Patent Publication Number: US-2016249390-A1

Title: Mobile device paging and small cell connection establishment in heterogeneous networks

Description:
TECHNICAL FIELD 
     Embodiments described herein generally relate to heterogeneous networks and particularly to paging mobile devices and establishing a connection between a mobile device and a small cell base station in heterogeneous networks. 
     BACKGROUND 
     Modern wireless systems, such as, for example, mobile telecommunication and/or broadband systems may be deployed as heterogeneous networks using multi-radio access technologies to improve spectrum efficiency and data rates. In general, a heterogeneous network (HetNet) is a system of heterogeneous components that may utilize multiple communication technologies, standards, or specifications to communicate. 
     An example of a HetNet is a mixture of macro base stations (BSs) and small cell BSs providing access to a main network (e.g., mobile broadband network.) The BSs in the HetNet may operate on different frequencies and/or utilize different radio technologies to provide a uniform experience for a user accessing the main network with a mobile device. The macro BSs often provides a large coverage area (e.g., 200 meters to a few kilometers) while the small cell BSs provide smaller coverage areas (e.g., 10 to 200 meters.) The coverage area of a macro BS may be densely populated with multiple small cell BSs (e.g. in order to augment the macro BS coverage area.) 
     A mobile device connects to the main network through a macro BS. The small cell BSs offer relaying capabilities between the mobile device and the macro BS to provide targeted infill and added capacity to the macro BS&#39;s coverage area. Accordingly, during operation, the mobile device may use a small cell BS as a relay between the macro BS. In order to use the small cell BSs as relays, they must be discoverable by the mobile devices. To provide for discovery, each small cell BS transmits a beacon signal and each mobile device listens for beacon signals (or vice versa.) In this manner, the mobile devices may discover the small cell BSs in the HetNet. However, transmitting beacons and listening for beacons is power intensive. As will be appreciated, the small cell BSs and the mobile device may be continually transmitting beacons and/or listening for beacons. Thus, there is a need for improving the energy efficiency with which mobile devices may establish communication with small cell BSs in a HetNet. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates an example of a HetNet according to an embodiment. 
         FIG. 2  illustrates a paging and connection technique implemented in a HetNet according to an embodiment. 
         FIG. 3  illustrates an example macro BS according to an embodiment. 
         FIG. 4  illustrates an example small cell BS according to an embodiment. 
         FIG. 5  illustrates an example mobile device according to an embodiment. 
         FIG. 6  illustrates an example of a logic flow for a macro BS according to an embodiment. 
         FIG. 7  illustrates an example of a logic flow for a small cell BS according to an embodiment. 
         FIG. 8  illustrates an example of a logic flow for a mobile device according to an embodiment. 
         FIG. 9  illustrates an example of a logic flow for a mobile device according to an embodiment. 
         FIG. 10  illustrates an embodiment of a storage medium. 
         FIG. 11  illustrates a device according to an embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Examples are generally directed to apparatuses and processes for paging mobile devices in a heterogeneous network (HetNet) and establishing a connection between the mobile device and a small cell base station (BS) in the HetNet. These apparatuses and processes may be included with or implemented by components (e.g., macro BSs, small cell BSs, mobile devices, or the like) of a HetNet in accordance with various wireless network standards. 
     According to some examples, a HetNet and/or individual components of a HetNet that are configured to page a mobile device and transmit and receive beacon signals between a mobile device and a small cell BS based upon the paging may be provided. For example, a macro BS may transmit an enhanced paging message to a mobile device. A small cell BS may transmit a beacon signal; with the timing of transmitting the beacon signal based upon the transmission of the enhanced paging message. The mobile device may receive the beacon signal; with the timing for receiving the beacon signal based upon the transmission of the enhanced paging message and initiate connection with the small cell BS directly (e.g., may respond to the enhanced paging message by establishing a connection with the small cell BS.) Other examples are provided herein and embodiments are not limited in this context. 
       FIG. 1  is a block diagram illustrating an example HetNet  1000 . In some examples, as shown in  FIG. 1 , the HetNet  1000  includes a macro BS  100 , small cell BSs  200 - 1 ,  200 - 2  and mobile devices  300 - 1 ,  300 - 2 . It is important to note that the number of components in the HetNet  1000  (e.g., the macro BS  100 , the small cell BSs  200 - 1 ,  200 - 2 , and the mobile devices  300 - 1 ,  300 - 2 ) is shown at a quantity to facilitate understanding. It is to be appreciated, that the number of components can vary and may, in practice, be much greater than that shown. 
     In some examples, the macro BS  100 , the small cell BSs  200 - 1 ,  200 - 2 , and/or the mobile devices  300 - 1 ,  300 - 2  may be components in a wireless communication and/or broadband system, such as, for example, a multi-radio access technology (multi-RAT) system operating in compliance with one or more wireless communication standards. In order to communicate over a radio technology, the macro BS  100 , the small cell BSs  200 - 1  to  200 - 2 , and the mobile devices  300 - 1  to  300 - 2  each include one or more antennas. For example, the macro BS  100  is shown including the antenna  110 . The small cell BS  200 - 1  is shown having first antenna  210  and second antenna  212 . The small cell BS  200 - 2  is shown having first antenna  214  and second antenna  216 . The mobile device  300 - 1  is shown having first antenna  310  and second antenna  312 . The mobile device  300 - 2  is shown having first antenna  314  and second antenna  316 . It is noted that each of the referenced antennas may correspond to one or more antennas. Said differently, each of the referenced antennas may be an antenna array (e.g., for operating in a multiple input and/or multiple output configuration.) Furthermore, although not depicted in  FIG. 1 , one or more of the small cell BSs  200 - 1 ,  200 - 2  or one or more of the mobile devices  300 - 1 ,  300 - 2  may only have a single antenna. Embodiments are not limited in this context. 
     In general, the macro BS  100  may be any of a variety of types of devices configured to provide mobile access to a network (e.g. cellular network, broadband network, or the like.) More particularly, the macro BS  100  provides network access to the mobile devices  300 . In some examples, the macro BS  100  provides network access in accordance with any of a variety of different radio access technologies and/or standards. The macro BS  100  includes circuitry  120  to transmit an enhanced paging message  20  to one or more of the mobile devices  300 - 1 ,  300 - 2 . For example, this figure depicts the macro BS  100  transmitting the enhanced paging message  20  to the mobile device  300 - 1 . It is to be appreciated, that a variety of techniques for transmitting paging messages are known. In general, the enhanced paging message  20  may be transmitted in accordance with any of these known techniques. However, the enhanced paging message  20  may also include an indication that the paging message may be answered through one of the small cell BSs  200 - 1 ,  200 - 2 . Said differently, the mobile device  300 - 1  may respond to the enhanced paging message  20  by initiating contact with one of the small cell BSs  200 - 1 ,  200 - 2 . In addition, the enhanced paging message  20  may include timing information (explained in greater detail below) for purposes of timing the transmission of beacons transmitted by the small cell BSs  200 - 1 ,  200 - 2 . 
