Adaptation of receiving modes for devices that support multi-receiver chains

Abstract

A system, method, apparatus, and computer program product for a multi-receive chain UE may include receiving, from a serving cell, at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode, transmitting to the serving cell a notification that the at least one multi-receive chain user equipment mode is preferred, and receiving, from the serving cell, a notification that the preferred at least one multi-receive chain user equipment mode is active in response to transmitting the notification that the at least one multi-receive chain user equipment mode is preferred.

Description

[Technical Field]

[0001] Some exemplary embodiments relate generally to mobile or wireless telecommunications systems, such as Long Term Evolution (LTE), Fifth Generation (5G) Radio Access Technology (RAT), New Radio (NR) access technology, Sixth Generation (6G), and / or other communications systems. For example, certain exemplary embodiments relate to systems and / or methods for multi-receive (Rx) chain UEs. [Background technology]

[0002] Examples of mobile communication systems or wireless communication systems include radio frequency (RF) 5G RAT, Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN), LTE Evolved UTRAN (E-UTRAN), LTE-Advanced (LTE-A), LTE-A Pro, NR access technology, and / or MultiFire Alliance. 5G radio system refers to the next-generation (NG) radio system and network architecture. 5G systems are typically built on 5G NR, but 5G (or NG) networks may also be built on E-UTRA radio. NR is expected to support service categories such as enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-based communications (mMTC). NR is expected to provide extreme broadband, ultra-robust and low-latency connectivity, and massive networking to support the Internet of Things (IoT). Next-generation radio access network (NG-RAN) refers to the RAN in 5G and may provide NR, LTE, and LTE-A radio access. It should be noted that a 5G node (e.g., similar to a Node B in UTRAN or an Evolved Node B (eNB) in LTE) that provides radio access functionality to user equipment may be referred to as a Next Generation Node B (gNB) if built with NR radios, or as a Next Generation eNB (NG-eNB) if built with E-UTRA radios. Summary of the Invention

[0003] In some example embodiments, a method may include receiving, from a serving cell, at least one radio resource control configuration or device capability report signal associated with at least one multi-reception chain user equipment mode. The method may further include transmitting, to the serving cell, a notification that the at least one multi-reception chain user equipment mode is preferred. The method may further include, in response to transmitting the notification that the at least one multi-reception chain user equipment mode is preferred, receiving, from the serving cell, a notification that at least one preferred multi-reception chain user equipment mode is in operation.

[0004] According to certain exemplary embodiments, an apparatus may comprise means for receiving at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode from a serving cell. The apparatus may further comprise means for transmitting a notification to the serving cell that the at least one multi-receive chain user equipment mode is preferred. The apparatus may further comprise means for receiving a notification from the serving cell that the preferred at least one multi-receive chain user equipment mode is active in response to transmitting the notification that the at least one multi-receive chain user equipment mode is preferred.

[0005] In various exemplary embodiments, a non-transitory computer-readable medium is provided that includes program instructions that, when executed by an apparatus, cause the apparatus to perform at least a method. The method may include receiving, from a serving cell, at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode. The method may further include transmitting, to the serving cell, a notification that the at least one multi-receive chain user equipment mode is preferred. The method may further include, in response to transmitting the notification that the at least one multi-receive chain user equipment mode is preferred, receiving, from the serving cell, a notification that the preferred at least one multi-receive chain user equipment mode is active.

[0006] In some exemplary embodiments, a computer program product may perform a method. The method may include receiving, from a serving cell, at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode. The method may further include transmitting, to the serving cell, a notification that the at least one multi-receive chain user equipment mode is preferred. The method may further include, in response to transmitting the notification that the at least one multi-receive chain user equipment mode is preferred, receiving, from the serving cell, a notification that the preferred at least one multi-receive chain user equipment mode is active.

[0007] In certain exemplary embodiments, an apparatus may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause at least the apparatus to receive from a serving cell at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode. The at least one memory and instructions, when executed by the at least one processor, at least cause the apparatus to transmit a notification to the serving cell that the at least one multi-receive chain user equipment mode is preferred. The at least one memory and instructions, when executed by the at least one processor, cause at least the apparatus to receive from the serving cell a notification that the preferred at least one multi-receive chain user equipment mode is active in response to transmitting the notification that the at least one multi-receive chain user equipment mode is preferred.

[0008] According to various exemplary embodiments, an apparatus may comprise a receiving circuit configured to perform receiving at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode from a serving cell. The apparatus may further include a transmitting circuit configured to transmit a notification to the serving cell that the at least one multi-receive chain user equipment mode is preferred. The apparatus may further include a receiving circuit configured to perform receiving a notification from the serving cell that the preferred at least one multi-receive chain user equipment mode is active in response to receiving the notification that the at least one multi-receive chain user equipment mode is preferred.

[0009] A method in some example embodiments may include transmitting at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode to a user equipment. The method may further include receiving, from the user equipment, a notification that the at least one multi-receive chain user equipment mode is preferred. In response to receiving the notification that the at least one multi-receive chain user equipment mode is preferred, the method may further include transmitting, to the user equipment, a notification that the preferred at least one multi-receive chain user equipment mode is active.

[0010] According to certain exemplary embodiments, an apparatus may include means for transmitting at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode to a user equipment. The apparatus may further include means for receiving a notification from the user equipment that the at least one multi-receive chain user equipment mode is preferred. The apparatus may further comprise means for, in response to receiving the notification that the at least one multi-receive chain user equipment mode is preferred, transmitting a notification to the user equipment that the preferred at least one multi-receive chain user equipment mode is active.

[0011] According to various exemplary embodiments, a non-transitory computer-readable medium is provided that includes program instructions that, when executed by an apparatus, cause the apparatus to perform at least a method. The method may include transmitting at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode to the user equipment. The method may further include receiving, from the user equipment, a notification that the at least one multi-receive chain user equipment mode is preferred. The method may further include, in response to receiving the notification that the at least one multi-receive chain user equipment mode is preferred, transmitting, to the user equipment, a notification that the preferred at least one multi-receive chain user equipment mode is active.

