CN117256184A

CN117256184A - Method and device for transmitting user equipment capability and readable storage medium

Info

Publication number: CN117256184A
Application number: CN202280001242.5A
Authority: CN
Inventors: 郭胜祥
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2023-12-19
Also published as: WO2023201530A1

Abstract

The disclosure provides a method, a device and a readable storage medium for transmitting user equipment capability, which are applied to the technical field of wireless communication, wherein the method comprises the following steps: maximum allowed power backoff information is sent to the network device, the maximum allowed power backoff information indicating a maximum power backoff for reducing multi-carrier transmission self-interference. In the present disclosure, a new parameter is defined, which is the maximum power back-off D-MPR for reducing multi-carrier transmission self-interference _c . User equipment reports maximum power backoff D-MPR for reducing multi-carrier transmission self-interference to network equipment _c Thereafter, the network device is made aware of this maximum power backoff D-MPR for reducing multi-carrier transmission self-interference _c And determining whether to configure the user equipment to use the multi-carrier transmission mode and whether to execute multi-carrier transmission self-interference elimination processing according to the parameter, thereby reducing the self-interference of multi-carrier transmission and improving the performance of multi-carrier transmission.

Description

Method and device for transmitting user equipment capability and readable storage medium

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, and a readable storage medium for transmitting a capability of a user equipment.

Background

In some wireless communication systems, for example, in 4G or 5G communication systems, a multi-carrier technology is used to increase the transmission rate and the system capacity, but when multi-carrier transmission is implemented in some frequency band combinations, there is a problem of self-interference.

In the case of frequency band determination, the magnitude of self-interference is generally related to the uplink transmission power, and the larger the transmission power is, the larger the self-interference is, so that the larger the downlink sensitivity loss is caused.

To guarantee the performance of carrier aggregation, sensitivity losses in the worst case are usually specified, such as maximum sensitivity losses (Maximum Sensitivity Degradation, MSD). The MSD minimum requirements for different band combinations are defined as in the 3gpp 101 series standard.

For some frequency band combinations, the MSD may exceed 30dB, and when operators deploy these frequency band combinations, a manner of completely not allowing terminals in a cell to configure a multi-carrier mode may be adopted, but some terminals in a mode capable of being configured with multi-carriers cannot configure the multi-carrier mode (for example, some terminals with better MSD performance or terminals in the center of the cell have smaller sensitivity loss due to smaller transmission power, so that the rate and the system capacity cannot be improved by using the multi-carrier technology), and some terminals with larger sensitivity loss may also cause loss of system performance when operating in the multi-carrier mode.

How to reduce the self-interference of the multi-carrier mode is a technical problem to be solved.

Disclosure of Invention

The present disclosure provides a method, apparatus and readable storage medium for transmitting user equipment capability.

In a first aspect, a method for transmitting a capability of a user equipment is provided, which is executed by the user equipment and includes:

maximum allowed power backoff information is sent to the network device, the maximum allowed power backoff information indicating a maximum power backoff for reducing multi-carrier transmission self-interference.

In some possible implementations, different combinations of frequency bands used in the multicarrier transmission correspond to different maximum power back-offs.

In some possible embodiments, the method further comprises:

determining that potential self-interference exists, determining an interference type according to the potential self-interference, and determining the maximum power back-off for reducing the self-interference of multi-carrier transmission according to the interference type.

In some possible implementations, the sending the maximum allowed power backoff information to the network device includes:

and sending maximum allowable power back-off information to the network equipment in response to the maximum power back-off for reducing the self-interference of the multi-carrier transmission being greater than or equal to a power back-off threshold.

In some possible embodiments, the method further comprises:

and receiving information which is sent by the network equipment and is used for indicating the power back-off threshold.

In some possible embodiments, the method further comprises:

the power backoff threshold is determined.

In some possible implementations, the power back-off threshold is a first value and the P-MPR _c Maximum value of (2);

the first value is the sum of:

second value, deltaT _IB,c 、ΔT _C,c 、ΔT _RxSRS ；

The second value is a third value and A-MPR _c Maximum value of (2); the third value is MPR _c And Δmpr _c A kind of electronic device.

In some possible implementations, before sending the maximum allowed power backoff information to the network device, the method further comprises:

and receiving indication information which is sent by the network equipment and is used for indicating the user equipment to send the maximum allowable power back-off information.

In a second aspect, a method of receiving user equipment capabilities is provided, performed by a network device, comprising:

and receiving maximum allowed power back-off information sent by the user equipment, wherein the maximum allowed power back-off information indicates the maximum power back-off for reducing the self-interference of multi-carrier transmission.

In some possible embodiments, the maximum power back-off for reducing self-interference of multicarrier transmission is determined according to an interference type when potential self-interference exists.

