and/or peak base stations). The base stations 105 may also utilize different radio technologies, such as cellular radio access technologies and/or WLAN. The base stations 105 may be associated with the same or different access networks or carrier deployments. The coverage areas of different base stations 105, including coverage areas of the same or different types of base stations 105, using the same or different radio technologies, and/or belonging to the same or different access networks, may overlap.

[00065] In some examples, the wireless communication system 100 may include an LTE/LTE-A communication system (or network), which LTE/LTE-A communication system may support one or more modes of operation or deployment in a licensed radio frequency spectrum (e.g., a radio frequency spectrum to which devices do not compete for access because the spectrum is licensed to specific users for specific uses) and/or shared access radio frequency spectrum (e.g., a licensed radio frequency spectrum to which devices compete for access because the radio frequency spectrum is available for unlicensed use, such as Wi-Fi radio frequency spectrum and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In other examples, the wireless communication system 100 may support wireless communication using an access technology other than LTE/LTE-A. In LTE/LTE-A communication systems, the term Evolved Node B or eNB may be, for example, used to describe base stations 105.

[00066] The wireless communication system 100 may be or include a heterogeneous LTE/LTE-A network in which different types of base stations 105 provide coverage for various geographic regions. For example, each base station 105 may provide communications coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell. Small cells such as pico cells, femto cells, and/or other cell types may include low-power nodes or LPNs. A macro cell typically covers a relatively large geographic area (e.g., several kilometers in radius) and can allow unrestricted access by UEs with service subscriptions with the network provider. A pico cell would, for example, cover a relatively smaller geographic area and may allow unrestricted access by UEs with service subscriptions with the network provider. A femto cell would also cover, for example, a relatively small geographic area (e.g., a house) and, in addition to unrestricted access, may also provide restricted access by UEs having an association with the femto cell (e.g., UEs in a group of closed subscribers (CSG), UEs for users at home and similar). An eNB for a macro cell can be referred to as a macro eNB. An eNB for a pico cell can be referred to as a pico eNB. And, an eNB for a femto cell can be referred to as a femto eNB or a native eNB. An eNB may support one or multiple (e.g., two, three, four, and the like) cells.

[00067] The core network 130 may communicate with the base stations 105 via a backhaul channel 132 (e.g., application protocol S1, etc.). The base stations 105 may also communicate with each other, for example, directly or indirectly via backhaul links 134 (e.g., application protocol X2, etc.) and/or via backhaul links. 132 (e.g., via core network 130). The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, eNBs can have similar frame timing and/or gating, and transmissions from different eNBs can be approximately time aligned. For asynchronous operation, eNBs may have different frame timing and/or gating, and transmissions from different eNBs may not be time aligned. The techniques described here can be used for synchronous or asynchronous operations.

[00068] Mobile devices 115 may be dispersed throughout the wireless communication system 100. A mobile device 115 may also be referred to by those skilled in the art as a user equipment (UE), a mobile station, a subscriber station , a mobile unit, a subscriber unit, a wireless unit, a remote unit, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a telephone handset, a user agent, a mobile client, a client, or some other suitable terminology. A mobile device 115 may be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless telephone, a wearable item such as a watch or glasses, a wireless local loop station (WLL) or similar. A mobile device 115 may be capable of communicating with macro eNBs, pico eNBs, femto eNBs, relays, and the like. A mobile device 115 may also be capable of communicating over different types of access networks, such as cellular or other WWAN access networks, or WLAN access networks. In some modes of communicating with a mobile device 115, communication may be conducted over a plurality of communication links 125 or channels (i.e., component carriers) with each channel using a component carrier between the mobile device and one of a number of cells (e.g., cells in service, which in some cases may be different base stations 105).

[00069] Each component carrier may be used over the licensed radio frequency spectrum or shared access radio frequency spectrum, and a set of component carriers used in a specific communication mode may all be received (For example, in a mobile device 115 ) over the licensed radio frequency spectrum, or be received (e.g., on a mobile device 115) over a combination of licensed radio frequency spectrum and shared access radio frequency spectrum.

[00070] Communication links 125 shown in wireless communication system 100 may include uplink channels (using component carriers) to carry uplink (UL) communications (e.g., transmissions from a mobile device 115 to a base station 105 ), and/or downlink channels (using component carriers) to carry downlink (DL) communications (e.g., transmissions from a base station 105 to a mobile device 115). UL communications or transmissions may also be called reverse link communications or transmissions, while DL communications or transmissions may also be called forward link communications or transmissions. Downlink communications and/or uplink communications may be made using a licensed radio frequency spectrum, a shared access radio frequency spectrum, or both.

[00071] In some examples of the wireless communication system 100, LTE/LTE-A can be used in different scenarios using shared access radio frequency spectrum. Deployment scenarios may include a supplemental downlink mode in which LTE/LTE-A downlink communications in a licensed radio frequency spectrum can be offloaded to a shared access radio frequency spectrum, a carrier aggregation mode in which both LTE/ LTE-A downlink as well as uplink can be offloaded from a licensed radio frequency spectrum to a shared access radio frequency spectrum, and an independent mode in which LTE/LTE-A downlink and uplink communications between a base station and a mobile device can occur in one shared access radio frequency spectrum. Base stations 105 as well as mobile devices 115 may support one or more of these modes of operation or similar modes of operation. OFDMA waveforms may be used in communication links 125 for LTE/LTE-A downlink communications in a licensed radio frequency spectrum and/or shared access radio frequency spectrum, while OFDMA, SC-FDMA and/or interleaved FDMA waveforms resource block may be used on communication links 125 for LTE/LTE-A uplink communications in a licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[00072] Figure 2 shows a wireless communication system 200 in which LTE/LTE-A is used in different scenarios using shared access radio frequency spectrum, in accordance with various aspects of the present disclosure. More specifically, Figure 2 illustrates examples of a supplemental downlink mode in which LTE/LTE-A is deployed using shared access radio frequency spectrum. The wireless communication system 200 may be an example of portions of the wireless communication system 100 described with reference to Figure 1. Additionally, the base station 205 may be an example of aspects of one or more of the base stations 105 described with reference to FIG. reference to figure 1, while the first mobile device 215, a second mobile device 215-a, and a third mobile device 215-b may be examples of aspects of one or more of the mobile devices 115 described with reference to figure 1.

[00073] In the example of a supplemental downlink mode in wireless communication system 200, the base station 205 may transmit OFDMA waveforms to the first mobile device 215 using a downlink channel 220. The downlink channel 220 may be associated with a frequency F1 in a shared access radio frequency spectrum. The base station 205 may transmit OFDMA waveforms to the first mobile device 215 using a first bidirectional link 225 and may receive SC-FDMA waveforms from the first mobile device 215 using the first bidirectional link 225. The first bidirectional link 225 may be associated with an F4 frequency in a licensed radio frequency spectrum. The downlink channel 220 in the shared access radio frequency spectrum and the first bidirectional link 225 in the licensed radio frequency spectrum may operate simultaneously. The downlink channel 220 may provide offload of downlink capacity to the base station 205. In some examples, the downlink channel 220 may be used for unicast services (e.g., addressed to a mobile device) or for multicast services (e.g., addressed to multiple mobile devices). This scenario can occur with any service provider (e.g. MNO) that uses a licensed radio frequency spectrum and needs to alleviate some traffic and/or signaling congestion.

[00074] In an example of a carrier aggregation mode in wireless communication system 200, base station 205 may transmit OFDMA waveforms to second mobile device 215-a using a second bidirectional link 230 and may receive OFDMA waveforms. OFDMA waveform, SC-FDMA waveform, and/or resource block interleaved FDMA waveform from the second mobile device 215-a using the second bidirectional link 230. The second bidirectional link 230 may be associated with the F1 frequency on the shared access radio frequency spectrum. The base station 205 may also transmit OFDMA waveforms to the second UE mobile device 215-a using a third bidirectional link 235 and may receive SC-FDMA waveforms from the second mobile device 215-a using the third bidirectional link 235 The third bidirectional link 235 may be associated with a frequency F2 in a licensed radio frequency spectrum. The second bidirectional link 230 may provide an offload of downlink and uplink capacity to the base station 205. Like the supplemental downlink mode described above, this scenario may occur with any service provider (e.g., MNO) that uses a licensed radio frequency spectrum. and need to alleviate some traffic and/or signal congestion.

[00075] In another example of a carrier aggregation mode in wireless communication system 200, base station 205 may transmit OFDMA waveforms to third mobile device 215-b using a fourth bidirectional link 240 and may receive OFDMA waveforms. OFDMA waveform, SC-FDMA waveform, and/or resource block interleaved waveform from the third mobile device 215-b using the fourth bidirectional link 240. The fourth bidirectional link 240 may be associated with frequency F3 in a spectrum shared access radio frequency. The base station 205 may also transmit OFDMA waveforms to the third mobile device 215b using a fifth bidirectional link 245 and may receive SC-FDMA waveforms from the third mobile device 215-b using the fifth bidirectional link 245. The fifth bidirectional link 245 may be associated with frequency F2 in the licensed radio frequency spectrum. The fourth bidirectional link 240 may provide an offload of downlink and uplink capacity to the base station 205. This example and those provided above are presented for illustrative purposes and there may be other modes of operation or similar deployment scenarios that combine LTE/LTE- A in licensed radio frequency spectrum and shared access radio frequency spectrum for offloading capacity.

[00076] As described above, one type of service provider that can benefit from the capacity offload offered by the use of LTE/LTE-A in a shared access radio frequency spectrum is a traditional MNO having access rights to a radio frequency spectrum licensed LTE/LTE-A. For such service providers, an operational example may include a bootstrapped mode (e.g., supplemental downlink, carrier aggregation) that uses the LTE/LTE-A core component carrier (PCC) in the licensed radio frequency spectrum and at least one carrier of LTE secondary component (SCC) in the shared access radio frequency spectrum.

[00077] In carrier aggregation mode, data and control may, for example, be communicated in the licensed radio frequency spectrum (e.g., via first bidirectional link 225, third bidirectional link 235, and fifth bidirectional link 245) while data may , for example, be communicated in the shared access radio frequency spectrum (e.g., via second bidirectional link 230 and fourth bidirectional link 240). The carrier aggregation mechanisms supported when using a shared access radio frequency spectrum may be comprised of a hybrid frequency division duplexing-time division duplexing (FDD-TDD) carrier aggregation or a TDD-TDD carrier aggregation. with different symmetry across component carriers.

[00078] Figure 3 shows a wireless communication system 300 in which LTE/LTE-A is used in an independent mode using shared access radio frequency spectrum, in accordance with various aspects of the present disclosure. The wireless communication system 300 may be an example of portions of the wireless communication system 100 and/or 200 described with reference to Figure 1 and/or 2. Additionally, the base station 305 may be an example of aspects of a or more of the base stations 105 and/or 205 described with reference to Figure 1 and/or 2, while the mobile device 315 may be an example of aspects of one or more of the mobile devices 115 and/or 215 described with reference to Figure 1 and/or 2.

[00079] In the example of an independent mode in the wireless communication system 300, the base station 305 may transmit OFDMA waveforms to the mobile device 315 using a bidirectional link 320 and may receive OFDMA waveforms, SC- 2. Independent mode can be used in non-traditional wireless access scenarios such as stadium access (e.g. unicast, multicast). An example of a type of service provider for this mode of operation might be a stadium owner, cable company, event host, hotel, corporation, or large commercial corporation that does not have access to a licensed radio frequency spectrum.

[00080] When a mobile device is operated in a wireless communication system such as the wireless communication system 100, 200 and/or 300 described with reference to Figure 1, 2 and/or 3, the mobile device may, in some cases be operated according to various radio resource control (RRC) states.

[00081] Figure 4 is a flowchart illustrating an example of a method 400 for wireless communication, in which a mobile device can be operated in accordance with an RRC idle state and an RRC connected state, in accordance with various aspects of the present disclosure. . For clarity, method 400 is described below with reference to one or more of the mobile devices 115, 215 and/or 315 described with reference to Figure 1, 2 and/or 3. In some examples, a mobile device such as one of the mobile devices 115, 215, and/or 315 may execute one or more sets of codes to control functional elements of the mobile device to perform the functions described below.

[00082] In block 405, the mobile device can connect. After powering on, the mobile device may search for a cell (e.g., a base station) to access (e.g., a cell in which to “camp” (e.g., a cell from which the mobile device can synchronize and receive control communications, and a cell through which the mobile device can identify itself to a wireless communication system)). When camping in a cell (e.g., a serving cell), the mobile device may operate in an idle mode and/or low power mode, in which the mobile device may be activated (e.g., actively connected), e.g. , by a service request from the mobile device or by a paging request received from a base station (e.g., a base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3). After finding a cell in which to camp, the mobile device may enter an RRC idle state at block 410. While in an RRC idle state, the mobile device may perform cell reselection, as may be required, for example, as a result of device mobility and/or changing conditions at the mobile device, base station, and/or communication link between the mobile device and the base station.

