Autonomous Determination of Discontinuous Reception Opportunities by Ethernet-Based Wireless

The radio unit in O-RAN systems autonomously determines discontinuous reception states based on control plane data, addressing the issue of packet loss and preventing component damage and excessive power consumption.

JP7697077B2Active Publication Date: 2025-06-23ANALOG DEVICES INT UNLTD CO
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Patent Information

Application Number
JP2024018746
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-02-10
Filing Date
2024-02-09
Publication Date
2025-06-23
Estimated Expiration
2044-02-09

AI Technical Summary

Technical Problem

In Ethernet-based Open Radio Access Networks (O-RAN), the lack of control plane data due to packet loss in packet-based networks can lead to active receive paths remaining on, potentially causing damage to sensitive components and increased power consumption.

Method used

A radio unit with an input unit to receive packets, one or more receiving paths to receive radio frequency signals, and an uplink allocation map component to determine a discontinuous reception state based on control plane data, allowing the radio unit to autonomously manage the discontinuous reception state and prevent damage to components.

Benefits of technology

The solution effectively manages discontinuous reception states in O-RAN systems, preventing component damage and reducing power consumption by ensuring that receive paths are turned off when control plane data is absent.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a system and a method for autonomously determining discontinuous reception opportunity by an Ethernet-based radio.SOLUTION: A radio unit for radio frequency communication includes: an input unit configured to receive a plurality of packets, at least one of the packets including control plane data; and one or more reception paths configured to receive one or more radio frequency signals from one or more antennas. The radio unit further includes an uplink allocation map component configured to receive the control plane data and to determine a discontinuous receive state for each of the one or more receive paths based on the control plane data.SELECTED DRAWING: Figure 5
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Description

Technical Field

[0001] [Cross - Reference to Related Applications] In the application data sheet filed together with this application, every application in which a foreign or domestic priority claim is identified is incorporated herein by reference in accordance with 37 CFR 1.57.

[0002] This application claims the benefit of priority of U.S. Provisional Application No. 63 / 484,344, filed on February 10, 2023, the entire disclosure of which is incorporated herein by reference in its entirety.

Background Art

[0003] The disclosed technology generally relates to wireless, and more specifically to discontinuous received signals used by Ethernet - based wireless.

[0004] [Description of Related Technologies] Open Radio Access Network (O - RAN) is a communication standard that can adopt Ethernet for communication between an O - RAN Radio Unit (O - RU) and an O - RAN Distributed Unit (O - DU).

Summary of the Invention

[0005] [Summary of Some Aspects of the Present Disclosure] In one aspect, an input unit configured to receive a plurality of packets, wherein at least one of the packets includes control plane data; one or more receiving paths configured to receive one or more radio frequency signals from one or more antennas; and an uplink allocation map component configured to receive the control plane data and determine a discontinuous reception state for each of the one or more receiving paths based on the control plane data. A radio unit for radio frequency communication comprising the above components.

[0006] In some embodiments, each of the one or more receive paths is further configured to turn on and off based on a corresponding discontinuous reception state.

[0007] In some embodiments, the radio unit further comprises a data jitter buffer configured to receive control plane data from the input unit and provide the control plane data to each of the one or more receive paths and the uplink allocation map component.

[0008] In some embodiments, the data jitter buffer is further configured to provide control plane data at a substantially constant rate.

[0009] In some embodiments, the uplink allocation map component sets the discontinuous reception state to one of a first discontinuous reception state in which the corresponding receive path is turned off in response to the absence of control plane data, or a second discontinuous reception state in which the corresponding receive path is turned on in response to the control plane data indicating the presence of a radio frequency signal to be received.

[0010] In some embodiments, each of the one or more receive paths comprises a low noise amplifier coupled to a corresponding one of the one or more antennas, and the uplink allocation map component is further configured to provide a discontinuous reception state to the one or more low noise amplifiers.

