Intra-band receiver circuit sharing
The switching functionality and optimized CC allocation using multiple receiver circuits address the challenge of receiving non-collocated CCs with varying characteristics, enhancing data throughput and reducing costs in wireless communication networks.
Patent Information
- Application Number
- PCT/CN2024/096388
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-12-04
AI Technical Summary
The challenge in wireless communication networks is the efficient reception of signals from non-collocated component carriers (CCs) with varying signal power, timing, and frequency separation, which complicates carrier aggregation and dual connectivity, leading to impractical or unmanageable reception using a single receiver circuit.
Implementing a switching functionality that allows a single receiver circuit to receive data from multiple CCs by switching between them, utilizing multiple receiver circuits for different CCs based on power, timing, and frequency thresholds, and employing periodic or event-driven reporting to optimize CC allocation.
Enables efficient reception of multiple CCs with varying characteristics, increasing data throughput and reducing the number of required receiver circuits, thus minimizing cost and footprint while maintaining high QoS.
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Figure CN2024096388_04122025_PF_FP_ABST
Abstract
Description
INTRA-BAND RECEIVER CIRCUIT SHARINGFIELD
[0001] This disclosure relates to receiver circuit sharing by intra-band component carriers (CCs) (e.g., based on power imbalance, receive time difference, or frequency separation) in wireless communication networks.BACKGROUND
[0002] Fifth-Generation New Radio (5G NR) supports Enhanced Universal Terrestrial Radio Access (E-UTRA) NR Dual Connectivity (EN-DC) operation, in which certain component carriers (CCs) are allocated for use in communicating according to Long-Term Evolution (LTE) protocols, and other CCs are allocated for use in communicating according to NR protocols. A User Equipment (UE) that is DC-capable can be connected at the same time to an LTE network and an NR network and communicate using either or both LTE and NR protocols via the allocated CCs. This capability improves network coverage, speed, and reliability.
[0003] 5G NR also supports carrier aggregation (CA) , in which data is transmitted simultaneously on at least two CCs to increase throughput. UEs that are CA-capable may include multiple receiver chains in their radio front end to receive the different CCs and are capable of coalescing signals received in the CCs to recover the encoded data.BRIEF DESCRIPTION OF THE DRAWINGS
[0004] The present disclosure will be readily understood and enabled by the detailed description and accompanying figures of the drawings. Like reference numerals may designate like features and structural elements. Figures and corresponding descriptions are provided as non-limiting examples of aspects, implementations, etc., of the present disclosure, and references to "an" or “one” aspect, implementation, etc., may not necessarily refer to the same aspect, implementation, etc., and may mean at least one, one or more, etc.
[0005] FIGS. 1A, 1B, and 1C illustrate various carrier aggregation schemes.
[0006] FIG. 2 illustrates an example dual connectivity and carrier aggregation communication architecture.
[0007] FIG. 3 illustrates an example receive chain architecture shared by multiple component carriers (CCs) , according to various aspects of the present disclosure.
[0008] FIGS. 4A and 4B are a flow diagram outlining an example method for allocating CCs among receiver chains, according to various aspects of the present disclosure.
[0009] FIG. 5 is a message flow diagram illustrating messaging between a user equipment (UE) and a base station (BS) of a wireless communication network to support CC sharing of receive chains, according to various aspects of the present disclosure.
[0010] FIGS. 6A and 6B are data diagrams illustrating reporting of received power values, according to various aspects of the present disclosure.
[0011] FIG. 7 is a data diagram illustrating reporting of receive time difference values, according to various aspects of the present disclosure.
[0012] FIG. 8 is another message flow diagram illustrating messaging between a UE and a BS to support CC sharing of receive chains, according to various aspects of the present disclosure.
[0013] FIG. 9 is yet another message flow diagram illustrating messaging between a UE and a BS to support CC sharing of receive chains, according to various aspects of the present disclosure.
[0014] FIG. 10 is a diagram of an example wireless network, according to various aspects of the present disclosure.
[0015] FIG. 11 is a diagram of an example of components of a device, according to various aspects of the present disclosure.DETAILED DESCRIPTION
[0016] The following detailed description refers to the accompanying drawings. Like reference numbers in different drawings may identify the same or similar features, elements, operations, etc. Additionally, the present disclosure is not limited to the following description, as other implementations may be utilized, and structural or logical changes made, without departing from the scope of the present disclosure.
[0017] Carrier aggregation (CA) enables multiple different component carriers (CCs) to be used in parallel to communicate between a user equipment (UE) and a network node. In some instances, the CCs may be from different frequency bands or frequency domains or ranges (e.g., Frequency Range 1 (FR1) or FR2) . Carrier aggregation provides a broader choice to connected devices, enabling more bandwidth to be obtained. The greater bandwidth can be used to communicate bandwidth-intensive operations, such as streaming video or communicating large data files.
[0018] When CCs are transmitted from the same cell site, the CCs may be referred to as being collocated CCs. CCs that are collocated may have similar propagation characteristics, resulting in similar receive times and received signal power at the receiver. Non-collocated CCs may have very different propagation characteristics, resulting in different receive times and received signal power at the receiver, which may affect timing and power considerations in carrier aggregation.
[0019] FIG. 1A illustrates an example of intra-band contiguous CCs. In the example, three CCs are contiguously located within a single frequency band (e.g., Band A) . The frequency band can be a selected frequency range in the electromagnetic spectrum and may be referred to as an operating band with an uplink spectrum allocation and / or a downlink spectrum allocation. Selected frequency bands are designated for use with wireless communication. In New Radio (NR) , the frequency bands are numbered using prefix “n” . As an example, operating bands n1 to n76 are re-framing bands that have already been specified for use by 4G, while n77, n78, and n79 are the new 5G TDD operating bands within FR1. The band n77 has an uplink band and a downlink band both in a range of 3300 MHz to 4200 MHz. A bandwidth is a selected portion of a frequency band. Each frequency band may support a set of channel bandwidths. The base station channel bandwidth supports a single RF carrier at the base station. The UE channel bandwidth can be equal to, or less than the base station channel bandwidth. CCs used in a carrier aggregation operation or dual connectivity may have the same bandwidth or different bandwidths.
[0020] FIG. 1B illustrates intra-band non-contiguous CCs, CC1 and CC2, and FIG. 1C illustrates inter-band non-contiguous CCs, CC1, CC2, and CC3. Non-contiguous carrier aggregation can provide aggregation of a fragmented spectrum. Intra-band non-contiguous carrier aggregation provides non-contiguous carrier aggregation within the same frequency band (e.g., Band A) , as illustrated in FIG. 1B. Inter-band non-contiguous carrier aggregation provides non-contiguous carrier aggregation within different frequency bands (e.g., Bands A, B, and C) , as illustrated in FIG. 1C.
[0021] A set of communication hardware (e.g., antenna, filter, amplifier, upconverter / downconverter, local oscillator, or analog / digital converter, etc. ) in a UE is tuned to transmit / receive on a specific CC of a serving cell. In carrier aggregation, different serving cells may communicate with the UE using different active CCs. One of the serving cells is designated as the primary cell (PCell) with any other serving cells being designated as secondary cells (SCells) . The PCell receives the initial connection request from the UE and carries Radio Resource Control (RRC) signaling and other control and user data while the SCells may carry only user data. A handover operation is performed when a UE changes PCells, while SCells may be added and dropped as determined by the network without a handover. The network may activate and de-activate SCells as needed based on throughput need; however, the UE remains connected to the PCell.
[0022] When the serving cells associated with the CCs are not collocated, the received signal strength and / or receive time difference (RTD) of the serving cells may differ significantly. Consequently, non-collocated CCs may complicate the processing of CA signals at the UE.
[0023] FIG. 2 illustrates an architecture 200 showing an example of a non-collocated Carrier Aggregation / Dual Connectivity. Though an Enhanced Universal Terrestrial Radio Access (E-UTRA) New Radio Dual Connectivity (EN-DC) is referred to as an example for illustration purpose, Dual Connectivity (DC) involving one or more radio access technologies, including but not limited to NR or E-UTRA, are amenable. Dual Connectivity allows a UE 210 to connect with two network nodes (e.g., base stations (BSs) , transmission and reception points (TRPs) , Evolved Node Bs (eNBs) , Next-Generation Node Bs (gNBs) , Next-Generation Radio Access Networks (NG-RANs) , and so on) 222-1, 222-2 simultaneously. Examples of UE 210 may include UEs 1010-1 and 1010-2 of FIG. 10, and example RAN nodes or BSs 222-1 and 222-2 may include RAN nodes 1022-1 and 1022-2 of FIG. 10, discussed in detail below. Network nodes 222-1, 222-2 may both be operating in the same frequency range or different frequency ranges. In EN-DC, network nodes 222-1, 222-2 belong to different networks (e.g., a Long-Term Evolution (LTE) network and an NR network) . The set of serving cells associated with one of the network nodes 222-1 is designated a master cell group (MCG) 201, while the set of serving cells associated with the other network node 222-2 is designated a secondary cell group (SCG) 202. MCG 201 initiates the dual connection arrangement with SCG 202 to expand the bandwidth for communication with UE 210. In some instances, a portion of the data to be transmitted from MCG 201 to the UE 210 may be transferred to SCG 202 for transmission to UE 210.
[0024] MCG 201 includes a primary cell (PCell) and one or more secondary cells (SCells) . The PCell is the serving cell with which UE 210 first initiates a random access channel (RACH) process. In FIG. 2, the serving cell in MCG 201 carrying CC1 is designated as the PCell and the serving cells carrying CC2 and CC4 are secondary cells. The serving cell in SCG 202 carrying CC3 is designated as a primary secondary cell (PSCell) and the serving cell carrying CC5 is an SCell. The PSCell performs similar tasks as the PCell in MCG 201, such as coordinating mobility and communication with UE 210 and carrying control signaling with respect to SCG 202. The CCs in each of MCG 201 and SCG 202 are synchronized and combined by the data transmissions from different networks.
