Techniques for user equipment power saving
By identifying trigger conditions in the user equipment (UE), the measurement and reporting of high-bandwidth NR/5G cell channels are selectively suppressed, solving the high power consumption problem of the UE in the high frequency range and achieving finer-grained power savings and connection efficiency.
Patent Information
- Application Number
- CN202180079103.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-11-17
- Filing Date
- 2021-11-18
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2041-11-18
AI Technical Summary
Existing technologies cannot effectively reduce the high power consumption caused by the high frequency range bandwidth of NR/5G cells in user equipment, especially when communicating with LTE or low-bandwidth NR cells, where conventional technologies lack fine-grained power-saving measures.
By identifying triggering conditions in the UE, such as low power state or low throughput, measurements and reports with high-bandwidth NR/5G cellular channels can be selectively suppressed, avoiding unnecessary procedural execution and allowing the UE to establish connections in a lower frequency range.
It achieves finer-grained power savings in NR/5G communication, reduces UE power consumption, and ensures connection stability and efficiency.
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Figure CN116636259B_ABST
Abstract
Description
[0001] Cross-referencing
[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 120,580, entitled "TECHNIQUES FORUSER EQUIPMENT POWER SAVING," filed December 2, 2020, and U.S. Patent Application No. 17 / 529,113, entitled "TECHNIQUES FORUSER EQUIPMENT POWER SAVING," filed November 17, 2021, by Santham et al., each of which is assigned to the assignee of this application. Technical Field
[0003] The following relates to wireless communication, including technologies for power saving in user equipment.
[0004] background
[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. These systems can 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-A Advanced (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ various technologies, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication from multiple communication devices, which may also be referred to as User Equipment (UE).
[0006] Some wireless communications systems can support wireless communications over multiple radio access technologies, over multiple frequency ranges, or both. In some cases, a user equipment (UE) can experience different levels of power consumption when communicating via different radio access technologies, different channels (e.g., different frequency ranges), or both. For example, communicating via an NR or 5G radio access technology can result in higher power consumption at the UE as compared to communicating via an LTE or 4G radio access technology. Further, channels associated with higher frequency ranges within an NR / 5G radio access technology can be associated with larger bandwidths as compared to channels associated with lower frequency ranges within the NR / 5G radio access technology. In this regard, due to the larger bandwidth, higher frequency ranges within the NR / 5G radio access technology can result in higher power consumption at the UE as compared to lower frequency ranges. Some conventional techniques have attempted to reduce power consumption at the UE based on the bandwidth of a given cell, but such conventional techniques have been found to be deficient.
[0007] SUMMARY
[0008] The described techniques relate to improved methods, systems, devices, and apparatuses that support techniques for user equipment power saving. Generally, the described techniques relate to improved power saving techniques for user equipment (UE). Specifically, the techniques described herein can enable a UE to establish a wireless connection with a New Radio (NR) and / or Fifth Generation (5G) cell in a lower frequency range (e.g., a smaller bandwidth) in order to prevent a substantial increase in power consumption at the UE. In this regard, the techniques described herein can provide improved power saving granularity by enabling a UE to select (or avoid) particular channels supported by a NR / 5G cell (e.g., avoid a particular frequency range / bandwidth) as compared to some power saving techniques that enforce a blanket prohibition on NR / 5G communications. For example, while communicating with a first cell (e.g., a Long Term Evolution (LTE) cell, a low bandwidth NR cell), a UE can identify a triggering condition for implementing a power saving technique. The triggering condition can include a low power state of the UE, a low throughput at the UE, a low mobility state at the UE, and / or the like. Subsequently, the UE can receive an indication to cause the UE to perform a procedure (e.g., a cell addition procedure, a cell handover procedure) with a second cell (e.g., a high bandwidth NR cell). In this example, the UE can compare a bandwidth of a channel associated with the second cell to a bandwidth threshold. If the bandwidth of the channel of the second cell is greater than or equal to the bandwidth threshold (and thus associated with a high power consumption), the UE can refrain from completing the procedure with the respective channel of the secondary cell. For example, the UE can refrain from measuring a reference signal associated with the channel of the second cell and / or reporting a measurement associated with the channel of the second cell in order to refrain from completing the procedure with the respective channel. Additionally or alternatively, the UE can enter an idle state or transmit an indication of a radio link failure (RLF) in order to refrain from completing the procedure with the respective channel. By enabling a UE to perform (or refrain from performing) the procedure with the channel of the second cell on a per-channel basis, the techniques described herein can support power saving techniques at the UE while at the same time allowing the UE to establish a NR / 5G connection associated with a lower power consumption.
[0009] A method for wireless communication at a user equipment (UE) is described. The method can include receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell, identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both, identifying at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both, comparing the at least one bandwidth associated with the second cell to a threshold bandwidth, and performing at least one action associated with a procedure based on the comparison.
[0010] An apparatus for wireless communication at a UE is described. The apparatus can include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions can be executable by the processor to cause the apparatus to receive, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell, identify that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both, identify at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both, compare the at least one bandwidth associated with the second cell to a threshold bandwidth, and perform at least one action associated with a procedure based on the comparison.
[0011] Another apparatus for wireless communication at a UE is described. The apparatus can include means for receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell, means for identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both, means for identifying at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both, means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth, and means for performing at least one action associated with a procedure based on the comparison.
[0012] A non-transitory computer-readable medium storing code for wireless communications at a UE is described. The code can include instructions executable by a processor to receive, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell, identify that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both, identify at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both, compare the at least one bandwidth associated with the second cell to a threshold bandwidth, and perform at least one action associated with a procedure based on the comparison.
[0013] In some examples of the method, apparatuses, and non-transitory computer- readable media described herein, performing the at least one action associated with the procedure can include operations, features, means, or instructions for refraining from completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel being greater than or equal to the threshold bandwidth.
[0014] In some examples of the method, apparatuses, and non-transitory computer- readable media described herein, performing the at least one action associated with the procedure can include operations, features, means, or instructions for completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel being less than or equal to the threshold bandwidth.
[0015] In some examples of the method, apparatuses, and non-transitory computer- readable media described herein, identifying the at least one bandwidth associated with the second cell can include operations, features, means, or instructions for determining the at least one bandwidth associated with the second cell based on a prior wireless connection between the second cell and the UE, where the downlink transmission can be received after communicating with the second cell, and storing the at least one bandwidth in a memory.
[0016] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, identifying at least one bandwidth associated with the second cell can include operations, features, means, or instructions for transmitting, to the first cell, the second cell, the second UE, or any combination thereof, a request for information associated with at least one bandwidth of the second cell based on satisfying a triggering condition, and receiving an indication of the at least one bandwidth associated with the second cell in response to the request, where identifying the at least one bandwidth can be based on the indication.
[0017] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for identifying that a triggering condition has been satisfied can be based on identifying that the UE can be in an idle mode of operation or a connected mode of operation.
[0018] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for transmitting, to the first cell, an uplink transmission indicating that a triggering condition is satisfied, and receiving, from the first cell based on transmitting the uplink transmission, a second downlink transmission including information for performing at least one action associated with a procedure.
[0019] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, one or more reference signals associated with a set of channels supported by the second cell, performing a set of measurements for the one or more reference signals received from the second cell, and transmitting, to the first cell based on performing the set of measurements, a measurement report, where the measurement report omits measurements associated with one or more channels of the set of channels based on at least one bandwidth associated with the one or more channels being greater than or equal to a threshold bandwidth.
[0020] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, a reference signal associated with a channel supported by the second cell, where the at least one bandwidth can be associated with the channel, and refraining from performing a measurement for the received reference signal based on the at least one bandwidth associated with the channel being greater than or equal to a threshold bandwidth.
[0021] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for transmitting, to the first cell, an uplink transmission associated with a radio link failure at the UE based on the at least one bandwidth being greater than or equal to the threshold bandwidth.
[0022] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, one or more reference signals associated with a set of channels supported by the second cell, performing a set of measurements for the one or more reference signals received from the second cell, and transmitting, to the first cell, a measurement report based on performing the set of measurements, where the measurement report omits measurements associated with one or more channels of the set of channels based on the at least one bandwidth associated with the one or more channels being greater than or equal to the threshold bandwidth.
[0023] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, a reference signal associated with a channel supported by the second cell, and refraining from performing a measurement for the received reference signal based on the at least one bandwidth associated with the channel being greater than or equal to the threshold bandwidth.
[0024] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for transmitting, to the first cell, an uplink transmission associated with a radio link failure at the UE based on the at least one bandwidth being greater than or equal to the threshold bandwidth.
[0025] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for entering an idle mode of operation based on the at least one bandwidth being greater than or equal to the threshold bandwidth.
[0026] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for identifying the at least one bandwidth associated with the second cell based on an indication of the at least one bandwidth included within the downlink transmission.
[0027] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the procedure includes a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof.
[0028] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the first cell can be associated with a first radio access technology and the second cell can be associated with a second radio access technology different from the first radio access technology.
[0029] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the first radio access technology includes a long term evolution radio access technology, a fourth generation radio access technology, or both, and the second radio access technology includes a new radio access technology, a fifth generation radio access technology, or both.
[0030] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the first cell and the second cell can be associated with a common radio access technology.
[0031] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the common radio access technology includes a new radio access technology, a fifth generation radio access technology, or both.
[0032] A method for wireless communication at a UE is described. The method can include identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both; identifying at least one bandwidth associated with a second cell based on the trigger condition being satisfied, the at least one bandwidth based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both; comparing the at least one bandwidth associated with the second cell to a threshold bandwidth; selectively adjusting one or more parameters for performing one or more actions associated with the second cell based on the comparison; and performing at least one action associated with the procedure based on the adjustment.
[0033] An apparatus for wireless communication at a UE is described. The apparatus can include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions can be executable by the processor to cause the apparatus to identify that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both; identify at least one bandwidth associated with a second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both; compare the at least one bandwidth associated with the second cell to a threshold bandwidth; selectively adjust one or more parameters for performing one or more actions associated with the second cell based on the comparison; and perform at least one action associated with a procedure based on the adjustment.
[0034] Another apparatus for wireless communication at a UE is described. The apparatus can include means for identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both; means for identifying at least one bandwidth associated with a second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both; means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth; means for selectively adjusting one or more parameters for performing one or more actions associated with the second cell based on the comparison; and means for performing at least one action associated with a procedure based on the adjustment.
[0035] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code can include instructions executable by a processor to identify that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both; identify at least one bandwidth associated with a second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both; compare the at least one bandwidth associated with the second cell to a threshold bandwidth; selectively adjust one or more parameters for performing one or more actions associated with the second cell based on the comparison; and perform at least one action associated with a procedure based on the adjustment.
[0036] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, performing the at least one action associated with the procedure can include operations, features, means, or instructions for refraining from completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel supported by the second cell being greater than or equal to a threshold bandwidth.
[0037] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, performing the at least one action associated with the procedure can include operations, features, means, or instructions for completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel supported by the second cell being less than or equal to a threshold bandwidth.
[0038] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, identifying the at least one bandwidth associated with the second cell can include operations, features, means, or instructions for determining the at least one bandwidth associated with the second cell based on a previous wireless connection between the second cell and the UE, and storing the at least one bandwidth in a memory.
[0039] Some examples of the method, apparatuses, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for transmitting, to the first cell, an uplink transmission indicating that the trigger condition is satisfied, and receiving, from the first cell based on transmitting the uplink transmission, a downlink transmission including additional information for performing the at least one action associated with the procedure.
[0040] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, selectively adjusting the one or more parameters can include operations, features, means, or instructions for selectively increasing a reference signal received power threshold, a reference signal received quality threshold, or both.
[0041] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, and as further described in the following paragraphs, the one or more reference signals can be received from the second cell in a first set of resources, and the one or more reference signals can be received from the second cell in a second set of resources.
[0042] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, a measurement associated with the one or more channels can satisfy a reference signal received power threshold if the measurement can be greater than or equal to the reference signal received power threshold, and the measurement associated with the one or more channels can satisfy a reference signal received quality threshold if the measurement can be greater than or equal to the reference signal received quality threshold.
[0043] A method for wireless communication at a UE is described. The method can include receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell, identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied, comparing, based on the trigger condition being satisfied, one or more bandwidths associated with the second cell to a threshold bandwidth, and performing, based on the comparison, at least one action associated with a procedure.
[0044] An apparatus for wireless communication at a UE is described. The apparatus can include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions can be executable by the processor to cause the apparatus to receive, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell, identify that a trigger condition associated with one or more operational parameters at the UE is satisfied, compare, based at least in part on the trigger condition being satisfied, one or more bandwidths associated with the second cell to a threshold bandwidth, and perform, based on the comparison, at least one action associated with a procedure.
[0045] Another apparatus for wireless communication at a UE is described. The apparatus can include means for receiving, from a first cell, a downlink transmission including information to perform one or more actions associated with a second cell, means for identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied, means for comparing, based on the trigger condition being satisfied, one or more bandwidths associated with the second cell to a threshold bandwidth, and means for performing, based on the comparison, at least one action associated with a procedure.
[0046] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code can include instructions executable by a processor to receive, from a first cell, a downlink transmission including information to perform one or more actions associated with a second cell, identify that a trigger condition associated with one or more operational parameters at the UE is satisfied, compare, based at least in part on the trigger condition being satisfied, one or more bandwidths associated with the second cell to a threshold bandwidth, and perform, based on the comparison, at least one action associated with a procedure.
[0047] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for transmitting, to the first cell, an uplink transmission indicating that the trigger condition associated with the one or more operational parameters at the UE can have been satisfied, and receiving, based on transmitting the uplink transmission, a second downlink transmission from the first cell including information to perform the at least one action associated with the procedure.
[0048] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action associated with the procedure can include operations, features, means, or instructions for refraining from completing a procedure associated with a channel supported by the second cell based on the bandwidth associated with the channel failing to satisfy the threshold bandwidth.
[0049] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action associated with the procedure can include operations, features, means, or instructions for completing a procedure associated with a channel supported by the second cell based on the bandwidth associated with the channel satisfying the threshold bandwidth.
[0050] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, one or more reference signals associated with a set of channels supported by the second cell, performing a set of measurements for the one or more reference signals received from the second cell, and transmitting a measurement report to the first cell based on performing the set of measurements, where the measurement report omits measurements associated with one or more channels of the set of channels based on a bandwidth associated with the one or more channels satisfying a threshold bandwidth.
[0051] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, a reference signal associated with a channel supported by the second cell, and refraining from performing a measurement for the received reference signal based on a bandwidth associated with the channel satisfying a threshold bandwidth.
[0052] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for transmitting, to the first cell, an uplink transmission associated with an RLF at the UE based on one or more bandwidths satisfying a threshold bandwidth.
[0053] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, one or more reference signals associated with a set of channels supported by the second cell, performing a set of measurements for the one or more reference signals received from the second cell, and transmitting a measurement report to the first cell based on performing the set of measurements, where the measurement report omits measurements associated with one or more channels of the set of channels based on a bandwidth associated with the one or more channels satisfying a threshold bandwidth.
[0054] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for receiving, from the second cell, a reference signal associated with a channel supported by the second cell, and refraining from performing a measurement for the received reference signal based on a bandwidth associated with the channel satisfying a threshold bandwidth.
[0055] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for transmitting, to the first cell, an uplink transmission associated with an RLF at the UE based on the one or more bandwidths satisfying a threshold bandwidth.
[0056] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action can include operations, features, means, or instructions for entering an idle mode of operation based on the one or more bandwidths satisfying a threshold bandwidth.
[0057] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for determining the one or more bandwidths associated with the second cell based on an indication of the one or more bandwidths included within a downlink transmission.
[0058] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for determining the one or more bandwidths associated with the second cell based on a previous wireless connection between the UE and the second cell.
[0059] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for transmitting a request for information associated with one or more bandwidths of the second cell; and receiving an indication of the one or more bandwidths of the second cell based on transmitting the request.
[0060] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the one or more operating parameters at the UE associated with the triggering condition include a power level of the UE, an absence of an external power source coupled to the UE, a mobility state of the UE, or any combination thereof.
[0061] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, identifying that the triggering condition associated with the one or more operating parameters at the UE can be satisfied can include operations, features, means, or instructions for identifying that a power level of the UE satisfies a power level threshold, identifying that a mobility state of the UE satisfies a mobility state threshold, or both.
[0062] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the one or more operating parameters at the UE associated with the trigger condition include a throughput of a wireless communication at the UE, an energy efficiency of the wireless communication at the UE, an RSRP metric of the wireless communication at the UE, or any combination thereof.
[0063] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, identifying that the trigger condition associated with the one or more operating parameters at the UE can be satisfied can include operations, features, means, or instructions for identifying that the throughput satisfies a threshold throughput, identifying that the energy efficiency satisfies a threshold energy efficiency, identifying that the RSRP metric satisfies a threshold RSRP, or any combination thereof.
[0064] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the procedure associated with the second cell includes a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof.
[0065] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the bandwidth of the one or more bandwidths associated with the second cell can be greater than or equal to the threshold bandwidth if the bandwidth satisfies the threshold bandwidth.
[0066] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first cell can be associated with a first radio access technology and the second cell can be associated with a second radio access technology different from the first radio access technology.
[0067] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first radio access technology includes an LTE radio access technology, a 4G radio access technology, or both, and the second radio access technology includes an NR access technology, a 5G radio access technology, or both.
[0068] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first cell and the second cell can be associated with a common radio access technology.
[0069] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the common radio access technology includes an NR access technology, a 5G radio access technology, or both.
[0070] A method for wireless communication at a UE is described. The method can include identifying, while communicating with a first cell, that a trigger condition associated with one or more operational parameters at the UE is satisfied, comparing, based on the trigger condition being satisfied, one or more bandwidths associated with a second cell to a threshold bandwidth, selectively adjusting, based on the comparison, one or more parameters for performing one or more actions associated with the second cell, and performing, based on the adjusting, at least one action associated with a procedure.
[0071] An apparatus for wireless communication at a UE is described. The apparatus can include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions can be executable by the processor to cause the apparatus to identify, while communicating with a first cell, that a trigger condition associated with one or more operational parameters at the UE is satisfied, compare, based at least in part on the trigger condition being satisfied, one or more bandwidths associated with a second cell to a threshold bandwidth, selectively adjust, based on the comparison, one or more parameters for performing one or more actions associated with the second cell, and perform, based on the adjusting, at least one action associated with a procedure.
[0072] Another apparatus for wireless communication at a UE is described. The apparatus can include means for identifying, while communicating with a first cell, that a trigger condition associated with one or more operational parameters at the UE is satisfied, means for comparing, based on the trigger condition being satisfied, one or more bandwidths associated with a second cell to a threshold bandwidth, means for selectively adjusting, based on the comparison, one or more parameters for performing one or more actions associated with the second cell, and means for performing, based on the adjusting, at least one action associated with a procedure.
[0073] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code can include instructions executable by a processor to identify, while communicating with a first cell, that a trigger condition associated with one or more operational parameters at the UE is satisfied, compare, based at least in part on the trigger condition being satisfied, one or more bandwidths associated with a second cell to a threshold bandwidth, selectively adjust, based on the comparison, one or more parameters for performing one or more actions associated with the second cell, and perform, based on the adjusting, at least one action associated with a procedure.
[0074] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means for, or instructions for transmitting an uplink transmission to the first cell, the uplink transmission indicating that a trigger condition associated with one or more operating parameters at the UE can have been satisfied, and receiving a second downlink transmission from the first cell based on transmitting the uplink transmission, the second downlink transmission including additional information for performing at least one action associated with the procedure.
[0075] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action associated with the procedure can include operations, features, means for, or instructions for refraining from completing the procedure associated with the channel based on the adjustment and a bandwidth associated with the channel supported by the second cell satisfying a threshold bandwidth.
[0076] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, performing the at least one action associated with the procedure can include operations, features, means for, or instructions for completing the procedure associated with the channel based on the adjustment and a bandwidth associated with the channel supported by the second cell failing to satisfy a threshold bandwidth.
[0077] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the one or more parameters include a cell reselection priority metric.
[0078] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, selectively adjusting the one or more parameters can include operations, features, means for, or instructions for selectively increasing an RSRP threshold, an RSRQ threshold, or both.
[0079] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, and the method, apparatuses, and non-transitory computer- readable medium can further include operations, features, means for, or instructions for receiving one or more reference signals from the second cell, the one or more reference signals being associated with a set of channels supported by the second cell, performing a set of measurements for the one or more reference signals received from the second cell, and determining that measurements associated with one or more channels satisfy the adjusted RSRP threshold, the adjusted RSRQ threshold, or both, where performing the at least one action can be based on the determination that the measurements associated with the one or more channels satisfy the adjusted RSRP threshold, the adjusted RSRQ threshold, or both.
[0080] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the measurement associated with the one or more channels can be greater than or equal to the adjusted RSRP threshold if the measurement satisfies the adjusted RSRP threshold, and the measurement associated with the one or more channels can be greater than or equal to the adjusted RSRQ threshold if the measurement satisfies the adjusted RSRQ threshold. BRIEF DESCRIPTION OF DRAWINGS
[0082] Figure 1 An example of a process flow that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated.
[0083] Figure 2 An example of a process flow that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated.
[0084] Figure 3 An example of a process flow that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated.
[0085] Figure 4 An example of a process flow that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated.
[0086] Figure 5 An example of a process flow that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated.
[0087] Figure 6 An example of a process flow that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated.
[0088] Figure 7 An example of a process flow that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated.
[0089] Figure 8 And 9 A block diagram of a device that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown.
[0090] Figure 10 A block diagram of a communications manager that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown.
[0091] Figure 11 A diagram of a system including a device that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown.
[0092] Figures 12 to 16A flow diagram illustrating a method that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown.
[0093] DETAILED DESCRIPTION
[0094] Some wireless communications systems can support wireless communications over multiple radio access technologies, over multiple frequency ranges, or both. In some cases, a user equipment (UE) can experience different power consumption levels when communicating via different radio access technologies, frequency ranges, or both. For example, communicating via a new radio (NR) or fifth generation (5G) radio access technology can result in higher power consumption at the UE as compared to communicating via a long term evolution (LTE) or fourth generation (4G) radio access technology. Moreover, channels associated with higher frequency ranges (e.g., a frequency range of 60-100 MHz) within the NR / 5G radio access technology can be associated with larger bandwidths as compared to channels associated with lower frequency ranges (e.g., a frequency range of 20-40 MHz) within the NR / 5G radio access technology. Accordingly, increasing channel bandwidth can be associated with higher power consumption at the UE.