[0011] In some embodiments, the input unit is further configured to receive packets from the distributed unit via Ethernet.

[0012] In another aspect, a method for determining a discontinuous reception state in a radio unit, the method comprising: receiving, at an input unit of the radio unit, a plurality of packets, at least one of the packets including control plane data; receiving, via one or more reception paths, one or more radio frequency signals from one or more antennas; and determining, based on the control plane data, a discontinuous reception state for each of the one or more reception paths.

[0013] In some embodiments, the method further comprises turning each of the one or more reception paths on and off based on the corresponding discontinuous reception state.

[0014] In some embodiments, the method further comprises receiving, at a data jitter buffer, control plane data from the input unit, and providing, from the data jitter buffer, the control plane data to each of the one or more reception paths.

[0015] In some embodiments, the method further comprises providing, from the data jitter buffer, the control plane data at a substantially constant rate.

[0016] In some embodiments, the method further comprises setting the discontinuous reception state to one of a first discontinuous reception state in which a corresponding reception path is turned off in response to the absence of control plane data, and a second discontinuous reception state in which a corresponding reception path is turned on in response to the control plane data indicating that there is a radio frequency signal being received.

[0017] In some embodiments, the method further comprises providing the discontinuous reception state to one or more low noise amplifiers coupled to the one or more antennas.

[0018] In some embodiments, receiving the plurality of packets includes receiving the packets from a distributed unit via Ethernet.

[0019] Yet another aspect is a distributed unit configured to output a plurality of packets, wherein at least one of the packets includes control plane data, the distributed unit, one or more antennas configured to receive radio frequency (RF) signals, and a radio unit configured to receive packets from the distributed unit and receive RF signals from the one or more antennas based on the control plane data. The radio unit includes an input unit configured to receive packets from the distributed unit, one or more receive paths configured to receive RF signals from the one or more antennas, and an uplink allocation map component configured to receive the control plane data and determine a discontinuous reception state for each of the one or more receive paths based on the control plane data. This is an Open Radio Access Network (O-RAN).

[0020] In some embodiments, each of the one or more receive paths is further configured to be turned on and off based on the corresponding discontinuous reception state.

[0021] In some embodiments, the radio unit further includes a data jitter buffer configured to receive control plane data from the input unit and provide the control plane data to each of the one or more receive paths and the uplink allocation map component.

[0022] In some embodiments, the data jitter buffer is further configured to provide the control plane data at a substantially constant rate.

[0023] In some embodiments, the uplink allocation map component sets the discontinuous reception state to one of a first discontinuous reception state in which the corresponding receive path is turned off in response to the absence of the control plane data, or a second discontinuous reception state in which the corresponding receive path is turned on in response to the control plane data indicating that there is a radio frequency signal to be received.

[0024] In some embodiments, each of the one or more receive paths comprises a low-noise amplifier coupled to a corresponding one of the one or more antennas, and the uplink allocation map component is further configured to provide a discontinuous reception state to the one or more low-noise amplifiers.

Brief Description of the Drawings

[0025] These drawings and the related description herein are provided to illustrate specific embodiments of the present invention and are not intended to be limiting.

Figure 1A

Figure 1B

Figure 2

Figure 3

Figure 4A

Figure 4B

Figure 5

Modes for Carrying Out the Invention

[0026] Various aspects of the novel systems, apparatuses, and methods are described more fully hereinafter with reference to the accompanying drawings. However, aspects of the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout the present disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will understand that the scope of the present disclosure is intended to cover any aspect of the novel systems, apparatuses, and methods disclosed herein, whether implemented independently of or combined with any other aspect. For example, any number of the aspects described herein may be used to implement an apparatus or to carry out a method. In addition, the scope is intended to cover such apparatus or methods implemented using other structures, functionality, or a combination of structures and functionality in addition to or other than those described herein. It should be understood that any aspect disclosed herein may be embodied by one or more elements of the claims.

