CN118251946A - Communication device and method for configuring transmitter bandwidth and receiver bandwidth - Google Patents

Abstract

The application provides a method for configuring the transmitter Tx bandwidth BW and the receiver Rx bandwidth of a communication device. Comprising the following steps: transmitting the first capability of Tx and the second capability of Rx to the network device; receiving at least one configuration associated with the first capability and the second capability from the network device; configuring Tx BW and Rx BW according to at least one configuration; wherein Tx BW is within Tx channel BW CBW and Rx BW is within Rx CBW.

Description

Communication device and method for configuring transmitter bandwidth and receiver bandwidth

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No. 63/279,206, filed on November 15, 2021. In addition, this application claims the benefit of U.S. Provisional Application No. 63/336,386, filed on April 29, 2022. The contents of these applications are hereby incorporated by reference.

Technical Field

The present invention relates to a communication device and method used in a wireless communication system, and more particularly, to a communication device and method for configuring a transmitter Tx bandwidth BW and a receiver RxBW.

Background technique

High Power User Equipment (HPUE) is a special user equipment (UE) category for Long Term Evolution (LTE) networks and fifth generation 5G New Radio (NR) networks. In the 3rd Generation Partnership Project (3GPP) Rel-11 standard and 3GPP Rel-14 standard, HPUE for bands 14 and 41 for time division duplex (TDD) TDD is proposed. In the 3GPP Rel-17 standard, HPUE for NR bands n1 and n3 for frequency division duplex (FDD) FDD is proposed.

As market demand increases, operators intend to enhance the uplink UL throughput of HPUE by using wide channel bandwidth CBW. For example, n3, n5 and n28 bands for FDD. However, HPUE suffers from the problem of receiver Rx sensitivity degradation due to the small gap between transmitter Tx bandwidth BW and receiver RxBW.

Summary of the invention

The object of the present invention is to provide a communication device to solve the above problems.

One embodiment of the present invention provides a method for configuring a transmitter Tx bandwidth BW and a receiver RxBW of a communication device, comprising: transmitting a first capability of Tx and a second capability of Rx to a network device; receiving at least one configuration related to the first capability and the second capability from the network device; and configuring Tx BW and Rx BW according to at least one configuration; wherein the Tx BW is within the Tx channel bandwidth CBW, and the Rx BW is within the Rx CBW.

An embodiment of the present invention provides a communication device, including a wireless transceiver and a processing circuit. The wireless transceiver is configured to transmit or receive wireless signals. The processing circuit is connected to the wireless transceiver and configured to perform operations, including: transmitting a first capability of Tx and a second capability of Rx to a network device; receiving at least one configuration related to the first capability and the second capability from the network device; and configuring the Tx BW and Rx BW of the communication device according to the at least one configuration; wherein the Tx BW is within the Tx channel bandwidth and the Rx BW is within the Rx CBW.

These and other objects of the present invention will no doubt become apparent to those of ordinary skill after reading the following detailed description of the preferred embodiment depicted in the various figures and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exemplary block diagram of a communication device according to an embodiment of the present invention.

FIG. 2 is an exemplary block diagram of a modem according to one embodiment of the present invention.

FIG. 3 is a schematic diagram of configuring Tx BW and Rx BW according to an example of the present invention.

FIG. 4 is a process flow diagram according to one embodiment of the present invention.

FIG. 5 is a diagram illustrating a full-duplex FD operation according to an example configuration of Tx BW and Rx BW of the present invention.

FIG. 6 is a diagram illustrating a full-duplex FD operation according to an example configuration of Tx BW and Rx BW of the present invention.

FIG. 7 is a diagram illustrating a half-duplex HD operation of configuring Tx BW and Rx BW according to an example of the present invention.

FIG. 8 is a diagram illustrating variant full-duplex and half-duplex operations of configuring Tx BW and Rx BW according to an example of the present invention.

FIG. 9 is a diagram illustrating a variant full-duplex operation of configuring Tx BW and Rx BW according to an example of the present invention.

