Receiver adjustment for wireless communication

Abstract

Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may communicate with a base station using multiple receivers and receive an indication from the base station to activate a second bandwidth portion of a set of bandwidth portions configured for the UE. In response to the indication, the UE may switch from operating in a first bandwidth portion to operating in a second bandwidth portion and adjust a quantity of active receivers in the UE based on switching from operating in the first bandwidth portion to operating in the second bandwidth portion. Additionally or alternatively, the UE may adjust a quantity of active receivers in the UE based on monitoring a downlink grant from the base station.

Description

Claim of priority

[0001] cross reference

[0001] This patent application claims the interests of U.S. Patent Application No. 17 / 334,452, filed on 28 May 2021, entitled "RECEIVER ADJUSTMENT FOR WIRELESS COMMUNICATION," filed by Jian et al., which has been assigned to the assignee of this application. [Technical Field]

[0002]

[0002] The following relates to wireless communication, including receiver adjustment for wireless communication. [Background technology]

[0003]

[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcast. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems such as Long-Term Evolution (LTE®) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth-generation (5G) systems, sometimes called New Radio (NR) systems. These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). Wireless multiple access communication systems may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may sometimes be known as user equipment (UEs).

[0004]

[0004] Some wireless communication systems can support multiple-input multiple-output (MIMO) communication. To support MIMO communication, a wireless device (e.g., a UE) may include multiple receivers. In some examples, a wireless device may have a large number of active receivers (e.g., four active receivers) to increase data throughput and reliability. However, in some situations, having a large number of active receivers can lead to excessive power consumption in the wireless device. [Overview of the project]

[0005]

[0005] The techniques described relate to improved methods, systems, devices, and apparatus for supporting receiver adjustment for wireless communications. Generally, the techniques described enable a user equipment (UE) to adjust the number of active receivers based on switching of bandwidth portions (BWPs). The UE receives an instruction from a base station to activate (e.g., switch to) one of the set of BWPs configured for the UE, and in response, the UE can increase, decrease, or maintain the number of active receivers in the UE based on the characteristics (e.g., bandwidth) of the instructed BWP.

[0006]

[0006] A method for wireless communication in a user device (UE) is described. The method may include receiving an activation message from a base station for a second BWP of a set of multiple BWPs configured for the UE, switching from operation in a first BWP to operation in a second BWP based on the activation message for the second BWP, and adjusting the number of active receivers in the UE based on the switching from operation in a first BWP to operation in a second BWP.

[0007]

[0007] An apparatus for wireless communication in a UE is described. The apparatus may include a processor, memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive an activation message from a base station for a second BWP of a set of BWPs configured for the UE, to switch from operation in a first BWP to operation in a second BWP based on the activation message for the second BWP, and to adjust the number of active receivers in the UE based on the switch from operation in a first BWP to operation in a second BWP.

[0008]

[0008] Another apparatus for wireless communication in a UE is described. The apparatus may include means for receiving an activation message from a base station for a second BWP of a set of BWPs configured for the UE; means for switching from operation in a first BWP to operation in a second BWP based on the activation message for the second BWP; and means for adjusting the number of active receivers in the UE based on the switching from operation in a first BWP to operation in a second BWP.

[0009]

[0009] A non-temporary computer-readable medium for storing code for wireless communication in the UE is described. The code may include instructions that can be executed by a processor to receive an activation message from a base station for a second BWP of a set of multiple BWPs configured for the UE, to switch from operation in a first BWP to operation in a second BWP based on the activation message for the second BWP, and to adjust the number of active receivers in the UE based on the switch from operation in a first BWP to operation in a second BWP.

[0010]

[0010] Some examples of the methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for monitoring one or more downlink permissions from a base station while operating within a second BWP, and adjusting the number of active receivers in the UE may be based on monitoring one or more downlink permissions from a base station.

[0011]

[0011] Some examples of the methods, apparatus, and non-transient computer-readable media described herein may further include operations, features, means, or instructions for activating a timer based on switching from operation in a first BWP to operation in a second BWP, and monitoring one or more downlink permissions from a base station may be based on a timer.

[0012]

[0012] In some examples of the methods, apparatus, and non-transient computer-readable media described herein, the bandwidth associated with the second BWP is greater than a threshold, and adjusting the number of active receivers in the UE may be based on the fact that the bandwidth associated with the second BWP is greater than a threshold.

[0013]

[0013] Some examples of the methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for failing to detect one or more downlink permissions from a base station while operating within a second BWP, and adjusting the number of active receivers in the UE may include operations, features, means, or instructions for reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on the failure to detect one or more downlink permissions from a base station.

[0014]

[0014] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for transmitting signaling to a base station based on a second number of active receivers before reducing the number of active receivers in the UE.

[0015]

[0015] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, transmitting signaling based on a second number of active receivers may include operations, features, means, or instructions for transmitting channel state feedback (CSF), sounding reference signals (SRS), or both to a base station in accordance with the format associated with the second number of active receivers.

[0016]

[0016] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for activating a timer based on transmitting a signaling, and reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers is done based on the expiration of the timer.

[0017]

[0017] Some examples of the methods, apparatus, and non-transient computer-readable media described herein may further include operations, features, means, or instructions for activating a second timer based on whether one or more second downlink permissions can be detected during the duration associated with the timer, and reducing the number of active receivers in the UE is done based on the expiration of the timer and the second timer.

[0018]

[0018] Some examples of the methods, apparatus, and non-transient computer-readable media described herein may further include operations, features, means, or instructions for detecting one or more second downlink permissions from a base station while operating within a second BWP and after reducing the number of active receivers from a first number of active receivers to a second number of active receivers, and for increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers based on detecting one or more second downlink permissions from a base station.

[0019]

[0019] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, adjusting the number of active receivers in the UE may include operations, features, means, or instructions for reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on the bandwidth associated with a second BWP falling below a threshold.

[0020]

[0020] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for transmitting signaling to a base station based on a second number of active receivers before reducing the number of active receivers in the UE.

[0021]

[0021] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, transmitting signaling based on a second number of active receivers may include operations, features, means, or instructions for transmitting CSF, SRS, or both to a base station in accordance with the format associated with the second number of active receivers.

[0022] Some examples of the methods, apparatuses, and non - transient computer - readable media described herein may further include operations, features, means, or instructions for activating a timer based on transmitting signaling, and reducing the number of active receivers from a first quantity of active receivers to a second quantity of active receivers is performed based on expiration of the timer.

[0023] Some examples of the methods, apparatuses, and non - transient computer - readable media described herein may further include operations, features, means, or instructions for activating a second timer based on whether one or more second downlink grants are detected during a duration associated with a timer, and reducing the number of active receivers in a UE is performed based on expiration of the timer and the second timer.

[0024] In some examples of the methods, apparatuses, and non - transient computer - readable media described herein, adjusting the number of active receivers in a UE may include operations, features, means, or instructions for reducing the number of active receivers in the UE from a first quantity of active receivers to a second quantity of active receivers. The method may further include detecting one or more downlink grants from a base station that schedule communications associated with the first quantity of active receivers, increasing the number of active receivers from a second quantity of active receivers to the first quantity of active receivers during a time period based on detecting the one or more downlink grants, and reducing the number of active receivers from the first quantity of active receivers to the second quantity of active receivers after the time period.

[0025] A method for wireless communication in a UE is described. The method may include receiving, from a base station, an activation message for one of a set of multiple BWPs configured for the UE, monitoring one or more downlink grants while operating within the BWP, the one or more downlink grants being for receiving one or more downlink signals within the active BWP, and adjusting the number of active receivers in the UE based on whether one or more downlink grants are detected.

[0026] An apparatus for wireless communication in a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive, from a base station, an activation message for one of a set of multiple BWPs configured for the UE, monitor one or more downlink grants while operating within the BWP, the one or more downlink grants being for receiving one or more downlink signals within the active BWP, and adjust the number of active receivers in the UE based on whether one or more downlink grants are detected.

[0027] Another apparatus for wireless communication in a UE is described. The apparatus may include means for receiving, from a base station, an activation message for one of a set of multiple BWPs configured for the UE, means for monitoring one or more downlink grants while operating within the BWP, the one or more downlink grants being for receiving one or more downlink signals within the active BWP, and means for adjusting the number of active receivers in the UE based on whether one or more downlink grants are detected.

[0028]

[0028] A non-temporary computer-readable medium for storing code for wireless communications in the UE is described. The code may include instructions that can be executed by a processor to receive an activation message from a base station for one of a set of BWPs configured for the UE, monitor one or more downlink permissions while operating within the BWP, one or more downlink permissions being for receiving one or more downlink signals within the active BWP, and adjust the number of active receivers in the UE based on whether one or more downlink permissions have been detected.

[0029]

[0029] Some examples of the methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for failing to detect one or more downlink permissions from a base station while operating within a BWP, and adjusting the number of active receivers in the UE may include operations, features, means, or instructions for reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on the failure to detect one or more downlink permissions from a base station.

[0030]

[0030] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for transmitting signaling to a base station based on a second number of active receivers before reducing the number of active receivers in the UE.

[0031]

[0031] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, transmitting signaling based on a second number of active receivers may include operations, features, means, or instructions for transmitting CSF, SRS, or both to a base station in accordance with the format associated with the second number of active receivers.

[0032]

[0032] Some examples of the methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for activating a timer based on transmitting a signaling, and reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers is done based on the expiration of the timer.

[0033]

[0033] Some examples of the methods, apparatus, and non-transient computer-readable media described herein may further include operations, features, means, or instructions for activating a second timer based on whether one or more second downlink permissions may be detected during the duration associated with the timer, and reducing the number of active receivers in the UE is done based on the expiration of the timer and the second timer.

[0034]

[0034] Some examples of the methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for detecting one or more second downlink permissions from a base station while operating within a BWP and after reducing the number of active receivers from a first number of active receivers to a second number of active receivers, and for increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers based on detecting one or more second downlink permissions from a base station.

[0035]

[0035] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, adjusting the number of active receivers in a UE may include operations, features, means, or instructions for reducing the number of active receivers in a UE from a first number of active receivers to a second number of active receivers, the method further including detecting one or more downlink permissions from a base station to schedule communications associated with the first number of active receivers, increasing the number of active receivers from a second number of active receivers to a first number of active receivers during a time period based on the detection of one or more downlink permissions, and decreasing the number of active receivers from a first number of active receivers to a second number of active receivers after the time period.

[0036]

[0036] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, each BWP in a set of multiple BWPs may have the same bandwidth. [Brief explanation of the drawing]

[0037] [Figure 1]

[0037] A diagram showing an example of a wireless communication system that supports receiver adjustment for wireless communication according to an aspect of the present disclosure. [Figure 2] A diagram illustrating another example of a wireless communication system that supports receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 3]

[0038] A diagram illustrating an example of a bandwidth portion (BWP) switching scheme that supports receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 4] A diagram illustrating another example of a bandwidth portion (BWP) switching scheme supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 5]

[0039] A diagram illustrating an example of a process flow supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 6]

[0040] A block diagram of a device supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 7] A block diagram of a device supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 8]

[0041] A block diagram of a communications manager supporting receiver adjustment for wireless communications according to an aspect of this disclosure. [Figure 9]

[0042] A diagram of a system including a device that supports receiver adjustment for wireless communication, according to an aspect of this disclosure. [Figure 10]

[0043] A flowchart illustrating a method for supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 11] A flowchart illustrating a method for supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 12] A flowchart illustrating a method for supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 13] A flowchart illustrating a method for supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 14] A flowchart illustrating a method for supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Figure 15] A flowchart illustrating a method for supporting receiver adjustment for wireless communication according to an aspect of this disclosure. [Modes for carrying out the invention]

[0038]

[0044] In some cases, wireless communication systems can support multiple-input multiple-output (MIMO) communication. In one example of MIMO communication, a base station can split a signal into multiple data streams and transmit multiple data streams to a user equipment (UE). To receive multiple data streams simultaneously, the UE can use multiple active receivers (e.g., a different active receiver for each data stream). Having a large number of active receivers (e.g., four active receivers as opposed to two) can increase throughput (e.g., increase the number of data streams the UE can receive at once) and can be advantageous during times of high data traffic. However, in some cases, the UE may encounter periods of low data traffic, in which case maintaining a large number of receivers in an active state can be inefficient from a power consumption standpoint.

[0039]

[0045] In some examples, a UE may consist of multiple bandwidth portions (BWPs). At a given time, for example, one of the BWPs may be active. The UE may receive instructions from a base station to activate another BWP and switch to it. In some examples, a UE may consist of two or more BWPs of different sizes. BWP switching may be correlated with changes in data traffic patterns, and therefore, as described herein, the UE may adapt the number of active receivers in the UE based on one or more characteristics of the newly activated BWP.