     With some examples, the enhanced paging message  20  may include (a) an indication that the macro BS  100  accepts a longer response time to accommodate a response through one of the small cell BSs  200 - 1 ,  200 - 2 ; (b) an indication that the small cell BSs  200 - 1 ,  200 - 2  are to broadcast a beacon (e.g., the beacons  30 - 1 ,  30 - 2 ) and support establishing a connection with the mobile device  300 - 1 ; (c) an indication of a frequency band in which signals are to be sent by the mobile device  300 - 1 ; (d) an indication of a frequency band in which signals from the mobile device  300 - 1  are to be detected; (e) an indication of a frequency band in which the beacon (e.g., the beacons  30 - 1 ,  30 - 2 ) is to be transmitted; or (f) an indication of a frequency band in which the beacon (e.g., the beacons  30 - 1 ,  30 - 2 ) is to be detected. 
     The macro BS  100  may also include the circuitry  120  to transmit configuration information  60  to the small cell BSs  200 - 1 ,  200 - 2  to cause the small cell BSs  200 - 1 ,  200 - 2  to transmit a beacon (e.g., the beacons  30 - 1  or  30 - 2  described in greater detail below.) In some examples, the configuration information  60  may be transmitted wirelessly (e.g., as depicted.) In some examples, the configuration information  60  may be transmitted over a hardwired link (e.g., a non-wireless connection.) 
     Additionally, the macro BS  100  may also include the circuitry  120  to establish a backhaul connection with one or more of the small cell BSs  200 . It is to be appreciated, that techniques for establishing backhaul connections are known. Various embodiments may implement any of these backhaul connection technologies. For example, this figure depicts the backhaul connections  10 - 1  established with the small cell BS  200 - 1  and the backhaul connection  10 - 2  established with the small cell BS  200 - 2 . 
     With some examples, the macro BS  100  may also include the circuitry  120  to receive a connection established message from one of the small cell BSs indicating that the paged mobile device connected to the small cell BS or initiated a connection establishment to the small cell BS. In response, the macro BS  100  may stop paging the mobile device. 
     The small cell BSs  200 - 1 ,  200 - 2  may be any of a variety of types of devices configured to extend the coverage area of the macro BS  100 , increase the infill capacity of the macro BS  100 , and/or provide targeted access (e.g., using mmWave technologies, or the like) within the coverage area of the macro BS  100  in accordance with any of a variety of different radio access technologies and/or standards. The small cell BSs  200 - 1 ,  200 - 2  may sometimes be referred to as micro cells, pico cells, fempto cells, or the like. Each of the small cell BSs  200 - 1 ,  200 - 2  include circuitry  220 - 1 ,  220 - 2 . For example, the small cell BSs  200 - 1  and/or  200 - 2  may include circuitry (e.g.,  220 - 1  or  220 - 2 ) to receive an enhanced paging message intended for a mobile device in the HetNet (e.g., the mobile devices  300 - 1 ,  300 - 2 ) and transmit a beacon (e.g., the beacon  30 - 1 ) with the timing for transmitting the beacon based upon the enhanced paging message. In some examples, the small cell BSs  200 - 1 ,  200 - 2  may include the circuitry  220 - 1 ,  220 - 2  to receive the configuration information  60  from the macro BS  100  and transmit a beacon (e.g.,  30 - 1 ,  30 - 2 , or the like) based on the configuration information. 
     With some examples, the small cell BSs  200 - 1 ,  200 - 2  may transmit a beacon a specified amount of time after an enhanced paging message is transmitted by the macro BS  100  or received by the small cell BSs  200 - 1 ,  200 - 2 . With some examples, the small cell BSs  200 - 1 ,  200 - 2  may transmit a beacon once, e.g., a selected amount of time after an enhanced paging message is transmitted or as indicated in the configuration information  60 . In some examples, the small cell BSs  200 - 1 ,  200 - 2  may transmit a beacon multiple times (e.g., at preselected intervals, the timing of which is based on the enhanced paging message.) 
     Additionally, the small cell BSs  200 - 1 ,  200 - 2  may include the circuitry  220 - 1 ,  220 - 2  to receive a connection request from a mobile devices (e.g., the connection requests  40 - 1 ,  40 - 2 ); establish a backhaul connection with the macro BS  100  (e.g., the backhaul connections  10 - 1 ,  10 - 2 ); and establish a relay connection (e.g., the relay connections  50 - 1 ,  50 - 2 ) with the mobile devices  300 - 1 ,  300 - 2  to enable the mobile devices  300 - 1 ,  300 - 2  to communicate with the macro BS  100  through the small cell BSs  200 - 1 ,  200 - 2 . It is to be appreciated, that a variety of techniques are known for receiving connection requests, establishing backhaul connections, and establishing relay connections. Embodiments described herein may implement any of a variety of these techniques. Examples are not limited in this context. 
     In some examples, the small cell BSs  200 - 1 ,  200 - 2  may include the circuitry  220 - 1 ,  220 - 2  to transmit a connection established message to the macro BS  100  to cause the macro BS  100  to stop paging the mobile device. For example, this figure depicts the small cell BS  200 - 1  transmitting a connection established message  70  to the macro BS  100 . 
     The mobile devices  300 - 1 ,  300 - 2  may be any of a variety of devices for accessing services available on the HetNet  1000 . For example, the mobile devices  300 - 1 ,  300 - 2  may be a cellular telephone, a smart phone, a tablet computer, a laptop computer, a mobile access point, and/or a mobile hotspot. Additionally, the mobile devices  300 - 1 ,  300 - 2  may also include devices that might not be considered “mobile,” but which are none the less configured to access the HetNet  1000  (e.g., access the network through the macro BS  100 .) For example, the mobile devices  300 - 1 ,  300 - 2  may include desktop computers, servers, access points, nodes in the network, or the like. Examples are not limited in the context. Additionally, it is noted, that the mobile device  300 - 1  and the mobile device  300 - 2  may be different types of devices (e.g., one may be a smart phone while the other is a tablet computer, or any other possible combination.) Also, it is worth noting that those familiar with HetNets may also refer to the mobile devices  300 - 1 ,  300 - 2  as user devices (UEs.) Examples are not limited in the context. 
     The mobile devices  300 - 1 ,  300 - 2  include circuitry  320 - 1 ,  320 - 2  to receive an enhanced paging message (e.g., the enhanced paging message  20 ), receive a beacon (e.g., the beacons  30 - 1 ,  30 - 2 ,) and establish a relay connection with a small cell BS (e.g., the relay connections  50 - 1 ,  50 - 2 ). With some examples, the mobile devices  300 - 1 ,  300 - 2  may receive a beacon (e.g., the beacons  30 - 1 ,  30 - 2 ) with the timing for receiving the beacon based on the enhanced paging message  20 . Said differently, the mobile devices  300 - 1 ,  300 - 2  may include the circuitry  320 - 1 ,  320 - 2  to listen for the transmission of a beacon at a specified time interval (or intervals) based upon timing information specified in the enhanced paging message  20  and/or based upon a time in which the enhanced paging message  20  was transmitted. 
