Source: https://patents.google.com/patent/US20150078258A1/en
Timestamp: 2019-12-14 04:06:48
Document Index: 800697716

Matched Legal Cases: ['ART 212', 'ARTs 212', 'ART 212', 'ART 212', 'ART 212', 'ART 212', 'ART 212']

US20150078258A1 - Evolved distributed antenna system - Google Patents
US20150078258A1
US20150078258A1 US14/554,531 US201414554531A US2015078258A1 US 20150078258 A1 US20150078258 A1 US 20150078258A1 US 201414554531 A US201414554531 A US 201414554531A US 2015078258 A1 US2015078258 A1 US 2015078258A1
US14/554,531
US9800298B2 (en
2012-06-29 Priority to US13/538,170 priority patent/US8929288B2/en
2014-11-26 Application filed by ADC Telecommunications Inc filed Critical ADC Telecommunications Inc
2014-11-26 Priority to US14/554,531 priority patent/US9800298B2/en
2014-11-26 Assigned to ADC TELECOMMUNICATIONS, INC. reassignment ADC TELECOMMUNICATIONS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FISCHER, LARRY G., STEWART, KENNETH ANDERSON
2015-03-19 Publication of US20150078258A1 publication Critical patent/US20150078258A1/en
2017-10-24 Publication of US9800298B2 publication Critical patent/US9800298B2/en
One embodiment is directed to a method for generating and distributing wireless RF signals at a host unit in a distributed antenna system. At least a first subset of IP data from an IP network entity is routed to a first base transceiver station within the host unit, and at least a second subset of the IP data is routed to a second base transceiver station within the host unit. The IP data is baseband processed by the first and second base transceiver stations to generate a first digital representation of a first RF signal and a second digital representation of a second RF signal. The first digital representation of the first RF signal is routed to a first subset of the plurality of remote units and the second digital representation of the second RF signal is routed to a second subset of the plurality of remote units.
This application is a divisional of application Ser. No. 13/538,170 filed on Jun. 29, 2012, entitled “EVOLVED DISTRIBUTED ANTENNA SYSTEM” (currently allowed), which claims the benefit of U.S. Provisional Patent Application Ser. No. 61/502,556, filed on Jun. 29, 2011, both of which are hereby incorporated herein by reference.
The IP network 102 can comprise carrier networks for one or more carriers of wireless services, and the DAS 100 can be, for example, coupled to multiple wireless service providers' (i.e., carriers′) networks within the IP network 102. The IP network 102 communicatively couples the DAS 100 to other communication systems such as other base stations 105, the public switched telephone network (PSTN) 108, the Internet 110, the IP multimedia system (IPM) 112, and/or other networks.
Each DART 212 is configured to operate on a single RF channel, and different DARTs 212 on different RF channel modules 304 installed in the host unit 104 can be configured to operate on different channels (frequency bands), use different communication protocols, and/or correspond to different service providers′. Each DART 212, however, converts to and from a baseband protocol (for example, the common baseband protocol) for the BBIF 206. As an example a first DART 212 can be configured to operate on 850 MHz cellular transmissions, which a second DART 212 can be configured to operate on 1900 MHz PCS signals. Some of the other options for a DART 212 include Nextel 800 band, Nextel 900 band, PCS full band, PCS half band, BRS, WiMax, LTE, and the European GSM 900, DCS 1800, and UMTS 2100.
In some embodiments, DART 212 is implemented with a DART module commercially available from TE Connectivity as part of the FlexWave™ line of products. The DART module is also described in U.S. patent application Ser. No. 11/627,251, assigned to ADC Telecommunications, Inc., published in U.S. Patent Application Publication No. 2008/0181282, and incorporated herein by reference.