[0040]

[0046] In one example, a UE might receive an activation message from the base station for a small BWP (e.g., a BWP with bandwidth below a threshold, or a BWP with less bandwidth than at least one other configured BWP). Switching to a small BWP, or being instructed to use one, could indicate that a low data traffic pattern is coming, allowing the UE to reduce the number of active receivers. In another example, a UE might receive an activation message from the base station for a large BWP (e.g., a BWP with bandwidth above a threshold, or a BWP with greater bandwidth than at least one other configured BWP). Switching to a large BWP, or being instructed to use one, could indicate that a high data traffic pattern is coming, allowing the UE to increase the number of active receivers. In some examples, if the UE does not receive any downlink (DL) authorizations during the duration it operates within a large BWP, the UE can reduce the number of active receivers. When reducing the number of active receivers, the UE may send one or more messages or other signals (e.g., feedback messages) to the base station that reflect the reduction in active receivers (for example, the UE may send a Channel State Feedback (CSF) report or one or more Sounding Reference Signals (SRS) that use or otherwise reflect the amount of reduction in active receivers), and the UE may then wait for a duration before reducing the number of active receivers.

[0041]

[0047] As an addition or alternative, a base station can configure a UE with two or more BWPs of the same size (e.g., the same bandwidth). In such a case, the UE can operate according to the techniques described for operating within a large BWP. For example, if the UE switches to a BWP of the same size and does not receive any DL permission from the base station during the duration, the UE can reduce the number of active receivers in the UE. Furthermore, as another example, the UE can send signaling to the base station reflecting the reduction in active receivers and wait for the duration before reducing the number of active receivers.

[0042]

[0048] The aspects of this disclosure are first described in the context of wireless communication systems. Further aspects are described in the context of BWP switching schemes and process flows. The aspects of this disclosure are further illustrated and described by reference to apparatus diagrams, system diagrams, and flowcharts relating to receiver adjustment for wireless communication.

[0043]

[0049] Figure 1 shows an example of a wireless communication system 100 supporting receiver tuning for wireless communication according to an aspect of the present disclosure. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long-Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support extended broadband communication, ultra-high reliability (e.g., mission-critical) communication, low-latency communication, communication using low-cost and low-complexity devices, or any combination thereof.

[0044]

[0050] Base stations 105 may be distributed across a geographical area to form a wireless communication system 100 and may be devices of different forms or with different capabilities. Base stations 105 and UEs 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110 on which the UEs 115 and base stations 105 can establish one or more communication links 125. The coverage area 110 may be an example of a geographical area on which base stations 105 and UEs 115 can support the communication of signals according to one or more radio access technologies.

[0045]

[0051] The UE115 may be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE115 may be fixed, mobile, or both at different times. The UE115 may be different forms of devices or devices with different capabilities. Several exemplary UE115 are shown in Figure 1. The UE115 described herein may be capable of communicating with various types of devices such as other UE115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), as shown in Figure 1.

[0046]

[0052] Base stations 105 may communicate with the core network 130, or communicate with each other, or both. For example, base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base stations 105 may communicate with each other over the backhaul links 120 (e.g., via X2, Xn, or other interfaces) either directly (e.g., directly between base stations 105) or indirectly (e.g., via the core network 130), or both. In some examples, the backhaul links 120 may be one or more wireless links, or include them.

[0047]

[0053] One or more of the base stations 105 described herein may include, or be referred to as, a transceiver base station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB or gigaNodeB (any of which may be called a gNB), a home NodeB, a home eNodeB, or any other appropriate term.

[0048]

[0054] UE115 may include, or may be referred to as, a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other appropriate term, where “device” may also be referred to as a unit, station, terminal, or client, in particular in the examples. UE115 may also include, or may be referred to as, a personal electronic device such as a mobile phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE115 may include, or may be referred to as, a wireless local loop (WLL) station, an Internet of Things (IoT) device, any Internet of Things (IoE) device, or a machine-type communications (MTC) device, in particular in the examples, which may be implemented in various objects such as equipment, vehicles, meters, etc.

[0049]

[0055] The UE115 described herein may be capable of communicating with various types of devices, including, in particular, other UE115s that can sometimes operate as relays, as shown in Figure 1, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations.

[0050]

[0056] UE115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 over one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication links 125. For example, the carrier used for communication links 125 may include a portion of a radio frequency spectrum band (e.g., BWP) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling that coordinates operations on the carrier, user data, or other signaling. The wireless communication system 100 can support communication with UE115 using carrier aggregation or multi-carrier operation. UE115 may consist of multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency-division duplex (FDD) and time-division duplex (TDD) component carriers.

[0051]

[0057] In some examples (for instance, in carrier aggregation configurations), a carrier may also have acquisition or control signaling that coordinates the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Advanced Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be positioned according to a channel raster for discovery by the UE115. A carrier may operate in a standalone mode where initial acquisition and connection can be performed by the UE115 via the carrier, or it may operate in a non-standalone mode where the connection is established using different carriers (e.g., the same or different radio access technologies).

[0052]

[0058] The communication link 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the base station 105, or downlink transmissions from the base station 105 to the UE 115. The carrier may be configured to carry downlink communications or uplink communications (for example, in FDD mode), or to carry both downlink communications and uplink communications (for example, in TDD mode).

[0053]

[0059] A carrier may be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths for the carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) may have a hardware configuration that supports communication over a specific carrier bandwidth, or may be configurable to support communication over one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication over carriers associated with multiple carrier bandwidths. In some examples, each UE 115 being served may be configured to operate over a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0054]

[0060] The signal waveform transmitted on a carrier may consist of multiple subcarriers (for example, using multicarrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM). In systems employing MCM techniques, a resource element may include one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements the UE115 receives, and the higher the order of the modulation scheme, the higher the data rate for the UE115 may be. Wireless communication resources may refer to a combination of radio frequency spectral resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate or data integrity for communication with the UE115.

[0055]

[0061] One or more numerologies may be supported for a carrier, where the numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, UE115 may consist of multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for UE115 may be limited to one or more active BWPs.

[0056]

[0062] The time interval for base station 105 or UE115 is, for example, T s = 1 / (Δf max ·N f It can be expressed as a multiple of a basic time unit, where Δf can refer to a sampling period of seconds. maxThis can represent the maximum supported subcarrier interval, N f This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time intervals of communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a System Frame Number (SFN) (e.g., in the range of 0 to 1023).

[0057]

[0063] Each frame may contain multiple sequentially numbered subframes or slots, each subframe or slot may have the same duration. In some examples, a frame may be divided into subframes (for example, in the time domain), and each subframe may be further divided into several slots. Alternatively, each frame may contain a variable number of slots, the number of slots may depend on the subcarrier interval. Each slot may contain several symbol periods (for example, depending on the length of the cyclic prefix appended to each symbol period). In some wireless communication systems 100, a slot may be further divided into several minislots containing one or more symbols. Except for the cyclic prefix, each symbol period may contain one or more (for example, N) symbols. f The sampling period may include (1) units. The duration of the symbol period may depend on the subcarrier interval or frequency operating bandwidth.

[0058]

[0064] A subframe, slot, minislot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be called a transmit time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods within the TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., within a burst of shortened TTIs (sTTIs)).

[0059]

[0065] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier using one or more of the following techniques: time-division multiplexing (TDM), frequency-division multiplexing (FDM), or hybrid TDM-FDM. A control region for a physical control channel (e.g., a control resource set (CORESET)) may be defined by several symbol periods and may extend across the carrier's system bandwidth or a subset of the system bandwidth. One or more control regions (e.g., a CORESET) may be configured for a set of UE115s. For example, one or more UE115s may monitor or explore control regions for control information according to one or more search space sets, each search space set may contain one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. Aggregation levels for control channel candidates may refer to several control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UE115s, and a UE-specific search space set for sending control information to a specific UE115.

[0060]

[0066] In some examples, base station 105 is mobile and therefore can provide communication coverage to a moving geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include heterogeneous networks in which different types of base stations 105 provide coverage to various geographic coverage areas 110, for example, using the same or different radio access technologies.

[0061]

[0067] The wireless communication system 100 may be configured to support ultra-high reliability communication, low-latency communication, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-high reliability low-latency communication (URLLC) or mission-critical communication. The UE 115 may be designed to support ultra-high reliability features, low-latency features, or critical features (e.g., mission-critical features). Ultra-high reliability communication may include private or group communication and may be supported by one or more mission-critical services such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical features may include prioritizing services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-high reliability, low-latency, mission-critical, and ultra-high reliability low-latency may be used interchangeably herein.

[0062]

[0068] In some examples, a UE115 may also be able to communicate directly with other UE115s over a device-to-device (D2D) communication link 135 (for example, using peer-to-peer (P2P) or D2D protocols). One or more UE115s utilizing D2D communication may be within the geographical coverage area 110 of base station 105. Other UE115s in such a group may be outside the geographical coverage area 110 of base station 105, or otherwise unable to receive transmissions from base station 105. In some examples, a group of UE115s communicating via D2D communication may utilize a one-to-many (1:M) system where each UE115 transmits to any other UE115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication takes place between UE115s without the involvement of base station 105.

[0063]

[0069] The core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an advanced packet core (EPC) or 5G core (5GC), and may include at least one control plane entity that manages access and mobility (e.g., a Mobility Management Entity (MME), an Access and Mobility Management Function (AMF)) and at least one user plane entity that routes packets or interconnections to external networks (e.g., a Serving Gateway (S-GW), a Packet Data Network (PDN) Gateway (P-GW), or a User Plane Function (UPF)). The control plane entity can manage non-access layer (NAS) functions such as mobility, authentication, and bearer management for UE 115 serviced by base station 105 associated with the core network 130. User IP packets may be forwarded through user plane entities that can provide IP address allocation and other functions. A user plane entity may connect to an IP service 150 for one or more network operators. The IP service 150 may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet-switched streaming service.

[0064]

[0070] Some network devices, such as the base station 105, may include sub-components, such as access network entities 140, which may be an example of an access node controller (ANC). Each access network entity 140 can communicate with the UE 115 through one or more other access network transmitting entities 145, which may be called radio heads, smart radio heads, or transmit / receive points (TRPs). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or integrated into a single network device (e.g., base station 105).

[0065]

[0071] The wireless communication system 100 can operate using one or more frequency bands in the range of, for example, 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band, as wavelengths range from approximately 1 decimeter to 1 meter in length. While UHF waves may be blocked or redirected by building and environmental features, the waves can penetrate structures well enough to serve UE115 where the macrocell is located indoors. Transmitting UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmitting using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0066]

[0072] The wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can employ license-assisted access (LAA), unlicensed LTE (LTE-U) radio access technology, or NR technology in unlicensed bands such as the 5 GHz Industrial Scientific Medical (ISM) band. When operating within unlicensed radio frequency spectrum bands, devices such as base station 105 and UE 115 can employ carrier detection for collision detection and avoidance. In some examples, operation within unlicensed bands may be based on a carrier aggregation configuration, along with component carriers operating within licensed bands (e.g., LAA). Operation within unlicensed spectrums may include, among other examples, downlink transmission, uplink transmission, P2P transmission, or D2D transmission.

[0067]

[0073] A base station 105 or UE115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, MIMO communication, or beamforming. The antennas of the base station 105 or UE115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be collated into an antenna assembly such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located within diverse geographical locations. The base station 105 may have an antenna array with several rows and columns of antenna ports that the base station 105 can use to support beamforming of communication with the UE115. Similarly, the UE115 may have one or more antenna arrays that can support various MIMO or beamforming operations. As an addition or alternative, an antenna panel may support radio frequency beamforming for signals transmitted through the antenna ports.

[0068]

[0074] A base station 105 or UE115 may use MIMO communication to leverage multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals through different spatial layers. Such techniques may be called spatial multiplexing. Multiple signals may be transmitted by a transmitting device through different antennas or different combinations of antennas, for example. Similarly, multiple signals may be received by a receiving device through different antennas or different combinations of antennas. Each of the multiple signals may be called a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0069]

[0075] Beamforming, sometimes called spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used in a transmitting or receiving device (e.g., base station 105, UE115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming may be achieved by combining signals communicated through the antenna elements of an antenna array such that several signals propagating in a particular direction relative to the antenna array encounter constructive interference and other signals encounter destructive interference. Coordination of signals communicated through antenna elements may involve the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried through the antenna elements associated with the device. Coordination associated with each antenna element may be defined by a beamforming weight set associated with a particular direction (e.g., relative to the antenna array of the transmitting or receiving device, or to some other direction).