[0025] In both CA and DC operations, maximizing the number of CCs carrying data that may be received by UE 210 in parallel may be beneficial from multiple different perspectives, such as increased data throughput and higher Quality of Service (QoS) capabilities. However, signals received over different CCs from non-collocated cells may possess significantly different characteristics that make reception using a single receiver circuit, or “receive chain, ” difficult. For example, two such CCs may exhibit different receive signal powers, different reception timing (e.g., in terms of a number of frames and / or portions thereof) , and / or different frequencies to such a degree that using the same receiver circuit to receive transmissions over both CCs would be either impractical or unmanageable.
[0026] Such CC diversity may be exacerbated by a highly fragmented wireless communication spectrum. More specifically, in various national markets (e.g., Japan, South Korea, Italy, etc. ) , multiple wireless carrier entities may be assigned multiple segments across one or more frequency bands, possibly resulting in a carrier entity being assigned multiple non-contiguous intra-band and / or inter-band CCs.
[0027] To facilitate greater reception bandwidth, UE 210 may employ multiple receiver circuits (or “receive chains” ) so that each may be configured or tuned to a corresponding CC simultaneously to facilitate reception of multiple CCs. However, each added receiver circuit may consume a substantial amount of integrated circuit footprint, add a number of antenna elements, and increase the overall cost of UE 210, thus potentially placing a significant limit on the number of receiver circuits (e.g., two, three, or four) that may be implemented in UE 210.
[0028] As is discussed in greater detail below, some aspects of the present disclosure may provide a “switching” functionality that allows reception of transmission data over two or more CCs using a single receiver circuit (e.g., by switching from one CC to another, and back again, and so forth, in a time-multiplexed manner) . For example, in some aspects, UE 210 may receive data over two or more CCs using a single receiver circuit when an imbalance in received signal power between or among the CCs is less than some threshold (e.g., a first threshold ratio) , a difference in receive time between or among the CCs is less than some threshold (e.g., a first time difference threshold) , and / or a frequency separation between or among the CCs is less than some threshold (e.g., a first frequency separation threshold) . In some aspects, the two or more CCs sharing a single receiver circuit under such circumstances may be intra-band, collocated CCs.
[0029] Also, in some aspects, UE 210 may include a second receiver circuit that is configured to receive data over another CC. In such aspects, constraints on the other CC may not be as stringent as the CCs received by the first receiver circuit. For example, an imbalance ratio in received power between the other CC and either of the first two CCs may be greater than the first threshold ratio and less than a second threshold ratio. In another example, a difference in reception time between the third CC and either of the first two CCs may be greater than the first threshold time difference and less than a second threshold time difference. In yet another example, a frequency separation between the third CC and either of the first two CCs may be greater than the second frequency separation threshold. In some aspects, the third CC may be in the same or different frequency band or may be non-collocated relative to the first two CCs.
[0030] In some aspects, the second receiver circuit may receive two or more CCs in a manner similar to that of the first receiver circuit (e.g., by way of switching between or among CCs as described above) , thus increasing the number of CCs that may be received at UE 210. In yet other aspects, additional receiver circuits (e.g., a third, and possibly a fourth, receiver circuit) may also be configured to receive additional CCs in a corresponding manner.
[0031] Also, in some aspects, two receiver circuits may be configured to receive multiple (e.g., two, three, or more) CCs based on measurements of signals associated with the CCs performed by UE 210. For example, in some aspects, UE 210 may report signal power measurements (e.g., Reference Signal Received Power (RSRP) measurements, and / or relative RSPR measurements) and time difference measurements (e.g., system frame number (SFN) and frame timing difference (SFTD) measurements, and / or relative SFTD measurements) of the CCs to a base station 222 of a network. Based on these measurements and the frequency separation, if any, between the CCs, the network may determine an allocation of the CCs among the two receiver circuits that allows reception of the allocated CCs, and provide that configuration to UE 210 for implementing. Thereafter, the network may schedule transmissions over the CCs based on the configuration.
[0032] In another aspect, the configuration of the receiver circuits may be event-triggered. For example, the network (e.g., by way of base station 222) may provide UE 210 with a configuration of one or more events based on target power imbalance thresholds and / or timing difference thresholds. UE 210 may then monitor power measurements and time difference measurements of the CCs to determine whether an event warranting a reconfiguration of the receiver circuits has occurred. If such an event has occurred, UE 210 may, based on the corresponding configuration of the event (e.g., received from the network) , allocate the various CCs to the receiver circuits to facilitate the reception of data over three or more CCs. UE 210 then may inform the network (e.g., via base station 222) of the applied configuration (e.g. the allocation of the CCs) . In another aspect, UE 210 may instead inform the network of the occurrence of such an event, and the network may provide the configuration to allocate the CCs to the receiver circuits. In either case, the network may then schedule the transmissions over the CCs according to the receiver circuit configuration.
[0033] FIG. 3 illustrates an example receiver circuit (or referred to as a downlink receive chain) architecture shared by multiple CCs (e.g., CC1, CC2, and CC3) , according to various aspects of the present disclosure. While a first receiver circuit 300A and a second receiver circuit 300B are shown for a single UE 210 to simplify the following discussion, other embodiments may include greater than two (e.g., three or four) such receiver circuits. Another example of first receiver circuit 300A and second receiver circuit 300B may include RF circuitry 1106 of FIG. 11, described in greater detail below.
[0034] As depicted in FIG. 3, the frequency separation of between CC1 and CC2 is sufficiently small to allow reception of CC1 and CC2 in first receiver circuit 300A by switching therebetween over time. Oppositely, a frequency separation between CC3 and either CC1 or CC2 is sufficient great to prevent CC3 from also being received by first receiver circuit 300A at the same time CC1 and CC2 are being received. Consequently, second receiver circuit 300B may be employed to receive CC3 separately. As described in greater detail below, other characteristics that may cause CC3 to be received by second receiver circuit 300B include a received power that is significantly greater or less than those of CC1 and CC2, and a significant timing difference between CC3 and either or both of CC1 and CC2.
[0035] As depicted in FIG. 3, each of first receiver circuit (or first receive chain) 300A and second receiver circuit (or second receive chain) 300B may include an antenna 310, a radio frequency (RF) bandpass (BP) filter 312, a low-noise amplifier 314, a mixer 318, a low-pass (LP) filter 320, and an analog-to-digital converter (ADC) 322. Further, in some aspects, first receiver circuit 300A may be driving mixer 318 with a first local oscillator LO1 316A having a frequency fLO1 that is positioned between CC1 and CC2 to facilitate reception of both CC1 and CC2. Second receiver circuit 300B may instead include a second local oscillator LO2 316B, a frequency fLO2 of which is positioned at or near CC3 to facilitate separate reception of CC3. In other aspects, first receiver circuit 300A and second receiver circuit 300B may include greater or fewer numbers and / or types of components than those specifically depicted in FIG. 3.
[0036] In operation, antenna 310 of both first receiver circuit 300A and second receiver circuit 300B may receive substantially the same downlink RF signal that includes CC1, CC2, and CC3. RF BP filter 312 filters the RF signal and LNA 314 amplifies the filtered RF signal in both first receiver circuit 300A and second receiver circuit 300B. Thereafter, mixer 318 in first receiver circuit 300A down-converts a portion of the amplified RF signal in the neighborhood of fLO1 and LP filter 320 filters out higher frequencies in the resulting signal to produce an analog baseband signal that includes signals associated with CC1 and CC2 while attenuating signals associated with CC3. Oppositely, mixer 318 in second receiver circuit 300B down-converts a portion of the amplified RF signal in the neighborhood of fLO2 and LP filter 320 filters out higher frequencies in the resulting signal to produce an analog baseband signal that includes signals associated with CC3 while attenuating signals associated with CC1 and CC2. ADC 322 in both first receiver circuit 300A and second receiver circuit 300B may then produce digital baseband signals for processing by one or more baseband processors (not shown in FIG. 3) of the UE.
[0037] In some aspects, the gain of LNA 314 of first and second receiver circuits 300A and 300B may be adjusted (e.g., via automatic gain control (AGC) to amplify the downlink signals of CC1, CC2, or CC3 by an appropriate amount. Further, in some aspect, the frequency of LO1 of first receiver circuit 300A and LO2 of second receiver circuit 300B may be tuned to the target frequency of CC1, CC2, or CC3 as needed. Additionally, in some aspects, the timing of ADC 322 of first and second receiver circuits 300A and 300B may be adjusted to adapt to the particular timing of CC1, CC2, or CC3.
[0038] FIGS. 4A and 4B are a flow diagram outlining an example method 400 for allocating CCs among receiver chains (e.g., first receiver circuit 300A and second receiver circuit 300B of FIG. 3) , according to various aspects of the present disclosure. In method 400, at FIG. 4A, at operations 402, 404, and 406, if any of a number (e.g., three) of value comparisons involving two or more CCs fail, execution may proceed to FIG. 4B. Otherwise, the two or more CCs may be assigned to the same receiver circuit or receive chain. Method 400, as well as other methods and messaging described below in connection with UE 210 and BS 222, may be performed or controlled at least in part by one or more processors (e.g., baseband processors or baseband circuitry 1104 of FIG. 11, described more fully below) of corresponding UE 210 or BS 222.
[0039] More specifically, in some aspects, at operation 402, a CC power imbalance ratio may be compared to a first threshold ratio TPIA. In some aspects, a received signal power associated with each of a pair of CCs (e.g., a Reference Signal Received Power (RSRP) of CC1 and CC2) may be measured and compared as a ratio to a first threshold ratio TPIA. Further, in some aspects, first threshold ratio TPIA may be 6 decibels (dB) . If the CC power imbalance ratio is less than first threshold ratio TPIA, processing may proceed to operation 404. Otherwise, processing may proceed to FIG. 4B.
