Wireless cellular service providers use base stations to implement wireless communication links between user equipment, such as mobile phones, and the service provider's core network. A base station is typically in communication with one or more antennas that receive and transmit radio frequency signals to and from user equipment. The coverage area of a base station is limited by the transmit power of the associated signals. Moreover, the coverage provided by the transmitted signals is influenced by many other factors such as physical obstacles and interference. Hence, wireless coverage in buildings and stadiums has been traditionally poor when served only from conventional “macro” base stations.
One way that a wireless cellular service provider can improve the coverage provided by a given base station or group of base stations is by using a distributed antenna system (DAS). In a typical DAS, radio frequency (RF) signals are transported between a master unit and one or more remote antenna units using one or more transport cables. The master unit is communicatively coupled to one or more base stations.
Traditionally, RF signals transmitted from the base stations (also referred to here as “downlink RF signals”) are received at the master unit. The master unit uses the downlink RF signals to generate one or more downlink transport signals that are distributed to one or more of the remote antenna units over the transport cables. Each such remote antenna unit receives a downlink transport signal and generates a version of the downlink RF signals based on the downlink transport signal and causes the generated downlink RF signals to be radiated from at least one antenna coupled to or included in that remote antenna unit. A similar process is performed in the uplink direction. RF signals transmitted are from user equipment (also referred to here as “uplink RF signals”). Each such uplink RF signal is intended for a base station coupled to the master unit. Each remote antenna unit receives uplink RF signals transmitted from user equipment within its associated coverage area.
Each remote antenna unit uses the received uplink RF signals to generate an uplink transport signal that is transmitted from the remote antenna unit to the master unit. The master unit receives uplink transport signals from the various remote antenna units coupled to it. For each base station coupled to the master unit, the master unit combines uplink signals intended for that base station that are received from the various remote antenna units.
For each base station coupled to the master unit, the master unit ultimately generates uplink RF signals from the combined uplink signals for that base station, which are provided to that base station. Each remote antenna unit can be coupled to each master unit either directly or indirectly via one or more intermediate devices (such as another remote antenna unit or an expansion unit). In this way, the coverage of each base station can be expanded using the DAS.
The antennas used to radiate the downlink RF signals to user equipment and receive uplink signals from the user equipment are mounted in areas needing coverage by the DAS such as ceilings of buildings. Typical mounting includes the use of a hollow pole passing through a hole in a suspended ceiling that is retained by the suspended ceiling with a nut. The antenna is then mounted on an end of the pole extending through the ceiling. Other known mounting systems may reduce the effective height of the antenna mounting level which reduces a safety space between people and a beam radiation level.
The following summary is made by way of example and not by way of limitation. It is merely provided to aid the reader in understanding some of the aspects of the subject matter described. Embodiments provide an antenna mounting system to mount a DNS antenna in a suspended ceiling.
In one embodiment, an antenna mounting system that includes a base member, a plurality of spaced retaining attachment section and retaining members is provided. The base member has a central passage that is configured to receive an antenna shaft. The plurality of spaced retaining attachment sections are coupled to the base member. A retaining member is coupled to each retaining attachment section. Each retaining member has an engagement portion that is configured to engage an upper surface of a ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling.
In another example embodiment, an antenna mounting system that includes a base member, a sidewall, a plurality of spaced retaining attachment sections and a retaining member coupled to retaining attachment section is provided. The base member includes a disk portion that has a first surface and a second surface. The disk portion has first a central passage that is configured to receive an antenna shaft. The sidewall extends from the first surface of the disk portion at least partially around the central passage. The plurality of spaced retaining attachment sections are coupled the disk portion and sidewall. The retaining member has an engagement portion that is configured to engage an upper surface of a ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling.
In yet another embodiment, an antenna mounting system and antenna for a distributed antenna system is provided. The system includes a base member, a plurality of spaced retaining attachment sections, and a retaining member coupled to each retaining attachment section. The base member includes a disk portion that has a first surface and a second surface. The disk portion has a central passage. The plurality of spaced retaining attachment sections are coupled to the first surface of the disk portion around the central passage. The retaining member is coupled to each retaining attachment section. The retaining member has an engagement portion that is configured to engage an upper surface of ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling. The system further includes an antenna system including an antenna, an antenna shaft and a retaining nut. The antenna has a first surface that is configured to engage the second surface of the disk portion. The antenna shaft is configured to be received within the central passage of the disk portion of the base member. The retaining nut is configured to threadably engage threads on the antenna shaft to couple the antenna system to the disk portion of the base member.
Embodiments can be more easily understood and further advantages and uses thereof will be more readily apparent, when considered in view of the detailed description and the following figures in which:
In accordance with common practice, the various described features are not drawn to scale but are drawn to emphasize specific features relevant to the subject matter described. Reference characters denote like elements throughout Figures and text.