[0027] Specific aspects are described herein, but many variations and modifications of these aspects are within the scope of the present disclosure. Some benefits and advantages of the preferred aspects are mentioned, but the scope of the present disclosure is not intended to be limited to any specific benefit, use, or purpose. Rather, aspects of the present disclosure are intended to be widely applicable to networks including different wired and wireless technologies, system configurations, optical networks, hard disks, and transmission protocols, some of which are illustrated by way of example in the following description of the figures and preferred aspects. The detailed description and drawings are illustrative only and not restrictive, and the scope of the present disclosure is defined by the appended claims and their equivalents.

[0028] In this description, reference is made to the drawings, in which like reference numerals can indicate identical or functionally similar elements. It should be understood that the elements illustrated in the figures are not necessarily drawn to scale. Also, it should be understood that a particular embodiment can include more elements and / or a subset of the elements shown in the drawings than are illustrated in the drawings. Further, some embodiments can incorporate any suitable combination of features from two or more of the drawings.

[0029] Overview of a Radio Access Network (RAN) FIG. 1A illustrates an exemplary wireless communication system 100. The wireless communication system 100 includes one or more wireless devices 102, a radio access network (RAN) 104, and a core network (CN) 106. As used herein, RAN 104 generally refers to a network used as part of the wireless communication system 100. RAN 104 can be used to connect one or more wireless devices 102, such as cellular phones, to the CN 106 of the communication system 100.

[0030] FIG. 1B illustrates an example of RAN 104. In some embodiments, RAN 104 can include a baseband unit (BBU) 112 connected to one or more remote radio units (RRUs) 110 positioned near one or more antennas 108. BBU 112 can be configured to communicate with CN 106, while antenna 108 can be configured to communicate with wireless device 102.

[0031] Figure 2 illustrates an example of an O-RAN 200 that can be used as part of a telecommunications system. As used herein, O-RAN 200 generally refers to a type of RAN that can employ Ethernet, among other things, for communication between the components of the O-RAN 200. In some embodiments, the BBU from the RAN can be replaced with two components within the O-RAN 200, a distributed unit (DU, also referred to as O-DU) 202 and a central unit (CU, also referred to as O-CU) 204. In some embodiments, the distributed unit 202 and the central unit 204 can be connected and communicate via Ethernet.

[0032] The O-RAN 200 can communicate separate control plane (CP) and user plane (UP) information, transmitted or received using radio frequency (RF) signals, with a radio unit (RU, also referred to as O-RU) 110. The control plane can be used to communicate the presence or absence of downlink data scheduling. The user plane can provide the data to be transmitted. As described herein, the radio unit 110 can include an RF circuit configured to amplify and / or convert user plane data into an RF signal transmitted by one or more antennas 108. In some embodiments, the RF circuit can include, for example, a fast Fourier transform (FFT) block, a digital-to-analog converter (DAC), a mixer, a variable gain amplifier, a phase adjuster, a power amplifier, and the like. The transmission path can consume a relatively large amount of power to amplify the RF signal to a power sufficient for the distance used for wireless RF communication, and thus, the power consumption of the O-RAN 200 can be reduced by turning off the transmission path when the transmission path is not currently being used for RF communication.

[0033] The use of Ethernet within O-RAN200 can pose certain challenges. For example, since Ethernet is a packet-based communication standard, individual packets can be lost. This can lead to undesirable functionality in the system if components such as the radio unit 110 do not receive the expected lost data packets.

[0034] O-RAN200 can also employ discontinuous transmission (DTX) to reduce power consumption when a radio frequency signal is not being transmitted by a given antenna 108 or channel of the radio unit 110. O-RAN200 can also employ discontinuous reception (DRX) to protect sensitive components when a radio frequency signal is not being received by a given antenna 108 or channel of the radio unit 110.