[0040] At operation 404, a receive time difference (RTD) between the pair of CCs (e.g., a system frame number (SFN) and frame timing difference (SFTD) between CC1 and CC2) is measured and compared to a first threshold time difference TRTDA. In some aspects, first threshold time difference TRTDA may be 3 microseconds (μs) . If the RTD is less than first threshold time difference TRTDA, processing may proceed to operation 406. Otherwise, processing may proceed to FIG. 4B.
[0041] At operation 406, a frequency separation between the pair of CCs (e.g., a frequency separation between CC1 and CC2) is measured and compared to a first frequency separation threshold TFSA and a second frequency separation threshold TFSB. In some aspects, first frequency separation threshold TFSA may be a minimum frequency separation between two CCs that may allow a filter of first receiver circuit 300A and / or second receiver circuit 300B to discriminate between the CCs. Also, in some aspects, second frequency separation threshold TFSB may be a maximum frequency separation between two CCs that may allow first receiver circuit 300A and / or second receiver circuit 300B to capture both CCs and selectively filter one or the other CC for further processing. If the frequency separation is greater than first frequency separation threshold TFSA and less than second frequency separation threshold TFSB, processing may proceed to operation 408, in which the CCs being compared may be assigned or allocated to the same receive chain (e.g., first receiver circuit 300A or second receiver circuit 300B) for reception. Otherwise, processing may proceed to FIG. 4B.
[0042] In some aspects, first frequency separation threshold TFSA may be zero, indicating there is no substantive minimum frequency separation when receiving both CCs using the same receiver circuit. Otherwise, a non-zero first frequency separation threshold TFSA may indicate that differentiating between the CCs (e.g., by way of digital filtering) may be difficult without at least some frequency separation between the CCs.
[0043] Continuing to FIG. 4B, method 400 may determine whether the CCs that are not allocated to the same receiver circuit for reception may be allocated to different receiver circuits (e.g., first receiver circuit 300A and second receiver circuit 300B) , or if assignment to the different circuits is not advisable. For example, method 400 may proceed at operation 410, in which the CC power imbalance ratio may be compared to a second threshold ratio TPIB. In some aspects, the previously measured received signal power associated with each of a pair of CCs may be compared as a ratio to second threshold ratio TPIB. Further, in some aspects, second threshold ratio TPIB may be 25 decibels (dB) . If the CC power imbalance ratio is less than second threshold ratio TPIB, processing may proceed to operation 412. Otherwise, processing may proceed to operation 418, at which the CCs are not assigned to the available receiver circuits.
[0044] At operation 412, the previously measured RTD between the pair of CCs (e.g., the SFTD between CC1 and CC2) may be compared to a second threshold time difference TRTDB. In some aspects, second threshold time difference TRTDB may be 33 μs. If the RTD is less than second threshold time difference TRTDB, processing may proceed to operation 414. Otherwise, processing may proceed to operation 418, at which the CCs are not assigned to the available receiver circuits.
[0045] At operation 414, the previously measured frequency separation between the pair of CCs (e.g., the frequency separation between CC1 and CC2) is compared to the second frequency separation threshold TFSB. If the frequency separation is greater than second frequency separation threshold TFSB, processing may proceed to operation 416, in which the CCs being compared may be assigned to different receive chains (e.g., first receiver circuit 300A and second receiver circuit 300B) for reception. Otherwise, processing may proceed to operation 418, at which the CCs are not assigned to the available receiver circuits.
[0046] FIG. 5 is a message flow diagram illustrating messaging 500 between a UE 210 and a RAN node (e.g., a base station (BS) ) 222 of a wireless communication network to support CC sharing of receive chains, according to various aspects of the present disclosure. More particularly, messaging 500 may support a reporting-based process, by which UE 210 repeatedly or periodically reports signal measurements to BS 222, and BS 222 configures UE 210 by allocating the various CCs among two or more receiver circuits (e.g., first receiver circuit 300A and second receiver circuit 300B) based on the reported information.
[0047] As illustrated in FIG. 5, UE 210 may perform measurements (operation 502) of signals received over a plurality of CCs (e.g., CC1, CC2, CC3, etc. ) and transmit values for these measurements in one or more measurement values reports 504 to the BS 222. In some aspects, these measurement values may include received power (e.g., RSRP) measurement values and timing difference (e.g., SFTD) measurement values. Also, in some aspects, such measurement values may be standalone measurement values involving individual CCs, relative measurement values involving individual CCs relative to some reference value, or relative measurement values involving multiple CCs relative to each other. In some embodiments, BS 222 may provide a measurement configuration (not shown in FIG. 5) to UE 210, such as by way of a MeasConfig information element (IE) transmitted in an RRC message, such as an RRC Reconfiguration or RRC Resume message. Accordingly, measurement values report 504 may be provided in an RRC message or as a lower-layer (e.g., Layer-1 (L1) ) transmission to BS 222.
[0048] FIGS. 6A and 6B are data diagrams illustrating reporting of received power (e.g., RSRP) values 600A, according to various aspects of the present disclosure. In FIG. 6A, for example, an RSRP 602A for the CC (e.g., CC1) associated with the strongest received power at UE 210 may be provided in measurement values report 504 (e.g., in units of decibel-milliwatts (dBm) ) . For each of the remaining CCs received at UE 210, measurement values report 504 may include a differential RSRP 604A, 606A, 608A, etc. for each remaining CC (e.g., CC2, CC3, CC4, etc. ) relative to the RSRP for CC1 (e.g., also in dBm) . In such an example, the size of the received power measurement values for each remaining CC may be smaller than the value for the CC with the strongest received power. In another aspect, as depicted in FIG. 6B, received power values 600B may instead include an RSRP 602B, 604B, 606B, 608B, etc. (e.g., in dBm) for each individual CC (e.g., CC1, CC2, CC3, CC4, etc. ) .
[0049] FIG. 7 is a data diagram illustrating reporting of receive time difference (e.g., SFTD) values 700, according to various aspects of the present disclosure. In an aspect, receive time difference values 700 may include an SFTD 702, 704, 706, 708, etc. (e.g., in μs) for each individual CC (e.g., CC1, CC2, CC3, CC4, etc. ) relative to a CC corresponding to a PCell. Accordingly, in some aspects, CCs corresponding to a PCell may have a reported SFTD of zero. Other ways of reporting SFTDs for the various CCs are also possible.
[0050] Returning to FIG. 5, in response to measurement values report 504, BS 222 (or another network component) may determine an allocation of the CCs (e.g., CC1, CC2, CC3, etc. ) to the receive chains (e.g., first receiver circuit 300A and second receiver circuit 300B) at operation 506 and transmit a receive chain configuration 508 indicating such an allocation to UE 210. In some aspects, the CC allocation to the receive chains may be determined according to method 400 of FIGS. 4A and 4B, as described above. In some aspects, receive chain configuration 508 may be transmitted to UE 210 as a portion of an RRC Reconfiguration or RRC Resume message. In response, UE 210 may configure the receive chains (e.g., first receiver circuit 300A and second receiver circuit 300B) at operation 510 according to receive chain configuration 508.
[0051] After configuration of the receive chains, BS 222 may transmit CC scheduling information 512, which may indicate the timing of data transmission over each CC (e.g., CC1, CC2, and CC3) . In some aspects, CCs that share a receive chain (e.g., CC1 and CC2 sharing first receiver circuit 300A) may be scheduled such that CC1 and CC2 carry data in a switching manner (e.g., such as by time-division multiplexing) , but not simultaneously. Further, data may be transmitted using CC3 (e.g., received by second receiver circuit 300B) simultaneously with CC1 and CC2. In some aspects, CC scheduling information 512 may be provided by way of Downlink Control Information (DCI) (e.g., in a Carrier Indicator Field (CIF) ) . Further, in some aspects, self-carrier scheduling (e.g., in which each CC carries DCI with scheduling information for that particular CC) and / or cross-carrier scheduling (e.g., in which a CC may include scheduling information for the corresponding CC and one or more other CCs) may be employed to provide CC scheduling information 512.
[0052] Moreover, in some aspects, CC scheduling information 512 may employ slot-based scheduling, which may be simpler than mini-slot scheduling or other types of scheduling for the CCs. In some aspects, slot-based scheduling may be appropriate in cases in which the switching time between CCs in a receive chain (e.g., between CC1 and CC2 in first receiver circuit 300A) is much less than the slot time, which may be possible by way of a proper setting of the “K0” value that may determine the delay between a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) , the length of which may determine the amount of time available to switch between CCs in a receive chain before receiving a data transmission over the CCs.
[0053] FIGS. 8 and 9 are message flow diagrams illustrating messaging between UE 210 and BS 222 that employs “event-driven” scheduling, as opposed to the repeated measurement reporting by UE 210 discussed above in conjunction with FIG. 5. More specifically, FIG. 8 is a message flow diagram illustrating messaging 800 between UE 210 and BS 222, according to various aspects of the present disclosure. During messaging 800, BS 222 may transmit a measurement threshold configuration 802 that may include information indicating one or more conditions for one or more events associated with a plurality of CCs (e.g., CC1, CC2, CC3, etc. ) . In some aspects, an event may be described by one or more conditions that, if met, warrant or cause a reconfiguration of at least one receive chain (e.g., first receiver circuit 300A and / or second receiver circuit 300B) . In some aspects, measurement threshold configuration 802 may be provided as a MeasConfig IE transmitted by way of an RRC message, such as an RRC Reconfiguration or RRC Resume message
[0054] In some aspects, the one or more conditions may include one or more received power (e.g., RSRP) ratio threshold values and / or one or more RTD (e.g., SFTD) threshold values for a plurality of CCs being monitored. For example, the received power threshold values may include first threshold ratio TPIA and second threshold ratio TPIB, as described in connection with FIGS. 4A and 4B. The one or more RTD threshold values may include first threshold time difference TRTDA and second threshold time difference TRTDB of FIGS. 4A and 4B. Other thresholds that involve individual threshold values, threshold ratios, threshold differences or sums, or the like, may be employed in other aspects.