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the inventions may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the claims and equivalents thereof.
Embodiments provide an antenna mounting system to mount a DNS antenna in a suspended or false ceiling.
An example of a retaining member 120 is illustrated in
The base member 102, of an embodiment is further illustrated in detail in
As also discussed above, a sidewall 104 extends from the first surface 103a of the disk portion 103. The sidewall 104 in this example embodiment is generally cylindrical in shape. Each retaining attachment section 105 formed in the sidewall 104 includes an arm cutout section 107 as best illustrated in
Each respective retaining member 120 is coupled to an associated retaining attachment section 105. In particular, the biasing portion 124 is positioned so that opposite end sections of the coils of the biasing portion 124 of the retaining member 120 are received around respective retaining arms 108a and 108b of the retaining attachment section 105 as best illustrated in
Each retaining member 120 further includes a pair of spaced retaining walls 112a and 112b as best illustrated in
As best illustrated in
As best seen in
As discussed above, the antenna mounting system 100 provides a mounting system in a suspended ceiling for an antenna, such as an antenna used in a DAS. An example if an antenna system 200 mounted to the antenna mounting system 100 is illustrates in FIG. 7. An antenna shaft 204, that is attached to the antenna 202, is positioned within the central passage 130 in the disk portion 103 of the antenna mounting system 100. A threaded retaining nut 206, that threadably engages a threaded portion of the antenna shaft 204, locks the antenna 202 to the antenna mounting system 100. As further illustrated, communication cables 210 and 212 that are in communication with the antenna 202 are housed within the antenna shaft 204.
An illustration of the antenna mounting system 100 mounting the antenna system 200 to a suspended ceiling 300 is illustrated in
In mounting the antenna mounting system 100 and antenna system 200 to a suspended ceiling 300, a hole is cutout of the suspended ceiling 300. The communication cables 210 and 212 are routed through the hole in the suspended ceiling 300 and the antenna shaft 204 and are coupled to the antenna system 200. The antenna shaft 204 is positioned through the central passage 130 in the disk portion 103 of the antenna mounting system 100. The threaded retaining nut 206 is then used to threadably engages a threaded portion of the antenna shaft 204 to lock the antenna 202 to the antenna mounting system 100. The engaging portions 122 of the retaining members 120 are positioned in a straight up position by a technician to allow the sidewall 104 of the base member to be received within the hole of the suspended ceiling 300. Once the engaging portions 122 clear the upper surface 302a of the suspended ceiling 300, the biasing portions 124 of the retaining members 120 cause the engaging portions 122 of the retaining members 120 to rotate to engage the upper surface 302a of the suspended ceiling 300 thereby automatically locking the antenna mounting system 100 and antenna system 200 to the suspended ceiling 300.
Example 1 includes an antenna mounting system including a base member, a plurality of spaced retaining attachment section and retaining members. The base member has a central passage that is configured to receive an antenna shaft. The plurality of spaced retaining attachment sections are coupled to the base member. A retaining member is coupled to each retaining attachment section. Each retaining member has an engagement portion that is configured to engage an upper surface of a ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling.
Example 2 includes the antenna mounting system of Example 1, further wherein the base member includes a disk portion and a sidewall. The disk portion includes the central passage. The sidewall extends from a first surface of the disk portion at least partially around the central passage. Each retaining attachment section is located within the sidewall.
Example 3 includes the antenna mounting system of any of the Examples 1-2, wherein at least one of the plurality of spaced retaining attachment sections further includes a first retaining wall and a second retaining wall that is spaced from the first retaining wall. The first retaining wall and the second retaining wall, at least in part, extend from the sidewall towards the central passage.
Example 4 includes the antenna mounting system of Example 3, further including a first retaining arm and a second retaining arm. The first retaining arm extends from the first retaining wall. The first retaining arm is configured to hold a first portion of the biasing portion of the retaining member. The second retaining arm extends from the second retaining wall. The second retaining arm is configured to hold a second portion of the biasing portion of the retaining member. Further wherein the first retaining arm extends from the first retaining wall towards the second retaining arm and the second retaining arm extends from the second retaining wall towards the first retaining arm.
Example 5 includes the antenna mounting system of any of the Examples 3-4, further including a ledge portion that is coupled to an end of one of the first and second retaining walls, the ledge portion including a retaining groove.
Example 6 includes the antenna mounting system of any of the Examples 3-5, wherein the disk portion has a retaining member cutout section for at least one retaining attachment section. The retaining member cutout section located between the first retaining wall and the second retaining wall of the at least one retaining attachment section.
Example 7 includes the antenna mounting system of any of the Examples 2-6, further including a ring portion that defines the central passage. The ring portion is attached to the disk portion of the base member via opposable positioned attaching members.
Example 8 includes the antenna mounting system of Example 7, wherein the disk portion of the base member has a pair of opposable positioned domed cutout sections. The opposable positioned domed cutout sections positioned between the ring portion and the central passage.