[0070]

[0076] As described herein, UE115 can adjust the number of active receivers in UE115 based on the BWPs that UE is currently using (e.g., transmitting or receiving signals in) or has been instructed to be used. For example, UE115 may receive instructions from a base station to activate BWPs from a set of BWPs configured for UE115. The set of BWPs may include BWPs of the same size (e.g., the same bandwidth) or BWPs of different sizes (e.g., different bandwidths). If base station 105 instructs UE115 to activate a large BWP (e.g., a BWP with bandwidth above a threshold), UE115 can increase the number of active receivers (e.g., UE115 can activate four receivers). Alternatively, if base station 105 instructs UE115 to activate a small BWP (e.g., a BWP with bandwidth below a threshold), UE115 can decrease the number of active receivers (e.g., UE115 can activate two receivers). Furthermore, in some examples, the UE115 can monitor downlink permission from base station 105 while operating within an active BWP and adjust the number of active receivers based on whether the UE115 has received downlink permission from base station 105. Using these and other techniques described herein, the UE115 can adjust the number of active receivers based on data traffic, which can enable the UE115 to conserve power.

[0071]

[0077] Figure 2 shows an example of a wireless communication system 200 that supports receiver adjustment for wireless communication according to an aspect of the present disclosure. In some examples, the wireless communication system 200 can implement an aspect of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105-a and a UE 115-a, which may be examples of base stations 105 and UE 115 described with reference to Figure 1. In some examples, the base stations 105-a and UE 115-a may be located within a coverage area 110-a.

[0072]

[0078] In some examples, the wireless communication system 200 can support MIMO communication. MIMO communication can enable wireless devices (e.g., base station 105-a or UE 115-a) to transmit and receive two or more signals on the same time resources. In one example, two or more signals may carry the same data (e.g., for reasons of diversity). In another example, the wireless device may divide the data into two or more parts, and each of the two or more signals may carry a part of the data (e.g., spatial multiplexing).

[0073]

[0079] Regardless of whether they support MIMO or similar technologies, a receiving device (e.g., UE115-a) may include multiple receivers to receive two or more signals simultaneously. The number of receivers in a wireless device may correspond to the number of signals the wireless device can receive on the same time resources. For example, UE115-a may include four receivers 205 (e.g., receiver 205-a, receiver 205-b, receiver 205-c, and receiver 205-d), so UE115-a can receive up to four signals simultaneously from another wireless device (e.g., base station 105-a) when all four receivers 205 are active. In some examples, activating a threshold number of receivers 205 in UE115-a (e.g., four receivers) can increase data throughput in high data traffic situations (e.g., data traffic above the threshold), but activating a threshold number of receivers 205 in UE115-a in low data traffic situations (e.g., data traffic below the threshold) may not increase data throughput and may result in unnecessary power consumption.

[0074]

[0080] In some examples, a wireless device that supports MIMO communication or otherwise includes multiple receivers may undergo BWP switching or otherwise initiate the use of a BWP. For example, base station 105-a may be configured with UE115-a with a set of BWPs (e.g., up to four BWPs). In some examples, each BWP in the set of BWPs may be of the same size (e.g., spanning the same amount of frequency or bandwidth). In other examples, at least two BWPs in the set of BWPs may be of different sizes (e.g., spanning different amounts of frequency or bandwidth). In some examples, a single BWP in a set of BWPs for uplink or downlink may be active at any given time; that is, base station 105-a and UE115-a may communicate with each other using a single BWP at a given time. In some examples, base station 105-a may be configured to initiate BWP switching or otherwise initiate the use of a BWP based on the level of incoming data traffic. For example, UE115-a can initially operate within a small BWP (e.g., a 15kHz BWP). If base station 105-a anticipates high data traffic, base station 105-a can send a BWP switching instruction 210 to UE115-a (e.g., via downlink control information (DCI)) instructing UE115-a to switch to a large BWP (e.g., a 60kHz BWP). Upon receiving the BWP switching instruction 210, UE115-a switches from operating within the small BWP to operating within the large BWP and can communicate with base station 105-a using the large BWP.

[0075]

[0081] As described herein, UE115-a can adjust the number of active receivers based on the active BWP. In one example, UE115-a may consist of BWPs of different sizes. For example, UE115-a may consist of a set of BWPs, the set of BWPs including at least one large BWP and at least one small BWP. UE115-a can determine whether a set of BWPs is large or small by comparing the BWPs to a threshold. If the frequency span of a BWP is above the threshold, UE115-a can consider the BWP to be large. If the frequency span of a BWP is below the threshold, UE115-a can consider the BWP to be small. In some examples, UE115-a may receive a BWP switching instruction 210 from base station 105-a instructing UE115-a to switch to a large BWP (for example, from a small BWP or from a large BWP). As mentioned above, switching to a large BWP may indicate that data traffic is increasing or may remain above a threshold. Therefore, upon receiving a BWP switching instruction 210, UE115-a may activate (or keep active) all receivers 205 available to UE115-a. For example, UE115-a may activate (or keep active) receivers 205-a, 205-b, 205-c, and 205-d (for example, operating according to 4Rx). In some examples, UE115-a may keep all receivers 205 active until UE115-a receives another BWP switching instruction 210 from base station 105-a.

[0076]

[0082] In another example, UE115-a may activate a downlink inactivity timer when it receives a BWP switching instruction 210 instructing UE115-a to switch to a large BWP. If UE115-a does not receive a downlink permission 215 from base station 105-a before the timer expires, UE115-a may reduce the number of active receivers 205 in UE115-a (for example, by deactivating one or more receivers 205). For example, UE115-a may deactivate receivers 205-c and 205-d and keep receivers 205-a and 205-b active (for example, operating according to 2Rx). In some examples, if UE115-a detects a downlink permission 215, UE115-a may reactivate one or more receivers 205. In other words, UE115-a can detect downlink permission at some point after the downlink inactivity timer has expired and reactivate receivers 205-c and 205-d. Alternatively, UE115-a can detect downlink permission 215 before the downlink inactivity timer has expired. In such a case, UE115-a can keep all of receivers 205 active for at least the entire duration of the large BWP.

[0077]

[0083] In another example, UE115-a may receive a BWP switching instruction 210 from base station 105-a instructing UE115-a to switch to a small BWP (for example, from a small BWP or a large BWP). As mentioned above, switching to a small BWP may indicate that data traffic may decrease or remain below a threshold. That is, upon receiving the BWP switching instruction 210 from base station 105-a, UE115-a may reduce the number of active receivers 205 in UE115-a (for example, deactivating one or more of the receivers 205). For example, UE115-a may deactivate receivers 205-c and 205-d and keep receivers 205-a and 205-b active (for example, operating according to 2Rx).

[0078]

[0084] Alternatively, UE115-a may consist of BWPs of the same size. For example, UE115-a may consist of a set of BWPs, each BWP in the set being the same size (e.g., spanning the same amount of frequency). In such an example, upon receiving a BWP switching instruction 210 instructing to switch to another BWP of the same size, UE115-a may activate the downlink inactivity timer. If UE115-a has not received a downlink permission 215 from the base station before the downlink inactivity timer expires, UE115-a may reduce the number of active receivers 205 in UE115-a (e.g., deactivate one or more receivers 205). For example, UE115-a may deactivate receivers 205-c and 205-d and keep receivers 205-a and 205-b active (e.g., operating according to 2Rx). In some cases, when UE115-a detects a downlink permission 215, UE115-a can increase the number of active receivers 205 in UE115-a (for example, by reactivating one or more receivers 205). That is, UE115-a can detect a downlink permission at some point after the downlink inactivity timer has expired and reactivate receivers 205-c and 205-d. Alternatively, UE115-a can detect a downlink permission 215 before the downlink inactivity timer has expired. In such a case, UE115-a can keep all receivers 205 active for at least the entire duration of the BWP.

[0079]

[0085] In some examples, UE115-a may undergo a feedback detection procedure before it can deactivate one or more receivers 205. During the feedback detection procedure, UE115-a may send one or more messages 220 to base station 105-a, which may indicate (e.g., reflect) that UE115-a is reducing the number of its active receivers 205. For example, when switching to a small BWP or when the downlink inactivity timer expires, UE115-a may decide to reduce the number of active receivers 205 from a first number of active receivers (e.g., four receivers) to a second number of active receivers (e.g., two active receivers). Before reducing the number of active receivers in UE115-a, UE115-a may keep the first number of receivers active to receive and decode downlink signals from base station 105-a according to the format associated with the second number of active receivers and send one or more messages 220 to base station 105-a. For example, if UE115-a decides to reduce the number of active receivers from four to two, UE115-a can transmit one or more two-layer signals or messages (e.g., two-layer CSF report or two-layer SRS). In some examples, when UE115-a transmits one or more feedback messages to base station 105-a, UE115-a will use a first timer (e.g., W 2RXThe timer can be activated. If UE115-a does not receive a downlink permit 215 (e.g., a 3 / 4 layer permit) associated with a first quantity of active receivers before the expiration of the first timer, UE115-a may reduce the number of active receivers from a first quantity to a second quantity when the first timer expires. Alternatively, if UE115-a receives a downlink permit 215 (e.g., a 3 / 4 layer permit) associated with a first quantity of active receivers before the expiration of the first timer, UE115-a may activate the second timer (e.g., W FS By activating the timers, the number of active receivers can be reduced from a first quantity to a second quantity when the first and second timers have expired.

[0080]

[0086] In some examples, UE115-a can reduce the number of active receivers from a first quantity to a second quantity, and base station 105-a can send one or more downlink permissions 215 associated with the first quantity of receivers to UE115-a. In such cases, after reducing the number of active receivers, UE115-a can monitor one or more downlink permissions 215 associated with the first quantity of receivers. If downlink permissions 215 associated with the first quantity of receivers are detected, UE115-a can activate a downlink inactivity timer, increase the number of active receivers during the duration of the downlink inactivity timer, and decrease the number of active receivers when the downlink inactivity timer expires.

[0081]

[0087] Figure 3 shows an example of a BWP switching scheme 300 supporting receiver adjustment for wireless communication according to an aspect of the present disclosure. In some examples, the BWP switching scheme 300 can implement aspects of wireless communication systems 100 and 200. For example, the BWP switching scheme 300 may include a receiver 310, which may be an example of receiver 205 described with reference to Figure 2. In some examples, a UE can implement the BWP switching scheme 300 to adjust the number of active receivers in the UE.

[0082]

[0088] In some examples, a base station can be configured with multiple BWP305s (up to four BWPs) for its UE. For example, a base station can be configured with BWP305-a and BWP305-b for its UE. BWP305-a may be considered a large BWP (e.g., across an amount of frequency above a threshold), and BWP305-b may be considered a small BWP (e.g., across an amount of frequency below a threshold). The UE can initially operate within BWP305-a and communicate with the base station using four active receivers. For example, UE115 can communicate with the base station using receivers 310-a, 310-b, 310-c, and 310-d. Thus, the UE may be able to receive 3-layer and 4-layer transmissions from the base station.

[0083]

[0089] In some cases, a base station can anticipate a decrease in data traffic. In such cases, the base station can send a BWP switching instruction to the UE at t0 (for example, an activation message for a currently unused BWP305). The BWP switching instruction can instruct the UE to switch from BWP305-a to BWP305-b (for example, it can indicate that the UE should start using BWP305-b, which can implicitly indicate that the UE should stop using BWP305-a). In response to the BWP switching instruction, the UE can activate BWP305-b at t1 and reduce the number of active receivers from a first quantity (e.g., four active receivers) to a second quantity (e.g., two active receivers). For example, the UE can deactivate receivers 310-c and 310-d and keep receivers 310-a and 310-b active.

[0084]

[0090] Before reducing the number of active receivers 310 in the UE, the UE may perform a receiver feedback procedure to inform the base station of the adjustment of active receivers in the UE. For example, before reducing the number of active receivers in the UE, and after activating BWP305-b at t1, the UE may send one or more messages or other signaling to the base station according to the format associated with the second quantity of active receivers, and activate the first timer at t2. For example, the UE may send a 2-layer CSF report, a 2-layer SRS, or both to the base station. From t1 to t2, the UE operates with the first quantity of active receivers and can receive and decode downlink signals from the base station. The first timer may expire at t3. If the UE has not received one or more (or some threshold quantity) downlink permissions associated with the first quantity of active receivers from t2 to t3, the UE may reduce the number of active receivers from the first quantity of active receivers to the second quantity of active receivers at t3, or immediately thereafter. If the UE receives one or more downlink permissions associated with the first quantity of active receivers between t2 and t3, the UE may activate the second timer at t3. The second timer may expire at t4. In such a case, the UE may reduce the number of active receivers from the first quantity to the second quantity at t4 or immediately thereafter. That is, the UE may reduce the number of active receivers after the first and second timers. In some examples, the UE may operate with the second quantity of active receivers until it receives another BWP switching instruction, for example, at t5.