In some possible embodiments, the method further comprises:

information indicating a power backoff threshold is sent to the user device.

In some possible embodiments, before receiving the maximum allowed power back-off information sent by the user equipment, the method further includes:

and sending indication information for indicating the user equipment to send the maximum allowable power back-off information to the user equipment.

In some possible implementations, the sending, to the user equipment, indication information for indicating the user equipment to send maximum allowed power back-off information includes:

and after determining that potential self-interference exists according to each member carrier of the multi-carrier transmission of the user equipment, sending indication information for indicating the user equipment to send maximum allowable power back-off information to the user equipment.

In some possible embodiments, the method further comprises:

and determining whether to send the multi-carrier transmission configuration information to the user equipment according to the maximum power back-off for reducing the self-interference of the multi-carrier transmission.

In some possible embodiments, the method further comprises:

and determining whether to execute the multi-carrier transmission self-interference elimination processing according to the maximum power back-off for reducing the multi-carrier transmission self-interference.

In some possible embodiments, the multicarrier transmission self-interference cancellation process includes at least one of:

adjusting the frame structure of the member carriers of the multi-carrier transmission of the user equipment to avoid opposite directions of data transmission among different member carriers on the same time domain unit;

increasing a downlink transmit power for a downlink signal transmitted to the user equipment;

and sending uplink transmitting power configuration information to the user equipment, wherein the uplink transmitting power configuration information is used for indicating to reduce the uplink transmitting power.

In a third aspect, a communication device is provided. The communication apparatus may be adapted to perform the steps performed by the user equipment in the first aspect or any of the possible designs of the first aspect. The user equipment may implement the functions in the methods described above in the form of hardware structures, software modules, or both.

When the communication device of the first aspect is implemented by a software module, the communication device may comprise a transceiver module.

And a transceiver module configured to transmit, to the network device, maximum allowed power backoff information indicating a maximum power backoff for reducing self-interference of multicarrier transmission.

In a fourth aspect, a communication device is provided. The communication means may be arranged to perform the steps performed by the network device in the second aspect or any of the possible designs of the second aspect described above. The network device may implement the functions of the methods described above in the form of hardware structures, software modules, or both.

When the communication device of the second aspect is implemented by a software module, the communication device may comprise a transceiver module.

And a transceiver module configured to receive maximum allowed power back-off information sent by the user equipment, the maximum allowed power back-off information indicating a maximum power back-off for reducing self-interference of multicarrier transmission.

In a fifth aspect, a communication device is provided, comprising a processor and a memory; the memory is used for storing a computer program; the processor is configured to execute the computer program to implement the first aspect or any one of the possible designs of the first aspect.

In a sixth aspect, a communication device is provided, comprising a processor and a memory; the memory is used for storing a computer program; the processor is configured to execute the computer program to implement the second aspect or any one of the possible designs of the second aspect.

In a seventh aspect, there is provided a computer readable storage medium having stored therein instructions (or computer programs, programs) which when invoked for execution on a computer, cause the computer to perform any one of the possible designs of the first aspect or the first aspect.

In an eighth aspect, there is provided a computer readable storage medium having stored therein instructions (or computer programs, programs) which when invoked for execution on a computer, cause the computer to perform any one of the possible designs of the second aspect or the second aspect described above.

In the present disclosure, a new parameter is defined, which is the maximum power back-off D-MPR for reducing multi-carrier transmission self-interference _c . User equipment reports maximum power backoff D-MPR for reducing multi-carrier transmission self-interference to network equipment _c Thereafter, the network device is made aware of this maximum power backoff D-MPR for reducing multi-carrier transmission self-interference _c And determining whether to configure the user equipment to use the multi-carrier transmission mode and whether to execute multi-carrier transmission self-interference elimination processing according to the parameter, thereby reducing the self-interference of multi-carrier transmission and improving the performance of multi-carrier transmission.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the embodiments of the disclosure and not to limit the embodiments of the disclosure unduly. In the drawings:

the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the embodiments of the disclosure.

Fig. 1 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating a method of transmitting user equipment capabilities according to an example embodiment;

FIG. 3 is a schematic diagram illustrating another method of transmitting user equipment capabilities according to an example embodiment;

FIG. 4 is a flowchart illustrating a method of transmitting user equipment capabilities according to an example embodiment;

FIG. 5 is a flowchart illustrating another method of transmitting user equipment capabilities according to an example embodiment;

FIG. 6 is a flowchart illustrating another method of transmitting user equipment capabilities according to an example embodiment;

FIG. 7 is a flowchart illustrating a method of receiving user equipment capabilities according to an example embodiment;

FIG. 8 is a flowchart illustrating another method of receiving user equipment capabilities according to an example embodiment;

FIG. 9 is a block diagram illustrating an apparatus for transmitting user equipment capabilities according to an example embodiment;

FIG. 10 is a block diagram illustrating another apparatus for transmitting user equipment capabilities according to an example embodiment;

FIG. 11 is a block diagram illustrating another apparatus for receiving user equipment capabilities according to an example embodiment;

fig. 12 is a block diagram illustrating another apparatus for receiving user equipment capabilities according to an example embodiment.

