Active antenna element (AAE) implementation for facilitating 6LoWPAN data access

• US 9,819,769 B2
• Filed: 04/20/2016
• Issued: 11/14/2017
• Est. Priority Date: 02/21/2014
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Chakrabarti, Samita, Larkins, John, Rius I Riu, Jaume, Fornehed, John, Lu, Chenguang
• Primary Examiner(s): ANWAR, MOHAMMAD S
• Application Number:
  US15/134,237
• Publication Number:
  US 20160234350A1
• Time in Patent Office: 573 Days
• CPC Class Codes: H04L 2101/659 Internet protocol version 6 [IPv6] addresses
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 84/22 with access to wired networks
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A scheme for providing access to 6LoWPAN data in a wireless access network comprising a Digital Unit (DU) coupled to one or more Radio Units (RU) via CPRI links, each RU in turn coupled to one or more radio dot (RD) elements via Ethernet cable links. In one embodiment, an RD element includes a cable front-end interfaced with the Ethernet cable link, a radio front-end interfaced between the cable front-end and an antenna or a suitable access point. A sensor component may be included that is configured to generate sensor data with respect to a measurement variable, which sensor data may be packaged in a 6LoWPAN data format for transmission to the RU element coupled to the RD element.

Claims

1. A radio dot (RD) element operable in an access system for providing access with respect to information in Internet Protocol (IP) version 6 (IPv6) over Low Power Wireless Personal Area Network (6LoWPAN) format, the RD element comprising:

a cable front-end (FE) block for interfacing with an Ethernet cable link connecting to a Radio Unit (RU) element disposed in the access system, the cable FE block operating to facilitate transfer of 6LoWPAN data (6LO data) signals and radio communications data signals in a frequency spectrum comprising two or more intermediate frequency (IF) bands associated with the Ethernet cable link;

a radio FE block coupled to the cable FE block and an antenna operative to receive and transmit the radio communications data signals for effectuating radio communications with respect to one or more user equipment (UE) devices;

a sensor component configured to generate sensor data with respect to a measurement variable;

a processor coupled to the sensor component and a modem interfacing with the cable FE block, the processor configured to facilitate packaging of the sensor data as 6LO data packets; and

a control channel repackager operative under control of the processor for repackaging the 6LO data packets to be transmitted as upstream 6LO data signals modulated by the modem in a control signal band of the IF bands as a control channel message in a format specified for a control channel associated with the Ethernet cable link between the RU element and the RD element, wherein the control signal band is separate from uplink and downlink frequency bands of a frequency band plan comprising the two or more IF bands associated with the Ethernet cable link, the uplink and downlink frequency bands respectively for transmitting and receiving the radio communications data signals.

2. The RD element as recited in claim 1, wherein the sensor component comprises at least one or more of temperature sensors, moisture sensors, light sensors, pressure sensors, motion sensors, biological sensors, chemical sensors, and/or environmental quality sensors.

3. The RD element as recited in claim 1, wherein the cable FE block is operative to receive the radio communications data signals from the RU element relative to the radio communications in the downlink frequency band associated with the Ethernet cable link.

4. The RD element as recited in claim 1, wherein the cable FE block is operative to transmit the radio communications data signals to the RU element relative to the radio communications in the uplink frequency band associated with the Ethernet cable link.

5. The RD element as recited in claim 1, wherein the radio communications comprise at least one of 3rd Generation Partnership Project (3GPP)-compliant cellular radio communications and IEEE 802.11 communications.

6. The RD element as recited in claim 1, wherein the upstream 6LO data signals are repackaged as a Common Public Radio Interface (CPRI) control channel message by the RU element.

