CN116783915A

CN116783915A - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN116783915A
Application number: CN202180090564.7A
Authority: CN
Inventors: 邢金强
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2023-09-19
Also published as: WO2022236697A1

Abstract

A method of wireless communication, a terminal device and a network device, the method comprising: the terminal device sends first information to the network device, wherein the first information is used for determining the maximum bandwidth limitation of the terminal device working in a carrier aggregation CA mode and a multiple input multiple output MIMO mode simultaneously. The terminal equipment reports the maximum bandwidth limit which simultaneously works in the CA mode and the MIMO mode to the network equipment, so that the network equipment can properly configure the terminal equipment according to the working mode of the terminal equipment in combination with the maximum bandwidth limit, and the requirements of different scenes of the terminal equipment are favorably met.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the field of communication, in particular to a wireless communication method, terminal equipment and network equipment.

Background

Both carrier aggregation (Carrier Aggregation, CA) and multiple input multiple output (Multiple Input Multiple Output, MIMO) techniques are effective means of improving throughput of a terminal device. The CA technology adopts a mode of aggregation transmission by a plurality of carriers to improve the bandwidth of the transmission, thereby improving the throughput of the terminal equipment. The MIMO technology is to implement multi-stream parallel transmission using spatial characteristics of a plurality of transmitting antennas in case that a terminal device has the plurality of antennas, thereby improving throughput of the terminal device.

In a New Radio (NR) system, considering that the throughput of a terminal device is improved by using CA and MIMO technologies simultaneously, with the improvement of CA technology, the aggregate bandwidth of multiple carriers is wider and wider, so how a network device configures the terminal device to support the terminal device to operate in CA mode and MIMO mode simultaneously to further improve the throughput of the terminal device is an urgent problem to be solved.

Disclosure of Invention

The application provides a wireless communication method, terminal equipment and network equipment, wherein the terminal equipment reports the maximum bandwidth limit which simultaneously works in a CA mode and a MIMO mode to the network equipment, so that the network equipment can properly configure the terminal equipment according to the working mode of the terminal equipment in combination with the maximum bandwidth limit, and the transmission requirements of different scenes of the terminal equipment are favorably met.

In a first aspect, a method of wireless communication is provided, comprising: the terminal device sends first information to the network device, wherein the first information is used for determining the maximum bandwidth limitation of the terminal device working in a carrier aggregation CA mode and a multiple input multiple output MIMO mode simultaneously.

In a second aspect, there is provided a method of wireless communication, comprising: the network device receives first information sent by the terminal device, wherein the first information is used for determining the maximum bandwidth limitation of the terminal device working in a carrier aggregation CA mode and a multiple input multiple output MIMO mode at the same time.

In a third aspect, a terminal device is provided for performing the method in the first aspect or each implementation manner thereof.

Specifically, the terminal device comprises functional modules for performing the method of the first aspect or its implementation manner.

In a fourth aspect, a network device is provided for performing the method of the second aspect or implementations thereof.

In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

In a fifth aspect, a terminal device is provided comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or various implementation manners thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above.

A seventh aspect provides a chip for implementing the method of any one of the first to second aspects or each implementation thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method as in any one of the first to second aspects or implementations thereof described above.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the method of any one of the above-described first to second aspects or implementations thereof.

A ninth aspect provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

Through the technical scheme, the terminal equipment reports the maximum bandwidth limit which simultaneously works in the CA mode and the MIMO mode to the network equipment, so that the network equipment can properly configure the terminal equipment according to the working mode of the terminal equipment by combining the maximum bandwidth limit, and the transmission requirements of different scenes of the terminal equipment are favorably met.

Drawings

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

Fig. 2 is a schematic structural diagram of a terminal having two transmit paths.

Fig. 3 is a schematic flow chart of a method of wireless communication provided in accordance with an embodiment of the present application.

Fig. 4 is a schematic diagram of the relationship between the CA bandwidth and the maximum bandwidth of a single transmit link and the mode of operation of the terminal device.