[0095] In cases where the UE is communicating with a LTE / 4G cell, the network can attempt to perform a cell reselection procedure, a cell addition procedure, or another procedure in order to establish a connection between the UE and a NR / 5G cell. Although communication with the NR / 5G cell can result in improved wireless communications, establishing this connection can result in increased power consumption at the UE. Accordingly, in cases where the UE has low battery or otherwise needs to conserve power, performing a cell selection / addition procedure using the NR / 5G cell can be undesirable. Some conventional techniques can enable the UE to completely preempt any wireless connection with the NR / 5G cell. However, these conventional techniques do not enable the UE to establish a NR / 5G connection within a channel associated with a lower frequency range in order to take advantage of more efficient NR / 5G communications while mitigating a significant increase in power consumption.
[0096] Accordingly, the techniques described herein relate to improved power saving techniques for a UE. In particular, the techniques described herein can enable a UE to establish a wireless connection with a channel of a NR / 5G cell associated with a lower frequency range (e.g., a smaller bandwidth) in order to prevent a substantial increase in power consumption at the UE. In this regard, the techniques described herein can provide improved power saving granularity by enabling the UE 115 to perform (or refrain from performing) a procedure with a particular channel of a second cell on a per-channel basis based on a bandwidth associated with each of the respective channels (e.g., a stored bandwidth) as compared to some conventional power saving techniques that enforce a blanket prohibition on NR / 5G communications.
[0097] For example, while communicating with a first cell (e.g., an LTE cell, a low-bandwidth NR cell), a UE can identify a triggering condition for implementing a power saving technique. The triggering condition can include a low power state of the UE, a low throughput at the UE, a low mobility state at the UE, and / or the like. Subsequently, the UE can receive an indication to cause the UE to perform a procedure (e.g., a cell addition procedure, a cell handover procedure) with a second cell (e.g., a high-bandwidth NR cell). In this example, the UE can compare a stored bandwidth associated with a channel of the second cell to a bandwidth threshold. If the stored bandwidth of the channel of the second cell is greater than or equal to the bandwidth threshold (and thus is associated with a high power consumption), the UE can refrain from completing the procedure with the respective channel of the secondary cell. For example, the UE can refrain from measuring a reference signal associated with the channel of the second cell and / or reporting measurements associated with the channel of the second cell in order to refrain from completing the procedure with the respective channel. Additionally, or alternatively, the UE can enter an idle state or transmit an indication of a radio link failure (RLF) in order to refrain from completing the procedure with the respective channel. By contrast, if the stored bandwidth of the channel of the second cell is less than the bandwidth threshold (and thus is associated with a lower power consumption), the UE can complete the procedure with the respective channel of the second cell.
[0098] The techniques described herein can provide improved power saving at a UE by enabling the UE to perform or refrain from performing a procedure (e.g., a cell addition procedure, a cell handover procedure) with individual channels of a second cell based on a respective bandwidth of the individual channels. By enabling the UE to perform (or refrain from performing) the procedure with the channels of the second cell on a channel-by-channel basis, the techniques described herein can support power saving techniques at the UE while at the same time allowing the UE to establish a wireless connection with channels associated with a lower power consumption.
[0099] Aspects of the disclosure are initially described in the context of a wireless communications system. Additional aspects of the disclosure are described in the context of example process flows. Aspects of the disclosure are further illustrated by and described in conjunction with apparatus diagrams, system diagrams, and flowcharts related to techniques for user equipment power saving.
[0100] Figure 1An example of a wireless communications system 100 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated. The wireless communications system 100 can include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 can be a Long Term Evolution (LTE) network, an LTE- Advanced (LTE-A) network, an LTE-A Pro network, or a NR network. In some examples, the wireless communications system 100 can support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.
[0101] The base stations 105 can be dispersed throughout the geographic area 100 and can be of different forms or have different capabilities. The base stations 105 and UEs 115 can wirelessly communicate via one or more communication links 125. Each base station 105 can provide a coverage area 110 over which UEs 115 and base stations 105 can establish one or more communication links 125. A coverage area 110 can be an example of a geographic area over which base stations 105 and UEs 115 can support signal communication in accordance with one or more radio access technologies.
[0102] The UEs 115 can be dispersed throughout the coverage areas 110 of the wireless communications system 100, and each UE 115 can be stationary or mobile, or both at different times. The UEs 115 can be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein can be able to communicate with various types of devices, such as other UEs 115, 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 FIG. 1. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein can be able to communicate as user equipment or a user device in other wireless communication systems, such as a machine-to-machine (M2M) or machine type communications (MTC) UE, a vehicle-to-everything (V2X) UE, or other UE. Figure 1 Some of the UEs 115 described herein can be capable of communicating using techniques described herein as a V2X UE, a UE 115 that is a vehicle-to-everything (V2X) UE, or a UE 115 that is a vehicle-to-vehicle (V2V) UE.
[0103] The base stations 105 can communicate with the core network 130, or with one another, or both. For example, base stations 105 can interface with the core network 130 through one or more backhaul links 120 (e.g., via an SI, N2, N3, or other interface). The base stations 105 can communicate with one another over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between base stations 105), or indirectly (e.g., via core network 130), or both. In some examples, the backhaul links 120 can be or include one or more wireless links.
[0104] One or more of the base stations 105 described herein can include or can be referred to as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB or giga-NodeB (either of which can be referred to as a gNB), a Home NodeB, a Home eNodeB, or other suitable terminology.
[0105] A UE 115 can include or can be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” can also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 can also include or can be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 can include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which can be implemented in various objects such as appliances or vehicles, among other examples.
[0106] The UEs 115 described herein can be able to communicate with various types of devices, such as other UEs 115 that can sometimes act as relays or Figure 1 network equipment including base stations 105 and customer premises equipment, as shown in FIG. 1.
[0107] The UEs 115 and the base stations 105 can wirelessly communicate with one another via one or more communication links 125 over one or more carriers. The term “carrier” can refer to a set of radio frequency spectrum resources with a defined physical layer structure configured to carry physical layer signaling, user data, or both. For example, a carrier used for a communication link 125 can include a portion of an RF spectrum band (e.g., a frequency
[0108] In some examples (e.g., in carrier aggregation configurations), a carrier can also have acquisition signaling or control signaling that coordinates operations of other carriers. A carrier can be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN)) and can be positioned based on a channel raster to facilitate discovery by UEs 115. Carriers can be operated in a standalone mode where initial acquisition and connection can be achieved via the carrier, or the carrier can be operated in a non-standalone mode where acquisition and connection can be achieved using a different carrier (e.g., a carrier of a different radio access technology).
[0109] The communication links 125 shown in wireless communication system 100 can include uplink transmissions from a UE 115 to a base station 105, or downlink transmissions from a base station 105 to a UE 115. Carriers can carry downlink or uplink communications (e.g., in an FDD mode), or can be configured to carry downlink and uplink communications (e.g., in a TDD mode).
[0110] A carrier can be associated with a particular bandwidth of radio frequency spectrum, and in some examples the carrier bandwidth can be referred to as a “system bandwidth” of the carrier or wireless communications system 100. For example, the carrier bandwidth can be one of a number of determined bandwidths for carriers of a particular radio access technology (e.g., 5, 10, 15, 20, 40, 50, 60, 80, or 100 megahertz (MHz)). Devices of wireless communications system 100 (e.g., base stations 105, UEs 115, or both) can have hardware configurations that support communications over the particular carrier bandwidth, or can be configurable to support communications over one of a set of carrier bandwidths. In some examples, wireless communications system 100 can include base stations 105 or UEs 115 that support simultaneous communications over multiple carrier bandwidths associated with multiple carriers. In some examples, each served UE 115 can be configured for operating over portions (e.g., sub-bands, BWPs) or all of the carrier bandwidth.
[0111] Signal waveforms transmitted over a carrier can be composed of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element can consist of one symbol period (e.g., a 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 can depend on the modulation scheme (e.g., the order of the modulation scheme, the code rate of the modulation scheme, or both). Thus, the more resource elements that a UE 115 receives and the higher the order of the modulation scheme, the higher the data rate can be for the UE 115. A wireless communications resource can refer to a combination of a radio frequency spectrum resource, a time resource, and a spatial resource (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate for communications with a UE 115.
[0112] One or more numerologies for a carrier can be supported, where a numerology can include a subcarrier spacing (Af) and a cyclic prefix. A carrier can be partitioned into one or more BWPs with the same or different numerologies. In some examples, a UE 115 can be configured with multiple BWPs. In some examples, a single BWP for a carrier can be active at a given time and communications for a UE 115 can be limited to one or more active BWPs.
[0113] Time intervals for a base station 105 or UE 115 can be expressed in multiples of a basic time unit, which may, for example, be a sampling period of Ts= 1 / (A s fmax max · N f seconds, where Af max may represent the maximum supported subcarrier spacing, and N f may represent the maximum supported discrete fourier transform (DFT) size. Time intervals of a communications resource can be organized as radio frames, each
[0114] Each frame can include a plurality of sequentially numbered subframes or slots, and each subframe or slot can have the same duration. In some examples, a frame can be divided (e.g., in the time domain) into subframes, and each subframe can be further divided into a number of slots. Alternatively, each frame can include a variable number of slots, and the number of slots can depend on the subcarrier spacing. Each slot can include a number of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period). In some wireless communication systems 100, a slot can be further divided into a plurality of mini-slots containing one or more symbols. Excluding the cyclic prefix, each symbol period can contain one or more (e.g., N f The duration of a symbol period can depend on the subcarrier spacing or the operating band.
[0115] A subframe, a slot, a mini-slot, or a symbol can be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and can be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communications system 100 can be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).
[0116] Physical channels can be multiplexed on a carrier according to various techniques. A physical control channel and a physical data channel can be multiplexed on a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for a physical control channel can be defined by a number of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) can be configured for a set of UEs 115. For example, one or more of the UEs 115 can monitor or search the control region for control information according to one or more search space sets, and each search space set can include one or more control channel candidates arranged in an aggregation level of one or more of the control channel candidates in a cascaded manner. An aggregation level for a control channel candidate can refer to a number of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. A search space set can include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets configured for sending control information to a specific UE 115.
[0117] Each base station 105 can provide communication coverage for a respective geographic area 110 via one or more cells, e.g., a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term "cell" can refer to a logical communication entity used for communication with a base station 105 (e.g., on a carrier) and can be associated with a identifier, such as a physical cell identifier (PCID), a virtual cell identifier (VCID), or otherwise, used to distinguish from other cells that a neighbor. In some examples, the cell can also refer to a geographical area 110 over which a logical communication entity operates or a portion of the geographical area 110 (e.g., a sector). Such a cell can range in size from a small area (e.g., a structure, a subset of a structure) to a large area depending on various factors such as the capacity of the base station 105. For example, a cell can be or include a building, a subset of a building, or an outdoor space between or overlapping with geographical areas 110, among other examples.
[0118] A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UEs 115 with service subscriptions with the network provider that supports the macro cell. A small cell can be associated with a lower- powered base station 105 (e.g., relative to a macro cell) and can operate in the same or different frequency band as a macro cell. A small cell can provide full service to, or restricted access by, UEs 115 with service subscriptions with the network provider, or can provide restricted access by UEs 115 that are associated with a closed subscriber group (CSG), UEs 115 that have access to a family or enterprise network, and the like. Base stations 105 can support one or multiple cells and can also support communication with UEs 115 using one or more component carriers.
[0119] In some examples, a carrier can support multiple cells, and different cells of the carrier can be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that can provide access to different types of devices.
[0120] In some examples, a base station 105 can be movable and therefore provide communication coverage for a moving geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, but the different geographic coverage areas 110 can be supported by the same base station 105. In other examples, the overlapping geographic coverage areas 110 associated with different technologies can be supported by different base stations 105. The wireless communications system 100 can include, for example, a heterogeneous network in which different types of the base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.
[0121] The wireless communications system 100 can support synchronous or asynchronous operation. For synchronous operation, the base stations 105 can have similar frame timings, and transmissions from different base stations 105 can be approximately aligned in time. For asynchronous operation, the base stations 105 can have different frame timings, and transmissions from different base stations 105 can not be aligned in time. The techniques described herein can be used for synchronous or asynchronous operation.
[0122] Some UEs 115, such as MTC or IoT devices, can be low cost or low complexity devices, and can provide for automated communication between machines or machines and humans (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with one another or a base station 105 without the need for human intervention. In some examples, M2M communication or MTC can include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that makes use of the information or presents the information to humans in interaction with the application program. Some UEs 115 can be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, wildlife monitoring, weather and geological event monitoring, fleet management, remote security sensing, physical access control, and transaction-based business charging.
[0123] Some UEs 115 can be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode where a UE 115 can support either transmission or reception, but not simultaneously with another UE 115) In some examples, a half-duplex communications mode can be used on a set of subframes arranged to support a reduced peak rate of a device, such as a machine type communication (MTC) device, or other similar devices. In some examples, other power conservation techniques for UEs 115 include entering a power saving deep sleep mode when not engaging in active communications, operating over a limited bandwidth (e.g., according to a narrowband protocol type), or a combination of these techniques. For example, some UEs 115 can be configured for operation using a narrowband protocol type, which is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs)) within a carrier, within a guardband of a carrier, or outside of a carrier.
[0124] The wireless communications system 100 can be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 can be configured to support ultra-reliable low-latency communications (URLLC) or mission critical communications. UEs 115 can be designed to support ultra-reliable, low-latency, or mission critical functions (e.g., mission critical function). Ultra-reliable communications can include private communication or group communication and can 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 functions can include prioritization of services, and mission critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission critical, and ultra-reliable low- latency can be used interchangeably herein.
[0125] In some examples, UEs 115 can also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communications can be within the geographic coverage area 110 of a base station 105. Other UEs 115 in such a group can be outside the geographic coverage area 110 of a base station 105, or be otherwise unable to receive transmissions from a base station 105. In some examples, groups of UEs 115 communicating via D2D communications can utilize a one-to-many (1 :M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, a base station 105 facilitates the scheduling of resources for D2D communications. In other cases, D2D communications are carried out between UEs 115 without the involvement of a base station 105.
[0126] 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 can be an evolved packet core (EPC) or 5G core (5GC), which can 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 interconnects to external networks, such as 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 stratum (NAS) functions, such as mobility, authentication, and bearer management for UEs 115 served by base stations 105 associated with the core network 130. User IP packets can be transferred through the user plane entity, which can provide IP address allocation as well as other functions. The user plane entity can be connected to the IP services 150 of the one or more network operators. The IP services 150 can include access to the Internet, Intranet(s), an IP Multimedia Subsystem (IMS), or a Packet-Switched Streaming Service.
[0127] Some of the network devices, such as a base station 105, can include subcomponents such as an access network entity 140, which can be an example of an access node controller (ANC). Each access network entity 140 can communicate with UEs 115 through one or more other access network transmission entities 145, which can be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transmission entity 145 can include one or more antenna panels. In some configurations, various functions of each access network entity 140 or base station 105 can be distributed across various network devices (e.g., radio heads and ANCs) or consolidated into a single network device (e.g., a base station 105).
[0128] The wireless communications system 100 can operate using one or more frequency bands, often in the range of 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, since the wavelengths range from approximately one decimeter to one meter in length. The UHF region includes bands such as the 700 MHz, 800 MHz, 900 MHz, 1.4 GHz, 1.9 GHz, and 2.1 GHz bands. The region from 3 GHz to 30 GHz is known as the super-high frequency (SHF) region or centimeter band, since the wavelengths range from approximately one centimeter to one meter in length. The SHF region includes bands such as the 5 GHz band. The region from 30 GHz to 300 GHz is known as the extremely high frequency (EHF) region or millimeter band, since the wavelengths range from approximately one millimeter to one centimeter in length. The EHF region includes bands such as the 38 GHz and 60 GHz bands. The wireless communications system 100 can support millimeter wave (mmW) communications or centimeter wave communications between UEs 115 and base stations 105, for example.
[0129] Wireless communications system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, wireless communications system 100 can employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed frequency band such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating in unlicensed frequency
[0130] Base stations 105 or UEs 115 can be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. Base stations 105 or UEs 115 can use their multiple antennas to improve the reliability and throughput of communications. For instance, base stations 105 or UEs 115 can use beamforming to focus energy in a communication signal towards a receiving device. For example, a base station 105 can use beamforming to project energy towards a UE 115 to which the base station 105 is communicating. Similarly, a UE 115 can use beamforming to project energy towards a base station 105 with which the UE 115 is communicating. Antennas of base stations 105 or UEs 115 can be co-located within one or more antenna arrays or antenna panels that can support MIMO operations or beamforming. For example, one or more base station antennas or antenna arrays can be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a base station 105 can be located at different geographic locations. A base station 105 can have an array of antennas that have a number of rows and columns of antenna ports that the base station 105 can use for beamforming in support of communications with UEs 115. Likewise, a UE 115 can have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, an antenna panel can support radio frequency beamforming for signals communicated via the antenna ports.
[0131] Base stations 105 or UEs 115 can use MIMO communications to take advantage of multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques can be referred to as spatial multiplexing. For example, a transmitting device can transmit multiple signals on the same frequency channel by using different antennas or different combinations of antennas. Similarly, a receiving device can receive multiple signals on the same frequency channel by decoding the signals with different antennas or different combinations of antennas. Each signal can be referred to as a spatial stream, and can carry bits associated with the same data stream (e.g., a same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.
[0132] Beamforming, which can also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer a beam of energy in a specific direction along with the spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining the signals communicated by antennas of an antenna array such that signals transmitted or received with certain orientations (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) experience constructive interference while others experience destructive interference. The combination of signals can be performed according to a beamforming weight set associated with a particular orientation. The beamforming weight set can include amplitude weights, phase weights, or both. The beamforming weight set can be defined such that signals transmitted or received with the beam oriented in a particular direction exhibit a desired signal characteristic such as a signal strength that is maximized (or maximally improved), a signal-to-noise ratio that is maximized (or maximally improved), a noise figure that is minimized (or minimized), or some other signal characteristic.
[0133] The base stations 105 or the UEs 115 can use beamforming techniques as part of an effort to reduce or minimize interference. For example, a transmitting device (e.g., a base station 105) can apply beamforming techniques to steer the energy of a transmission in a desired direction, thus possibly minimizing transmission of the energy in other directions. Similarly, a receiving device (e.g., a UE 115) can apply beamforming techniques to steer the energy of a received transmission in a desired direction, thus possibly minimizing transmission of the energy in other directions.
[0134] Some signals, such as data signals associated with a particular receiving device, can be transmitted by a base station 105 in a single beam direction (e.g., a direction associated with the receiving device, such as a UE 115). In some examples, the beam direction associated with transmissions along a single beam direction can be determined based on a signal that was transmitted in one or more beam directions. For example, a UE 115 can receive one or more of the signals transmitted by the base station 105 in different directions and can report to the base station 105 an indication of the signal that the UE 115 received with a highest signal quality, or an otherwise acceptable signal quality.
[0135] In some examples, transmissions by a device (e.g., by a base station 105 or a UE 115) can be performed using multiple beam directions, and the device can use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from a base station 105 to a UE 115). A UE 115 can report feedback that indicates precoding weights for one or more beam directions, and the feedback can correspond to a configured number of beams across a system bandwidth or one or more sub-bands. A base station 105 can transmit reference signals (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)) that can be precoded or unprecoded. A UE 115 can provide feedback for beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals transmitted in one or more directions by a base station 105, a UE 115 can employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal in a single direction (e.g., for transmitting data to a receiving device).
[0136] A receiving device (e.g., a UE 115) can try multiple receive configurations (e.g., directional listening) when receiving various signals from base stations 105, such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device can try multiple receive directions by differentially rotating a polarization plane of an antenna over time, measuring for signals received in different receive directions, or any combination thereof. In some examples, the receiving device can use a single receive configuration to receive signals along a single beam direction (e.g., when receiving a data signal). The single receive configuration can be aligned in a beam direction determined based on listening in different receive directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR), highest signal-to-interference-plus-noise ratio (SINR), or otherwise acceptable signal quality based on listening in multiple beam directions).
[0137] The wireless communications system 100 can be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or Packet Data Convergence Protocol (PDCP) layer can be IP -based. A Radio Link Control (RLC) layer can perform packet segmentation and reassembly to communicate over logical channels. A Medium Access Control (MAC) layer can perform priority handling and multiplexing of logical channels into transport channels. The MAC layer can also use error detection techniques, error correction techniques, or both, to support retransmissions by the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a base station 105 or core network 130 supporting radio bearers for user plane data. At the physical layer, transport channels can be mapped to physical channels.
[0138] The UEs 115 and the base stations 105 can support retransmissions of data to increase the likelihood that data is received successfully. HARQ feedback is one technique used to improve the likelihood that data is received successfully. HARQ can include a combination of error detection techniques, forward error correction techniques, and retransmission techniques. HARQ can improve throughput at the MAC layer in poor radio
[0139] In some aspects, the UEs 115 and the base stations 105 of the wireless communications system 100 can support techniques for improved power saving techniques at a UE 115. Specifically, the techniques described herein can enable a UE 115 of the wireless communications system 100 to perform procedures (e.g., cell addition procedures, cell handover procedures) associated with a second cell (e.g., a secondary cell, an NR cell, a 5G cell) of a lower frequency range (e.g., a smaller bandwidth) in order to prevent a substantial increase in power consumption at the UE 115. In this regard, the techniques described herein can provide improved power saving granularity by enabling a UE 115 to perform (or refrain from performing) procedures associated with particular channels of a second cell on a per-channel basis based on a bandwidth associated with each of the respective channels, as compared to some conventional power saving techniques that enforce a blanket prohibition on NR / 5G communications.
[0140] For example, a UE 115 of the wireless communications system 100, while communicating with a first cell (e.g., an LTE cell, a low-bandwidth NR cell), can identify a triggering condition for implementing a power saving technique. The triggering condition can include a low power state of the UE 115, a low throughput at the UE 115, a low mobility state at the UE 115, and / or the like. Subsequently, the UE 115 can receive an indication to perform a procedure (e.g., a cell addition procedure, a cell handover procedure) with a second cell of the wireless communications system 100. Each of the first and second cells can be supported by one or more base stations 105 of the wireless communications system 100 and can be associated with a common radio access technology, a different radio access technology, or both. In this example, the UE 115 can compare a bandwidth associated with a channel of the second cell to a bandwidth threshold. If the bandwidth of the channel of the second cell is greater than or equal to the bandwidth threshold (and thus associated with a high power consumption), the UE 115 can refrain from completing the procedure with the respective channel of the second cell. For example, the UE 115 can refrain from measuring reference signals associated with the channel of the second cell and / or reporting measurements associated with the channel of the second cell in order to refrain from completing the procedure with the respective channel. Additionally, or alternatively, the UE 115 can enter an idle state or transmit an indication of an RLF in order to refrain from completing the procedure with the respective channel. In contrast, if the bandwidth of the channel of the second cell is less than the bandwidth threshold (and thus associated with a lower power consumption), the UE 115 can complete the procedure with the respective channel of the second cell.