     With some examples, the mobile devices  300 - 1 ,  300 - 2  may receive a beacon based on an enhanced paging message intended for another mobile device in the HetNet  1000 . As will be appreciated, in some examples, a mobile device may be idle (also referred to as camped) on a macro BS. For communication initiated from the mobile device (as opposed to being paged by the macro BS as described above) the mobile device would need to initiate contact with the macro BS and then a small cell BS. However, some examples provide that a mobile device may receive a paging message intended for another mobile device, determine the timing information for receiving a beacon from a small cell BS, and initiate contact with a small cell BS to establish a communication pathway with the macro BS through the small cell BS. For example, the mobile device  300 - 2  may receive the enhanced paging message  20  and based upon timing information for transmitting a beacon signal, receive the beacon  30 - 2  transmitted from the small cell BS  200 - 2 . After which, the relay connection  50 - 2  may be established between the mobile device  300 - 2  and the small cell BS  200 - 2  to established as described above. 
     As described above, the enhanced paging message  20  includes an indication that the paging may be answered by initiating contact with a small cell BS. As such, responsive to receiving the enhanced paging message  20 , the mobile device  300 - 1  may initiate contact with one of the small cell BSs (e.g., by transmitting a connection request to the small cell BS.) 
       FIG. 2  is a paging and connection technique  1100  that may be implemented by logic and/or features of components in a HetNet. For example, logic and/or features located at or within a macro BS (e.g., the macro BS  100 ), a small cell BS (e.g., the small cell BSs  200 - 1 ,  200 - 2 ), and a mobile device (e.g., the mobile devices  300 - 1 ,  300 - 2 ) may implement the technique  1100 .  FIG. 2  (and other figures described herein) uses the variable “a” as a designator. As used herein, the variable “a” is intended to be a variable representing any positive integer. Accordingly, as an example, the small cell BS  200 - a  may correspond to either of the small cell BSs  200 - 1 ,  200 - 2 . 
     The technique  1100  is shown with time interval tO to tl. It is noted that this time scale is shown for illustrative purpose only and is not intended to indicate an actual amount of time between events depicted in the technique  1100  or an actual quantity of time represented. The time scale is shown for purposes of illustration only and any amount of time between events and the quantity of time may be implementation dependent. 
     The technique  1100  may include transmitting an enhanced paging message from the macro BS  100  to the mobile device  300 - a . For example, the enhanced paging message  20  may be transmitted from the macro BS  100  to the mobile device  300 - 1 . As noted above, any of the entities in the HetNet  1000  may receive the enhanced paging message. For example, any combination of the small cell BSs  200 - 1 ,  200 - 2  and/or the mobile device  300 - 1 ,  300 - 2  may receive the enhanced paging message  20 . For example, the paging technique  1100  shows bot the mobile device  300 - a  and the small cell BS  200 - a  receiving the enhanced paging message  20 . 
     In some examples, the macro BS  100  may additionally transmit configuration information to one or more small cell BSs  200 - 1 ,  200 - 1  in the Het Net  1000 . For example,  FIG. 1  depicts the macro BS  100  transmitting configuration information  60  to the small cell BS  200 - 2  (e.g., in order to cause the small cell BS  200 - 2  to transmit the beacon  30 - 2 .) 
     The small cell BS  200 - a  may then transmit a beacon  30 - a  with the timing for transmitting the beacon based upon either or both of the enhanced paging message  20  or the configuration information  60 . Similarly, a mobile device (e.g., the mobile devices  300 - 1 ,  300 - 2 ) may receive a beacon (e.g., the beacon  30 - 1 ,  30 - 2 ) with the timing for receiving the beacon based upon the enhanced paging message  20 . 
     The mobile device  300 - a  may initiate a connection with a small cell BS  200 - a  based upon receipt of the beacon  30 - a . More particularly, the mobile device  300 - a  may respond to the enhanced paging message  20  by initiating contact with the small cell BS  200 - a , which may include transmitting the connection request  40 - a  to the small cell BS  200 - a . Said differently, the receipt of the enhanced paging message  20  may cause the mobile device  300 - a  to listen for the beacon  30 - a  in order to establish a connection with the small cell BS  20 - a . For example, in  FIG. 1 , the mobile devices  300 - 1  and  300 - 2  are shown transmitting the connection requests  40 - 1  and  40 - 2  to the small cell BSs  200 - 1  and  200 - 2 , respectively. In some examples, the small cell BS  200 - a  may transmit the connection established message  70  to cause the macro BS  100  to stop paging the mobile device  300 - a.    
     The small cell BS  200 - a  and the mobile device  300 - a  may then establish a relay connection  50 - a . Additionally, the small cell BS  200 - a  may establish the backhaul connection  10 - a  with the macro BS  100 . In general, the relay connection  50 - a  connects the mobile device  300 - a  to the macro BS  100  through the small cell BS  200 - a . The backhaul connection  10 - a  provides continued exchange of signals with the small cell BS related to the relay connection  50 - a.    
     Accordingly, a technique for paging mobile devices and establishing connections between mobile devices and small cell BSs is described. In particularly, the technique provides for efficiently (e.g., lower power, reduced bandwidth congestion, or the like) paging mobile devices and establishing connections between mobile devices and small cell BSs. 
       FIGS. 3, 4, and 5  are block diagrams of a macro BS, a small cell BS, and a mobile device, respectively. Although a limited number of elements in a certain topology or configuration, are depicted in these figures, it will be appreciated that more or less elements in alternate configurations may be implemented as desired. The macro BS, the small cell BS, and the mobile device may be implemented as components in a HetNet capable of operating in compliance with one or more radio access technologies and/or standards such as those referenced herein. It is noted, that although the figures are discussed with reference to the HetNet  1000 , examples are not limited in this context. In general, each of the figures shows a computer and/or firmware implemented apparatus having circuitry arranged to execute one or more components. The circuitry can be any of various commercially available processors, including without limitation an AMD® Athlon®, Duron® and Opteron® processors; ARM® application, embedded and secure processors; IBM® and Motorola® DragonBall® and PowerPC® processors; IBM and Sony® Cell processors; Qualcomm® Snapdragon®; Intel® Celeron®, Core (2) Duo®, Core i3, Core i5, Core i7, Itanium®, Pentium®, Xeon®, Atom® and XScale® processors; and similar processors. Dual microprocessors, multi-core processors, and other multi-processor architectures may also be employed as the circuitry. According to some examples circuitry may also be an application specific integrated circuit (ASIC) and the components may be implemented as hardware elements of the ASIC. 
     Turning more specifically to  FIG. 3 , the macro BS  100  is depicted including a computer and/or firmware implemented apparatus having circuitry  120  arranged to execute one or more components  122 - a.    
     According to some examples, the macro BS  100  may include a macro base station pager  122 - 1  for execution by the circuitry  120  to transmit an enhanced paging message, the enhanced paging message including an indication that the paging message may be answered through a small cell BS. For example, the macro BS pager  122 - 1  may transmit the paging message  20  to the mobile device  300 - 1 . 
     In some examples, the macro BS  100  may include a small cell BS configurator  122 - 2  for execution by the circuitry  120  to transmit configuration information to the small BS station, the configuration information to cause the small cell BS to transmit a beacon, a mobile device to establish a relay connection with the small cell BS to connect the mobile device to the macro BS through the small cell BS based at least in part upon the beacon. For example, the small cell BS configurator  122 - 2  may transmit configuration information  60  to the small cell BS  200 - 2 . 