Detailed Description

Embodiments of the present disclosure will now be further described with reference to the drawings and detailed description.

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

As shown in fig. 1, a method for transmitting user equipment capability provided by embodiments of the present disclosure may be applied to a wireless communication system 100, which may include, but is not limited to, a network device 101 and a user device 102. User equipment 102 is configured to support carrier aggregation, and user equipment 102 may be connected to multiple carrier elements of network equipment 101, including one primary carrier element and one or more secondary carrier elements.

It should be appreciated that the above wireless communication system 100 is applicable to both low frequency and high frequency scenarios. Application scenarios of the wireless communication system 100 include, but are not limited to, long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD) systems, worldwide interoperability for microwave access (worldwide interoperability for micro wave access, wiMAX) communication systems, cloud radio access network (cloud radio access network, CRAN) systems, future fifth Generation (5 th-Generation, 5G) systems, new Radio (NR) communication systems, or future evolved public land mobile network (public land mobile network, PLMN) systems, and the like.

The user equipment 102 shown above may be a User Equipment (UE), a terminal, an access terminal, a terminal unit, a terminal station, a Mobile Station (MS), a remote station, a remote terminal, a mobile terminal (mobile terminal), a wireless communication device, a terminal proxy, a user equipment, or the like. The user device 102 may be provided with wireless transceiver functionality capable of communicating (e.g., wirelessly communicating) with one or more network devices 101 of one or more communication systems and receiving network services provided by the network devices 101, where the network devices 101 include, but are not limited to, the illustrated base stations.

The user device 102 may be, among other things, a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant) personal digital assistant, a PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a user device in a future 5G network or a user device in a future evolved PLMN network, etc.

The network device 101 may be an access network device (or access network site). The access network device refers to a device that provides a network access function, such as a radio access network (radio access network, RAN) base station, etc. The network device may specifically include a Base Station (BS) device, or include a base station device, a radio resource management device for controlling the base station device, and the like. The network device may also include a relay station (relay device), an access point, a base station in a future 5G network, a base station in a future evolved PLMN network, or an NR base station, etc. The network device may be a wearable device or an in-vehicle device. The network device may also be a communication chip with a communication module.

For example, network device 101 includes, but is not limited to: a next generation base station (gnodeB, gNB) in 5G, an evolved node B (eNB) in LTE system, a radio network controller (radio network controller, RNC), a Node B (NB) in WCDMA system, a radio controller under CRAN system, a base station controller (basestation controller, BSC), a base transceiver station (base transceiver station, BTS) in GSM system or CDMA system, a home base station (e.g., home evolved nodeB, or home node B, HNB), a baseband unit (BBU), a transmission point (transmitting and receiving point, TRP), a transmission point (transmitting point, TP), a mobile switching center, or the like.

The multicarrier transmission in the present disclosure may be a carrier aggregation transmission or a dual link transmission. For example: the double link is EN-DC (EUTRA-NR Dual Connection).

An embodiment of the present disclosure provides a method for transmitting a capability of a user equipment, and fig. 2 is a flowchart of a method for transmitting a capability of a user equipment, as shown in fig. 2, and the method includes steps S201 to S202, specifically:

in step S201, the user equipment transmits maximum allowed power backoff information to the network device.

Wherein the maximum allowed power backoff information sent by the user device to the network device indicates a maximum power backoff for reducing self-interference of multi-carrier transmission.

D-MPR is used in the present disclosure _c Representing the maximum power backoff for reducing self-interference of multicarrier transmission.

In some possible implementations, the user equipment introduces D-MPR in the configuration power calculation of inter-bandCA in TS38.101-1 and inter-bandEN-DC of TS38.101-3 _c ,。

In an example, the user equipment determines the maximum transmit power P _CMAX When it is needed to meet P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H。}

The user equipment determines pcmax_l according to formula (1), and pcmax_h according to formula (2).

P _{CMAX_L} ＝MIN{10log ₁₀ ∑MIN[p _EMAX,c /(Δt _C,c ),p _PowerClass.c /(MAX(mpr _c ·Δmpr _c ,a-mpr _c )·Δt _C,c ·Δt _IB,c ·Δt _RxSRS,c ),

p _PowerClass,c /pmpr _c ，p _PowerClass,c /dmpr _c ],P _EMAX,CA ,P _{PowerClass,CA} -ΔP _{PowerClass,CA} } (1)

P _{CMAX_H} ＝MIN{10log ₁₀ ∑p _EMAX,c ,P _EMAX,CA ,P _{PowerClass,CA} -ΔP _{PowerClass,CA} } (2)

Wherein dmpr _c Is D-MPR _c Linear value of pmpr _c Is P-MPR _c Is a linear value of (c). The definition of each parameter is shown in section 6.2.4 of TS 38.101-1.

