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US-20260128783-A1 - CONTROL METHODS FOR RECEIVER ANTENNA SELECTION AND INTERFERENCE CANCELATION AND APPARATUS THEREOF

US20260128783A1US 20260128783 A1US20260128783 A1US 20260128783A1US-20260128783-A1

Abstract

A control method for receiver antenna selection (RAS) and interference cancelation (IC) is provided. The control method for RAS and IC may be applied to an apparatus. The control method for RAS and IC may include the following steps. The apparatus may determine at least one scenario associated with the operating environment of the apparatus. Then, the apparatus may determine a plurality of parameters that correspond to the at least one scenario. Then, based on these parameters, the apparatus may determine how many antennas are needed and determine whether to enable an IC module.

Inventors

  • Cheng-Yi Hsu
  • Kai-Hsiang HO
  • Yuan Yuan
  • Chih-Chieh LAI

Assignees

  • MEDIATEK INC.

Dates

Publication Date
20260507
Application Date
20241105

Claims (10)

  1. 1 . A control method for receiver antenna selection (RAS) and interference cancelation (IC), comprising: determining, by a processor of an apparatus, at least one scenario associated with an operating environment of the apparatus; and determining, by the processor, a plurality of parameters corresponding to the at least one scenario; and according to the plurality of parameters, determining, by the processor, a number of antennas which need to be used and determining, by the processor, whether to enable an IC module.
  2. 2 . The control method for the RAS and IC of claim 1 , wherein the at least one scenario comprises a transmission mode, a cell identification (ID) of an interference cell, a loading of the interference cell, and a channel type.
  3. 3 . The control method for the RAS and IC of claim 1 , wherein the plurality of parameters comprise an interference-to-noise ratio (INR), a signal-to-interference-plus-noise ratio (SINR), a block error rate (BLER), a throughput (Tput) degradation ratio and a downlink control information (DCI) missing indicator.
  4. 4 . The control method for the RAS and IC of claim 3 , further comprising: enabling, by the processor, the IC module in an event that the INR exceeds a threshold; and disabling, by the processor, the IC module in an event that the INR does not exceed the threshold.
  5. 5 . The control method for the RAS and IC of claim 3 , further comprising: determining, by the processor, to use a first number of antennas in an event that the SINR exceeds a threshold; and determining, by the processor, to use a second number of antennas in an event that the SINR does not exceed the threshold, wherein the second number is higher than the first number, and wherein the first number is 1 or higher than 1, and the second number is higher than 1.
  6. 6 . An apparatus, comprising: a transceiver, comprising a plurality of antennas and configured to perform wireless transmission and reception to and from a network node; and a processor, coupled to the transceiver, and performing operations comprising: determining at least one scenario associated with an operating environment of the apparatus; and determining a plurality of parameters that correspond to the at least one scenario; and according to the plurality of parameters, determining a number of antennas which need to be used and determining whether to enable an IC module.
  7. 7 . The apparatus of claim 6 , wherein the at least one scenario comprises a transmission mode, a cell identification (ID) of an interference cell, a loading of the interference cell, and a channel type.
  8. 8 . The apparatus of claim 6 , wherein the plurality of parameters comprise an interference-to-noise ratio (INR), a signal-to-interference-plus-noise ratio (SINR), a block error rate (BLER), a throughput (Tput) degradation ratio and a downlink control information (DCI) missing indicator.
  9. 9 . The apparatus of claim 8 , wherein the processor performs operations comprising: enabling the IC module in an event that the INR exceeds a threshold; and disabling the IC module in an event that the INR does not exceed the threshold.
  10. 10 . The apparatus of claim 8 , wherein the processor performs operations comprising: determining to use a first number of antennas in an event that the SINR exceeds a threshold; and determining to use a second number of antennas in an event that the SINR does not exceed the threshold, wherein the second number is higher than the first number, and wherein the first number is 1 or higher than 1, and the second number is higher than 1.

Description

BACKGROUND OF THE INVENTION Field of the Invention The invention generally relates to communication technology, and more particularly, to operations for controlling a receiver (receiving) antenna selection (RAS) and interference cancelation (IC). Description of the Related Art Unless otherwise indicated herein, approaches described in this section are not prior art to the claims listed below and are not admitted as prior art by inclusion in this section. In conventional communication technologies, a UE (user equipment) may use the receiver antenna selection (RAS) to control the selection of the receiver antenna number. That is, the RAS may be used to determine how many antennas are needed. In addition, in conventional communication technologies, the UE may use interference cancelation (IC) to cancel the interference from other cells. However, when the throughput benefit of enabling the IC or using more antennas is lower than the power consumption of the UE, the UE may not immediately adjust the RAS and IC operations at the same time to achieve a better balance between the throughput benefit and power consumption. Therefore, how to achieve a better balance between the throughput benefit and power consumption by controlling the RAS and IC is a topic that is worthy of discussion. BRIEF SUMMARY OF THE INVENTION The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce concepts, highlights, benefits and advantages of the novel and non-obvious techniques described herein. Select implementations are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter. One objective of the present disclosure is to propose schemes, concepts, designs, systems, methods and apparatus pertaining to control methods for receiver antenna selection (RAS) and interference cancelation (IC) with respect to user equipment (UE). It is believed that the above-described issue would be avoided or otherwise alleviated by implementing one or more of the proposed schemes described herein. An embodiment of the invention provides a control method for receiver antenna selection (RAS) and interference cancelation (IC). The control method for RAS and IC may be applied to an apparatus. The control method for RAS and IC may include the following steps. The apparatus may determine at least one scenario associated with the operating environment of the apparatus. Then, the apparatus may determine a plurality of parameters that correspond to the at least one scenario. Then, based on these parameters, the apparatus may determine how many antennas are needed and determine whether to enable an IC module. In some embodiments, the scenarios may be associated with the transmission mode, the cell identification (ID) of an interference cell, the loading of the interference cell, and the channel type. In some embodiments, the parameters comprise the interference-to-noise ratio (INR), the signal-to-interference-plus-noise ratio (SINR), the block error rate (BLER), the throughput (Tput) degradation ratio and the downlink control information (DCI) missing indicator. In some embodiments, the apparatus may enable the IC module in an event that the INR exceeds the threshold. In addition, the apparatus may disable the IC module in an event that the INR does not exceed the threshold. In some embodiments, the apparatus may determine to use the first number of antennas in an event that the SINR exceeds the threshold. In addition, the apparatus may determine to use the second number of antennas in an event that the SINR does not exceed the threshold. The second number may be higher than the first number. The first number may be 1 or higher than 1, and the second number may be higher than 1. An embodiment of the invention provides an apparatus. The apparatus may include a transceiver and a processor. The transceiver may comprise a plurality of antennas. The transceiver may be configured to perform wireless transmission to and reception from a network node. The processor may be coupled to the transceiver. The processor may perform the following operations. The operations may comprise determining at least one scenario associated with the operating environment of the apparatus. The operations may comprise determining a plurality of parameters that correspond to the at least one scenario. The operations may comprise determining how many antennas need to be used and whether to enable the IC module, based on the aforementioned parameters. Other aspects and features of the invention will become apparent to those with ordinary skill in the art upon review of the following descriptions of specific embodiments of the control method for RAS and IC, and the apparatus. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be