[00083] In block 415, the mobile device may periodically, and/or upon the occurrence of one or more events, determine whether there is a reason to enter an RRC connected state. One reason to enter an RRC connected state is to communicate with the serving cell in which the mobile device is camped, for the purposes of making or receiving a call, transmitting or receiving data, etc. After determining that there is a reason to enter an RRC connected state, the mobile device may enter an RRC connected state at block 420. After determining that there is no reason to enter an RRC connected state, the mobile device may remain in a inactive RRC. While in an RRC connected state, the mobile device may be handovered to another serving cell, as may be required, for example, as a result of device mobility and/or a change in conditions at the mobile device, the base station, and/or the communication link between the mobile device and base station.

[00084] In block 425, the mobile device may periodically and/or upon the occurrence of one or more events, determine whether there is reason to enter (e.g., return to) an RRC idle state. One reason to enter an RRC idle state is because there is no longer a need to actively communicate with the serving cell in which the mobile device is camped, and thus it may be preferable to operate in an RRC idle state to save power. After determining that there is reason to return to an RRC idle state, the mobile device may again enter an RRC idle state at block 410. After determining that there is no reason (or ability) to enter an RRC idle state, the mobile device may remain in an RRC connected state.

[00085] Figure 5 illustrates an example 500 of wireless communication between a mobile device 515 and a primary serving cell (PCell) 510 when the mobile device 515 is in an RRC idle state, in accordance with various aspects of the present disclosure. The mobile device 515 may be an example of one or more aspects of the mobile device 115, 215 and/or 315 described with reference to Figure 1, 2 and/or 3. The PCell 510 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3.

[00086] Wireless communication between the mobile device 515 and the PCell 510 may occur via a communication link 525, which may be an example of one of the communication links described with reference to Figure 1, 2 and/or 3.

[00087] At some point in time, and for reasons such as device mobility and/or a change in conditions at the mobile device 515, the PCell 510 and/or the communication link between the mobile device 515 and the PCell 510, the device mobile 515 may perform cell reselection. When performing cell reselection, the mobile device 515 may evaluate whether one or more neighboring cells (e.g., NCell_0520 and/or NCell_1 530) may be available to serve as the PCell for the mobile device 515. In this regard, the device The mobile device 515 may identify the NCell_0 520 and/or the NCell_1 530 based on information stored in the mobile device 515 and may acquire one or more measurements pertinent to the PCell 510, the NCell_0 520 and/or the NCell_1 530. Each of the NCell_0 520 and/or or NCell_1 530 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3.

[00088] Based on the stored information, one or more measurements made, and/or signaling information received from one or more of the PCell 510, the NCell_0 520 and/or the NCell_1 530, the mobile device 515 may determine that none, a or more than one neighboring cell (e.g., NCell_0 520 and/or NCell_1 530) are available to serve as the PCell for the mobile device 515 and select another cell in which to camp in an RRC idle state.

[00089] Figure 6 illustrates an example 600 of wireless communication between a mobile device 615, a primary serving cell (PCell) 610, and a number of secondary serving cells (SCells; e.g., SCell_0 620 and/or SCell_1 630) when the mobile device 615 is in an RRC connected state and operating in a carrier aggregation communication mode, in accordance with various aspects of the present disclosure. The mobile device 615 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b and/or 515 described with reference to Figure 1, 2 and/or 5. Each of PCell 610, SCell_0 620 , and/or SCell_1 630 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or the PCell 510, NCell_0 520 and/or or NCell_1 530 described with reference to figure 5.

[00090] Wireless communication between the mobile device 615 and PCell 610 may occur via a first communication link 625; wireless communication between the mobile device 615 and the SCell_0 620 may occur via a second communication link 635; and/or wireless communication between the mobile device 615 and the SCell_1 630 may occur via a third communication link 645. Each of the communication links may be an example of one of the communication links described with reference to Figures 1, 2 and /or 3.

[00091] The mobile device 615 may enter an RRC connected state with the PCell 610, at which time communication links with the SCell_0 620 and the SCell_1 630 may not yet be established. When operating in a carrier aggregation mode, the mobile device 615 can establish communication with the SCell_0 620 and the SCell_1 630 after establishing communication with the PCell 610. The number of SCells that the mobile device 615 can communicate with while communicating with a PCell 610 may vary, and in some examples may include five SCells.

[00092] At some point in time, and for reasons such as device mobility and/or a change in conditions in the mobile device 615, the PCell 610, and/or the first communication link 625 between the mobile device 615 and the PCell 610 , the mobile device 615 may be handovered to another serving cell. Before being handovered, the mobile device 615 may provide one or more measurement reports to the PCell 610, and the PCell 610 may evaluate, based at least in part on one or more measurement reports, whether one or more cells neighbors (e.g., NCell_0 640, NCell_1 650, SCell_0 620 and/or SCell 630) should be the new PCell for the mobile device 615. Each of the NCell_0 640 and/or the NCell_1 650 may be an example of one or more operated cells by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or the PCell 510, the NCell_0 620 and/or the NCell_1 630 described with reference to Figure 5.

[00093] Based on stored information and/or one or more measurement reports, the PCell 610 may determine that none, one or more of a neighboring cell (e.g., NCell_0 640, NCell_1 650, SCell_0 620 and/or SCell_1 630 ) may serve as the new PCell for the mobile device and may select another cell for handover of the mobile device 615 in an RRC connected state. The PCell 610 can also determine whether NCell_0 and/or NCell_1 is suitable for adding as another SCell (or replacement).

[00094] Figure 7 shows a message flow 700 between a mobile device 715 and a PCell 710, in accordance with various aspects of the present disclosure. The mobile device 715 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515 and/or 615 described with reference to Figure 1, 2, 3, 5 and/or 6. The PCell 710 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or one or more aspects of the PCell 510 and/or or 610 described with reference to figure 5 and/or 6.

[00095] Message flow 700 may begin with the mobile device 715 and the PCell 710 in an RRC 720 connected state. While in the RRC 720 connected state, the mobile device 715 and/or PCell 710 may transmit control signals and/or data.

[00096] In block 725, the PCell 710 may determine that at least one cell (e.g., at least one neighboring cell) operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum for which devices may need compete for access because radio frequency spectrum is available for unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). Cells operating in the shared access radio frequency spectrum may be identified as prohibited from serving as PCells.

[00097] Although the PCell 710 is shown as determining that at least one cell operates in the shared access radio frequency spectrum while the mobile device 715 and the PCell 710 are in the RRC 720 connected state, the PCell 710 may alternatively, or also, determine that at least one cell operates in the shared access radio frequency spectrum before the mobile device 715 and PCell 710 are in the RRC connected state 720 (e.g., in the RRC idle state). In some examples, the PCell 710 may determine that at least one cell operates in the shared access radio frequency spectrum based on information stored in the base station operating the PCell 710.

[00098] At one or more points in time while the mobile device 715 and the PCell 710 are in the RRC 720 connected state, the PCell 710 may transmit signaling information 730 (e.g., RRC signaling information) to the mobile device 715. Signaling information 730 may be transmitted using dedicated signaling resources. Signaling information 730 may indicate that at least one cell is prohibited from serving as a PCell (or that at least one cell may operate as a SCell), based at least in part on a determination in block 725 that at least one cell operates in the shared access radio frequency spectrum. The signaling information 730 may also indicate, for example, that one or more frequencies of the shared access radio frequency spectrum are unavailable for consideration of cell reselection as a PCell when the mobile device 715 is in an RRC idle state. For example, mobile device 715 may not reselect one or more frequencies in the shared access radio frequency spectrum for PCell reselection consideration in the future. In another example, signaling information 730 may include a list of frequencies in the shared access radio frequency spectrum that may not be considered for future PCell selection. One or more frequencies may in some cases be identified based at least in part on a determination, in block 725, that one or more cells operate using one or more frequencies.

[00099] A SCell may be prohibited from serving as a PCell. However, one or more SCells identified in signaling information 730, and/or one or more other cells (which one or more other cells may or may not have already been identified as SCells) may be used by the mobile device 715 as SCells while in the state connected RRC 720 (e.g., in a carrier aggregation mode of the mobile device 715).

[000100] While the mobile device 715 and the PCell 710 are in the RRC 720 connected state, the mobility of the mobile device 715 can be managed through the PCell 710. As part of the mobility management of the PCell mobile device 715, the PCell 710 can ensure that the mobile device 715 is delivered to a cell that is not prohibited from operating as a PCell. The PCell 710 may also configure measurement objects of the mobile device 715 to ensure that the measurement objects do not acquire PCell measurements for cells that are prohibited from serving as a PCell and/or frequencies of cells that are prohibited from serving as PCells. For example, the PCell 710 may provide a list of cells and/or frequencies that are prohibited from serving as PCells (or providing PCells) to the mobile device 715 to ensure that the mobile device 715 does not acquire PCell measurements for cells and/or frequencies. on the list. However, following a radio link failure (RLF), the Pcell 710 may lose its ability to manage the mobility and measurements of the mobile device 715.

[000101] An RLF may occur during or outside of a handover of the mobile device 715. As an example, message flow 700 shows an RLF 745 occurring after the start (but before the end) of a handover procedure 735. At some point During the handover procedure 735, the PCell 7100 may transmit to the mobile device 715 signaling information (e.g., RRC signaling information) including a list of prepared cells 740. The list of prepared cells 740 may be transmitted using signaling resources dedicated. The list of prepared cells 740 may include cells that are capable of serving as a PCell for the mobile device 715.

[000102] After the RLF 745, the mobile device 715 may determine in block 750 whether the list of prepared cells 740 has been received. When it is determined that the list of prepared cells has been received, the mobile device 715 may, in block 755, attempt to access one of the prepared cells using, for example, a Random Access Channel (RACH) procedure.

[000103] When it is determined that the list of prepared cells has not been received, the mobile device 715 may transition to an RRC idle state at block 760 and initiate cell reselection at block 756. During cell reselection, the device mobile 715 may determine whether signaling information received from PCell 710 (e.g., signaling information 730) and/or other information indicates that a cell is in a SCell and/or determine whether signaling information 730 and/or other information indicates that one or more frequencies of a shared access radio frequency spectrum are unavailable for cell reselection, and to avoid consideration of such cells or frequencies during cell reselection. After identifying an available cell for cell reselection, the mobile device 715 may attempt to access the cell in block 770 using a RACH procedure.

[000104] Figure 8 shows a message flow 800 between a mobile device 815 and a PCell 810, in accordance with various aspects of the present disclosure. The mobile device 815 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615 and/or 715 described with reference to Figure 1, 2, 3, 5, 6 and/or 7. The PCell 810 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or one or more aspects of the PCell 510, 610 and/or 710 described with reference to figure 5, 6 and/or 7.

[000105] Message flow 800 may begin with the mobile device 815 and the PCell 810 in an RRC 820 connected state. While in the RRC 820 connected state, the mobile device 815 and/or PCell 810 may transmit control signals and/or data.

[000106] In block 825, a base station operating the PCell 810 may determine that at least one cell (e.g., at least one neighboring cell) operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum for which devices may need to compete for access because radio frequency spectrum is available for unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). Cells operating in the shared access radio frequency spectrum may be identified as prohibited from serving as PCells (or as cells operating as SCells). In some examples, operation(s) 825 may include determining a frequency or component carrier used by at least one cell operating in the shared access radio frequency spectrum. Although the PCell 810 is shown as determining that at least one cell operates in the shared access radio frequency spectrum while the mobile device 815 and the PCell 810 are in the RRC 820 connected state, the PCell 810 may alternatively or also determine that at least one cell operates in the shared access radio frequency spectrum before the mobile device 815 and PCell 810 are in the RRC 820 connected state. In some examples, the PCell 810 may determine that at least one cell operates in the shared access radio frequency spectrum based on information stored for the PCell 810.

[000107] In block 830, the base station operating the PCell 810 may assign a cell reselection priority (e.g., a priority of 0 to 7, where a priority of 0 receives higher priority for cell reselection and a priority of 7 assigns lowest priority for cell reselection) to at least one frequency available for cell reselection or initial access, while not assigning a cell reselection priority to at least one frequency used by a cell that operates in the shared access radio frequency spectrum (e.g., as determined in block 825).

[000108] At one or more points in time while the mobile device 815 and the PCell 810 are in the RRC 820 connected state, the PCell 810 may transmit signaling information (e.g., RRC signaling information) to the mobile device 815. Signaling information can be transmitted using dedicated signaling resources. In another example, the signaling information may be broadcast. In some examples, the signaling information may include a list of frequencies having cell reselection priorities 835 that indicate one or more frequencies that are available for cell reselection (or serve as PCells) when the mobile device 815 is in a RRC idle state. The signaling information may also indicate one or more frequencies of the shared access radio frequency spectrum that the mobile device 815 should not monitor when the mobile device 815 is in an RRC idle state. In some examples, a frequency that the mobile device 815 is not intended to monitor may be indicated by a lack of inclusion in the list of frequencies or by an absence of a cell reselection priority assigned to the frequency.