[0141] The techniques described herein can provide improved power saving at a UE 115 by enabling the UE 115 to perform or refrain from performing a procedure (e.g., a cell addition procedure, a cell handover procedure) with individual channels of a second cell based on a respective bandwidth of the individual channels. By enabling the UE 115 to perform (or refrain from performing) the procedure with the channels of the second cell on a channel-by-channel basis, the techniques described herein can support power saving techniques at the UE 115 while at the same time allowing the UE 115 to establish a wireless connection with channels of cells of the wireless communications system 100 that are associated with lower power consumption.
[0142] Figure 2 An example of a wireless communications system 200 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated. In some examples, wireless communications system 200 can implement aspects of wireless communications system 100. Wireless communications system 200 can include a UE 115, a first base station 105-a, and a second base station 105, which can be examples of a UE 115 and base stations 105 as described with reference to FIG. 1. Figure 1
[0143] Wireless communications system 200 can support wireless communications with wireless devices (e.g., UEs 115) via one or more cells 205 (e.g., a serving cell) of wireless communications system 200. Specifically, each cell 205 can be supported by one or more base stations 105 of wireless communications system 200. For example, as shown in Figure 2 wireless communications system 200 can include a first cell 205-a supported by a first base station 105-a and a second cell 205-b supported by a second base station 105-b. A cell 205 can include a primary cell (PCell), a secondary cell (SCell), a primary secondary cell (PSCell) of a secondary cell group (SCG), or any combination thereof. Wireless communications system 200 can include any number of cells 205 supported by any number of base stations 105. For example, in additional or alternative cases, both the first cell 205-a and the second cell 205-b can be supported by the first base station 105-a. In this regard, a single base station 105 can be configured to support multiple cells 205.
[0144] In some aspects, the first cell 205-a and the second cell 205-b can be associated with a common frequency band (e.g., intra-band carrier aggregation) or different frequency bands. Further, each cell 205 can include multiple channels, where each channel is associated with a different bandwidth, frequency range, or both. In some aspects, the first cell 205-a, the second cell 205-b, or both can include a PCell, an SCell, a PSCell of an SCG, or any combination thereof. For example, in cases where the first cell 205-a includes a PCell, the second cell 205-b can include an SCell.
[0145] In some cases, the techniques described herein can be implemented in the context of dual connectivity, standalone (SA) applications, non-standalone (NSA) applications, or any combination thereof. In some cases, the first cell 205-a, the second cell 205-b, or both can be associated with a given radio access technology, such as a 5G radio access technology, an NR access technology, a 4G radio access technology, an LTE radio access technology, or any combination thereof. In this regard, the second cell 205-b can be associated with the same or a different radio access technology as the radio access technology associated with the first cell 205-a. In this regard, the power saving techniques described herein can be implemented in the context of procedures associated with E-UTRA-NR dual connectivity (ENDC) procedures, NR-dual connectivity (NRDC), or both.
[0146] For example, in the case where the first cell 205-a is associated with a 4G or LTE radio access technology, the second cell 205-b can be associated with a 5G radio access technology, an NR access technology, or both. Further, in some cases, the first cell 205-a and the second cell 205-b can be associated with a common or different frequency band associated with a common radio access technology. For example, in some cases, both the first and second cells 205-a and 205-b can be associated with an NR access technology, where the first cell 205-a is associated with a FR1 frequency band of the NR access technology and the second cell 205-b is associated with a FR2 frequency band of the NR access technology.
[0147] In some aspects, the UE 115-a can communicate with the cells 205 (e.g., with the base stations 105 supporting the cells 205) using one or more channels, beams, carriers (e.g., component carriers), communication links, or any combination thereof. For example, each cell 205 can be associated with one or more channels that facilitate wireless communication between the UE 115-a and the respective cell 205. For purposes of simplicity, each cell 205 is shown as being associated with a communication link 210, where each communication link can include one or more channels that support wireless communication between a wireless device (e.g., a UE 115) and a respective base station 105. For example, the UE 115-a can communicate with the first cell 205-a via a first communication link 210-a (e.g., with a first base station 105-a supporting the first cell 205-a). Similarly, the UE 115-a can communicate with the second cell 205-b via a second communication link 210-b (e.g., with a second base station 105-b supporting the second cell 205-b). In some aspects, the first communication link 210-a and the second communication link 210-b can include examples of access links (e.g., Uu links) that facilitate wireless communication between the UE 115 and the respective cells 205. The first communication link 210-a and the second communication link 210-b can include bidirectional links that can include uplink and downlink communications. For example, the UE 115 can transmit uplink transmissions (such as uplink control signals or uplink data signals) to the first cell 205-a (e.g., to the first base station 105-a supporting the first cell 205-a) using the first communication link 210-a, and the first cell 205-a (e.g., the first base station 105-a supporting the first cell 205-a) can transmit downlink transmissions, such as downlink control signals or downlink data signals, to the UE 115 using the first communication link 210-a.
[0148] Some portions of the disclosure are presented in terms of a UE (e.g., UE 115) communicating with one or more cells (e.g., first cell 205-a, second cell 205-b). A wireless communication between a UE and a cell can be understood to include communication between the UE and a base station, a transmission reception point (TRP), or other wireless communication device supporting the respective cell. For example, as used herein, it can be said that a UE 115 is in communication with a first cell 205-a by the UE 115 transmitting uplink transmissions and / or receiving downlink transmissions from the first base station 105-a via a first communication link 210-a. Similarly, it can be said that a UE 115 is in communication with a second cell 205-b by the UE 115 transmitting uplink transmissions and / or receiving downlink transmissions from the second base station 105-b via a second communication link 210-b. Figure 1 The UE 115 illustrated in FIG. 1 is in communication with the first cell 205-a by the UE 115 transmitting uplink transmissions and / or receiving downlink transmissions from the first base station 105-a via a first communication link 210-a. Similarly, the UE 115 illustrated in FIG. 1 is in communication with the second cell 205-b by the UE 115 transmitting uplink transmissions and / or receiving downlink transmissions from the second base station 105-b via a second communication link 210-b. Figure 1 The UE 115 illustrated in FIG. 1 is in communication with the first cell 205-a by the UE 115 transmitting uplink transmissions and / or receiving downlink transmissions from the first base station 105-a via a first communication link 210-a. Similarly, the UE 115 illustrated in FIG. 1 is in communication with the second cell 205-b by the UE 115 transmitting uplink transmissions and / or receiving downlink transmissions from the second base station 105-b via a second communication link 210-b.
[0149] In some aspects, the UE 115, the first base station 105-a, and the second base station 105-b of the wireless communication system 200 can support techniques for improved power saving techniques at the UE 115. Specifically, the techniques described herein can enable the UE 115 of the wireless communication system 200 to perform procedures on a per-channel basis with channels of the second cell 205-a while communicatively coupled to the first cell 205-a. Specifically, the techniques described herein can enable the UE 115 to perform (or refrain from performing) procedures with the second cell 205-b on a per-channel basis in order to prevent the UE 115 from establishing a wireless connection with a channel of the second cell 205-b that is associated with a large bandwidth and, thus, a large power consumption. Thus, the techniques described herein can enable the UE 115 to perform (or refrain from performing) procedures with channels of the second cell 205-b to prevent a large increase in power consumption and preserve power of the UE 115. In this regard, the techniques described herein can provide improved power saving granularity by enabling the UE 115 to perform (or refrain from performing) procedures with particular channels of the second cell 205-b on a per-channel basis based on a bandwidth associated with each of the respective channels as compared to some conventional power saving techniques that enforce a blanket prohibition on NR / 5G communications.
[0150] For example, while communicating with the first cell 205-a, the UE 115 can identify a trigger condition for implementing a power saving technique. The trigger condition can include a low power state of the UE 115, a low throughput at the UE 115, a low mobility state at the UE 115, and / or the like. Subsequently, the first cell 205-a (e.g., a first base station 105-a supporting the first cell 205-a) can transmit an indication to the UE 115 to perform a procedure (e.g., a cell addition procedure, a cell handover procedure) with a second cell 205-b of the wireless communications system 200. In some cases, the first cell 205-a can include an LTE cell or a 4G cell, and the second cell 205-b can include an NR cell or a 5G cell. Additionally, or alternatively, the first cell 205-a and the second cell 205-b can both be associated with a common radio access technology, different radio access technologies, or both.
[0151] Continuing the same example, upon receiving the indication to perform the procedure with the second cell 205-b and identifying that the trigger condition has been satisfied, the UE 115 can compare a bandwidth associated with a channel of the second cell 205-a to one or more bandwidth thresholds. If the bandwidth of the channel of the second cell 205-b is greater than or equal to the bandwidth threshold (and thus associated with a high power consumption), the UE 115 can refrain from completing the procedure with the respective channel of the second cell 205-b. For example, the UE 115 can refrain from measuring reference signals associated with the channel of the second cell 205-b and / or reporting measurements associated with the channel of the second cell 205-b in order to refrain from completing the procedure with the respective channel of the second cell 205-b. Additionally, or alternatively, the UE 115 can enter an idle state or transmit an indication of an RLF in order to refrain from completing the procedure with the respective channel of the second cell 205-b. In contrast, if the bandwidth of the channel of the second cell 205-b is less than the bandwidth threshold (and thus associated with a lower power consumption), the UE 115 can complete the procedure with the respective channel of the second cell 205-b.
[0152] In some cases, the UE 115 can be configured to selectively adjust an associated parameter of a procedure with the second cell 205-b in order to increase or decrease a probability that the UE 115 can complete the procedure with a selected channel of the second cell 205-b. In particular, the UE 115 can selectively adjust the associated parameter of the procedure with the second cell 205-b on a per-channel basis based on a bandwidth of each respective channel. For example, while communicatively coupled to the first cell 205-a, the UE 115 can identify that a triggering condition for implementing a power saving technique has been satisfied. In this example, the UE 115 can also identify that a channel supported by the second cell 205-b is greater than a bandwidth threshold, and thus is associated with a relatively high power consumption. To reduce a probability that the UE 115 will perform the procedure with the channel of the second cell 205-b (e.g., a cell reselection procedure, a cell handover procedure), the UE 115 can selectively adjust one or more parameters associated with the procedure of the channel of the second cell 205-b. For example, the UE 115 can adjust a cell reselection priority metric, a reference signal received power (RSRP) threshold, a reference signal received quality (RSRQ) threshold, or any combination thereof. In this regard, by selectively adjusting the associated parameter of the procedure associated with the channel of the second cell 205-b, the UE 115 can reduce a probability that the UE 115 will establish a wireless connection with the channel of the second cell 205-b (which would result in a substantial increase in power consumption at the UE 115), thereby enabling the UE 115 to maintain a relatively lower power consumption and conserve battery power.
[0153] The techniques described herein can provide improved power saving at the UE 115 by enabling the UE 115 to perform or refrain from performing a procedure (e.g., a cell addition procedure, a cell handover procedure) with individual channels of the second cell 205-b based on respective bandwidths of the individual channels of the second cell 205-b. By enabling the UE 115 to perform (or refrain from performing) the procedure with the channels of the second cell 205-b on a per-channel basis, the techniques described herein can support power saving techniques at the UE 115 while at the same time allowing the UE 115 to establish a wireless connection with a channel of a cell 205 of the wireless communications system 200 that is associated with a lower power consumption.
[0154] Particular examples of the present disclosure and attendant advantages can be further appreciated in view of Figures 3-7 shown and described.
[0155] Figure 3Examples of process flow 300 supporting techniques for power saving in user equipment according to various aspects of this disclosure are described. In some examples, process flow 300 may implement aspects of wireless communication system 100, wireless communication system 200, or both, or be implemented by them. For example, process flow 300 may describe UE 315 determining that a trigger condition associated with an operating state has been met, comparing the bandwidth associated with a second cell with a threshold bandwidth, and performing one or more actions associated with the second cell based on the comparison, as referred to Figures 1-2 As described, and other aspects.
[0156] Process flow 300 may include UE 315, first cell 305-a and second cell 305-b, each of which may be a reference. Figure 1 and 2 Examples of UE 115 and cell 205 described herein. Each of the first cell 305-a and the second cell 305-b may be supported by one or more base stations. In some aspects, the first cell 305-c and the second cell 305-b may be connected to a single base station of a wireless communication system (e.g., Figure 2 The first cell 305-a and the second cell 305-b may be associated with (e.g., supported by) the base station 105-a described herein. Alternatively or alternatively, the first cell 305-a and the second cell 305-b may be associated with (e.g., supported by) different base stations 105. Additionally, the first cell 305-a and the second cell 305-b may be associated with shared radio access technologies or different radio access technologies. For example, in some cases, the first cell 305-a may be associated with LTE or 4G radio access technology, and the second cell 305-b may be associated with NR or 5G radio access technology. In additional or alternative cases, both the first cell 305-a and the second cell 305-b may be associated with NR or 5G radio access technology.
[0157] In some examples, the operations described in process flow 300 may be performed by hardware (e.g., including circuit systems, processing blocks, logic components, and other components), code executed by a processor (e.g., software or firmware), or any combination thereof. Alternative examples are possible, in which some steps are performed in a different order than described or not at all. In some cases, the steps may include additional features not mentioned below, or further steps may be added.
[0158] At 320, the UE 315 can receive, from the first cell 305-a, a downlink transmission from the first cell. In some aspects, the downlink transmission can include a radio resource control (RRC) message, a downlink control information (DCI) message, a MAC-CE message, a system information block (SIB) message, a synchronization signal block (SSB) message, or any combination thereof.
[0159] In some aspects, the downlink transmission can include information for performing one or more actions associated with the second cell 305-b. For example, the downlink transmission can include information for performing a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof. For example, as shown, the downlink transmission can include a Figure 3 RRCConnectionReconfiguration message that indicates the UE is to perform one or more measurements (e.g., FR1 measurements, FR2 measurements) on reference signals received from the second cell 305-b. In this regard, Figure 3 The downlink transmission illustrated in FIG. 3B can include information for performing ENDC measurements on reference signals transmitted by the second cell 305-b (e.g., information for an ENDC addition procedure).
[0160] In some aspects, the downlink transmission can additionally include an identifier associated with the second cell 305-b. The identifier associated with the second cell 305-b can include, but is not limited to, a cell global identifier (CGI), an absolute radio frequency channel number (ARFCN), and / or the like.
[0161] At 325, the UE 315 can identify that a trigger condition associated with an operating parameter at the UE is satisfied. In this regard, the UE 315 can identify that a trigger condition associated with an operating power state at the UE 315 has been satisfied, which can indicate that the UE 315 implements the power saving techniques described herein. In some aspects, the UE 315 can identify that the trigger condition has been satisfied based on receiving the downlink transmission at 320 (e.g., based on receiving information associated with a procedure with the second cell 305-b).
[0162] The operational parameters associated with the trigger conditions for the power saving techniques can include, but are not limited to, a power level of the UE 315 (e.g., battery power level), an operational state of the UE 315 (e.g., idle mode of operation, connected mode of operation), a presence / absence of an external power source (e.g., battery pack, A / C power source) coupled to the UE 315, a mobility state of the UE 315. Additionally, or alternatively, the operational parameters associated with the trigger conditions for the power saving techniques can include parameters associated with wireless communications at the UE 315, including, but not limited to, a throughput of the wireless communications at the UE 315, an energy efficiency of the wireless communications at the UE 315, an RSRP metric of the wireless communications at the UE 315, or any combination thereof.
[0163] The UE 315 can be configured to determine that a trigger condition for a power saving technique has been satisfied by comparing one or more operational parameters of the UE 315 to one or more threshold values. For example, the UE 315 can identify that a trigger condition has been satisfied based on a determination that a power level of the UE 315 satisfies a threshold power level. For example, the UE 315 can identify that a trigger condition has been satisfied based on a determination that a power level P UE (e.g., battery power level) of the UE 315 is less than or equal to a threshold power level P Thresh (e.g., if P UE ≤ P Thresh , then the trigger condition is satisfied). As another example, the UE 315 can identify that a trigger condition has been satisfied based on a determination that a throughput TP UE of the wireless communications at the UE 315 satisfies a threshold throughput TP Thresh (e.g., if TP UE ≤ TP Thresh , then the trigger condition is satisfied). As another example, the UE 315 can identify that a trigger condition has been satisfied based on a determination that an RSRP metric RSRP UE of the wireless communications at the UE 315 satisfies a threshold RSRP metric RSRP Thresh (e.g., if RSRP UE ≤ RSRP Thresh , then the trigger condition is satisfied). As another example, the UE 315 can identify that a trigger condition has been satisfied based on a determination that an energy efficiency EE UE (e.g., measured in joules per data bit) of the wireless communications at the UE 315 satisfies a threshold energy efficiency EE Thresh (e.g., if EE UE ≤ EE Thresh , then the trigger condition is satisfied).
[0164] In some implementations, the UE 315 can be configured to identify that a trigger condition for a power saving technique is satisfied based on a mobility state of the UE 315. The mobility state of the UE 315 can be associated with a speed at which the UE 315 is moving, an acceleration of the UE 315, a movement pattern of the UE 315, or any combination thereof. For example, a higher speed can be associated with a higher mobility state, while a lower speed can be associated with a lower mobility state. In some cases, the techniques described herein can implement power saving measures by preventing the UE 315 from performing procedures (e.g., establishing a wireless connection with) associated with channels and / or cells of large power consumption (e.g., large bandwidth). Accordingly, some of the techniques described herein can limit the number of channels and / or cells with which the UE 315 can communicate in order to save power. In this regard, the techniques described herein that limit the number of channels / cells with which the UE 315 can perform procedures (e.g., a cell handover procedure, a cell reselection procedure) can conflict with a need for the UE 315 to perform a cell handover procedure or other procedure due to movement of the UE 315.
[0165] For example, a UE 315 on a high-speed train can be moving at a high rate (e.g., a high mobility state), and can quickly move across geographic areas of cells. In this regard, the UE 315 can need to perform frequent cell handover procedures (or other procedures) in order to establish a connection with the cells (e.g., base stations) as the UE 315 moves through respective geographic areas of the cells. In such cases, implementing some of the power saving techniques described herein can limit the number of cells with which the UE 315 can perform procedures, which can inhibit the ability of the UE 315 to maintain a wireless connection with the network. In such cases, the UE 315 can refrain from implementing the power saving techniques described herein in order to preserve the number of cells with which the UE 315 can communicate while the UE 315 is traveling within the high-speed train. Accordingly, in some cases, the UE 315 can identify that a trigger condition has been satisfied based on determining that a mobility state MS UE (e.g., a speed) of the UE 315 satisfies a mobility state threshold MS Thresh (e.g., if MS UE ≤ MS Thresh , then the trigger condition is satisfied). For example, if a speed of the UE 315 is less than a threshold speed, the UE 315 can be configured to determine that the trigger condition is satisfied, and thus can implement the power saving techniques.
[0166] In some aspects, the UE 315 can be configured to identify that the trigger condition has been satisfied based on a plurality of operating parameters (e.g., based on the plurality of operating parameters satisfying respective threshold values). For example, the UE 315 can be configured to identify that the trigger condition has been satisfied based on identifying that the UE 315 is in an idle or connected mode of operation, identifying that a power level P UE (e.g., battery level) of the UE 315 is less than or equal to a threshold power level P Thresh ( e.g., P UE ≤ P Thresh ), identifying that the UE 315 is not coupled to an external power source, identifying that a throughput TP UE of wireless communications at the UE 315 satisfies a threshold throughput TP Thresh ( e.g., TP UE ≤ TP Thresh ), or any combination thereof.
[0167] At 330, the UE 315 can transmit an uplink transmission to the first cell 305-a. In some aspects, the uplink transmission can include an uplink control information (UCI) message, a MAC-CE message, and / or the like. In some aspects, the UE 315 can transmit the uplink transmission at 330 based on receiving the downlink transmission at 320, identifying that the trigger condition has been satisfied at 325, or both.
[0168] In some aspects, the uplink transmission can indicate that the trigger condition associated with one or more operating parameters of the UE 315 has been satisfied. In this regard, the uplink transmission can include an indication that the trigger condition for implementing a power saving measure has been reached. In some cases, the uplink transmission can include a request for information from the first cell 305-a regarding additional information for performing a procedure indicated by the downlink transmission received at 320. In particular, the uplink transmission can include a request for information regarding how the UE 315 should perform (or refrain from performing) a procedure associated with the second cell 305-b in a manner that facilitates reducing power consumption at the UE 315 and / or preserving a power level (e.g., battery level) of the UE 315.
[0169] At 335, the UE 315 can receive a second downlink transmission from the first cell 305-a. In some aspects, the UE 315 can receive the second downlink transmission based on (e.g., in response to) transmitting the uplink transmission at 330. Additionally, or alternatively, the first cell 305-a can transmit the second downlink transmission based on transmitting the downlink transmission at 320.
[0170] In some aspects, the second downlink transmission can include information for performing at least one action associated with a procedure. Specifically, the second downlink transmission can include information associated with performing one or more actions to cause the UE 315 to complete (or refrain from completing) a procedure associated with the second cell 305-b in order to reduce power consumption at the UE 315 and / or conserve power at the UE 315. In other words, the second downlink transmission can include information associated with implementing a power saving technique at the UE 315.
[0171] At 340, the UE 315 can determine one or more bandwidths associated with the second cell 305-b. Specifically, the UE 315 can determine one or more bandwidths associated with one or more channels supported by the second cell 305-b. In some aspects, the UE 315-b can determine the one or more bandwidths associated with the second cell at 340 based on receiving the downlink transmission at 320, identifying that the trigger condition has been satisfied at 325, transmitting the uplink transmission at 330, receiving the second downlink transmission at 335, or any combination thereof. For example, the UE 315 can be configured to determine one or more bandwidths of the second cell 305-b based on an indication of an ARFCN associated with the second cell 305-b included within the downlink transmission received at 320.
[0172] In cases where the second cell 305-a supports communications in FR1 and / or FR2, the second cell 305-b can support one or more channels. In such cases, the UE 315 can be configured to determine a bandwidth associated with each channel supported by the second cell 305-b. For example, in cases where the second cell 305-b supports a first channel and a second channel, the UE 315 can determine a first bandwidth associated with the first channel and a second bandwidth associated with the second channel. In some aspects, the one or more determined bandwidths can include a maximum downlink channel bandwidth for each channel (e.g., each frequency range) of the second cell 305-b. Further, the one or more bandwidths determined at 340 can include a maximum downlink channel bandwidth (e.g., a maximum downlink channel bandwidth configured in locationAndBandwidth) currently configured for each BWP of the second cell 305-b for an ENDC procedure associated with the second cell 305-b.