FIG. 10 is a diagram illustrating variant full-duplex and half-duplex operations of configuring Tx BW and Rx BW according to an example of the present invention.

FIG. 11 is a diagram showing configuration of Tx BW and Rx BW according to an example of the present invention.

FIG. 12 is a diagram showing configuration of Tx BW and Rx BW according to an example of the present invention.

Detailed ways

Certain terms are used in the following description and claims that refer to specific components. As one skilled in the art will appreciate, electronic device manufacturers may refer to a component by different names. This document does not intend to distinguish between components that differ in name but function identically. In the following description and claims, the terms "include" and "comprising" are used in an open-ended manner and thus should be interpreted to mean "including but not limited to...". Additionally, the term "connected" is intended to mean either an indirect or direct electrical connection. Thus, if one device is connected to another device, that connection may be through a direct electrical connection, or through an indirect electrical connection through other devices and connections.

FIG1 is an exemplary block diagram of a communication device 100 according to an embodiment of the present invention. The communication device 100 may be a portable electronic device, such as a mobile station MS, which may also be referred to as a user equipment UE. The communication device 100 may include a wireless transceiver 110, a processing device 120, an application processing device 130, a user identity card 140, a storage device 150, and at least one antenna 160. The wireless transceiver 110 is configured to transmit and/or receive wireless signals to a network device through the antenna 160, so as to communicate with the network device through a communication link established between the communication device 100 and the network device. The wireless transceiver 110 may include a receiver Rx112 configured to receive wireless signals and a transmitter Tx111 configured to transmit wireless signals. The wireless transceiver 110 may also be configured to perform radio frequency RF signal processing. For example, Rx 112 may convert the received signal into an intermediate frequency IF or baseband signal for processing, or Tx 111 may receive the IF or baseband signal from the processing device 120 and convert the received signal into a wireless signal to be transmitted to a network device in a wireless network or access network, for example, a terrestrial network TN, a non-terrestrial network NTN, a wireless local area network WLAN, a personal area network PAN or a wireless local access network. According to one embodiment of the present invention, the network device may be a cell, a Node-BNB, an evolved Node-BeNB, a g Node-BgNB, a base station, a mobility management entity MME, an access and mobility management function AMF device, etc. on the network side, and communicate with the communication device 100 through a wireless signal via a communication link.

The Tx 111 and Rx 112 of the wireless transceiver 110 may include multiple hardware devices to perform RF conversion and RF signal processing. For example, the Tx 111 and/or Rx 112 may include a power amplifier for amplifying the RF signal, a filter for filtering the unwanted part of the RF signal, and/or a mixer for performing RF conversion. According to one embodiment of the present invention, the radio frequency may be a frequency of any specific frequency band of a long-term evolution LTE system, a frequency of any specific frequency band of a 5G next-generation NR system, a frequency of any specific frequency band of a WiFi system, or a frequency of any specific frequency band of a Bluetooth BT system, etc.

The processing device 120 may be configured to process corresponding communication protocol operations and process signals received from or to be transmitted to the wireless transceiver 110. The application processing device 130 may be configured to run the operating system of the communication device 100 and to run the application programs installed in the communication device 100. The processing device 120 and the application processing device 130 may be implemented by hardware circuits, software, firmware, i.e., a combination of computer instructions and data in read-only software on a hardware device, an electronic system, or a combination thereof. In an embodiment of the present invention, the processing device 120 and the application processing device 130 may be designed to be connected between independent chips with some buses or hardware interfaces, or may be integrated into a combined chip, i.e., a system-on-chip SoC, and the present invention should not be limited thereto.

The user identity card 140 can be a user identity module SIM, a universal mobile telecommunications system UMTS SIM USIM, a removable user identity module R-UIM or a code division multiple access CDMA SIM CSIM card, etc., and generally contains user account information, an international mobile user identity IMSI and a set of SIM application toolkit SAT commands, and can provide storage space for phonebook contacts. The storage device 150 can be connected to the processing device 120 and the application processing device 130, and can store system data or user data.