[0035] Discontinuous Reception Signaling in O-RAN Figure 3 provides an illustration of the communication between the distributed unit 202 and the radio unit 110 when receiving a radio frequency signal using the O-RAN200 system. The distributed unit 202 can provide a discontinuous reception signal, i.e., a signal that can be used by the radio unit 110 to turn off certain components of the RF circuitry of the corresponding channel or transmission path of the radio unit 110 when there is no data being received wirelessly (e.g., data within the user plane).

[0036] The state of the discontinuous reception signal can be directly determined or derived from a control information such as a predetermined schedule (e.g., time division duplexing or TDD transmission / reception schedule) or real-time control information. In the context of O-RAN, an Ethernet-based network can provide control plane and user plane information to the radio unit 110, for example, via the distributed unit 202. The control plane can be used to signal or indicate the absence or presence of uplink data scheduling to be followed within the user plane. The user plane can provide the actual data received.

[0037] However, relying on a control or a predetermined schedule to drive discontinuous reception signaling is not more accurate, and in the absence of control information instructing the receiver circuit to turn off, the receiver circuit may remain active, which may pose a risk of damaging the devices or components within the reception path. For example, when using direct real-time control for radio units 110 placed in proximity, a packet instructing the receiver circuit of a specific radio unit 110 to turn off may be lost, and the receiver circuit may erroneously remain on while a nearby high-power transmitter from another radio unit 110 is transmitting.

[0038] Accordingly, the lack of control information is particularly relevant in packet-based networks such as Ethernet where control packets can be dropped. This can result in the radio unit 110 being instructed to maintain an active receive path due to the loss of packets containing control plane information that includes an instruction to turn off the receive path. The receive path may use relatively sensitive components (e.g., a low noise amplifier (LNA)) designed to receive relatively weak signals at a low signal-to-noise ratio. If the receive path remains active while a transmission path within the same radio unit 110 or another radio unit 110 is initiating the transmission of a radio frequency signal, the receive path may receive signals with a much greater intensity than it is designed to process, which can result in damage to components on the receive path and / or receiver desense.

[0039] Figure 3 illustrates one exemplary situation where, due to packet loss, one or more receive paths may remain on when a packet containing control plane data is lost. In particular, the distributed unit 202 can provide a control plane message 302 to the radio unit 110 to instruct one or more receive paths of the radio unit 110 to turn off. In certain situations, as illustrated in Figure 3, the distributed unit 202 can be lost. In the situation illustrated in Figure 3, since the radio unit 110 did not receive the control plane message 302, the radio unit 110 can maintain one or more receive paths in a receiving state, which can make the receive paths vulnerable to damage as described above.

[0040] There are different techniques for deriving discontinuous reception control. In one embodiment, the O-RAN standard provides an optional method of the standard that relies on control information for an explicit notification of the discontinuous reception period. However, this is not autonomous and can be vulnerable to packet interruptions on the fronthaul network to which the radio unit 110 is linked.

[0041] Aspects of the present disclosure relate to systems and techniques for determining or deriving a discontinuous reception state directly from the absence of control plane data. By deriving the discontinuous reception state directly from the absence of control plane data, in situations such as congestion in an Ethernet-based network that may cause control plane data outages, the radio unit 110 can assert the discontinuous reception state to prevent damage or inoperability to one or more reception paths. On the other hand, in embodiments where the discontinuous reception state is derived from a predetermined schedule or control plane information, the radio unit 110 can maintain an active reception state even when control plane data is not received by the radio unit 110 due to packet loss.

[0042] FIG. 4A illustrates one exemplary embodiment of a radio unit 110 according to aspects of the present disclosure. FIG. 4B illustrates one exemplary embodiment of the connections between the components of the radio unit 110 according to aspects of the present disclosure. Referring to FIGS. 4A and 4B, the radio unit 110 includes a radio head 402 (also referred to as a radio frequency integrated circuit (RFIC)). The radio head 402 includes an input / output section 404 (e.g., an Ethernet port), a data jitter buffer 406, a plurality of reception paths 408, an uplink assignment map component 410, one or more discontinuous reception control outputs 412, and one or more RF inputs 414. The input / output section 404 is configured to receive a packet 304 that includes control plane data 418. The control plane data 418 can include uplink assignment data.