For example, P-MPR _c For MPR for power management _c ，MPR _c Is the allowed maximum transmit power backoff for serving cell c.

ΔT _IB,c Is a configuration parameter for inter-band carrier aggregation as shown in table 6.2a.4.2.3-1 in TS 38.101-1.

ΔT _C,c When the case of note 3 in table 6.2.1-1 (UE power class) in TS38.101-1 is applied to serving cell c, Δt _C,c Has a value of 1.5dB, and in other cases, deltaT _C,c The value of (2) is 0dB.

In some possible embodiments, the different frequency band combinations used in the multicarrier transmission correspond to different D-MPRs _c 。

In one example:

the frequency band combination in the carrier aggregation used by the user equipment is frequency band A and frequency band B, corresponding D-MPR _c The specific value of (2) is X1.

The frequency band combination in the carrier aggregation used by the user equipment is frequency band A and frequency band C, corresponding D-MPR _c The specific value of (2) is X2.

The frequency band combination in the carrier aggregation used by the user equipment is frequency band B and frequency band C, corresponding D-MPR _c The specific value of (2) is X3.

Wherein any two values of X1, X2 and X3 are different.

In some possible embodiments, the ue determines the maximum power backoff for reducing self-interference of multicarrier transmission according to a maximum sensitivity loss.

In one example, the first frequency band and the MSD of the first frequency band in the multi-carrier transmission are 10dB, and the D-MPR is determined when the transmission power is reduced by 5dB and the MSD is reduced to 0dB _c Is 5dB.

In an example, after determining that there is potential self-interference in the multicarrier transmission, the ue determines an interference type according to the potential self-interference, and determines the maximum power backoff for reducing the self-interference in the multicarrier transmission according to the interference type.

In step S202, the network device determines whether to send the configuration information of the multi-carrier transmission to the user device and/or determine whether to perform the self-interference cancellation processing of the multi-carrier transmission according to the maximum power back-off for reducing the self-interference of the multi-carrier transmission.

Wherein the multicarrier transmission self-interference cancellation process comprises at least one of:

In embodiments of the present disclosure, a new parameter is defined, which is the maximum power back-off D-MPR for reducing multi-carrier transmission self-interference _c . User equipment reports maximum power backoff D-MPR for reducing multi-carrier transmission self-interference to network equipment _c Thereafter, the network device is made aware of this maximum power backoff D-MPR for reducing multi-carrier transmission self-interference _c And determining whether to configure the user equipment to use the multi-carrier transmission mode and whether to execute multi-carrier transmission self-interference elimination processing according to the parameter, thereby reducing the self-interference of multi-carrier transmission and improving the performance of multi-carrier transmission.

An embodiment of the present disclosure provides a method for transmitting a capability of a user equipment, and fig. 3 is a flowchart illustrating a method for transmitting a capability of a user equipment according to an exemplary embodiment, and as shown in fig. 3, the method includes:

step S200: the network equipment sends indication information for indicating the user equipment to send maximum allowable power back-off information to the user equipment.

And the steps S201 and S202.

An embodiment of the present disclosure provides a method for transmitting a capability of a user equipment, which is performed by the user equipment, and fig. 4 is a flowchart illustrating a method for transmitting a capability of the user equipment according to an exemplary embodiment, as shown in fig. 4, including:

step S401, sending maximum allowable power back-off information to the network device.

Wherein the maximum allowed power backoff information sent by the user device to the network device indicates a maximum power backoff for reducing self-interference.

D-MPR is used in the present disclosure _c Representing the maximum power backoff for reducing self-interference.

In one example:

Wherein any two values of X1, X2 and X3 are different.

In some possible embodiments, the maximum power back-off for reducing self-interference is determined according to the type of interference when potential self-interference is present.

In an example, after determining that there is potential self-interference in the multicarrier transmission, the ue determines an interference type according to the potential self-interference, and determines the maximum power backoff for reducing self-interference according to the interference type.

The manner in which the ue determines whether there is potential self-interference in the multicarrier transmission includes the following two methods:

Mode one

Whether potential self-interference exists is determined according to a frequency relation among member carriers in multi-carrier transmission based on the TR37.863 specification, and when the potential self-interference exists, an interference type of the potential self-interference is determined.