[0012] In some exemplary embodiments, a computer program product may execute a method. The method may include transmitting at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode to a user equipment. The method may further include receiving, from the user equipment, a notification that the at least one multi-receive chain user equipment mode is preferred. The method may further include, in response to receiving the notification that the at least one multi-receive chain user equipment mode is preferred, transmitting, to the user equipment, a notification that the preferred at least one multi-receive chain user equipment mode is active.

[0013] According to certain exemplary embodiments, an apparatus may comprise at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause a user equipment to transmit at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode. The at least one memory and instructions, when executed by the at least one processor, cause the apparatus to receive, from at least the user equipment, a notification that the at least one multi-receive chain user equipment mode is preferred. The at least one memory and instructions, when executed by the at least one processor, further cause the apparatus to, in response to receiving the notification that the at least one multi-receive chain user equipment mode is preferred, transmit, to the user equipment, a notification that the preferred at least one multi-receive chain user equipment mode is active.

[0014] In various exemplary embodiments, the apparatus may comprise a transmitting circuit configured to transmit at least one radio resource control setting associated with at least one multi-receive chain user equipment mode to a user equipment. The apparatus may further comprise a receiving circuit configured to receive a notification from the user equipment that the at least one multi-receive chain user equipment mode is preferred. The apparatus may further comprise a transmitting circuit configured to, in response to receiving the notification that the at least one multi-receive chain user equipment mode is preferred, transmit a notification to the user equipment that the preferred at least one multi-receive chain user equipment mode is active. [Brief explanation of the drawings]

[0015] For a proper understanding of the exemplary embodiments, please refer to the accompanying drawings. [Figure 1] FIG. 1 shows an example of the operation of a single Rx chain UE. [Figure 2] FIG. 2 shows an example of a multi-Rx chain UE. [Figure 3] Figure 3 shows examples of some potential receiving modes for a multi-Rx capable UE beam. [Figure 4] FIG. 4 illustrates an example signaling diagram according to an exemplary embodiment. [Figure 5] FIG. 5 illustrates an example signaling diagram showing data transmission during measurements and measurement gaps / scheduling restrictions, in accordance with some exemplary embodiments. [Figure 6] FIG. 6 illustrates an example signaling diagram illustrating data transmission with concurrent measurements in accordance with various exemplary embodiments. [Figure 7] FIG. 7 illustrates an example signaling diagram showing data transmission and interruptions during measurements, according to an exemplary embodiment. [Figure 8] FIG. 8 is a diagram illustrating an example of UE-initiated mode adaptation, according to some exemplary embodiments. [Figure 9] FIG. 9 illustrates an example RRC-based implementation of a UE-triggered mode change, according to various exemplary embodiments. [Figure 10] FIG. 10 is a diagram illustrating an example of a particular network device in accordance with some exemplary embodiments. [Figure 11] FIG. 11 illustrates an example of a 5G network and system architecture according to some exemplary embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0016] It will be readily understood that the components of certain exemplary embodiments, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of several exemplary embodiments of systems, methods, apparatuses, and computer program products for multi-Rx chain UEs is not intended to limit the scope of the particular exemplary embodiments, but instead is representative of selected exemplary embodiments.

[0017] Because a UE's frequency range (FR)2 array is directional, the UE incorporates multiple antenna panels to achieve adequate performance. However, there is not necessarily a one-to-one correspondence between the number of antenna panels and the number of Rx chains on a UE. 3GPP includes a requirement for single-chain UEs, which allow only one FR2 panel to be active at a time. This limitation creates a drawback for neighbor cell measurements because the UE must sweep each panel individually to fully understand its environment. This is illustrated in Figure 1, where a single-chain, four-panel UE may require four consecutive bursts to acquire a single sample. Furthermore, to ensure measurement accuracy, three to five samples may be required per Rx spatial configuration for L1 or L3 measurements.

[0018] Figure 2 shows an example of a multi-Rx chain UE implementation that may improve UE and system performance, including measurement-related latency. As shown in Figure 2, the UE may be implemented with four antenna panels arranged to improve spherical coverage, and two Rx chains are used. The two illustrated Rx chains can be switched between the four panels, so any combination of two panels may be active simultaneously.

[0019] One of the challenges of legacy FR2 UEs is measurement latency due to the UE's Rx scheduling limitations. A legacy FR2 UE may have Rx limitations for performing a single receiving task among L3 measurement (cell search), L1 measurement (beam measurement and management), PDCCH monitoring, PDSCH demodulation, and CSI measurement. The exemplary embodiments herein can address some of these challenges of FR2 by using multiple Rx chains.

[0020] The network can schedule specific signal reception tasks from a single cell or multiple cells / TRPs by considering the UE's Rx capabilities and checking the Rx scheduling availability. Due to the UE's RX scheduling limitations, long latency may occur to execute multiple tasks, such as when task signals overlap or are adjacent in time. While the signals the UE receives from the gNB require some of the listed tasks, the capability of a legacy UE may be limited to executing one task at a time.

[0021] SSBs associated with different repeating PCIs may include two cases. In the first case, the SSBs associated with cells having a different PCI from the serving cell are used for L1-RSRP measurements, and the SSBs configured for serving cell L1 measurements (i.e., L1-RSRP, L1-SINR, RLM, BFR) may be repeated. In the second case, the SSBs associated with cells having a different PCI from the serving cell are used for L1-RSRP measurements, and the SSBs for serving cell L3 measurements (i.e., SSB for SMTC) may be repeated.

[0022] In the case of FR2 Case 1, the RRM requirement may assume that the UE performs L1-RSRP measurements for one cell at a time. In FR2 Case 2, if all SSB measurement opportunities of the cells with PCI are different from the serving cell and SMTC completely overlaps, the RRM requirement may not be specific. In FR2 Case 2, when all SSB measurement opportunities of the cells with a different PCI from the serving cell and SMTC partially overlap, i.e., the SSB periodicity of the cells with different PCI < SMTC periodicity, the RRM requirement is specified assuming that the UE performs L1 measurements on the SSB measurement opportunities of the cells with a different PCI from the serving cell that do not overlap with SMTC.