[0173] The UE 315 can implement any number of techniques for determining one or more bandwidths associated with the second cell 305-b. For example, in some implementations, the UE 315 can determine one or more bandwidths associated with the second cell 305-b based on a prior wireless connection between the UE 315 and the second cell 305-b. For example, the UE 315 can have established a prior wireless connection with the second cell 305-b and can have stored (e.g., in a memory of the UE 315) a determined channel bandwidth supported by the second cell 305-b based on the prior wireless connection. Such techniques for determining a bandwidth of the second cell 305-b based on a previously established connection can be generally referred to as "bandwidth fingerprinting." In some cases, the UE 315 can be configured to generate a database (e.g., a fingerprint database) of bandwidths associated with channels of cells with which the UE 315 has communicated.
[0174] Additionally or alternatively, the UE 315 can determine one or more bandwidths associated with the second cell 305-b by querying one or more servers, cells (e.g., the first cell 305-a, the second cell 305-b), UEs (e.g., other UEs), or any combination thereof. For example, the UE 315 can determine one or more bandwidths associated with the second cell 305-b by querying a database (e.g., a fingerprint database) of bandwidths previously determined and compiled by UEs that have previously established wireless connections with the second cell 305-b. Such techniques for the UE 315 to transmit a query for determined bandwidths associated with the second cell 305-b can be generally referred to as "bandwidth crowd sourcing."
[0175] For example, other UEs that have previously established connections with the second cell 305-b can determine bandwidths associated with channels supported by the second cell 305-b. These bandwidths determined by the other UEs can be stored in a database that is accessible via a network (e.g., via the first cell 305-a and / or the second cell 305-b). In this example, the UE 315 can transmit a request for information associated with one or more bandwidths of the second cell 305-b and can receive an indication of one or more bandwidths of the second cell 305-b based on (e.g., in response to) transmitting the request. For example, the UE 315 can transmit a request to the first cell 305-a, where the first cell 305-a can have access to a database (e.g., a fingerprint database) of determined bandwidths associated with the second cell 305-b and transmit a response including one or more determined bandwidths associated with the second cell 305-b.
[0176] In some aspects, the UE 315 can use a combination of bandwidth fingerprinting techniques and bandwidth crowd-sourcing techniques in order to determine one or more bandwidths associated with the second cell 305-b at 340. Additionally or alternatively, the UE 315 can determine a bandwidth based on explicit signaling from the first cell 305-a. For example, the downlink transmission received at 320, the second downlink transmission received at 335, or both can include an indication of one or more bandwidths associated with the second cell 305-b. For example, the downlink transmission received at 320 can include an indication for the UE 315 to perform an ENDC addition procedure for a given channel of the second cell 305-b, and can include an indication of a bandwidth associated with the given cell.
[0177] At 345, the UE 315 can compare the one or more determined bandwidths associated with the second cell 305-b to one or more threshold bandwidths. In some aspects, the UE 315 can perform the comparison at 345 based on receiving the downlink transmission at 320, identifying that the trigger condition has been satisfied at 325, transmitting the uplink transmission at 330, receiving the second downlink transmission at 335, determining the one or more bandwidths at 340, or any combination thereof. For example, in a case where the UE 315 determines three bandwidths (e.g., a first bandwidth, a second bandwidth, a third bandwidth) associated with three channels supported by the second cell 305-b, the UE 315 can compare each of the first bandwidth, the second bandwidth, and the third bandwidth to one or more threshold bandwidths.
[0178] At 350, the UE 315 can determine whether the one or more determined bandwidths satisfy the one or more threshold bandwidths. In this regard, the UE 315 can determine whether the one or more threshold bandwidths are satisfied based on the comparison at 345. In some aspects, a determined bandwidth (BW) can be determined to satisfy a threshold bandwidth (e.g., if BW ≥ BW Thresh ), if the determined bandwidth (BW) is greater than or equal to the threshold bandwidth (BW Thresh ).
[0179] In a case where the UE 315 determines that a bandwidth associated with a channel of the second cell 305-b fails to satisfy one or more threshold bandwidths (e.g., Step 350 = No), the process flow 300 can proceed to 375 for that channel. Conversely, in a case where the UE 315 determines that a bandwidth associated with a channel of the second cell 305-b satisfies one or more threshold bandwidths (e.g., Step 350 = Yes), the process flow 300 can proceed to 355 for that channel. In this regard, the steps 355-375 of the process flow 300 can be completed for each channel supported by the second cell 305-b.
[0180] For example, in a case where the UE 315 determines that a first bandwidth (BW1) associated with a first channel supported by the second cell 305-b satisfies a threshold bandwidth (BW Thresh ) (e.g., BW1 < BW Thresh ), the process flow 300 can proceed to 375 for the first channel. In some cases, by proceeding to 375, the UE 315 can be configured to complete a procedure associated with the first channel of the second cell 305-b based on the first bandwidth associated with the first channel failing to satisfy the threshold bandwidth. Conversely, as another example, in a case where the UE 315 determines that a second bandwidth (BW2) associated with a second channel supported by the second cell 305-b satisfies a threshold bandwidth (BW Thresh ) (e.g., BW2 > BW Thresh ), the process flow 300 can proceed to 355 for the second channel. In some cases, by proceeding to 355, the UE 315 can be configured to refrain from completing a procedure associated with the second channel of the second cell 305-b based on the second bandwidth associated with the second channel satisfying the threshold bandwidth.
[0181] The one or more threshold bandwidths can be configured at the UE 315, indicated to the UE 315 via signaling from the first cell 305-a (e.g., via the downlink transmission of 320 and / or the second downlink transmission of 355), or both. In some cases, the threshold bandwidth can comprise 50 MHz. In some aspects, the threshold bandwidth can be selectively modified based on one or more characteristics or parameters, including but not limited to a desired power saving metric (power consumption metric), energy efficiency of each respective channel, signal quality / strength (e.g., RSRP, RSRQ) of each respective channel, or any combination thereof. For example, the UE 315 can modify the threshold bandwidth based on a desired level of power saving or power conservation (e.g., power saving metric, power conservation metric).
[0182] For example, in a case where the UE 315 is to implement a significant power saving or power conservation measure (e.g., a high power saving / conservation metric), the UE 315 can lower the bandwidth threshold to ensure that the UE 315 can complete a procedure for a channel of the second cell 305-b associated with a lower bandwidth, and thus a lower level of power consumption. Conversely, in a case where the UE 315 determines to implement a lower power saving / conservation metric, the UE 315 can increase the threshold bandwidth to enable the UE 315 to complete a procedure for a channel of the second cell 305-b associated with a larger bandwidth, and thus a higher level of power consumption.
[0183] As another example, the UE 315 can adjust the threshold bandwidth for individual channels based on the energy efficiency, RSRP, and / or RSRQ of each respective channel. For example, the UE 315 can increase the threshold bandwidth for a channel with high energy efficiency (e.g., high RSRP) because the increased power consumption realized by the increased threshold bandwidth can be at least partially offset by the high energy efficiency of the channel.
[0184] At 355, the UE 315 can receive one or more reference signals from the second cell 305-b. In some aspects, the UE 315 can receive the one or more reference signals from the second cell 305-b based on determining at 350 that the one or more bandwidths associated with the one or more channels of the second cell 305-b satisfy the threshold bandwidth.
[0185] In some aspects, the one or more reference signals received at 355 can be associated with the one or more channels supported by the second cell 305-b. For example, in a case where the second cell 305-b includes a first channel, a second channel, and a third channel, the UE 315 can receive a first reference signal associated with the first channel, a second reference signal associated with the second channel, and a third reference signal associated with the third channel.
[0186] At 360, the UE 315 can refrain from performing measurements for at least one reference signal. In some cases, the UE 315 can refrain from performing measurements for received reference signals associated with bandwidths that satisfy the threshold bandwidth at 350. In this regard, the UE 315 can refrain from performing measurements for channels of the second cell 305-b that include a bandwidth greater than or equal to the threshold bandwidth and are therefore associated with a higher level of power consumption at the UE 315.
[0187] For example, in a case where the second cell 305-b includes a first channel, a second channel, and a third channel, the UE 315 can receive a first reference signal associated with the first channel, a second reference signal associated with the second channel, and a third reference signal associated with the third channel. In this example, a second bandwidth associated with the second channel can satisfy the threshold bandwidth (e.g., BW2≥ BW Thresh ), while a first bandwidth and a third bandwidth associated with the first and third channels, respectively, can not satisfy the threshold bandwidth (e.g., BW1<BW Thresh , BW3<BW Thresh ). In this example, the UE 315 can refrain from performing measurements for the second reference signal based on the second bandwidth satisfying the threshold bandwidth.
[0188] In some cases, by refraining from performing measurements for channels of the second cell 305-b that are associated with large bandwidths (and thus, with larger power consumption levels), the UE 315 can subsequently be unable to report the measurements, and can thus be unable to complete procedures with respect to the respective channels. Accordingly, by refraining from performing measurements for channels of the second cell 305-b that satisfy the threshold bandwidth, the techniques described herein can cause the UE 315 to avoid establishing wireless communications with channels of the second cell 305-b that can result in higher power consumption levels at the UE 315.
[0189] Additionally, or alternatively, the UE 315 can perform measurements for channels of the second cell 305-b that satisfy the threshold bandwidth, but can refrain from transmitting an indication of the measurements. This can be further understood with reference to 365.
[0190] At 365, the UE 315 can perform a set of measurements on the one or more reference signals received at 355. The measurements performed at 365 can include any measurements known in the art, including but not limited to a received signal strength indicator (RSSI) measurement, an RSRP measurement, an RSRQ measurement, an SNR measurement, an SINR measurement, or any combination thereof.
[0191] In cases where the UE 315 refrains from performing measurements for channels of the second cell 305-b that satisfy the threshold bandwidth at 360, the UE 315 can perform the set of measurements at 365 only for reference signals associated with channels that fail to satisfy the threshold bandwidth. Conversely, in other cases, the UE 315 can perform measurements for each reference signal associated with each channel of the second cell 305-b, regardless of whether the respective cell is associated with a bandwidth that satisfies the threshold bandwidth.
[0192] At 370, the UE 315 can transmit a measurement report to the first cell 305-a. The UE 315 can refrain from transmitting the measurement report based on receiving the reference signals at 355, refraining from performing measurements for one or more channels at 360, performing measurements at 365, or any combination thereof.
[0193] In some cases, the UE 315 can omit measurements associated with one or more channels from the measurement report. In particular, the UE 315 can omit measurements associated with a channel of the second cell 305-a that includes a bandwidth that satisfies the threshold bandwidth. For example, the UE 315 can receive reference signals associated with a first channel, a second channel, and a third channel supported by the second cell 305-b. In this example, the UE 315 can determine that a second bandwidth associated with the second channel satisfies the threshold bandwidth, and thus can refrain from performing measurements for the reference signals of the second channel at 360. In this regard, the measurement report can omit measurements associated with the second channel based on the second bandwidth of the second channel satisfying the threshold bandwidth.
[0194] As another example, the UE 315 can receive reference signals associated with a first channel, a second channel, and a third channel supported by the second cell 305-b. In this example, the UE 315 can determine that a second bandwidth associated with the second channel satisfies the threshold bandwidth, but can perform measurements for the reference signals associated with all three channels at 365. However, at 370, the UE 315 can omit measurements associated with the second channel from the measurement report based on the second bandwidth of the second channel satisfying the threshold bandwidth.
[0195] Accordingly, the UE 315 can omit measurements associated with channels that include a bandwidth that is greater than or equal to the threshold bandwidth from the measurement report. Thus, for channels that include a bandwidth that satisfies the threshold bandwidth, the UE 315 can refrain from transmitting a measurement report triggered by a Bl event. For example, if the UE 315 determines that a signal quality or strength of a channel of the second cell 305-b satisfies a respective quality threshold and / or strength threshold (e.g., the Bl event is satisfied), the UE 315 can still refrain from transmitting a measurement report for the channel of the second cell 305-b based on the respective channel satisfying the threshold bandwidth.
[0196] In some aspects, the UE 315 can be configured to perform the actions described at 355-365 in cases in which the UE 315 supports NSA mode of operation. Reference will be made to Figure 5 The procedures for completing (or refraining from completing) the procedures for UEs that do not support NSA mode of operation (e.g., UEs that only support SA mode of operation) are described in more detail.
[0197] At 375, the UE 315 can complete a procedure with the second cell 305-b. In some aspects, the UE 315 can complete a procedure (e.g., an ENDC addition procedure, a cell handover procedure, a cell addition procedure, a cell reselection procedure) associated with the selected channel supported by the second cell 305-b. In particular, the UE 315 can complete the procedure associated with the selected channel supported by the second cell 305-b based on the bandwidth of the selected channel failing to satisfy the threshold bandwidth at 350, based on receiving the reference signal for the selected channel at 355, based on performing the measurement for the selected channel at 365, based on refraining from transmitting the measurement report including the measurement for the selected channel at 370, or any combination thereof.
[0198] By completing (or refraining from completing) the procedure with the channel of the second cell 305-b based on the bandwidth of the respective channel, the techniques described herein can ensure that the UE 315 completes the procedure with the channel of the second cell 305-b that is associated with a relatively small bandwidth, and thus a relatively small level of power consumption.
[0199] The techniques described herein can provide improved power saving at the UE 315 by enabling the UE 115 to perform or refrain from performing a procedure with individual channels of the second cell 305-b based on the respective bandwidths of the individual channels of the second cell 305-b (e.g., a cell addition procedure, a cell handover procedure). By enabling the UE 315 to perform (or refrain from performing) the procedure with the channels of the second cell 305-b on a channel-by-channel basis, the techniques described herein can support power saving techniques at the UE 315 while at the same time allowing the UE 315 to establish a wireless connection with a channel of a cell 305 (e.g., the second cell 305-b) that is associated with a lower level of power consumption.
[0200] Figure 4 An example of a process flow 400 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated. In some examples, process flow 400 can implement or be implemented by aspects of wireless communication system 100, wireless communication system 200, or both. For example, process flow 400 can illustrate a UE 415 determining that a trigger condition associated with an operating state has been satisfied, comparing a bandwidth associated with a second cell to a threshold bandwidth, and performing one or more actions associated with the second cell based on the comparison, as described with reference to Figures 1-2 and other aspects.
[0201] Process flow 400 can include a UE 415, a first cell 405-a, and a second cell 405-b, which can each be a base station, a UE, or components thereof, as described with reference to Figure 1 and 2The described examples of UEs 115 and cells 205. Each of the first cell 405-a and the second cell 405-b can be supported by one or more base stations. In some aspects, the first cell 405-a and the second cell 405-b can be associated with (e.g., supported by) a single base station of the wireless communications system (e.g., the base station 105-a) illustrated in FIG. 3. Additionally, or alternatively, the first cell 405-a and the second cell 405-b can be associated with (e.g., supported by) different base stations 105. Additionally, the first cell 305-a and the second cell 405-b can be associated with a common radio access technology, different radio access technologies. For example, in some cases, the first cell 305-a can be associated with an LTE or 4G radio access technology, and the second cell 405-b can be associated with an NR or 5G radio access technology. In additional or alternative cases, the first cell 305-a and the second cell 405-b can both be associated with an NR or 5G radio access technology. Figure 2
[0202] In some examples, the operations illustrated in process flow 400 can be performed by hardware (e.g., including circuitry, processing blocks, logic components, and other components), code (e.g., software or firmware) executed by a processor, or any combination thereof. Alternative examples can be implemented in which some steps are performed in a different order than described or not performed at all. In some cases, steps can include additional features not mentioned, or further steps can be added.
[0203] At 420, the UE 415 can receive, from the first cell 405, a downlink transmission from the first cell. In some aspects, the downlink transmission can include an RRC message, a DCI message, a MAC-CE message, a SIB message, a SSB message, or any combination thereof. In some aspects, the downlink transmission can include information for performing one or more actions associated with the second cell 405-b. For example, the downlink transmission can include information for performing a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof. For example, as shown, the downlink transmission can include an RRCConnectionReconfiguration message that indicates the UE to perform a cell reconfiguration procedure (e.g., an ENDC addition procedure, an SCG addition procedure) with the second cell 405-b. Figure 4
[0204] In some aspects, the downlink transmission can additionally include an identifier associated with the second cell 405-b. The identifier associated with the second cell 405-b can include, but is not limited to, a CGI, an ARFCN, and the like.
[0205] At 425, the UE 415 can identify that a trigger condition associated with an operating parameter at the UE has been satisfied. In this regard, the UE 415 can identify that a trigger condition associated with an operating power state at the UE 415 has been satisfied, which can indicate that the UE 415 implements the power saving techniques described herein. In some aspects, the UE 415 can identify that the trigger condition has been satisfied based on receiving the downlink transmission at 420 (e.g., based on receiving information associated with a procedure with the second cell 405-b).
[0206] It is noted herein that any discussion regarding the identification of the trigger condition at step 325 of the process flow 300 illustrated in Figure 3 may be considered to apply, mutatis mutandis, to step 425 illustrated in Figure 4 For example, as described previously herein, the operating parameter associated with the trigger condition for the power saving techniques can include, but is not limited to, a power level of the UE 415 (e.g., battery level), an operating state of the UE 415 (e.g., idle mode of operation, connected mode of operation), a presence / absence of an external power source (e.g., battery pack, A / C power source) coupled to the UE 415, a mobility state of the UE 415, a throughput of a wireless communication at the UE 415, an energy efficiency of a wireless communication at the UE 415, an RSRP metric of a wireless communication at the UE 415, or any combination thereof.
[0207] At 430, the UE 415 can transmit an uplink transmission to the first cell 405-a. In some aspects, the uplink transmission can include a UCI message, a MAC-CE message, and / or the like. In some aspects, the UE 415 can transmit the uplink transmission at 430 based on receiving the downlink transmission at 420, identifying that the trigger condition has been satisfied at 425, or both. In some aspects, the uplink transmission can indicate that the trigger condition associated with one or more operating parameters of the UE 415 has been satisfied. In this regard, the uplink transmission can include an indication that the trigger condition for implementing a power saving measure has been reached. In some cases, the uplink transmission can include a request for information from the first cell 405-a regarding additional information for performing the procedure indicated by the downlink transmission received at 420. In particular, the uplink transmission can include a request for information regarding how the UE 415 should perform (or refrain from performing) the procedure associated with the second cell 405-b in a manner that facilitates reducing power consumption at the UE 415 and / or preserving a power level (e.g., battery level) of the UE 415.
[0208] At 435, the UE 415 can receive a second downlink transmission from the first cell 405-a. In some aspects, the UE 415 can receive the second downlink transmission based on (e.g., in response to) transmitting the uplink transmission at 430. Additionally, or alternatively, the first cell 405-a can transmit the second downlink transmission based on transmitting the downlink transmission at 420.
[0209] In some aspects, the second downlink transmission can include information for performing at least one action associated with a procedure. In particular, the second downlink transmission can include information associated with performing one or more actions to cause the UE 415 to complete (or refrain from completing) a procedure associated with the second cell 405-b in order to reduce power consumption at the UE 415 and / or conserve power at the UE 415. In other words, the second downlink transmission can include information associated with implementing a power saving technique at the UE 415.
[0210] At 440, the UE 415 can determine one or more bandwidths associated with the second cell 405-b. In particular, the UE 415 can determine one or more bandwidths associated with one or more channels supported by the second cell 405-b. In some aspects, the UE 415-b can determine the one or more bandwidths associated with the second cell at 440 based on receiving the downlink transmission at 420, identifying that the trigger condition has been satisfied at 425, transmitting the uplink transmission at 430, receiving the second downlink transmission at 435, or any combination thereof. For example, the UE 415 can be configured to determine one or more bandwidths of the second cell 405-b based on an indication of a CGI associated with the second cell 405-b included in the downlink transmission received at 420.
[0211] In some aspects, the UE 415 can determine a bandwidth associated with each channel supported by the second cell 405-b. Further, it is noted herein that any discussion of determining one or more bandwidths at step 340 of the process flow 300 illustrated in Figure 3 may be considered to apply, mutatis mutandis, to step 440 illustrated in Figure 4 For example, as described herein with reference to Figure 3 the UE 415 can determine the one or more bandwidths at 440 using a bandwidth fingerprinting technique, a bandwidth crowd-sourcing technique, based on explicit signaling from the first cell 405-a, or any combination thereof.
[0212] At 445, the UE 415 can compare the one or more determined bandwidths associated with the second cell 405-b to one or more threshold bandwidths. In some aspects, the UE 415 can perform the comparison at 445 based on receiving the downlink transmission at 420, identifying that the trigger condition has been met at 425, transmitting the uplink transmission at 430, receiving the second downlink transmission at 435, determining the one or more bandwidths at 440, or any combination thereof. For example, in a case where the UE 415 determines three bandwidths (e.g., a first bandwidth, a second bandwidth, a third bandwidth) associated with the three channels supported by the second cell 405-b, the UE 415 can compare each of the first bandwidth, the second bandwidth, and the third bandwidth to the one or more threshold bandwidths. It is noted herein that any discussion regarding the comparison of the bandwidth to the bandwidth threshold at step 345 of the process flow 300 illustrated in Figure 3 may be considered to apply, mutatis mutandis, to step 445 illustrated in Figure 4 .
[0213] At 450, the UE 415 can determine whether the one or more determined bandwidths satisfy the one or more threshold bandwidths. In this regard, the UE 415 can determine whether the one or more threshold bandwidths are satisfied based on the comparison at 445. In some aspects, if the determined bandwidth (BW) is greater than or equal to the threshold bandwidth (BW Thresh ), then the determined bandwidth can be determined to satisfy the threshold bandwidth (e.g., if BW ≥ BW Thresh , then it is satisfied).
[0214] In a case where the UE 415 determines that the bandwidth associated with a channel of the second cell 405-b fails to satisfy the one or more threshold bandwidths (e.g., step 450 = NO), the process flow 300 can proceed to 375 for that channel. Conversely, in a case where the UE 415 determines that the bandwidth associated with a channel of the second cell 405-b satisfies the one or more threshold bandwidths (e.g., step 450 = YES), the process flow 300 can proceed to 455 for that channel. In this regard, steps 455-460 of the process flow 300 can be completed for each channel supported by the second cell 405-b. It is noted herein that any discussion regarding the comparison of the bandwidth to the bandwidth threshold at step 350 of the process flow 300 illustrated in Figure 3 may be considered to apply, mutatis mutandis, to step 450 illustrated in Figure 4 .
[0215] At 455, the UE 415 can transmit an uplink transmission to the first cell 405-a associated with the RLF at the UE 415. In this regard, the uplink transmission can include an indication of the RLF. In some aspects, the UE 415 can transmit the uplink transmission at 455 based on the bandwidth associated with the one or more channels of the second cell 405-b satisfying the threshold bandwidth.