[0055] Further, in some aspects, the events included in measurement threshold configuration 802 may include combinations of the one or more conditions specified by measurement threshold configuration 802, and may include one or more additional conditions not explicitly indicated in measurement threshold configuration 802. For example, the events may be based on threshold values for frequency separation between CCs (e.g., first frequency separation threshold TFSA and second frequency separation threshold TFSB of FIGS. 4A and 4B) .
[0056] Accordingly, in one aspect, the one or more conditions included in measurement threshold configuration 802 may include those listed in FIG. 4A in conjunction with operations 402, 404, and 406, as well as those listed in FIG. 4B in connection with operations 410, 412, and 414. In other aspects, additional and / or alternative conditions may be specified.
[0057] At operation 804, in response to receiving measurement threshold configuration 802, UE 210 may perform measurements on the plurality of CCs to monitor the CCs for the one or more conditions so that occurrence of the one or more events may be detected, if present. In some aspects, one or more events may be associated with those conditions cited in operations 402, 404, and 406 of FIG. 4A, and one or more events may be associated with operations 410, 412, and 414 of FIG. 4B. Accordingly, in some aspects, the one or more events may include (1) an event to assign two or more CCs to the same receive chain (e.g., first receiver circuit 300A or second receiver circuit 300B) , as indicated at operation 408 of FIG. 4A; (2) an event to assign CCs to different receive chains (e.g., first receiver circuit 300A and second receiver circuit 300B) , as indicated at operation 416 of FIG. 4B; and / or (3) an event to not assign two or more CCs, as indicated at operation 418 of FIG. 4B. Additional and / or alternative events other than those specified in FIGS. 4A and 4B may be employed in other aspects.
[0058] In some aspects, at operation 806, UE 210 may detect or determine an occurrence of one or more of the events described above based on the monitored conditions. Further, in some aspects, at operation 808, in response to detecting or determining the occurrence of one or more such events, UE 210 may determine a proper or acceptable allocation of the plurality of CCs to the receive chains (e.g., first receiver circuit 200A and second receiver circuit 300B) , and may configure the receive chains accordingly at operation 810.
[0059] In some aspects, in conjunction with configuring the receive chains (e.g., immediately before or after) , UE 210 may transmit configuration information 812 regarding the receive chain configuration (e.g., the allocation of the CCs to the receive chains) to BS 222. For example, in some aspects, configuration information 812 may be provided in an RRC message, such as a part of an event-driven measurement report (e.g., provided in an RRC message or as a lower-layer (e.g., L1) transmission to BS 222) .
[0060] In response to configuration information 812, BS 222 may transmit CC scheduling information 814 to UE 210. In some aspects, CC scheduling information 814 may be the same or similar to CC scheduling information 512 of FIG. 5, as described in detail above (e.g., slot-based scheduling by way of self-carrier scheduling and / or cross-carrier scheduling) .
[0061] FIG. 9 is yet another message flow diagram illustrating messaging 900 between UE 210 and BS 222 to support CC sharing of receive chains, according to various aspects of the present disclosure. In some aspects, messaging 900 differs from messaging 800 of FIG. 8 in that UE 210 provides BS 222 information regarding one or more detected events to facilitate determination of the allocation of a plurality of CCs to the receive chains by the network, and BS 222 provides configuration information that includes allocation of the CCs among the receive chains to UE 210.
[0062] More specifically, in a manner at least similar to that shown in FIG. 8 for messaging 800, messaging 900 of FIG. 9 includes a measurement threshold configuration 902 transmitted by BS 222 to UE 210, where measurement threshold configuration 902 may include information indicating one or more conditions for one or more events associated with a plurality of CCs, as discussed above in connection with measurement threshold configuration 802. Further, in response to measurement threshold configuration 902, UE 210 may perform measurements relating to the one or more conditions at operation 904, and may detect one or more events associated with the one or more conditions at operation 906. In some aspects, operations 904 and 906 are the same or similar to operations 804 and 806 of FIG. 8, as described in detail above.
[0063] Thereafter, instead of UE 210 determining the allocation of CCs to the receive chains (e.g., operation 808 of FIG. 8) and configuration the receive chains accordingly (e.g., operation 810 of FIG. 8) , UE 210 of messaging 900 of FIG. 9 may transmit detected event information 908 (e.g., indicating which events were detected at UE 210) to BS 222. In some aspects, detected event information 908 may be included in an RRC message, such as a part of an event-driven measurement report (e.g., provided in an RRC message or as a lower-layer (e.g., L1) transmission to BS 222) .
[0064] In response to detected event information 908, BS 222 may determine a proper or acceptable allocation of the plurality of CCs to the receive chains (e.g., first receiver circuit 200A and second receiver circuit 300B) at operation 910, in contrast to UE 210 performing corresponding operation 810, as shown in FIG. 8. Thereafter, BS 222 may transmit receive chain configuration 912 (e.g., the allocation of the CCs to the receive chains) to UE 210. BS 222 may provide or validate the configuration based on the received event occurrence information. BS 222 may also not validate the configuration, and / or provide a different reconfiguration based on the received event occurrence information and / or other assisting information to allocate the CCs to the receiver circuits. As an example, in some aspects, receive chain configuration 912 may be transmitted to UE 210 as a portion of an RRC Reconfiguration or RRC Resume message. UE 210, in response to receive chain configuration 912, may determine the receive chains (e.g., first receiver circuit 300A and second receiver circuit 300B) at operation 914 according to receive chain configuration 912.
[0065] After configuration of the receive chains at operation 914, BS 222 may transmit CC scheduling information 916, which may indicate the timing of data transmission over each CC (e.g., CC1, CC2, and CC3) . In some aspects, CC scheduling information 916 may be the same or similar to CC scheduling information 512 of FIG. 5 and / or CC scheduling information 814 of FIG. 8, as described in detail above (e.g., slot-based scheduling by way of self-carrier scheduling and / or cross-carrier scheduling) . In some aspects, BS 222 may transmit CC scheduling information 916 after some period of time after receiving chain configuration 912 (e.g., to ensure UE 210 is ready to receive the scheduled CCs) . In some aspects, the period of time may be a single predefined value, a value chosen from a plurality of predefined values, a value determined from a capability of UE 210, or another value.
[0066] As can be seen from the foregoing discussion, aspects of the present disclosure provide a mechanism by which a switching functionality may be implemented that allows reception of data over two or more CCs (e.g., intra-band, collocated CCs) using a single receiver circuit or receive chain, thus providing the ability to receive data over a greater number of CCs than available receiver circuits at the UE. Such functionality may be particularly useful for intra-band non-collocated NR CA and EN-DC situations, in which CCs that have significantly different power levels and reception timing may be received using two or more receiver circuits. Further, configuration solutions involving both periodic or repeated measurement reporting and event-driven reporting have been discussed above.
[0067] Above are several flow diagrams outlining example methods and exchanges of messages. In this description and the appended claims, use of the term “determine” with reference to some entity (e.g., parameter, variable, and so on) in describing a method step or function is to be construed broadly. For example, “determine” is to be construed to encompass, for example, receiving and parsing a communication that encodes the entity or a value of an entity. “Determine” should be construed to encompass accessing and reading memory (e.g., lookup table, register, device memory, remote memory, and so on) that stores the entity or value for the entity. “Determine” should be construed to encompass computing or deriving the entity or value of the entity based on other quantities or entities. “Determine” should be construed to encompass any manner of deducing or identifying an entity or value of the entity.
[0068] As used herein, the term “identify” , when used with reference to some entity or value of an entity, is to be construed broadly as encompassing any manner of determining the entity or value of the entity. For example, the term “identify” is to be construed to encompass, for example, receiving and parsing a communication that encodes the entity or a value of the entity. The term “identify” should be construed to encompass accessing and reading memory (e.g., device queue, lookup table, register, device memory, remote memory, and so on) that stores the entity or value for the entity.
[0069] As used herein, the term “encode” , when used with reference to some entity or value of an entity, is to be construed broadly as encompassing any manner or technique for generating a data sequence or signal that communicates the entity to another component.
[0070] As used herein, the term “select” , when used with reference to some entity or value of an entity, is to be construed broadly as encompassing any manner of determining the entity or value of the entity from amongst a plurality or range of possible choices. For example, the term “select” is to be construed to encompass accessing and reading memory (e.g., lookup table, register, device memory, remote memory, and so on) that stores the entities or values for the entity and returning one entity or entity value from amongst those stored. The term “select” is to be construed as applying one or more constraints or rules to an input set of parameters to determine an appropriate entity or entity value. The term “select” is to be construed as broadly encompassing any manner of choosing an entity based on one or more parameters or conditions.
[0071] As used herein, the term “derive” , when used with reference to some entity or value of an entity, is to be construed broadly. “Derive” should be construed to encompass accessing and reading memory (e.g., lookup table, register, device memory, remote memory, and so on) that stores some initial value or foundational values and performing processing and / or logical / mathematical operations on the value or values to generate the derived entity or value for the entity. The term “derive” should be construed to encompass computing or calculating the entity or value of the entity based on other quantities or entities. The term “derive” should be construed to encompass any manner of deducing or identifying an entity or value of the entity.
[0072] As used herein, the term “indicate” , when used with reference to some entity (e.g., parameter or setting) or value of an entity, is to be construed broadly as encompassing any manner of communicating the entity or value of the entity, either explicitly or implicitly. For example, bits within a transmitted message may be used to explicitly encode an indicated value or may encode an index or other indicator that is mapped to the indicated value by prior configuration. The absence of a field within a message may implicitly indicate a value of an entity based on prior configuration.