[0043] The data jitter buffer 406 is configured to buffer the control plane data 418 to prevent jitter introduced, for example, by Ethernet communication from affecting components downstream from the data jitter buffer 406. The data jitter buffer 406 can provide the buffered control plane data 418 to the receive path 408 and the uplink assignment map component 410 at a rate expected by the receive path 408. In some embodiments, the data jitter buffer 406 can provide the control plane data 418 to the receive path 408 and the uplink assignment map component 410 at a substantially constant rate.

[0044] Each of the receive paths 408 is configured to receive the control plane data 418 from the data jitter buffer 406 and amplify / convert an RF signal received from one or more antennas 108 based on the control plane data. In some embodiments, each of the receive paths 408 can include a low noise amplifier 420, a filter, a mixer, an analog-to-digital converter (ADC), an FFT block, and the like. These components can be configured to convert the received RF signal into IQ samples that can be transmitted via Ethernet to a distributed unit. In some embodiments, each of the receive paths 408 can have a constant latency between receiving an RF signal from an antenna and outputting IQ samples to the input / output section 404. In some embodiments, each of the receive paths 408 can be coupled to a corresponding one of the antennas 108 via a physical antenna path.

[0045] The uplink allocation map component 410 is configured to determine or derive a discontinuous reception state in response to determining or identifying the absence of control plane data 418 received from the data jitter buffer 406. For example, the uplink allocation map component 410 can derive a first discontinuous reception state in which the corresponding reception path 408 is turned off under the absence of the control plane including data. Similarly, the uplink allocation map component 410 can derive a second discontinuous reception state in which the corresponding reception path 408 is turned on in response to the control plane data 418 including uplink allocation data indicating that there is a received RF signal. The uplink allocation map component 410 can also derive the first discontinuous reception state in response to the control plane data 418 including uplink allocation data indicating that there is no received RF signal. Next, the uplink allocation map component 410 can generate a plurality of discontinuous reception control signals indicating the derived discontinuous reception state. Each of the discontinuous reception signals can correspond to one of the RF inputs providing an RF signal to the reception path 408. The uplink allocation map component 410 can also provide a discontinuous reception control signal to the low noise amplifier 420 in each of the corresponding reception paths 408 so that the reception path 408 can be turned off when there is no received RF signal and under the absence of the control plane data 418.

[0046] According to an embodiment, the uplink allocation map component 410 can be implemented in hardware (e.g., using discrete circuitry) and / or software operating on a processor or other circuitry (e.g., a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device).

[0047] By extracting the start and end times of uplink RF allocation from the control plane data, the uplink allocation map component 410 can determine or derive a discontinuous reception state independently for each physical antenna path / reception path 408. The uplink allocation map component 410 can assert a discontinuous reception state (e.g., a first discontinuous reception state) during any period in which no active allocation is registered in the control plane data. The radio unit 402 can output a discontinuous reception state control signal for each antenna path via one or more discontinuous reception control outputs 412 with a delay time that can be set to match miscellaneous RF circuit requirements.

[0048] FIG. 5 illustrates a method 500 for determining or deriving a discontinuous reception state according to an aspect of the present disclosure. One or more blocks of method 500 may be implemented, for example, by a radio unit (e.g., radio unit 110 of FIG. 4) and / or an O-RAN (e.g., O-RAN 200 of FIG. 2).

[0049] In block 502, an input section of the radio unit can receive a plurality of packets. At least one of the packets can include control plane data. In some embodiments, the input section can include an Ethernet port configured to receive packets.