     With some examples, the macro BS  100  may include a macro BS backhauler  122 - 3  for execution by the circuitry  120  to establish a backhaul connection with the small cell BS to provide continued exchange of signals with the small cell BS related to the relay connection. For example, the macro BS backhauler  122 - 3  may establish the backhaul connection  10 - a  with the small cell BS  200 - a . With some examples, the macro BS backhauler  122 - 3  may establish context information between the small cell BS  200 - a  and the macro BS  100 , the context information including (i) indications of setup bearers, (ii) indications of mobile stations served by the small cell base station, (iii) indications of a mobile stations served by the small cell base station, (iv) indications of resources of the time, frequency, or power domain to be used by the small cell base station, or (v) indications of minimum or average quality of service provided with the setup bearers. 
     In some examples, the macro BS  100  may include a connection identifier  122 - 4  for execution by the circuitry  120  to receive an indication (e.g., the connection established message  70 ) from the small cell BS  200 - a  that the mobile device  300 - a  has established a connection with the small cell BS  200 - a  or has initiated establishment of such connection. In response, to receiving the indication, the macro BS pager  122 - 1  may cease transmitting the enhanced paging message  20 . With some examples, the connection established message  70  may include an identification corresponding to the mobile device  300 - a.    
     Turning more specifically to  FIG. 4 , the small cell BS  200 - a  is depicted including a computer and/or firmware implemented apparatus having circuitry  220 - a  arranged to execute one or more components  222 - a.    
     According to some examples, the small cell BS  200 - a  includes a beacon transmission scheduler  222 - 1  for execution by the circuitry  220 - a  to receive scheduling information from a macro BS, the scheduling information including indications of timing for transmitting a beacon signal. For example, the beacon transmission scheduler  222 - 1  may receive indications of scheduling information from either or both an enhanced paging message (e.g., the enhanced paging message  20 ) or configuration information (e.g., the configuration information  60 .) 
     With some examples, the small cell BS  200 - a  includes a beacon transmitter  222 - 2  for execution by the circuitry  220 - a  to transmit the beacon signal based at least in part on the received scheduling information. For example, the beacon transmitter  222 - 2  may transmit the beacon  30 - a  with the timing for transmitting the beacon  30 - a  based upon the enhanced paging message  20  or the configuration information  60 . With some examples, the beacon transmitter  222 - 2  may transmit the beacon signal on a selected frequency. The selected frequency, may, in some examples, be specified in the enhanced paging message. 
     In some examples, the small cell BS  200 - a  includes a mobile device connector  222 - 3  for execution by the circuitry  220 - a  to receive a request from the mobile device to establish a connection and to establish the connection with the mobile device. For example, the mobile device connector  222 - 3  may receive the connection request  40 - a  from the mobile device  300 - a  and establish a connection with the mobile device  300 - a  based upon the connection request  40 - a.    
     With some examples, the small cell BS  200 - a  includes a small cell backhauler  222 - 4  for execution by the circuitry  220 - a  to establish a backhaul connection with the macro BS to provide continued exchange of signal with the macro BS related to the connection with the mobile device. For example, the small cell backhauler  222 - 4  may establish the backhaul connection  10 - a  with the macro BS  100 . 
     In some examples, the small cell BS  200 - a  includes a relay connector  222 - 5  for execution by the circuitry  220 - a  to establish a relay connection with the mobile device based at least in part on the received connection request, the relay connection to connect the mobile device to the macro BS through the small cell BS. For example, the relay connector  222 - 5  may establish the relay connection  50 -a with the mobile device  300 - a  based at least in part on the connection request  40 - a . As such, the relay connection provides a connection (e.g., over the relay connection  50 - a  and the backhaul connection  10 - a ) between the mobile device  300 - a  and the macro BS  100 . 
     Turning more specifically to  FIG. 5 , the mobile device  300 - a  is depicted including a computer and/or firmware implemented apparatus having circuitry  320 - a  arranged to execute one or more components  322 - a.    
     According to some examples, the mobile device  300 - a  includes an enhanced paging message receiver  322 - 1  executable by the circuitry  320 - a  to receive an enhanced paging message, the enhanced paging message including an indication that the enhanced paging message may be answered through a small cell base station. For example, the enhanced paging message receiver  322 - 1  may receive the enhanced paging message  20 . 
     With some examples, the mobile device  300 - a  includes a beacon receiver  322 - 2  executable by the circuitry  320 - a  to configure the mobile device  300 - a  to receive a beacon signal. For example, the beacon receiver  322 - 2  may configure the mobile device  300 - a  to listen for and/or receive the beacon  30 - a , the timing for listening for and/or receiving the beacon  30 - a  may be based in part on the enhanced paging message  20 . Said differently, the beacon receiver  322 - 2  may configure the mobile device  300 - a  to receive the beacon signal based at least in part on the timing of the enhanced paging message  20 . In some examples, the enhanced paging message  20  includes an indication of the timing in which the small cell BS  200 - a  will transmit a beacon  30 - a , the beacon receiver  322 - 2  to configured the mobile device  300 - a  to receive the beacon  30 - a  based at least in part on the indication of the timing in which the small cell BS  200 - a  will transmit the beacon  30 - a.    
     In some examples, the mobile device  300 - a  includes a small cell BS connector  322 - 3  executable by the circuitry  320 - a  to establish a connection with the small cell BS responsive to the reception of the enhanced paging message. For example, the small cell BS connection  322 - 3  may, based upon receiving the enhanced paging message, transmit the connection request  40 - a  to the small cell BS  200 - a  and establish the relay connection  50 - a  with the small cell BS  200 - a . In some examples, the connection request  40 - a  is transmitted on a random access channel. 
       FIGS. 6, 7, 8, and 9  illustrate examples of logic flows  400 ,  500 ,  600 , and  700 , respectively. The logic flows may be representative of some or all of the operations executed by one or more logic, features, or devices described herein. In general, the logic flow  400  may be representative of some or all of the operations executed by logic and/or features of the macro BS  100 . In general, the logic flow  500  may be representative of some or all of the operations executed by logic and/or features of the small cell BS  200 - a . In general, the logic flows  600  and/or  700  may be representative of some or all of the operations executed by logic and/or features of the mobile device  300 - a.    
     Turning more specifically to  FIG. 6 , the macro BS pager  122 - 1 , the small cell BS configurator  122 - 2 , and/or the macro BS backhauler  122 - 3  may implement the logic flow  400 . 
     In the logic flow  400 , at block  402 , a macro BS in a HetNet may transmit an enhanced paging message to a mobile device, the enhanced paging message including an indication that the paging message may be answered through a small cell base station. For example, the macro BS  100  may transmit the enhanced paging message  20  to the mobile device  300 - a . More specifically, the macro BS pager  122 - 1  may transmit the enhanced paging message  20 . 
     At block  404 , the macro BS may transmit configuration information to the small cell BS, the configuration information to cause the small cell BS to transmit a beacon, a mobile device to establish a relay connection with the small cell base station to connect the mobile device to the macro BS through the small cell BS based at least in part upon the beacon. For example, the macro BS  100  may transmit configuration information  60  to the small cell BS  200 - a . More specifically, the small cell BS configurator  122 - 2  may transmit configuration information  60  to the small cell BS  200 - a . In some examples, the configuration information may be transmitted in the enhanced paging message  20 . 
