The disclosed embodiments relate generally to wireless communication, and, more particularly, to determining UE appropriate states by traffic type detection.
With the development and availability of 5G fast expanding worldwide, the demand of wireless data traffic is continually increasing. The requirement for high performance mobile devices as well as power efficiency becomes more and more important. In the existing solutions, the control and switch of UE's characteristics and features that impact on DL/UL performance and power consumption are independent of real-time traffic type and corresponding communication quality. This means that if a UE is undertaking a specific traffic type, the configuration of UE parameters and the switch of UE features may not be suitable for the balance of power consumption and DL/UL performance, which can result in extra power consumption or performance loss. For example, a UE that is undertaking a conversational traffic type (such as a voice call) may require a different configuration of UE parameters and a different switch of UE features than a UE that is undertaking a streaming traffic type (such as a video stream). If the UE parameters and UE features are not configured and switched appropriately for the traffic type, then the UE may consume more power or experience lower performance than it would if the parameters and features were configured and switched appropriately.
Improvements and enhancements are required to determine UE appropriate states based on traffic type detection.
Apparatus and methods are provided for determining UE appropriate states by traffic type detection. In one novel aspect, a UE traffic type is determined based on a plurality of UE metrics. One or more UE settings for transmission and/or reception are adjusted based on the determined UE traffic type. The UE traffic type determination procedure and UE configuration adjustment procedure are iterated to balance the UE performance and the power saving.
In one embodiment, the UE collects a plurality of UE metrics for a UE traffic profile matrix, wherein the UE traffic profile matrix is used to determine a plurality of UE traffic types based on the plurality of UE metrics. The UE determines a real-time UE traffic type based on the collected UE metrics using the UE traffic profile matrix and adjusts a set of UE configurations based on the UE traffic type when one or more predefined conditions are met. The UE monitors one or more communication quality metrics after adjusting the set of UE configurations. The UE iterates the determining traffic type procedure and the adjusting UE configurations procedure.
In one embodiment, the plurality of UE metrics includes one or more elements comprising an uplink downlink slot duty ratio, a buffer status report, a throughput, a block error rate, and a UE modulation and coding scheme. In another embodiment, the UE metrics includes elements from one or more sources comprising one or more lower layer reports, one or more high layer configuration, and application processor assisted information. In one embodiment, the set of UE configuration includes one or more TX settings comprising a maximum power reduction (MPR) value, a power amplifier (PA) voltage, a TX antenna number, Transmission antenna selection, Transmission path selection, and a switch setting of a crest factor reduction (CFR)/digital pre-distortion (DPD)/envelope tracking (ET) switch. In another embodiment, the set of UE configuration includes one or more RX settings comprising an RX antenna number, receiver mode, coverage enhancement (CE) mode, the number of multiple input multiple output (MIMO) search path, dynamic voltage and frequency scaling (DVFS), and reception antenna selection. In one embodiment, the RX configurations are adjusted based on both the UL and DL metrics and configurations. The TX configurations are adjusted based on both the UL and DL metrics and configurations. In one embodiment, the one or more predefined conditions include a power-saving trigger when one or more communication quality metrics being higher than one or more predefined corresponding power-saving thresholds, and a reverting trigger when one or more communication quality metrics being lower than one or more predefined corresponding reverting thresholds. The UE adjusts the set of UE configurations to preconfigured settings based on the traffic type when the power-saving trigger condition is met. In one embodiment, the power-saving trigger is the communication quality of the UE is higher than a predefined trigger threshold. In another embodiment, the UE recover to a previous setting after adjusting the configuration when the UE communication quality is lower than a predefined revert threshold.
This summary does not purport to define the invention. The invention is defined by the claims.
The accompanying drawings, where like numerals indicate like components, illustrate embodiments of the invention.
Reference will now be made in detail to some embodiments of the invention, examples of which are illustrated in the accompanying drawings.
Several aspects of telecommunication systems will now be presented with reference to various apparatuses and methods. These apparatuses and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (Collectively referred to as “elements”). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
In one novel aspect, a UE traffic type is determined based on a plurality of real-time UE metrics and configurations. For example, UE 101 collects multiple metrics, including active UL/DL slot duty ratio, buffer status report (BSR), and modulation and coding scheme (MCS). These metrics can be used to estimate the UE's undertaking scenarios. There are many mobile device components for uplink transmission and downlink reception. The parameters/configurations of these UE components can be adjusted. By adjusting the parameters/configurations of the UE components, it is possible to improve the performance of the UE in different undertaking scenarios. For example, in a high-traffic scenario, the UE can be configured to transmit at a higher power and use a higher-order modulation scheme. This will improve the data rate, but it will also consume more power. In a low-traffic scenario, the UE can be configured to transmit at a lower power and use a lower-order modulation scheme. This will save power, but it will also reduce the data rate. The UE can also adjust its configuration based on the quality of the signal. In a poor-signal scenario, the UE can be configured to use a more robust modulation scheme and a higher transmission power. This will improve the reliability of the data reception, but it will also consume more power. In a good-signal scenario, the UE can be configured to use a less robust modulation scheme and a lower transmission power. This will save power, but it may also reduce the data rate. When the UE traffic type, such as high loading/low loading, or traffic priority or performance quality are taken alone to adjust the TX/RX configuration, the performance and/or the efficiency of the UE is not optimized.
