Selectively combining uplink signals in distributed antenna systems
First Claim
1. A method comprising:
- receiving baseband uplink transmissions from remote units of a distributed antenna system via a first channel and a second channel;
generating a first combined uplink signal by combining a first portion of the baseband uplink transmissions received from a first subset of the remote units via the first channel, wherein the first portion of the baseband uplink transmissions is determined to include data for transmission to a base station;
generating a second combined uplink signal by combining a second portion of the baseband uplink transmissions received from a second subset of the remote units via the second channel, wherein generating the second combined uplink signal comprises attenuating or excluding a third portion of the baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that is determined to lack data for transmission to the base station; and
transmitting the first combined uplink signal and the second combined uplink signal to the base station.
8 Assignments
0 Petitions
Accused Products
Abstract
Certain aspects involve selectively combining uplink transmissions in a distributed antenna system (“DAS”). For example, a unit of the DAS can receive baseband uplink transmissions from remote units of the DAS via a first channel and a second channel. The unit can generate a first combined uplink signal by combining baseband uplink transmissions received from a first subset of the remote units via the first channel that include data for transmission to a base station. The unit can generate a second combined uplink signal that includes baseband uplink transmissions received from a second subset of the remote units via the second channel and excludes or attenuates baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that lack data for transmission to the base station are excluded or attenuated. The unit can transmit the combined uplink signals to the base station.
235 Citations
20 Claims
-
1. A method comprising:
-
receiving baseband uplink transmissions from remote units of a distributed antenna system via a first channel and a second channel; generating a first combined uplink signal by combining a first portion of the baseband uplink transmissions received from a first subset of the remote units via the first channel, wherein the first portion of the baseband uplink transmissions is determined to include data for transmission to a base station; generating a second combined uplink signal by combining a second portion of the baseband uplink transmissions received from a second subset of the remote units via the second channel, wherein generating the second combined uplink signal comprises attenuating or excluding a third portion of the baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that is determined to lack data for transmission to the base station; and transmitting the first combined uplink signal and the second combined uplink signal to the base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A unit of a distributed antenna system, the unit comprising:
-
a processing device configured for; receiving baseband uplink transmissions from remote units of the distributed antenna system via a first channel and a second channel, determining that a first portion of the baseband uplink transmissions received from a first subset of the remote units via the first channel includes data for transmission to a base station, determining that a second portion of the baseband uplink transmissions received from a second subset of the remote units via the second channel includes data for transmission to the base station, and determining that a third portion of the baseband uplink transmissions received from the first subset of the remote units lacks data for transmission to the base station; a combiner module included in or communicatively coupled to the processing device, the combiner module configured for; generating a first combined uplink signal by combining the first portion of the baseband uplink transmissions, and generating a second combined uplink signal by combining the second portion of the baseband uplink transmissions, wherein generating the second combined uplink signal comprises attenuating or excluding the third portion of the baseband uplink transmissions; and a transmitter configured for transmitting the first combined uplink signal and the second combined uplink signal to the base station. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. A distributed antenna system comprising:
-
remote units configured for receiving uplink transmissions via an RF band including a first RF channel corresponding to a first channel and a second RF channel corresponding to a second channel; extracting baseband uplink transmissions for the first channel from the received uplink transmissions in the first RF channel and extracting baseband uplink transmissions for the second channel from the received uplink transmissions in the second RF channel; and transmitting the baseband uplink transmissions to a unit; and the unit communicatively coupled to the remote units and configured for; generating a first combined uplink signal by combining a first portion of the baseband uplink transmissions received from a first subset of the remote units via the first channel, wherein the first portion of the baseband uplink transmissions is determined to include data for transmission to a base station, generating a second combined uplink signal by combining a second portion of the baseband uplink transmissions received from a second subset of the remote units via the second channel, wherein generating the second combined uplink signal comprises attenuating or excluding a third portion of the baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that are determined to lack data for transmission to the base station, and transmitting the first combined uplink signal and the second combined uplink signal to the base station.
-
Specification