[0085]

[0091] In some examples, the base station can anticipate an increase in data traffic. In such a case, at t5, the base station can transmit a BWP switching instruction to the UE instructing the UE to switch from BWP305-b to BWP305-a, and at t6, BWP305-a can be activated. In one example, when BWP305-a is activated, the UE increases the number of active receivers from a second quantity of active receivers to a third quantity of active receivers, for example, until another BWP switching instruction is received at t 10 and can utilize the third quantity of active receivers. For example, the UE can activate receivers 310-c and receivers 310-d, and receivers 310-a and receivers 310-b can remain active. In another example, the UE can activate a downlink inactivity timer at t6. The downlink inactivity timer may expire at t7. If the UE receives one or more downlink grants from the base station before the downlink inactivity timer expires at t7, the UE can, for example, until another BWP switching instruction is received at t 11 and can operate using the third quantity of active receivers without adjusting the number of active receivers in the UE. If the UE does not receive one or more downlink grants from the base station before the downlink inactivity timer expires at t7, the UE can reduce the number of active receivers in the UE from the third quantity of active receivers to a fourth quantity of active receivers. For example, the UE can deactivate receivers 310-c and receivers 310-d, and receivers 310-a and receivers 310-b can remain active.

[0086]

[0092] Before reducing the number of active receivers 310 in the UE, the UE may perform receiver feedback or other signaling procedures that can inform the base station of the adjustment of active receivers in the UE. For example, before reducing the number of active receivers in the UE, the UE may activate the first timer at t8 by sending one or more feedback messages to the base station according to the format associated with the fourth quantity of active receivers. For example, the UE may send a 2-layer CSF report, a 2-layer SRS, or both to the base station. The first timer may expire at t9. If the UE has not received one or more downlink permissions associated with the third quantity of active receivers from t8 to t9, the UE may reduce the number of active receivers from the third quantity of active receivers to the fourth quantity of active receivers at t9 or immediately thereafter. If the UE has received one or more downlink permissions associated with the first quantity of active receivers from t8 to t9, the UE may activate the second timer at t9. The second timer expires at t 10 It may expire in the second timer. When the second timer expires, the UE will 10 In, or t 10 Immediately after, the number of active receivers can be reduced from a third quantity of active receivers to a fourth quantity of active receivers. That is, the UE can reduce the number of active receivers after the first timer and the second timer. In some examples, the UE can, for example, t 11 Until it receives another BWP switching instruction, the UE can operate using a fourth number of active receivers.

[0087]

[0093] Figure 4 shows an example of a BWP switching scheme 400 supporting receiver adjustment for wireless communication according to an aspect of the present disclosure. In some examples, the BWP switching scheme 400 can implement an aspect of wireless communication system 100, wireless communication system 200, or BWP switching scheme 300. For example, the BWP switching scheme 400 may include a receiver 410, which may be an example of receivers 205 and 310 described with reference to Figures 2 and 3. In some examples, a UE can implement the BWP switching scheme 400 to adjust the number of active receivers in the UE.

[0088]

[0094] In some examples, a base station can be configured with multiple BWP405s (up to four BWPs) for its UE. For example, a base station can be configured with BWP405-a and BWP405-b. BWP405-a and BWP405-b may be considered the same size (e.g., across a similar amount of frequency). The UE can initially operate within BWP405-a and communicate with the base station using a first number of active receivers (e.g., four receivers). For example, the UE can communicate with the base station using receiver 410-a, receiver 410-b, receiver 410-c, and receiver 410-d. Thus, the UE may be able to receive 3-layer and 4-layer transmissions from the base station.

[0089]

[0095] In some examples, at t0, the base station may send a BWP switching instruction to the UE instructing the UE to switch from BWP405-a to BWP405-b, and at t1, the base station may activate BWP405-b (for example, it may send an activation message for BWP405-b which may implicitly indicate that the UE should stop using BWP405-a). Once BWP405-a is activated, the UE may maintain a first quantity of active receivers and activate the downlink inactivity timer at T1. The downlink inactivity timer may expire at t2. If the UE receives one or more downlink permissions from the base station before the downlink inactivity timer expires at t2, the UE may continue to operate with the first quantity of active receivers without adjusting the number of active receivers in the UE until, for example, another BWP switching instruction is received at t6. If, in t2, the UE has not received one or more downlink permissions from the base station before the downlink inactivity timer expires, the UE may reduce the number of active receivers in the UE from a first number of active receivers to a second number of active receivers (for example, two active receivers). For example, the UE may deactivate receivers 410-c and 410-d, while receivers 410-a and 410-b remain active.

[0090]

[0096] Before reducing the number of active receivers 410 at the UE, the UE may perform a receiver feedback procedure to inform the base station of the adjustment of active receivers at the UE. For example, before reducing the number of active receivers at the UE, the UE may activate the first timer at t3 by sending one or more messages or other signaling to the base station according to the format associated with the second quantity of active receivers. For example, the UE may send a 2-layer CSF report, a 2-layer SRS, or both to the base station. The first timer may expire at t4. If the UE has not received one or more downlink permissions associated with the first quantity of active receivers between t3 and t4, the UE may reduce the number of active receivers from the first quantity of active receivers to the second quantity of active receivers at t4 or immediately thereafter. If the UE has received one or more downlink permissions associated with the first quantity of active receivers between t3 and t4, the UE may activate the second timer at t4. The second timer may expire at t5. When the second timer expires, the UE may reduce the number of active receivers from the first quantity to the second quantity at t5 or immediately thereafter. That is, the UE may reduce the number of active receivers after both the first and second timers. In some examples, the UE may operate with the second quantity of active receivers until it receives another BWP switching instruction, for example at t6.

[0091]

[0097] Figure 5 shows an example of a process flow 500 supporting receiver adjustment for wireless communications according to an aspect of the present disclosure. In some examples, the process flow 500 may implement, or be implemented by, an aspect of the wireless communications system 100, the wireless communications system 200, the BWP switching scheme 300, or the BWP switching scheme 400. For example, the process flow 500 may be implemented by base stations 105-b and UE 115-b, which may be examples of base stations 105 and UE 115 described with reference to Figures 1 and 2. The process flow 500 may involve UE 115-b adjusting the number of active receivers based on BWP switching. The following alternative examples may be implemented, in which some steps are performed in a different order than described, or not performed at all. In some cases, the steps may include additional features not described below, or further steps may be added.

[0092]

[0098] In some examples, base station 105-b can be configured with UE115-b using a set of BWPs (e.g., up to four downlink BWPs and up to four uplink BWPs). The set of BWPs may contain BWPs of the same size (e.g., BWPs spanning the same amount of resource blocks) or it may contain BWPs of different sizes (e.g., BWPs spanning different amounts of resource blocks). If the set of BWPs contains BWPs of different sizes, it may contain at least one large BWP (e.g., a BWP spanning a number of resource blocks above a threshold) and at least one small BWP (e.g., a BWP spanning a number of resource blocks below a threshold). An example of a large BWP might be a BWP spanning 273 resource blocks, and an example of a small BWP might be a BWP spanning 64 resource blocks.

[0093]

[0099] In 505, UE115-b may receive a BWP activation message from base station 105-b. The BWP activation message can instruct the activation of a BWP from a set of BWPs. For BWPs of different sizes, the BWP activation message can instruct the activation of a large BWP or a small BWP from a set of BWPs.

[0094]

[0100] In 510, UE115-b may undergo a BWP switch based on the BWP activation message received in 505. That is, the UE can deactivate a previously active BWP from the set of BWPs and activate a BWP indicated in the BWP activation message. For different BWPs, UE115-b can switch from a large BWP to a small BWP, from a small BWP to a large BWP, from a large BWP to a large BWP, or from a small BWP to a small BWP.

[0095]

[0101] In 515, UE115-b may potentially monitor downlink authorization from base station 105-b. For example, UE115-b can monitor downlink authorization from base station 105-b when a large BWP is activated in 510. In another example, UE115-b can monitor downlink authorization from base station 105-b when a BWP from a set of BWPs of the same size is activated. In some examples, a BWP activation message can trigger a downlink inactivity timer, and UE115-b can monitor downlink authorization from base station 105-b based on the downlink inactivity timer. In some examples, base station 105-b can configure UE115-b with the downlink inactivity timer via radio resource control (RRC) signaling.

[0096]

[0102] At 520, UE115-b may adjust the number of active receivers in UE115-b. In some examples, UE115-b may have a first quantity of receivers (e.g., four receivers). When a large BWP or a BWP of the same size is activated at 510, UE115-b may activate the first quantity of receivers (e.g., a threshold quantity of receivers). If UE115-b does not detect one or more downlink permissions from base station 105-b at 515 (e.g., when the downlink inactivity timer expires), UE115-b may reduce the number of active receivers in UE115-b. For example, UE115-b may keep a second quantity of receivers (e.g., two receivers) active and deactivate the rest. In some examples, if UE115-b detects a downlink permission after reducing the number of active receivers, UE115-b may increase the number of active receivers. In other words, UE115-b can activate a first quantity of receivers. Alternatively, if UE115-b detects one or more downlink permissions from base station 105-b in 515 (for example, before the downlink inactivity timer expires), UE115-b can maintain the number of active receivers in UE115-b. For example, UE115-b can keep a first quantity of receivers active. Activating a small BWP allows UE115-b to reduce the number of active receivers in UE115-b. For example, UE115-b can keep a second quantity of receivers active and deactivate the rest.

[0097]

[0103] Before UE115-b reduces the number of active receivers in UE115-b, UE115-b may undergo a receiver feedback detection procedure. For example, UE115-b may decide to keep a second number of receivers (e.g., two receivers) active and deactivate the rest. Before UE115-b can deactivate receivers, UE115-b may send one or more messages (e.g., feedback messages) to base station 105-b at 525. One or more messages may be formatted in a way that indicates, or otherwise reflects, a decrease in the number of active receivers in UE115-b. For example, if the number of active receivers decreases to two, one or more messages may be a two-layer CSF report, a two-layer SRS, or both.

[0098]

[0104] When base station 105-b sends one or more messages, UE115-b can activate a first timer and monitor for authorization from base station 105-b (for example, a 3-layer authorization or a 4-layer authorization if UE115-b has four receivers). If UE115-b fails to detect authorization from base station 105-b before the first timer expires, UE115-b can reduce the number of active receivers in UE115-b. If UE115-b detects authorization from base station 105-b, UE115-b can activate a second timer, and when the second timer expires, it can reduce the number of active receivers in UE115-b. In some examples, base station 105-b can configure UE115-b with the first and second timers via RRC signaling.

[0099]

[0105] Figure 6 shows a block diagram 600 of a device 605 supporting receiver coordination for wireless communication according to an aspect of this disclosure. Device 605 may be an example of an aspect of the UE 115 described herein. Device 605 may include a set of receivers 610, a set of transmitters 615, and a communications manager 620. Device 605 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

[0100]

[0106] Receiver 610 can provide means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to receiver adjustment for wireless communication). The information may be passed to other components of device 605. Receiver 610 may utilize a single antenna or a set of multiple antennas. Device 610 may be an example of receiver 205, receiver 310, or receiver 410 as described herein.

[0101]

[0107] Transmitter 615 can provide means for transmitting signals generated by other components of device 605. For example, transmitter 615 can transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to receiver coordination for wireless communication), user data, control information, or any combination thereof. In some examples, transmitter 615 may be co-located with receiver 610 within a transceiver module. Transmitter 615 can utilize a single antenna or a set of multiple antennas. In some cases, device 605 may include only one antenna 615 as an alternative.

[0102]

[0108] The communication manager 620, receiver 610, transmitter 615, or various combinations thereof or various components thereof may be examples of means for performing various aspects of receiver adjustment for wireless communication as described herein. For example, the communication manager 620, receiver 610, transmitter 615, or various combinations thereof or components thereof may support a method for performing one or more of the functions described herein.

[0103]

[0109] In some examples, the communications manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in hardware (for example, in communications management circuitry). The hardware may include a processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gates or transistor logic, discrete hardware components, or any combination thereof, which are configured as means for performing the functions described herein or otherwise supporting such means. In some examples, the processor and memory coupled to the processor may be configured to perform one or more of the functions described herein (for example, by the processor executing instructions stored in memory).

[0104]

[0110] As an addition or alternative, in some examples, the communications manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be implemented in code executed by a processor (for example, as communications management software or firmware). When implemented in code executed by a processor, the functions of the communications manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be performed by a general-purpose processor, DSP, central processing unit (CPU), ASIC, FPGA, or any combination thereof, or other programmable logic device (for example, configured as a means for performing the functions described in this disclosure, or otherwise supporting such means).