[0023] Regarding the clear differences between FR1 and FR2 UEs, FR1 UEs can perform most Rx reception from multiple cells, while FR2 UEs may need to repeatedly send messages or reference signals to ensure the network has enough time to perform all tasks one by one and to schedule the UE to complete assigned tasks. The RX scheduling limitations for FR2 UEs may be due to limitations in RX beam steering. FR2 UEs may use a single Rx chain, and because analog beamforming is assumed in FR2, the UE cannot simultaneously monitor multiple beams. As a result, while the UE performs beam sweeping during L1 / L3 measurements, it cannot monitor or demodulate signals from the serving beam used for PDCCH and PDSCH.

[0024] The specific exemplary embodiments in this example may have various advantages and / or merits to overcome the above-mentioned drawbacks. For example, the specific exemplary embodiments may improve power consumption and reduce latency by handling multiple reception and tasks. They may also conserve power by turning off some or all of the RX chains. Therefore, the specific exemplary embodiments described below are intended to improve computer-related technologies.

[0025] The exemplary embodiments described below may include various UE processing modes and notifications per Rx chain that allow the network to control a UE with multiple Rx chains. As noted above, FIG. 2 illustrates a multi-Rx chain UE in a handset, and the same or different tasks may be enabled between the Rx chains. UE tasks may include, for example, L3 measurements (cell search), L1 measurements (beam measurement and management), PDCCH monitoring, PDSCH demodulation, and RRM, demodulation, and CSI as CSI measurements. Various exemplary embodiments may relate to three operating modes for a multi-chain UE and network control of the activation / deactivation of these modes, each of which is described below.

[0026] 4 shows an example of a signaling diagram depicting single chain reception to save power at the UE or to use an additional Rx chain for multi-USIM purposes. The neighboring cells 430 and 440 and the serving cell 410 may be similar to the NE 1010, while the UE 420 may be similar to the UE 1020, as illustrated in FIG. 10 in a particular exemplary embodiment.

[0027] At 401, the serving cell 410 and the UE 420 may exchange RRC configurations related to any combination of the first, second, and third modes.

[0028] At 402, in response to receiving the configuration at 401, the UE 420 may inform the serving cell 410 of a preferred mode corresponding to the first, second, or third mode.

[0029] At 403, the serving cell 410 can send a notification of an operation mode to the UE 420. For example, the operation mode can include being switched by network signaling (e.g., RRC, MAC, DCI) and / or UE implementation. In response to the notification at 403, the UE 420 can enter a preferred mode, and as an example, FIG. 4 illustrates the UE 420 entering a first mode.

[0030] The serving cell 410 and the UE 420 may exchange data according to the preferred mode at 404. Thereafter, a period for performing measurements may begin.

[0031] 5 shows an example signaling diagram illustrating modes for data transmission and measurement gap / scheduling restrictions during measurements. Neighboring cells 540 and 550 and serving cell 520 may, in a particular exemplary embodiment, be similar to NE 1010, while UE 530 may be similar to UE 1020, as shown in FIG. 10. The mode shown in FIG. 5 may be suitable for power saving if such high performance or reduced latency is not required.

[0032] As shown in Figure 3(a), the UE 530 may not need to perform measurements on neighboring cells 540 and 550 and may not need to transmit data simultaneously. Measurement gaps, interruptions, or scheduling restrictions may apply during measurements. Even for a multi-Rx capable UE, this embodiment may be preferred if the UE 530 does not want to keep all of its Rx active, for example, to save power and / or because the UE 530 is monitoring other networks with a Multiple Universal Subscriber Identity Module (MUSIM).

[0033] At 501, the UE 530 may be in a first mode and operating.

[0034] At 502 , the serving cell 520 can exchange data with a first Rx chain of the UE 530 , while at 503 the serving cell 520 can exchange data with a second Rx chain of the UE 530 .

[0035] At 504 , the serving cell 520 can exchange data with a first Rx chain of the UE 530 , while at 505 the serving cell 520 can exchange data with a second Rx chain of the UE 530 .

[0036] At 506, the serving cell 520 initiates gap / scheduling restrictions.

[0037] At 507, neighbor cell 540 may make SSB measurements on the first Rx chain of UE 530, while at 508, neighbor cell 550 may make SSB measurements on the first Rx chain of UE 530.

[0038] At 509, the neighboring cell 540 may perform SSB measurements on the first Rx chain of the UE 530, while at 510 the neighboring cell 550 may transmit SSB measurements to the first Rx chain of the UE 530.

[0039] At 511, the serving cell 520 may end the gap / scheduling restriction that was initiated at 506.

[0040] At 512 , the serving cell 520 can exchange data with a first Rx chain of the UE 530 , and at 513 , the serving cell 520 can exchange data with a second Rx chain of the UE 530 .

[0041] At 514 , the serving cell 520 can exchange data with a first Rx chain of the UE 530 , and at 515 , the serving cell 520 can exchange data with a second Rx chain of the UE 530 .

[0042] 6 shows an example of a signaling diagram illustrating data transmission with simultaneous measurement without gap / scheduling restrictions. Neighboring cells 640 and 650 and serving cell 620 may, in a particular exemplary embodiment, be similar to NE 1010, while UE 630 may be similar to UE 1020, as shown in FIG. 10. UE 630 may receive a data signal from serving cell 620, which may at least partially overlap in time with reference signals (e.g., SSBs) received from neighboring cells 640 and 650.

[0043] As shown in Figures 3(b) and 6, data reception and measurements are expected to occur simultaneously. This mode can reduce the impact of measurements on user data throughput and latency. Because this mode can be used to avoid or minimize scheduling restrictions, the serving cell 620 can have more freedom for its scheduler and achieve better network efficiency. Some embodiments can have the undesirable advantage of not requiring Rx scheduling restrictions. By simultaneously scheduling different resources from multiple cells, latency can be reduced.

[0044] In various exemplary embodiments, a multi-chain Rx may be used for simultaneous reception of data or reference signals from the serving cell 620 or neighboring cells 640 and 650. Multiple Rx chains may be enabled, with each Rx chain capable of simultaneously performing different tasks from a task list. Some Rx chains steered to one cell may perform one or more tasks, while some Rx chains steered to other cells may perform other tasks (e.g., L3 measurements (cell search), L1 measurements (beam measurements and management), PDCCH monitoring, PDSCH demodulation, and CSI measurements). In some exemplary embodiments, one Rx chain may be assigned to process the PDSCH from neighboring cell 640, and another Rx chain may be assigned to process RRM measurements from neighboring cell 650.