Calculating the interference center frequency f according to formula (3) _INT ：

f _INT ＝a×f _TX1 +b×f _RX1 +c×f _TX2 +d×f _RX2 (3)

The coefficients a, b, c, d can be obtained from the MSD table in sub-specification 7.3b.2, among others.

Calculating interference affected bandwidth BW according to equation (4) _INT ：

BW _INT ＝a×CBW _TX1 +c×CBW _TX2 (4)

Where CBW represents the channel bandwidth.

When the formula (5) is satisfied, it is determined that the interference signal falls within the frequency band of the reception signal RX1 to cause self-interference.

When the formula (6) is satisfied, it is determined that the interference signal falls within the frequency band of the reception signal RX2 to cause self-interference.

If it is determined that self-interference is generated according to formula (5) or formula (6), it is possible to further determine the interference type according to the coefficients in formula (3).

In one example:

if only one of a and b has a value of 0, the interference type is harmonic interference, and the number of harmonics is determined by a coefficient having a value other than zero.

If both a and b are not 0, intermodulation interference is obtained, and the intermodulation order is the sum of the absolute value of a and the absolute value of b.

Mode two

Whether there is a potential self-interference of the harmonic interference type between the component carriers of the multicarrier transmission is determined from the table in section 7.3a.4 of the TS38.101 standard regarding harmonic interference.

Whether there is potential self-interference of the intermodulation interference type between the component carriers of the multicarrier transmission is determined from the table in section 7.3a.5 of the TS38.101 standard regarding intermodulation interference.

Whether potential self-interference of adjacent channel interference type exists among the component carriers of the multi-carrier transmission is determined according to the table about adjacent channel interference in section 7.3A.6 in the TS38.101 standard.

Mode three

And determining whether potential self-interference exists among the member carriers of the multi-carrier transmission according to the self-defined table, and determining the interference type of the potential self-interference.

In one example, table 1 is an exemplary table.

TABLE 1

An embodiment of the present disclosure provides a method for transmitting a capability of a user equipment, which is performed by the user equipment, and fig. 5 is a flowchart illustrating a method for transmitting a capability of the user equipment according to an exemplary embodiment, as shown in fig. 5, including:

in step S501, maximum allowed power backoff information is sent to the network device in response to the maximum power backoff for reducing self-interference being greater than or equal to a power backoff threshold.

In some possible implementations, the power backoff threshold is determined according to a configuration of the network device. For example: prior to step S501, the user equipment receives information sent by the network equipment and used for indicating a power back-off threshold, so as to learn the power back-off threshold.

In some possible implementations, the power back-off threshold is determined by the user equipment itself. For example: the power back-off threshold is a first value and P-MPR _c Is the maximum value of (a). The first value is the sum of: second value, deltaT _IB,c 、ΔT _C,c 、ΔT _RxSRS . The second value is a third value and A-MPR _c Maximum value of (2); the third value is MPR _c And Δmpr _c A kind of electronic device.

In another representation, the power backoff threshold is MAX (MPR _c +ΔMPR _c ,A-MPR _c )+ΔT _IB,c +ΔT _C,c +ΔT _RxSRS ，P-MPR _c ) Where MAX is a function that takes a larger value. Wherein, the definition of each parameter is shown in section 6.2.4 of TS 38.101-1.

ΔT _C,c When the case of note 3 in table 6.2.1-1 (UE power class) in TS38.101-1 is applied to serving cell c, Δt _C,c The value of (2) is1.5dB, in other scenarios, deltaT _C,c The value of (2) is 0dB.

In one example:

Wherein any two values of X1, X2 and X3 are different.

The manner in which the ue determines whether there is potential self-interference in the multicarrier transmission includes the first and second manners shown in the foregoing embodiments.

An embodiment of the present disclosure provides a method for transmitting a capability of a user equipment, which is performed by the user equipment, and fig. 6 is a flowchart illustrating a method for transmitting a capability of the user equipment according to an exemplary embodiment, as shown in fig. 6, including:

step S600, receiving indication information sent by the network device and used for indicating the user device to send the maximum allowable power back-off information.

Step S601, maximum allowable power backoff information is sent to the network device.

Step S601 is the same as step S401 described above.

The disclosed embodiments provide a method for receiving user equipment capability, which is performed by a network device, and fig. 7 is a flowchart illustrating a method for receiving user equipment capability according to an exemplary embodiment, as shown in fig. 7, including:

step S701, receiving maximum allowable power back-off information sent by the user equipment.

The maximum allowed power backoff information transmitted by the user device indicates a maximum power backoff for reducing self-interference of multi-carrier transmission.

Step S701 is the same as step S401 described above.

In some possible embodiments, step S702 is further included, where it is determined whether to send multicarrier transmission configuration information to the user equipment and/or whether to perform multicarrier transmission self-interference cancellation processing according to the maximum power backoff for reducing multicarrier transmission self-interference.