[0216] For example, in cases where the downlink transmission received at 420 includes an indication of an ENDC addition procedure and / or an SCG addition procedure, the UE 415 can transmit an uplink transmission including an indication of the RLF to fail the ENDC addition procedure and / or the SCG addition procedure by the RLF (e.g., via LTE or SCG RLF). In some aspects, the uplink transmission can additionally include an indication of the one or more channels of the second cell 405-b associated with the RLF. For example, in cases where a first bandwidth of a first channel supported by the second cell satisfies the threshold bandwidth and a second bandwidth of a second channel supported by the second cell fails to satisfy the threshold bandwidth, the uplink transmission can indicate that the RLF is associated with the first channel. Accordingly, the UE 415 can be configured to fail a procedure (e.g., an ENDC addition procedure, an SCG addition procedure) on a channel-by-channel basis by transmitting an uplink transmission including an indication of the RLF (e.g., via LTE or SCG RLF).
[0217] At 460, the UE 415 can complete the procedure (e.g., ENDC addition procedure, SCG addition procedure) with the second cell 405-b. In some aspects, the UE 415 can complete the procedure (e.g., ENDC addition procedure, cell handover procedure, cell addition procedure, cell reselection procedure) associated with a selected channel supported by the second cell 405-b. In particular, the UE 415 can complete the procedure associated with the selected channel supported by the second cell 405-b based on the bandwidth of the selected channel failing to satisfy the threshold bandwidth at 450, based on receiving a reference signal of the selected channel at 455, based on transmitting the uplink transmission at 455, or any combination thereof.
[0218] By completing (or refraining from completing) the procedure with the channels of the second cell 405-b based on the bandwidth of the respective channels, the techniques described herein can ensure that the UE 415 completes the procedure with the channels of the second cell 405-b that are associated with a relatively small bandwidth, and thus a relatively small level of power consumption.
[0219] The techniques described herein provide improved power savings at UE 415 by enabling UE 115 to perform or suppress the execution of procedures (e.g., cell addition procedures, cell handover procedures) with the individual channels of the second cell 405-b based on the corresponding bandwidth of the individual channels of the second cell 405-b. By enabling UE 415 to perform (or suppress) procedures with the channels of the second cell 405-b on a per-channel basis, the techniques described herein support power-saving techniques at UE 415 while allowing UE 415 to establish radio connections with channels associated with lower-power cells 405 (e.g., the second cell 405-b).
[0220] Figure 5 Examples of process flow 500 supporting techniques for power saving in user equipment according to various aspects of this disclosure are described. In some examples, process flow 500 may implement aspects of wireless communication system 100, wireless communication system 200, or both, or be implemented therein. For example, process flow 500 may describe UE 515 determining that a trigger condition associated with an operating state has been met, comparing the bandwidth associated with a second cell with a threshold bandwidth, and performing one or more actions associated with the second cell based on that comparison, as referred to Figures 1-2 As described, and other aspects.
[0221] Process flow 500 may include UE 315, first cell 505-a and second cell 505-b, each of which may be a reference. Figure 1 and 2 Examples of the described UE 115 and cell 205. Each of the first cell 505-a and the second cell 505-b may be supported by one or more base stations. In some aspects, the first cell 505-c and the second cell 505-b may be connected to a single base station of a wireless communication system (e.g., Figure 2 The first cell 505-a and the second cell 505-b may be associated with (e.g., supported by) the base station 105-a described herein. Alternatively or alternatively, the first cell 505-a and the second cell 505-b may be associated with (e.g., supported by) different base stations 105. Additionally, the first cell 505-a and the second cell 505-b may be associated with shared radio access technologies or different radio access technologies. For example, in some cases, the first cell 505-a may be associated with LTE or 4G radio access technology, and the second cell 505-b may be associated with NR or 5G radio access technology. In additional or alternative cases, both the first cell 505-a and the second cell 505-b may be associated with NR or 5G radio access technology.
[0222] In some examples, the operations illustrated in process flow 500 can be performed by hardware (e.g., including circuitry, processing blocks, logic components, and other components), code (e.g., software or firmware) executed by a processor, or any combination thereof. Alternative examples of the following can be implemented, where some steps are performed in a different order than described or are not performed at all. In some cases, steps can include additional features not mentioned, or further steps can be added.
[0223] At 520, UE 515 can receive, from the first cell 505, a downlink transmission from the first cell. In some aspects, the downlink transmission can include an RRC message, a DCI message, a MAC-CE message, a SIB message, a SSB message, or any combination thereof. In some aspects, the downlink transmission can include information for performing one or more actions associated with the second cell 505-b. For example, the downlink transmission can include information for performing a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof. For example, as shown, the downlink transmission can include an RRCConnectionReconfiguration message that indicates the UE to perform one or more measurements (e.g., FR1 measurements, FR2 measurements) on reference signals received from the second cell 505-b. Figure 3
[0224] As mentioned previously herein, Figure 3 Process flow 300 illustrated in FIG. 3 illustrates UE 315 completing (or refraining from completing) a procedure (e.g., an ENDC addition procedure) in the context of UE 315 operating in an NSA mode of operation. In contrast, Figure 5 Process flow 500 illustrated in FIG. 5 illustrates UE 515 completing (or refraining from completing) a cell handover procedure (e.g., a packet switched handover (PSHO) procedure) in the context of UE 515 operating in an SA mode of operation. For example, the downlink transmission received at 520 can include information for performing a cell handover procedure (e.g., a PSHO procedure) from the first cell 505-a to the second cell 505-b. For example, the downlink transmission received at 520 can include information for performing a cell handover procedure (e.g., a PSHO procedure) from a first cell 505-a associated with a LTE radio access technology to a second cell 505-b associated with a NR radio access technology.
[0225] Accordingly, it is noted herein that any discussion of steps 325-375 of process flow 300 illustrated in FIG. 3 can be considered applicable to steps 525-575 of process flow 500 illustrated in FIG. 5. Figure 3 Accordingly, it is noted herein that any discussion of steps 325-375 of process flow 300 illustrated in FIG. 3 can be considered applicable to steps 525-575 of process flow 500 illustrated in FIG. 5. Figure 5 Steps 525-575 of process flow 500 are illustrated and described in the preceding sections. For example, UE 515 can determine that a trigger condition is satisfied at 525, transmit an uplink transmission indicating the trigger condition at 530, receive a second downlink transmission based on the uplink transmission at 535, determine one or more bandwidths of one or more channels of second cell 505-b at 540-550 and compare the determined bandwidths to one or more threshold bandwidths at 540-550, receive a reference signal at 555, refrain from performing measurements of the reference signal at 560, perform measurements of the reference signal at 565, refrain from transmitting a measurement report at 570, and complete a procedure with a channel of second cell 505-b at 575.
[0226] In some aspects, in addition to refraining at 570, UE 515 can refrain from transmitting a measurement report triggered by a B2 event for a channel that includes a bandwidth that satisfies a threshold bandwidth. For example, if UE 515 determines that a signal quality or strength of a channel of first cell 505-a satisfies a first threshold (e.g., RSRP1≤ RSRP Thresh , RSRQ1≤ RSRQ Thresh ) and a signal quality or strength of a channel of second cell 505-b satisfies a second threshold (e.g., RSRP2≥ RSRP Thresh , RSRQ2≤ RSRQ Thresh ) (e.g., a B2 event is satisfied), UE 515 can still refrain from transmitting a measurement report for a channel of second cell 505-b based on the respective channel satisfying a threshold bandwidth.
[0227] Additionally, in some cases, UE 515 can selectively adjust a threshold bandwidth based on identifying a change in a mobility state at UE 515. For example, UE 515 can initially determine that it is in a low mobility state (e.g., low speed, low level of movement) and can therefore implement the power saving techniques described in process flow 500 to prevent UE 515 from completing (or refraining from completing) a procedure with a channel of second cell 505-b that is associated with a large bandwidth and therefore a high level of power consumption. In this example, UE 515 can subsequently determine that UE 515 is in a high mobility state (e.g., on a high speed train). In this regard, UE 515 can prioritize the ability to communicatively couple to a cell (e.g., second cell 505-b) in order to maintain a wireless connection to a network while in a high mobility state. Accordingly, UE 515 can selectively adjust (e.g., selectively increase) a threshold bandwidth in order to enable UE 515 to complete a procedure with a larger number of channels of second cell 505-b.
[0228] By completing (or refraining from completing) the procedure with the channel of the second cell 505-b based on the bandwidth of the respective channel, the techniques described herein can ensure that the UE 515 completes the procedure with the channel of the second cell 505-b that is associated with a relatively small bandwidth, and thus a relatively small power consumption level. Moreover, by completing (or refraining from completing) the procedure with the channel of the second cell 505-b based on the bandwidth of the respective channel, the techniques described herein can enable the UE 515 to complete the procedure with the channel of the second cell 505-b that is associated with a relatively small bandwidth, and thus a relatively small power consumption level, while at the same time allowing the UE 515 to establish a wireless connection with the channel of the second cell 505-b that is associated with a lower power consumption. Figure 3 In contrast to the process flow 300 illustrated in FIG. 6, which can complete (or not complete) the procedure on a per-channel basis in the context of an NSA mode of operation, Figure 5 The process flow 500 illustrated in FIG. 6 can complete (or not complete) the procedure on a per-channel basis in the context of an SA mode of operation. In particular, the process flow 500 can enable a UE 515 operating in an SA mode of operation to complete (or refrain from completing) the procedure (e.g., a cell handover procedure, a PSHO procedure) with the second cell 505-b on a per-channel basis, depending on the bandwidth (and thus the power consumption level) of each respective channel of the second cell 505-b.
[0229] The techniques described herein can provide improved power saving at the UE 515 by enabling the UE 115 to perform or refrain from performing the procedure with individual channels of the second cell 505-b based on the respective bandwidth of the individual channels of the second cell 505-b. By enabling the UE 515 to perform (or refrain from performing) the procedure with the channels of the second cell 505-b on a per-channel basis, the techniques described herein can support power saving techniques at the UE 515, while at the same time allowing the UE 515 to establish a wireless connection with the channels of the second cell 505-b that are associated with a lower power consumption.
[0230] Figure 6 An example of a process flow 600 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated. In some examples, the process flow 600 can implement or be implemented by aspects of the wireless communication system 100, the wireless communication system 200, or both. For example, the process flow 600 can illustrate a UE 615 determining that a trigger condition associated with an operating state has been satisfied, comparing a bandwidth associated with a second cell to a threshold bandwidth, and performing one or more actions associated with the second cell based on the comparison, as described with reference to Figures 1-2 and other aspects.
[0231] The process flow 600 can include a UE 615, a first cell 605-a, and a second cell 605-b, which can each be a UE 115, a base station 105, or a cell of a base station 105, as described with reference to Figure 1 and 2The described examples of UEs 115 and cells 205. Each of the first cell 605-a and the second cell 605-b can be supported by one or more base stations. In some aspects, the first cell 605-a and the second cell 605-b can be associated with (e.g., supported by) a single base station of the wireless communications system (e.g., the base station 105-a) illustrated in FIG. 6. Additionally, or alternatively, the first cell 605-a and the second cell 605-b can be associated with (e.g., supported by) different base stations 105. Additionally, the first cell 605-a and the second cell 605-b can be associated with a common radio access technology, different radio access technologies. For example, in some cases, the first cell 605-a can be associated with an LTE or 4G radio access technology, and the second cell 605-b can be associated with an NR or 5G radio access technology. In additional or alternative cases, both the first cell 605-a and the second cell 605-b can be associated with an NR or 5G radio access technology. Figure 2
[0232] In some examples, the operations illustrated in process flow 600 can be performed by hardware (e.g., including circuitry, processing blocks, logic components, and other components), code (e.g., software or firmware) executed by a processor, or any combination thereof. Alternative examples of the following can be implemented, where some steps are performed in a different order than described or are not performed at all. In some cases, individual steps can include additional features not mentioned, or further steps can be added.
[0233] At 620, the UE 615 can receive, from the first cell 605, a downlink transmission from the first cell. In some aspects, the downlink transmission can include an RRC message, a DCI message, a MAC-CE message, a SIB message, a SSB message, or any combination thereof. In some aspects, the downlink transmission can include information for performing one or more actions associated with the second cell 605-b. For example, as shown in Figure 6 In some aspects, the downlink transmission can include an RRCConnectionRelease message including information for performing a cell reselection procedure from the first cell 605-a to the second cell 605-b (e.g., an indication of redirectedCarrierlnfo-nr). In some aspects, the downlink transmission can include an RRCConnectionReconfiguration message including information for performing a cell reselection procedure from the first cell 605-a to the second cell 605-b (e.g., an indication of redirectedCarrierlnfo-nr).
[0234] At 625, the UE 615 can receive, from the first cell 605-a, a downlink transmission from the first cell (e.g., the UE 615 can receive the downlink transmission at 625 as an alternative to receiving the RRCConnectionRelease message at 620). In some aspects, the downlink transmission can include an RRC message, a DCI message, a MAC-CE message, a SIB message, a SSB message, or any combination thereof. In some aspects, the downlink transmission can include information for performing one or more actions associated with the second cell 605-b. For example, as shown in Figure 6 the downlink transmission can include an RRCReconfiguration message that includes information for performing a cell handover procedure (e.g., a PS HO procedure) from the first cell 605-a to the second cell 605-b (e.g., an indication of a MobilityFromEUTRACmmand).
[0235] As mentioned previously herein, Figure 4 the procedure flow 400, illustrated in Figure 6 the procedure flow 600, illustrated in
[0236] Accordingly, it is noted herein that any discussion of steps 425-450 of the procedure flow 400, illustrated in Figure 4 steps 630-655 of the procedure flow 600, illustrated in Figure 6 For example, the UE 615 can determine, at 630, that a trigger condition is satisfied, transmit, at 635, an uplink transmission indicating the trigger condition, receive, at 640, a second downlink transmission based on the uplink transmission, and determine, at 645-655, one or more bandwidths of one or more channels of the second cell 605-b and compare the determined bandwidths to one or more threshold bandwidths.
[0237] At 660, the UE 615 can transmit an uplink transmission to the first cell 605-a associated with the RLF at the UE 615. In this regard, the uplink transmission can include an indication of the RLF at the UE 615. In some aspects, the UE 615 can transmit the uplink transmission at 660 based on the bandwidths associated with the one or more channels of the second cell 405-b satisfying the threshold bandwidth. Additionally, or alternatively, the UE 615 can transmit the uplink transmission indicating the RLF in order to fail a cell handover procedure indicated via the downlink transmission received at 625. In this regard, the UE 615 can transmit the uplink transmission in order to refrain from completing a cell handover procedure with a channel of the second cell 605-b associated with a large bandwidth, and thus, a large power consumption.
[0238] For example, in cases where the downlink transmission received at 625 includes an indication of a cell handover procedure, the UE 615 can transmit an uplink transmission including an indication of the RLF in order to fail the cell handover procedure. In some aspects, the uplink transmission can additionally include an indication of one or more channels of the second cell 605-b associated with the RLF. For example, in cases where a first bandwidth of a first channel supported by the second cell satisfies the threshold bandwidth, and a second bandwidth of a second channel supported by the second cell fails to satisfy the threshold bandwidth, the uplink transmission can indicate that the RLF is associated with the first channel. Accordingly, the UE 615 can be configured to fail a procedure (e.g., a cell handover procedure) on a channel-by-channel basis by transmitting an uplink transmission including an indication of the RLF (e.g., an LTE RLF).
[0239] At 665, the UE 615 can enter an idle mode of operation. In some cases, the UE 615 can enter the idle mode of operation to release a wireless connection with the first cell 605-a. In some aspects, the UE 615 can enter the idle mode of operation in order to fail (e.g., refrain from completing) a procedure or action with a channel indicated by the first cell 605-a based on a bandwidth of the respective channel satisfying a threshold bandwidth. For example, in cases where the first cell 605-a indicates, via the downlink transmission received at 620, that the UE 615 is to perform a cell release procedure with a cell redirection, the UE 615 can enter the idle mode of operation based on one or more bandwidths of the second cell satisfying the threshold bandwidth. In particular, the UE 615 can enter the idle mode of operation in order to refrain from completing a cell redirection procedure with a channel of the second cell 605-a that satisfies the threshold bandwidth.
[0240] At 670, the UE 615 can complete a procedure with the second cell 605-b (e.g., a release procedure with a cell redirection, a cell handover procedure). In some aspects, the UE 615 can complete the procedure associated with the selected channel supported by the second cell 605-b. In particular, the UE 615 can complete the procedure associated with the selected channel supported by the second cell 605-b based on the bandwidth of the selected channel failing to satisfy the threshold bandwidth at 655, based on transmitting the uplink transmission at 660, based on entering the idle mode of operation at 665, or any combination thereof.
[0241] By completing (or refraining from completing) a procedure with a channel of the second cell 605-b based on a bandwidth of the respective channel, the techniques described herein can ensure that the UE 615 completes a procedure with a channel of the second cell 605-b that is associated with a relatively small bandwidth, and thus a relatively small level of power consumption. In particular, transmitting the uplink transmission indicating the RLF at 660 and / or entering the idle mode of operation at 665 can enable the UE 615 to refrain from completing an action / procedure with a channel of the second cell 605-b that is associated with a high level of power consumption. Accordingly, by refraining from completing an action / procedure on a channel-by-channel basis, the techniques described herein can ensure that the UE 615 can establish a wireless communication with a channel of the second cell 605-b that is associated with a low bandwidth, and thus a low level of power consumption.
[0242] The techniques described herein can provide improved power saving at the UE 615 by enabling the UE 115 to perform or refrain from performing an action or procedure with individual channels of the second cell 605-b based on a respective bandwidth of the individual channels of the second cell 605-b. By enabling the UE 615 to perform (or refrain from performing) an action or procedure with a channel of the second cell 605-b on a channel-by-channel basis, the techniques described herein can support power saving techniques at the UE 615 while at the same time allowing the UE 615 to establish a wireless connection with a channel of a cell 605 that is associated with a lower level of power consumption (e.g., the second cell 605-b).
[0243] Figure 7 An example of a process flow 700 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is illustrated. In some examples, process flow 700 can implement or be implemented by aspects of wireless communication system 100, wireless communication system 200, or both. For example, process flow 300 can illustrate a UE 715 determining that a trigger condition associated with an operating state has been satisfied, comparing a bandwidth associated with a second cell to a threshold bandwidth, and performing one or more actions associated with the second cell based on the comparison, as described with reference to Figures 1-2Aspects described, and other aspects.
[0244] Process flow 700 can include UE 715, first cell 705-a, and second cell 705-b, each of which can be a reference Figure 1 and 2 described with respect to UE 115 and cell 205. Each of first cell 705-a and second cell 705-b can be supported by one or more base stations. In some aspects, first cell 705-c and second cell 705-b can be associated with (e.g., supported by) a single base station of a wireless communications system (e.g., Figure 2 illustrated in FIG. 1). Additionally or alternatively, first cell 705-a and second cell 705-b can be associated with (e.g., supported by) different base stations 105. Additionally, first cell 705-a and second cell 705-b can be associated with a common radio access technology, different radio access technologies. For example, in some cases, first cell 705-a can be associated with LTE or 4G radio access technology, and second cell 705-b can be associated with NR or 5G radio access technology. In additional or alternative cases, both first cell 705-a and second cell 705-b can be associated with NR or 5G radio access technology.
[0245] In some examples, the operations illustrated in process flow 700 can be performed by hardware (e.g., including circuitry, processing blocks, logic components, and other components), code (e.g., software or firmware) executed by a processor, or any combination thereof. Alternative examples of the following can be implemented, where some steps are performed in a different order than described or are not performed at all. In some cases, steps can include additional features not mentioned, or further steps can be added.
[0246] At 720, UE 715 can determine that a trigger condition associated with one or more operational parameters at the UE is satisfied. It is noted herein that Figures 1-6 Any discussion in this regard with respect to identification of trigger conditions in process flow 700 can be considered applicable to step 720 of process flow 700. In this regard, UE 715 can identify a trigger condition based on operational parameters including, but not limited to, a power level (e.g., battery level), an operational state of UE 315 (e.g., idle mode of operation, connected mode of operation), a presence / absence of an external power source (e.g., battery pack, A / C power source), a mobility state of UE 315, a throughput, an energy efficiency, an RSRP metric, or any combination thereof.
[0247] In some aspects, Figure 7The process flow 700 illustrated in the middle can enable the UE 715 to selectively adjust parameters to perform actions associated with a LTE-to-NR (L2N) selection procedure (e.g., a L2N reselection procedure), a NR-to-NR (N2N) selection procedure (e.g., a NR reselection procedure), or both. In particular, the process flow 700 can enable the UE 715 to selectively adjust parameters for performing actions associated with the L2N and / or N2N procedures on a per-channel basis based on a bandwidth of each respective channel. In this regard, while communicatively coupled to the first cell 705-a or the second cell 705-b, the UE 715 can identify 720 that a trigger condition is satisfied.
[0248] For example, in a case where the UE 715 is coupled to the first cell 705-a, the UE 715 can perform various steps of the process flow 700 to adjust parameters for performing actions associated with the L2N procedure between the first cell 705-a (e.g., a LTE cell) and the second cell 705-b (e.g., a NR cell). As another example, in a case where the UE 715 is coupled to the second cell 705-b, the UE 715 can perform various steps of the process flow 700 to adjust parameters for performing actions associated with the N2N procedure between the second cell 705-b (e.g., a NR cell) and another NR cell (not shown). In particular, the process flow 700 can enable the UE 715 to adjust parameters associated with the L2N and / or N2N procedures for individual channels of a respective cell (e.g., the second cell 705-b, an additional NR cell) to make it more or less likely for the UE 715 to complete actions for the L2N and / or N2N procedure with a particular channel of the respective cell. In some aspects, the UE 715 can be configured to perform various steps or actions of the process flow 700 while operating in a SA mode of operation.
[0249] At 725, the UE 715 can transmit an uplink transmission to the first cell 705-a, the second cell 705-b, or both. For example, in a case where the UE 715 is in wireless communication with the first cell 705-a, the UE 715 can transmit an uplink transmission to the first cell 705-a. As another example, in a case where the UE 715 is in wireless communication with the second cell 705-b, the UE 715 can transmit an uplink transmission to the second cell 705-b. As mentioned previously herein, the UE 715 can transmit the uplink transmission to the first cell 705-a or the second cell 705-b based on identifying the trigger condition at 720. In this regard, Figures 1-6 Any discussion in the middle regarding identification of a trigger condition can be considered to apply to step 725 of the process flow 700 to the extent applicable.