[0045] At 601, the UE 630 may enter and operate in a second mode.

[0046] At 602, the serving cell 620 can exchange data with a first Rx chain of the UE 630 and a second Rx chain of the UE 630.

[0047] At 603, the serving cell 620 may exchange data with a first Rx chain of the UE 630, and simultaneously, at 604, the UE 630 may perform SSB measurements (e.g., L3 measurements (cell search), L1 measurements (beam measurements and management), PDCCH monitoring, PDSCH demodulation, and CSI measurements) on a second Rx chain of the UE 630, which at least partially overlap with the data exchanged at 603.

[0048] At 605, the serving cell 620 may exchange data with a first Rx chain of the UE 630, and simultaneously, at 606, the UE 630 may perform SSB measurements (e.g., L3 measurements (cell search), L1 measurements (beam measurements and management), PDCCH monitoring, PDSCH demodulation, and CSI measurements) on a second Rx chain of the UE 630, which at least partially overlap with the data exchanged at 605.

[0049] At 607, the serving cell 620 may exchange data with the first Rx chain of the UE 630 and the second Rx chain of the UE 630.

[0050] 7 shows an example of a signaling diagram depicting data transmission and suspension during measurements. Neighboring cells 740 and 750 and serving cell 720 may, in a particular exemplary embodiment, be similar to NE 1010, while UE 730 may be similar to UE 1020, as illustrated in FIG.

[0051] In various exemplary embodiments, multi-chain reception may be used, for example, to reduce latency, speed up UE Rx processing, or enhance Rx performance. Multiple Rx chains may be enabled by the network or UE implementation, and multiple Rx chains may simultaneously perform the same tasks (e.g., L3 measurements (cell search), L1 measurements (beam measurement and management), PDCCH monitoring, PDSCH demodulation, and CSI measurement). Specifically, an Rx chain may perform RRM measurements, or both Rx chains may perform PDSCH demodulation. To reduce beam sweep time, multiple RX chains may be assigned to simultaneously measure L1-RSRP from a cell. Furthermore, multiple RX chains may be assigned to simultaneously perform RRM measurements of L1-RSRP and L3-RSRP using narrow and wide beams, respectively. Multiple RX chains may also be assigned to the PDSCH / PDCCH from at least one cell to effectively achieve MIMO spatial multiplexing gain. Various exemplary embodiments may provide high-speed processing or high performance by performing the same task on multiple Rx chains, allowing the UE 730 to take advantage of high-speed beam sweeping using multiple RX panels or higher-order MIMO layer configurations using multiple RX panels.

[0052] Some exemplary embodiments may benefit from high-speed processing or high performance by performing the same task with multiple Rx chains. The UE 730 may benefit from high-speed beam sweeping using multiple RX panels or high-order MIMO layer configurations using multiple RX panels.

[0053] Figures 3(c) and 7 show a UE using multiple receiver chains to simultaneously perform measurements on multiple beams. A beam sweeping scaling factor of 8 may be used, and RRM measurements and procedures may be scaled by this factor due to FR2-1 requirements. Using this mode, the UE can perform single measurements faster and periodic measurements more frequently, enabling more reliable measurements of mobility. These measurements can also be performed with the same periodicity, reducing the number of measurement opportunities with interruptions and scheduling limitations, achieving better network efficiency. Furthermore, depending on RRM requirements, a larger scaling factor means that when the UE finishes a measurement, it may have already moved in a way that invalidates the measurement. Therefore, a smaller beam sweeping scaling factor can provide measurements that are more robust to mobility.

[0054] At 701, the UE 730 may enter and operate in a third mode.

[0055] At 702, the serving cell 720 can simultaneously exchange data with a first Rx chain of the UE 730 and a second Rx chain of the UE 730.

[0056] At 703, the serving cell 720 initiates gap / scheduling restrictions.

[0057] At 704, the UE 730 may perform a measurement (e.g., SSB) from a first direction based on an SSB signal from a neighboring cell 740 on a first Rx chain of the UE 730, and simultaneously, the UE 730 may perform a measurement (e.g., SSB) from a second direction based on an SSB signal from a neighboring cell 740 (or other cell) having an SSB signal that at least partially overlaps with the signal of 704 on a second Rx chain of the UE 730.

[0058] At 705, the UE 730 can perform measurements (e.g., SSB) from a first direction based on an SSB signal from a neighboring cell 750 on a first Rx chain of the UE 730, and simultaneously, the UE 730 can perform measurements (e.g., SSB) from a second direction based on an SSB signal from a neighboring cell 750 (or other cell) that has an SSB signal that at least partially overlaps with the signal of 705 on a second Rx chain of the UE 730.

[0059] At 706, the serving cell 720 can terminate the gap / scheduling restriction.

[0060] At 707, the serving cell 720 may exchange data with the first Rx chain of the UE 730 and the second Rx chain of the UE 730.

[0061] 8 shows an example signaling diagram illustrating UE-initiated mode adaptation. Neighboring cells 850 and 860 and serving cell 830 may, in certain exemplary embodiments, be similar to NE 1010, while UE 840 may be similar to UE 1020, as illustrated in FIG.

[0062] FIG. 8 illustrates various embodiments in which a UE may initiate a reception mode adaptation. The network may configure Mode 1 as the default in the UE 830. The UE 830 can trigger this procedure by sending a message containing a preferred mode, and the NE 820 responds by confirming the reception mode change, maintaining it, or falling back to the default mode configuration. If the UE 830 at some point initiates an application requiring high throughput and low latency, the UE 830 can request the network to change the reception mode to Mode 2. If the UE 830 detects a high mobility condition at a certain moment, the UE 830 can trigger a mode change to Mode 3 to ensure that mobility measurements are more accurate. Similarly, if the UE 830 is in the more power-demanding Mode 2 or Mode 3 and needs to conserve power, the UE 830 can fall back to Mode 1.