     At block  406 , the macro BS may establish a backhaul connection with the small cell BS to provide continued exchange of signals with the small cell BS related to the relay connection. For example, the macro BS  100  may establish the backhaul connection  10 - a  with the small cell BS  200 - a  to provide continued exchange of signals (or indications of signals) related to the relay connection  50 - a.    
     Turning more specifically to  FIG. 7 , the beacon transmission scheduler  222 - 1 , the beacon transmitter  222 - 2 , the mobile device connector  222 - 3 , the small cell BS backhauler  222 - 4 , and/or the relay connector  222 - 5  may implement the logic flow  500 . 
     In the logic flow  500 , at block  502 , a small cell BS in a HetNet may receive scheduling information from a macro BS, the scheduling information including indications of a timing for transmitting of a beacon. For example, the small cell BS  200 - a  may receive scheduling information (e.g., based on the enhanced paging message  20 , based on the configuration information  60 , or the like) including indications of a timing for transmitting a beacon. More specifically, the beacon transmission scheduler  222 - 1  may receive timing information from either or both the enhanced paging message  20  or the configuration information  60 . 
     At block  504 , the small cell BS may transmit the beacon based at least in part on the received scheduling information. For example, small cell BS  200 - a  may transmit the beacon  30 - a . More specifically, the beacon transmitter  222 - 2  may transmit the beacon  30 - a.    
     At block  506 , the small cell BS may receive a request from the mobile device to establish a connection. For example, small cell BS  200 - a  may receive the connection request  40 - a  from the mobile device  300 - a . More specifically, the mobile device connector  222 - 3  may receive the connection request  40 - a.    
     At block  508 , the small cell BS may establish the connection with the mobile device. For example, the small cell BS  200 - a  may establish a connection with the mobile device  300 - a.    
     At block  510 , the small cell BS may establish a backhaul connection with the macro BS to provide continued exchange of signal with the macro BS related to the connection with the mobile device. For example, the small cell BS may establish the backhaul connection  10 - a  with the macro BS  100 . More specifically, the small cell BS backhauler  222 - 4  may establish the backhaul connection  10 - a.    
     At block  512 , the small cell BS may establish a relay connection with the mobile device based at least in part on the received connection request, the relay connection to connect the mobile device to the macro BS through the small cell base station. For example, the small cell BS  200 - a  may establish the relay connection  50 - a  with the mobile device  300 - a . More specifically, the relay connector  222 - 5  may establish the relay connection  50 - a.    
     Turning more specifically to  FIG. 8 , the enhanced paging message receiver  322 - 1 , the beacon receiver  322 - 2 , and/or the small cell BS connector  322 - 3  may implement the logic flow  600 . 
     In the logic flow  600 , at block  602 , a mobile device in a HetNet may receive an enhanced paging message, the enhanced paging message including an indication that the enhanced paging message may be answered through a small cell BS. For example, the mobile device  300 - a  may receive the enhanced paging message  20 . More specifically, the enhanced paging message receiver  322 - 1  may receive the enhanced paging message  20 . 
     At block  604 , the mobile device may be configured to receive a beacon. For example, the mobile device  300 - a  may be configured to receive a beacon with the timing for receiving the beacon based on the enhanced paging message  20 . More specifically, the beacon receiver  322 - 2  may configure the mobile device  300 - a  to receive the beacon  30 - a.    
     At block  606 , the mobile device may, responsive to receiving the enhanced paging message, establish a connection with the small cell BS. For example, the mobile device  300 - a  may transmit a connection request to the small cell BS and establish a relay connection with the small cell BS. More specifically, the small cell BS connector  322 - 3  may transmit the connection request  40 - a  to the small cell BS  200 - a  and establish the relay connection  50 - a  with the small cell BS  200 - a.    
     Turning more specifically to  FIG. 8 , the enhanced paging message receiver  322 - 1 , the beacon receiver  322 - 2 , and/or the small cell BS connector  322 - 3  may implement the logic flow  700 . 
     In the logic flow  700 , at block  702 , a mobile device in a HetNet may receive an enhanced paging message. For example, the mobile device  300 - a  may receive the enhanced paging message  20 . More specifically, the enhanced paging message receiver  322 - 1  may receive the enhanced paging message  20 . 
     At block  704  it is detected whether the received enhanced paging message includes an indication that the enhanced paging message may be answered through a small cell BS. 
     If it is detected at block  704  that the received enhanced paging message includes an indication that the enhanced paging message may be answered through a small cell BS, the logic flow continues at block  706 . Otherwise, the logic flow continues at block  710 . 
     At block  706 , the mobile device may be configured to receive a beacon. For example, the mobile device  300 - a  may be configured to receive a beacon with the timing for receiving the beacon based on the enhanced paging message  20 . More specifically, the beacon receiver  322 - 2  may configure the mobile device  300 - a  to receive the beacon  30 - a.    
     At block  708 , the mobile device may, responsive to receiving the enhanced paging message, establish a connection with the small cell BS. For example, the mobile device  300 - a  may transmit a connection request to the small cell BS and establish a relay connection with the small cell BS. More specifically, the small cell BS connector  322 - 3  may transmit the connection request  40 - a  to the small cell BS  200 - a  and establish the relay connection  50 - a  with the small cell BS  200 - a.    
     At block  710 , the mobile device may, responsive to receiving the enhanced paging message, establish a connection with the macro BS. For example, the mobile device  300 - a  may transmit a connection request to the macro BS and establish a connection with the macro BS. 
       FIG. 10  illustrates an embodiment of a storage medium  800 . The storage medium  800  may comprise an article of manufacture. In some examples, the storage medium  800  may include any non-transitory computer readable medium or machine readable medium, such as an optical, magnetic or semiconductor storage. The storage medium  800  may store various types of computer executable instructions. For example, the storage medium  800  may store various types of computer executable instructions to implement logic flow  400 . In some examples, the storage medium  800  may store various types of computer executable instructions to implement logic flow  500 . With some examples, the storage medium  800  may store various types of computer executable instructions to implement logic flow  600 . With some examples, the storage medium  800  may store various types of computer executable instructions to implement logic flow  700 . 
     Examples of a computer readable or machine readable storage medium may include any tangible media capable of storing electronic data, including volatile memory or non-volatile memory, removable or non-removable memory, erasable or non-erasable memory, writeable or re-writeable memory, and so forth. Examples of computer executable instructions may include any suitable type of code, such as source code, compiled code, interpreted code, executable code, static code, dynamic code, object-oriented code, visual code, and the like. The examples are not limited in this context. 
       FIG. 11  illustrates an embodiment of a device  2000 . In some examples, device  2000  may be configured or arranged for multi-RAT communications in a HetNet such as the HetNet  1000  shown in  FIG. 1 . In some examples, the macro BS  100  may be implemented in the device  2000 . For example, the device  2000  may implement the macro BS as apparatus  100 . With some examples, the small cell BS  200 - a  may be implemented in the device  2000 . For example, the device  2000  may implement the small cell BS as apparatus  200 - a . In some examples, the mobile device  300 - a  may be implemented in the device  2000 . For example, the device  2000  may implement the mobile device as apparatus  300 - a . Additionally, the device  2000  may implement storage medium  800  and/or a logic circuit  400 / 500 / 600 / 700 . The logic circuits may include physical circuits to perform operations described for the apparatus  100 ,  200 - a ,  300 - a , storage medium  800 , logic flow  400 , logic flow  500 , logic flow  600 , and/or logic flow  700 . As shown in  FIG. 10 , device  2000  may include a radio interface  2110 , baseband circuitry  2120 , and computing platform  2130 , although examples are not limited to this configuration. 