[0250] At 730, the UE 715 can receive a downlink transmission from the first cell 705-a, the second cell 705-b, or both. In some aspects, the UE 715 can receive the downlink transmission based on (e.g., in response to) transmitting the uplink transmission. In this regard, the UE 715 can receive the downlink transmission from the same cell that received the uplink transmission at 715. In some aspects, the downlink transmission can include information for performing one or more actions at the UE 715 associated with a procedure (e.g., an L2N procedure, an N2N procedure). In particular, the downlink transmission can include information that can enable the UE 715 to perform (or refrain from performing) an action of the procedure in a manner that reduces power consumption and conserves power at the UE 715. In this regard, any discussion regarding receiving a second downlink transmission at step 335 of process flow 300, step 435 of process flow 400, step 535 of process flow 500, and / or step 640 of process flow 600 can be considered to apply to step 730 of process flow 700 to the extent applicable.
[0251] Further, Figures 1-6 Any discussion regarding determination of a bandwidth of a channel by the UE 715 and comparison of the determined bandwidth to a threshold bandwidth can be considered to apply to steps 735-745 of process flow 700. For example, as described previously herein, the UE 715 can determine one or more bandwidths associated with one or more channels of a cell (e.g., the first cell 705-a, the second cell 705-b, an additional NR cell) at 735, and compare the one or more determined bandwidths to one or more bandwidth thresholds at 740 and 745.
[0252] In some aspects, at 735, the UE 715 can determine one or more bandwidths associated with a channel of a cell associated with an L2N and / or N2N procedure. For example, when communicating with the first cell 705-a (e.g., an LTE cell), the UE 715 can determine one or more bandwidths associated with the second cell 705-b in order to determine whether a parameter for an L2N procedure between the first cell 705-a and the second cell 705-b can be adjusted to implement a power saving technique. As another example, when communicating with the second cell 705-b (e.g., an NR cell), the UE 715 can determine one or more bandwidths associated with an additional NR cell (not shown) in order to determine whether a parameter for an N2N procedure between the second cell 705-b and the additional NR cell can be adjusted to implement a power saving technique.
[0253] At 745, in a case that the bandwidth associated with the channel of the selected cell (e.g., the second cell 705-b, the additional NR cell) fails to satisfy the threshold bandwidth, the process flow 700 can proceed to 770, where the UE 715 can complete at least one action associated with a procedure (e.g., an L2N procedure, an N2N procedure) for the determined channel. In contrast, at 745, in a case that the bandwidth associated with the channel of the selected cell (e.g., the second cell 705-b, the additional NR cell) satisfies the threshold bandwidth, the process flow 700 can proceed to 750. Moreover, as mentioned previously herein, the steps 750-770 of the process flow 700 can be performed with respect to each channel of a cell being considered for an L2N and / or N2N procedure.
[0254] At 750, the UE 715 can selectively adjust one or more parameters for performing a procedure (e.g., an L2N procedure, an N2N procedure) with a cell (e.g., the second cell 705-b, the additional NR cell). In some aspects, the UE 715 can selectively adjust the one or more parameters for performing the procedure based on the comparisons performed at 740 and 745. In particular, the UE 715 can selectively adjust the one or more parameters for performing the procedure based on the bandwidth of the channel of the cell being considered for the L2N and / or N2N procedure at 745 satisfying the threshold bandwidth.
[0255] The parameters for performing a procedure (e.g., an L2N procedure, an N2N procedure) that can be selectively adjusted at 750 can include, but are not limited to, a cell reselection priority metric (e.g., priority_Offset), an RSRP threshold (e.g., ThresX, P_Offset), an RSRQ threshold (e.g., ThresX, Q_Offset), or any combination thereof. Moreover, the parameters can be adjusted on a channel-by-channel basis. For example, while communicating with the first cell 705-a, the UE 715 can determine that a first channel of the second cell 705-b satisfies the threshold bandwidth, and thus can selectively adjust a reselection priority metric, an RSRP threshold, and / or an RSRQ threshold associated with the first channel. In particular, the UE 715 can selectively adjust the one or more parameters for the first channel in order to decrease a probability that the UE 715 can perform an L2N procedure with the first channel of the second cell 705-b. For example, the UE 715 can decrease (e.g., lower) a reselection priority metric (e.g., change priority_Offset) of the first channel, increase an RSRP threshold of the first channel, increase an RSRQ threshold of the first channel, or any combination thereof, in order to decrease a probability that the UE 715 will complete an L2N procedure with the second cell 705-b.
[0256] As another example, while communicating with the second cell 705-b, the UE 715 can determine that a second channel of an additional NR cell satisfies the threshold bandwidth, and thus can selectively adjust a reselection priority metric, an RSRP threshold, and / or an RSRQ threshold associated with the second channel. In particular, the UE 715 can selectively adjust one or more parameters for the second channel in order to reduce a probability that the UE 715 can perform an L2N procedure with the second channel of the additional NR cell. For example, the UE 715 can reduce (e.g., lower) a reselection priority metric (e.g., change priority_Offset) for the second channel, increase an RSRP threshold for the second channel, increase an RSRQ threshold for the second channel, or any combination thereof, in order to reduce a probability that the UE 715 will complete an N2N procedure with the additional NR cell.
[0257] In the context of a potential N2N procedure between the second cell 705-b and an additional NR cell, the UE 715 can selectively adjust one or more parameters associated with performing an N2N procedure with the additional NR cell in order to prioritize the second cell 705-b (e.g., camp on the second cell 705-b). For example, the UE 715 can determine that the second cell 705-b includes one or more channels having a smaller bandwidth than each channel supported by the additional NR cell. In this regard, the UE 715 can prevent an increase in power consumption by refraining from completing an N2N procedure from the second cell 705-b to the additional NR cell. Accordingly, the UE 715 can selectively adjust one or more parameters associated with an N2N procedure from the second cell 705-b to the additional NR cell in order to prioritize the second cell 705-b, thereby enabling the UE 715 to camp on the second cell 705-b and conserve power.
[0258] At 755, the UE 715 can receive one or more reference signals from the second cell 705-b (e.g., an NR cell), an additional NR cell (not shown), or both. For example, in the context of an L2N procedure between the first cell 705-a and the second cell 705-b, the UE 715 can receive one or more reference signals from the second cell 705-b as a candidate for the L2N procedure. As another example, in the context of an N2N procedure between the second cell 705-b and an additional NR cell (not shown), the UE 715 can receive one or more reference signals from the additional NR cell as a candidate for the N2N procedure. In some aspects, the received reference signals can be associated with one or more channels supported by the respective cell.
[0259] At 760, the UE 715 can perform a set of measurements for the received reference signals. The measurements can include, but are not limited to, RSSI measurements, RSRP measurements, RSRQ measurements, SNR measurements, SINR measurements, or any combination thereof.
[0260] At 765, the UE 715 can compare the measurements performed at 760 with the one or more selectively adjusted parameters (e.g., adjusted reselection priority metric, adjusted RSRP / RSRQ threshold) generated at 750. In this regard, the UE 715 can determine whether the measurements performed at 760 for the reference signals satisfy the selectively adjusted threshold. In some aspects, the RSRP measurement can satisfy the adjusted RSRP threshold if the RSRP measurement is greater than or equal to the adjusted RSRP threshold (e.g., if RSRP > RSRP Thresh , then satisfied). Similarly, the RSRQ measurement can satisfy the adjusted RSRQ threshold if the RSRQ measurement is greater than or equal to the adjusted RSRQ threshold (e.g., if RSRQ > RSRQ Thresh , then satisfied).
[0261] For example, at 750, the UE 715 can selectively adjust (e.g., selectively increase) the RSRP threshold for the first channel of the second cell 705-b, and can subsequently perform an RSRP measurement for a reference signal received from the first channel of the second cell 705-b. In this example, the UE 715 can compare the determined RSRP measurement with the adjusted RSRP threshold to determine whether the RSRP measurement satisfies the RSRP threshold.
[0262] If the measurements fail to satisfy one or more of the selectively adjusted parameters (e.g., fail to satisfy the adjusted cell reselection priority metric, adjusted RSRP / RSRQ threshold) at 765, the process flow 700 can proceed to 775. At 775, the UE 715 can refrain from performing a procedure (e.g., L2N procedure, N2N procedure) with the respective channel. For example, if the measurements for the first channel of the second cell 705-b fail to satisfy the adjusted reselection priority metric, adjusted RSRP threshold, adjusted RSRQ threshold, or any combination thereof, the UE 715 can refrain from performing the L2N procedure with the first channel of the second cell 705-b at 775.
[0263] If the measurements satisfy one or more of the selectively adjusted parameters at 765 (e.g., satisfy the adjusted cell reselection priority metric, the adjusted RSRP / RSRQ threshold), the process flow 700 can proceed to 770. At 770, the UE 715 can complete the procedure (e.g., L2N procedure, N2N procedure) with the respective channel. For example, if the measurements of the first channel of the second cell 705-b satisfy the adjusted reselection priority metric, the adjusted RSRP threshold, the adjusted RSRQ threshold, or any combination thereof, the UE 715 can perform one or more actions to complete the L2N procedure with the first channel of the second cell 705-b at 770.
[0264] By completing (or refraining from completing) the procedure with the channels of the second cell 705-b and / or the additional NR cells based on the bandwidth of the respective channel, the techniques described herein can ensure that the UE 715 completes the procedure (e.g., L2N procedure, N2N procedure) with the channels associated with a relatively small bandwidth (and thus, a relatively small power consumption level). In particular, by selectively adjusting the parameters associated with the L2N and / or N2N procedures on a channel-by-channel basis, the UE 715 can refrain from completing the actions / procedures with the channels associated with a high power consumption.
[0265] The techniques described herein can provide improved power saving at the UE 715 by enabling the UE 115 to perform or refrain from performing actions or procedures (e.g., L2N procedure, N2N procedure) with individual channels of the second cell 705-b and / or the additional NR cells based on the respective bandwidth of the respective channel of the respective cell. By enabling the UE 715 to perform (or refrain from performing) the actions or procedures with the channels of the second cell 705-b on a channel-by-channel basis, the techniques described herein can support power saving techniques at the UE 715 while at the same time allowing the UE 715 to establish a wireless connection with the channels of the cells 705 associated with a lower power consumption (e.g., the second cell 705-b).
[0266] Figure 8 A block diagram 800 of a device 805 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown. The device 805 can be an example of aspects of a UE 115 as described herein. The device 805 can include a receiver 810, a transmitter 815, and a communications manager 820. The device 805 can also include a processor. Each of these components can be in communication with one another (e.g., via one or more buses).
[0267] The receiver 810 can provide a 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 techniques for user equipment power saving). Information can be passed on to other components of the device 805. The receiver 810 can utilize a single antenna or a set of multiple antennas.
[0268] The transmitter 815 can provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 can transmit 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 techniques for user equipment power saving). In some examples, the transmitter 815 can be collocated with the receiver 810 in a transceiver module. The transmitter 815 can utilize a single antenna or a set of multiple antennas.
[0269] The communication manager 820, the receiver 810, the transmitter 815, or various combinations thereof, or various components thereof, can be examples of means for performing various aspects of techniques for user equipment power saving as described herein. For example, the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof can support a method for performing one or more of the functions described herein.
[0270] In some examples, the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof can be implemented in hardware (e.g., in communication management circuitry). The hardware can 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 gate or transistor logic, discrete hardware components, or any combination thereof, which are configured as or otherwise support a means for performing the functions described in the present disclosure. In some examples, a processor and memory coupled with the processor can be configured to perform one or more of the functions described herein (e.g., by the processor executing instructions stored in the memory).
[0271] Additionally or alternatively, in some examples, the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof can be implemented by code (e.g., as communication management software or firmware) executed by a processor, if implemented by code executed by a processor, the functions of the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof can be performed by a general-purpose processor, a DSP, a central processing unit (CPU), an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in the present disclosure).
[0272] In some examples, the communications manager 820 can be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in conjunction with the receiver 810, the transmitter 815, or both. For example, the communications manager 820 can receive information from the receiver 810, send information to the transmitter 815, or be integrated in combination with the receiver 810, the transmitter 815, or both, to receive information, transmit information, or perform various other operations as described herein.
[0273] The communications manager 820 can support wireless communication at a UE in accordance with examples as disclosed herein. For example, the communications manager 820 can be configured as or otherwise support a means for receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell. The communications manager 820 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operating parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The communications manager 820 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with the second cell, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The communications manager 820 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The communications manager 820 can be configured as or otherwise support a means for performing at least one action associated with a procedure based on the comparison.
[0274] Additionally, or alternatively, the communications manager 820 can support wireless communication at a UE in accordance with examples as disclosed herein. For example, the communications manager 820 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operating parameters at a UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The communications manager 820 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with a second cell, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The communications manager 820 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The communications manager 820 can be configured as or otherwise support a means for selectively adjusting one or more parameters for performing one or more actions associated with the second cell based on the comparison. The communications manager 820 can be configured as or otherwise support a means for performing at least one action associated with a procedure based on the adjustment.
[0275] By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 (e.g., a processor of the device 805 controlling or otherwise coupled to the receiver 810, the transmitter 815, the communications manager 820, or a combination thereof) can support techniques for improved power saving at a UE 115 by enabling the UE 115 to perform or refrain from performing procedures (e.g., cell addition procedures, cell handover procedures) with individual channels of a cell based on respective bandwidths of the individual channels of the cell. By enabling the UE 115 to perform (or refrain from performing) procedures with channels of a second cell on a channel-by-channel basis, the techniques described herein can support power saving techniques at the UE 115 while at the same time allowing the UE 115 to establish wireless connections associated with channels of lower power consumption. Thus, the techniques described herein can enable reduced power consumption and improved wireless communication at the UE 115.
[0276] Figure 9 A block diagram 900 of a device 905 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown. The device 905 can be an example of aspects of a device 805 or a UE 115 as described herein. The device 905 can include a receiver 910, a transmitter 915, and a communications manager 920. The device 905 can also include a processor. Each of these components can be in communication with one another (e.g., via one or more buses).
[0277] The receiver 910 can provide a 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 techniques for user equipment power saving). Information can be passed on to other components of the device 905. The receiver 910 can utilize a single antenna or a set of multiple antennas.
[0278] The transmitter 915 can provide a means for transmitting signals generated by other components of the device 905. For example, the transmitter 915 can transmit 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 techniques for user equipment power saving). In some examples, the transmitter 915 can be collocated with the receiver 910 in a transceiver module. The transmitter 915 can utilize a single antenna or a set of multiple antennas.
[0279] The device 905 or its various components can be an example of means for performing various aspects of techniques for user equipment power saving as described herein. The communications manager 920 can include a downlink reception manager 925, a trigger condition manager 930, a bandwidth identification manager 935, a bandwidth comparison manager 940, a cell procedure manager 945, or any combination thereof. The communications manager 920 can be an example of aspects of the communications manager 820 as described herein. In some examples, the communications manager 920 or various components thereof can be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in cooperation with the receiver 910, the transmitter 915, or both. For example, the communications manager 920 can receive information from the receiver 910, send information to the transmitter 915, or be integrated in combination with the receiver 910, the transmitter 915, or both, to receive information, transmit information, or perform various other operations as described herein.
[0280] The communications manager 920 can support wireless communication at a UE in accordance with examples as disclosed herein. The downlink reception manager 925 can be configured as or otherwise support a means for receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell. The trigger condition manager 930 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operating parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The bandwidth identification manager 935 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with the second cell, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The bandwidth comparison manager 940 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The cell procedure manager 945 can be configured as or otherwise support a means for performing, based on the comparison, at least one action associated with a procedure.
[0281] Additionally or alternatively, the communications manager 920 can support wireless communication at a UE in accordance with examples as disclosed herein. The trigger condition manager 930 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operating parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The bandwidth identification manager 935 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with the second cell, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The bandwidth comparison manager 940 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The cell procedure manager 945 can be configured as or otherwise support a means for selectively adjusting, based on the comparison, one or more parameters for performing one or more actions associated with the second cell. The cell procedure manager 945 can be configured as or otherwise support a means for performing, based on the adjustment, at least one action associated with a procedure.
[0282] Figure 10A block diagram 1000 of a communications manager 1020 for techniques for user equipment power saving in accordance with aspects of the present disclosure is shown. The communications manager 1020 can be an example of aspects of a communications manager 820, a communications manager 920, or both, described herein. The communications manager 1020, or various components thereof, can be an example of means for performing various aspects of techniques for user equipment power saving as described herein. For example, the communications manager 1020 can include a downlink reception manager 1025, a trigger condition manager 1030, a bandwidth identification manager 1035, a bandwidth comparison manager 1040, a cell procedure manager 1045, a storage manager 1050, an uplink transmission manager 1055, a reference signal reception manager 1060, a measurement manager 1065, a measurement report transmission manager 1070, an operational state manager 1075, or any combination thereof. Each of these components can communicate, directly or indirectly, with one another (e.g., via one or more buses).
[0283] The communications manager 1020 can support wireless communication at a UE in accordance with examples as disclosed herein. The downlink reception manager 1025 can be configured as or otherwise support a means for receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell. The trigger condition manager 1030 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The bandwidth identification manager 1035 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with the second cell, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The bandwidth comparison manager 1040 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The cell procedure manager 1045 can be configured as or otherwise support a means for performing, based on the comparison, at least one action associated with a procedure.
[0284] In some examples, and to support performing the at least one action associated with the procedure, the cell procedure manager 1045 can be configured as or otherwise support a means for refraining from completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel being greater than or equal to the threshold bandwidth.
[0285] In some examples, to support performing the at least one action associated with the procedure, the cell procedure manager 1045 can be configured as or otherwise support a means for completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel being less than or equal to a threshold bandwidth.
[0286] In some examples, to support identifying the at least one bandwidth associated with the second cell, the bandwidth identification manager 1035 can be configured as or otherwise support a means for determining the at least one bandwidth associated with the second cell based on a previous wireless connection between the second cell and the UE, where the downlink transmission is received after communicating with the second cell. In some examples, to support identifying the at least one bandwidth associated with the second cell, the storage manager 1050 can be configured as or otherwise support a means for storing the at least one bandwidth in memory.
[0287] In some examples, to support identifying the at least one bandwidth associated with the second cell, the uplink transmission manager 1055 can be configured as or otherwise support a means for transmitting, to the first cell, the second cell, the second UE, or any combination thereof, a request for information associated with the at least one bandwidth of the second cell based on the trigger condition being satisfied. In some examples, to support identifying the at least one bandwidth associated with the second cell, the downlink reception manager 1025 can be configured as or otherwise support a means for receiving, in response to the request, an indication of the at least one bandwidth associated with the second cell, where identifying the at least one bandwidth is based on the indication.
[0288] In some examples, identifying that the trigger condition has been satisfied is based on identifying that the UE is in an idle mode of operation or a connected mode of operation.
[0289] In some examples, the uplink transmission manager 1055 can be configured as or otherwise support a means for transmitting, to the first cell, an uplink transmission indicating that the trigger condition is satisfied. In some examples, the downlink reception manager 1025 can be configured as or otherwise support a means for receiving, from the first cell based on transmitting the uplink transmission, a second downlink transmission including information for performing the at least one action associated with the procedure.
[0290] In some examples, the reference signal reception manager 1060 can be configured as or otherwise support a means for receiving one or more reference signals from the second cell, the one or more reference signals being associated with a set of channels supported by the second cell, in support of performing at least one action. In some examples, the measurement manager 1065 can be configured as or otherwise support a means for performing a set of measurements for the one or more reference signals received from the second cell, in support of performing at least one action. In some examples, the measurement report transmission manager 1070 can be configured as or otherwise support a means for transmitting a measurement report to the first cell based on performing the set of measurements, where the measurement report omits measurements associated with one or more channels of the set of channels based on at least one bandwidth associated with the one or more channels being greater than or equal to a threshold bandwidth, in support of performing at least one action.
[0291] In some examples, the reference signal reception manager 1060 can be configured as or otherwise support a means for receiving a reference signal from the second cell associated with a channel supported by the second cell, where at least one bandwidth is associated with the channel, in support of performing at least one action. In some examples, the measurement manager 1065 can be configured as or otherwise support a means for refraining from performing a measurement for the received reference signal based on the at least one bandwidth associated with the channel being greater than or equal to a threshold bandwidth, in support of performing at least one action.
[0292] In some examples, the uplink transmission manager 1055 can be configured as or otherwise support a means for transmitting, to the first cell, an uplink transmission associated with a radio link failure at the UE based on the at least one bandwidth being greater than or equal to the threshold bandwidth, in support of performing at least one action.
[0293] In some examples, the reference signal reception manager 1060 can be configured as or otherwise support a means for receiving, from the second cell, one or more reference signals, the one or more reference signals being associated with a set of channels supported by the second cell, in support of performing at least one action. In some examples, the measurement manager 1065 can be configured as or otherwise support a means for performing a set of measurements for the one or more reference signals received from the second cell, in support of performing at least one action. In some examples, the measurement report transmission manager 1070 can be configured as or otherwise support a means for transmitting, to the first cell, a measurement report based on performing the set of measurements, where the measurement report omits measurements associated with one or more channels of the set of channels based on at least one bandwidth associated with the one or more channels being greater than or equal to a threshold bandwidth, in support of performing at least one action.
[0294] In some examples, the reference signal reception manager 1060 can be configured as or otherwise support a means for receiving, from the second cell, a reference signal associated with a channel supported by the second cell, in support of performing at least one action. In some examples, the measurement manager 1065 can be configured as or otherwise support a means for refraining from performing a measurement for the received reference signal based on at least one bandwidth associated with the channel being greater than or equal to a threshold bandwidth, in support of performing at least one action.
[0295] In some examples, the uplink transmission manager 1055 can be configured as or otherwise support a means for transmitting, to the first cell, an uplink transmission associated with a radio link failure at the UE based on the at least one bandwidth being greater than or equal to the threshold bandwidth, in support of performing at least one action.
[0296] In some examples, the operational state manager 1075 can be configured as or otherwise support a means for entering an idle mode of operation based on the at least one bandwidth being greater than or equal to the threshold bandwidth, in support of performing at least one action.
[0297] In some examples, the bandwidth identification manager 1035 can be configured as or otherwise support a means for identifying the at least one bandwidth associated with the second cell based on an indication of the at least one bandwidth included within the downlink transmission. In some examples, the procedure includes a cell change procedure, a cell addition procedure, a cell change procedure, a cell re-direction procedure, or any combination thereof. In some examples, the first cell is associated with a first radio access technology and the second cell is associated with a second radio access technology different from the first radio access technology.
[0298] In some examples, the first radio access technology includes a long term evolution radio access technology, a fourth generation radio access technology, or both. In some examples, the second radio access technology includes a new radio access technology, a fifth generation radio access technology, or both. In some examples, the first cell and the second cell are associated with a common radio access technology. In some examples, the common radio access technology includes a new radio access technology, a fifth generation radio access technology, or both.