[000109] In another example of the signaling information, the signaling information may explicitly indicate one or more cells or frequencies of the shared access radio frequency spectrum that the mobile device 815 should not monitor when the mobile device 815 is in an RRC idle state . In this example, the signaling information may also indicate that the mobile device 815 is prohibited from accessing one or more cells (operating on the same or different frequencies) or frequencies (at least for the purposes of identifying or accessing a PCell) for a period of time (e.g. 300 seconds or 3 days).

[000110] In block 840, the mobile device 815 may transition to an RRC idle state 845. The mobile device 815 may transition to an RRC idle state 845 because, for example, there are no control signals and/or data that require be transmitted between the mobile device 815 and the PCell 810.

[000111] While in the idle state RRC 845, and in block 850, the mobile device 815 may initiate new cell selection. Cell reselection may be initiated for various reasons, such as device mobility and/or a change in conditions in the mobile device 815, the PCell 810, and/or the communication link between the mobile device 815 and the PCell 810. The new cell selection initiated in block 850 may be initiated in accordance with the signaling information, including, for example, a list of frequencies having cell reselection priorities 835 received in the signaling information.

[000112] Figure 9 shows a message flow 900 between a mobile device 915 a PCell 910, a first neighboring cell (NCell_0) 920, and/or a second neighboring cell (NCell_1) 930, in accordance with various aspects of the present disclosure . The mobile device 915 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715 and/or 815 described with reference to Figure 1, 2, 3, 5, 6, 7 and/or 8. The PCell 910 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or a or more aspects of the PCell 510, 610, 710 and/or 810 described with reference to Figure 5, 6, 7 and/or 8. In some examples, two or more of the PCell 910, NCell-0 920 and/or NCell_1 930 may be provided by a single base station and/or eNB.

[000113] Message flow 900 may start with the mobile device 915 and the PCell 910 in an idle state RRC 935 (e.g., with the mobile device 915 camped on the PCell 910), or with the mobile device 915) having no connection to a PCell (e.g., with mobile device 915 not camped on any PCell).

[000114] Optionally, in block 940, mobile device 915 may identify any cell known to be operating in a shared access radio frequency spectrum as being prohibited from serving as a PCell (although the cell may operate as a SCell). In some examples, a cell may be identified as a cell operating in a shared access radio frequency spectrum based at least in part on information stored in the mobile device 915, such as one or more frequency band identifiers (e.g., numbers of frequency band) and/or channel identifiers (e.g., channel numbers) that uniquely identify one or more corresponding frequency bands of the shared access radio frequency spectrum, which one or more frequency bands are determined to be prohibited from serving like a PCell. The use of frequency band identifiers and/or channel identifiers that uniquely identify one or more corresponding frequency bands of the shared access radio frequency spectrum may be useful in prohibiting the mobile device 915 from seeking one or more frequency bands for purposes of new cell selection, initial access, etc.

[000115] IN block 925, a base station operating NCell_0 920 may determine whether at least NCell_0 920 operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to contend for access because radio frequency spectrum is available for unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, the NCell_0 920 may determine whether at least the NCell_0 920 operates in the shared access radio frequency spectrum based on information stored at the base station operating the NCell_0. The NCell_0 920 can determine whether at least the NCell_0 920 operates in the shared access radio frequency spectrum at any time, and the timing of the block 925 is merely an exemplary timing.

[000116] When the base station operating the NCell_0 920 determines that at least the NCell_0 920 operates in the shared access radio frequency spectrum, the NCell_0 920 may prepare signaling information for transmission in block 945. The signaling information may be prepared as cell acquisition signaling information and may indicate that the NCell_0 920 is prohibited from serving as a PCell (or that the NCell_0 920 may operate as a SCell). As an example, signaling information can be broadcast to all mobile devices in the NCell_0 920 coverage area.

[000117] In block 950, mobile device 915 may initiate new cell selection or an initial access procedure. For example, cell reselection may be initiated for various reasons, such as device mobility and/or a change in conditions in the mobile device 915, the PCell 910, and/or the communication link between the mobile device 915 and the PCell 910 In another example, an initial access procedure may be initiated, for example, because the mobile device 915 is turned on or because the mobile device moves from an area where no cellular service is provided to an area where cellular service is provided. The cell reselection or initial access procedure initiated in block 950 may be initiated according to the cell identifications, if any, made in block 940. Cells identified in block 940 may not be considered for cell reselection or initial access .

[000118] After initiation of the cell reselection or initial access procedure, the mobile device 915 may identify the NCell_0 920 as an available cell to perform cell reselection or initial access and receive first acquisition signaling information 955 from the NCell_0 920. The first cell acquisition signaling information 955 may be transmitted by the NCell_0 920 using, for example, a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a cell reference signal (CRS ), a developed cell reference signal (eCRS), and/or a clear channel evaluation (CCA) exempt transmission (CET) frame that is encoded or modified to indicate that the NCell_0 920 is prohibited from serving as a PCell (or that NCell_0 920 can operate as a SCell).

[000119] After receiving and decoding the first cell acquisition signaling information 955, the mobile device 915 may determine in block 960, based at least in part on the first cell acquisition signaling information 955, that the NCell_0 920 is prohibited from serving as a PCell (or that the NCell_0 920 can operate as a Scell). After making this determination, the mobile device 915 may select another cell (e.g., NCell_1 930) to perform cell reselection procedure or an initial access and receive second cell acquisition signaling information 965 from NCell_1 930.

[000120] The second cell acquisition signaling information 965 may be transmitted by the NCell_1 930 using, for example, a PSS, an SSS, a CRS, an eCRS, and/or a CET frame. The second cell acquisition signaling information 965 may indicate whether the NCell_1 930 is prohibited from serving as a PCell (or that the NCell_1 930 may operate as a SCell). If the second cell acquisition signaling information 965 does not indicate that the NCell_1 930 is prohibited from serving as a PCell (or that the NCell_1 930 is a SCell), the mobile device 915 may continue its initial access or reselection procedure. cell, with NCell_1, in block 970. Otherwise, if the second cell acquisition signaling information 965 indicates that the NCell_1 930 is prohibited from serving as a PCell (or that the NCell_1 930 is a SCell), the mobile device 915 may select another cell (e.g., PCell 910) to perform new cell selection or an initial access procedure.

[000121] By indicating in cell acquisition signaling information whether a cell is prohibited from serving as a PCell (or that the cell may operate as a SCell), by cell flexibility in indicating a cell type (e.g., PCell capable or only SCell capable) can be provided. In some examples, one MNO may use cell acquisition signaling information to designate a frequency as prohibited from serving as a PCell, while another MNO may use cell acquisition signaling information to designate the frequency as prohibited from serving as a PCell. (e.g. for independent operation). In other examples, an MNO may also use cell acquisition signaling information to designate certain cells, but not others, as prohibited from serving as a PCell.

[000122] Figure 10 shows a message flow 1000 between a mobile device 1015 a PCell 1010, a first neighboring cell (NCell_0) 1020, and/or a second neighboring cell (NCell_1) 1030, in accordance with various aspects of the present disclosure . The mobile device 1015 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815 and/or 915 described with reference to Figure 1, 2, 3, 5, 6, 7, 8 and/or 9. The PCell 1010 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or one or more aspects of the PCell 510, 610, 710, 810 and/or 910 described with reference to Figure 5, 6, 7, 8 and/or 9. In some examples, two or more of the PCell 1010, NCell- 0 1020 and/or NCell_1 1030 can be provided by a single base station and/or eNB.

[000123] Message flow 1000 may begin with the mobile device 1015 and the PCell 1010 in an RRC idle state 1035 (e.g., with the mobile device 1015 docked at the PCell 1010), or with the mobile device 1015 having no connection to a PCell (e.g., with mobile device 1015 not camped on any PCell).

[000124] Optionally, in block 1040, mobile device 1015 may identify any cell known to be operating in a shared access radio frequency spectrum as being prohibited from serving as a PCell (although the cell may operate as a SCell). In some examples, a cell may be identified as a cell operating in a shared access radio frequency spectrum based at least in part on information stored in the mobile device 1015, such as one or more frequency band identifiers (e.g., numbers of frequency band) and/or channel identifiers (e.g., channel numbers) that uniquely identify one or more corresponding frequency bands of the shared access radio frequency spectrum, which one or more frequency bands are determined to be prohibited from serving like a PCell. The use of frequency band identifiers and/or channel identifiers that uniquely identify one or more corresponding frequency bands of the shared access radio frequency spectrum may be useful in prohibiting the mobile device 1015 from seeking one or more frequency bands for purposes of new cell selection, initial access, etc.

[000125] IN block 1025, a base station operating the NCell_0 1020 may determine whether at least the NCell_0 1020 operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to contend for access because radio frequency spectrum is available for unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, the NCell_0 1020 may determine whether at least the NCell_0 1020 operates in the shared access radio frequency spectrum based on information stored in the base station operating the NCell_0 1020. The NCell_0 1020 may determine whether at least the NCell_0 1020 operates in the shared access radio frequency spectrum at any time, and the timing of block 1025 is merely exemplary timing.

[000126] When the base station operating the NCell_0 1020 determines that at least the NCell_0 1020 operates in the shared access radio frequency spectrum, the NCell_0 1020 may prepare signaling information for transmission in block 1045. The signaling information may be prepared as cell acquisition signaling information and may indicate that the NCell_0 1020 is prohibited from serving as a PCell (or that the NCell_0 1020 may operate as a SCell). The signaling information may also include acquisition signaling information. As an example, signaling information can be broadcast to all mobile devices in the NCell_0 1020 coverage area.

[000127] In block 1050, mobile device 1015 may initiate new cell selection or an initial access procedure. For example, cell reselection may be initiated for various reasons, such as device mobility and/or a change in conditions in the mobile device 1015, the PCell 1010, and/or the communication link between the mobile device 1015 and the PCell 1010 In another example, an initial access procedure may be initiated, for example, because the mobile device 1015 is turned on or because the mobile device moves from an area where no cellular service is provided to an area where cellular service is provided. The cell reselection or initial access procedure initiated in block 1050 may be initiated according to the cell identifications, if any, made in block 1040. Cells identified in block 1040 may not be considered for cell reselection or initial access .

[000128] After initiation of the cell reselection or initial access procedure, the mobile device 1015 may identify the NCell_0 1020 as an available cell to perform cell reselection or initial access and receive first acquisition signaling information 1055 from the NCell_0 1020. The first cell acquisition signaling information 1055 may be transmitted by the NCell_0 1020 using, for example, a PSS, an SSS, a CRS, an eCRS, and/or a CET.

[000129] After receiving the first cell acquisition signaling information 1055, the mobile device 1015 may receive first broadcast signaling information 1060 from the NCell_0 1020. The first broadcast signaling information 1060 may be broadcast by the NCell_0 1020 on a broadcast channel (e.g., a physical broadcast channel (PBCH)), e.g., in a master information block (MIB) (e.g., in one or more information elements of, or added to, the MIB) and/ or a system information block (SIB) (e.g., in one or more information elements of, or added to, the SIB). The first broadcast signaling information 1060 may indicate that the NCell_0 1020 is prohibited from serving as a PCell (or that the NCell_0 1020 may operate as a SCell). In some examples, the first broadcast signaling information 1060 may be in the form of transmitting a MIB or SIB without a RACH configuration (e.g., because a mobile device cannot camp in a cell for which a RACH configuration is not provided). . Although transmission of a MIB or SIB without a RACH configuration may not be backwards compatible for some mobile devices, for those mobile devices, and in some examples, the mobile device may not continue an access procedure for a cell when the mobile device does not receive a RACH configuration for the cell. In other examples, an information element added to a MIB or SIB may include, for example, one of a plurality of frequency band identifiers and/or channel identifiers that identify a frequency band of the shared access radio frequency spectrum, whose frequency band of the shared access radio frequency spectrum is determined to include a frequency used by NCell_0 1020. When a frequency fix is associated with a plurality of frequency band identifiers and/or channel identifiers, a first MNO may use a first of the plurality of frequency band identifiers and/or channel identifiers, a first MNO may use a first of the plurality of frequency band identifiers and/or channel identifiers to designate the frequency band as being prohibited from serving as a PCell and a second MNO may use a second of frequency band identifiers and/or channel identifiers to designate the frequency band as being serviceable as a PCell (e.g., for independent operation).