1. A method for generating and distributing wireless RF signals at a host unit in a distributed antenna system comprising the host unit which is communicatively coupled to a plurality of remote units, the method comprising:
receiving Internet Protocol (IP) data at the host unit from an IP network entity, wherein the IP data corresponds to a plurality of radio frequency (RF) signals;
routing at least a first subset of the IP data to a first base transceiver station within the host unit;
routing at least a second subset of the IP data to a second base transceiver station within the host unit;
at the host unit, baseband processing the at least a first subset of the IP data at the first base transceiver station to generate a first digital representation of a first RF signal for transmission from a remote unit to a wireless device, wherein the first digital representation of the first RF signal is at baseband;
at the host unit, baseband processing the at least a second subset of the IP data at the second base transceiver station to generate a second digital representation of a second RF signal for transmission from a remote unit to a wireless device, wherein the second digital representation of the second RF signal is at baseband; and
at the host unit, routing, as one or more downlink serial data streams, the first digital representation of the first RF signal to a first subset of the plurality of remote units and the second digital representation of the second RF signal to a second subset of the plurality of remote units.
at the host unit, receiving one or more uplink serial data streams from the plurality of remote units;
extracting a third digital representation of a third RF signal from the one or more uplink serial data streams, wherein the third RF signal is an uplink counterpart to the first RF signal;
extracting a fourth digital representation of a fourth RF signal from the one or more uplink serial data streams, wherein the fourth RF signal is an uplink counterpart to the second RF signal;
routing the third digital representation of the third RF signal to the first base transceiver station;
routing the fourth digital representation of the fourth RF signal to the second base transceiver station;
baseband processing the third digital representation of the third RF signal with the first base transceiver station to generate IP data corresponding to the third RF signal;
baseband processing the fourth digital representation of the fourth RF signal with the second base transceiver station to generate IP data corresponding to the fourth RF signal; and
sending the IP data corresponding to the third RF signal and the IP data corresponding to the fourth RF signal from the host unit to the IP network entity.
3. The method of claim 2, wherein the first, second, third, and fourth digital representations of a respective RF signal comprise in-phase digital baseband data and quadrature digital baseband data.
4. The method of claim 2, wherein the IP network entity is an IP access gateway that controls access to a carrier network.
5. The method of claim 2, wherein the first, second, third, and fourth digital representations of a respective RF signal conform to a common baseband communication protocol.
6. The method of claim 5, wherein the common baseband communication protocol is the Open Base Station Architecture Initiative (OBSAI) or the common public radio interface (CPRI).
receiving at the host unit from an external base station, a fifth RF signal;
generating a fifth digital representation of the fifth RF signal with a digital-to-analog RF transceiver (DART) module in the host unit;
routing the fifth digital representation of the fifth RF signal to a third subset of the plurality of remote units;
receiving at the host unit from the plurality of remote units, a sixth digital representation of a sixth RF signal, wherein the sixth RF signal is an uplink counterpart to the fifth RF signal;
routing the sixth digital representation of the sixth RF signal to the DART module;
generating the sixth RF signal from the sixth digital representation of the sixth RF signal with the DART module; and
sending the sixth RF signal from the host unit to the external base station.
receiving at the host unit from an external base station, a seventh digital representation of a seventh RF signal;
routing the seventh digital representation of the seventh RF signal to a fourth subset of the plurality of remote units;
receiving at the host unit from the plurality of remote units, an eighth digital representation of the eighth RF signal, wherein the eighth RF signal is an uplink counterpart to the seventh RF signal;
sending the eighth RF signal from the host unit to the external base station.
9. A method for generating and distributing wireless RF signals in a distributed antenna system having a host unit communicatively coupled to a plurality of remote units, the method comprising:
receiving downlink Internet Protocol (IP) data at the host unit from an IP network entity, wherein the downlink IP data corresponds to a plurality of radio frequency (RF) signals;
providing the downlink IP data to a plurality of base transceiver stations within the host unit;
each of the plurality of base transceiver stations generating a respective downlink digital representation of a respective RF signal;
routing each of the downlink digital representations of a respective RF signal to respective subset of the plurality of remote units as one or more downlink serial data streams;
receiving at the host unit from the plurality of remote units, one or more uplink serial data streams including a plurality of uplink digital representations of respective RF signals;
routing each of the plurality of uplink digital representations of respective RF signals to a respective base transceiver station of the plurality of base transceiver stations;
generating uplink IP data from the plurality of uplink digital representations of respective RF signals with the plurality of base transceiver stations; and
sending the uplink IP data to the IP network entity.
10. The method of claim 9, wherein the uplink and downlink digital representations of respective RF signals comprise in-phase digital baseband data and quadrature digital baseband data.
11. The method of claim 9, wherein the IP network entity is an IP access gateway that controls access to a carrier network.