An embodiment of the present disclosure provides a method for receiving a capability of a user equipment, which is performed by a network device, and fig. 8 is a flowchart illustrating a method for receiving a capability of a user equipment according to an exemplary embodiment, as shown in fig. 8, including:

step S800, sending indication information for indicating the ue to send maximum allowed power back-off information to the ue.

In some possible embodiments, step S700 includes: and after determining that potential self-interference exists according to each member carrier of the multi-carrier transmission of the user equipment, sending indication information for indicating the user equipment to send maximum allowable power back-off information to the user equipment.

The method for determining whether the potential self-interference exists is the same as the method for determining whether the potential self-interference exists by the user equipment in the previous embodiment, and is not described herein.

Step S801, receiving maximum allowable power back-off information sent by the user equipment.

Step S801 is the same as step S401 described above.

In some possible embodiments, step S802 is further included. This step S802 is the same as step S702 described above.

Based on the same concept as the above method embodiments, the present disclosure also provides an electronic device, which may have the functions of the user device 102 in the above method embodiments, and is configured to perform the steps performed by the user device 102 provided in the above embodiments. The functions may be implemented by hardware, or may be implemented by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible implementation, the electronic device 900 shown in fig. 9 may be used as the user device 102 according to the above-described method embodiment, and perform the steps performed by the user device 102 in the above-described one method embodiment.

The communication device 900 comprises a transceiver module 901 and a processing module 902.

A transceiver module 901 configured to send maximum allowed power backoff information to the network device, the maximum allowed power backoff information indicating a maximum power backoff for reducing self-interference of multicarrier transmission.

In one possible implementation, different combinations of frequency bands used in the multicarrier transmission correspond to different maximum power back-offs.

In one possible implementation, the processing module 902 is configured to determine that there is potential self-interference, determine an interference type from the potential self-interference, and determine the maximum power backoff for reducing multi-carrier transmission self-interference from the interference type.

In one possible implementation, the transceiver module 901 is further configured to send maximum allowed power backoff information to the network device in response to the maximum power backoff for reducing self-interference of multicarrier transmission being greater than or equal to a power backoff threshold.

In one possible implementation, the transceiver module 901 is further configured to receive information sent by the network device for indicating the power back-off threshold.

In one possible implementation, the processing module 902 is further configured to determine the power back-off threshold.

In one possible implementation, the power back-off threshold is a first value and P-MPR _c Maximum value of (2);

the first value is the sum of:

second value, deltaT _IB,c 、ΔT _C,c 、ΔT _RxSRS ；

In a possible implementation manner, the transceiver module 901 is further configured to receive indication information sent by the network device and used for indicating the user device to send maximum allowed power back-off information.

When the communication device is a user equipment 102, its structure may also be as shown in fig. 10.

Fig. 10 is a block diagram illustrating an apparatus 1000 for transmitting user equipment capabilities according to an example embodiment. For example, apparatus 1000 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.

Referring to fig. 10, the apparatus 1000 may include one or more of the following components: a processing component 1002, a memory 1004, a power component 1006, a multimedia component 1008, an audio component 1010, an input/output (I/O) interface 1012, a sensor component 1014, and a communication component 1016.

The processing component 1002 generally controls overall operation of the apparatus 1000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1002 can include one or more processors 1020 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1002 can include one or more modules that facilitate interaction between the processing component 1002 and other components. For example, the processing component 1002 can include a multimedia module to facilitate interaction between the multimedia component 1008 and the processing component 1002.

The memory 1004 is configured to store various types of data to support operations at the device 1000. Examples of such data include instructions for any application or method operating on the device 1000, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1004 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 1006 provides power to the various components of the device 1000. Power component 1006 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 1000.

The multimedia component 1008 includes a screen between the device 1000 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia assembly 1008 includes a front-facing camera and/or a rear-facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 1000 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 1010 is configured to output and/or input audio signals. For example, the audio component 1010 includes a Microphone (MIC) configured to receive external audio signals when the device 1000 is in an operational mode, such as a call mode, a recording mode, and a speech recognition mode. The received audio signals may be further stored in memory 1004 or transmitted via communication component 1016. In some embodiments, the audio component 1010 further comprises a speaker for outputting audio signals.