[000130] After receiving and decoding the first broadcast signaling information 1060, the mobile device 1014 may determine in block 1065, based at least in part on the first broadcast signaling information 1060, that the NCell_0 1020 is prohibited from serving as a PCell (or that the NCell_0 1020 can be selected as a Scell). After making this determination, the mobile device 1015 may select another cell (e.g., NCell_1 1030) to perform cell reselection procedure or an initial access and receive second cell acquisition signaling information 1070 from NCell_1 1030.

[000131] The second cell acquisition signaling information 1070 may be transmitted by the NCell_1 1030 using, for example, a PSS, an SSS, a CRS, an eCRS, and/or a CET frame. Upon receipt of the second cell acquisition signaling information 1070, the mobile device 1015 may receive second broadcast signaling information 1075 from the NCell_1 1030. The second broadcast signaling information may be broadcast by the NCell_1 1030 via a broadcast, for example, in a MIB (e.g., in one or more information elements of, or added to, the MIB) and/or a SIB (e.g., in one or more information elements of, or added to, the SIB ). The second broadcast signaling information 1075 may indicate whether the NCell_1 1030 is prohibited from serving as a PCell (or that the NCell_1 1030 may operate as a SCell). If the second broadcast signaling information 1075 does not indicate that the NCell_1 1030 is prohibited from serving as a PCell (or that the NCell_1 may operate as a Scell), the mobile device 1015 may continue its initial access or cell reselection procedure. , with NCell_1, in block 1080. Otherwise, if the second broadcast signaling information 1075 indicates that the NCell_1 1030 is prohibited from serving as a PCell (or that the NCell_1 may operate as a SCell), the mobile device 1015 may select another cell (for example, PCell 1010) to perform cell reselection or an initial access procedure.

[000132] By indicating in broadcast signaling information whether a cell is prohibited from serving as a PCell (or that the cell may operate as a SCell), by cell flexibility in indicating a cell type (e.g., PCell capable or only SCell capable) can be provided. In some examples, one MNO may use broadcast signaling information to designate a frequency as prohibited from serving as a PCell, while another MNO may use broadcast signaling information to designate the frequency as prohibited from serving as a PCell (e.g., for independent operation). In other examples, an MNO may also use broadcast signaling information to designate certain cells, but not others, as prohibited from serving as a PCell.

[000133] Figure 11 shows a message flow 1100 between a mobile device 1115 a PCell 1110, a first neighboring cell (NCell_0) 1120, and/or a second neighboring cell (NCell_1) 1130, in accordance with various aspects of the present disclosure . The mobile device 1115 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915 and/or 1015 described with reference to Figure 1, 2, 3, 5, 6, 7, 8, 9 and/or 10. The PCell 1110 may be an example of one or more cells operated by the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and /or 3, and/or one or more aspects of the PCell 510, 610, 710, 810, 910 and/or 1010 described with reference to Figure 5, 6, 7, 8, 9 and/or 10. In some examples, two or more of the PCell 1110, NCell-0 1120 and/or NCell_1 1130 may be provided by a single base station and/or eNB.

[000134] Message flow 1100 may start with the mobile device 1115 and the PCell 1110 in an RRC idle state 1135 (e.g., with the mobile device 1115 docked at the PCell 1110), or with the mobile device 1115 having no connection to a PCell (e.g., with mobile device 1115 not camped on any PCell).

[000135] Optionally, in block 1140, mobile device 1115 may identify any cell known to be operating in a shared access radio frequency spectrum as being prohibited from serving as a PCell (although the cell may operate as a SCell). In some examples, a cell may be identified as a cell operating in a shared access radio frequency spectrum based at least in part on information stored in the mobile device 1115, such as one or more frequency band identifiers (e.g., numbers of frequency band) and/or channel identifiers (e.g., channel numbers) that uniquely identify one or more corresponding frequency bands of the shared access radio frequency spectrum, which one or more frequency bands are determined to be prohibited from serving like a PCell. The use of frequency band identifiers and/or channel identifiers that uniquely identify one or more corresponding frequency bands of the shared access radio frequency spectrum may be useful in prohibiting the mobile device 1115 from seeking one or more frequency bands for purposes of new cell selection, initial access, etc.

[000136] IN block 1125, a base station operating the NCell_0 1120 may determine whether at least the NCell_0 1120 operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to contend for access because radio frequency spectrum is available for unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, the NCell_0 1120 may determine whether at least the NCell_0 1120 operates in the shared access radio frequency spectrum based on information stored in the base station operating the NCell_0 1120. The NCell_0 1120 may determine whether at least the NCell_0 1120 operates in the shared access radio frequency spectrum at any time, and the timing of block 1125 is merely exemplary timing.

[000137] When the base station operating the NCell_0 1120 determines that at least the NCell_0 1120 operates in the shared access radio frequency spectrum, the NCell_0 1120 may prepare signaling information for transmission in block 1145. The signaling information may be prepared as cell acquisition signaling information and may indicate that the NCell_0 1120 is prohibited from serving as a PCell (or that the NCell_0 1120 may operate as a SCell).

[000138] In block 1150, mobile device 1115 may initiate new cell selection or an initial access procedure. For example, cell reselection may be initiated for various reasons, such as device mobility and/or a change in conditions in the mobile device 1115, the PCell 1110, and/or the communication link between the mobile device 1115 and the PCell 1110 In another example, an initial access procedure may be initiated, for example, because the mobile device 1115 is turned on or because the mobile device moves from an area where no cellular service is provided to an area where cellular service is provided. The cell reselection or initial access procedure initiated in block 1150 may be initiated according to the cell identifications, if any, made in block 1140. Cells identified in block 1140 may not be considered for cell reselection or initial access .

[000139] After initiation of the cell reselection or initial access procedure, the mobile device 1115 may identify the NCell_0 1120 as an available cell to perform cell reselection or initial access and receive first acquisition signaling information 1155 from the NCell_0 1120. The first cell acquisition signaling information 1155 may be transmitted by the NCell_0 1120 using, for example, a PSS, an SSS, a CRS, an eCRS, and/or a CET.

[000140] After receiving the first cell acquisition signaling information 1155, the mobile device 1115 may receive first broadcast signaling information 1160 from the NCell_0 1120. The first broadcast signaling information 1160 may be broadcast by the NCell_0 1120 over a broadcast channel in, for example, a MIB (e.g., in one or more information elements of, or added to the MIB) and/or a SIB (e.g., in one or more information elements of, or added to the SIB).

[000141] Upon receipt of the first broadcast signaling information 1160, the mobile device 1115 may transmit a request 1165 to access the NCell_0 1120 (For example, an RRC connection request). In response, and based at least in part on the determination in block 1125, the NCell_0 1120 may reject the request 1165 to access the NCell_0 1120 by transmitting access rejection signaling information 1170 that indicates that the NCell_0 1120 is prohibited from serving as a PCell (or that the NCell_0 can operate as a SCell). The access rejection signaling information 1170 may, in some examples, include a rejection cause value. In some examples, the access rejection signaling information 1170 may indicate that the NCell_0 1120 is prohibited from serving as a PCell for a period of time (e.g., 300 seconds or 3 days). In an example, some mobile devices (e.g., a mobile device operating under LTE/LTE-A release 12 and earlier) may not understand the rejection cause value, and thus such mobile device may discontinue access from the NCell_0 1120 as a PCell. However, in some examples, a legacy rejection cause value may be used to provide LTE/LTE-A release 12 and earlier accounting.

[000142] After receiving and decoding the access rejection signaling information 1170, the mobile device 1115 may determine in block 1175, based at least in part on the access rejection signaling information 1170, that the NCell_0 1120 is prohibited from serve as a PCell (or that the NCell_0 1020 can operate as a Scell). After making this determination, the mobile device 1115 may select another cell (e.g., NCell_1 1130) to perform cell reselection procedure or an initial access and receive second cell acquisition signaling information 1180 from NCell_1 1130.

[000143] The second cell acquisition signaling information 180 may be transmitted by the NCell_1 1130 using, for example, a PSS, an SSS, a CRS, an eCRS, and/or a CET frame. Upon receipt of the second cell acquisition signaling information 1180, the mobile device 1115 may receive second broadcast signaling information 1185 from the NCell_1 1130. The second broadcast signaling information may be broadcast by the NCell_1 via a broadcast channel , for example, in a MIB (e.g., in one or more information elements of, or added to, the MIB) and/or a SIB (e.g., in one or more information elements of, or added to, the SIB) . Upon receipt of the second broadcast signaling information 1185, the mobile device 1115 may transmit a request 1190 to access the NCell_1 1130 (e.g., an RRC connection request). If the NCell_1 1130 can be operated as a PCell, the NCell_1 1130 can transmit access acceptance signaling information 1195.

[000144] Figure 12 shows a block diagram 1200 of an apparatus 1205 for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, the apparatus 1205 may be an example of one or more aspects of the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and may operate the PCell 510, 610, 710, 810, 910, 1010 and/or 1110 described with reference to figure 5, 6, 7, 8, 9, 10 and/or 11, and/or the NCell 520, 530, 640, 650, 920, 930, 1020, 1030 , 1120 and/or 1130 described with reference to Figure 5, 6, 9, 10 and/or 11, and/or the SCell 620 and/or 630 described with reference to Figure 6. The apparatus 1205 may also be an example of a or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915, 1015 and/or 1115 described with reference to Figure 1, 2, 3, 5, 6, 7, 8, 9, 10 and/or 11. Device 1205 may also be a processor. Apparatus 1205 may include a receiver module 1210, a cell reselection and/or access management module 1220, and/or a transmitter module 1230. Each of these components may be in communication with each other.

[000145] The components of apparatus 1205 may, individually or collectively, be implemented using one or more application-specific integrated circuits (ASICs) adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., platform/structured ASICs, Field Programmable Gate Arrays (FPGAs), and other semi-custom ICs), which may be programmed in any mode known in the art. . The functions of each unit can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more application-specific or general processors.

[000146] In some examples, the receiver module 1210 may include a radio frequency (RF) receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio frequency spectrum (e.g., a radio frequency spectrum for which devices do not compete for access because the radio frequency spectrum is licensed to specific users for specific uses) and/or a shared access radio frequency spectrum (for example, a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for unlicensed use, such as WiFi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communications, as described, for example, with reference to Figure 2 and/or 3. The receiver module 1210 may be used to receive various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system 100, 200, 300, 500 and/or 600 described with reference to FIG. 1, 2, 3, 5 and/or 6. Communication links may be established through licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000147] In some examples, the transmitter module 1230 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio frequency spectrum and/or shared access radio frequency spectrum. The transmitter module 1230 may be used to transmit various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system. wireless communication 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established via the licensed radio frequency spectrum and/or radio frequency spectrum shared access.

[000148] In examples of apparatus 1205, in which apparatus 1205 is configured as a base station that operates a PCell, NCell and/or SCell, the cell reselection and/or access management module 1220 may be used to determine whether a cell (which cell may include part or all of the apparatus 1205 and/or another cell) operates in the shared access radio frequency spectrum. The cell reselection and/or access management module 1220 may also be used to transmit signaling information to a mobile device via the transmitter module 1230. The signaling information may be based at least in part on determining that the cell operates in the shared access radio frequency spectrum and may indicate that the cell is prohibited from serving as a PCell (or that the cell may operate as a SCell).

[000149] In examples of apparatus 1205, in which apparatus 1205 is configured as a mobile device, cell reselection and/or access management module 1220 may be used to receive signaling information from a base station. Signaling information may be received via receiver module 1210 and may indicate that a cell operating in the shared access radio frequency spectrum is prohibited from serving as a PCell (or that the cell may operate as a SCell). The cell reselection and/or access management module 1220 may also be used to identify that the cell is prohibited from serving as a PCell (or as a cell operable as a SCell) based at least in part on signaling information. received.

[000150] In other examples of the apparatus 1205, in which the apparatus 1205 is configured as a mobile device, the cell reselection and/or access management module 1220 may be used to identify that a cell operating in a spectrum of shared access radio frequency is prohibited from serving as a PCell (or as a cell operable as a SCell) based at least in part on information stored on the mobile device.

[000151] Figure 13 shows a block diagram 1300 of an apparatus 1305 for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, the apparatus 1305 may be an example of one or more aspects of the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or one or more aspects of the apparatus 1205 described with reference to figure 12, and can operate the PCell 510, 610, 710, 810, 910, 1010 and/or 1110 described with reference to figure 5, 6, 7, 8, 9, 10 and/or 11, and/or the NCell 520, 530, 640, 650, 920, 930, 1020, 1030, 1120 and/or 1130 described with reference to figure 5, 6, 9, 10 and/or 11, and/or the SCell 620 and/or 630 described with reference to Figure 6. Apparatus 1305 may also be a processor. Apparatus 1305 may include a receiver module 1310, a cell reselection and/or access management module 1320, and/or a transmitter module 1330. Each of these components may be in communication with each other.