It should be noted that, in order to illustrate the concept of the present invention, FIG. 1 presents a simplified block diagram, in which only elements related to the present invention are shown. For example, in some embodiments of the present invention, the communication device 100 may further include some peripheral devices not shown in FIG. 1. In another example, in some embodiments of the present invention, the communication device 100 may further include a central controller connected to the processing device 120 and the application processing device 130. Therefore, the present invention should not be limited to the content shown in FIG. 1.

In certain embodiments of the present invention, the communication device 100 is capable of supporting communications of multiple radio access technologies RATs through a single card structure as shown in FIG1. It should be noted that although FIG1 shows a single card application, the present invention should not be limited to this. For example, in certain embodiments of the present invention, the communication device 100 may include multiple user identity cards to support multi-RAT communications, whether in single standby or multi-standby mode. In multi-RAT communication applications, the modem, wireless transceiver and/or antenna module can be shared by the user identity card and can have the ability to handle operations of different RATs and process corresponding RF, IF or baseband signals according to the corresponding communication protocol.

In addition, people familiar with the technology can still make various changes and modifications based on the above description to derive a communication device including multiple wireless transceivers and/or multiple antenna modules to support multi-RAT wireless communication without departing from the scope and spirit of the present invention. Therefore, in some embodiments of the present invention, the communication device 100 can be designed to support multi-card applications by making some changes and modifications, whether in single standby or multi-standby mode.

It should be further noted that the user identity card 140 may be a dedicated hardware card as described above, or in certain embodiments of the present invention, may be a virtual card, such as a personal identifier, number, address, etc. burned into the internal storage device of the corresponding modem, capable of identifying the communication device 100. Therefore, the present invention should not be limited to what is shown in FIG.

It should be further noted that in some embodiments of the present invention, the communication device 100 may also support multiple IMSIs.

FIG. 2 is an exemplary block diagram of a processing device 220 according to an embodiment of the present invention. The processing device 220 may be the processing device 120 shown in FIG. 1 , and may include at least one baseband processing device 221, a processing circuit 222, an internal storage device 223, and a network card 224. The baseband processing device 221, the processing circuit 222, the internal storage device 223, and the network card 224 may be implemented by hardware circuits, software, firmware, electronic systems, or a combination thereof. The baseband processing device 221 may receive an IF or baseband signal from the wireless transceiver 110 and perform IF or baseband signal processing. For example, the baseband processing device 221 may convert the IF or baseband signal into a plurality of digital signals and process the digital signals, and vice versa. The baseband processing device 221 may include a plurality of hardware circuits to perform signal processing, such as an analog-to-digital converter for ADC conversion, a digital-to-analog converter for DAC conversion, an amplifier for gain adjustment, a modulator for signal modulation, a demodulator for signal demodulation, an encoder for signal encoding, a decoder for signal decoding, and the like.

According to one embodiment of the present invention, the baseband processing device 221 may be designed to have the ability to process baseband signal processing operations of different RATs, and process corresponding IF or baseband signals according to corresponding communication protocols to support multi-RAT wireless communications. According to another embodiment of the present invention, the baseband processing device 221 may include multiple subunits, each of which is designed to have the ability to process baseband signal processing operations of one or more specific RATs, and process corresponding IF or baseband signals according to corresponding communication protocols to support multi-RAT wireless communications. Therefore, the present invention should not be limited to any specific implementation.

The processing circuit 222 may control the operation of the processing device 220. According to one embodiment of the present invention, the processing circuit 222 may be a processor arranged to execute program code of the processing device 220. For example, the processing circuit 222 may maintain and execute individual tasks, threads and/or protocol stacks of different software modules. A protocol stack may be implemented to separately process the wireless activities of a RAT. However, multiple protocol stacks may be implemented to simultaneously process the wireless activities of a RAT, or only one protocol stack may be implemented to simultaneously process the wireless activities of multiple RATs, and the present invention should not be limited thereto.

In some embodiments of the present invention, the processing circuit 222 may be pure hardware, dedicated to processing the proposed method of processing interference on non-terrestrial networks. Such alternative designs also fall within the scope of the present invention.