[0299] Additionally or alternatively, the communications manager 1020 can support wireless communication at a UE in accordance with examples as disclosed herein. In some examples, the trigger condition manager 1030 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operating parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. In some examples, the bandwidth identification manager 1035 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with a second cell, the at least one bandwidth being based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both. In some examples, the bandwidth comparison manager 1040 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. In some examples, the cell procedure manager 1045 can be configured as or otherwise support a means for selectively adjusting one or more parameters for performing one or more actions associated with the second cell based on the comparison. In some examples, the cell procedure manager 1045 can be configured as or otherwise support a means for performing at least one action associated with the procedure based on the adjustment.
[0300] In some examples, to support performing the at least one action associated with the procedure, the cell procedure manager 1045 can be configured as or otherwise support a means for refraining from completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel being greater than or equal to the threshold bandwidth. In some examples, to support performing the at least one action associated with the procedure, the cell procedure manager 1045 can be configured as or otherwise support a means for completing a procedure associated with a channel supported by the second cell based on the at least one bandwidth associated with the channel being less than or equal to the threshold bandwidth.
[0301] In some examples, to support identifying at least one bandwidth associated with the second cell, the bandwidth comparison manager 1040 can be configured as or otherwise support a means for determining the at least one bandwidth associated with the second cell based on a previous wireless connection between the second cell and the UE. In some examples, to support identifying at least one bandwidth associated with the second cell, the storage manager 1050 can be configured as or otherwise support a means for storing the at least one bandwidth in memory.
[0302] In some examples, the uplink transmission manager 1055 can be configured as or otherwise support a means for transmitting, to the first cell, an uplink transmission indicating that the trigger condition is satisfied. In some examples, the downlink reception manager 1025 can be configured as or otherwise support a means for receiving, from the first cell, a downlink transmission based on transmitting the uplink transmission, the downlink transmission including additional information for performing at least one action associated with the procedure.
[0303] In some examples, to support selectively adjusting the one or more parameters, the cell procedure manager 1045 can be configured as or otherwise support a means for selectively increasing a reference signal received power threshold, a reference signal received quality threshold, or both.
[0304] In some examples, the cell procedure manager 1045 can be configured as or otherwise support a means for receiving, from the second cell, one or more reference signals associated with one or more channels supported by the second cell. In some examples, the cell procedure manager 1045 can be configured as or otherwise support a means for performing a set of measurements for the one or more reference signals received from the second cell. In some examples, the cell procedure manager 1045 can be configured as or otherwise support a means for determining that a measurement associated with the one or more channels satisfies a reference signal received power threshold, a reference signal received quality threshold, or both, where performing the at least one action is based on determining that the measurement associated with the one or more channels satisfies the reference signal received power threshold, the reference signal received quality threshold, or both.
[0305] In some examples, the measurement associated with the one or more channels satisfies the reference signal received power threshold if the measurement is greater than or equal to the reference signal received power threshold. In some examples, the measurement associated with the one or more channels satisfies the reference signal received quality threshold if the measurement is greater than or equal to the reference signal received quality threshold.
[0306] Figure 11 A diagram illustrating a system 1100 including a device 1105 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown. The device 1105 can be an example of or include the components of a device 805, a device 905, or a UE 115 as described herein. The device 1105 can communicate wirelessly with one or more base stations 105, UEs 115, or any combination thereof. The device 1105 can include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 1120, an input / output (I / O) controller 1110, a transceiver 1115, an antenna 1125, a memory 1130, code 1135, and a processor 1140. These components can be in electronic communication or otherwise
[0307] The I / O controller 1110 can manage input and output signals for the device 1105. The I / O controller 1110 can also manage peripherals not integrated into the device 1105. In some cases, the I / O controller 1110 can represent a physical connection or port to an external peripheral. In some cases, the I / O controller 1110 can utilize an operating system such as or another known operating system. Additionally or alternatively, the I / O controller 1110 can represent or interact with a modem, a keyboard, a mouse, a touchscreen, or similar devices. In some cases, the I / O controller 1110 can be implemented as part of a processor, such as the processor 1140. In some cases, a user can interact with the device 1105 via the I / O controller 1110 or via hardware components controlled by the I / O controller 1110.
[0308] In some cases, the device 1105 can include a single antenna 1125. However, in some other cases the device 1105 can have more than one antenna 1125, which can be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1115 can communicate bi-directionally, via the one or more antennas 1125, wired, or wireless links as described herein. For example, the transceiver 1115 can represent a wireless transceiver and can communicate bi-directionally with another wireless transceiver. The transceiver 1115 can also include a modem to modulate the packets and provide the modulated packets to the one or more antennas 1125 for transmission, and to demodulate packets received from the one or more antennas 1125. The transceiver 1115, or transceiver 1115 and one or more antennas 1125, can be an example of a transmitter 815, a transmitter 915, a receiver 810, a receiver 910, or any combination thereof, or a component thereof, as described herein.
[0309] Memory 1130 can include random access memory (RAM) and read only memory (ROM). The memory 1130 can store computer-readable, computer-executable code 1135 including instructions that, when executed, cause the device 1105 to perform various functions described herein. The code 1135 can be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1135 can not be directly executable by the processor 1140 but can cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 1130 can include, among other things, a basic I / O system (BIOS), which can control basic hardware or software operation such as the interaction with peripheral components or devices.
[0310] The processor 1140 can include an intelligent hardware device, (e.g., a general- purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1140 can be configured to operate a memory array using a memory controller. In some other cases, a memory controller can be integrated into the processor 1140. The processor 1140 can be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1130) to cause the device 1105 to perform various functions (e.g., functions or tasks in support of techniques for user equipment power saving). For example, the device 1105 or a component of the device 1105 can include the processor 1140 and the memory 1130 coupled to the processor 1140 that are configured to perform various functions described herein.
[0311] The communications manager 1120 can support wireless communication at a UE in accordance with examples as disclosed herein. For example, the communications manager 1120 can be configured as or otherwise support a means for receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell. The communications manager 1120 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operating parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The communications manager 1120 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with the second cell, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The communications manager 1120 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The communications manager 1120 can be configured as or otherwise support a means for performing at least one action associated with a procedure based on the comparison.
[0312] Additionally or alternatively, the communications manager 1120 can support wireless communication at a UE in accordance with examples as disclosed herein. For example, the communications manager 1120 can be configured as or otherwise support a means for identifying that a trigger condition associated with one or more operating parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The communications manager 1120 can be configured as or otherwise support a means for identifying, based on the trigger condition being satisfied, at least one bandwidth associated with the second cell, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The communications manager 1120 can be configured as or otherwise support a means for comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The communications manager 1120 can be configured as or otherwise support a means for selectively adjusting one or more parameters for performing one or more actions associated with the second cell based on the comparison. The communications manager 1120 can be configured as or otherwise support a means for performing at least one action associated with a procedure based on the adjustment.
[0313] By including or configuring the communications manager 1120 in accordance with examples as described herein, the device 1105 can support techniques for improved power saving at a UE 115 by enabling the UE 115 to perform or refrain from performing procedures with individual channels of a cell based on respective bandwidths of the individual channels of the cell (e.g., cell addition procedures, cell handover procedures). By enabling the UE 115 to perform (or refrain from performing) procedures with channels of a second cell on a channel-by-channel basis, the techniques described herein can support power saving techniques at the UE 115 while at the same time allowing the UE 115 to establish wireless connections with channels associated with lower power consumption. Thus, the techniques described herein can enable reduced power consumption, improved battery life, and improved wireless communication at the UE 115.
[0314] In some examples, the communications manager 20 can be configured to perform or support performance of various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 15, the one or more antennas 25, or any combination thereof. Although the communications manager 20 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 20 can be supported by or performed by the processor 40, the memory 30, the code 35, or any combination thereof. For example, the code 35 can include instructions executable by the processor 40 to cause the device 05 to perform various aspects of the techniques for user equipment power saving as described herein, or the processor 40 and the memory 30 can be otherwise configured to perform or support performance of such operations.
[0315] Figure 12 A method 1200 that supports techniques for user equipment power saving is illustrated, in which operations of method 1200 can be implemented by a UE or its components as described herein. For example, the operations of method 1200 can be performed by a UE 115 as described with reference to FIGs. 1-9. In some examples, a UE can execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE can perform various ones of the described functions using special-purpose hardware. Figures 1 to 11
[0316] At 1205, the method can include receiving a downlink transmission from a first cell, the downlink transmission including information for performing one or more actions associated with a second cell. The operations of 1205 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1205 can be performed by a downlink reception manager 1025 as described with reference to FIG. 10. Figure 10
[0317] At 1210, the method can include identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on the power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The operations of 1210 can be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1210 can be performed by a trigger condition manager 1030 as described with reference to Figure 10
[0318] At 1215, the method can include identifying at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both. The operations of 1215 can be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1215 can be performed by a bandwidth identification manager 1035 as described with reference to Figure 10
[0319] At 1220, the method can include comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The operations of 1220 can be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1220 can be performed by a bandwidth comparison manager 1040 as described with reference to Figure 10
[0320] At 1225, the method can include performing at least one action associated with a procedure based on the comparison. The operations of 1225 can be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1225 can be performed by a cell procedure manager 1045 as described with reference to Figure 10
[0321] Figure 13 A method 1300 that facilitates techniques for user equipment power saving is illustrated. The operations of method 1300 can be implemented by a UE or its components as described herein. For example, the operations of method 1300 can be performed by a UE 115 as described with reference to Figures 1 to 11
[0322] At 1305, the method can include receiving a downlink transmission from a first cell, the downlink transmission including information for performing one or more actions associated with a second cell. The operations of 1305 can be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1305 can be performed by a UE 115 as described with reference toFigure 10 The described downlink reception manager 1025 performs the functions.
[0323] At 1310, the method can include identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The operations of 1310 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1310 can be performed by a trigger condition manager 1030 as described with reference to Figure 10
[0324] At 1315, the method can include identifying at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both. The operations of 1315 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1315 can be performed by a bandwidth identification manager 1035 as described with reference to Figure 10
[0325] At 1320, the method can include comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The operations of 1320 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1320 can be performed by a bandwidth comparison manager 1040 as described with reference to Figure 10
[0326] At 1325, the method can include receiving one or more reference signals from the second cell, the one or more reference signals being associated with a set of channels supported by the second cell. The operations of 1325 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1325 can be performed by a reference signal reception manager 1060 as described with reference to Figure 10
[0327] At 1330, the method can include performing a set of measurements for the one or more reference signals received from the second cell. The operations of 1330 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1330 can be performed by a measurement manager 1065 as described with reference to Figure 10
[0328] At 1335, the method can include transmitting a measurement report to the first cell based on performing the set of measurements, where the measurement report omits measurements associated with one or more channels of the set of channels based on at least one bandwidth associated with the one or more channels being greater than or equal to a threshold bandwidth. The operations of 1335 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1335 can be performed by a measurement report transmitting manager 1070 as described with reference to Figure 10
[0329] Figure 14 A method 1400 that supports techniques for user equipment power saving in accordance with aspects of the present disclosure is shown and described. The operations of method 1400 can be implemented by a UE or its components as described herein. For example, the operations of method 1400 can be performed by a UE 115 as described with reference to Figures 1 to 11 FIG. 13 shows a block diagram of a wireless communications device that can receive downlink transmissions including information for performing one or more actions associated with a second cell in accordance with aspects of the present disclosure. The device can include a receiver 1010, a communications manager 1035, and a transmitter 1020. The communications manager 1035 can be an example of aspects of the communications manager 910 described with reference to FIG. 9.
[0330] At 1405, the method can include receiving a downlink transmission from a first cell, the downlink transmission including information for performing one or more actions associated with a second cell. The operations of 1405 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1405 can be performed by a downlink reception manager 1025 as described with reference to Figure 10 FIG. 13 shows a block diagram of a wireless communications device that can receive downlink transmissions including information for performing one or more actions associated with a second cell in accordance with aspects of the present disclosure. The device can include a receiver 1010, a communications manager 1035, and a transmitter 1020. The communications manager 1035 can be an example of aspects of the communications manager 910 described with reference to FIG. 9.
[0331] At 1410, the method can include identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The operations of 1410 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 can be performed by a trigger condition manager 1030 as described with reference to Figure 10 FIG. 13 shows a block diagram of a wireless communications device that can receive downlink transmissions including information for performing one or more actions associated with a second cell in accordance with aspects of the present disclosure. The device can include a receiver 1010, a communications manager 1035, and a transmitter 1020. The communications manager 1035 can be an example of aspects of the communications manager 910 described with reference to FIG. 9.
[0332] At 1415, the method can include identifying at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both. The operations of 1415 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1415 can be performed by a bandwidth identification manager 1035 as described with reference to Figure 10 FIG. 13 shows a block diagram of a wireless communications device that can receive downlink transmissions including information for performing one or more actions associated with a second cell in accordance with aspects of the present disclosure. The device can include a receiver 1010, a communications manager 1035, and a transmitter 1020. The communications manager 1035 can be an example of aspects of the communications manager 910 described with reference to FIG. 9.
[0333] At 1420, the method can include comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The operations of 1420 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1420 can be performed by a bandwidth comparison manager 1040 as described with reference to Figure 10
[0334] At 1425, the method can include receiving, from the second cell, a reference signal associated with a channel supported by the second cell, where the at least one bandwidth is associated with the channel. The operations of 1425 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1425 can be performed by a reference signal reception manager 1060 as described with reference to Figure 10
[0335] At 1430, the method can include refraining from performing a measurement for the received reference signal based on the at least one bandwidth associated with the channel being greater than or equal to the threshold bandwidth. The operations of 1430 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1430 can be performed by a measurement manager 1065 as described with reference to Figure 10
[0336] Figure 15 A method 1500 that facilitates techniques for user equipment power saving is illustrated. The operations of method 1500 can be implemented by a UE or its components as described herein. For example, the operations of method 1500 can be performed by a UE 115 as described with reference to Figures 1 to 11
[0337] At 1505, the method can include receiving, from a first cell, a downlink transmission including information for performing one or more actions associated with a second cell. The operations of 1505 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 can be performed by a downlink reception manager 1025 as described with reference to Figure 10
[0338] At 1510, the method can include identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The operations of 1510 can be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 can be performed by a trigger condition manager 1035 as described with reference to Figure 10 The described trigger condition manager 1030 performs the function.
[0339] At 1515, the method can include identifying at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a previous wireless connection between the second cell and the UE, a previous wireless connection between the second cell and an additional UE, or both. The operations of 1515 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1515 can be performed by a bandwidth identification manager 1035 as described with reference to Figure 10
[0340] At 1520, the method can include comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The operations of 1520 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1520 can be performed by a bandwidth comparison manager 1040 as described with reference to Figure 10
[0341] At 1525, the method can include transmitting, to the first cell, an uplink transmission associated with a radio link failure at the UE based on the at least one bandwidth being greater than or equal to the threshold bandwidth. The operations of 1525 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1525 can be performed by an uplink transmission manager 1055 as described with reference to Figure 10
[0342] Figure 16 A method 1600 that facilitates techniques for user equipment power saving is shown and used to illustrate the various aspects of the disclosure. The operations of method 1600 can be implemented by a UE or its components as described herein. For example, the operations of method 1600 can be performed by a UE 115 as described with reference to Figures 1 to 11 FIGS. 15 through 16 describe functions implemented in the UE. The functions can be implemented in software, firmware, hardware, or a combination thereof. In one example, the functions described with reference to FIGS. 15 through 16 are implemented in hardware, by using a special-purpose processor or by using programmable computer hardware components, such as
[0343] At 1605, the method can include identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both. The operations of 1605 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1605 can be performed by a trigger condition manager 1030 as described with reference to Figure 10
[0344] At 1610, the method can include identifying at least one bandwidth associated with the second cell based on the trigger condition being satisfied, the at least one bandwidth being based on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both. The operations of 1610 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1610 can be performed by a bandwidth identification manager 1035 as described with reference to Figure 10
[0345] At 1615, the method can include comparing the at least one bandwidth associated with the second cell to a threshold bandwidth. The operations of 1615 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1615 can be performed by a bandwidth comparison manager 1040 as described with reference to Figure 10
[0346] At 1620, the method can include selectively adjusting one or more parameters for performing one or more actions associated with the second cell based on the comparison. The operations of 1620 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1620 can be performed by a cell procedure manager 1045 as described with reference to Figure 10
[0347] At 1625, the method can include performing at least one action associated with the procedure based on the adjustment. The operations of 1625 can be performed in accordance with the examples disclosed herein. In some examples, aspects of the operations of 1625 can be performed by a cell procedure manager 1045 as described with reference to Figure 10
[0348] The following provides an overview of aspects of the disclosure:
[0349] Aspect 1 : A method for wireless communication at a UE, comprising: receiving a downlink transmission from a first cell, the downlink transmission including information for performing one or more actions associated with a second cell; identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based at least in part on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both; identifying at least one bandwidth associated with the second cell based at least in part on the trigger condition being satisfied, the at least one bandwidth being based at least in part on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both; comparing the at least one bandwidth associated with the second cell to a threshold bandwidth; and performing at least one action associated with a procedure based at least in part on the comparison.
[0350] Aspect 2: The method of aspect 1, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure comprises refraining from completing the procedure associated with the channel based at least in part on the at least one bandwidth associated with the channel supported by the second cell being greater than or equal to a threshold bandwidth.
[0351] Aspect 3: The method of aspect 1, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure comprises completing the procedure associated with the channel based at least in part on the at least one bandwidth associated with the channel supported by the second cell being less than or equal to a threshold bandwidth.
[0352] Aspect 4: The method of any of aspects 1-3, wherein identifying the at least one bandwidth associated with the second cell comprises determining the at least one bandwidth associated with the second cell based at least in part on a previous wireless connection between the second cell and the UE, wherein the downlink transmission is received after communicating with the second cell; and storing the at least one bandwidth in a memory.
[0353] Aspect 5: The method of any of aspects 1-3, wherein identifying the at least one bandwidth associated with the second cell comprises transmitting, to the first cell, the second cell, the second UE, or any combination thereof, a request for information associated with at least one bandwidth of the second cell based at least in part on satisfying a trigger condition; and receiving, in response to the request, an indication of the at least one bandwidth associated with the second cell, wherein identifying the at least one bandwidth is based at least in part on the indication.
[0354] Aspect 6: The method of any of aspects 1-5, wherein identifying that the trigger condition has been satisfied is based at least in part on identifying that the UE is in an idle mode of operation or a connected mode of operation.
[0355] Aspect 7: The method of any of aspects 1-6, further comprising transmitting, to the first cell, an uplink transmission indicating that the trigger condition is satisfied; and receiving, from the first cell based at least in part on transmitting the uplink transmission, a second downlink transmission comprising information for performing the at least one action associated with the procedure.
[0356] Aspect 8: The method of any of aspects 1 through 7, wherein the downlink transmission comprises an indication for the UE to perform measurements of one or more reference signals received from the second cell, wherein performing the at least one action comprises: receiving, from the second cell, the one or more reference signals, the one or more reference signals being associated with a set of channels supported by the second cell; performing a set of measurements for the one or more reference signals received from the second cell; and transmitting, to the first cell, a measurement report based at least in part on performing the set of measurements, wherein the measurement report omits measurements associated with one or more channels of the set of channels based at least in part on at least one bandwidth associated with the one or more channels being greater than or equal to a threshold bandwidth.
[0357] Aspect 9: The method of any of aspects 1 through 7, wherein the downlink transmission comprises an indication for the UE to perform measurements of one or more reference signals received from the second cell, wherein performing the at least one action comprises: receiving, from the second cell, a reference signal associated with a channel supported by the second cell, wherein at least one bandwidth is associated with the channel; and refraining from performing measurements for the received reference signal based at least in part on the at least one bandwidth associated with the channel being greater than or equal to a threshold bandwidth.
[0358] Aspect 10: The method of any of aspects 1 through 7, wherein the downlink transmission comprises an indication for the UE to establish a wireless connection with the second cell, wherein performing the at least one action comprises: transmitting, to the first cell, an uplink transmission associated with a radio link failure at the UE based at least in part on the at least one bandwidth being greater than or equal to a threshold bandwidth.
[0359] Aspect 11: The method of any of aspects 1 through 7, wherein the downlink transmission comprises an indication for the UE to perform a handover procedure from the first cell to the second cell, wherein performing the at least one action comprises: receiving, from the second cell, one or more reference signals, the one or more reference signals being associated with a set of channels supported by the second cell; performing a set of measurements for the one or more reference signals received from the second cell; and transmitting, to the first cell, a measurement report based at least in part on performing the set of measurements, wherein the measurement report omits measurements associated with one or more channels of the set of channels based at least in part on at least one bandwidth associated with the one or more channels being greater than or equal to a threshold bandwidth.
[0360] Aspect 12: The method of any of aspects 1 through 7, wherein the downlink transmission comprises an indication for the UE to perform a handover procedure from the first cell to the second cell, wherein performing the at least one action comprises: receiving, from the second cell, a reference signal associated with a channel supported by the second cell; and refraining from performing a measurement for the received reference signal based at least in part on the at least one bandwidth being greater than or equal to the threshold bandwidth.
[0361] Aspect 13: The method of any of aspects 1 through 7, wherein the downlink transmission comprises an indication for the UE to perform a handover procedure from the first cell to the second cell, wherein performing the at least one action comprises: transmitting, to the first cell, an uplink transmission associated with a radio link failure at the UE based at least in part on the at least one bandwidth being greater than or equal to the threshold bandwidth.
[0362] Aspect 14: The method of any of aspects 1 through 7, wherein the downlink transmission comprises an indication for the UE to perform a release procedure with a cell redirection from the first cell to the second cell, wherein performing the at least one action comprises: entering an idle mode of operation based at least in part on the at least one bandwidth being greater than or equal to the threshold bandwidth.
[0363] Aspect 15: The method of any of aspects 1 through 14, further comprising: identifying the at least one bandwidth associated with the second cell based at least in part on an indication of the at least one bandwidth included within the downlink transmission.
[0364] Aspect 16: The method of any of aspects 1 through 15, wherein the procedure comprises a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof.
[0365] Aspect 17: The method of any of aspects 1 through 16, wherein the first cell is associated with a first radio access technology and the second cell is associated with a second radio access technology different from the first radio access technology.
[0366] Aspect 18: The method of aspect 17, wherein the first radio access technology comprises a long term evolution radio access technology, a fourth generation radio access technology, or both, and the second radio access technology comprises a new radio access technology, a fifth generation radio access technology, or both.
[0367] Aspect 19: The method of any of aspects 1 through 16, wherein the first cell and the second cell are associated with a common radio access technology.
[0368] Aspect 20: The method of Aspect 19, wherein the common radio access technology comprises a new radio access technology, a fifth generation radio access technology, or both.