[0073] Examples
[0074] Example 1 is a baseband processor configured to perform operations including: receiving, using one of a first receiver circuit or a second receiver circuit of a user equipment (UE) , a first transmission over a first component carrier (CC) and a second transmission over a second CC by switching between the first CC and the second CC, wherein an imbalance ratio in received power between the first transmission and the second transmission is less than a first threshold ratio, a difference in receive time between the first transmission and the second transmission is less than a first threshold time difference, and a frequency separation between the first CC and the second CC is greater than a first frequency separation threshold and less than a second frequency separation threshold; and receiving, using another of the first receiver circuit or the second receiver circuit, a third transmission over a third CC during the first transmission and the second transmission.
[0075] Example 2 includes the subject matter of Example 1, including or omitting optional elements, wherein an imbalance ratio in received power between the third transmission and at least one of the first transmission or the second transmission is greater than the first threshold ratio and less than a second threshold ratio.
[0076] Example 3 includes the subject matter of Example 1, including or omitting optional elements, wherein a difference in reception time between the third transmission and at least one of the first transmission or the second transmission is greater than the first threshold time difference and less than a second threshold time difference.
[0077] Example 4 includes the subject matter of Example 1, including or omitting optional elements, wherein a frequency separation between the third transmission and at least one of the first transmission or the second transmission is greater than the second frequency separation threshold.
[0078] Example 5 includes the subject matter of Example 1, including or omitting optional elements, wherein the operations further include: measuring a reference signal received power (RSRP) of each of the first CC, the second CC, and the third CC; causing transmission of RSRP indications of the RSRP of each of the first CC, the second CC, and the third CC; measuring a system frame number (SFN) and frame timing difference (SFTD) of each of the first CC, the second CC, and the third CC; causing transmission of SFTD indications of the SFTD of each of the first CC, the second CC, and the third CC; receiving configuration information based on the RSRP indications, the SFTD indications, and frequency separation information associated with the first CC, the second CC, and the third CC, the configuration information allocating the first CC and the second CC to the one of the first receiver circuit or the second receiver circuit and allocating the third CC to the other of the first receiver circuit or the second receiver circuit; and allocating the first CC, the second CC, and the third CC to be received using the first receiver circuit and the second receiver circuit based on the configuration information.
[0079] Example 6 includes the subject matter of Example 5, including or omitting optional elements, wherein the RSRP indications include the RSRP of each of the first CC, the second CC, and the third CC.
[0080] Example 7 includes the subject matter of Example 5, including or omitting optional elements, wherein the RSRP indications include the RSRP of one of the first CC, the second CC, or the third CC that is a highest RSRP of the RSRPs associated with the first CC, the second CC, and the third CC; and a difference between the highest RSRP and the RSRP of each of remaining ones of the first CC, the second CC, and the third CC.
[0081] Example 8 includes the subject matter of Example 5, including or omitting optional elements, wherein the SFTD indications include the SFTD of each of the first CC, the second CC, and the third CC.
[0082] Example 9 includes the subject matter of Example 8, including or omitting optional elements, wherein an SFTD associated with a primary cell (PCell) corresponding with one of the first CC, the second CC, or the third CC is zero.
[0083] Example 10 includes the subject matter of Example 5, including or omitting optional elements, wherein the operations further include: receiving, in response to receiving the configuration information, scheduling information for the first CC, the second CC, and the third CC.
[0084] Example 11 includes the subject matter of Example 1, including or omitting optional elements, wherein the operations further include: receiving event configuration information indicating one or more conditions for one or more events, the event configuration information including one or more reference signal received power (RSRP) threshold values and one or more system frame number (SFN) and frame timing difference (SFTD) threshold values for the first CC, the second CC, and the third CC; monitoring, based on the event configuration information, the first CC, the second CC, and the third CC for the one or more conditions; and determining, based on the one or more conditions, an occurrence of at least one of the one or more events.
[0085] Example 12 includes the subject matter of Example 11, including or omitting optional elements, wherein the operations further include: performing, based on the occurrence of at least one of the one or more events, a configuration of at least one of the first receiver circuit or the second receiver circuit to receive transmissions over one or more of the first CC, the second CC, or the third CC; and causing transmission of an indication of the configuration.
[0086] Example 13 includes the subject matter of Example 12, including or omitting optional elements, wherein the operations further include: receiving, in response to transmitting the indication of the configuration, scheduling information for the first CC, the second CC, and the third CC.
[0087] Example 14 includes the subject matter of Example 11, including or omitting optional elements, wherein the operations further include: causing transmission of an indication of the occurrence of the at least one of the one or more events; receiving, based on the indication of the occurrence of the at least one of the one or more events, an indication of a configuration of at least one of the first receiver circuit or the second receiver circuit to receive transmissions over one or more of the first CC, the second CC, or the third CC; and performing the configuration of the at least one of the first receiver circuit or the second receiver circuit.
[0088] Example 15 includes the subject matter of Example 14, including or omitting optional elements, wherein the operations further include: receiving, after performing the configuration, scheduling information for the first CC, the second CC, and the third CC.
[0089] Example 16 is a method for a user equipment (UE) , the method including: determining for one of a first receiver circuit or a second receiver circuit of the UE to receive a first transmission over a first component carrier (CC) and a second transmission over a second CC to facilitate switching between the first CC and the second CC, wherein an imbalance ratio in received power between the first transmission and the second transmission is less than a first threshold ratio, a difference in receive time between the first transmission and the second transmission is less than a first threshold time difference, and a frequency separation between the first CC and the second CC is greater than a first frequency separation threshold and less than a second frequency separation threshold; configuring another of the first receiver circuit or the second receiver circuit to receive a third transmission over a third CC during the first transmission and the second transmission; receiving the first transmission and the second transmission using the first receiver circuit; and receiving the third transmission using the second receiver circuit.
[0090] Example 17 includes the subject matter of Example 16, including or omitting optional elements, wherein at least one of: an imbalance ratio in received power between the third transmission and at least one of the first transmission or the second transmission is greater than the first threshold ratio and less than a second threshold ratio; a difference in reception time between the third transmission and at least one of the first transmission and the second transmission is greater than the first threshold time difference and less than a second threshold time difference; or a frequency separation between the third transmission and at least one of the first transmission and the second transmission is greater than the second frequency separation threshold.
[0091] Example 18 is a processor configured to perform operations including: causing a first transmission over a first component carrier (CC) and a second transmission over a second CC to a user equipment (UE) by switching between the first CC and the second CC, wherein an imbalance ratio in received power between the first transmission and the second transmission at the UE is less than a first threshold ratio, a difference in receive time between the first transmission and the second transmission at the UE is less than a first threshold time difference, and a frequency separation between the first CC and the second CC is greater than a first frequency separation threshold and less than a second frequency separation threshold; and causing a third transmission to the UE over a third CC during the first transmission and the second transmission.
[0092] Example 19 includes the subject matter of Example 18, including or omitting optional elements, wherein at least one of: an imbalance ratio in received power between the third transmission and at least one of the first transmission or the second transmission at the UE is greater than the first threshold ratio and less than a second threshold ratio; a difference in reception time between the third transmission and at least one of the first transmission and the second transmission at the UE is greater than the first threshold time difference and less than a second threshold time difference; or a frequency separation between the third transmission and at least one of the first transmission and the second transmission is greater than the second frequency separation threshold.
[0093] Example 20 includes the subject matter of Example 18, including or omitting optional elements, wherein the operations further include: receiving, from the UE, reference signal received power (RSRP) indications of an RSRP of each of the first CC, the second CC, and the third CC; receiving, from the UE, system frame number (SFN) and frame timing difference (SFTD) indications of an SFTD of each of the first CC, the second CC, and the third CC; causing transmission, to the UE, of configuration information based on the RSRP indications, the SFTD indications, and frequency separation information associated with the first CC, the second CC, and the third CC, the configuration information allocating the first CC and the second CC to the one of a first receiver circuit or a second receiver circuit of the UE and allocating the third CC to another of the first receiver circuit or the second receiver circuit; and causing transmission, to the UE after causing the transmission of the configuration information, of scheduling information for the first CC, the second CC, and the third CC.
[0094] Example 21 includes the subject matter of Example 18, including or omitting optional elements, wherein the operations further include: causing transmission, to the UE, of event configuration information indicating one or more conditions for one or more events, the event configuration information including one or more reference signal received power (RSRP) threshold values and one or more system frame number (SFN) and frame timing difference (SFTD) threshold values for the first CC, the second CC, and the third CC; receiving, from the UE in response to the event configuration information, an indication of a configuration of at least one of a first receiver circuit or a second receiver circuit of the UE to receive transmissions over one or more of the first CC, the second CC, or the third CC; and causing transmission, to the UE in response to the indication of the configuration, of scheduling information for the first CC, the second CC, and the third CC.
[0095] Example 22 includes the subject matter of Example 18, including or omitting optional elements, wherein the operations further include: causing transmission, to the UE, of event configuration information indicating one or more conditions for one or more events, the event configuration information including one or more reference signal received power (RSRP) threshold values and one or more system frame number (SFN) and frame timing difference (SFTD) threshold values for the first CC, the second CC, and the third CC; receiving, from the UE, a transmission of an indication of an occurrence of at least one of the one or more events; causing transmission, to the UE based on the indication of the occurrence of the at least one of the one or more events, an indication of a configuration of at least one of a first receiver circuit or a second receiver circuit of the UE to receive transmissions over one or more of the first CC, the second CC, or the third CC; and causing transmission, to the UE after causing transmission of the indication of the configuration, of scheduling information for the first CC, the second CC, and the third CC.
[0096] A method as substantially described herein with reference to each or any combination substantially described herein, included in examples 1-15, and in the Detailed Description.
[0097] A non-transitory computer readable medium as substantially described herein with reference to each or any combination substantially described herein, included in examples 1-15, and in the Detailed Description.