Processing circuit 222 can also read data from a user identity card connected to the processing device, such as user identity card 140 in Figure 1, and write data to the user identity card. Internal storage device 223 can store system data and user data for processing device 220. Processing circuit 222 can also access internal storage device 223.

The network card 224 provides Internet access services for the communication device 100. It should be noted that although the network card 224 shown in FIG. 2 is configured inside the processing device 220, the present invention should not be limited to this. In some embodiments of the present invention, the communication device 100 may also include a network card configured outside the processing device, or the communication device 100 may also be connected to an external network card to provide Internet access services. In some embodiments of the present invention, the network card 224 may be a virtual network card, rather than a physical card, created by the operating system of the communication device 100. Therefore, the present invention should not be limited to any specific implementation method.

It should be noted that, in order to clarify the concept of the present invention, FIG2 presents a simplified block diagram, in which only elements related to the present invention are shown. Therefore, the present invention should not be limited to the content shown in FIG2.

It should be further noted that in some embodiments of the present invention, the processing device 220 may also include multiple processing circuits and/or multiple baseband processing devices. For example, the processing device 220 may include multiple processing circuits and/or multiple baseband processing devices to support multi-RAT operations. Therefore, the present invention should not be limited to what is shown in FIG. 2.

It should be further noted that in some embodiments of the present invention, the baseband processing device 221 and the processing circuit 222 may be integrated into one processing unit, and the processing device may include one or more such processing units to support multi-RAT operation. Therefore, the present invention should not be limited to what is shown in FIG. 2.

According to one embodiment of the present invention, the processing circuit 222 and the application processing device 130 may include multiple logics designed to process one or more functions. The logic may be configured to execute the program code of one or more software and/or firmware modules to perform corresponding operations. When performing corresponding operations when executing corresponding programs, the logic may be regarded as a dedicated hardware device or circuit, such as a dedicated processor subunit. Typically, the processing circuit 222 may be configured to perform operations at a relatively low protocol layer, while the application processing device 130 may be configured to perform operations at a relatively high protocol layer. Therefore, in certain embodiments of the present invention, the application processing device 130 may be regarded as an upper entity or upper processing circuit relative to the processing circuit 222, and the processing circuit 222 may be regarded as a lower entity or lower processing circuit relative to the application processing device 130.

FIG3 is a schematic diagram of configuring Tx BW and Rx BW according to an example of the present invention. The x-axis is the frequency FREQ domain, and the unit is megahertz MHz. The y-axis is the power domain, and the unit is dBm/MHz. The communication device 100 in FIG3 adopts a conventional transceiver method. Tx111 transmits data at Tx CBW, and Rx 112 receives data at Rx CBW. The center frequencies of Tx CBW and Rx CBW are Tx local oscillator LO frequency and Rx LO frequency, respectively. After the transmission resource of Tx 111 is mixed, for example, the adjacent channel leakage ratio ACLR is generated, for example, and is shown as a dot pattern. Part of the interference overlaps with the receiving resource, for example, and is shown as a right oblique line. That is, when Tx 111 and Rx 112 transmit data at the same time, Rx 112 will be interfered.

FIG4 is a flow chart of a process 40 for configuring a Tx BW of a transmitter, such as the transmitter 111 shown in FIG1, and a Rx BW of a receiver, such as the receiver 112 shown in FIG1, according to an embodiment of the present invention. As long as the result is substantially the same, the steps do not need to be performed in the exact order shown in FIG4. The process 40 includes the following steps:

Step S400: Start.

Step S402: Transmitting the first capability of the transmitter and the second capability of the receiver to the network device.

Step S404: Receive at least one configuration related to the first capability and the second capability from the network device.

Step S406: Configure Tx BW and Rx BW according to at least one configuration.

Step S408: End.