[0063] In an exemplary embodiment, the UE 830 can determine an application that requires high throughput / high mobility / power saving. For example, if the UE 830 identifies a low battery level, the UE 830 can activate Mode 1 to conserve battery power. Alternatively, the UE 830 can identify an increase in data traffic with demanding QoS requirements, and the UE 830 can activate Mode 2 or Mode 3 to increase throughput by using simultaneous reception on Rx1 and Rx2. Furthermore, if the UE 830 identifies the start of data traffic requiring low latency, the UE 830 can activate Mode 2 to avoid measurement gaps and reduce jitter in data transmission. Furthermore, if the UE 830 identifies that it is moving above a certain speed, the UE 830 can activate Mode 3 to be able to make better mobility decisions.

[0064] 8 shows an example embodiment in which the network configures the same mode as requested by the UE 830. However, there may be situations in which the network cannot configure the UE 830 as requested. For this situation, a fallback state can be assigned, which may be a state configured by the network, such as mode 3, or the implementation method in the standard may have a single default mode, such as mode 1.

[0065] At 801, the UE 840 may activate a first mode, which may be configured as a default mode.

[0066] At 802, the serving cell 830 can simultaneously exchange data with a first Rx chain of the UE 840 and a second Rx chain of the UE 840.

[0067] At 803, neighboring cells 850 and 860 may perform measurements of a first Rx chain of UE 840 and a second Rx chain of UE 840 separately (sequentially) according to a first mode.

[0068] At 804, the serving cell 830 can exchange data simultaneously with a first Rx chain of the UE 840 and a second Rx chain of the UE 840 according to a first mode.

[0069] At 805, neighboring cells 850 and 860 may perform measurements of a first Rx chain of UE 840 and a second Rx chain of UE 840 separately (sequentially) according to a first mode.

[0070] At 806, the UE 840 may send a notification to the serving cell 830 that the second mode is preferred. In various exemplary embodiments, the second mode may require fewer or no scheduling restrictions, thereby improving latency.

[0071] At 807, the serving cell 830 may send a configuration of the second mode to the first Rx chain of the UE 840.

[0072] At 808, the serving cell 830, the neighbor cell 850, and the neighbor cell 860 can simultaneously exchange data with the first and second Rx chains of the UE 840 and perform measurements on the first and second Rx chains of the UE 840.

[0073] At 809, the UE 840 may send a notification to the serving cell 830 that the third mode is preferred. In various exemplary embodiments, the UE 840 may prefer the third mode when faster measurements are required due to extreme mobility of the UE 840.

[0074] At 810, the serving cell 830 may send a configuration for the third mode to the first Rx chain of the UE 840.

[0075] At 810, the first and second Rx chains of the serving cell 830 and the UE 840 may exchange data.

[0076] At 811, the serving cell 830, the neighbor cell 850, and the neighbor cell 860 can simultaneously exchange data with the first and second Rx chains of the UE 840 and perform measurements on the first and second Rx chains of the UE 840.

[0077] At 812, the first and second Rx chains of the serving cell 830 and the UE 840 can exchange data.

[0078] At 813, the serving cell 830, the neighbor cell 850, and the neighbor cell 860 can simultaneously exchange data with the first and second Rx chains of the UE 840 and perform measurements on the first and second Rx chains of the UE 840.

[0079] At 814, the UE 840 may send a notification to the serving cell 830 that it prefers the first mode. In various exemplary embodiments, the UE 840 may prefer the first mode if the UE 840 needs to turn off one Rx faster to save power.

[0080] At 815, the serving cell 830 may send a configuration of the first mode to the first Rx chain of the UE 840.

[0081] At 816, the first and second Rx chains of the serving cell 830 and the UE 840 may exchange data according to the first mode.

[0082] At 817, the serving cell 830, the neighbor cell 850, and the neighbor cell 860 can simultaneously exchange data with the first and second Rx chains of the UE 840 and perform measurements on the first and second Rx chains of the UE 840 according to the first mode.

[0083] 9 shows an example signaling diagram illustrating an RRC-based implementation of a UE-triggered mode change. The serving cell 920 may be similar to the NE 1010, while the UE 910 may be similar to the UE 1020, as shown in FIG.

[0084] In particular, Figure 9 illustrates an embodiment based on RRC signaling. The serving cell 920 can notify the UE 910 of the multi-Rx chain adaptation enabled by the serving cell 920 by signaling multiRx-AssistanceConfig to notify the UE 910 that the multi-Rx chain adaptation is enabled by the serving cell 920 and to configure the UE 910 to use related parameters while adapting each multi-Rx mode. This notification is indicated in an RRCReconfiguration message. Furthermore, the serving cell 920 can indicate which is the default multi-Rx mode to be used by the UE 910. To notify the network configuration, new information elements such as multiRx-AssistanceConfig, multiRx-DefaultMode with the default mode of multi-Rx chain, and multiRx-timer may be defined in the RRCReconfiguration message.

[0085] At 901, the serving cell 920 may send an RRCReconfiguration message to the UE 910, which may include multiRx-Assistance Config, multiRx-DefaultMode=Mode1, and a multiRx-timer. The multiRx-timer in this example may be used to prevent the UE 910 from requesting changes too frequently, so the mode may be active for at least the multiRx-timer.

[0086] At 902, the UE 910 may send an RRCReconfigurationComplete message to the serving cell 920.

[0087] At 903, the UE 910 may send a UL-DCCH-MessageType message, which may include UEAssistanceInformation and multiRx-preferredMode=Mode2, to the serving cell 920. After the RRCReconfiguration is completed, the UE 910 may use the UEAssistance information to inform the serving cell 920 of its preferred multi-Rx mode. A new UEAssistance information element may be included to inform the UE's preferred mode, multiRx-preferredMode.

[0088] At 904, the serving cell 920 may send an RRCReconfiguration message to the UE 910, which may include multiRx-Configuration=Mode2.

[0089] At 905, the UE 910 may send an RRCReconfigurationComplete message to the serving cell 920.

[0090] 10 illustrates an example of a system according to certain exemplary embodiments. In one exemplary embodiment, the system may include multiple devices, such as, for example, a NE 1010 and / or a UE 1020.