[0098] A wireless device configured to perform any action or combination of actions as substantially described herein, included in examples 1-15, and in the Detailed Description.
[0099] An integrated circuit configured to perform any action or combination of actions as substantially described herein, included in examples 1-15, and in the Detailed Description.
[0100] An apparatus configured to perform any action or combination of actions as substantially described herein, included in examples 1-15, and in the Detailed Description.
[0101] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.
[0102] FIG. 10 is an example network 1000 according to one or more implementations described herein. Example network 1000 may include UEs 1010-1, 1010-2, etc. (referred to collectively as “UEs 1010” and individually as “UE 1010” ) , a radio access network (RAN) 1020, a core network (CN) 1030, application servers 1040, and external networks 1050.
[0103] The systems and devices of example network 1000 may operate in accordance with one or more communication standards, such as Second-Generation (2G) , Third-Generation (3G) , Fourth-Generation (4G) (e.g., Long-Term Evolution (LTE) ) , and / or Fifth-Generation (5G) (e.g., New Radio (NR) ) communication standards of the Third-Generation Partnership Project (3GPP) . Additionally, or alternatively, one or more of the systems and devices of example network 1000 may operate in accordance with other communication standards and protocols discussed herein, including future versions or generations of 3GPP standards (e.g., Sixth- Generation (6G) standards, Seventh-Generation (7G) standards, etc. ) , Institute of Electrical and Electronics Engineers (IEEE) standards (e.g., Wireless Metropolitan Area Network (WMAN) , Worldwide Interoperability for Microwave Access (WiMAX) , etc. ) , and more.
[0104] As shown, UEs 1010 may include smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more wireless communication networks) . Additionally, or alternatively, UEs 1010 may include other types of mobile or non-mobile computing devices capable of wireless communications, such as personal data assistants (PDAs) , pagers, laptop computers, desktop computers, wireless handsets, smartwatches, etc. In some implementations, UEs 1010 may include internet of things (IoT) devices (or IoT UEs) that may include a network access layer designed for low-power IoT applications utilizing short-lived UE connections. Additionally, or alternatively, an IoT UE may utilize one or more types of technologies, such as machine-to-machine (M2M) communications or machine-type communications (MTC) (e.g., to exchanging data with an MTC server or other device via a public land mobile network (PLMN) ) , proximity-based service (ProSe) or device-to-device (D2D) communications, sensor networks, IoT networks, and more. Depending on the scenario, an M2M or MTC exchange of data may be a machine-initiated exchange, and an IoT network may include interconnecting IoT UEs (which may include uniquely identifiable embedded computing devices within an Internet infrastructure) with short-lived connections. In some scenarios, IoT UEs may execute background applications (e.g., keep-alive messages, status updates, etc. ) to facilitate the connections of the IoT network.
[0105] The connection may include an M2M connection, MTC connection, D2D connection, SL connection, etc. The connection may involve a PC5 interface. In some implementations, UEs 1010 may be configured to discover one another, negotiate wireless resources between one another, and establish connections between one another, without intervention or communications involving RAN node 1022 or another type of network node. In some implementations, discovery, authentication, resource negotiation, registration, etc., may involve communications with RAN node 1022 or another type of network node.
[0106] UEs 1010 may use one or more wireless (e.g., sidelink (SL) ) connections 1012 to communicate with one another. As described herein, UE 1010-1 may communicate with RAN node 1022 to request SL resources. RAN node 1022 may respond to the request by providing UE 1010 with a dynamic grant (DG) or configured grant (CG) regarding SL resources. A DG may involve a grant based on a grant request from UE 1010. A CG may involve a resource grant without a grant request and may be based on a type of service being provided (e.g., services that have strict timing or latency requirements) . UE 1010 may perform a clear channel assessment (CCA) procedure based on the DG or CG, select SL resources based on the CCA procedure and the DG or CG; and communicate with another (e.g., peer) UE 1010 based on the SL resources. The UE 1010 may communicate with RAN node 1022 using a licensed frequency band and communicate with the other UE 1010 using an unlicensed frequency band. In some examples, one UE 1010 (e.g., UE 1010-1) may be a transmitting UE (TX UE) , and the other UE (e.g., UE 1010-2) may be a receiving UE (RX UE) .
[0107] UEs 1010 may communicate and establish a connection (e.g., be communicatively coupled) with RAN 1020, which may involve one or more wireless channels 1014-1 and 1014-2, each of which may include a physical communications interface / layer.
[0108] A PC5 Quality of Service (QoS) identifier (PQI) may be determined and used to indicate a QoS associated with a Sidelink at Unlicensed Band (SL-U) communication (e.g., a channel, data flow, etc. ) . Similarly, a Layer 1 (L1) priority value may be determined and used to indicate a priority of an SL-U transmission, SL-U channel, SL-U data, etc. The PQI and / or L1 priority value may be mapped to a Channel Access Priority Class (CAPC) value, and the PQI, L1 priority, and / or CAPC may indicate SL channel occupancy time (COT) sharing, maximum COT (MCOT) , timing gaps for COT sharing, Listen Before Talk (LBT) configuration, traffic and channel priorities, and more.
[0109] As shown, UE 1010 may also, or alternatively, connect to access point (AP) 1016 via connection interface 1018, which may include an air interface enabling UE 1010 to communicatively couple with AP 1016. AP 1016 may include a wireless local area network (WLAN) , WLAN node, WLAN termination point, etc. The connection interface 1018 may include a local wireless connection, such as a connection consistent with any IEEE 702.11 protocol, and AP 1016 may include a wireless fidelity router or other AP. While not explicitly depicted in FIG. 10, AP 1016 may be connected to another network (e.g., the Internet) without connecting to RAN 1020 or CN 1030.
[0110] RAN 1020 may include one or more RAN nodes 1022-1 and 1022-2 (referred to collectively as RAN nodes 1022, and individually as RAN node 1022) that enable channels 1014-1 and 1014-2 to be established between UEs 1010 and RAN 1020. RAN nodes 1022 may include network access points configured to provide radio baseband functions for data and / or voice connectivity between users and the network based on one or more of the communication technologies described herein (e.g., 2G, 3G, 4G, 5G, WiFi, etc. ) . As examples, therefore, a RAN node may be an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (e.g., an enhanced Node B, eNodeB, eNB, 4G base station, etc. ) , a next-generation base station (e.g., a 5G base station, NR base station, next-generation eNBs (gNB) , etc. ) . RAN nodes 1022 may include a roadside unit (RSU) , a transmission reception point (TRxP or TRP) , and one or more other types of ground stations (e.g., terrestrial access points) . In some scenarios, RAN node 1022 may be a dedicated physical device, such as a macrocell base station, and / or a low power (LP) base station for providing femtocells, picocells, or the like having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells. Additionally, or alternatively, one or more of RAN nodes 1022 can be next generation eNBs (i.e., gNBs) that can provide E-UTRA user plane and control plane protocol terminations 1026, 1028 toward UEs 1010, and that can be connected to a 5G core network (5GC) 1030 via an NG interface 1024.
[0111] Any of the RAN nodes 1022 can terminate an air interface protocol and can be the first point of contact for UEs 1010. In some implementations, any of the RAN nodes 1022 can fulfill various logical functions for the RAN 1020, including, but not limited to, radio network controller (RNC) functions, such as radio bearer management, uplink and downlink dynamic radio resource management and data packet scheduling, and mobility management. UEs 210 can be configured to communicate using orthogonal frequency-division multiplexing (OFDM) communication signals with each other or with any of the RAN nodes 1022 over a multicarrier communication channel in accordance with various communication techniques, such as, but not limited to, an orthogonal frequency-division multiple-access (OFDMA) communication technique (e.g., for downlink communications) or a single-carrier frequency-division multiple-access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink (SL) communications) , although the scope of such implementations is not necessarily limited in this regard. The OFDM signals can include a plurality of orthogonal subcarriers.
[0112] In some implementations, a downlink resource grid may be used for downlink transmissions from any of the RAN nodes 1022 to UEs 1010, and uplink transmissions may utilize similar techniques. The grid may be a time-frequency grid (e.g., a resource grid or time-frequency resource grid) that represents the physical resource for downlink in each slot. Such a time-frequency plane representation is a common practice for OFDM systems, which makes it intuitive for radio resource allocation. Each column and each row of the resource grid corresponds to one OFDM symbol and one OFDM subcarrier, respectively. The duration of the resource grid in the time domain corresponds to one slot in a radio frame. The smallest time-frequency unit in a resource grid is denoted as a resource element (RE) . Each resource grid includes resource blocks (RBs) , which describe the mapping of certain physical channels to resource elements. Each RB may include a collection of REs; in the frequency domain, this may represent the smallest quantity of resources that currently may be allocated. There are several different physical downlink channels that are conveyed using such RBs.
[0113] The RAN nodes 1022 may be configured to communicate with one another via interface 1023. In implementations where the system is an LTE system, interface 1023 may be an X2 interface. In NR systems, interface 1023 may be an Xn interface. The X2 interface may be defined between two or more RAN nodes 1022 (e.g., two or more eNBs / gNBs or a combination thereof) that connect to Evolved Packet Core (EPC) or CN 1030, or between two eNBs connecting to an EPC.
[0114] CN 1030 may include a plurality of network elements 1032, which are configured to offer various data and telecommunications services to customers / subscribers (e.g., users of UEs 1010) who are connected to the CN 1030 via the RAN 1020. In some implementations, CN 1030 may include an EPC, a 5G CN, and / or one or more additional or alternative types of CNs. The components of the CN 1030 may be implemented in one physical node or separate physical nodes including components to read and execute instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) .
[0115] As shown, CN 1030, application servers 1040, and external networks 1050 may be connected to one another via interfaces 1034, 1036, and 1038, which may include IP network interfaces.