[0105]

[0111] In some examples, the communications manager 620 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using, or otherwise cooperating with, the receiver 610, the transmitter 615, or both. For example, the communications manager 620 may be integrated with the receiver 610, the transmitter 615, or both to receive information from the receiver 610, send information to the transmitter 615, or receive information, transmit information, or perform various other operations described herein.

[0106]

[0112] The communications manager 620 can support wireless communications in the UE as illustrated in the examples disclosed herein. For example, the communications manager 620 may be configured, or may support, means for receiving an activation message from a base station (e.g., via one or more of the receivers 610) for a second BWP of a set of BWPs configured for the UE. The communications manager 620 may be configured, or may support, means for switching from operation in a first BWP to operation in a second BWP based on the activation message for the second BWP. The communications manager 620 may be configured, or may support, means for adjusting the number of active receivers in the UE (e.g., the number of active receivers included in the set of receivers 610) based on the switching from operation in a first BWP to operation in a second BWP.

[0107]

[0113] As an addition or alternative, the communications manager 620 may support wireless communications in the UE as illustrated in the examples disclosed herein. For example, the communications manager 620 may be configured, or otherwise support such means, for receiving activation messages from a base station (e.g., via one or more of the receivers 610) to a BWP in a set of BWPs configured for the UE. The communications manager 620 may be configured, or otherwise support such means, for monitoring one or more downlink permissions while operating within a BWP, so that one or more downlink permissions result in receiving one or more downlink signals within an active BWP. The communications manager 620 may be configured, or otherwise support such means, for adjusting the number of active receivers in the UE (e.g., the number of active receivers included in the set of receivers 610) based on whether one or more downlink permissions have been detected.

[0108]

[0114] By including or configuring a communications manager 620 as described herein, device 605 (e.g., a processor controlling a receiver 610, a transmitter 615, a communications manager 620, or a combination thereof, or otherwise coupled thereto) can support techniques for reduced power consumption. Utilizing a small number of active receivers (e.g., two receivers) during periods of low data traffic can enable device 605 to conserve power.

[0109]

[0115] Figure 7 shows a block diagram 700 of a device 705 supporting receiver coordination for wireless communication according to an aspect of the present disclosure. Device 705 may be an example of an aspect of device 605 or UE115 described herein. Device 705 may include a set of receivers 710, a set of transmitters 715, and a communications manager 720. Device 705 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

[0110]

[0116] Receiver 710 can provide means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to receiver adjustment for wireless communication). The information may be passed to other components of device 705. Receiver 710 may utilize a single antenna or a set of multiple antennas. Device 710 may be an example of receiver 205, receiver 310, receiver 410, or receiver 610 as described herein.

[0111]

[0117] The transmitter 715 can provide means for transmitting signals generated by other components of device 705. For example, the transmitter 715 can transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to receiver coordination for wireless communication), user data, control information, or any combination thereof. In some examples, the transmitter 715 may be co-located with the receiver 710 within the transceiver module. Each transmitter 715 can utilize a single antenna or a set of multiple antennas. In some cases, device 705 may include only one antenna 715 as an alternative.

[0112]

[0118] Device 705 or its various components may be examples of means for performing various forms of receiver adjustment for wireless communications as described herein. For example, communication manager 720 may include message receiver 725, BWP switching manager 730, active receiver manager 735, monitoring component 740, or any combination thereof. Communication manager 720 may be an example of a form of communication manager 620 as described herein. In some examples, communication manager 720 or its various components may be configured to use or cooperate with receiver 710, transmitter 715, or both, to perform various operations (e.g., receiving, monitoring, transmitting). For example, communication manager 720 may be integrated with receiver 710, transmitter 715, or both to receive information from receiver 710, send information to transmitter 715, receive information, transmit information, or perform various other operations as described herein.

[0113]

[0119] The communications manager 720 can support wireless communications in the UE as illustrated in the examples disclosed herein. The message receiver 725 may be configured, or may support, means for receiving an activation message from a base station (for example, via one or more of the receivers 710) for a second BWP among a set of BWPs configured for the UE. The BWP switching manager 730 may be configured, or may support, means for switching from operation in a first BWP to operation in a second BWP based on an activation message for a second BWP. The active receiver manager 735 may be configured, or may support, means for adjusting the number of active receivers in the UE (for example, the number of active receivers included in the set of receivers 710) based on switching from operation in a first BWP to operation in a second BWP.

[0114]

[0120] As an addition or alternative, the communications manager 720 may support wireless communications in the UE as illustrated in the examples disclosed herein. The message receiver 725 may be configured, or may support, means for receiving activation messages from a base station (e.g., via one or more of the receivers 710) for a BWP in a set of BWPs configured for the UE. The monitoring component 740 may be configured, or may support, means for monitoring one or more downlink permissions while operating within a BWP, for one or more downlink permissions to receive one or more downlink signals within an active BWP. The active receiver manager 735 may be configured, or may support, means for adjusting the number of active receivers in the UE (e.g., the number of active receivers included in the set of receivers 710) based on whether one or more downlink permissions have been detected.

[0115]

[0121] Figure 8 shows a block diagram 800 of a communications manager 820 supporting receiver tuning for wireless communication according to an aspect of this disclosure. The communications manager 820 may be an example of an aspect of communications manager 620, communications manager 720, or both as described herein. The communications manager 820 or its various components may be an example of means for performing various aspects of receiver tuning for wireless communication as described herein. For example, the communications manager 820 may include a message receiver 825, a BWP switching manager 830, an active receiver manager 835, a monitoring component 840, a timer manager 850, a feedback manager 855, or any combination thereof. Each of these components may communicate with one another directly or indirectly (for example, via one or more buses).

[0116]

[0122] The communications manager 820 can support wireless communications in the UE as illustrated in the examples disclosed herein. The message receiver 825 may be configured, or otherwise can support, means for receiving an activation message from a base station for a second BWP among a set of BWPs configured for the UE. The BWP switching manager 830 may be configured, or otherwise can support, means for switching from operation in a first BWP to operation in a second BWP based on an activation message for a second BWP. The active receiver manager 835 may be configured, or otherwise can support, means for adjusting the number of active receivers in the UE based on switching from operation in a first BWP to operation in a second BWP.

[0117]

[0123] In some examples, the monitoring component 840 may be configured as a means for monitoring one or more downlink authorizations from a base station while operating within a second BWP, or it may support such means, and adjusting the number of active receivers in the UE is based on monitoring one or more downlink authorizations from a base station.

[0118]

[0124] In some examples, the timer manager 850 may be configured, or otherwise support, a means for activating timers based on switching from operation in a first BWP to operation in a second BWP, and monitoring one or more downlink permissions from the base station is timer-based.

[0119]

[0125] In some cases, the bandwidth associated with the second BWP is greater than the threshold. In some cases, adjusting the number of active receivers in the UE is based on the bandwidth associated with the second BWP being greater than the threshold.

[0120]

[0126] In some examples, the monitoring component 840 may be configured, or otherwise support such a means, for failing to detect one or more downlink permissions from a base station while operating within a second BWP. In some examples, to adjust the number of active receivers in the UE, the active receiver manager 835 may be configured, or otherwise support such a means, for reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on failure to detect one or more downlink permissions from a base station.

[0121]

[0127] In some examples, the feedback manager 855 may be configured, or otherwise support, a means for transmitting signaling to a base station based on a second number of active receivers before reducing the number of active receivers at the UE.

[0122]

[0128] In some examples, to support the transmission of signaling based on a second quantity of active receivers, the feedback manager 855 may be configured, or otherwise support such means, for transmitting CSF, SRS, or both to a base station in accordance with the format associated with the second quantity of active receivers.

[0123]

[0129] In some examples, the timer manager 850 may be configured as a means for activating timers based on transmitting signaling, or may support such means, and the reduction of the number of active receivers in the UE from a first number of active receivers to a second number of active receivers is performed based on the expiration of the timer.

[0124]

[0130] In some examples, the timer manager 850 may be configured, or otherwise can support, a means for activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, and the reduction of the number of active receivers in the UE is performed based on the expiration of the timer and the second timer.

[0125]

[0131] In some examples, the monitoring component 840 may be configured, or otherwise support such means, for detecting one or more second downlink permissions from a base station while operating within a second BWP and after reducing the number of active receivers from a first number of active receivers to a second number of active receivers. In some examples, the active receiver manager 835 may be configured, or otherwise support such means, for increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers based on the detection of one or more second downlink permissions from a base station.

[0126]

[0132] In some examples, to support adjusting the number of active receivers in the UE, the active receiver manager 835 may be configured, or otherwise support such a means, for reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on the bandwidth associated with a second BWP falling below a threshold.

[0127]

[0133] In some examples, the feedback manager 855 may be configured, or otherwise support, a means for transmitting signaling to a base station based on a second number of active receivers before reducing the number of active receivers at the UE.

[0128]

[0134] In some examples, to support the transmission of signaling based on a second quantity of active receivers, the feedback manager 855 may be configured, or otherwise support such means, for transmitting CSF, SRS, or both to a base station in accordance with the format associated with the second quantity of active receivers.

[0129]

[0135] In some examples, the timer manager 850 may be configured as a means for activating timers based on transmitting signaling, or may support such means, and the reduction of the number of active receivers from a first number of active receivers to a second number of active receivers is performed based on the expiration of the timer.

[0130]

[0136] In some examples, the timer manager 850 may be configured, or otherwise can support, means for activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, and the reduction of the number of active receivers in the UE is performed based on the expiration of the timer and the second timer.

[0131]

[0137] In some examples, to support adjusting the quantity of active receivers in the UE, the active receiver manager 835 may be configured as a means for reducing the quantity of active receivers in the UE from a first quantity of active receivers to a second quantity of active receivers, or may otherwise support such a means, and the methods further include: In some examples, to support adjusting the quantity of active receivers in the UE, the monitoring component 840 may be configured as a means for detecting one or more downlink permissions from a base station to schedule communications associated with a first quantity of active receivers, or may otherwise support such a means. In some examples, to support adjusting the quantity of active receivers in the UE, the active receiver manager 835 may be configured as a means for increasing the quantity of active receivers from a second quantity of active receivers to a first quantity of active receivers during a time period based on detecting one or more downlink permissions, or may otherwise support such a means. In some examples, to support adjusting the quantity of active receivers in the UE, the active receiver manager 835 may be configured as a means for reducing the quantity of active receivers in the UE from a first quantity of active receivers to a second quantity of active receivers after a time period, or may otherwise support such a means.

[0132]

[0138] As an addition or alternative, the communications manager 820 may support wireless communications in the UE, as illustrated in the examples disclosed herein. In some examples, the message receiver 825 may be configured, or otherwise support such means, for receiving activation messages from a base station to a BWP among a set of BWPs configured for the UE. The monitoring component 840 may be configured, or otherwise support such means, for monitoring one or more downlink permissions while operating within a BWP, so that one or more downlink permissions may be for receiving one or more downlink signals within an active BWP. In some examples, the active receiver manager 835 may be configured, or otherwise support such means, for adjusting the number of active receivers in the UE based on whether one or more downlink permissions have been detected.

[0133]

[0139] In some examples, the monitoring component 840 may be configured, or otherwise support such a means, for failing to detect one or more downlink permissions from a base station while operating within the BWP. In some examples, to adjust the number of active receivers in the UE, the active receiver manager 835 may be configured, or otherwise support such a means, for reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on failure to detect one or more downlink permissions from a base station.

[0134]

[0140] In some examples, the feedback manager 855 may be configured, or otherwise support, a means for transmitting signaling to a base station based on a second number of active receivers before reducing the number of active receivers at the UE.

[0135]

[0141] In some examples, to support the transmission of signaling based on a second quantity of active receivers, the feedback manager 855 may be configured, or otherwise support such means, for transmitting CSF, SRS, or both to a base station in accordance with the format associated with the second quantity of active receivers.

[0136]

[0142] In some examples, the timer manager 850 may be configured as a means for activating timers based on transmitting signaling, or may support such means, and the reduction of the number of active receivers in the UE from a first number of active receivers to a second number of active receivers is performed based on the expiration of the timer.

[0137]

[0143] In some examples, the timer manager 850 may be configured, or otherwise can support, means for activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, and the reduction of the number of active receivers in the UE is performed based on the expiration of the timer and the second timer.

[0138]

[0144] In some examples, the monitoring component 840 may be configured, or otherwise support such means, for detecting one or more second downlink permissions from a base station while operating within the BWP and after reducing the number of active receivers from a first number of active receivers to a second number of active receivers. In some examples, the active receiver manager 835 may be configured, or otherwise support such means, for increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers based on detecting one or more second downlink permissions from a base station.