     The device  2000  may implement some or all of the structure and/or operations for the apparatus  100 / 200 - a /d 300 - a , the storage medium  700  and/or the logic circuit  400 / 500 / 600  in a single computing entity, such as entirely within a single device. The embodiments are not limited in this context. 
     Radio interface  2110  may include a component or combination of components adapted for transmitting and/or receiving single carrier or multi-carrier modulated signals (e.g., including complementary code keying (CCK) and/or orthogonal frequency division multiplexing (OFDM) symbols and/or single carrier frequency division multiplexing (SC-FDM symbols) although the embodiments are not limited to any specific over-the-air interface or modulation scheme. Radio interface  2110  may include, for example, a receiver  2112 , a transmitter  2116  and/or a frequency synthesizer  2114 . Radio interface  2110  may include bias controls, a crystal oscillator and antennas  2118 - 1  to  2118 - f . In another embodiment, radio interface  2110  may use external voltage-controlled oscillators (VCOs), surface acoustic wave filters, intermediate frequency (IF) filters and/or RF filters, as desired. Due to the variety of potential RF interface designs an expansive description thereof is omitted. 
     Baseband circuitry  2120  may communicate with radio interface  2110  to process receive and/or transmit signals and may include, for example, an analog-to-digital converter  2122  for down converting received signals, a digital-to-analog converter  2124  for up converting signals for transmission. Further, baseband circuitry  2120  may include a baseband or physical layer (PHY) processing circuit  2126  for PHY link layer processing of respective receive/transmit signals. Baseband circuitry  2120  may include, for example, a processing circuit  2128  for medium access control (MAC)/data link layer processing. Baseband circuitry  2120  may include a memory controller  2132  for communicating with MAC processing circuit  2128  and/or a computing platform  2130 , for example, via one or more interfaces  2134 . 
     In some embodiments, PHY processing circuit  2126  may include a frame construction and/or detection module, in combination with additional circuitry such as a buffer memory, to construct and/or deconstruct communication frames (e.g., containing subframes). Alternatively or in addition, MAC processing circuit  2128  may share processing for certain of these functions or perform these processes independent of PHY processing circuit  2126 . In some embodiments, MAC and PHY processing may be integrated into a single circuit. 
     Computing platform  2130  may provide computing functionality for device  2000 . As shown, computing platform  2130  may include a processing component  2140 . In addition to, or alternatively of, baseband circuitry  2120  of device  2000  may execute processing operations or logic for the apparatus  100 / 200 - a / 300 - a , storage medium  800 , and logic circuit  400 / 500 / 600 / 700  using the processing component  2130 . Processing component  2140  (and/or PHY  2126  and/or MAC  2128 ) may comprise various hardware elements, software elements, or a combination of both. Examples of hardware elements may include devices, logic devices, components, processors, microprocessors, circuits, processor circuits, circuit elements (e.g., transistors, resistors, capacitors, inductors, and so forth), integrated circuits, application specific integrated circuits (ASIC), programmable logic devices (PLD), digital signal processors (DSP), field programmable gate array (FPGA), memory units, logic gates, registers, semiconductor device, chips, microchips, chip sets, and so forth. Examples of software elements may include software components, programs, applications, computer programs, application programs, system programs, software development programs, machine programs, operating system software, middleware, firmware, software modules, routines, subroutines, functions, methods, procedures, software interfaces, application program interfaces (API), instruction sets, computing code, computer code, code segments, computer code segments, words, values, symbols, or any combination thereof. Determining whether an example is implemented using hardware elements and/or software elements may vary in accordance with any number of factors, such as desired computational rate, power levels, heat tolerances, processing cycle budget, input data rates, output data rates, memory resources, data bus speeds and other design or performance constraints, as desired for a given example. 
     Computing platform  2130  may further include other platform components  2150 . Other platform components  2150  include common computing elements, such as one or more processors, multi-core processors, co-processors, memory units, chipsets, controllers, peripherals, interfaces, oscillators, timing devices, video cards, audio cards, multimedia input/output (I/O) components (e.g., digital displays), power supplies, and so forth. Examples of memory units may include without limitation various types of computer readable and machine readable storage media in the form of one or more higher speed memory units, such as read-only memory (ROM), random-access memory (RAM), dynamic RAM (DRAM), Double-Data-Rate DRAM (DDRAM), synchronous DRAM (SDRAM), static RAM (SRAM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, polymer memory such as ferroelectric polymer memory, ovonic memory, phase change or ferroelectric memory, silicon-oxide-nitride-oxide-silicon (SONOS) memory, magnetic or optical cards, an array of devices such as Redundant Array of Independent Disks (RAID) drives, solid state memory devices (e.g., USB memory, solid state drives (SSD) and any other type of storage media suitable for storing information. 
     Computing platform  2130  may further include a network interface  2160 . In some examples, network interface  2160  may include logic and/or features to support network interfaces operated in compliance with one or more wireless broadband technologies such as those described in one or more standards associated with IEEE 802.11 such as IEEE 802.11u or with technical specification such as WFA Hotspot 2.0. 
     Device  2000  may be part of a source or destination node in a MIMO system and may be included in various types of computing devices to include, but not limited to, user equipment, a computer, a personal computer (PC), a desktop computer, a laptop computer, a notebook computer, a netbook computer, a tablet computer, an ultra-book computer, a smart phone, embedded electronics, a gaming console, a server, a server array or server farm, a web server, a network server, an Internet server, a work station, a mini-computer, a main frame computer, a supercomputer, a network appliance, a web appliance, a distributed computing system, multiprocessor systems, processor-based systems, or combination thereof. Accordingly, functions and/or specific configurations of device  2000  described herein; may be included or omitted in various embodiments of device  2000 , as suitably desired. In some embodiments, device  2000  may be configured to be compatible with protocols and frequencies associated with IEEE 802.11 Standards or Specification and/or 3GPP Standards or Specifications for MIMO systems, although the examples are not limited in this respect. 
     The components and features of device  2000  may be implemented using any combination of discrete circuitry, application specific integrated circuits (ASICs), logic gates and/or single chip architectures. Further, the features of device  2000  may be implemented using microcontrollers, programmable logic arrays and/or microprocessors or any combination of the foregoing where suitably appropriate. It is noted that hardware, firmware and/or software elements may be collectively or individually referred to herein as “logic” or “circuit.” 
     It should be appreciated that the exemplary device  2000  shown in the block diagram of  FIG. 8  may represent one functionally descriptive example of many potential implementations. Accordingly, division, omission or inclusion of block functions depicted in the accompanying figures does not infer that the hardware components, circuits, software and/or elements for implementing these functions would be necessarily be divided, omitted, or included in embodiments. 