The I/O interface 1012 provides an interface between the processing assembly 1002 and peripheral interface modules, which may be a keyboard, click wheel, buttons, and the like. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 1014 includes one or more sensors for providing status assessment of various aspects of the device 1000. For example, the sensor assembly 1014 may detect an on/off state of the device 1000, a relative positioning of the components, such as a display and keypad of the apparatus 1000, the sensor assembly 1014 may also detect a change in position of the apparatus 1000 or a component of the apparatus 1000, the presence or absence of user contact with the apparatus 1000, an orientation or acceleration/deceleration of the apparatus 1000, and a change in temperature of the apparatus 1000. The sensor assembly 1014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1014 can also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1016 is configured to facilitate communication between the apparatus 1000 and other devices, either wired or wireless. The device 1000 may access a wireless network based on a communication standard, such as WiFi,4G or 5G, or a combination thereof. In one exemplary embodiment, the communication component 1016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1016 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 1004, including instructions executable by processor 1020 of apparatus 1000 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Based on the same concept as the above method embodiments, the present disclosure also provides a communication apparatus that may have the function of the network device 101 in the above method embodiments and is used to perform the steps performed by the network device 101 provided in the above embodiments. The functions may be implemented by hardware, or may be implemented by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible implementation, the communication apparatus 1100 shown in fig. 11 may be used as the network device 101 according to the above-described method embodiment, and perform the steps performed by the network device 101 in the above-described method embodiment.

The communication device 1100 as shown in fig. 11 includes a transceiver module 1101 and a processing module 1102.

The transceiver module 1101 is configured to receive maximum allowed power back-off information sent by the user equipment, the maximum allowed power back-off information indicating a maximum power back-off for reducing self-interference of multi-carrier transmission.

In one possible implementation, the maximum power back-off for reducing self-interference of multicarrier transmission is determined according to the type of interference when potential self-interference exists.

In one possible implementation, the transceiver module 1101 is further configured to send information indicating a power back-off threshold to the user equipment.

In a possible implementation, the transceiver module 1101 is further configured to send indication information to the user equipment for indicating that the user equipment sends maximum allowed power back-off information.

In a possible implementation manner, the processing module 1102 is configured to determine that potential self-interference exists according to each component carrier of the multi-carrier transmission of the user equipment;

the transceiver module 1101 is further configured to send indication information for indicating the ue to send maximum allowed power back-off information to the ue after determining that there is potential self-interference according to each component carrier of the multi-carrier transmission of the ue.

In a possible implementation manner, the processing module 1101 is further configured to determine whether to send the multicarrier transmission configuration information to the user equipment according to the maximum power backoff for reducing self-interference of multicarrier transmission.

In a possible implementation manner, the processing module 1101 is further configured to determine whether to perform the multicarrier transmission self-interference cancellation processing according to the maximum power backoff for reducing multicarrier transmission self-interference.

In one possible implementation manner, the multi-carrier transmission self-interference cancellation process includes at least one of the following:

When the communication apparatus is the network device 101, its structure may also be as shown in fig. 12. As shown in fig. 12, the apparatus 1200 includes a memory 1201, a processor 1202, a transceiver component 1203, and a power supply component 1206. The memory 1201 is coupled to the processor 1202 and can be used to store programs and data necessary for the communication apparatus 1200 to perform various functions. The processor 1202 is configured to support the communication apparatus 1200 to perform the corresponding functions of the above-described method, which can be implemented by calling a program stored in the memory 1201. The transceiver component 1203 may be a wireless transceiver that can be utilized to support the communication device 1200 in receiving signaling and/or data over a wireless air interface and transmitting signaling and/or data. The transceiver 1203 may also be referred to as a transceiver unit or a communication unit, and the transceiver 1203 may include a radio frequency component 1204 and one or more antennas 1205, where the radio frequency component 1204 may be a remote radio frequency unit (remote radio unit, RRU), and may be specifically used for transmitting radio frequency signals and converting radio frequency signals into baseband signals, and the one or more antennas 1205 may be specifically used for radiating and receiving radio frequency signals.

When the communication device 1200 needs to transmit data, the processor 1202 may perform baseband processing on the data to be transmitted and output a baseband signal to the radio frequency unit, where the radio frequency unit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal in the form of electromagnetic wave through the antenna. When data is transmitted to the communication device 1200, the radio frequency unit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1202, and the processor 1202 converts the baseband signal into data and processes the data.

Other implementations of the disclosed embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosed embodiments following, in general, the principles of the disclosed embodiments and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosed embodiments being indicated by the following claims.

It is to be understood that the disclosed embodiments are not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present disclosure is limited only by the appended claims.

Industrial applicability

User equipment reports maximum power backoff D-MPR for reducing multi-carrier transmission self-interference to network equipment _c Thereafter, the network device is made aware of this maximum power backoff D-MPR for reducing multi-carrier transmission self-interference _c And determining whether to configure the user equipment to use the multi-carrier transmission mode and whether to execute multi-carrier transmission self-interference elimination processing according to the parameter, thereby reducing the self-interference of multi-carrier transmission and improving the performance of multi-carrier transmission.