[0116] FIG. 11 is a diagram of an example of components of a wireless communication device according to one or more implementations described herein. In some implementations, the device 1100 can include application circuitry 1102, baseband circuitry 1104, RF circuitry 1106, front-end module (FEM) circuitry 1108, one or more antennas 1110, and power management circuitry (PMC) 1112 coupled together at least as shown. The components of the illustrated device 1100 can be included in a UE or a RAN node. In some implementations, the device 1100 can include fewer elements (e.g., a RAN node may not utilize application circuitry 1102, and instead include a processor / controller to process IP data received from a CN or an Evolved Packet Core (EPC) ) . In some implementations, the device 1100 can include additional elements such as, for example, memory / storage, display, camera, sensor (including one or more temperature sensors, such as a single temperature sensor, a plurality of temperature sensors at different locations in device 1100, etc. ) , or input / output (I / O) interface. In other implementations, the components described below can be included in more than one device (e.g., said circuitries can be separately included in more than one device for Cloud-RAN (C- RAN) implementations) .
[0117] The application circuitry 1102 can include one or more application processors. For example, the application circuitry 1102 can include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor (s) can include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application processors, etc. ) . The processors can be coupled with or can include memory / storage and can be configured to execute instructions stored in the memory / storage to enable various applications or operating systems to run on the device 1100. In some implementations, processors of application circuitry 1102 can process IP data packets received from an EPC.
[0118] The baseband circuitry 1104 can include circuitry such as, but not limited to, one or more single-core or multi-core processors. The baseband circuitry 1104 can include one or more baseband processors or control logic to process baseband signals received from a receive signal path of the RF circuitry 1106 and to generate baseband signals for a transmit signal path of the RF circuitry 1106. Baseband circuitry 1104 can interface with the application circuitry 1102 for generation and processing of the baseband signals and for controlling operations of the RF circuitry 1106. For example, in some implementations, the baseband circuitry 1104 can include a 3G baseband processor 1104A, a 4G baseband processor 1104B, a 5G baseband processor 1104C, or other baseband processor (s) 1104D for other existing generations, generations in development or to be developed in the future (e.g., 5G, 6G, etc. ) .
[0119] The baseband circuitry 1104 (e.g., one or more of baseband processors 1104A-D) can handle various radio control functions that enable communication with one or more radio networks via the RF circuitry 1106. In other implementations, some or all of the functionality of baseband processors 1104A-D can be included in modules (e.g., sets of executable instructions) stored in the memory 1104G or other machine-readable or computer-readable medium (e.g., a non-transitory machine-readable or computer-readable storage medium) and executed via a Central Processing Unit (CPU) 1104E or another type of processor (e.g., a reduced instruction set computing (RISC) processor, a complex instruction set computing (CISC) processor, a graphics processing unit (GPU) , a digital signal processor (DSP) such as a baseband processor, an application-specific integrated circuit (ASIC) , a radio-frequency integrated circuit (RFIC) , another processor, or any suitable combination thereof) .
[0120] The radio control functions can include, but are not limited to, signal modulation / demodulation, encoding / decoding, radio frequency shifting, etc. In some implementations, modulation / demodulation circuitry of the baseband circuitry 1104 can include Fast-Fourier Transform (FFT) , precoding, or constellation mapping / de-mapping functionality. In some implementations, encoding / decoding circuitry of the baseband circuitry 1104 can include convolution, tail-biting convolution, turbo, Viterbi, or Low-Density Parity Check (LDPC) encoder / decoder functionality. Implementations of modulation / demodulation and encoder / decoder functionality are not limited to these examples and can include other suitable functionality in other implementations.
[0121] In some implementations, the baseband circuitry 1104 can include one or more audio digital signal processor (s) (DSP) 1104F. The audio DSPs 1104F can include elements for compression / decompression and echo cancellation and can include other suitable processing elements in other implementations. Components of the baseband circuitry 1104 can be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some implementations. In some implementations, some or all of the constituent components of the baseband circuitry 1104 and the application circuitry 1102 can be implemented together such as, for example, on a system-on-a-chip (SOC) .
[0122] In some implementations, the baseband circuitry 1104 can provide for communication compatible with one or more radio technologies. For example, in some implementations, the baseband circuitry 1104 can support communication with an NG-RAN, an E-UTRAN or other wireless metropolitan area networks (WMAN) , a wireless local area network (WLAN) , a wireless personal area network (WPAN) , etc. Implementations in which the baseband circuitry 1104 is configured to support radio communications of more than one wireless protocol can be referred to as multi-mode baseband circuitry.
[0123] RF circuitry 1106 can embody an RF transceiver that enables communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various implementations, the RF circuitry 1106 can include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. RF circuitry 1106 can include a receive signal path which can include circuitry to down-convert RF signals received from the FEM circuitry 1108 and provide baseband signals to the baseband circuitry 1104. RF circuitry 1106 can also include a transmit signal path which can include circuitry to up-convert baseband signals provided by the baseband circuitry 1104 and provide RF output signals to the FEM circuitry 1108 for transmission.
[0124] In some implementations, the receive signal path of the RF circuitry 1106 can include mixer circuitry 1106A, amplifier circuitry 1106B, and filter circuitry 1106C. RF circuitry 1106 can also include synthesizer circuitry 1106D for synthesizing a frequency for use by the mixer circuitry 1106A of the receive signal path and the transmit signal path.
[0125] The RF circuitry 1106 can include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry, and the baseband circuitry 1104 can include a digital baseband interface to communicate with the RF circuitry 1106.
[0126] Synthesizer circuitry 1106D of the RF circuitry 1106 can include a divider, a delay-locked loop (DLL) , a multiplexer, and a phase accumulator.
[0127] FEM circuitry 1108 can include a receive signal path which can include circuitry configured to operate on RF signals received from one or more antennas 1110, amplify the received signals, and provide the amplified versions of the received signals to the RF circuitry 1106 for further processing. FEM circuitry 1108 can also include a transmit signal path which can include circuitry configured to amplify signals for transmission provided by the RF circuitry 1106 for transmission by one or more of the one or more antennas 1110. In various implementations, the amplification through the transmit and / or receive signal paths can be done solely in the RF circuitry 1106, solely in the FEM circuitry 1108, or in both the RF circuitry 1106 and the FEM circuitry 1108.
[0128] In some implementations, the FEM circuitry 1108 can include a TX / RX switch to switch between transmit mode and receive mode operation. The FEM circuitry can include a receive signal path and a transmit signal path. The receive signal path of the FEM circuitry can include an LNA to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry 1106) . The transmit signal path of the FEM circuitry 1108 can include a power amplifier (PA) to amplify input RF signals (e.g., provided by RF circuitry 1106) , and one or more filters to generate RF signals for subsequent transmission (e.g., by one or more of the one or more antennas 1110) .
[0129] Processors of the application circuitry 1102 and processors of the baseband circuitry 1104 can be used to execute elements of one or more instances of a protocol stack. For example, processors of the baseband circuitry 1104, alone or in combination, can be used to execute Layer 3, Layer 2, or Layer 1 functionality, while processors of the baseband circuitry 1104 can utilize data (e.g., packet data) received from these layers and further execute Layer 4 functionality (e.g., transmission communication protocol (TCP) and user datagram protocol (UDP) layers) . As referred to herein, Layer 3 can include a radio resource control (RRC) layer, described in further detail below. As referred to herein, Layer 2 can include a medium access control (MAC) layer, a radio link control (RLC) layer, and a Packet Data Convergence Protocol (PDCP) layer, described in further detail below. As referred to herein, Layer 1 can include a physical (PHY) layer of a UE / RAN node.
[0130] In some implementations, the PMC 1112 can manage power provided to the baseband circuitry 1104. In particular, the PMC 1112 can control power-source selection, voltage scaling, battery charging, or DC-to-DC conversion. The PMC 1112 can often be included when the device 1100 is capable of being powered by a battery, for example, when the device is included in a UE. The PMC 1112 can increase the power conversion efficiency while providing desirable implementation size and heat dissipation characteristics.
[0131] While FIG. 11 shows the PMC 1112 coupled only with the baseband circuitry 1104, in other implementations, the PMC 1112 may be additionally or alternatively coupled with, and perform similar power management operations for, other components such as, but not limited to, application circuitry 1102, RF circuitry 1106, or FEM circuitry 1108.
[0132] In some implementations, the PMC 1112 can control, or otherwise be part of, various power saving mechanisms of the device 1100. For example, if the device 1100 is in an RRC_CONNECTED state, where it is still connected to the RAN node as it expects to receive traffic shortly, then it can enter a state known as Discontinuous Reception (DRX) mode after a period of inactivity. During this state, the device 1100 can power down for brief intervals of time and thus save power.
[0133] If there is no data traffic activity for an extended period of time, then the device 1100 can transition off to an RRC_IDLE state, where it disconnects from the network and does not perform operations such as channel quality feedback, handover, etc. The device 1100 goes into a very low power state and it performs paging where again it periodically wakes up to listen to the network and then powers down again. The device 1100 may not receive data in this state; in order to receive data, it can transition back to the RRC_CONNECTED state.
[0134] The baseband circuitry 1104, or the one or more baseband processors or control logic of the baseband circuitry 1104, may stand alone as the UE 210 or the BS 222 of FIG. 2 perform signaling and operation in the meaning as described throughout this disclosure.
[0135] Examples herein can include subject matter such as a method, means for performing acts or blocks of the method, at least one machine-readable medium including executable instructions that, when performed by a machine (e.g., a processor with memory, an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) , or the like) cause the machine to perform acts of the method or of an apparatus or system for concurrent communication using multiple communication technologies according to implementations and examples described.
[0136] In this regard, while the disclosed subject matter has been described in connection with various examples, implementations, aspects, etc., and corresponding Figures, where applicable, it is to be understood that other similar aspects can be used or modifications and additions can be made to the disclosed subject matter for performing the same, similar, alternative, or substitute function of the subject matter without deviating therefrom. Therefore, the disclosed subject matter should not be limited to any single example, implementation, or aspect described herein, but rather should be construed in breadth and scope in accordance with the appended claims below.