[0139]

[0145] In some examples, to support adjusting the quantity of active receivers in the UE, the active receiver manager 835 may be configured as a means for reducing the quantity of active receivers in the UE from a first quantity of active receivers to a second quantity of active receivers, or may otherwise support such a means, and the methods further include. In some examples, to support adjusting the quantity of active receivers in the UE, the monitoring component 840 may be configured as a means for detecting one or more downlink permissions from a base station to schedule communications associated with a first quantity of active receivers, or may otherwise support such a means. In some examples, to support adjusting the quantity of active receivers in the UE, the active receiver manager 835 may be configured as a means for increasing the quantity of active receivers from a second quantity of active receivers to a first quantity of active receivers during a time period based on detecting one or more downlink permissions, or may otherwise support such a means, and the methods further include. In some examples, to support adjustment of the number of active receivers in the UE, the active receiver manager 835 may be configured, or otherwise support such means, for reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers after a period of time.

[0140]

[0146] In some examples, each BWP in a set of multiple BWPs has the same bandwidth.

[0141]

[0147] Figure 9 shows a diagram of a system 900 including a device 905 that supports receiver coordination for wireless communication according to an aspect of this disclosure. Device 905 may be an example of, or include, a component of, device 605, device 705, or UE 115 as described herein. Device 905 can wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 905 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, such as a communications manager 920, an input / output (I / O) controller 910, a transceiver 915, an antenna 925, a memory 930, a code 935, and a processor 940. These components may communicate electronically or be coupled (e.g., operably, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 945).

[0142]

[0148] The I / O controller 910 can manage input / output signals for device 905. The I / O controller 910 can also manage peripherals not integrated into device 905. In some cases, the I / O controller 910 can represent a physical connection or port to an external peripheral. In some cases, the I / O controller 910 can utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, the I / O controller 910 can represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 910 may be implemented as part of a processor, such as processor 940. In some cases, a user can interact with device 905 via the I / O controller 910 or through hardware components controlled by the I / O controller 910.

[0143]

[0149] In some cases, device 905 may include a single antenna 925. However, in some other cases, device 905 may have two or more antennas 925 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. Transceiver 915 may communicate bidirectionally via one or more antennas 925, a wired link, or a wireless link, as described herein. For example, transceiver 915 may represent a wireless transceiver and communicate bidirectionally with another wireless transceiver. Transceiver 915 may also include a modem for modulating packets, providing the modulated packets to one or more antennas 925 for transmission, and demodulating packets received from one or more antennas 925. Transceiver 915, or transceiver 915 and one or more antennas 925, may be examples of one or more transmitters 615, one or more transmitters 715, one or more receivers 610, one or more receivers 710, or any combination thereof or components thereof, as described herein.

[0144]

[0150] Memory 930 may include random access memory (RAM) and read-only memory (ROM). Memory 930 can store computer-readable, computer-executable code 935, which, when executed by the processor 940, contains instructions that cause device 905 to perform the various functions described herein. Code 935 may be stored in a non-temporary computer-readable medium, such as system memory or another type of memory. In some cases, code 935 may not be directly executable by the processor 940, but (for example, when compiled and executed) can cause the computer to perform the functions described herein. In some cases, memory 930 may include a basic I / O system (BIOS) that can control basic hardware or software operations, such as, among other things, interaction with peripheral components or devices.

[0145]

[0151] The processor 940 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 940 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in memory (e.g., memory 930) to cause device 905 to perform various functions (e.g., functions or tasks supporting receiver coordination for wireless communication). For example, device 905 or components of device 905 may include the processor 940 and memory 930 coupled to the processor 940, and the processor 940 and memory 930 may be configured to perform the various functions described herein.

[0146]

[0152] The communications manager 920 can support wireless communications in the UE as illustrated in the examples disclosed herein. For example, the communications manager 920 may be configured, or may support, means for receiving an activation message from a base station (e.g., via transceiver 915) for a second BWP among a set of BWPs configured for the UE. The communications manager 920 may be configured, or may support, means for switching from operation in a first BWP to operation in a second BWP based on the activation message for the second BWP. The communications manager 920 may be configured, or may support, means for adjusting the number of active receivers in the UE (e.g., the number of active receivers included in transceiver 915) based on switching from operation in a first BWP to operation in a second BWP.

[0147]

[0153] As an addition or alternative, the communications manager 920 may support wireless communications in the UE, as illustrated in the examples disclosed herein. For example, the communications manager 920 may be configured, or otherwise support such means, for receiving activation messages from a base station (e.g., via transceiver 915) for a BWP among a set of BWPs configured for the UE. The communications manager 920 may be configured, or otherwise support such means, for monitoring one or more downlink permissions while operating within a BWP, for one or more downlink permissions to receive one or more downlink signals within an active BWP. The communications manager 920 may be configured, or otherwise support such means, for adjusting the number of active receivers in the UE (e.g., the number of active receivers included in transceiver 915) based on whether one or more downlink permissions have been detected.

[0148]

[0154] By including or configuring a communications manager 920 as described in the examples herein, device 905 can support techniques for reduced power consumption.

[0149]

[0155] In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using, or otherwise cooperating with, the transceiver 915, one or more antennas 925, or any combination thereof (for example, the communications manager 920 may be configured to transmit or receive signals or messages described herein via the transceiver 915). Although the communications manager 920 is shown as a separate component, in some examples, one or more functions described with reference to the communications manager 920 may be supported by or performed by the processor 940, memory 930, code 935, or any combination thereof. For example, code 935 may include instructions that can be executed by the processor 940 to cause device 905 to perform various aspects of receiver adjustment for wireless communications described herein, or the processor 940 and memory 930 may be configured to perform or support such operations.

[0150]

[0156] Figure 10 shows a flowchart illustrating a method 1000 supporting receiver adjustment for wireless communication according to an aspect of this disclosure. The operation of method 1000 may be implemented by a UE or its components described herein. For example, the operation of method 1000 may be performed by a UE 115 described with reference to Figures 1 to 9. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0151]

[0157] In 1005, the method may include receiving an activation message from a base station for a second BWP among a set of BWPs configured for the UE. The operation of 1005 may be performed according to the examples disclosed herein. In some examples, the operation of 1005 may be performed by a message receiver 825 described with reference to Figure 8. In addition or alternatively, means for performing 1005 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0152]

[0158] In 1010, the method may include switching from operation in the first BWP to operation in the second BWP based on an activation message for the second BWP. The operation of 1010 may be performed according to the examples disclosed herein. In some examples, the mode of operation of 1010 may be performed by a BWP switching manager 830 described with reference to Figure 8. In addition or alternatively, means for performing 1010 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0153]

[0159] In 1015, the method may include adjusting the number of active receivers in the UE based on switching from operation in a first BWP to operation in a second BWP. Operation 1015 may be performed according to the examples disclosed herein. In some examples, a mode of operation of 1015 may be performed by an active receiver manager 835 described with reference to Figure 8. In addition or alternatively, means for performing 1015 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0154]

[0160] Figure 11 shows a flowchart illustrating a method 1100 supporting receiver adjustment for wireless communication according to an aspect of this disclosure. The operation of method 1100 may be implemented by a UE or its components described herein. For example, the operation of method 1100 may be performed by a UE 115 described with reference to Figures 1 to 9. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0155]

[0161] In 1105, the method may include receiving an activation message from a base station for a second BWP among a set of BWPs configured for the UE. The operation of 1105 may be performed according to the examples disclosed herein. In some examples, the operation of 1105 may be performed by a message receiver 825 described with reference to Figure 8. In addition or alternatively, means for performing 1105 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0156]

[0162] In 1110, the method may include switching from operation in the first BWP to operation in the second BWP based on an activation message for the second BWP. The operation of 1110 may be performed according to the examples disclosed herein. In some examples, the mode of operation of 1110 may be performed by a BWP switching manager 830 described with reference to Figure 8. In addition or alternatively, means for performing 1110 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0157]

[0163] In 1115, the method may include monitoring one or more downlink authorizations from a base station while operating within a second BWP. The operation of 1115 may be performed according to the examples disclosed herein. In some examples, the mode of operation of 1115 may be performed by a monitoring component 840 described with reference to Figure 8. In addition or alternatively, means for performing 1115 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0158]

[0164] In 1120, the method may include adjusting the number of active receivers in the UE based on switching from operation in a first BWP to operation in a second BWP, and monitoring one or more downlink permissions from a base station. Operation of 1120 may be performed according to the examples disclosed herein. In some examples, a mode of operation of 1120 may be performed by an active receiver manager 835 described with reference to Figure 8. In addition or alternatively, means for performing 1120 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0159]

[0165] Figure 12 shows a flowchart illustrating a method 1200 supporting receiver adjustment for wireless communication according to an aspect of this disclosure. The operation of method 1200 may be implemented by a UE or its components described herein. For example, the operation of method 1200 may be performed by a UE 115 described with reference to Figures 1 to 9. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0160]

[0166] In 1205, the method may include receiving an activation message from a base station for a second BWP among a set of BWPs configured for the UE. The operation of 1205 may be performed according to the examples disclosed herein. In some examples, the operation of 1205 may be performed by a message receiver 825 described with reference to Figure 8. In addition or alternatively, means for performing 1205 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0161]

[0167] In 1210, the method may include switching from operation in the first BWP to operation in the second BWP based on an activation message for the second BWP. Operation of 1210 may be performed according to the examples disclosed herein. In some examples, the mode of operation of 1210 may be performed by a BWP switching manager 830 described with reference to Figure 8. Additional or alternative means for performing 1210 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0162]

[0168] In 1215, the method may include switching from operation in a first BWP to operation in a second BWP, and adjusting the number of active receivers in the UE based on the bandwidth associated with the second BWP being greater than a threshold. Operation of 1215 may be performed according to the examples disclosed herein. In some examples, a mode of operation of 1215 may be performed by an active receiver manager 835 described with reference to Figure 8. In addition or alternatively, means for performing 1215 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0163]

[0169] Figure 13 shows a flowchart illustrating a method 1300 supporting receiver adjustment for wireless communication according to an aspect of this disclosure. The operation of method 1300 may be implemented by a UE or its components described herein. For example, the operation of method 1300 may be performed by a UE 115 described with reference to Figures 1 to 9. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0164]

[0170] In 1305, the method may include receiving an activation message from a base station for a second BWP among a set of BWPs configured for the UE. The operation of 1305 may be performed according to the examples disclosed herein. In some examples, the operation of 1305 may be performed by a message receiver 825 described with reference to Figure 8. In addition or alternatively, means for performing 1305 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0165]

[0171] In 1310, the method may include switching from operation in the first BWP to operation in the second BWP based on an activation message for the second BWP. The operation of 1310 may be performed according to the examples disclosed herein. In some examples, the mode of operation of 1310 may be performed by a BWP switching manager 830 described with reference to Figure 8. In addition or alternatively, means for performing 1310 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0166]

[0172] In 1315, the method may include reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on the bandwidth associated with the second BWP falling below a threshold. The operation of 1315 may be performed according to the examples disclosed herein. In some examples, the operation of 1315 may be performed by an active receiver manager 835 described with reference to Figure 8. In addition or alternatively, means for performing 1315 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0167]

[0173] Figure 14 shows a flowchart illustrating a method 1400 supporting receiver adjustment for wireless communication according to an aspect of this disclosure. The operation of method 1400 may be implemented by a UE or its components described herein. For example, the operation of method 1400 may be performed by a UE 115 described with reference to Figures 1 to 9. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0168]

[0174] In 1405, the method may include receiving an activation message from a base station for one of a set of BWPs configured for the UE. The operation of 1405 may be performed according to the examples disclosed herein. In some examples, the operation of 1405 may be performed by a message receiver 825 described with reference to Figure 8. In addition or alternatively, means for performing 1405 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0169]

[0175] In 1410, the method may include monitoring one or more downlink permissions while operating within the BWP, where one or more downlink permissions are for receiving one or more downlink signals within the active BWP. The operation of 1410 may be performed according to the examples disclosed herein. In some examples, the operation of 1410 may be performed by a monitoring component 840 described with reference to Figure 8. In addition or alternatively, means for performing 1410 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0170]

[0176] In 1415, the method may include adjusting the number of active receivers in the UE based on whether one or more downlink permissions have been detected. The operation of 1415 may be performed according to the examples disclosed herein. In some examples, the operation of 1415 may be performed by an active receiver manager 835 described with reference to Figure 8. In addition or alternatively, means for performing 1415 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0171]

[0177] Figure 15 shows a flowchart illustrating a method 1500 supporting receiver adjustment for wireless communication according to an aspect of this disclosure. The operation of method 1500 may be implemented by a UE or its components described herein. For example, the operation of method 1500 may be performed by a UE 115 described with reference to Figures 1 to 9. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0172]

[0178] In 1505, the method may include receiving an activation message from a base station for a BWP among a set of BWPs configured for the UE. The operation of 1505 may be performed according to the examples disclosed herein. In some examples, the mode of operation of 1505 may be performed by a message receiver 825 described with reference to Figure 8. In addition or alternatively, means for performing 1505 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0173]

[0179] In 1510, the method may include failing to detect one or more downlink permissions from a base station while operating within the BWP. The operation of 1510 may be performed according to the examples disclosed herein. In some examples, the operation of 1510 may be performed by a monitoring component 840 described with reference to Figure 8. In addition or alternatively, means for performing 1510 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0174]

[0180] In 1515, the method may include reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers based on the failure to detect one or more downlink permissions from a base station. The operation of 1515 may be performed according to the examples disclosed herein. In some examples, the operation of 1515 may be performed by an active receiver manager 835 described with reference to Figure 8. In addition or alternatively, means for performing 1515 may include, but are not necessarily, an antenna 925, a transceiver 915, a communications manager 920, a memory 930 (including code 935), a processor 940, and / or a bus 945.