     Some examples may be described using the expression “in one example” or “an example” along with their derivatives. These terms mean that a particular feature, structure, or characteristic described in connection with the example is included in at least one example. The appearances of the phrase “in one example” in various places in the specification are not necessarily all referring to the same example. 
     Some examples may be described using the expression “coupled”, “connected”, or “capable of being coupled” along with their derivatives. These terms are not necessarily intended as synonyms for each other. For example, descriptions using the terms “connected” and/or “coupled” may indicate that two or more elements are in direct physical or electrical contact with each other. The term “coupled,” however, may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other. 
     What has been described above includes examples of the disclosed architecture. It is, of course, not possible to describe every conceivable combination of components and/or methodologies, but one of ordinary skill in the art may recognize that many further combinations and permutations are possible. Accordingly, the novel architecture is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. The detailed disclosure now turns to providing examples that pertain to further embodiments. The examples provided below are not intended to be limiting. 
     Example 1 
     An apparatus for a macro base station in a heterogeneous network. The apparatus including circuitry, a macro base station pager for execution by the circuitry to transmit an enhanced paging message, the enhanced paging message to include an indication that the paging message may be answered through a small cell base station, a small cell base station configurator for execution by the circuitry to transmit configuration information to the small cell base station, the configuration information to cause the small cell base station to transmit a beacon to establish a relay connection with a mobile device and a macro base station backhauler for execution by the circuitry to establish a backhaul connection with the small cell base station to communicate signals with the small cell base station related to the relay connection. 
     Example 2 
     The apparatus of example 1, wherein the enhanced paging message is intended for the mobile device, the apparatus further comprising a paging response receiver for execution by the circuitry to receive the mobile device&#39;s response to the enhanced paging message from the small cell base station. 
     Example 3 
     The apparatus of example 2, further comprising a connection identifier for execution by the circuitry to receive an indication from the small cell base station that the mobile device has established a connection with the small cell base station, the macro base station pager to cease transmitting the enhanced paging message based at least in part on the received indication that the mobile device has established a connection with the small cell base station. 
     Example 4 
     The apparatus of example 3, wherein the received indication includes an identification corresponding to the mobile device. 
     Example 5 
     The apparatus of any one of examples 3 to 4, wherein the connection between the mobile device and the small cell base station is a mmWave connection. 
     Example 6 
     The apparatus of example 1, wherein the enhanced paging message is intended for the small cell base station, the enhanced paging message to include an indication that the small cell base station is to transmit a beacon with the transmission time for transmitting the beacon based at least in part on the enhanced paging message. 
     Example 7 
     The apparatus of any one of examples 1 to 6, the macro base station backhauler to establish context information between the small cell base station and the macro base station, the context information to include one or more indications selected from the group consisting of (i) indications of setup bearers, (ii) indications of mobile stations served by the small cell base station, (iii) indications of a mobile stations served by the small cell base station, (iv) indications of resources of the time, frequency, or power domain to be used by the small cell base station, or (v) indications of minimum or average quality of service provided with the setup bearers. 
     Example 8 
     The apparatus of any one of examples 1 to 7, the enhanced paging message to include at least one of the following: (a) an indication that the macro base station accepts a longer response time to accommodate a response through the small cell base station; (b) an indication that the small cell base station is to broadcast a beacon and support establishing a connection with the mobile device; (c) an indication of a frequency band in which signals from the mobile device are to be detected; or (d) an indication of a frequency band in which the beacon signal is to be transmitted. 
     Example 9 
     The apparatus of any one of examples 1 to 7, further comprising an antenna, the small cell base station configurator operative on the antenna to transmit the configuration information to the small cell base station using the antenna. 
     Example 10 
     The apparatus of any one of examples 1 to 7, further comprising an anntenna, the macro base station backhauler operative on the antenna to establish the backhaul connection with the small cell base station using the antenna. 
     Example 11 
     The apparatus of any one of examples 9 to 10, the antenna to transmit and receive signals on a mmWave frequency band. 
     Example 12 
     The apparatus of any one of examples 1 to 7, wherein the macro base station is communicatively coupled to the small cell base station using a hardwired link, the small cell base station configurator operative on the hardwired link to transmit the configuration information to the small cell base station using the hardwired link. 
     Example 13 
     An apparatus for a small cell base station in a heterogeneous network. The apparatus including circuitry, a beacon transmission scheduler for execution by the circuitry to receive scheduling information from a macro base station, the scheduling information to include indications of timing for transmitting a beacon signal, a beacon transmitter for execution by the circuitry to transmit the beacon signal based at least in part on the received scheduling information, a mobile device connector for execution by the circuitry to receive a request from the mobile device to establish a connection and to establish the connection with the mobile device, a small cell backhauler for execution by the circuitry to establish a backhaul connection with the macro base station to communicate signals with the macro base station related to the connection with the mobile device, and a radio relay connector for execution by the circuitry to establish a relay connection with the mobile device based at least in part on the received connection request, the relay connection to connect the mobile device to the macro base station through the small cell base station. 
     Example 14 
     The apparatus of example 13, the scheduling information to include indications that the schedule for transmission of the beacon signal is based at least in part on the time of transmission of an enhanced paging message. 
     Example 15 
     The apparatus of any one of examples 13 to 14, the scheduling information to include an identification corresponding to the small cell base station. 
     Example 16 
     The apparatus of any one of examples 13 to 15, the beacon transmission scheduler to derive the scheduling information from an enhanced paging message transmitted from the macro base station. 
     Example 17 
     The apparatus of example 16, wherein the enhanced paging message is transmitted to the mobile device. 
     Example 18 
     The apparatus of any one of examples 13 to 17, the beacon transmitter to transmit the beacon signal on a selected frequency. 
     Example 19 
     The apparatus of example 18, wherein the selected frequency is specified in the enhanced paging message. 
     Example 20 
     The apparatus of any one of examples 13 to 19, further comprising a mmWave beam-forming antenna, the mobile device connector operable on the mmWave beam-forming antenna to establish the connection with the mobile device using a mmWave beam forming connection. 
     Example 21 
     The apparatus of any one of examples 13 to 20, wherein the request from the mobile device to establish a connection is sent on a random access channel. 
     Example 22 
     The apparatus of any one of examples 13 to 21, further comprising a mobile device connection reporter for execution by the circuitry to transmit an indication to the macro base station that a connection establishment request has been received from the mobile device, the indication to include an identification corresponding to the mobile device. 
     Example 23 
     An apparatus for a mobile device in a heterogeneous network. The apparatus including circuitry, an enhanced paging message receiver executable by the circuitry to receive an enhanced paging message, the enhanced paging message to include an indication that the enhanced paging message may be answered through a small cell base station, a beacon receiver executable by the circuitry to configure the mobile device to receive a beacon signal, and a small cell base station connector executable by the circuitry to establish a connection with the small cell base station responsive to the reception of the enhanced paging message. 
     Example 24 
     The apparatus of example 23, the beacon receiver to configure the mobile device to receive the beacon signal based at least in part on the timing of the enhanced paging message. 
     Example 25 
     The apparatus of example 23, wherein the enhanced paging message includes an indication of the timing in which the small cell base station will transmit a beacon signal, the beacon receiver to configured the mobile device to receive the beacon signal is based at least in part on the indication of the timing in which the small cell base station will transmit a beacon signal. 