[000152] The components of apparatus 1305 may, individually or collectively, be implemented using one or more application-specific integrated circuits (ASICs) adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., platform/structured ASICs, Field Programmable Gate Arrays (FPGAs), and other semi-custom ICs), which may be programmed in any mode known in the art. . The functions of each unit can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more application-specific or general processors.

[000153] In some examples, the receiver module 1310 may include at least one RF receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio frequency spectrum (e.g., a radio frequency spectrum for which devices do not compete access because the radio frequency spectrum is licensed to specific users for specific uses) and/or a shared access radio frequency spectrum (for example, a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for unlicensed use, such as WiFi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communications, as described, for example, with reference to Figure 2 and/or 3. The receiver module 1310 may be used to receive various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established via licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000154] In some examples, the transmitter module 1330 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio frequency spectrum and/or shared access radio frequency spectrum. The transmitter module 1330 may be used to transmit various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system. wireless communication 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established via the licensed radio frequency spectrum and/or radio frequency spectrum shared access.

[000155] In some examples, the cell reselection and/or access management module 1320 may be an example of one or more aspects of the cell reselection and/or access management module 1220 described with reference to FIG. 12 The cell reselection and/or access management module 1320 may include a cell type and/or frequency type determination module 1335 and/or a cell type and/or frequency type notification module 1340 Each of these components can be in communication with each other.

[000156] In some examples, the cell type and/or frequency type determination module 1335 may be used to determine whether a cell (which cell may include part or all of the apparatus 1305 and/or another cell) operates in the spectrum shared access radio frequency, as described, for example, with reference to block 725, 825, 925, 1025, and/or 1125, of figure 7, 8, 9, 10 and/or 11.

[000157] In some examples, the cell type and/or frequency type notification module 1340 may be used to prepare and transmit signaling information to a mobile device via the transmitter module 1330. The signaling information may be based on the least in part in a determination by the cell type and/or frequency type determination module 1335 that the cell operates in the shared access radio frequency spectrum. The signaling information may indicate that the cell is prohibited from serving as a PCell (or that the cell may operate as a SCell), as described, for example, with reference to signaling information 730, 740, 835, 955, 1060 and/or or 1070 of Figure 7, 8, 9, 10 and/or 11. Signaling information can be prepared, for example, in block 830, 945, 1045 and/or 1145 of Figure 8, 9, 10 and/or 11.

[000158] When a mobile device is in an RRC connected state with the apparatus 1304, the signaling information transmitted to the mobile device may include RRC signaling information. The RRC signaling information may include any of the signaling information transmitted by the PCell 710 and/or 810 described with reference to Figure 7 and/or 8.

[000159] When a mobile device is in an RRC idle state with respect to the apparatus 1305, the signaling information transmitted to the mobile device may include any of the signaling information transmitted by the NCell 920, 930, 1020, 1030, 1120 and/or 1130 described with reference to figure 9, 10 and/or 11.

[000160] Figure 14 shows a block diagram 1400 of an apparatus 1405 for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, the apparatus 1405 may be an example of one or more aspects of the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or one or more aspects of the apparatus 1205 and /or 1305 described with reference to figure 12 and/or 13 and can operate the PCell 510, 610, 710, 810, 910, 1010 and/or 1110 described with reference to figure 5, 6, 7, 8, 9, 10 and /or 11, and/or the NCell 520, 530, 640, 650, 920, 930, 1020, 1030, 1120 and/or 1130 described with reference to figure 5, 6, 9, 10 and/or 11, and/or the SCell 620 and/or 630 described with reference to Figure 6. The apparatus 1405 may also be a processor. Apparatus 1405 may include a receiver module 1410, a cell reselection and/or access management module 1420, and/or a transmitter module 1430. Each of these components may be in communication with each other.

[000161] The components of apparatus 1405 may, individually or collectively, be implemented using one or more ASICs adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., platform/structured ASICs, Field Programmable Gate Arrays (FPGAs), and other semi-custom ICs), which may be programmed in any mode known in the art. . The functions of each unit can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more application-specific or general processors.

[000162] In some examples, the receiver module 1410 may include an RF receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio frequency spectrum (e.g., a radio frequency spectrum to which devices do not compete for access because the radio frequency spectrum is licensed to specific users for specific uses) and/or a shared access radio frequency spectrum (for example, a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for use unlicensed spectrum, such as WiFi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communications, as described, for example, with reference to Figure 2 and/or 3. The receiver module 1410 may in some cases include separate receivers for the licensed radio frequency spectrum and the shared access radio frequency spectrum. The separate receivers may, in some examples, be in the form of a licensed spectrum LTE/LTE-A receiver module 1414 for communicating over the shared access radio frequency spectrum. The receiver module 1410, including the licensed spectrum LTE/LTE-A receiver module 1412 and/or the shared spectrum LTE/LTE-A receiver module 1414 may be used to receive various types of data and/or control signals (i.e. is, transmissions) over one or more communication links of a wireless communication system 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. The communication links may be established through licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000163] In some examples, the transmitter module 1430 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio frequency spectrum and/or shared access radio frequency spectrum. In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communication as described, for example, with reference to Figure 2 and/or 3. The transmitter module 1430 may in some cases include separate transmitters for the licensed radio frequency spectrum and the shared access radio frequency spectrum. The separate transmitters may, in some examples, be in the form of a licensed spectrum LTE/LTE-A transmitter module 1432 for communicating across the licensed radio frequency spectrum, and a shared spectrum LTE/LTE-A transmitter module 1434 for communicating across of the shared access radio frequency spectrum. The transmitter module 1430 including the licensed spectrum LTE/LTE-A transmitter module 1432 and/or the shared spectrum LTE/LTE-A transmitter module 1434 may be used to transmit various types of data and/or control signals (i.e. , transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2 , 3, 5 and/or 6. Communication links may be established through licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000164] In some examples, the cell reselection and/or access management module 1420 may be an example of one or more aspects of the cell reselection and/or access management module 1220 and/or 1320 described with 12 and/or 13. The cell reselection and/or access management module 1420 may include a cell type and/or frequency type determination module 1435 and/or a cell type notification module. cell and/or frequency type 1440. Each of these components can be in communication with each other.

[000165] In some examples, the cell type and/or frequency type determination module 1435 may be an example of the cell type and/or frequency type determination module 1335 described with reference to Figure 13 and may be used to determine whether a cell (which cell may include part or all of apparatus 1405 and/or another cell) operates in the shared access radio frequency spectrum as described with reference to block 725, 825, 925, 1025, and/or 1115 of figure 7, 8, 9, 10 and/or 11.

[000166] In some examples, the cell type and/or reference type notification module 1440 may be an example of the cell type and/or frequency type notification module 1340 described with reference to Figure 13 and may be used to prepare and transmit signaling information to a mobile device via transmitter module 1430. The signaling information may be based at least in part on a determination by the cell type determination module and/or frequency type 1435 that the cell operates in the shared access radio frequency spectrum. The signaling information may indicate that the cell is prohibited from serving as a PCell (or that the cell may operate as a SCell). The cell type and/or frequency type notification module 1440 may include a cell ready notification module 1445, a frequency/cell unavailable notification module 1450, a cell acquisition notification module 1455, a broadcast notification module 1460, and/or an access rejection notification module 1465.

[000167] The ready cell notification module 1445 can be used to transmit signaling information including a list of ready cells to a mobile device, as described, for example, with reference to the signaling information of Figure 7.

[000168] Frequency/cell unavailable notification module 1450 may be used to prepare and transmit signaling information indicating cells and/or frequencies that are unavailable for initial access or cell reselection, as described, for example, with reference to block 830 and signaling information 730 and/or 835 of Figure 7 and/or 8.

[000169] The cell acquisition notification module 1455 may be used to prepare and transmit signaling information indicating that at least one cell is prohibited from serving as a PCell (or that at least one cell may be operated as a Scell), as described, for example, with reference to block 945 and the first cell acquisition signaling information 955 of Figure 9.

[000170] The broadcast notification module 1460 can be used to prepare and transmit signaling information indicating that at least one cell is prohibited from serving as a PCell (or that at least one cell can be operated as a SCell), as described , for example, with reference to block 1045 and the first broadcast signaling information 1060 of Figure 10.

[000171] The access rejection notification module 1465 may be used to prepare and transmit signaling information indicating that at least one cell is prohibited from serving as a PCell (or that at least one cell may be operated as a SCell), as described, for example, with reference to block 1146 and access rejection signaling information 1170 of FIG. 11.

[000172] Figure 15 shows a block diagram 1500 of an apparatus 1515 for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, the apparatus 1515 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915, 1015 and/or 1115 described with reference to figure 1, 2, 3, 5, 6, 7, 8, 9, 10 and/or 11, and/or one or more aspects of the apparatus 1205 described with reference to figure 12. The apparatus 1515 may also be a processor . Apparatus 1515 may include a receiver module 1510, a cell reselection and/or access management module 1520, and/or a transmitter module 1530. Each of these components may be in communication with each other.

[000173] The components of apparatus 1515 may, individually or collectively, be implemented using one or more ASIC circuits adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., platform/structured ASICs, FPGAs, and other semi-custom ICs), which may be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more application-specific or general processors.

[000174] In some examples, the receiver module 1510 may include at least one RF receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio frequency spectrum (e.g., a radio frequency spectrum for which devices do not compete access because the radio frequency spectrum is licensed to specific users for specific uses) and/or a shared access radio frequency spectrum (for example, a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for unlicensed use, such as WiFi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communications, as described, for example, with reference to Figure 2 and/or 3. The receiver module 1510 may be used to receive various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established via licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000175] In some examples, the transmitter module 1530 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio frequency spectrum and/or shared access radio frequency spectrum. The transmitter module 1530 may be used to transmit various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system. wireless communication 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established via the licensed radio frequency spectrum and/or radio frequency spectrum shared access.

[000176] In some examples, the cell reselection and/or access management module 1520 may be an example of one or more aspects of the cell reselection and/or access management module 1220 described with reference to FIG. 12 The cell reselection and/or access management module 1520 may include a cell type and/or frequency type identification module 1535.

[000177] In some examples, the cell type and/or frequency type identification module 1535 may be used to identify whether a cell operating in a shared access radio frequency spectrum is prohibited from serving as a PCell based on at least in part on information stored in apparatus 1515, as described, for example, with reference to block 940, 1040 and/or 1140 of Figure 9, 10 and/or 11.

[000178] Figure 16 shows a block diagram 1600 of an apparatus 1615 for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, the apparatus 1615 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915, 1015 and/or 1115 described with reference to figure 1, 2, 3, 5, 6, 7, 8, 9, 10 and/or 11, and/or one or more aspects of the apparatus 1205 and/or 1515 described with reference to figure 12 and/or 15. The apparatus 1615 may also be a processor. Apparatus 1615 may include a receiver module 1610, a cell reselection and/or access management module 1620, and/or a transmitter module 1630. Each of these components may be in communication with each other.

[000179] The components of apparatus 1615 may, individually or collectively, be implemented using one or more ASIC circuits adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., platform/structured ASICs, FPGAs, and other semi-custom ICs), which may be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more application-specific or general processors.

[000180] In some examples, the receiver module 1610 may include at least one RF receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio frequency spectrum (e.g., a radio frequency spectrum for which devices do not compete access because the radio frequency spectrum is licensed to specific users for specific uses) and/or a shared access radio frequency spectrum (for example, a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for unlicensed use, such as WiFi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communications, as described, for example, with reference to Figure 2 and/or 3. The receiver module 1610 may be used to receive various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established via licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000181] In some examples, the transmitter module 1630 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio frequency spectrum and/or shared access radio frequency spectrum. The transmitter module 1630 may be used to transmit various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system. wireless communication 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established via the licensed radio frequency spectrum and/or radio frequency spectrum shared access.

[000182] In some examples, the cell reselection and/or access management module 1620 may be an example of one or more aspects of the cell reselection and/or access management module 1220 and/or 1520 described with 12 and/or 15. The cell reselection and/or access management module 1620 may include a cell type and/or frequency type receiving module 1635 and/or a cell type identification module. and/or frequency type 1640. Each of these components can be in communication with each other.

[000183] In some examples, the cell type and/or frequency type receiving module 1635 may be used to receive signaling information from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serve as a PCell, as described, for example, with reference to signaling information 740, 835, 955, 1060 and/or 1070 of Figure 7, 8, 9, 10 and/or 11. The signaling information can be received via of the 1610 receiver module.

[000184] In some examples, the cell type and/or frequency type identification module 1640 may be used to identify a cell as prohibited from serving as a PCell based at least in part on received signaling information, as described , for example, with reference to block 765, 850, 960, 1065 and/or 1175 of figure 7, 8, 9, 10 and/or 11.