The processing circuit 222 is configured to perform the steps of process 40. According to process 40, the communication device 100 configures, for example, Tx BW and Rx BW according to at least one configuration received from the network device. In one embodiment of the present invention, at least one configuration is used to configure, for example, limit Tx BW or Tx channel BWCBW and the number of resource blocks RB to be transmitted to approach 0 decibel dBRx desensitization. In one embodiment of the present invention, at least one configuration is used to configure Tx BW and Rx BW, including at least a variant full-duplex FD operation and a variant half-duplex HD operation. Therefore, Tx BW and Rx BW are dynamically configured, and Rx desensitization may be improved. In one embodiment of the present invention, Tx BW is located in Tx CBW, and Rx BW is located in Rx CBW.

There are multiple ways to configure Tx BW and Rx BW according to at least one configuration. In one embodiment of the present invention, the communication device 100 reduces, for example, shrinks Tx BW, and configures Rx BW to be equal to Rx CBW. Tx BW is less than Tx CBW. For example, Tx BW is not greater than half of Tx CBW. For example, Tx BW is not greater than one quarter of Tx CBW. In one embodiment of the present invention, the communication device 100 configures Tx BW to be equal to Tx CBW during multiple first time durations, and configures Tx BW to be 0 during multiple second time durations. The communication device 100 configures Rx BW to be 0 during multiple first time durations, and configures Rx BW to be equal to Rx CBW during multiple second time durations. In one embodiment of the present invention, the communication device 100 configures Tx BW to be equal to Tx CBW during multiple first time durations, and reduces Tx BW during multiple second time durations. The communication device 100 configures RxBW to be 0 during a plurality of first time durations, and configures Rx BW to be equal to Rx CBW during a plurality of second time durations. In one embodiment of the present invention, the communication device 100 reduces Rx BW when Tx BW increases, and increases, for example, expands Rx BW when Tx BW decreases. The gap between Tx BW and Rx BW is greater than a threshold, and the threshold is a positive number. In one embodiment of the present invention, the communication device 100 configures Rx BW to be 0 when Tx BW is equal to Tx CBW. In one embodiment of the present invention, the communication device 100 configures Tx BW to be 0 during at least one specific time duration. In one embodiment of the present invention, the communication device 100 configures Tx BW to be equal to Tx CBW during a plurality of first time durations, and reduces Tx BW during a plurality of second time durations. The communication device 100 divides Rx BW into a plurality of sub-BWs during a plurality of first time durations, and configures Rx BW to be equal to Rx CBW during a plurality of second time durations. Rx 112 receives the same data in multiple sub-BWs, for example, Rx Maximum Ratio Combining (MRC).

In one embodiment of the present invention, the plurality of first time durations and the plurality of second time durations are staggered and do not overlap each other. In one embodiment of the present invention, the first center frequency of the Tx CBW is the Tx local oscillator LO frequency. In one embodiment of the present invention, the second center frequency of the Rx CBW is the Rx LO frequency. In one embodiment of the present invention, the communication device is a high power user equipment HPUE, for example, a power class 2 PC2UE.

FIG5 is a schematic diagram of configuring Tx BW and Rx BW using FD operation according to an example of the present invention. The x-axis is the time domain, and the unit is microsecond μs. The y-axis is the FREQ domain, and the unit is megahertz MHz. Tx CBW is the maximum value of Tx BW, and the center frequency of Tx CBW is the Tx LO frequency. Rx CBW is the maximum value of Rx BW, and the center frequency of Rx CBW is the Rx LO frequency. The transmission resources of Tx 111 are shown as left oblique lines, and the reception resources of Rx 112 are shown as right oblique lines. In FIG5, the communication device 100 reduces, for example, shrinks the Tx BW, and configures the Rx BW to be equal to the Rx CBW. That is, Tx 111 transmits data with the reduced, for example, shrunken Tx BW, and Rx 112 receives data with the Rx CBW.

FIG6 is a schematic diagram of configuring Tx BW and Rx BW using FD operation according to an example of the present invention. The x-axis, y-axis, Tx LO frequency, and Rx LO frequency can refer to FIG3 and are not described here for brevity. FIG6 can be applied to FIG5. Tx111 transmits data with a reduced, for example, reduced Tx BW, and Rx 112 receives data with Rx CBW. Multiple interferences, for example, adjacent channel leakage ratio ACLR, are generated after the transmission resources of Tx 111, for example, are mixed, and are shown as a left oblique line and Tx LO frequency, for example, are shown as a dot pattern. Part of the interference overlaps with the receiving resources of Rx 112, for example, and is shown as a right oblique line. Compared with FIG3, the area where the partial interference overlaps with Rx, i.e., Rx desensitization, in FIG6 is smaller than that in FIG3 because the gap between the reduced Tx BW and Rx BW or Rx CBW is widened. The present invention provides a transceiver method for reducing Rx desensitization.