Fig. 5 is another schematic diagram of the relationship between CA bandwidth and maximum bandwidth of a single transmit link and the mode of operation of a terminal device.

Fig. 6 is a schematic diagram of a manner of determining CA bandwidth according to one embodiment of the application.

Fig. 7 is a schematic flow chart diagram of another method of wireless communication provided in accordance with an embodiment of the present application.

Fig. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a chip provided according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication system provided in accordance with an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art to which the application pertains without inventive faculty, are intended to fall within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), fifth Generation communication (5 th-Generation, 5G) system, or other communication system, etc.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, as the communication technology advances, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, or internet of vehicles (Vehicle to everything, V2X) communication, etc., to which the embodiments of the present application can also be applied.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a Stand Alone (SA) fabric scenario.

Optionally, the communication system in the embodiment of the present application may be applied to unlicensed spectrum, where unlicensed spectrum may also be considered as shared spectrum; alternatively, the communication system in the embodiment of the present application may also be applied to licensed spectrum, where licensed spectrum may also be considered as non-shared spectrum.

Embodiments of the present application are described in connection with a network device and a terminal device, where the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, a User Equipment, or the like.

The terminal device may be a STATION (ST) in a WLAN, may be 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, PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal device in a next generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In the embodiment of the application, the terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), and the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In the embodiment of the present application, the network device may be a device for communicating with a mobile device, where the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device (gNB) in NR network, a network device in future evolved PLMN network, or a network device in NTN network, etc.

By way of example, and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In the embodiment of the present application, a network device may provide services for a cell, where a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (e.g., a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

An exemplary communication system 100 to which embodiments of the present application may be applied is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

Fig. 1 illustrates one network device and two terminal devices by way of example, and the communication system 100 may alternatively include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device, as embodiments of the application are not limited in this regard.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited by the embodiment of the present application.

It should be understood that a device having a communication function in a network/system according to an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, etc.

In the embodiment of the present application, the "predefining" may be implemented by pre-storing corresponding codes, tables or other manners that may be used to indicate relevant information in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation manner thereof. Such as predefined may refer to what is defined in the protocol.

In the embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited in the present application.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the related art of the present application will be described.

In LTE systems, the improvement of uplink throughput is usually achieved using CA technology instead of MIMO technology, since MIMO technology requires that the terminal device has multiple antennas, whereas for uplink transmission of the terminal device, the use of multiple transmit antennas means that multiple transmit chains (or transmit paths) need to be present at the same time. Fig. 2 is a schematic diagram of a structure of a terminal having two transmit paths, each of which requires a Power Amplifier (PA), an up-conversion unit, etc., which presents challenges to the cost and design complexity of the terminal equipment.

In an NR system, considering that the throughput of a terminal device is improved by using CA and MIMO technologies at the same time, with the improvement of CA technology, the aggregate bandwidth of multiple carriers is wider and wider, so how a network device configures the terminal device to support the terminal device to operate in a CA mode and a MIMO mode (i.e., a joint transmission mode of CA and MIMO) at the same time, so that the throughput of the terminal device is further improved is an urgent problem to be solved.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments.

Fig. 3 is a schematic flow chart of a method 200 of wireless communication according to an embodiment of the application, the method 200 being executable by a terminal device in the communication system shown in fig. 1, the method 200 comprising, as shown in fig. 3:

s210, the terminal equipment sends first information to the network equipment, wherein the first information is used for determining the maximum bandwidth limitation of the terminal equipment which simultaneously works in a carrier aggregation CA mode and a Multiple Input Multiple Output (MIMO) mode.

In some embodiments of the present application, the terminal device has a plurality of transmission links, and the maximum bandwidths supported by the plurality of transmission links are the same or different. The terminal device may operate in an uplink MIMO mode through the plurality of transmit chains.

In some embodiments of the present application, the terminal device has a plurality of receiving links, and the maximum bandwidths supported by the plurality of receiving links are the same or different. The terminal device may operate in a downlink MIMO mode through the plurality of reception links.