[000185] Figure 17 shows a block diagram 1700 of an apparatus 1715 for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, the apparatus 1715 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915, 1015 and/or 1115 described with reference to figure 1, 2, 3, 5, 6, 7, 8, 9, 10 and/or 11, and/or one or more aspects of the apparatus 1205 and/or 1515 described with reference to figure 12 and/or 15. Apparatus 1715 may also be a processor. Apparatus 1715 may include a receiver module 1710, a cell reselection and/or access management module 1720, and/or a transmitter module 1730. Each of these components may be in communication with each other.

[000186] The components of apparatus 1715 may, individually or collectively, be implemented using one or more ASIC circuits adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., platform/structured ASICs, FPGAs, and other semi-custom ICs), which may be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more application-specific or general processors.

[000187] In some examples, the receiver module 1710 may include at least one RF receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio frequency spectrum (e.g., a radio frequency spectrum for which devices do not compete access because the radio frequency spectrum is licensed to specific users for specific uses) and/or a shared access radio frequency spectrum (for example, a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available for unlicensed use, such as WiFi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communications, as described, for example, with reference to Figure 2 and/or 3. The receiver module 1710 may in some cases include separate receivers for licensed radio frequency spectrum and shared access radio frequency spectrum. The separate receivers may, in some examples, be in the form of a licensed spectrum LTE/LTE-A receiver module 1712 for communicating across the licensed radio frequency spectrum, and a shared spectrum LTE/LTE-A receiver module 1714 for communicating across the licensed radio frequency spectrum. through shared access radio frequency spectrum. The receiver module 1710 including the licensed spectrum LTE/LTE-A receiver module 1712 and/or the shared spectrum LTE/LTE-A receiver module 1714 may be used to receive various types of data and/or control signals (i.e. , transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2 , 3, 5 and/or 6. Communication links may be established through licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000188] In some examples, the transmitter module 1730 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio frequency spectrum and/or shared access radio frequency spectrum. In some examples, both the licensed radio frequency spectrum and the shared access radio frequency spectrum may be used for LTE/LTE-A communications as described, for example, with reference to Figure 2 and/or 3. The transmitter module 1730 may in some cases include separate transmitters for the licensed radio frequency spectrum and the shared access radio frequency spectrum. The separate transmitters may, in some examples, be in the form of a licensed LTE/LTE-A transmitter module 1732 for communicating across the licensed radio frequency spectrum, and a shared spectrum LTE/LTE-A transmitter module 1734 for communicating across the spectrum. shared access radio frequency. The transmitter module 1630, including the licensed spectrum LTE/LTE-A transmitter module 1732 and/or the shared spectrum LTE/LTE-A transmitter module 1734 may be used to transmit various types of data and/or control signals (i.e. is, transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100, 200, 300, 500 and/or 600 described with reference to Figure 1, 2, 3, 5 and/or 6. Communication links may be established through licensed radio frequency spectrum and/or shared access radio frequency spectrum.

[000189] In some examples, the cell reselection and/or access management module 1720 may be an example of one or more aspects of the cell reselection and/or access management module 1220, 1520 and/or 1620 12, 15 and/or 16. The cell reselection and/or access management module 1720 may include a cell type and/or frequency type receiving module 1735 and/or an identification module. of cell type and/or frequency type 1740. Each of these components can be in communication with each other.

[000190] In some examples, the cell type and/or frequency type receiving module 1735 may be an example of the cell type and/or frequency type receiving module 1634 described with reference to Figure 16 and may be used to receive signaling information from a base station indicating that a cell operating a shared access radio frequency spectrum is prohibited from serving as a PCell. Signaling information may be received via the receiver module 1710. The cell type and/or frequency type receiving module 1735 may include a ready cell receiving module 1745, an unavailable cell/frequency receiving module 1750 , a cell acquisition receive module 1755, a broadcast receive module 1760, and/or an access reject receive module 1765.

[000191] The prepared cell receiving module 1745 can be used to receive signaling information including a list of prepared cells 740, as described, for example, with reference to the signaling information of Figure 7.

[000192] The unavailable cell/frequency receiving module 1750 may be used to receive signaling information indicating cells and/or frequencies that are unavailable for new cell selection or initial access, as described, for example, with reference to block 830 and signaling information 730 and/or 835 of Figure 7 and/or 8.

[000193] The cell acquisition receiving module 1755 can be used to receive signaling information indicating that at least one cell is prohibited from serving as a PCell (or that at least one cell can be operated as a SCell), as described , for example, with reference to block 945 and the first cell acquisition signaling information 955 of Figure 9.

[000194] The broadcast receiving module 1760 can be used to receive signaling information indicating that at least one cell is prohibited from serving as a PCell (or that at least one cell can be operated as a SCell), as described, by example, with reference to block 1045 and the first broadcast signaling information 1060 of Figure 10.

[000195] The access rejection receiving module 1765 can be used to receive signaling information indicating that at least one cell is prohibited from serving as a PCell (or that at least one cell can be operated as a SCell), as described , for example, with reference to block 1145 and access rejection signaling information 1170 of Figure 11.

[000196] In some examples, the cell type and/or frequency type identification module 1740 may be an example of the cell type and/or frequency type identification module 1640 described with reference to Figure 16 and may be used to identify a cell as prohibited from serving as a PCell based at least in part on received signaling information, as described, for example, with reference to block 765, 850, 960, 1065 and/or 1175 of Figure 7, 8 , 9, 10 and/or 11.

[000197] Figure 18 shows a block diagram 1800 of the base station 1805 (e.g., an eNB) for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, the base station 1805 may be an example of one or more aspects of the base station 105, 205 and/or 305 described with reference to Figure 1, 2 and/or 3, and/or one or more aspects of the PCell 510 , 610, 710, 810, 910, 1010 and/or 1110 described with reference to Figure 5, 6, 7, 8, 9, 10 and/or 11, and/or one or more aspects of NCell 520, 530, 640, 650, 920, 930, 1020, 1030, 1120 and/or 1130 described with reference to Figure 5, 6, 9, 10 and/or 11, and/or one or more aspects of SCell 620 and/or 630 described with reference to Figure 6, and/or one or more aspects of the apparatus 1205, 1305 and/or 1405 described with reference to Figure 12, 13 and/or 14. The base station 1805 may be configured to implement or facilitate at least some of the aspects and functions of the base station, cell, and/or apparatus described with reference to Figure 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13 and/or 14. The base station 1805 may include a base station processor module 1810, a base station memory module 1820, at least one base station transceiver module (represented by the base station transceiver module(s) 1850), at least one base station antenna base station (represented by base station antenna(s) 1855), a base station wireless communication management module 1860, and/or a base station cell reselection and/or access management module 1880. The base station 1805 may also include one or more of a base station communication module 1830 and/or a network communication module 1840. Each of these components may be in communication with each other, directly or indirectly, over one or more buses 1835 .

[000198] Base station memory module 1820 may include random access memory (RAM) and/or read-only memory (ROM). The base station memory module 1820 may store computer-executable, computer-readable software (SW) code 1825 containing instructions that are configured to, when executed, cause the base station processor module 1810 to perform various functions described herein related to a handover, cell reselection or an initial access procedure. Alternatively, software code 1825 may not be directly executable by base station processor module 1810, but be configured to cause base station 1805 (e.g., when compiled and executed) to perform various of the functions described herein.

[000199] The base station processor module 1810 may include an intelligent hardware device, e.g., a central processing unit (CPU), a microcontroller, an ASIC, etc. The base station processor module 1810 may process information received through the base station transceiver module(s) 1850, the base station communication module 1830, and/or the network communication module 1840. base station processor module 1810 may also process information to be sent to the transceiver module(s) 1850 for transmission via the antenna(s) 1855, to the base station communication module 1830, for transmission to one or more other base stations 1805-a and 1805-b, and/or to the network communication module 1840 for transmission to a core network 1845, which may be an example of one or more aspects of the core network 130 described with reference to FIG. 1. The base station processor module 1810 may handle, individually or with respect to the base station wireless communication management module 1860 and/or the base station cell reselection and/or management module access system 1880, various aspects of communicating over (or managing communication over) a first radio frequency spectrum (e.g., a licensed radio frequency spectrum usable for LTE/LTE-A communication) and/or a second radio frequency spectrum (e.g., a shared access radio frequency spectrum usable for LTE/LTE-A communication).

[000200] The base station transceiver module(s) 1850 may include a modem configured to modulate packets and provide the modulated packets to the base station antenna(s) 1855 for transmission , and demodulate packets received from the base station antenna(s) 1855. The base station transceiver module(s) 1850 may, in some examples, be implemented as a or more base station transmitter modules and one or more separate base station receiver modules. The base station transceiver module(s) 1850 may support communication in the first radio frequency spectrum and/or second radio frequency spectrum. The base station transceiver module(s) 1850 may be configured to communicate bidirectionally, via the antenna(s) 1855, with one or more mobile stations or apparatus, such as one or more of the mobile devices 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915, 1015 and/or 1115 described with reference to figure 1, 2, 3, 5, 6, 7, 8, 9, 10 and/or 11, and/or one or more of the apparatus 1205, 1515, 1615 and/or 1715 described with reference to figure 12, 15, 16, and/or 17, for example. The base station 1805 may, for example, include multiple base station antennas 1855 (e.g., an antenna array). The base station 1805 can communicate with the core network 1845 through the network communication module 1840. The base station 1805 can also communicate with other base stations or base stations, such as the base stations 1805-a and 1805-b using the base station 1805-b. 1830 base station communication.

[000201] The base station wireless communication management module 1860 may be configured to perform and/or control some or all of the features and/or functions described with reference to Figure 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13 and/or 14 relating to wireless communication via the first radio frequency spectrum and/or second radio frequency spectrum. For example, the base station wireless communication management module 1860 may be configured to support a supplemental downlink mode, a carrier aggregation mode, and/or an independent mode of operation using the first radio frequency spectrum and/or the second radio frequency spectrum. The base station wireless communication management module 1860 may include a base station licensed LTE/LTE-A module 1865 configured to handle LTE/LTE-A communication in the first radio frequency spectrum, and an LTE/LTE-A module of base station shared spectrum 1870 configured to handle LTE/LTE-A communication in the second radio frequency spectrum. The base station wireless communication management module 1860, or portions thereof, may include a processor, and/or some or all of the functions of the base station wireless communication management module 1860 may be performed by the processor module. of base station 1810 and/or with respect to base station processor module 1810.

[000202] The base station cell reselection and/or access management module 1880 may be configured to perform and/or control some or all of the features and/or functions described with reference to Figures 1, 2, 3, 5 , 6, 7, 8, 9, 10, 11, 12, 13 and/or 14 relating to new cell selection and/or initial cell access using the first radio frequency spectrum and/or the second radio frequency spectrum. In some examples, the base station cell reselection and/or access management module 1880 may be an example of one or more aspects of the cell reselection and/or access management module 1220, 1320 and/or 1420 described with reference to Figure 12, 13 and/or 14. The base station cell reselection and/or access management module 1880, or portions thereof, may include a processor and/or some or all of the functions of the module Base station cell reselection and/or access management 1880 may be performed by the base station processor module 1810 and/or with respect to the base station processor module 1810.

[000203] Figure 19 shows a block diagram 1900 of a mobile device 1915 (e.g., a UE) for use in wireless communication, in accordance with various aspects of the present disclosure. The mobile device 1915 may have various configurations and may be included in or be part of a personal computer (e.g., a laptop computer, netbook computer, tablet computer, etc.), a cellular telephone, a PDA, a digital video recorder ( DVR), an internet device, a game console, an ereader, etc. The mobile device 1915 may, in some examples, have an internal power source (not shown), such as a small battery to facilitate mobile operation. In some examples, the mobile device 1915 may be an example of one or more aspects of the mobile device 115, 215, 215-a, 215b, 315, 515, 615, 715, 815, 915, 1015 and/or 1115 described with reference. to Figure 1, 2, 3, 5, 6, 7, 8, 9, 10 and/or 11, and/or one or more aspects of the apparatus 1205, 1515, 1615 and/or 1715 described with reference to Figure 12, 15 , 16 and/or 17. The mobile device 1915 may be configured to implement at least some of the aspects and functions of the mobile device and/or apparatus described with reference to Figure 1, 2, 3, 5, 6, 7, 8, 9 , 10, 11, 12, 15, 16 and/or 17.

[000204] The mobile device 1915 may include a mobile device processor module 1910, a mobile device memory module 1920, at least one mobile device transceiver module (represented by the mobile device transceiver module(s) mobile device antenna(s) 1930), at least one mobile device antenna (represented by mobile device antenna(s) 1940), a mobile device wireless communication management module 1960, and/or a cell reselection module of mobile device and/or access management 1980. Each of these components may be in communication with each other, directly or indirectly, over one or more buses 1935.