FIG. 7 is a schematic diagram of configuring Tx BW and Rx BW using HD operation according to an example of the present invention. The x-axis, y-axis, Tx CBW, Rx CBW, Tx LO frequency, Rx LO frequency, transmission resources, and reception resources can refer to FIG. 5 and are not described here for brevity. FIG. 7 includes time durations T1-T10. Tx 111 transmits data at Tx CBW during time durations T1, T3, T5, T7, and T9, for example, configuring Tx BW equal to Tx CBW, and does not transmit data during time durations T2, T4, T6, T8, and T10, for example, configuring Tx BW to be 0. Rx 112 does not receive data during time durations T1, T3, T5, T7, and T9, for example, configuring Rx BW to be 0, and receives data at Rx CBW during time durations T2, T4, T6, T8, and T10, for example, configuring Rx BW equal to RxCBW. That is, when Tx 111 transmits data, Rx 112 is turned off, and when Rx 112 receives data, Tx 111 is turned off. Tx 111 and Rx 112 transmit and receive data in turn, avoiding Rx desensitization. It should be noted that the time durations T1, T3, T5, T7 and T9 may be multiple first time durations in the aforementioned embodiment, and the time durations T2, T4, T6, T8 and T10 may be multiple second time durations in the aforementioned embodiment.

FIG8 is a schematic diagram of configuring Tx BW and Rx BW using variant FD and HD operations according to an example of the present invention. The x-axis, y-axis, Tx CBW, Rx CBW, Tx LO frequency, Rx LO frequency, transmission resources, reception resources, and time durations T1-T10 can refer to FIG7 and are not described here for brevity. Tx 111 transmits data at Tx CBW during time durations T1, T3, T5, T7, and T9, and transmits data at a reduced Tx BW during time durations T2, T4, T6, T8, and T10, for example, reducing Tx BW. Rx 112 does not receive data during time durations T1, T3, T5, T7, and T9, and receives data at Rx CBW during time durations T2, T4, T6, T8, and T10. That is, when the Tx 111 transmits data at the Tx CBW, the Rx 112 is turned off, and when the Rx 112 receives data at the Rx CBW, the Tx 111 is turned on with a reduced Tx BW.

FIG9 is a schematic diagram of configuring Tx BW and Rx BW using variant FD operation according to an example of the present invention. The x-axis, y-axis, Tx CBW, Rx CBW, Tx LO frequency, Rx LO frequency, transmission resources, and reception resources can refer to FIG5 and are not described here for brevity. When Tx 111 increases Tx BW, Rx 112 decreases Rx BW, and increases Rx BW when Tx 111 decreases Tx BW to ensure that the gap between Tx BW and Rx BW is greater than the threshold. That is, Tx BW and Rx BW are dynamically configured, and Rx desensitization is improved.

FIG. 10 is a schematic diagram of configuring Tx BW and Rx BW using variant FD and HD operations according to an example of the present invention. The x-axis, y-axis, Tx CBW, Rx CBW, Tx LO frequency, Rx LO frequency, transmission resources, and reception resources can refer to FIG. 5 and are not described here for brevity. When Tx 111 increases Tx BW, Rx 112 decreases Rx BW, and increases Rx BW when Tx 111 decreases Tx BW to ensure that the gap between Tx BW and Rx BW is greater than a threshold. When Tx 111 transmits data at Tx CBW, Rx 112 does not receive data, for example, as shown in a dotted box. That is, when Tx 111 transmits data at the maximum Tx BW, Rx 112 is turned off.