[0137] In particular regard to the various functions performed by the above-described components or structures (assemblies, devices, circuits, systems, etc. ) , the terms (including a reference to a “means” ) used to describe such components are intended to correspond, unless otherwise indicated, to any component or structure which performs the specified function of the described component (e.g., that is functionally equivalent) , even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations. In addition, while a particular feature may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for any given application.
[0138] As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or” . That is, unless specified otherwise, or clear from context, “X employs A or B” is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then “X employs A or B” is satisfied under any of the foregoing instances. In addition, the articles “a” and “an” as used in this application and the appended claims should generally be construed to mean “one or more” unless specified otherwise or clear from context to be directed to a singular form. Furthermore, to the extent that the terms “including” , “includes” , “having” , “has” , “with” , or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term “comprising. ” Additionally, in situations wherein one or more numbered items are discussed (e.g., a “first X” , a “second X” , etc. ) , in general the one or more numbered items can be distinct, or they can be the same, although in some situations the context may indicate that they are distinct or that they are the same.
[0139] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.
Claims
1.A baseband processor configured to perform operations comprising:receiving, using one of a first receiver circuit or a second receiver circuit of a user equipment (UE) , a first transmission over a first component carrier (CC) and a second transmission over a second CC by switching between the first CC and the second CC, wherein an imbalance ratio in received power between the first transmission and the second transmission is less than a first threshold ratio,a difference in receive time between the first transmission and the second transmission is less than a first threshold time difference, anda frequency separation between the first CC and the second CC is greater than a first frequency separation threshold and less than a second frequency separation threshold; andreceiving, using another of the first receiver circuit or the second receiver circuit, a third transmission over a third CC during the first transmission and the second transmission.2.The baseband processor of claim 1, wherein an imbalance ratio in received power between the third transmission and at least one of the first transmission or the second transmission is greater than the first threshold ratio and less than a second threshold ratio.3.The baseband processor of claim 1, wherein a difference in reception time between the third transmission and at least one of the first transmission or the second transmission is greater than the first threshold time difference and less than a second threshold time difference.4.The baseband processor of claim 1, wherein a frequency separation between the third transmission and at least one of the first transmission or the second transmission is greater than the second frequency separation threshold.5.The baseband processor of claim 1, wherein the operations further comprise:measuring a reference signal received power (RSRP) of each of the first CC, the second CC, and the third CC;causing transmission of RSRP indications of the RSRP of each of the first CC, the second CC, and the third CC;measuring a system frame number (SFN) and frame timing difference (SFTD) of each of the first CC, the second CC, and the third CC;causing transmission of SFTD indications of the SFTD of each of the first CC, the second CC, and the third CC;receiving configuration information based on the RSRP indications, the SFTD indications, and frequency separation information associated with the first CC, the second CC, and the third CC, the configuration information allocating the first CC and the second CC to the one of the first receiver circuit or the second receiver circuit and allocating the third CC to the other of the first receiver circuit or the second receiver circuit; andallocating the first CC, the second CC, and the third CC to be received using the first receiver circuit and the second receiver circuit based on the configuration information.6.The baseband processor of claim 5, wherein the RSRP indications comprise the RSRP of each of the first CC, the second CC, and the third CC.7.The baseband processor of claim 5, wherein the RSRP indications comprise:the RSRP of one of the first CC, the second CC, or the third CC that is a highest RSRP of the RSRPs associated with the first CC, the second CC, and the third CC; anda difference between the highest RSRP and the RSRP of each of remaining ones of the first CC, the second CC, and the third CC.8.The baseband processor of claim 5, wherein the SFTD indications comprise the SFTD of each of the first CC, the second CC, and the third CC.9.The baseband processor of claim 8, wherein an SFTD associated with a primary cell (PCell) corresponding with one of the first CC, the second CC, or the third CC is zero.10.The baseband processor of claim 5, wherein the operations further comprise:receiving, in response to receiving the configuration information, scheduling information for the first CC, the second CC, and the third CC.11.The baseband processor of claim 1, wherein the operations further comprise:receiving event configuration information indicating one or more conditions for one or more events, the event configuration information comprising one or more reference signal received power (RSRP) threshold values and one or more system frame number (SFN) and frame timing difference (SFTD) threshold values for the first CC, the second CC, and the third CC;monitoring, based on the event configuration information, the first CC, the second CC, and the third CC for the one or more conditions; anddetermining, based on the one or more conditions, an occurrence of at least one of the one or more events.12.The baseband processor of claim 11, wherein the operations further comprise:performing, based on the occurrence of at least one of the one or more events, a configuration of at least one of the first receiver circuit or the second receiver circuit to receive transmissions over one or more of the first CC, the second CC, or the third CC; andcausing transmission of an indication of the configuration.13.The baseband processor of claim 12, wherein the operations further comprise:receiving, in response to transmitting the indication of the configuration, scheduling information for the first CC, the second CC, and the third CC.14.The baseband processor of claim 11, wherein the operations further comprise:causing transmission of an indication of the occurrence of the at least one of the one or more events;receiving, based on the indication of the occurrence of the at least one of the one or more events, an indication of a configuration of at least one of the first receiver circuit or the second receiver circuit to receive transmissions over one or more of the first CC, the second CC, or the third CC; andperforming the configuration of the at least one of the first receiver circuit or the second receiver circuit.15.The baseband processor of claim 14, wherein the operations further comprise:receiving, after performing the configuration, scheduling information for the first CC, the second CC, and the third CC.16.A method for a user equipment (UE) , the method comprising:determining for one of a first receiver circuit or a second receiver circuit of the UE to receive a first transmission over a first component carrier (CC) and a second transmission over a second CC to facilitate switching between the first CC and the second CC, whereinan imbalance ratio in received power between the first transmission and the second transmission is less than a first threshold ratio,a difference in receive time between the first transmission and the second transmission is less than a first threshold time difference, anda frequency separation between the first CC and the second CC is greater than a first frequency separation threshold and less than a second frequency separation threshold;determining for another of the first receiver circuit or the second receiver circuit to receive a third transmission over a third CC during the first transmission and the second transmission;receiving the first transmission and the second transmission using the first receiver circuit; andreceiving the third transmission using the second receiver circuit.17.The method of claim 16, wherein at least one of:an imbalance ratio in received power between the third transmission and at least one of the first transmission or the second transmission is greater than the first threshold ratio and less than a second threshold ratio;a difference in reception time between the third transmission and at least one of the first transmission and the second transmission is greater than the first threshold time difference and less than a second threshold time difference; ora frequency separation between the third transmission and at least one of the first transmission and the second transmission is greater than the second frequency separation threshold.18.A processor configured to perform operations comprising:causing a first transmission over a first component carrier (CC) and a second transmission over a second CC to a user equipment (UE) by switching between the first CC and the second CC, whereinan imbalance ratio in received power between the first transmission and the second transmission at the UE is less than a first threshold ratio,a difference in receive time between the first transmission and the second transmission at the UE is less than a first threshold time difference, anda frequency separation between the first CC and the second CC is greater than a first frequency separation threshold and less than a second frequency separation threshold; andcausing a third transmission to the UE over a third CC during the first transmission and the second transmission.19.The processor of claim 18, wherein at least one of:an imbalance ratio in received power between the third transmission and at least one of the first transmission or the second transmission at the UE is greater than the first threshold ratio and less than a second threshold ratio;a difference in reception time between the third transmission and at least one of the first transmission and the second transmission at the UE is greater than the first threshold time difference and less than a second threshold time difference; ora frequency separation between the third transmission and at least one of the first transmission and the second transmission is greater than the second frequency separation threshold.20.The processor of claim 18, wherein the operations further comprise:receiving, from the UE, reference signal received power (RSRP) indications of an RSRP of each of the first CC, the second CC, and the third CC;receiving, from the UE, system frame number (SFN) and frame timing difference (SFTD) indications of an SFTD of each of the first CC, the second CC, and the third CC;causing transmission, to the UE, of configuration information based on the RSRP indications, the SFTD indications, and frequency separation information associated with the first CC, the second CC, and the third CC, the configuration information allocating the first CC and the second CC to the one of a first receiver circuit or a second receiver circuit of the UE and allocating the third CC to another of the first receiver circuit or the second receiver circuit; andcausing transmission, to the UE after causing the transmission of the configuration information, of scheduling information for the first CC, the second CC, and the third CC.21.The processor of claim 18, wherein the operations further comprise:causing transmission, to the UE, of event configuration information indicating one or more conditions for one or more events, the event configuration information comprising one or more reference signal received power (RSRP) threshold values and one or more system frame number (SFN) and frame timing difference (SFTD) threshold values for the first CC, the second CC, and the third CC;receiving, from the UE in response to the event configuration information, an indication of a configuration of at least one of a first receiver circuit or a second receiver circuit of the UE to receive transmissions over one or more of the first CC, the second CC, or the third CC; andcausing transmission, to the UE in response to the indication of the configuration, of scheduling information for the first CC, the second CC, and the third CC.22.The processor of claim 18, wherein the operations further comprise:causing transmission, to the UE, of event configuration information indicating one or more conditions for one or more events, the event configuration information comprising one or more reference signal received power (RSRP) threshold values and one or more system frame number (SFN) and frame timing difference (SFTD) threshold values for the first CC, the second CC, and the third CC;receiving, from the UE, a transmission of an indication of an occurrence of at least one of the one or more events;causing transmission, to the UE based on the indication of the occurrence of the at least one of the one or more events, an indication of a configuration of at least one of a first receiver circuit or a second receiver circuit of the UE to receive transmissions over one or more of the first CC, the second CC, or the third CC; andcausing transmission, to the UE after causing transmission of the indication of the configuration, of scheduling information for the first CC, the second CC, and the third CC.
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