[0091] The NE1010 may be one or more of a base station such as an eNB or gNB, a serving gateway, a server, and / or any other access node or combination thereof.

[0092] The NE 1010 may further include at least one gNB-CU that may be associated with at least one gNB-DU. The at least one gNB-CU and the at least one gNB-DU may communicate via at least one F1 interface, at least one X(n)-C interface, and / or at least one NG interface over 5GC.

[0093] The UE 1020 may include one or more of the following: a mobile device such as a mobile phone, a smartphone, a personal digital assistant (PDA), a tablet, or a portable media player; a digital camera, a pocket video camera, a video game console; a navigation device such as a global positioning system (GPS) device; a desktop or laptop computer; a single location device such as a sensor or smart meter; or any computing device thereof. Additionally, the NE 1010 and / or the UE 1020 may be one or more of a Citizens Broadband Wireless Service Device (CBSD).

[0094] The NE 1010 and / or the UE 1020 may include at least one processor, respectively denoted as 1011 and 1021. The processors 1011 and 1021 may be embodied by any computing or data processing device, such as a central processing unit (CPU), an application specific integrated circuit (ASIC), or equivalent device. The processor may be implemented as a single controller or multiple controllers or processors.

[0095] At least one memory may be provided in one or more devices, as indicated by 1012 and 1022. The memory may be fixed or removable. The memory may include computer program instructions or computer code contained therein. The memories 1012 and 1022 may independently be any suitable computing device, such as a non-transitory computer-readable medium. The term "non-transitory" as used herein may correspond to a limitation of the medium itself (i.e., tangible, not signal), as opposed to a limitation regarding the persistence of data storage (e.g., RAM versus ROM). A hard disk drive (HDD), random access memory (RAM), flash memory, or other suitable memory may be used. The memory may be combined on a single integrated circuit as the processor or may be separate from one or more processors. Furthermore, the computer program instructions stored in the memory and processed by the processor may be any suitable form of computer program code, for example, a compiled or interpreted computer program written in any suitable programming language.

[0096] The processors 1011 and 1021, memories 1012 and 1022, and any subset thereof, can be configured to provide means for corresponding to the various blocks of Figures 4-9. Although not shown, the device can also include positioning hardware, such as GPS or microelectromechanical systems (MEMS) hardware, that can be used to determine the device's location. Other sensors can also be used, such as a barometer, compass, and the like, that can be configured to determine position, altitude, speed, heading, and the like.

[0097] As shown in Figure 10, transceivers 1013 and 1023 may be provided, and one or more devices may also include at least one antenna, illustrated as 1014 and 1024, respectively. The devices may have multiple antennas, such as an array of antennas configured for multiple-input multiple-output (MIMO) communications, or multiple antennas for multiple RATs. For example, other configurations of these devices may be provided. The transceivers 1013 and 1023 may be units or devices that can be configured to be transmitters, receivers, both transmitters and receivers, or both transmit and receive.

[0098] The memory and computer program instructions, together with a processor for a particular device, may be configured to cause a hardware device, such as a UE, to perform any of the processes described above (i.e., FIGS. 4-9). Thus, in certain exemplary embodiments, a non-transitory computer-readable medium may be encoded with computer instructions that, when executed in hardware, perform a process such as one of the processes in this example. Alternatively, certain exemplary embodiments may be performed entirely in hardware.

[0099] In an exemplary embodiment, a device may include circuitry configured to perform any of the processes or functions illustrated in Figures 4-9. As used herein, the term "circuitry" may refer to one or more or all of the following: (a) a hardware-only circuit implementation (e.g., an implementation using only analog and / or digital circuitry); (b) a combination of hardware circuitry and software, such as (where applicable): (i) a combination of analog and / or digital hardware circuitry(s) with software / firmware; (ii) a combination of hardware processor(s) with software (including digital signal processor(s)), software, and memory(s) that cooperate to cause a device, such as a mobile phone or server, to perform various functions; and (c) hardware circuit(s) and / or processor(s), such as microprocessor(s) or portions of microprocessors, that require software (e.g., firmware) to operate, but may not be present if software is not required for operation. This definition of circuitry applies to all uses of the term in this application, including the claims. As a further example, as used herein, the term circuitry covers simply a hardware circuit or processor (or processors) or part of a hardware circuit or processor and its (or their) accompanying software and / or firmware implementations. The term circuitry also covers, for example, a baseband or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device, if applicable to particular claim elements.

[0100] FIG. 11 illustrates an example of a 5G network and system architecture according to certain exemplary embodiments. Several network functions are illustrated, which may be implemented as software running as part of network equipment or dedicated hardware, as the network equipment itself or dedicated hardware, or as virtual functions running as network equipment or dedicated hardware. The NE and UE illustrated in FIG. 11 may be similar to NE 1010 and UE 1020, respectively. The user plane function (UPF) may provide services such as intra-RAT and inter-RAT mobility, data packet routing and forwarding, packet inspection, user plane quality of service (QoS) processing, downlink packet buffering, and / or downlink data notification triggering. The application function (AF) may interface with the core network primarily to facilitate application utilization of traffic routing and interact with the policy framework.

[0101] According to certain exemplary embodiments, the processors 1011 and 1021 and memories 1012 and 1022 may be included in or form part of processing or control circuitry. Additionally, the transceivers 1013 and 1023 in some exemplary embodiments may be included in or form part of transceiver circuitry.

[0102] In some exemplary embodiments, an apparatus (e.g., the NE 1010 and / or the UE 1020) may include means for performing any of the methods, processes, or variations described in this example. Examples of means may include one or more processors, memories, controllers, transmitters, receivers, and / or computer program code for causing the execution of operations.

[0103] In various exemplary embodiments, the apparatus 1020 may be controlled by the memory 1022 and the processor 1021 to receive at least one radio resource control configuration or device capability report signal associated with the at least one multi-receive chain user equipment mode from a serving cell, transmit an indication to the serving cell that the at least one multi-receive chain user equipment mode is preferred, and, in response to transmitting the indication that the at least one multi-receive chain user equipment mode is preferred, receive an indication from the serving cell that the preferred at least one multi-receive chain user equipment mode is in operation.