FIG. 11 is a schematic diagram of configuring Tx BW and Rx BW according to an example of the present invention. The x-axis, y-axis, Tx CBW, RxCBW, Tx LO frequency, Rx LO frequency, transmission resources, and reception resources can refer to FIG. 5 and are not described here for brevity. FIG. 11 includes time durations T1-T12. When Tx 111 increases Tx BW, for example, during time durations T1, T3, T5, T7, and T11, Rx 112 decreases Rx BW, and when Tx 111 decreases Tx BW, for example, during time durations T2, T4, T6, T8, T10, and T12, Rx BW is increased. It should be noted that Tx 111 does not transmit data during a specific time duration, for example, during time duration T9, which is shown as a dotted box. That is, Tx is turned off during a specific time duration to mitigate specific absorption rate SAR.

FIG. 12 is a schematic diagram of configuring Tx BW and Rx BW according to an example of the present invention. The x-axis, y-axis, Tx CBW, RxCBW, Tx LO frequency, Rx LO frequency, transmission resources, reception resources, and time durations T1-T10 can refer to FIG. 7 and are not described here for brevity. Tx transmits data at Tx CBW during time durations T1, T3, T5, T7, and T9, and transmits data at a reduced Tx BW during time durations T2, T4, T6, T8, and T10. Rx 112 divides Rx BW into multiple sub-BWs, for example, 3 sub-BWs shown as denser right-slashed lines, during time durations T1, T3, T5, T7, and T9, and transmits the same data, for example, the same 20 RBs, in multiple sub-BWs. Rx 112 receives data at Rx CBW during time durations T2, T4, T6, T8, and T10. That is, the communication device 100 combines the same data of each sub-BW through Rx MRC to reduce the signal-to-noise ratio SNR under its own TX interference.

In summary, the present invention provides a communication device and a method for configuring Tx BW and Rx BW. The communication device configures Tx BW and Rx BW according to at least one configuration received from a network device. Therefore, Tx BW and Rx BW are dynamically configured, and Rx desensitization may be improved.

Those skilled in the art will readily appreciate that numerous modifications and variations can be made to the apparatus and methods while retaining the teachings of the present invention. Therefore, the above disclosure should only be limited within the scope of the appended claims.

Claims (20)