7. A radio dot (RD) element operable in an access system for providing access with respect to information in Internet Protocol (IP) version 6 (IPv6) over Low Power Wireless Personal Area Network (6LoWPAN) format, the RD element comprising:

a cable front-end (FE) block for interfacing with an Ethernet cable link connecting to a Radio Unit (RU) element disposed in the access system, the cable FE block operating to facilitate transfer of 6LoWPAN data (6LO data) signals and radio communications data signals in a frequency spectrum comprising two or more intermediate frequency (IF) bands associated with the Ethernet cable link;

a radio FE block coupled to the cable FE block and an antenna operative to receive and transmit the radio communications data signals for effectuating radio communications with respect to one or more user equipment (UE) devices;

a sensor component including a protocol stack configured to generate sensor data with respect to a measurement variable as 6LO data packets;

a processor coupled to the sensor component and a modem interfacing with the cable FE block; and

a control channel repackager operative under control of the processor for repackaging the 6LO data packets to be transmitted as upstream 6LO data signals modulated by the modem in a control signal band of the IF bands as a control channel message in a format specified for a control channel associated with the Ethernet cable link between the RU element and the RD element, wherein the control signal band is separate from uplink and downlink frequency bands of a frequency band plan comprising the two or more IF bands associated with the Ethernet cable link, the uplink and downlink frequency bands respectively for transmitting and receiving the radio communications data signals.

8. The RD element as recited in claim 7, wherein the sensor component comprises at least one or more of temperature sensors, moisture sensors, light sensors, pressure sensors, motion sensors, biological sensors, chemical sensors, and/or environmental quality sensors.

9. The RD element as recited in claim 7, wherein the cable FE block is operative to receive the radio communications data signals from the RU element relative to the radio communications in the downlink frequency band associated with the Ethernet cable link.

10. The RD element as recited in claim 7, wherein the cable FE block is operative to transmit the radio communications data signals to the RU element relative to the radio communications in the uplink frequency band associated with the Ethernet cable link.

11. The RD element as recited in claim 7, wherein the radio communications comprise at least one of 3rd Generation Partnership Project (3GPP)-compliant cellular radio communications and IEEE 802.11 communications.

12. The RD element as recited in claim 7, wherein the upstream 6LO data signals are repackaged as a Common Public Radio Interface (CPRI) control channel message by the RU element.

13. A radio dot (RD) element operable in an access system for providing access with respect to information in Internet Protocol (IP) version 6 (IPv6) over Low Power Wireless Personal Area Network (6LoWPAN) format, the RD element comprising:

a cable front-end (FE) block for interfacing with an Ethernet cable link connecting to a Radio Unit (RU) element disposed in the access system, the cable FE block operating to facilitate transfer of 6LoWPAN data (6LO data) signals and radio communications data signals in a frequency spectrum comprising two or more intermediate frequency (IF) bands associated with the Ethernet cable link;

a radio FE block coupled to the cable FE block and an antenna operative to receive and transmit the radio communications data signals for effectuating radio communications with respect to one or more user equipment (UE) devices;

an access point (AP) configured to facilitate transmission and reception of 6LO data packets with respect to one or more 6LoWPAN-compliant devices;

a processor coupled to the AP and a modem interfacing with the cable FE block; and

a control channel repackager operative under control of the processor for repackaging the 6LO data packets received via the AP to be transmitted as upstream 6LO data signals modulated by the modem in a control signal band of the IF bands as a control channel message in a format specified for a control channel associated with the Ethernet cable link between the RU element and the RD element, wherein the control signal band is separate from uplink and downlink frequency bands of a frequency band plan comprising the two or more IF bands associated with the Ethernet cable link, the uplink and downlink frequency bands respectively for transmitting and receiving the radio communications data signals.

14. The RD element as recited in claim 13, wherein the antenna of the radio FE block is shared by the AP.

15. The RD element as recited in claim 14, further comprising a filter operative to separate signals for effectuating radio communications with the UE devices from signals for effectuating the transmission and reception of 6LO data packets with respect to the 6LoWPAN-compliant devices.

16. The RD element as recited in claim 13, wherein the AP is coupled to a separate antenna operative to effectuate the transmission and reception of 6LO data packets with respect to the 6LoWPAN-compliant devices.

17. The RD element as recited in claim 13, wherein the cable FE block is operative to receive the radio communications data signals from the RU element relative to the radio communications in the downlink frequency band associated with the Ethernet cable link.

18. The RD element as recited in claim 13, wherein the cable FE block is operative to transmit the radio communications data signals to the RU element relative to the radio communications in the uplink frequency band associated with the Ethernet cable link.

19. The RD element as recited in claim 13, wherein the radio communications comprise at least one of 3rd Generation Partnership Project (3GPP)-compliant cellular radio communications and IEEE 802.11 communications.