[0050] In block 504, one or more reception paths can receive one or more radio frequency signals from one or more antennas. The reception path can include one or more low noise amplifiers configured to amplify the RF received signal to a power level sufficient for communication via Ethernet to a distributed unit. In block 506, the uplink allocation map component can receive the control plane data and, based on the control plane data, determine a discontinuous reception state for each of the one or more reception paths. In some embodiments, each of the one or more reception paths can be turned on and off based on the corresponding discontinuous reception state determined by the uplink allocation map component.

[0051] It will be appreciated that in the above, any one feature of any embodiment can be combined with or replaced by any other one feature of any other embodiment.

[0052] Aspects of the present disclosure can be implemented in a variety of electronic devices. Examples of electronic devices include, but are not limited to, consumer electronics products, parts of consumer electronics products, electronic test equipment, cellular communication infrastructure such as base stations, etc. Examples of electronic devices include, but are not limited to, mobile phones such as smartphones, wearable computing devices such as smartwatches or earpieces, telephones, televisions, computer monitors, computers, modems, handheld computers, laptop computers, tablet computers, personal digital assistants (PDAs), microwave ovens, refrigerators, vehicle electronic systems such as automotive electronic systems, stereo systems, DVD players, CD players, digital music players such as MP3 players, radios, camcorders, cameras such as digital cameras, portable memory chips, washing machines, dryers, washer / dryers, peripheral devices, clocks, etc. Further, the electronic device can include unfinished products.

[0053] Unless the context clearly requires otherwise, throughout the specification and the claims, the words "comprise," "comprising," "include," "including," and similar words are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the sense of "including, but not limited to." The word "coupled," as generally used herein, refers to two or more elements that can be directly connected or connected through one or more intermediate elements. Similarly, the word "connected," as generally used herein, refers to two or more elements that can be directly connected or connected through one or more intermediate elements. Additionally, the words "herein," "above," "below," and words of similar import refer to the entire specification, as opposed to any particular portion of the specification, when used herein. Where the context permits, the words in the above forms of the invention for carrying out the invention using singular or plural shall also include, respectively, plural or singular. The word "or" with respect to a list of two or more items includes any and all of the following interpretations of the word: any of the items in the list, all of the items in the list, and any combination of the items in the list.

[0054] Moreover, among other things, conditional language used herein, such as “can,” “could,” “might,” “may,” “e.g.,” “for example,” “such as,” and the like, unless specifically recited otherwise or otherwise understood within the context in which it is used, generally is intended to convey that a particular embodiment includes a particular feature, element, and / or state while other embodiments do not. Thus, such conditional language generally is not intended to imply that a feature, element, and / or state is required in any form for one or more embodiments or that these features, elements, and / or states are included in or implemented in any particular embodiment.

[0055] Certain embodiments have been described, but these embodiments are presented by way of example only and are not intended to limit the scope of the disclosure. Indeed, the novel apparatus, methods, and systems described herein may be embodied in a variety of other forms, and furthermore, various omissions, substitutions, and changes may be made in the form of the methods and systems described herein without departing from the spirit of the disclosure. For example, although the blocks are presented in a given arrangement, alternative embodiments may implement equivalent functionality with different components and / or circuit topologies, and some blocks may be deleted, moved, added, subdivided, combined, and / or modified. Each of these blocks may be implemented in a variety of different ways. Any suitable combination of the elements and acts of the various embodiments described above can provide further embodiments when combined. The various features and processes described above may be implemented independently of one another or combined in various ways. All possible combinations and subcombinations of the features of the disclosure are intended to be within the scope of the disclosure.

Claims

1. A radio unit for radio frequency communication, comprising: an input configured to receive a plurality of packets, at least one of the packets including control plane data; one or more receive paths configured to receive one or more radio frequency signals from one or more antennas; an uplink allocation map component configured to receive the control plane data and determine a discontinuous reception condition for each of the one or more reception paths based on the control plane data; the uplink allocation map component is further configured to set the discontinuous reception state to one of a first discontinuous reception state in which a corresponding receive path is turned off in response to an absence of the control plane data, or a second discontinuous reception state in which a corresponding receive path is turned on in response to the control plane data indicating that there is a received radio frequency signal.