[0175]

[0181] The following provides an overview of the aspects of this disclosure.

[0176]

[0182] Embodiment 1: A method for wireless communication in a UE, comprising: receiving an activation message from a base station for a second BWP of a set of BWPs configured for the UE; switching from operation in a first BWP to operation in a second BWP based at least in part on the activation message for the second BWP; and adjusting the number of active receivers in the UE based at least in part on switching from operation in a first BWP to operation in a second BWP.

[0177]

[0183] Embodiment 2: The method of Embodiment 1, further comprising monitoring one or more downlink authorizations from a base station while operating within a second BWP, wherein adjusting the number of active receivers in the UE is at least in part based on monitoring one or more downlink authorizations from a base station.

[0178]

[0184] Embodiment 3: The method of Embodiment 2, further comprising activating a timer, at least in part, on switching from operation in a first BWP to operation in a second BWP, and monitoring one or more downlink permissions from a base station, at least in part, on the timer.

[0179]

[0185] Embodiment 4: Any method of Embodiments 1 to 3, wherein the bandwidth associated with the second BWP is greater than a threshold, and adjusting the number of active receivers in the UE is at least partially based on the fact that the bandwidth associated with the second BWP is greater than a threshold.

[0180]

[0186] Embodiment 5: The method of Embodiment 4, further comprising failing to detect one or more downlink permissions from a base station while operating within a second BWP, wherein adjusting the number of active receivers in the UE comprises reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, at least in part, based on the failure to detect one or more downlink permissions from a base station.

[0181]

[0187] Embodiment 6: The method of Embodiment 5, further comprising transmitting signaling to a base station based at least partially to a second number of active receivers before reducing the number of active receivers in the UE.

[0182]

[0188] Embodiment 7: The method of Embodiment 6, comprising transmitting at least partially based signaling to a second quantity of active receivers to a base station, in accordance with the format associated with the second quantity of active receivers, CSF, SRS, or both.

[0183]

[0189] Embodiment 8: Any method of Embodiments 6-7, further comprising activating a timer based on transmitting a signaling, wherein the number of active receivers in the UE is reduced from a first number of active receivers to a second number of active receivers, at least in part, based on the expiration of the timer.

[0184]

[0190] Embodiment 9: The method of Embodiment 8, further comprising activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, wherein the number of active receivers in the UE is reduced at least in part based on the expiration of the timer and the second timer.

[0185]

[0191] Embodiment 10: A method of any embodiment 5 to 9, further comprising detecting one or more second downlink permissions from a base station while operating within a second BWP, and increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers, at least in part, based on detecting one or more second downlink permissions from a base station, after reducing the number of active receivers from a first number of active receivers to a second number of active receivers.

[0186]

[0192] Embodiment 11: A method of any two embodiments 1 to 3, wherein adjusting the number of active receivers in the UE when the bandwidth associated with the second BWP falls below a threshold comprises reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, at least in part on the bandwidth associated with the second BWP falling below a threshold.

[0187]

[0193] Embodiment 12: The method of Embodiment 11, further comprising transmitting signaling to a base station based at least partially to a second number of active receivers before reducing the number of active receivers in the UE.

[0188]

[0194] Embodiment 13: The method of Embodiment 12, comprising transmitting at least partially based signaling to a second quantity of active receivers to a base station, in accordance with the format associated with the second quantity of active receivers, CSF, SRS, or both.

[0189]

[0195] Embodiment 14: Any method of Embodiments 12 to 13, further comprising activating a timer based on transmitting a signaling, wherein the number of active receivers is reduced from a first number of active receivers to a second number of active receivers, at least in part, based on the expiration of the timer.

[0190]

[0196] Embodiment 15: The method of Embodiment 14, further comprising activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, wherein the number of active receivers in the UE is reduced at least in part based on the expiration of the timer and the second timer.

[0191]

[0197] Embodiment 16: A method of any embodiment 1 to 15, wherein adjusting the number of active receivers in a UE comprises reducing the number of active receivers in a UE from a first number of active receivers to a second number of active receivers, the method further comprises detecting one or more downlink permissions from a base station for scheduling communications associated with the first number of active receivers, increasing the number of active receivers from a second number of active receivers to a first number of active receivers during a time period, and reducing the number of active receivers from a first number of active receivers to a second number of active receivers after the time period, at least based on detecting one or more downlink permissions.

[0192]

[0198] Embodiment 17: A method for wireless communication in a UE, comprising: receiving an activation message from a base station for a BWP among a plurality of BWPs configured for the UE; monitoring one or more downlink permits while operating within the BWP; and adjusting the number of active receivers in the UE, at least in part, based on whether one or more downlink permits have been detected, so that one or more downlink permits receive one or more downlink signals within an active BWP.

[0193]

[0199] Embodiment 18: The method of Embodiment 17, further comprising failing to detect one or more downlink permissions from a base station while operating within a BWP, wherein adjusting the number of active receivers in the UE comprises reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, at least in part, based on the failure to detect one or more downlink permissions from a base station.

[0194]

[0200] Embodiment 19: The method of Embodiment 18, further comprising transmitting signaling to a base station based at least partially to a second number of active receivers before reducing the number of active receivers in the UE.

[0195]

[0201] Embodiment 20: The method of Embodiment 19, comprising transmitting at least partially based signaling to a second quantity of active receivers to a base station, in accordance with a format associated with the second quantity of active receivers, CSF, SRS, or both.

[0196]

[0202] Embodiment 21: Any method of Embodiments 19 to 20, further comprising activating a timer based on transmitting a signaling, wherein the number of active receivers in the UE is reduced from a first number of active receivers to a second number of active receivers, at least in part, based on the expiration of the timer.

[0197]

[0203] Embodiment 22: The method of Embodiment 21, further comprising activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, wherein the number of active receivers in the UE is reduced at least in part based on the expiration of the timer and the second timer.

[0198]

[0204] Embodiment 23: Any method of Embodiments 18 to 22, further comprising detecting one or more second downlink permissions from a base station while operating within a BWP, and increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers, at least based on detecting one or more second downlink permissions from a base station, after reducing the number of active receivers from a first number of active receivers to a second number of active receivers.

[0199]

[0205] Embodiment 24: A method of any embodiment 17 to 23, wherein adjusting the number of active receivers in a UE comprises reducing the number of active receivers in a UE from a first number of active receivers to a second number of active receivers, the method further comprises detecting one or more downlink permissions from a base station for scheduling communications associated with the first number of active receivers, increasing the number of active receivers from a second number of active receivers to a first number of active receivers during a time period, and reducing the number of active receivers from a first number of active receivers to a second number of active receivers after the time period, at least based on detecting one or more downlink permissions.

[0200]

[0206] Embodiment 25: Any method from Embodiments 17 to 24, wherein each of the multiple BWPs has the same bandwidth.

[0201]

[0207] Embodiment 26: A device for wireless communication in a UE, comprising a processor, a transceiver coupled to the processor and having a plurality of receivers, and a memory coupled to the processor, wherein the memory and the processor are configured to cause the device to perform any of the methods in Embodiments 1 to 16.

[0202]

[0208] Embodiment 27: Apparatus for wireless communication in a UE, comprising at least one means for performing any of the methods of Embodiments 1 to 16.

[0203]

[0209] Embodiment 28: A non-temporary computer-readable medium for storing code for wireless communication in a UE, wherein the code comprises instructions that can be executed by a processor to perform any of the methods of Embodiments 1 to 16.

[0204]

[0210] Embodiment 29: A device for wireless communication in a UE, comprising a processor, a transceiver coupled to the processor and having a plurality of receivers, and a memory coupled to the processor, wherein the memory and the processor are configured to cause the device to perform any of the methods of Embodiments 17 to 25.

[0205]

[0211] Embodiment 30: Apparatus for wireless communication in a UE, comprising at least one means for performing any of the methods of Embodiments 17 to 25.

[0206]

[0212] Embodiment 31: A non-temporary computer-readable medium for storing code for wireless communication in a UE, wherein the code comprises instructions that can be executed by a processor to perform any of the methods of Embodiments 17 to 25.

[0207]

[0213] It should be noted that the methods described herein describe possible implementations, that the operations and steps may be rearranged or otherwise modified, and that other implementations are possible. Furthermore, two or more embodiments of the methods may be combined.

[0208]

[0214] While embodiments of LTE, LTE-A, LTE-A Pro, or NR systems may be described as examples, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used for the majority of the description, the techniques described herein are applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi®), IEEE 802.16 (WiMAX®), IEEE 802.20, Flash-OFDM, and other systems and wireless technologies not expressly mentioned herein.

[0209]

[0215] The information and signals described herein may be represented using any of the following different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout this description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or optical particles, or any combination thereof.

[0210]

[0216] The various exemplary blocks and components described in this disclosure may be implemented or run using general-purpose processors, DSPs, ASICs, CPUs, FPGAs or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but alternatively, a processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working with a DSP core, or any other such configuration).

[0211]

[0217] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or a combination thereof. When implemented in software executed by a processor, the functions may be stored on or transmitted via computer-readable media as one or more instructions or codes. Other examples and implementations are within the scope of this disclosure and the accompanying claims. For example, depending on the nature of the software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination thereof. Features implementing the functions may also be physically located in various locations, including the distribution of parts of the function so that they are implemented in different physical locations.

[0212]

[0218] Computer-readable media include both non-temporary computer storage media and communication media, including any media that facilitates the transfer of computer programs from one location to another. Non-temporary storage media can be any available media that can be accessed by a general-purpose or dedicated computer. Examples, but not limited to, non-temporary computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM®), flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-temporary media that can be used to carry or store desired program code means in the form of instructions or data structures, and can be accessed by a general-purpose or dedicated computer, or a general-purpose or dedicated processor. Any connection is also appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used herein, disk and disc include CD, LaserDisc®, OpticalDisc, Digital Multipurpose Disc (DVD), FloppyDisc, and Blu-ray® disc, where disk typically reproduces data magnetically and disc optically reproduces data by laser. Any combination of the above is also included in the scope of computer-readable media.

[0213]

[0219] As used herein, including in the claims, “or” in a list of items (for example, a list of items ending with a phrase such as “at least one of” or “one or more of”) means an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, as used herein, the phrase “based on” should not be interpreted as a reference to a closed set of conditions. For example, an exemplary step described as “based on condition A” may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase “based on” should be interpreted similarly to the phrase “at least partially based on.”

[0214]

[0220] The term “decide” or “to decide” encompasses a wide variety of actions, and therefore “deciding” can include calculating, calculating, processing, deriving, investigating, searching (for example, through searching within a table, database, or other data structure), confirming, etc. “Deciding” can also include receiving (such as receiving information), accessing (such as accessing data in memory), etc. Furthermore, “deciding” can include resolving, selecting, choosing, establishing, and other similar actions.

[0215]

[0221] In the attached diagrams, similar components or features may have the same reference label. Furthermore, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes similar components. Where only the first reference label is used herein, its description is applicable to any similar component having the same first reference label, regardless of the second reference label or any other subsequent reference labels.