[000205] The base station memory module 1920 may include RAM and/or ROM. The base station memory module 1920 may store computer-executable, computer-readable software code (SW) 1925 containing instructions that are configured to, when executed, cause the base station processor module 1910 to perform various functions described herein related to a handover, cell reselection or an initial access procedure. Alternatively, software code 1925 may not be directly executable by base station processor module 1910, but be configured to cause base station 1915 (e.g., when compiled and executed) to perform various of the functions described herein.

[000206] The mobile device processor module 1910 may include an intelligent hardware device, e.g., a CPU, a microcontroller, an ASIC, etc. The base station processor module 1910 may process information received through the base station transceiver module(s) 1930 and/or information to be sent to the device transceiver module(s). mobile device 1930 for transmission through the mobile device antenna(s) 1940. The mobile device processor module 1910 may handle, individually or with respect to the mobile device wireless communication management module 1960 and/or the new mobile device cell selection and/or access management 1980, various aspects of communicating over (or managing communication over) a first radio frequency spectrum (e.g., licensed radio frequency spectrum usable for LTE/LTE-A communication) and /or a second radio frequency spectrum (e.g., a shared access radio frequency spectrum usable for LTE/LTE-A communication).

[000207] The mobile device transceiver module(s) 1930 may include a modem configured to modulate packets and provide the modulated packets to the mobile device antenna(s) 1940 for transmission , and demodulate packets received from the mobile device antenna(s) 1940. The mobile device transceiver module(s) 1930 may, in some examples, be implemented as a or more mobile device transmitter modules and one or more separate mobile device receiver modules. The mobile device transceiver module(s) 1930 may support communication in the first radio frequency spectrum and/or second radio frequency spectrum. The mobile device transceiver module(s) 1930 may be configured to communicate bidirectionally, via the mobile device antenna(s) 1940, with one or more base stations 105 , 205, 305 and/or 1805 described with reference to figures 1, 2, 3 and/or 18, and/or one or more of PCell 510, 610, 710, 810, 910, 1010 and/or 1110 described with reference to figure 5, 6, 7, 8, 9, 10 and/or 11, and/or one or more of the NCell 520, 530, 640, 650, 920, 930, 1020, 1030, 1120 and/or 1130 described with reference to figure 5, 6, 9, 10 and/or 11, and/or one or more of the SCell 620 and/or 630 described with reference to figure 6, and/or one or more of the apparatus 1205, 1305 and/or 1405 described with reference to Figures 12, 13 and/or 14. Although mobile device 1915 may include a single mobile device antenna, there may be examples in which mobile device 1915 may include multiple mobile device antennas 1940.

[000208] The state module 1950 may be used, for example, to manage transitions of the mobile device 1915 between an RRC idle state and an RRC connected state, and may be in communication with other components of the mobile device 1915, directly or indirectly, over one or more buses 1935. The status module 1950, or portions thereof, may include a processor and/or some or all of the functions of the status module 1950 may be performed by the mobile device processor module 1910 and/or with with respect to the mobile device processor module 1910.

[000209] The mobile device wireless communication management module 1960 may be configured to perform and/or control some or all of the features and/or functions described with reference to Figure 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16 and/or 7 relating to wireless communication via the first radio frequency spectrum and/or second radio frequency spectrum. For example, the mobile device wireless communication management module 1960 may be configured to support a supplemental downlink mode, a carrier aggregation mode, and/or an independent mode of operation using the first radio frequency spectrum and/or the second radio frequency spectrum. The mobile device wireless communication management module 1960 may include a mobile device licensed LTE/LTE-A module 1965 configured to handle LTE/LTE-A communication in the first radio frequency spectrum, and an LTE/LTE-A module of mobile device shared spectrum 1970 configured to handle LTE/LTE-A communication in the second radio frequency spectrum. The mobile device wireless communication management module 1960, or portions thereof, may include a processor, and/or some or all of the functions of the mobile device wireless communication management module 1960 may be performed by the processor module. of mobile device 1910 and/or with respect to mobile device processor module 1910.

[000210] The mobile device cell reselection and/or access management module 1980 may be configured to perform and/or control some or all of the features and/or functions described with reference to Figures 1, 2, 3, 5 , 6, 7, 8, 9, 10, 11, 12, 15, 16 and/or 17 relating to new cell selection and/or initial cell access using the first radio frequency spectrum and/or the second radio frequency spectrum. In some examples, the mobile device cell reselection and/or access management module 1980 may be an example of one or more aspects of the cell reselection and/or access management module 1220, 1520, 1620 and/or 1720 described with reference to Figure 12, 15, 16 and/or 17. The base station cell reselection and/or access management module 1980, or portions thereof, may include a processor and/or some or all of the Functions of the mobile device cell reselection and/or access management module 1980 may be performed by the base station processor module 1910 and/or with respect to the mobile device processor module 1910.

[000211] Figure 20 is a flowchart illustrating an example of a method 2000 for wireless communication (e.g., by a base station or cell), in accordance with various aspects of the present disclosure. For clarity, method 2000 is described below with reference to aspects of one or more of the base station 105, 205, 305 and/or 1805 described with reference to Figure 1, 2, 3 and/or 18, and/or one or more aspects of the apparatus 1205, 1305, and/or 1405 described with reference to Figure 12, 13 and/or 14, which can operate the PCell 510, 610, 710, 810, 910, 1010, and/or 1110 described with reference to Figure 5, 6, 7, 8, 9, and/or 11, and/or the NCell 520, 530, 640, 650, 920, 930, 1020, 1120 and/or 1130, described with reference to Figure 5, 6, 9 , 10 and/or 11, and/or the SCell 620 and/or 630 described with reference to Figure 6. In some examples, a base station and/or apparatus operating a PCell, SCell and/or NCell may execute one or more sets of codes to control the functional elements of the base station, handset, PCell, SCell and/or NCell to perform the functions described below.

[000212] In block 2005, method 2000 may include determining that a cell operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available to unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). The operation(s) in block 2005 may be performed using the cell reselection and/or access management module 1220, 1320, 1420, and/or 1880 described with reference to FIG. 12 , 13, 14 and/or 18, and/or the cell type and/or frequency type determination module 1335 and/or 1435 described with reference to Figure 13 and/or 14.

[000213] In block 2010, method 2000 may include transmitting signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based at least in part on the determination that the cell operates in the spectrum shared access radio frequency. The operation(s) in block 2010 may be performed using the cell reselection and/or access management module 1220, 1320, 1420 and/or 1880 described with reference to FIG. 12, 13, 14 and/or 18, and/or the cell type and/or frequency type notification module 1340 and/or 1440 described with reference to Figure 13 and/or 14.

[000214] When the mobile device is in an RRC connected state, the signaling information may include any of the signaling information transmitted by the PCell 710 and/or 810 described with reference to Figure 7 and/or 8.

[000215] When the mobile device is in an RRC idle state, the signaling information transmitted to the mobile device may include any of the signaling information transmitted by the NCell 920, 930, 1020, 1030, 1120 and/or 1130 described with reference to figure 9, 10, and/or 11.

[000216] In this way, method 2000 can provide wireless communication. It should be noted that method 2000 is only one implementation and that the operations of method 2000 may be rearranged or otherwise modified so that other implementations are possible.

[000217] Figure 21 is a flowchart illustrating an example of a method 2100 for wireless communication (e.g., by a base station or cell), in accordance with various aspects of the present disclosure. For clarity, method 2100 is described below with reference to aspects of one or more of the base station 105, 205, 305 and/or 1805 described with reference to Figure 1, 2, 3 and/or 18, and/or one or more aspects of the apparatus 1205, 1305, and/or 1405 described with reference to Figure 12, 13 and/or 14, which can operate the PCell 510, 610, 710, 810, 910, 1010, and/or 1110 described with reference to Figure 5, 6, 7, 8, 9, and/or 11, and/or the NCell 520, 530, 640, 650, 920, 930, 1020, 1120 and/or 1130, described with reference to Figure 5, 6, 9 , 10 and/or 11, and/or the SCell 620 and/or 630 described with reference to Figure 6. In some examples, a base station and/or apparatus operating a PCell, SCell and/or NCell may execute one or more sets of codes to control the functional elements of the base station, handset, PCell, SCell and/or NCell to perform the functions described below.

[000218] In block 2105, method 2100 may include determining that a cell operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available to unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). The operation(s) in block 2005 may be performed using the cell reselection and/or access management module 1220, 1320, 1420, and/or 1880 described with reference to FIG. 12 , 13, 14 and/or 18, and/or the cell type and/or frequency type determination module 1335 and/or 1435 described with reference to Figure 13 and/or 14.

[000219] In block 2110, block 2115 and/or block 2125, method 2100 may include determining whether to transmit signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell. The operation(s) in block 2110, 2115 and/or 2125 may be performed using the cell reselection and/or access management module 1220, 1320, 1420 and/or 1880 described. with reference to Figure 12, 13, 14 and/or 18, and/or the cell type and/or frequency type notification module 1340 and/or 1440 described with reference to Figure 13 and/or 14.

[000220] More specifically, and in block 2110, method 2100 may include transmitting cell acquisition signaling information to the mobile device. The cell acquisition signaling information transmitted to the mobile device in block 2110 may include any of the cell acquisition signaling information transmitted by the NCell 920 and/or 930 described with reference to FIG. 9.

[000221] In block 2115, method 2100 may include broadcasting signaling information to the mobile device. The broadcast signaling information for the mobile device in block 2115 may include any of the broadcast signaling information by NCell 1020 and/or 1030 described with reference to FIG. 10.

[000222] In block 2120, method 2100 may include determining whether a request to access a cell has been received. When the request to access the cell has been received, the method may proceed to block 2125, where the method 2100 may include transmitting access rejection signaling information to the mobile device. The access rejection signaling information transmitted to the mobile device in block 2125 may include any of the access rejection signaling information broadcast by the NCell 1120 and/or 1130 described with reference to Figure 11.

[000223] In this way, method 2100 can provide wireless communication. It should be noted that method 2100 is only one implementation and that operations of method 2100 may be rearranged or otherwise modified so that other implementations are possible.

[000224] Figure 22 is a flowchart illustrating an example of a method 2200 for wireless communication (e.g., by a base station or cell), in accordance with various aspects of the present disclosure. For clarity, method 2200 is described below with reference to aspects of one or more of the base station 105, 205, 305 and/or 1805 described with reference to Figure 1, 2, 3 and/or 18, and/or one or more aspects of the apparatus 1205, 1305, and/or 1405 described with reference to Figure 12, 13 and/or 14, which can operate the PCell 510, 610, 710, 810, 910, 1010, and/or 1110 described with reference to Figure 5, 6, 7, 8, 9, and/or 11, and/or the NCell 520, 530, 640, 650, 920, 930, 1020, 1120 and/or 1130, described with reference to Figure 5, 6, 9 , 10 and/or 11, and/or the SCell 620 and/or 630 described with reference to Figure 6. In some examples, a base station and/or apparatus operating a PCell, SCell and/or NCell may execute one or more sets of codes to control the functional elements of the base station, handset, PCell, SCell and/or NCell to perform the functions described below.

[000225] In block 2205, method 2200 may include determining that a cell operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available to unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). The operation(s) in block 2205 may be performed using the cell reselection and/or access management module 1220, 1320, 1420, and/or 1880 described with reference to FIG. 12 , 13, 14 and/or 18, and/or the cell type and/or frequency type determination module 1335 and/or 1435 described with reference to Figure 13 and/or 14.

[000226] In block 2210, method 2200 may include determining whether one or more frequency bands of the shared access radio frequency spectrum are not suitable for selection of a primary serving cell. One or more frequency bands may include a frequency used by the cell operating the shared access radio frequency spectrum. The operation(s) in block 2210 may be performed using the cell reselection and/or access management module 1220, 1320, 1420 and/or 1880 described with reference to FIG. 12, 13, 14 and/or 18, and/or the cell type and/or frequency type notification module 1340 and/or 1440 described with reference to Figure 13 and/or 14.

[000227] In block 2215, method 2200 may include transmitting signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based at least in part on determining that the cell operates in the radio spectrum. shared access radio frequency. At least a portion of the signaling information may include one or more frequency band identifiers and/or channel identifiers that uniquely identify one or more frequency bands of the shared access radio frequency spectrum. The operation(s) in block 2215 may be performed using the cell reselection and/or access management module 1220, 1320, 1420 and/or 1880 described with reference to FIG. 12, 13, 14 and/or 18, and/or the cell type and/or frequency type notification module 1340 and/or 1440 described with reference to Figure 13 and/or 14.

[000228] In this way, method 2200 can provide wireless communication. It should be noted that method 2200 is only one implementation and that operations of method 2200 may be rearranged or otherwise modified so that other implementations are possible.