2. The wireless unit of claim 1 , wherein each of the one or more receive paths is further configured to be turned on and off based on the corresponding discontinuous reception condition.

3. 2. The wireless unit of claim 1, further comprising a data jitter buffer configured to receive the control plane data from the input and provide the control plane data to each of the one or more receive paths and to the uplink allocation map component.

4. The wireless unit of claim 3 , wherein the data jitter buffer is further configured to provide the control plane data at a substantially constant rate.

5. each of the one or more receive paths comprises a low noise amplifier coupled to a corresponding one of the one or more antennas; 2. The wireless unit of claim 1, wherein the uplink allocation map component is further configured to provide the discontinuous reception conditions to the one or more low noise amplifiers.

6. 2. The wireless unit of claim 1, wherein the input is further configured to receive the packets from a distribution unit via Ethernet.

7. 1. A method for determining a discontinuous reception condition in a wireless unit, comprising: receiving a plurality of packets at an input of the wireless unit, at least one of the packets including control plane data; receiving one or more radio frequency signals from one or more antennas on one or more receive paths; determining a discontinuous reception condition for each of the one or more reception paths based on the control plane data; The discontinuous reception state is a first discontinuous reception state in which a corresponding receive path is turned off in response to an absence of the control plane data; and in response to the control plane data indicating that there is a radio frequency signal being received, setting a corresponding receive path to one of the second discontinuous receive states that are turned on; A method comprising:

8. The method of claim 7 , further comprising turning on and off each of the one or more receive paths based on the corresponding discontinuous reception condition.

9. receiving the control plane data from the input at a data jitter buffer; 8. The method of claim 7, further comprising: providing the control plane data from the data jitter buffer to each of the one or more receive paths.

10. 10. The method of claim 9, further comprising providing the control plane data from the data jitter buffer at a substantially constant rate.

11. The method of claim 7 , further comprising providing the discontinuous reception conditions to one or more low noise amplifiers coupled to the one or more antennas.

12. The method of claim 7 , wherein said receiving said plurality of packets comprises receiving said packets from a distribution unit over Ethernet.

13. An open radio access network (O-RAN), comprising: a distribution unit configured to output a plurality of packets, at least one of the packets including control plane data; one or more antennas configured to receive radio frequency (RF) signals; a radio unit configured to receive the packets from the distributed unit and to receive the RF signals from the one or more antennas based on the control plane data; The wireless unit: an input configured to receive the packet from the distribution unit; one or more receive paths configured to receive the RF signals from the one or more antennas; an uplink allocation map component configured to receive the control plane data and determine a discontinuous reception condition for each of the one or more reception paths based on the control plane data; the uplink allocation map component is further configured to set the discontinuous reception state to one of a first discontinuous reception state in which a corresponding receive path is turned off in response to an absence of the control plane data, or a second discontinuous reception state in which a corresponding receive path is turned on in response to the control plane data indicating that there is a received radio frequency signal. Open Radio Access Network (O-RAN).

14. The O-RAN of claim 13, wherein each of the one or more receive paths is further configured to be turned on and off based on the corresponding discontinuous reception condition.

15. The wireless unit:

14. The O-RAN of claim 13, further comprising a data jitter buffer configured to receive the control plane data from the input and provide the control plane data to each of the one or more receive paths and the uplink allocation map component.

16. The O-RAN of claim 15, wherein the data jitter buffer is further configured to provide the control plane data at a substantially constant rate.

17. each of the one or more receive paths comprises a low noise amplifier coupled to a corresponding one of the one or more antennas; The O-RAN of claim 13, wherein the uplink allocation map component is further configured to provide the discontinuous reception condition to the one or more low noise amplifiers.

Citation Information

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