In another embodiment, the scenarios further include normal scenario, low power scenario, extreme low power scenario, enhanced performance scenario and specific scenarios indicated/defined/determined by thermal/In Device Coexistence (IDC)/(power density, PD) indicator. In the normal scenario, the communication performance/quality should meet adjacent channel leakage ratio (ACLR) and/or error vector magnitude (EVM) requirements. UE may transmit data as same as a legacy procedure without a trigger for low power or performance boost. In the low power scenario, the transmission power may reduce with a regular step in which the ACLR and EVM quality may suffer to a thin decrease and BLER should keep in the normal/appropriate range. In the extreme low power scenario, the transmission power may reduce with an extreme step in which BLER may suffer to a certain extent descending and users have a worse experience. In the enhanced performance scenario, better performance requirement should be guaranteed by boosting power.
In one novel aspect, a new UE traffic type is determined. The UE traffic type considers a holistic view of a plurality of UE metrics and the real-time UE configurations. In one embodiment, the UE traffic profile matrix is used to determine the real time UE traffic type. The TX/RX parameters are adjusted based on the real-time determined UE traffic type. The procedure is iterated by monitoring the UE performance after the adjustment.
The UE also includes a set of control modules that carry out functional tasks. These control modules can be implemented by circuits, software, firmware, or a combination of them. In one embodiment, control modules 191-195 are invoked by modem 190 (as shown). In another embodiment, some control modules of 191-195 are invoked by AP 180 (not shown). The control modules 191-195 and the functions can be performed by modem 190, or by AP 180, or by both modem 190 and AP 180. A metrics module 191 collects a plurality of UE metrics for a UE traffic profile matrix, wherein the UE traffic profile matrix determines a plurality of UE traffic types based on the plurality of UE metrics. A traffic type module 192 determines a UE traffic type based on the collected UE metrics using the UE traffic profile matrix. An adjustment module 193 adjusts a set of UE configurations based on the UE traffic type when one or more predefined conditions are met. A monitoring module 194 monitors one or more communication quality metrics after adjusting the set of UE configurations. A control module 195 iterates the determining traffic type procedure and the adjusting UE configurations procedure.
In one embodiment, the monitoring scenario procedure 221 and the metrics collecting procedure 222 perform iteration 225 and 226, respectively. The UE monitors one or more plurality of communication quality metrics and UE configurations after adjusting one or more UE configurations to determine if the UE is in the appropriate state that balances the performance and the power consumption. In one embodiment, the one or more communication quality metrics include block error rate (BLER), signal-to-noise ratio (SNR), transmission power, adjacent channel leakage ratio (ACLR) and/or error vector magnitude (EVM). Iterations 225 and 226 also trigger new adjustment and/or reverting procedures.
In one embodiment, collecting performance information procedure 222 gets the inputs from low-layer reports 211. A coordination procedure 228 receives inputs from monitoring scenario procedure 221 and collecting performance information procedure 222. The UE real-time traffic type takes into account traditional traffic type information, such as heavy loading/light loading, voice-like traffic type, traffic priority, and throughput. In addition, the UE real-time traffic type is further based on the UE real-time metrics collected through sources 211, 212 and 213. Coordination procedure 228 adjust one or more UE configurations and sends suggestions (227) to TX/RX parameter and features process 232. TX/RX parameter and features process 232, at step 235, configures one or more UE components 231 based on the adjusted UE parameters and/or features. The one or more UE components 231 indicates to TX parameter and features process 232, at step 236, of component limitation such that the one or more adjustments are within the range. Feedback 237 is sent to coordination procedure 228 as an input to determine the adjustment for one or more UE configurations. In one embodiment, the one or more UE components 231 include RF transceiver, Digital frond end (DFE), antenna and so on.
Although the present invention has been described in connection with certain specific embodiments for instructional purposes, the present invention is not limited thereto. Accordingly, various modifications, adaptations, and combinations of various features of the described embodiments can be practiced without departing from the scope of the invention as set forth in the claims.
Number | Date | Country | Kind |
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202310551310.1 | May 2023 | CN | national |
This application claims priority under 35 U.S.C. § 119 from Chinese Application Number 202310551310.1, titled “METHODS FOR DETERMINING AR FILTER COEFFICIENT AND TIMES OF SYNCHRONIZATION,” filed on May 16, 2023. This application claims priority under 35 U.S.C. § 119 from U.S. Provisional Application No. 63/353,080 entitled “METHODS FOR DETERMINING UE APPROPRIATE STATES BY TRAFFIC TYPE DETECTION,” filed on Jun. 17, 2022. The disclosure of each of the foregoing documents is incorporated herein by reference.
Number | Date | Country | |
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63353080 | Jun 2022 | US |