Claims

A method of transmitting user equipment capabilities, performed by a user equipment, the method comprising:

maximum allowed power backoff information is sent to the network device, the maximum allowed power backoff information indicating a maximum power backoff for reducing multi-carrier transmission self-interference.
The method of claim 1, wherein,

different combinations of frequency bands used in multicarrier transmission correspond to different maximum power back-offs.
The method of claim 1, wherein the method further comprises:

determining that potential self-interference exists, determining an interference type according to the potential self-interference, and determining the maximum power back-off for reducing the self-interference of multi-carrier transmission according to the interference type.
A method as claimed in any one of claims 1 to 3, wherein sending maximum allowed power back-off information to the network device comprises:

and sending maximum allowable power back-off information to the network equipment in response to the maximum power back-off for reducing the self-interference of the multi-carrier transmission being greater than or equal to a power back-off threshold.
The method of claim 4, wherein the method further comprises:

and receiving information which is sent by the network equipment and is used for indicating the power back-off threshold.
The method of claim 4, wherein the method further comprises:

the power backoff threshold is determined.
The method of claim 6, wherein,

the power back-off threshold is a first value and P-MPR _c Maximum value of (2);

the first value is the sum of:

second value, deltaT _IB,c 、ΔT _C,c 、ΔT _RxSRS ；

The second value is a third value and A-MPR _c Maximum value of (2); the third value is MPR _c And Δmpr _c A kind of electronic device.
A method as claimed in any one of claims 1 to 3, wherein prior to sending the maximum allowed power back-off information to the network device, the method further comprises:

and receiving indication information which is sent by the network equipment and is used for indicating the user equipment to send the maximum allowable power back-off information.
A method of receiving user equipment capabilities, performed by a network device, the method comprising:

and receiving maximum allowed power back-off information sent by the user equipment, wherein the maximum allowed power back-off information indicates the maximum power back-off for reducing the self-interference of multi-carrier transmission.
The method of claim 9, wherein,

different combinations of frequency bands used in multicarrier transmission correspond to different maximum power back-offs.
The method of claim 9, wherein,

the maximum power back-off for reducing self-interference of the multicarrier transmission is determined based on the type of interference when potential self-interference is present.
The method of claim 9, wherein the method further comprises:

information indicating a power backoff threshold is sent to the user device.
The method according to any of claims 9 to 12, wherein prior to receiving the maximum allowed power back-off information sent by the user equipment, the method further comprises:

and sending indication information for indicating the user equipment to send the maximum allowable power back-off information to the user equipment.
The method of claim 13, wherein the transmitting, to a user equipment, indication information for indicating the user equipment to transmit maximum allowed power back-off information comprises:

And after determining that potential self-interference exists according to each member carrier of the multi-carrier transmission of the user equipment, sending indication information for indicating the user equipment to send maximum allowable power back-off information to the user equipment.
The method of claim 9, wherein the method further comprises:

and determining whether to send the multi-carrier transmission configuration information to the user equipment according to the maximum power back-off for reducing the self-interference of the multi-carrier transmission.
The method of claim 9, wherein the method further comprises:

and determining whether to execute the multi-carrier transmission self-interference elimination processing according to the maximum power back-off for reducing the multi-carrier transmission self-interference.
The method of claim 16, wherein the multicarrier transmission self-interference cancellation process comprises at least one of:

adjusting the frame structure of the member carriers of the multi-carrier transmission of the user equipment to avoid opposite directions of data transmission among different member carriers on the same time domain unit;

increasing a downlink transmit power for a downlink signal transmitted to the user equipment;

and sending uplink transmitting power configuration information to the user equipment, wherein the uplink transmitting power configuration information is used for indicating to reduce the uplink transmitting power.
An apparatus for transmitting user equipment capabilities, configured for user equipment, comprising:

and a transceiver module configured to transmit, to the network device, maximum allowed power backoff information indicating a maximum power backoff for reducing self-interference of multicarrier transmission.
An apparatus for receiving user equipment capabilities, configured for a network device, comprising:

and a transceiver module configured to receive maximum allowed power back-off information sent by the user equipment, the maximum allowed power back-off information indicating a maximum power back-off for reducing self-interference of multicarrier transmission.
An electronic device comprising a processor and a memory, wherein,

the memory is used for storing a computer program;

the processor is configured to execute the computer program to implement the method of any one of claims 1-8.
A communication device includes a processor and a memory, wherein,

the memory is used for storing a computer program;

the processor is configured to execute the computer program to implement the method of any of claims 9-17.
A computer readable storage medium having instructions stored therein which, when invoked for execution on a computer, cause the computer to perform the method of any of claims 1-8.
A computer readable storage medium having instructions stored therein which, when invoked for execution on a computer, cause the computer to perform the method of any of claims 9-17.