1. A method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device, comprising: Sending a first capability of a transmitter and a second capability of a receiver to a network device; receiving, from the network device, at least one configuration associated with the first capability and the second capability; and configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration, The transmitter bandwidth is within a transmitter channel bandwidth, and the receiver bandwidth is within a receiver channel bandwidth. 2. The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: reducing the transmitter bandwidth, wherein the transmitter bandwidth is less than the transmitter channel bandwidth; and The receiver bandwidth is configured to be equal to the receiver channel bandwidth. 3. The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: configuring the transmitter bandwidth to be equal to the transmitter channel bandwidth during a plurality of first durations and configuring the transmitter bandwidth to be equal to 0 during a plurality of second durations; and configuring the receiver bandwidth to be equal to 0 during the plurality of first durations, and configuring the receiver bandwidth to be equal to the receiver channel bandwidth during the plurality of second durations, The plurality of first durations and the plurality of second durations are alternately arranged and do not overlap each other. 4. The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: configuring the transmitter bandwidth to be equal to the transmitter channel bandwidth during a plurality of first durations and reducing the transmitter bandwidth during a plurality of second durations; and configuring the receiver bandwidth to be equal to 0 during the plurality of first durations, and configuring the receiver bandwidth to be equal to the receiver channel bandwidth during the plurality of second durations, The plurality of first durations and the plurality of second durations are alternately arranged and do not overlap each other. 5. The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: reducing the receiver bandwidth in response to the transmitter bandwidth increasing; and increasing the receiver bandwidth in response to the transmitter bandwidth being decreased, The gap between the transmitter bandwidth and the receiver bandwidth is greater than a threshold value. 6. The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: The receiver bandwidth is configured to be equal to 0 in response to the transmitter bandwidth being equal to the transmitter channel bandwidth. 7. The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: The transmitter bandwidth is configured to be equal to 0 during at least one specific duration. 8. The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: configuring the transmitter bandwidth to be equal to the transmitter channel bandwidth during a plurality of first durations and reducing the transmitter bandwidth during a plurality of second durations; and The receiver bandwidth is divided into a plurality of sub-bandwidths during the plurality of first durations, and the receiver bandwidth is configured to be equal to the receiver channel bandwidth during the plurality of second durations, wherein the plurality of first durations and the plurality of second durations are arranged alternately and do not overlap each other, The receiver receives the same data in the plurality of sub-bandwidths. 9. The method for configuring the transmitter bandwidth and the receiver bandwidth of a communication device according to claim 1, wherein a first center frequency of the transmitter channel bandwidth is a transmitter local oscillator frequency, and a second center frequency of the receiver channel bandwidth is a receiver local oscillator frequency. 10 . The method for configuring a transmitter bandwidth and a receiver bandwidth of a communication device according to claim 1 , wherein the communication device is a high-power user equipment. 11. A communication device for configuring a transmitter bandwidth and a receiver bandwidth, comprising: a radio transceiver configured to send or receive wireless signals; and a processing circuit coupled to the radio transceiver and configured to perform the following operations: Sending a first capability of a transmitter and a second capability of a receiver to a network device; receiving, from the network device, at least one configuration associated with the first capability and the second capability; and configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration, The transmitter bandwidth is within a transmitter channel bandwidth, and the receiver bandwidth is within a receiver channel bandwidth. 12. The communication device according to claim 11, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: reducing the transmitter bandwidth, wherein the transmitter bandwidth is less than the transmitter channel bandwidth; and The receiver bandwidth is configured to be equal to the receiver channel bandwidth. 13. The communication device according to claim 11, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: configuring the transmitter bandwidth to be equal to the transmitter channel bandwidth during a plurality of first durations and configuring the transmitter bandwidth to be equal to 0 during a plurality of second durations; and configuring the receiver bandwidth to be equal to 0 during the plurality of first durations, and configuring the receiver bandwidth to be equal to the receiver channel bandwidth during the plurality of second durations, The plurality of first durations and the plurality of second durations are alternately arranged and do not overlap each other. 14. The communication device according to claim 11, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: configuring the transmitter bandwidth to be equal to the transmitter channel bandwidth during a plurality of first durations and reducing the transmitter bandwidth during a plurality of second durations; and configuring the receiver bandwidth to be equal to 0 during the plurality of first durations, and configuring the receiver bandwidth to be equal to the receiver channel bandwidth during the plurality of second durations, The plurality of first durations and the plurality of second durations are alternately arranged and do not overlap each other. 15. The communication device according to claim 11, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: reducing the receiver bandwidth in response to the transmitter bandwidth increasing; and increasing the receiver bandwidth in response to the transmitter bandwidth being decreased, The gap between the transmitter bandwidth and the receiver bandwidth is greater than a threshold value. 16. The communication device according to claim 11, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: The receiver bandwidth is configured to be equal to 0 in response to the transmitter bandwidth being equal to the transmitter channel bandwidth. 17. The communication device according to claim 11, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: The transmitter bandwidth is configured to be equal to 0 during at least one specific duration. 18. The communication device according to claim 11, wherein the step of configuring the transmitter bandwidth and the receiver bandwidth according to the at least one configuration comprises: configuring the transmitter bandwidth to be equal to the transmitter channel bandwidth during a plurality of first durations and reducing the transmitter bandwidth during a plurality of second durations; and The receiver bandwidth is divided into a plurality of sub-bandwidths during the plurality of first durations, and the receiver bandwidth is configured to be equal to the receiver channel bandwidth during the plurality of second durations, wherein the plurality of first durations and the plurality of second durations are arranged alternately and do not overlap each other, The receiver receives the same data in the plurality of sub-bandwidths. 19. The communication device of claim 11, wherein a first center frequency of the transmitter channel bandwidth is a transmitter local oscillator frequency, and a second center frequency of the receiver channel bandwidth is a receiver local oscillator frequency. 20. The communication device according to claim 11, wherein the communication device is a high-power user equipment.