Example 9 includes the antenna mounting system of any of the Examples 2 8, wherein the disk portion further includes a second surface configured to engage a surface of an antenna.
Example 10 includes an antenna mounting system including a base member, a sidewall, a plurality of spaced retaining attachment sections and a retaining member coupled to retaining attachment section. The base member includes a disk portion that has a first surface and a second surface. The disk portion has first a central passage that is configured to receive an antenna shaft. The sidewall extends from the first surface of the disk portion at least partially around the central passage. The plurality of spaced retaining attachment sections are coupled the disk portion and sidewall. The retaining member has an engagement portion that is configured to engage an upper surface of a ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling.
Example 11 includes an antenna mounting system of Example 10, wherein each retaining attachment section further includes a first retaining wall and a second retaining wall that is spaced from the first retaining wall. The first retaining wall and the second retaining wall at least in part extend from the sidewall towards the central passage. A first retaining arm extends from the first retaining wall. The first retaining arm is configured to hold a first portion of the biasing portion of the retaining member. A second retaining arm extends from the second retaining wall. The second retaining arm is configured to hold a second portion of the biasing portion of the retaining member. Further wherein the first retaining arm extends from the first retaining wall towards the second retaining arm and the second retaining arm extends from the second retaining wall towards the first retaining arm.
Example 12 includes the antenna mounting system of any of the Examples 10-11, further including a ledge portion coupled to an end of the of the second retaining wall, the ledge portion including a retaining groove.
Example 13 includes the antenna mounting system of any of the Examples 10-12, wherein the disk portion has a retaining member cutout section for each retaining attachment section. Each retaining member cutout section is located between the first retaining wall and the second retaining wall of an associated retaining attachment section.
Example 14 includes the antenna mounting system of any of the Examples 10-13, further including a ring portion that defines the central passage. The ring portion is attached to the disk portion of the base member via opposable positioned attaching members.
Examples 15 includes an antenna mounting system and antenna for a distributed antenna system, the system includes a base member, a plurality of spaced retaining attachment sections, and a retaining member coupled to each retaining attachment section. The base member includes a disk portion that has a first surface and a second surface. The disk portion has a central passage. The plurality of spaced retaining attachment sections are coupled to the first surface of the disk portion around the central passage. The retaining member is coupled to each retaining attachment section. The retaining member has an engagement portion that is configured to engage an upper surface of ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling. The system further includes an antenna system including an antenna, an antenna shaft and a retaining nut. The antenna has a first surface that is configured to engage the second surface of the disk portion. The antenna shaft is configured to be received within the central passage of the disk portion of the base member. The retaining nut is configured to threadably engage threads on the antenna shaft to couple the antenna system to the disk portion of the base member.
Example 16 includes the system of claim 15, wherein the base member further includes a sidewall extending from the first surface of the disk portion at least partially around the central passage.
Example 17 includes the system of any of the Examples 15-16, wherein each retaining attachment section further includes a first retaining wall, second retaining wall, a first retaining arm and a second retaining arm. The second retaining wall is spaced from the first retaining wall. The first retaining wall and the second retaining wall at least in part extend from the sidewall towards the central passage. The first retaining arm extends from the first retaining wall. The first retaining arm is configured to hold a first portion of the biasing portion of the retaining member. The second retaining arm extends from the second retaining wall. The second retaining arm is configured to hold a second portion of the biasing portion of the retaining member. Further wherein the first retaining arm extends from the first retaining wall towards the second retaining arm and the second retaining arm extends from the second retaining wall towards the first retaining arm.
Example 18 includes the system of any of the Examples 15-17, further including a ledge portion that is coupled to an end of the second retaining wall. The ledge portion includes a retaining groove.
Example 19 includes the system of any of the Examples 17-18, wherein the disk portion has a retaining member cutout section for each retaining attachment section. Each retaining member cutout section is located between the first retaining wall and the second retaining wall of an associated retaining attachment section.
Example 20 includes the system of any Examples 15-20, further including a ring portion that defines the central passage. The ring portion is attached to the disk portion of the base member via opposable positioned attaching members.
Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement, which is calculated to achieve the same purpose, may be substituted for the specific embodiment shown. This application is intended to cover any adaptations or variations of the present invention. Therefore, it is manifestly intended that this invention be limited only by the claims and the equivalents thereof.
Number | Date | Country | Kind |
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202010892296.8 | Aug 2020 | CN | national |
This application claims priority to Chinese Application No. 202010892296.8 filed on Aug. 31, 2020, same title herewith, and U.S. Provisional Application Ser. No. 63/073,815, same title herewith, filed on Sep. 2, 2020, both of which are incorporated in their entirety herein by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/US2021/041634 | 7/14/2021 | WO |
Number | Date | Country | |
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63073815 | Sep 2020 | US |