[0104] Certain example embodiments may be directed to an apparatus comprising means for performing any of the methods herein including, for example, means for receiving at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode from a serving cell; means for transmitting an indication to the serving cell that the at least one multi-receive chain user equipment mode is preferred; and means for receiving an indication from the serving cell that the preferred at least one multi-receive chain user equipment mode is in operation in response to transmitting the indication that the at least one multi-receive chain user equipment mode is preferred.

[0105] In various exemplary embodiments, the apparatus 1010 may be controlled by the memory 1012 and the processor 1011 to transmit at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode to the user equipment, receive an indication from the user equipment that the at least one multi-receive chain user equipment mode is preferred, and in response to receiving the indication that the at least one multi-receive chain user equipment mode is preferred, transmit an indication to the user equipment that the preferred at least one multi-receive chain user equipment mode is in operation.

[0106] Certain example embodiments may be directed to an apparatus comprising means for performing any of the methods described herein including, for example, means for receiving at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode from a serving cell; means for transmitting an indication to the serving cell that the at least one multi-receive chain user equipment mode is preferred; and means for receiving an indication from the serving cell that the preferred at least one multi-receive chain user equipment mode is in operation in response to transmitting the indication that the at least one multi-receive chain user equipment mode is preferred.

[0107] The features, structures, or characteristics of the exemplary embodiments described throughout this specification may be combined in any suitable manner in one or more exemplary embodiments. For example, the use of the phrases "various embodiments," "particular embodiments," "some embodiments," or other similar phrases throughout this specification refers to the fact that a particular feature, structure, or characteristic described in connection with an exemplary embodiment may be included in at least one exemplary embodiment. Thus, the appearances of "in various embodiments," "in particular embodiments," "in some embodiments," or other similar phrases throughout this specification do not necessarily all refer to the same group of exemplary embodiments, but rather that the described features, structures, or characteristics may be combined in any suitable manner in one or more exemplary embodiments.

[0108] As used herein, "at least one of: " and similar expressions such as "at least one of " mean at least any one of the elements, or at least any two or more of the elements, or at least all of the elements when a list of two or more elements is joined by "and" or "or."

[0109] Moreover, if desired, different functions or procedures described above may be performed in different orders and / or concurrently with one another. Moreover, if desired, one or more of the described functions or procedures may be optional or combined. As such, the foregoing description should be considered illustrative of the principles and teachings of particular exemplary embodiments, and not limiting thereof.

[0110] Those skilled in the art will readily appreciate that the exemplary embodiments described above may be implemented using a different sequence of steps and / or hardware elements in different configurations than those disclosed. Thus, while several embodiments have been described based on these exemplary embodiments, it will be apparent to those skilled in the art that certain modifications, variations, and alternative configurations will be apparent while remaining within the spirit and scope of the exemplary embodiments.

[0111] Part of the glossary 3GPP (registered trademark) 3rd Generation Partnership Project 5G (5th Generation) 5GC 5th generation core 5GS 5th Generation System 6G 6th generation AMF Access and Mobility Management Functions ASIC Application Specific Integrated Circuit BS base station CAPC Channel Access Priority Class CBSD Citizens Broadband Wireless Service Equipment CN Core Network CPU Central Processing Unit CSI Channel State Information DCI Downlink Control Information DL Downlink eMBB Enhanced Mobile Broadband eMTC Enhanced Machine Type Communication eNB Evolved Node B EPS Evolved Packet System FR Frequency Range gNB Next Generation Node B GPS Global Positioning System HDD Hard Disk Drive L1 Layer 1 L2 Layer 2 LTE Long Term Evolution LTE-A Long Term Evolution Advanced MAC Media Access Control MBS Multicast and Broadcast System MC Multicast MCS modulation and coding scheme MEMS Microelectromechanical Systems MIB Master Information Block MIMO Multiple Input Multiple Output MME Mobility Management Entity mMTC Large-scale Machine Type Communication MPDCCH Machine Type Communications Physical Downlink Control Channel MTC Machine Type Communication NAS non-access layer NB-IoT Narrowband Internet of Things NE Network Entity NG Next generation NG-eNB Next Generation Evolved Node B NG-RAN Next Generation Radio Access Network NR new radio NR-U New Radio Unlicensed OFDM Orthogonal Frequency Division Multiplexing PDA Personal Digital Assistant PDCCH Physical Downlink Control Channel PDSCH Physical Downlink Shared Channel PRB Physical Resource Block RAM Random Access Memory RAN Radio Access Network RAT Radio Access Technology RE Resource Element RLC Radio Link Control RRC Radio Resource Control RRM RS reference signal RSRP reference signal received power SDU Service Data Unit SMF Session Management Facility SMTC Synchronization Signal / Physical Broadcast Channel Block Measurement Timing Configuration SR Scheduling Report SRB Signaling Radio Bearer SSB sync signal block TB Transport Block Tx Transmission UE User Equipment UL Uplink UMTS Universal Mobile Telecommunications System UPF User Plane Function URLLC: Ultra-reliable, low-latency communication UTRAN Universal Mobile Telecommunications System Terrestrial Radio Access Network WLAN Wireless Local Area Network

Claims

1. receiving at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode from a serving cell; sending a notification to the serving cell that at least one multi-receive chain user equipment mode is preferred; and receiving, in response to transmitting the indication that at least one multi-receive chain user equipment mode is preferred, an indication from the serving cell that the preferred at least one multi-receive chain user equipment mode is active; and A method comprising:

2. receiving data from the serving cell in accordance with the at least one preferred multi-receive chain user equipment mode; The method of claim 1 further comprising:

3. receiving at a first receiver from a first cell at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel based on the preferred at least one multi-receive chain user equipment mode; receiving at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel at a second receiver from the first cell concurrently with the at least one synchronization signal block measurement received at the first receiver based on the preferred at least one multi-receive chain user equipment mode; 3. The method of claim 1 or 2, further comprising:

4. receiving at a first receiver from a first cell at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel based on the preferred at least one multi-receive chain user equipment mode; receiving at the second receiver, from a second cell having a cell identifier different from that of the first cell, at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel that at least partially overlaps in time with the at least one synchronization signal block measurement received at the first receiver based on the preferred at least one multi-receive chain user equipment mode; The method of any one of claims 1 to 3, further comprising:

5. receiving at the first receiver one of the signals from a cell based on the preferred at least one multi-receive chain user equipment mode; receiving at the first receiver a signal associated with an active data connection from a cell; measuring, at the second receiver, at the same time as the at least one signal received at the first receiver from a cell based on the at least one preferred multi-receive chain user equipment mode, at least one synchronization signal block measurement that at least partially overlaps in time with the signal related to the exchange of data at the first receiver; The method of any one of claims 1 to 4, further comprising:

6. performing at least one of the following tasks in the first receiver and the second receiver: measuring a synchronization signal block, measuring a channel state information reference signal, and demodulating a physical downlink control channel or a physical downlink shared channel from a cell; The method of any one of claims 1 to 5, further comprising:

7. based on the prioritized at least one multi-receive chain user equipment mode; performing measurements at the first receiver on at least one of a synchronization signal block, a channel state information reference signal, a demodulation of a physical downlink control channel, or a demodulation of a physical downlink shared channel from the first cell; performing measurements at a second receiver on at least one of a synchronization signal block, a channel state information reference signal, a demodulation of a physical downlink control channel, or a demodulation of a physical downlink shared channel from the first cell or the second cell; The method of claim 1 , further comprising performing at least one of:

8. The radio resource control configuration Notification that mode adaptation is allowed, Notification of at least one available mode; The method of any one of claims 1 to 7, comprising at least one of:

9. transmitting, to the user equipment, at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode; receiving, from the user equipment, an indication that at least one multi-receive chain user equipment mode is preferred; in response to receiving the notification that at least one multi-receive chain user equipment mode is preferred, sending a notification to the user equipment that the preferred at least one multi-receive chain user equipment mode is active; A method comprising:

10. Initiating at least one of a gap or a scheduling restriction based on the set multi-receiver chain mode; 10. The method of claim 9, further comprising:

11. 1. An apparatus comprising: at least one processor; When executed by the at least one processor, the device includes at least: receiving at least one radio resource control configuration or device capability report signal associated with at least one multi-receive chain user equipment mode from a serving cell; sending a notification to the serving cell that at least one multi-receive chain user equipment mode is preferred; and receiving, in response to sending the indication that at least one multi-receive chain user equipment mode is preferred, from the serving cell, an indication that the preferred at least one multi-receive chain user equipment mode is active; and at least one memory storing instructions for executing the An apparatus comprising:

12. The at least one memory and the instructions, when executed by the at least one processor, cause the device to at least: receiving data from the serving cell in accordance with the at least one preferred multi-receive chain user equipment mode; The apparatus of claim 11 , further comprising:

13. The at least one memory and the instructions, when executed by the at least one processor, cause the device to at least: receiving at a first receiver from a first cell at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel based on the preferred at least one multi-receive chain user equipment mode; receiving at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel at a second receiver from the first cell concurrently with the at least one synchronization signal block measurement received at the first receiver based on the preferred at least one multi-receive chain user equipment mode; 13. The apparatus according to claim 11 or 12,

14. The at least one memory and the instructions, when executed by the at least one processor, cause the device to at least: receiving at the first receiver from a first cell at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel based on the preferred at least one multi-receive chain user equipment mode; receiving at the second receiver, from a second cell having a cell identifier different from that of the first cell, at least one of a synchronization signal block, a channel state information reference signal, a physical downlink control channel, or a physical downlink shared channel that at least partially overlaps in time with the at least one synchronization signal block measurement received at the first receiver based on the preferred at least one multi-receive chain user equipment mode; The apparatus according to any one of claims 11 to 13, further comprising:

15. The at least one memory and the instructions, when executed by the at least one processor, cause the device to at least: receiving at the first receiver one of the signals from a cell based on the preferred at least one multi-receive chain user equipment mode; receiving at the first receiver a signal associated with an active data connection from a cell; measuring at the second receiver, concurrently with the at least one signal received at the first receiver based on the preferred at least one multi-receive chain user equipment mode from a cell, at least one synchronization signal block measurement that at least partially overlaps in time with the signal related to the exchange of data at the first receiver; The apparatus according to any one of claims 11 to 14, further comprising:

16. The at least one memory and the instructions, when executed by the at least one processor, cause the device to at least: performing at least one of the following tasks in the first receiver and the second receiver: measuring a synchronization signal block, measuring a channel state information reference signal, and demodulating a physical downlink control channel or a physical downlink shared channel from a cell; 16. The apparatus according to claim 11, further comprising:

17. The at least one memory and the instructions, when executed by the at least one processor, cause the device to perform at least: performing measurements at the first receiver on at least one of a synchronization signal block, a channel state information reference signal, a demodulation of a physical downlink control channel, or a demodulation of a physical downlink shared channel from the first cell; performing measurements at the second receiver on at least one of a synchronization signal block, a channel state information reference signal, a demodulation of a physical downlink control channel, or a demodulation of a physical downlink shared channel from the first cell or the second cell; 16. The apparatus according to claim 11, wherein the apparatus is configured to perform at least one of the following:

18. The radio resource control configuration Notification that mode adaptation is allowed, Notification of at least one available mode; 18. The apparatus of claim 11, comprising at least one of:

19. 1. An apparatus comprising: at least one processor; When executed by the at least one processor, the device includes at least: transmitting, to the user equipment, at least one radio resource control configuration associated with at least one multi-receive chain user equipment mode; receiving, from the user equipment, an indication that at least one multi-receive chain user equipment mode is preferred; in response to receiving the notification that at least one multi-receive chain user equipment mode is preferred, sending a notification to the user equipment that the preferred at least one multi-receive chain user equipment mode is active; at least one memory storing instructions for executing the An apparatus comprising:

20. The at least one memory and the instructions, when executed by the at least one processor, cause the device to at least: Initiating at least one of a gap or a scheduling restriction based on the set multi-receiver chain mode; 20. The apparatus of claim 19, further comprising:

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