[0216]

[0222] The descriptions herein with respect to the accompanying drawings describe exemplary configurations and do not necessarily represent all examples that may be implemented or that fall within the scope of the claims. The term “example” as used herein means “acting as an example, case, or illustration,” and does not imply “preferred” or “advantageous over other examples.” Detailed descriptions include specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0217]

[0223] The descriptions herein are provided to enable those skilled in the art to create or use this disclosure. Various modifications to this disclosure will be obvious to those skilled in the art, and the general principles defined herein may apply to other variations without departing from the scope of this disclosure. Accordingly, this disclosure should be given the broadest scope that is consistent with the principles and novel features disclosed herein, and is not limited to the examples and designs described herein. The invention described in the original claims of this application is listed below. [C1] A method for wireless communication in user equipment (UE), Receiving an activation message from the base station for a second bandwidth portion of the multiple bandwidth portions configured for the UE, Switching from operation in the first bandwidth portion to operation in the second bandwidth portion based at least in part on the activation message for the second bandwidth portion, Adjusting the number of active receivers in the UE, at least in part, based on switching from operation within the first bandwidth portion to operation within the second bandwidth portion, A method that includes [a certain feature]. [C2] Monitoring one or more downlink authorizations from the base station while operating within the second bandwidth portion, wherein adjusting the number of active receivers in the UE is at least in part based on monitoring one or more downlink authorizations from the base station. A method of C1 that further includes the following: [C3] Activating the timer, at least in part on switching from operation within the first bandwidth portion to operation within the second bandwidth portion, wherein monitoring the one or more downlink permissions from the base station is at least in part on the timer, A method using C2 that further enhances this feature. [C4] The bandwidth associated with the second bandwidth portion is greater than the threshold, Adjusting the number of active receivers in the UE is at least partially based on the bandwidth associated with the second bandwidth portion being greater than the threshold. The method described in C1. [C5] Further comprising failing to detect one or more downlink permissions from the base station while operating within the second bandwidth portion, Adjusting the number of active receivers in the UE is, Based at least in part on the failure to detect one or more downlink permissions from the base station, reduce the number of active receivers in the UE from a first number of active receivers to a second number of active receivers. A method for C4 comprising: [C6] The method of C5, further comprising transmitting signaling to the base station based at least partially to the second number of active receivers before reducing the number of active receivers in the UE. [C7] Transmitting the signaling, at least partially, to the second number of active receivers is: The method according to C6, comprising transmitting channel state feedback, a sounding reference signal, or both to the base station in accordance with the format associated with the second number of active receivers. [C8] Activating the timer based on transmitting the signaling, wherein the reduction of the number of active receivers in the UE from a first number of active receivers to a second number of active receivers is performed at least in part on the expiration of the timer. A method for C6 that further includes the following features. [C9] Activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, wherein the reduction of the number of active receivers in the UE is performed at least in part on the expiration of the timer and the second timer. A method using C8 that further includes these features. [C10] Detecting one or more second downlink permissions from the base station while operating within the second bandwidth portion and after reducing the number of active receivers from the first number of active receivers to the second number of active receivers, Increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers, at least in part, based on detecting one or more second downlink permissions from the base station, A method using C5 that further includes these features. [C11] The bandwidth associated with the second bandwidth portion is lower than the threshold, and adjusting the number of active receivers in the UE is: Reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, at least partially based on the fact that the bandwidth associated with the second bandwidth portion is lower than the threshold, A method of C1 comprising: [C12] The method of C11, further comprising transmitting signaling to the base station based at least partially to a second number of active receivers before reducing the number of active receivers in the UE. [C13] Transmitting the signaling, at least partially, to the second number of active receivers is: The method according to C12, comprising transmitting channel state feedback, a sounding reference signal, or both to the base station in a format associated with the second number of active receivers. [C14] Activating the timer based on transmitting the signaling, wherein the reduction of the number of active receivers from a first number of active receivers to a second number of active receivers is performed at least in part on the expiration of the timer. A method for C12 that further includes the following features. [C15] Activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, wherein the reduction of the number of active receivers in the UE is performed at least in part on the expiration of the timer and the second timer. A method using C14, which further includes the following features. [C16] Adjusting the number of active receivers in the UE is: The method comprises reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, The aforementioned method, Detecting one or more downlink permissions from the base station to schedule communications associated with the first number of active receivers, Based at least in part on detecting one or more downlink permissions, the number of active receivers is increased from a second number of active receivers to a first number of active receivers during a period of time, After the aforementioned time period, the number of active receivers is reduced from the first number of active receivers to the second number of active receivers, A method of C1 that further includes the following: [C17] A method for wireless communication in user equipment (UE), Receiving an activation message from the base station for one of the multiple bandwidth portions configured for the UE, The system monitors one or more downlink grants while operating within the aforementioned bandwidth portion, and the one or more downlink grants are for receiving one or more downlink signals within the active bandwidth portion. Adjusting the number of active receivers in the UE, at least in part, based on whether one or more downlink permissions have been detected. A method that includes [a certain feature]. [C18] Further comprising failing to detect one or more downlink permissions from the base station while operating within the bandwidth portion, Adjusting the number of active receivers in the UE is, Based at least in part on the failure to detect one or more downlink permissions from the base station, reduce the number of active receivers in the UE from a first number of active receivers to a second number of active receivers. A method for C17 that includes the following: [C19] The method of C18, further comprising transmitting signaling to the base station based at least in part to a second number of active receivers before reducing the number of active receivers in the UE. [C20] Transmitting the signaling, at least partially, to the second number of active receivers is: The method according to C19, comprising transmitting channel state feedback, a sounding reference signal, or both to the base station in a format associated with the second number of active receivers. [C21] Activating the timer based on transmitting the signaling, wherein the reduction of the number of active receivers in the UE from a first number of active receivers to a second number of active receivers is performed at least in part on the expiration of the timer. A method using C19, which further includes the following features. [C22] Activating a second timer based on whether one or more second downlink permissions are detected during the duration associated with the timer, wherein the reduction of the number of active receivers in the UE is performed at least in part on the expiration of the timer and the second timer. A method for C21 that further incorporates these features. [C23] Detecting one or more second downlink permissions from the base station while operating within the bandwidth portion and after reducing the number of active receivers from the first number of active receivers to the second number of active receivers, Increasing the number of active receivers in the UE from a second number of active receivers to a third number of active receivers, at least in part, based on detecting one or more second downlink permissions from the base station, A method using C18, which further incorporates these features. [C24] Adjusting the number of active receivers in the UE is The method comprises reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, The aforementioned method, Detecting one or more downlink permissions from the base station to schedule communications associated with the first number of active receivers, Based at least in part on detecting one or more downlink permissions, the number of active receivers is increased from a second number of active receivers to a first number of active receivers during a period of time, After the aforementioned time period, the number of active receivers is reduced from the first number of active receivers to the second number of active receivers, A method using C17, which further includes the following features. [C25] The method according to C17, wherein each of the multiple bandwidth portions has the same bandwidth. [C26] A device for wireless communication, The user equipment (UE) processor and A transceiver coupled to the processor and equipped with multiple receivers, The memory coupled to the aforementioned processor, The memory and the processor are provided with Receiving an activation message from the base station via the transceiver for a second bandwidth portion of a plurality of bandwidth portions configured for the UE, Switching from operation in the first bandwidth portion to operation in the second bandwidth portion based at least in part on the activation message for the second bandwidth portion, Adjusting the number of active receivers included in the plurality of receivers, at least in part, based on switching from operation within the first bandwidth portion to operation within the second bandwidth portion, A device configured to cause the aforementioned device to perform the above action. [C27] The memory and processor are, Monitoring one or more downlink authorizations from the base station while operating within the second bandwidth portion, wherein adjusting the number of active receivers in the UE is at least in part based on monitoring one or more downlink authorizations from the base station. The apparatus according to C26, further configured to cause the apparatus to perform the above. [C28] The bandwidth associated with the second bandwidth portion is greater than the threshold, The memory and processor are configured to cause the device to adjust the number of active receivers, at least partially based on the fact that the bandwidth associated with the second bandwidth portion is greater than the threshold. The apparatus described in C26. [C29] A device for wireless communication, The user equipment (UE) processor and A transceiver coupled to the processor and equipped with multiple receivers, The memory coupled to the aforementioned processor, The memory and the processor are provided with The transceiver receives an activation message from the base station for one of the multiple bandwidth portions configured for the UE, The system monitors one or more downlink grants while operating within the aforementioned bandwidth portion, and the one or more downlink grants are for receiving one or more downlink signals within the active bandwidth portion. Adjusting the number of active receivers included in the plurality of receivers, at least in part, based on whether one or more downlink permissions have been detected. A device configured to cause the aforementioned device to perform the above action. [C30] The memory and the processor are The device is further configured to fail to detect one or more downlink permissions from the base station while operating within the aforementioned bandwidth portion, The apparatus according to C29, wherein, in order to adjust the number of active receivers, the memory and processor are configured to cause the apparatus to reduce the number of active receivers included in the plurality of receivers from a first number of active receivers to a second number of active receivers, at least in part on the failure to detect the one or more downlink permissions from the base station.

Claims

1. A method for wireless communication in user equipment (UE), Receiving an activation message from a network device for a second bandwidth portion of a plurality of bandwidth portions configured for the UE, Based on the activation message for the second bandwidth portion, the system switches from operation within the first bandwidth portion to operation within the second bandwidth portion. Adjusting the number of active receivers in the UE based on the bandwidth associated with the second bandwidth portion that is above or below a threshold, and further based on switching from operation in the first bandwidth portion to operation in the second bandwidth portion, wherein the number of active receivers in the UE corresponds to the number of signals that the UE receives on the same time resources. A method that includes [a certain feature].

2. Monitoring one or more downlink authorizations from the network device while operating within the second bandwidth portion, and thereby adjusting the number of active receivers in the UE, is based on monitoring one or more downlink authorizations from the network device. Activating a timer based on switching from operation within the first bandwidth portion to operation within the second bandwidth portion, wherein monitoring the one or more downlink permissions from the network device comprises monitoring the one or more downlink permissions after the timer has been activated. The method according to claim 1, further comprising:

3. If the bandwidth associated with the second bandwidth portion is greater than the threshold, Adjusting the number of active receivers in the UE is based on the bandwidth associated with the second bandwidth portion being greater than the threshold, The method according to claim 1.

4. The operation within the second bandwidth portion further includes failing to detect one or more downlink permissions from the network device, and adjusting the number of active receivers in the UE. Based on the failure to detect one or more downlink permissions from the network device, the number of active receivers in the UE is reduced from a first number of active receivers to a second number of active receivers, Before reducing the number of active receivers in the UE, signaling based on the second number of active receivers is transmitted to the network device, The method according to claim 3, comprising:

5. Transmitting the signaling based on the second number of active receivers is, Transmitting channel state feedback, a sounding reference signal, or both to the network device in a manner that indicates or reflects a decrease in the number of active receivers in the UE, Activating the timer based on transmitting the signaling, and thereby reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, is performed based on the timer. When one or more second downlink permissions are detected during the duration associated with the timer, activating the second timer and, thereby reducing the number of active receivers in the UE is performed based on the expiration of the timer and the second timer. The method according to claim 4, comprising:

6. The bandwidth associated with the second bandwidth portion is lower than the threshold, and adjusting the number of active receivers in the UE is: Based on the fact that the bandwidth associated with the second bandwidth portion is lower than the threshold, the number of active receivers in the UE is reduced from a first number of active receivers to a second number of active receivers, Before reducing the number of active receivers in the UE, signaling based on the second number of active receivers is transmitted to the network device, The method according to claim 1, comprising:

7. Transmitting the signaling based on the second number of active receivers is, The method according to claim 6, further comprising transmitting channel state feedback, a sounding reference signal, or both to the network device in a manner that indicates or reflects a decrease in the number of active receivers in the UE.

8. Activating the timer based on the transmission of the signaling, and thereby reducing the number of active receivers from a first number of active receivers to a second number of active receivers, is performed based on the expiration of the timer. When one or more second downlink permissions are detected during the duration associated with the timer, activating the second timer and, thereby reducing the number of active receivers in the UE is performed based on the expiration of the timer and the second timer. The method according to claim 6, further comprising:

9. Adjusting the number of active receivers in the UE is, The method includes reducing the number of active receivers in the UE from a first number of active receivers to a second number of active receivers, The aforementioned method, Detecting one or more downlink permissions from the network device to schedule communications associated with the first number of active receivers, Based on detecting one or more downlink permissions, the number of active receivers is increased from a second number of active receivers to a first number of active receivers during a time period, After the aforementioned time period, the number of active receivers is reduced from the first number of active receivers to the second number of active receivers, The method according to claim 1, further comprising:

10. A device for wireless communication, The processor of the user equipment (UE), A transceiver coupled to the processor and equipped with multiple receivers, The memory coupled to the aforementioned processor, An apparatus comprising, wherein the memory and the processor are configured to cause the apparatus to perform the method according to any one of claims 1 to 9.

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