[0369] Aspect 21: A method for wireless communication at a UE, comprising: identifying that a trigger condition associated with one or more operational parameters at the UE is satisfied based at least in part on a power level of the UE being less than or equal to a threshold power level, a throughput at the UE being less than or equal to a threshold throughput, or both; identifying at least one bandwidth associated with a second cell based at least in part on the trigger condition being satisfied, the at least one bandwidth based at least in part on a prior wireless connection between the second cell and the UE, a prior wireless connection between the second cell and an additional UE, or both; comparing the at least one bandwidth associated with the second cell to a threshold bandwidth; selectively adjusting one or more parameters for performing one or more actions associated with the second cell based at least in part on the comparing; and performing at least one action associated with a procedure based at least in part on the adjusting.
[0370] Aspect 22: The method of Aspect 21, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure comprises refraining from completing the procedure associated with the channel based at least in part on the at least one bandwidth associated with the channel supported by the second cell being greater than or equal to the threshold bandwidth.
[0371] Aspect 23: The method of Aspect 21, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure comprises completing the procedure associated with the channel based at least in part on the at least one bandwidth associated with the channel supported by the second cell being less than or equal to the threshold bandwidth.
[0372] Aspect 24: The method of any one of Aspects 21-23, wherein identifying the at least one bandwidth associated with the second cell comprises determining the at least one bandwidth associated with the second cell based at least in part on the prior wireless connection between the second cell and the UE; and storing the at least one bandwidth in a memory.
[0373] Aspect 25: The method of any one of Aspects 21-24, further comprising: transmitting an uplink transmission to the first cell indicating that the trigger condition is satisfied; and receiving a downlink transmission from the first cell based at least in part on transmitting the uplink transmission, the downlink transmission comprising additional information for performing the at least one action associated with the procedure.
[0374] Aspect 26: The method of any of aspects 21 through 25, wherein selectively adjusting one or more parameters comprises selectively increasing a reference signal received power threshold, a reference signal received quality threshold, or both.
[0375] Aspect 27: The method of aspect 26, further comprising: receiving one or more reference signals from the second cell, the one or more reference signals being associated with one or more channels supported by the second cell; performing a set of measurements for the one or more reference signals received from the second cell; and determining that a measurement associated with the one or more channels satisfies a reference signal received power threshold, a reference signal received quality threshold, or both, wherein performing the at least one action is based at least in part on determining that the measurement associated with the one or more channels satisfies the reference signal received power threshold, the reference signal received quality threshold, or both.
[0376] Aspect 28: The method of aspect 27, wherein the measurement associated with the one or more channels satisfies the reference signal received power threshold if the measurement is greater than or equal to the reference signal received power threshold, and the measurement associated with the one or more channels satisfies the reference signal received quality threshold if the measurement is greater than or equal to the reference signal received quality threshold.
[0377] Aspect 29: An apparatus for wireless communication at a UE, comprising a processor; memory coupled with the processor; and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the method of any of aspects 1 through 20.
[0378] Aspect 30: An apparatus for wireless communication at a UE, comprising at least one means for performing the method of any of aspects 1 through 20.
[0379] Aspect 31: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any of aspects 1 through 20.
[0380] Aspect 32: An apparatus for wireless communication at a UE, comprising a processor; memory coupled with the processor; and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the method of any of aspects 21 through 28.
[0381] Aspect 33: An apparatus for wireless communication at a UE, comprising at least one means for performing the method of any of aspects 21 through 28.
[0382] Aspect 34: A non-transitory computer-readable medium storing code for wireless communications at a UE, the code comprising instructions executable by a processor to perform a method of any of aspects 21 through 28.
[0383] It should be noted that the methods described herein describe possible implementations, and that the operations and the steps can be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods can be combined.
[0384] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system can be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology can be used in much of the description, aspects of the described technology can be applied to purposes other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described technology can be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and others.
[0385] Information and signals described herein can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that can be referenced throughout the description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0386] The various illustrative blocks and components described in connection with the disclosure herein can be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, a FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor can be a microprocessor, but in the alternative, the processor can be any processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).
[0387] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations thereof. Features implementing functions can also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0388] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium can be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, non-transitory computer-readable media can comprise 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-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the 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 medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
[0389] As used herein, including in the claims “or” as used in a list of items (for example, a list of items prefaced by a phrase such as “at least one of’ or “one or more of’) indicates 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” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” can be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on.”
[0390] In the appended figures, similar components or features can have similar drawing references. Further, various components of the same type can be distinguished by adding a dash and a second label that distinguishes among the similar components. If only the first designation is used in the description, the description is applicable to any of the similar components having the same first designation irrespective of the second designation.
[0391] The description set forth herein describes example configurations and is not intended to represent the only examples or the only structures in which the claims can be practiced. The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting of other examples. The detailed description includes specific details to provide an understanding of the described techniques. However, techniques can be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.
[0392] The description herein is presented to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not to be limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for conducting wireless communication at a user equipment (UE), comprising: Receive downlink transmissions from a first cell, the downlink transmissions including information for performing one or more actions associated with a second cell; The triggering condition associated with one or more operating parameters at the UE is identified at least in part based on the UE’s power level being less than or equal to a threshold power level, the throughput at the UE being less than or equal to a threshold throughput, or both. At least one bandwidth associated with at least one channel of the second cell is identified at least in part based on the satisfaction of the triggering condition, the at least one bandwidth being at least in part based on a previous radio connection between the second cell and the UE, a previous radio connection between the second cell and an additional UE, or both. The at least one bandwidth associated with the at least one channel of the second cell is compared with a threshold bandwidth; as well as At least one action associated with the procedure is performed based at least in part on the comparison.
2. The method of claim 1, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure includes: The procedure associated with the channel supported by the second cell is suppressed at least in part based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
3. The method of claim 1, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure includes: The procedure associated with the channel supported by the second cell is completed at least in part based on the fact that at least one bandwidth associated with the channel is less than or equal to the threshold bandwidth.
4. The method of claim 1, wherein identifying the at least one bandwidth associated with the second cell comprises: The at least one bandwidth associated with the second cell is determined at least in part based on the previous radio connection between the second cell and the UE, wherein the downlink transmission is received after communication with the second cell; as well as The at least one bandwidth is stored in memory.
5. The method of claim 1, wherein identifying the at least one bandwidth associated with the second cell comprises: A request is made to transmit, at least in part, the first cell, the second cell, the second UE, or any combination thereof, for information associated with at least one bandwidth of the second cell, based on the fulfillment of the triggering condition; as well as In response to the request, an indication of at least one bandwidth associated with the second cell is received, wherein the identification of the at least one bandwidth is based at least in part on the indication.
6. The method of claim 1, wherein identifying that the triggering condition has been satisfied is at least in part based on identifying that the UE is in an idle operation mode or a connected operation mode.
7. The method of claim 1, further comprising: Transmit an uplink transmission indicating that the triggering condition is met to the first cell; as well as The second downlink transmission is received from the first cell at least in part based on the transmission of the uplink transmission, the second downlink transmission including information for performing the at least one action associated with the procedure.
8. The method of claim 1, wherein the downlink transmission includes an instruction for the UE to perform a measurement on one or more reference signals received from the second cell, wherein performing the at least one action includes: The one or more reference signals are received from the second cell, the one or more reference signals being associated with a set of channels supported by the second cell; Perform a set of measurements on the one or more reference signals received from the second cell; as well as Measurement reports are transmitted to the first cell at least in part based on the execution of the set of measurements, wherein the measurement reports omit measurements associated with the one or more channels based at least in part on the fact that at least one bandwidth associated with one or more channels in the channel set is greater than or equal to the threshold bandwidth.
9. The method of claim 1, wherein the downlink transmission includes an instruction for the UE to perform a measurement on one or more reference signals received from the second cell, wherein performing the at least one action includes: Receive a reference signal associated with a channel supported by the second cell from the second cell, wherein at least one bandwidth is associated with the channel; as well as Measurements of the received reference signal are suppressed, at least in part, based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
10. The method of claim 1, wherein the downlink transmission includes an instruction to establish a radio connection between the UE and the second cell, wherein performing the at least one action includes: Uplink transmissions associated with radio link failures at the UE are transmitted to the first cell at least in part based on the at least one bandwidth being greater than or equal to the threshold bandwidth.
11. The method of claim 1, wherein the downlink transmission includes an instruction to cause the UE to perform a handover procedure from the first cell to the second cell, wherein performing the at least one action includes: Receive one or more reference signals from the second cell, the one or more reference signals being associated with a set of channels supported by the second cell; Perform a set of measurements on the one or more reference signals received from the second cell; as well as Measurement reports are transmitted to the first cell at least in part based on the execution of the set of measurements, wherein the measurement reports omit measurements associated with the one or more channels based at least in part on the fact that at least one bandwidth associated with one or more channels in the channel set is greater than or equal to the threshold bandwidth.
12. The method of claim 1, wherein the downlink transmission includes an instruction to cause the UE to perform a handover procedure from the first cell to the second cell, wherein performing the at least one action includes: Receive a reference signal associated with a channel supported by the second cell from the second cell; as well as Measurements of the received reference signal are suppressed, at least in part, based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
13. The method of claim 1, wherein the downlink transmission includes an instruction to cause the UE to perform a handover procedure from the first cell to the second cell, wherein performing the at least one action includes: Uplink transmissions associated with radio link failures at the UE are transmitted to the first cell at least in part based on the at least one bandwidth being greater than or equal to the threshold bandwidth.
14. The method of claim 1, wherein the downlink transmission includes instructing the UE to execute a release procedure with cell redirection from the first cell to the second cell, wherein executing the at least one action includes: The idle operation mode is entered at least in part based on the fact that at least one bandwidth is greater than or equal to the threshold bandwidth.
15. The method of claim 1, further comprising: The at least one bandwidth associated with the second cell is identified at least in part based on an indication of the at least one bandwidth included in the downlink transmission.
16. The method of claim 1, wherein the procedure includes a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof.
17. The method of claim 1, wherein the first cell is associated with a first radio access technology, and the second cell is associated with a second radio access technology different from the first radio access technology.
18. The method of claim 17, wherein the first radio access technology includes Long Term Evolution (LTE) radio access technology, fourth generation radio access technology, or both, and wherein the second radio access technology includes New Radio Access Technology (NRAT), fifth generation radio access technology, or both.
19. The method of claim 1, wherein the first cell and the second cell are associated with a shared radio access technology.
20. The method of claim 19, wherein the shared radio access technology includes new radio access technology, fifth-generation radio access technology, or both.
21. A method for conducting wireless communication at a user equipment (UE), comprising: The triggering condition associated with one or more operating parameters at the UE is identified at least in part based on the UE’s power level being less than or equal to a threshold power level, the throughput at the UE being less than or equal to a threshold throughput, or both. At least one bandwidth associated with at least one channel of the second cell is identified at least in part based on the satisfaction of the triggering condition, the at least one bandwidth being at least in part based on a previous radio connection between the second cell and the UE, a previous radio connection between the second cell and the additional UE, or both. The at least one bandwidth associated with the at least one channel of the second cell is compared with a threshold bandwidth; One or more parameters for performing one or more actions associated with the second cell may be selectively adjusted, at least in part, based on the comparison. as well as At least one action associated with the procedure is performed based at least in part on the aforementioned adjustment.
22. The method of claim 21, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure comprises: The procedure associated with the channel supported by the second cell is suppressed at least in part based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
23. The method of claim 21, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein performing the at least one action associated with the procedure comprises: The procedure associated with the channel supported by the second cell is completed at least in part based on the fact that at least one bandwidth associated with the channel is less than or equal to the threshold bandwidth.
24. The method of claim 21, wherein identifying the at least one bandwidth associated with the second cell comprises: The at least one bandwidth associated with the second cell is determined at least in part based on the previous radio connection between the second cell and the UE; as well as The at least one bandwidth is stored in memory.
25. The method of claim 21, further comprising: Transmit an uplink transmission indicating that the triggering conditions are met to the first cell; as well as At least in part, downlink transmissions are received from the first cell based on the transmission of the uplink transmissions, the downlink transmissions including additional information for performing the at least one action associated with the procedure.
26. The method of claim 21, wherein selectively adjusting the one or more parameters comprises: Selectively increase the power threshold, the quality threshold, or both of the reference signal received.
27. The method of claim 26, further comprising: Receive one or more reference signals from the second cell, the one or more reference signals being associated with one or more channels supported by the second cell; Perform a set of measurements on the one or more reference signals received from the second cell; as well as Determine that a measurement associated with the one or more channels satisfies the reference signal received power threshold, the reference signal received quality threshold, or both, wherein performing the at least one action is based at least in part on determining that the measurement associated with the one or more channels satisfies the reference signal received power threshold, the reference signal received quality threshold, or both.
28. The method of claim 27, wherein the measurement satisfies the reference signal received power threshold if the measurement associated with the one or more channels is greater than or equal to the reference signal received power threshold, and wherein the measurement satisfies the reference signal received quality threshold if the measurement associated with the one or more channels is greater than or equal to the reference signal received quality threshold.
29. An apparatus for conducting wireless communication at a user equipment (UE), comprising: processor; Memory coupled to the processor; as well as Instructions stored in the memory and executable by the processor to cause the device to perform the following operations: Receive downlink transmissions from a first cell, the downlink transmissions including information for performing one or more actions associated with a second cell; The triggering condition associated with one or more operating parameters at the UE is identified at least in part based on the UE’s power level being less than or equal to a threshold power level, the throughput at the UE being less than or equal to a threshold throughput, or both. At least one bandwidth associated with at least one channel of the second cell is identified at least in part based on the satisfaction of the triggering condition, the at least one bandwidth being at least in part based on a previous radio connection between the second cell and the UE, a previous radio connection between the second cell and an additional UE, or both. The at least one bandwidth associated with the at least one channel of the second cell is compared with a threshold bandwidth; as well as At least one action associated with the procedure is performed based at least in part on the comparison.
30. The apparatus of claim 29, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action associated with the procedure can be further executed by the processor to cause the apparatus to: The procedure associated with the channel supported by the second cell is suppressed at least in part based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
31. The apparatus of claim 29, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action associated with the procedure can be further executed by the processor to cause the apparatus to: The procedure associated with the channel supported by the second cell is completed at least in part based on the fact that at least one bandwidth associated with the channel is less than or equal to the threshold bandwidth.
32. The apparatus of claim 29, wherein an instruction executable by the processor to cause the apparatus to identify the at least one bandwidth associated with the second cellular cell can be further executed by the processor to cause the apparatus to: The at least one bandwidth associated with the second cell is determined at least in part based on the previous radio connection between the second cell and the UE, wherein the downlink transmission is received after communication with the second cell; and The at least one bandwidth is stored in memory.
33. The apparatus of claim 29, wherein an instruction executable by the processor to cause the apparatus to identify the at least one bandwidth associated with the second cellular cell can be further executed by the processor to cause the apparatus to: A request to transmit information associated with at least one bandwidth of the second cell to the first cell, the second cell, the second UE, or any combination thereof, based at least in part on the fulfillment of the triggering condition; and In response to the request, an indication of at least one bandwidth associated with the second cell is received, wherein the identification of the at least one bandwidth is based at least in part on the indication.
34. The apparatus of claim 29, wherein an instruction executable by the processor to cause the apparatus to identify that the trigger condition has been met can be further executed by the processor to cause the apparatus to identify that the UE is in an idle operation mode or a connected operation mode.
35. The apparatus of claim 29, wherein the instructions are further executable by the processor to cause the apparatus to: Transmit an uplink transmission indicating that the triggering condition is met to the first cell; and The second downlink transmission is received from the first cell at least in part based on the transmission of the uplink transmission, the second downlink transmission including information for performing the at least one action associated with the procedure.
36. The apparatus of claim 29, wherein the downlink transmission includes an instruction to cause the UE to perform a measurement on one or more reference signals received from the second cell, wherein an instruction executable by the processor to cause the apparatus to perform the at least one action can be further executed by the processor to cause the apparatus to: The one or more reference signals are received from the second cell, the one or more reference signals being associated with a set of channels supported by the second cell; Perform a set of measurements on the one or more reference signals received from the second cell; as well as Measurement reports are transmitted to the first cell at least in part based on the execution of the set of measurements, wherein the measurement reports omit measurements associated with the one or more channels based at least in part on the fact that at least one bandwidth associated with one or more channels in the channel set is greater than or equal to the threshold bandwidth.
37. The apparatus of claim 29, wherein the downlink transmission includes an instruction to cause the UE to perform a measurement on one or more reference signals received from the second cell, wherein an instruction executable by the processor to cause the apparatus to perform the at least one action can be further executed by the processor to cause the apparatus to: Receive a reference signal associated with a channel supported by the second cell from the second cell, wherein at least one bandwidth is associated with the channel; and Measurements of the received reference signal are suppressed, at least in part, based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
38. The apparatus of claim 29, wherein the downlink transmission includes an instruction to establish a radio connection between the UE and the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action can be further executed by the processor to cause the apparatus to: Uplink transmissions associated with radio link failures at the UE are transmitted to the first cell at least in part based on the at least one bandwidth being greater than or equal to the threshold bandwidth.
39. The apparatus of claim 29, wherein the downlink transmission includes an instruction to cause the UE to perform a handover procedure from the first cell to the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action can be further executed by the processor to cause the apparatus to: Receive one or more reference signals from the second cell, the one or more reference signals being associated with a set of channels supported by the second cell; Perform a set of measurements on the one or more reference signals received from the second cell; as well as Measurement reports are transmitted to the first cell at least in part based on the execution of the set of measurements, wherein the measurement reports omit measurements associated with the one or more channels based at least in part on the fact that at least one bandwidth associated with one or more channels in the channel set is greater than or equal to the threshold bandwidth.
40. The apparatus of claim 29, wherein the downlink transmission includes an instruction to cause the UE to perform a handover procedure from the first cell to the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action can be further executed by the processor to cause the apparatus to: Receive a reference signal associated with a channel supported by the second cell from the second cell; and Measurements of the received reference signal are suppressed, at least in part, based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
41. The apparatus of claim 29, wherein the downlink transmission includes an instruction to cause the UE to perform a handover procedure from the first cell to the second cell, wherein an instruction executable by the processor to cause the apparatus to perform the at least one action can be further executed by the processor to cause the apparatus to: Uplink transmissions associated with radio link failures at the UE are transmitted to the first cell at least in part based on the at least one bandwidth being greater than or equal to the threshold bandwidth.
42. The apparatus of claim 29, wherein the downlink transmission includes an instruction causing the UE to execute a release procedure with cell redirection from the first cell to the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action can be further executed by the processor to cause the apparatus to: The idle operation mode is entered at least in part based on the fact that at least one bandwidth is greater than or equal to the threshold bandwidth.
43. The apparatus of claim 29, wherein the instructions are further executable by the processor to cause the apparatus to: The at least one bandwidth associated with the second cell is identified at least in part based on an indication of the at least one bandwidth included in the downlink transmission.
44. The apparatus of claim 29, wherein the procedure includes a cell handover procedure, a cell addition procedure, a cell change procedure, a cell redirection procedure, or any combination thereof.
45. The apparatus of claim 29, wherein the first cell is associated with a first radio access technology, and the second cell is associated with a second radio access technology different from the first radio access technology.
46. The apparatus of claim 45, wherein the first radio access technology includes Long Term Evolution (LTE) radio access technology, fourth generation radio access technology, or both, and wherein the second radio access technology includes New Radio Access Technology (NRAT), fifth generation radio access technology, or both.
47. The apparatus of claim 29, wherein the first cell and the second cell are associated with a shared radio access technology.
48. The apparatus of claim 47, wherein the shared radio access technology includes new radio access technology, fifth-generation radio access technology, or both.
49. An apparatus for conducting wireless communication at a user equipment (UE), comprising: processor; Memory coupled to the processor; as well as Instructions stored in the memory and executable by the processor to cause the device to perform the following operations: The triggering condition associated with one or more operating parameters at the UE is identified at least in part based on the UE’s power level being less than or equal to a threshold power level, the throughput at the UE being less than or equal to a threshold throughput, or both. At least one bandwidth associated with at least one channel of the second cell is identified at least in part based on the satisfaction of the triggering condition, the at least one bandwidth being at least in part based on a previous radio connection between the second cell and the UE, a previous radio connection between the second cell and the additional UE, or both. The at least one bandwidth associated with the at least one channel of the second cell is compared with a threshold bandwidth; One or more parameters for performing one or more actions associated with the second cell may be selectively adjusted, at least in part, based on the comparison. as well as At least one action associated with the procedure is performed based at least in part on the aforementioned adjustment.
50. The apparatus of claim 49, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action associated with the procedure can be further executed by the processor to cause the apparatus to: The procedure associated with the channel supported by the second cell is suppressed at least in part based on the fact that at least one bandwidth associated with the channel is greater than or equal to the threshold bandwidth.
51. The apparatus of claim 49, wherein the at least one bandwidth is associated with a channel supported by the second cell, wherein instructions executable by the processor to cause the apparatus to perform the at least one action associated with the procedure can be further executed by the processor to cause the apparatus to: The procedure associated with the channel supported by the second cell is completed at least in part based on the fact that at least one bandwidth associated with the channel is less than or equal to the threshold bandwidth.
52. The apparatus of claim 49, wherein an instruction executable by the processor to cause the apparatus to identify the at least one bandwidth associated with the second cellular cell can be further executed by the processor to cause the apparatus to: The at least one bandwidth associated with the second cell is determined at least in part based on the previous radio connection between the second cell and the UE; and The at least one bandwidth is stored in memory.
53. The apparatus of claim 49, wherein the instructions are further executable by the processor to cause the apparatus to: Transmit an uplink transmission indicating that the triggering condition is met to the first cell; and At least in part, downlink transmissions are received from the first cell based on the transmission of the uplink transmissions, the downlink transmissions including additional information for performing the at least one action associated with the procedure.
54. The apparatus of claim 49, wherein instructions executable by the processor to cause the apparatus to selectively adjust the one or more parameters can be further executed by the processor to cause the apparatus to: Selectively increase the power threshold, the quality threshold, or both of the reference signal received.
55. The apparatus of claim 54, wherein the instructions are further executable by the processor to cause the apparatus to: Receive one or more reference signals from the second cell, the one or more reference signals being associated with one or more channels supported by the second cell; Perform a set of measurements on the one or more reference signals received from the second cell; as well as Determine that a measurement associated with the one or more channels satisfies the reference signal received power threshold, the reference signal received quality threshold, or both, wherein performing the at least one action is based at least in part on determining that the measurement associated with the one or more channels satisfies the reference signal received power threshold, the reference signal received quality threshold, or both.
56. The apparatus of claim 55, wherein the measurement satisfies the reference signal received power threshold if the measurement associated with the one or more channels is greater than or equal to the reference signal received power threshold, and wherein the measurement satisfies the reference signal received quality threshold if the measurement associated with the one or more channels is greater than or equal to the reference signal received quality threshold.
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