     Example 26 
     The apparatus of any one of examples 23 to 25, wherein the enhanced paging message includes an indication of the frequency in which the beacon signal will be transmitted, the beacon receiver to configure the mobile device to receive the beacon signal using the indicated frequency. 
     Example 27 
     The apparatus of any one of examples 23 to 26, wherein the mobile device is a first mobile device and wherein the enhanced paging message is intended for either or both of a second mobile device and the small cell base station. 
     Example 28 
     The apparatus of any one of examples 23 to 27, the small cell base station connector to transmit a request to establish a connection to the small cell base station. 
     Example 29 
     The apparatus of example 28, wherein the request is sent on a random access channel. 
     Example 30 
     The apparatus of any one of examples 23 to 29, wherein the connection with the small cell base station is a mmWave beam-forming connection. 
     Example 31 
     The apparatus of any one of examples 23 to 30, further comprising an enhanced paging message responder executable by the circuitry to transmit a response to the enhanced paging message to the macro base station using a relay connection, the relay connection connecting the mobile device to the macro base station through the small cell base station. 
     Example 32 
     A method implemented by a macro base station in a heterogeneous network. The method including transmitting an enhanced paging message, the enhanced paging message to include an indication that the paging message may be answered through a small cell base station, transmitting configuration information to the small cell base station, the configuration information to cause the small cell base station to transmit a beacon to establish a relay connection with a mobile device, and establishing a backhaul connection with the small cell base station to communicate signals with the small cell base station related to the relay connection. 
     Example 33 
     The method of example 32, wherein the enhanced paging message is intended for the mobile device, the method further comprising receiving the mobile devices response to the enhanced paging message from the small cell base station. 
     Example 34 
     The method of any one of examples 32 to 33, further including: receiving an indication from the small cell base station that the mobile device has established a connection with the small cell base station, and ceasing transmitting the enhanced paging message based at least in part on the received indication that the mobile device has established a connection with the small cell base station. 
     Example 35 
     The method of example 34, wherein the received indication includes an identification corresponding to the mobile device. 
     Example 36 
     The method of any one of examples 32 to 35, wherein the connection between the mobile device and the small cell base station is a mmWave connection. 
     Example 37 
     The method of any one of examples 32 to 36, wherein the enhanced paging message is intended for the small cell base station, the enhanced paging message to include an indication that the small cell base station is to transmit a beacon with the transmission time for transmitting the beacon based at least in part on the enhanced paging message. 
     Example 38 
     The method of any one of examples 32 to 37, the enhanced paging message to include at least one of the following: (a) an indication that the macro base station accepts a longer response time to accommodate a response through the small cell base station; (b) an indication that the small cell base station is to broadcast a beacon and support establishing a connection with the mobile device; (c) an indication of a frequency band in which signals from the mobile device are to be detected; or (d) an indication of a frequency band in which the beacon signal is to be transmitted. 
     Example 39 
     The method of any one of examples 32 to 38, wherein the configuration information is transmitted to the small cell base station using an antenna. 
     Example 40 
     The method of any one of examples 32 to 39, wherein the backhaul connection with the small cell base station is established using an antenna. 
     Example 41 
     The method of example 40, wherein the backhaul connection with the small cell base station is on a mmWave frequency band. 
     Example 42 
     The method of any one of examples 32 to 39, wherein the configuration information is transmitted to the small cell base station using a hardwired link. 
     Example 43 
     A method implemented by a small cell base station in a heterogeneous network. the method including receiving scheduling information from a macro base station, the scheduling information to include indications of a timing for transmitting of a beacon signal, transmitting the beacon signal based at least in part on the received scheduling information, receiving a request from the mobile device to establish a connection, establishing the connection with the mobile device, establishing a backhaul connection with the macro base station to communicate signals with the macro base station related to the connection with the mobile device, and establishing a relay connection with the mobile device based at least in part on the received connection request, the relay connection to connect the mobile device to the macro base station through the small cell base station. 
     Example 44 
     The method of example 43, the schedule for transmission of the beacon signal based at least in part on the time of transmission of an enhanced paging message. 
     Example 45 
     The method of any one of examples 43 to 44, the scheduling information to include an identification corresponding to the small cell base station. 
     Example 46 
     The method of any one of examples 43 to 45, further comprising deriving the scheduling information from an enhanced paging message transmitted from the macro base station. 
     Example 47 
     The method of example 46, wherein the enhanced paging message is transmitted to the mobile device. 
     Example 48 
     The method of any one of examples 43 to 47, further comprising transmitting the beacon signal on a selected frequency. 
     Example 49 
     The method of example 48, wherein the selected frequency is specified in the enhanced paging message. 
     Example 50 
     The method of any one of examples 43 to 49, wherein the connection with the mobile device is established using a mmWave beam forming antenna. 
     Example 51 
     The method of any one of examples 43 to 50, wherein the request from the mobile device to establish a connection is sent on a random access channel. 
     Example 52 
     The method of any one of examples 43 to 51, further comprising transmitting an indication to the macro base station that a connection establishment request has been received from the mobile device, the indication to include an identification corresponding to the mobile device. 
     Example 53 
     A method implemented in a mobile device in a heterogeneous network. The method including receiving an enhanced paging message, the enhanced paging message to include an indication that the enhanced paging message may be answered through a small cell base station, configuring the mobile device to receive a beacon signal, and responsive to receiving enhanced paging message, establishing a connection with the small cell base station. 
     Example 54 
     The method of example 53, wherein configuring the mobile device to receive the beacon signal is based at least in part on the timing of the enhanced paging message. 
     Example 55 
     The method of example 53, wherein the enhanced paging message includes an indication of the timing in which the small cell base station will transmit the beacon signal and wherein configuring the mobile device to receive the beacon signal is based at least in part on the indication of the timing in which the small cell base station will transmit the beacon signal. 
     Example 56 
     The method of any one of examples 53 to 55, wherein the enhanced paging message includes an indication of the frequency in which the beacon signal will be transmitted, the method further comprising receiving the beacon signal using the indicated frequency. 
     Example 57 
     The method of any one of examples 53 to 56, wherein the mobile device is a first mobile device and wherein the enhanced paging message is intended for either or both of a second mobile device and the small cell base station. 
     Example 58 
     The method of any one of examples 53 to 57, further comprising transmitting a request to establish a connection to the small cell base station. 
     Example 59 
     The method of example 58, wherein the request is sent on a random access channel. 
     Example 60 
     The method of any one of examples 53 to 59, wherein the connection with the small cell base station is a mmWave beam-forming connection. 
     Example 61 
     The method of any one of examples 53 to 60, further comprising transmitting a response to the enhanced paging message to the macro base station using a relay connection, the relay connection connecting the mobile device to the macro base station through the small cell base station. 
     Example 62 
     An apparatus comprising means to perform the method of any one of examples 32 to 61. 
     Example 63 
     At least one machine readable medium comprising a plurality of instructions that in response to being executed on a macro base station, a small cell base station, or a mobile device in a heterogeneous network cause either the macro base station, the small cell base station, or the mobile device to perform the method of any of examples 32 to 61.