[000229] Figure 23 is a flowchart illustrating an example of a method 2300 for wireless communication (e.g., by a base station or cell), in accordance with various aspects of the present disclosure. For clarity, method 2300 is described below with reference to aspects of one or more of the base station 105, 205, 305 and/or 1805 described with reference to Figure 1, 2, 3 and/or 18, and/or one or more aspects of the apparatus 1205, 1305, and/or 1405 described with reference to Figure 12, 13 and/or 14, which can operate the PCell 510, 610, 710, 810, 910, 1010, and/or 1110 described with reference to Figure 5, 6, 7, 8, 9, and/or 11, and/or the NCell 520, 530, 640, 650, 920, 930, 1020, 1120 and/or 1130, described with reference to Figure 5, 6, 9 , 10 and/or 11, and/or the SCell 620 and/or 630 described with reference to Figure 6. In some examples, a base station and/or apparatus operating a PCell, SCell and/or NCell may execute one or more sets of codes to control the functional elements of the base station, handset, PCell, SCell and/or NCell to perform the functions described below.

[000230] In block 2305, method 2300 may include determining that a cell operates in a shared access radio frequency spectrum (e.g., a radio frequency spectrum to which devices may need to compete for access because the radio frequency spectrum is available to unlicensed use, such as Wi-Fi radio frequency spectrum, and/or radio frequency spectrum that a plurality of MNOs are authorized to access). The operation(s) in block 2305 may be performed using the cell reselection and/or access management module 1220, 1320, 1420, and/or 1880 described with reference to FIG. 12 , 13, 14 and/or 18, and/or the cell type and/or frequency type determination module 1335 and/or 1435 described with reference to Figure 13 and/or 14.

[000231] In block 2310, method 2300 may include determining whether one or more frequency bands of the shared access radio frequency spectrum are not suitable for selection of a primary serving cell. The frequency band may include a frequency used by the cell operating the shared access radio frequency spectrum. The operation(s) in block 2310 may be performed using the cell reselection and/or access management module 1220, 1320, 1420 and/or 1880 described with reference to FIG. 12, 13, 14 and/or 18, and/or the cell type and/or frequency type notification module 1340 and/or 1440 described with reference to Figure 13 and/or 14.

[000232] In block 2315, method 2300 may include transmitting signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based at least in part on determining that the cell operates in the radio spectrum. shared access radio frequency. At least a portion of the signaling information may include one or more frequency band identifiers and/or channel identifiers that uniquely identify the frequency band of the shared access radio frequency spectrum. The operation(s) in block 2315 may be performed using the cell reselection and/or access management module 1220, 1320, 1420 and/or 1880 described with reference to FIG. 12, 13, 14 and/or 18, and/or the cell type and/or frequency type notification module 1340 and/or 1440 described with reference to Figure 13 and/or 14.

[000233] In this way, method 2300 can provide wireless communication. It should be noted that method 2300 is only one implementation and that operations of method 2300 may be rearranged or otherwise modified so that other implementations are possible.

[000234] In some examples, one or more aspects of methods 2000, 2100, 2200 and/or 2300 may be combined.

[000235] Figure 24 is a flowchart illustrating an example of a method 2400 for wireless communication (e.g., by a mobile device) in accordance with various aspects of the present disclosure. For clarity, method 2400 is described below with reference to aspects of one or more of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915, 1015, 1115 and/or 1915 described with reference to figure 1, 2, 3, 5, 6, 7, 8, 9, 10, 11 and/or 19, and/or one or more aspects of apparatus 1205 and/or 1505 described with reference to figure 12 and/or 15. In some examples, a mobile device and/or appliance may execute one or more sets of codes to control functional elements of the mobile device and/or appliance to perform the functions described below.

[000236] In block 2405, method 2400 may include identifying by a mobile device and/or handset, a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell based at least in part on information stored on the mobile device and/or device. The operation(s) in block 2405 may be performed using the cell reselection and/or access management module 1220, 1520 and/or 1980 described with reference to Figure 12, 15 and/or 19 , and/or cell type and/or frequency type identification module 1535 described with reference to Figure 15.

[000237] In some examples, the information stored in the mobile device may include the information stored in the mobile device 915, 1015, and/or 1115 described with reference to Figure 9, 10 and/or 11.

[000238] In this way, method 2400 can provide wireless communication. It should be noted that method 2400 is only one implementation and that operations of method 2400 may be rearranged or otherwise modified so that other implementations are possible.

[000239] Figure 25 is a flowchart illustrating an example of a method 2500 for wireless communication (e.g., by a mobile device) in accordance with various aspects of the present disclosure. For clarity, method 2500 is described below with reference to aspects of one or more of the mobile device 115, 215, 215-a, 215-b, 315, 515, 615, 715, 815, 915, 1015, 1115 and/or 1915 described with reference to figure 1, 2, 3, 5, 6, 7, 8, 9, 10, 11 and/or 19, and/or one or more aspects of apparatus 1205, 1605 and/or 1705 described with reference to Figures 12, 16 and/or 17. In some examples, a mobile device and/or apparatus may execute one or more sets of codes to control functional elements of the mobile device and/or apparatus to perform the functions described below.

[000240] In block 2505, method 2500 may include receiving signaling information on a mobile device from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell. The operation(s) in block 2505 may be performed using the cell reselection and/or access management module 1220, 1520 and/or 1980 described with reference to Figure 12, 15 and/or 19 , and/or receiving module of cell type and/or frequency type 1635 and/or 1735 described with reference to Figure 16 and/or 17.

[000241] In some examples, signaling information received at the mobile device may include information received at the mobile device 715, 815, 915, 1015, and/or 1115 described with reference to Figure 7, 8, 9, 10 and/or 11.

[000242] In some examples, signaling information may be received via dedicated signaling resources and/or via RRC signaling.

[000243] In block 2510, method 2500 may include identifying the cell as prohibited from serving as a primary serving cell based at least in part on the received signaling information. The operation(s) in block 25105 may be performed using the cell reselection and/or access management module 1220, 1520 and/or 1980 described with reference to Figure 12, 15 and/or 19 , and/or cell type and/or frequency type identification module 1640 and/or 1740 described with reference to Figure 16 and/or 17.

[000244] In some examples of method 2500, at least a portion of the signaling information may include one or more frequency band identifiers and/or channel identifiers that uniquely identify one or more frequency bands of the shared access radio frequency spectrum. . One or more frequency bands may include a frequency used by the cell identified as prohibited from serving as a primary cell. In these examples, method 2500 may include determining that one or more frequency bands of the shared access radio frequency spectrum are not suitable for selection of a primary serving cell, as described, for example, with reference to FIG. 10.

[000245] In some examples of method 2500, at least a portion of the signaling information may include one of a plurality of frequency band identifiers and/or channel identifiers that identify a frequency band of the shared access radio frequency spectrum. The frequency range may include a frequency used by the cell identified as prohibited from serving as a primary cell. In these examples, method 2500 may include determining that the frequency band of the shared access radio frequency spectrum is not suitable for selection of a primary serving cell, as described, for example, with reference to Figure 9, 10 and/or 11. .

[000246] In this way, method 2500 can provide wireless communication. It should be noted that method 2500 is only one implementation and that operations of method 2500 may be rearranged or otherwise modified so that other implementations are possible.

[000247] In some examples, one or more aspects of methods 2400 and/or 2500 may be combined.

[000248] The detailed description set out above in relation to the attached drawings describes examples and does not represent the only examples that can be implemented or that are included within the scope of the claims. The terms “example” and “exemplary” when used in this description mean “to serve as an example, instance or illustration” and not “preferred” or “advantageous over other examples.” The detailed description includes specific details for the purpose of providing an understanding of the techniques described. These techniques, however, can be put into practice without these specific details. In some instances, well-known structures and apparatus are shown in block diagram form to avoid obscuring the concepts of the examples described.

[000249] 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 particles or fields, optical particles or fields or any combination of the same.

[000250] The various illustrative blocks and modules described in connection with the present disclosure can be implemented or executed with a general purpose processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, 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 state machine. A processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, at least one microprocessor in combination with a DSP core, or any other such configuration.

[000251] The functions described here can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored in or transmitted as instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described above may be implemented using software executed by a processor, hardware, firmware, wiring, or combinations of any of these. Features implementing functions may also be physically located in various positions, including being distributed so that such portions of functions are implemented in different physical locations. Also, as used herein, including in the claims, “or” as used in a list of items prefaced by “at least one of” indicates a disjunctive list such that, for example, a list of “at least one of A, B , or C” means A or B or C or AB or AC or BC or ABC (that is, A and B and C).

[000252] Computer-readable media includes both computer-readable media and communication media including any media that facilitates transfer of a computer program from one place to another. A storage medium can be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, 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 media that can be used to load or storing desired program code media 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. Also any connection is properly termed 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, DSL, or wireless technologies such as infrared, radio, and microwave are included in the media definition. Disk and disc, as used here, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc, and blu-ray disc where disks typically reproduce data magnetically, while discs reproduce data optically with lasers . Combinations of the above shall also be included in the scope of computer-readable media.

[000253] The foregoing description of the disclosure is provided to enable a person skilled in the art to use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Throughout this disclosure the term “example” or “exemplary” indicates an example or instance and does not imply or require any preference for the example mentioned. Accordingly, the disclosure should not be limited to the examples and designs described here, but the broadest scope compatible with the novel principles and features disclosed here should be agreed upon.

Claims (15)

1. Method for wireless communication characterized by comprising: determining, by a primary serving cell (710), that a neighboring cell operates in a shared access radio frequency spectrum; and transmitting, by the primary serving cell (710), signaling information (730) to a mobile device (715) that indicates that the neighboring cell is prohibited from serving as a primary serving cell based, at least in part, on a determination of that the neighboring cell operates in the shared access radio frequency spectrum. 2. The method of claim 1, wherein transmitting the signaling information comprises: transmitting the signaling information using dedicated signaling resources. 3. The method of claim 2, wherein the signaling information comprises radio resource control signaling information, RRC. 4. The method of claim 3, wherein the signaling information indicates one or more frequencies of the shared access radio frequency spectrum that the mobile device should not monitor when the mobile device is in a control idle state of radio resource, RRC. 5. The method of claim 1, wherein one or more frequencies of the shared access radio frequency spectrum are not designated as a cell reselection priority. 6. The method of claim 1, wherein the signaling information indicates that the mobile device is prohibited from accessing the neighboring cell as a primary serving cell for a period of time. 7. Method according to claim 1, characterized by further comprising: determining that one or more frequency bands of the shared access radio frequency spectrum are not suitable for selecting a primary serving cell, wherein the one or more bands include a frequency used by the neighboring cell; wherein at least a portion of the signaling information comprises one or more frequency band identifiers or channel identifiers that uniquely identify one or more frequency bands of the shared access radio frequency spectrum. 8. The method of claim 1, further comprising: determining that a frequency range of the shared access radio frequency spectrum is not suitable for selecting a primary serving cell, the frequency range including a frequency used by the neighboring cell; wherein at least a portion of the signaling information comprises one of a plurality of frequency band identifiers or channel identifiers that identify the frequency band of the shared access radio frequency spectrum. 9. The method of claim 1, further comprising: preventing a switch from the mobile device to the neighboring cell based at least in part on determining that the neighboring cell operates in the shared access radio frequency spectrum when the device mobile is in a radio resource control, RRC connected state. 10. The method of claim 1, wherein the signaling information indicates one or more frequencies of the shared access radio frequency spectrum that are unavailable for cell reselection consideration when the mobile device is in an idle state radio resource control, RRC. 11. The method of claim 1, further comprising: receiving a request from the mobile device to access the neighboring cell operating in the shared access radio frequency spectrum; and rejecting the request to access the neighboring cell operating in the shared access radio frequency spectrum, wherein transmitting the signaling information comprises transmitting a cause value to the mobile device that indicates that the neighboring cell is prohibited from serving as the serving cell primary. 12. Method for wireless communication comprising: receiving signaling information (730) on a mobile device (715) from a base station that indicates that a neighboring cell operating in a shared access radio frequency spectrum is prohibited to serve as a primary serving cell; and identifying the neighboring cell as prohibited from serving as the primary serving cell based, at least in part, on the signaling information received (730). 13. Base station for wireless communication, which operates a primary serving cell (710), the base station characterized by comprising: means for determining, by a primary serving cell (710), that a neighboring cell operates in a spectrum of shared access radio frequency; and means for transmitting, by the primary serving cell (710), signaling information (730) to a mobile device (715) that indicates that the neighboring cell is prohibited from serving as a primary serving cell based, at least in part, on the determining that the neighboring cell operates in the shared access radio frequency spectrum. 14. Mobile device for wireless communication characterized by comprising: means for receiving signaling information (730) on the mobile device (715) from a base station that indicates that a neighboring cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell; and means for identifying the neighboring cell as prohibited from serving as the primary serving cell based, at least in part, on the signaling information received (730). 15. Computer-readable memory characterized by the fact that it has instructions stored therein that, when executed, cause a computer to perform a method, as defined in any one of claims 1 to 12.