12. The method of claim 9, wherein the uplink and downlink digital representations of respective RF signals conform to a common baseband communication protocol.
13. The method of claim 12, wherein the common baseband communication protocol is the Open Base Station Architecture Initiative (OBSAI) or the common public radio interface (CPRI).
receiving at the host unit from an external base station, a first RF signal;
generating a first digital representation of the first RF signal with a digital-to-analog RF transceiver (DART) module in the host unit;
routing the first digital representation of the first RF signal to a subset of the plurality of remote units;
receiving at the host unit from the plurality of remote units, a second digital representation of a second RF signal, wherein the second RF signal is an uplink counterpart to the second RF signal;
routing the second digital representation of the second RF signal to the DART module;
generating the second RF signal from the second digital representation of the second RF signal with the DART module; and
sending the second RF signal from the host unit to the external base station.
receiving at the host unit from an external base station, a third digital representation of a third RF signal;
routing the third digital representation of the third RF signal to a second subset of the plurality of remote units;
receiving at the host unit from the plurality of remote units, a fourth digital representation of the fourth RF signal, wherein the fourth RF signal is an uplink counterpart to the third RF signal;
sending the fourth RF signal from the host unit to the external base station.
receiving downlink Internet Protocol (IP) data at the host unit from an IP network entity, wherein the downlink IP data corresponds to a first radio frequency (RF) signal;
receiving a second RF signal at the host unit from an external base station;
at the host unit, baseband processing the IP data at a first base transceiver station to generate a first digital representation of the first RF signal for transmission from a remote unit to a wireless device, wherein the first digital representation of the first RF signal is at baseband;
at the host unit, generating a second digital representation of the second RF signal with a digital-to-analog RF transceiver (DART) module in the host unit; and
routing the fourth digital representation of the fourth RF signal to the DART module;
generating the fourth RF signal from the fourth digital representation of the fourth RF signal with the DART module; and
sending the fourth RF signal from the host unit to the external base station;
sending the IP data corresponding to the fourth RF signal to the IP network entity.
18. The method of claim 17, wherein the first, second, third, and fourth digital representations of a respective RF signal comprise in-phase digital baseband data and quadrature digital baseband data.
19. The method of claim 17, wherein the IP network entity is an IP access gateway that controls access to a carrier network.
20. The method of claim 17, wherein the first, second, third, and fourth digital representations of a respective RF signal conform one of the Open Base Station Architecture Initiative (OBSAI) or the common public radio interface (CPRI).
US14/554,531 2011-06-29 2014-11-26 Evolved distributed antenna system Active 2032-09-10 US9800298B2 (en)
US13/538,170 US8929288B2 (en) 2011-06-29 2012-06-29 Evolved distributed antenna system
US14/554,531 US9800298B2 (en) 2011-06-29 2014-11-26 Evolved distributed antenna system
US15/791,237 US10256871B2 (en) 2011-06-29 2017-10-23 Evolved distributed antenna system
US13/538,170 Division US8929288B2 (en) 2011-06-29 2012-06-29 Evolved distributed antenna system
US15/791,237 Continuation US10256871B2 (en) 2011-06-29 2017-10-23 Evolved distributed antenna system
US20150078258A1 true US20150078258A1 (en) 2015-03-19
US9800298B2 US9800298B2 (en) 2017-10-24
US13/538,170 Active 2033-01-25 US8929288B2 (en) 2011-06-29 2012-06-29 Evolved distributed antenna system
US14/554,531 Active 2032-09-10 US9800298B2 (en) 2011-06-29 2014-11-26 Evolved distributed antenna system
US15/791,237 Active US10256871B2 (en) 2011-06-29 2017-10-23 Evolved distributed antenna system
CN (1) CN103688500B (en)
BR112019010882A2 (en) 2016-11-29 2019-10-01 Maven Wireless Sweden Ab digital data transport in a distributed antenna system
2012-06-29 CN CN201280032240.9A patent/CN103688500B/en active IP Right Grant
CN103688500B (en) 2019-08-23
WO2013003717A2 (en) 2013-01-03
Zhou et al. 2003 Distributed wireless communication system: a new architecture for future public wireless access
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:STEWART, KENNETH ANDERSON;FISCHER, LARRY G.;SIGNING DATES FROM 20120814 TO 20120821;REEL/FRAME:034270/0061