20. The RD element as recited in claim 13, wherein the upstream 6LO data signals are repackaged as a Common Public Radio Interface (CPRI) control channel message by the RU element.

21. A method operating at a radio dot (RD) element disposed in an access system for providing access with respect to information in Internet Protocol (IP) version 6 (IPv6) over Low Power Wireless Personal Area Network (6LoWPAN) format, the method comprising:

obtaining source data;

determining if the source data is compliant with the 6LoWPAN format; and

if so, repackaging the 6LoWPAN-compliant source data to be transmitted as upstream 6LoWPAN data (6LO data) signals modulated in a control signal band of a frequency band plan associated with an Ethernet cable link between the RD element and a Radio Unit (RU) element coupled thereto and disposed in the access system and providing the upstream 6LO data signals to a cable front-end (FE) block interfacing with the Ethernet cable link, wherein the control signal band is separate from uplink and downlink frequency bands of the frequency band plan comprising two or more intermediate (IF) bands associated with the Ethernet cable link, the uplink and downlink frequency bands respectively for transmitting and receiving the radio communications data signals.

22. The method as recited in claim 21, further comprising:

upon determining that the source data is not 6LoWPAN-compliant, effectuating packaging of the non-compliant source data as 6LO data packets; and

repackaging the 6LO data packets to be transmitted as the upstream 6LO data signals modulated in the control signal band of the frequency band plan associated with the Ethernet cable link between the RD and RU elements.

23. The method as recited in claim 21, wherein the source data is obtained from a sensor component comprising at least one or more of temperature sensors, moisture sensors, light sensors, pressure sensors, motion sensors, biological sensors, chemical sensors, and/or environmental quality sensors.

24. The method as recited in claim 21, further comprising repackaging the upstream 6LO data signals as a Common Public Radio Interface (CPRI) control channel message at the RU element.

25. The method as recited in claim 21, wherein the source data is obtained via a 6LoWPAN access point (AP) configured to facilitate transmission and reception of 6LoWPAN data packets with respect to one or more 6LoWPAN-compliant devices.

26. A non-transitory computer-readable medium containing instructions stored thereon which, when executed by a processor of a radio dot (RD) element configured to operate in an access system, facilitate access with respect to information in Internet Protocol (IP) version 6 (IPv6) over Low Power Wireless Personal Area Network (6LoWPAN) format, the computer-readable medium comprising:

a code portion for obtaining and processing source data;

a code portion for determining if the source data is compliant with the 6LoWPAN format; and

a code portion, responsive to determining that the source data is compliant with the 6LoWPAN format, for repackaging the 6LoWPAN-compliant source data to be transmitted as upstream 6LoWPAN data (6LO data) signals modulated in a control signal band of a frequency band plan associated with an Ethernet cable link between the RD element and a Radio Unit (RU) element coupled thereto and disposed in the access system and providing the upstream 6LO data signals to a cable front-end (FE) block interfacing with the Ethernet cable link, wherein the control signal band is separate from uplink and downlink frequency bands of the frequency band plan comprising two or more intermediate (IF) bands associated with the Ethernet cable link, the uplink and downlink frequency bands respectively for transmitting and receiving the radio communications data signals.

27. The non-transitory computer-readable medium as recited in claim 26, further comprising:

a code portion, responsive to determining that the source data is not 6LoWPAN-compliant, for effectuating packaging of the non-compliant source data as 6LO data packets; and

a code portion for repackaging the 6LO data packets to be transmitted as the upstream 6LO data signals modulated in the control signal band of the frequency band plan associated with an Ethernet cable link between the RD and RU elements.

28. The non-transitory computer-readable medium as recited in claim 26, wherein the source data is obtained from a sensor component comprising at least one or more of temperature sensors, moisture sensors, light sensors, pressure sensors, motion sensors, biological sensors, chemical sensors, and/or environmental quality sensors.

29. The non-transitory computer-readable medium as recited in claim 26, wherein the source data is obtained via a 6LoWPAN access point (AP) configured to facilitate transmission and reception of 6LO data packets with respect to one or more 6LoWPAN-compliant devices.

30. The non-transitory computer-readable medium as recited in claim 26, further comprising instructions for repackaging the upstream 6LO data signals as a Common Public Radio Interface (CPRI) control channel message at the RU element.