In some embodiments of the present application, the first information is used to directly indicate the maximum bandwidth limitation that the terminal device operates in the carrier aggregation CA mode and the MIMO mode simultaneously, or may indirectly indicate the maximum bandwidth limitation that the terminal device operates in the carrier aggregation CA mode and the MIMO mode simultaneously. That is, the content indicated by the first information may be used to calculate the maximum bandwidth limitation, and the indication mode of the first information is not limited in the present application.

Optionally, in some embodiments, the first information is used to determine a maximum bandwidth limit for the terminal device to operate in an uplink CA mode and an uplink MIMO mode simultaneously, and/or a maximum bandwidth limit for the terminal device to operate in a downlink CA mode and a downlink MIMO mode simultaneously.

For example, the first information may directly indicate or indirectly indicate a maximum bandwidth limitation for the terminal device to operate in an uplink CA mode and an uplink MIMO mode simultaneously.

For another example, the first information may directly indicate or indirectly indicate a maximum bandwidth limitation for the terminal device to operate in the downlink CA mode and the downlink MIMO mode simultaneously.

In some embodiments, the terminal device operates in an uplink CA mode and an uplink MIMO mode simultaneously, and in a downlink CA mode and a downlink MIMO mode simultaneously, respectively correspond to independent maximum bandwidth limits, which are respectively denoted as an uplink maximum bandwidth limit and a downlink maximum bandwidth limit.

As an example, the first information includes first maximum bandwidth information for indicating a maximum bandwidth limit for the terminal device to operate in an uplink CA mode and an uplink MIMO mode at the same time, and/or second maximum bandwidth information for indicating a maximum bandwidth limit for the terminal device to operate in a downlink CA mode and a downlink MIMO mode at the same time.

The terminal equipment reports the maximum bandwidth limit that the terminal equipment works in an uplink CA mode and an uplink MIMO mode at the same time and the maximum bandwidth limit that the terminal equipment works in a downlink CA mode and a downlink MIMO mode at the same time respectively, so that the network equipment can configure the uplink working mode of the terminal equipment according to the uplink maximum bandwidth limit and configure the downlink working mode of the terminal equipment according to the downlink maximum bandwidth limit, and finer control of the working mode of the terminal equipment can be realized.

Alternatively, the first maximum bandwidth information and the second maximum bandwidth information may be the same or different.

In some embodiments, the terminal device operates in both an uplink CA mode and an uplink MIMO mode and in both a downlink CA mode and a downlink MIMO mode corresponds to the same maximum bandwidth limit.

For example, the first information includes third maximum bandwidth information, and the maximum bandwidth limit for the terminal device to operate in the uplink CA mode and the uplink MIMO mode simultaneously and the maximum bandwidth limit for the terminal device to operate in the downlink CA mode and the downlink MIMO mode simultaneously are determined according to the third maximum bandwidth information.

It should be understood that, in the following, the indication manner of the maximum bandwidth limitation in the uplink CA mode and the uplink MIMO mode when the terminal device is simultaneously operated in the uplink CA mode and the downlink MIMO mode is described in conjunction with the specific embodiment, and the indication manner of the maximum bandwidth limitation in the downlink CA mode and the downlink MIMO mode when the terminal device is simultaneously operated in the uplink CA mode and the uplink MIMO mode is similar, which is not repeated herein for brevity.

In practical applications, the maximum supportable bandwidth of the terminal device is limited due to limitations of devices such as PA on the transmitting link of the terminal device, for example, some PA can support a maximum 200MHz bandwidth, and some PA can only support a maximum 100MHz. Thus, subject to the maximum bandwidth supportable on the transmit link, when the configured bandwidth of the network device exceeds the maximum bandwidth limit of a single link, the terminal device needs to employ multiple transmit links to achieve the configured bandwidth.

In connection with fig. 4 and 5, the relationship between the CA bandwidth and the maximum bandwidth limit of a single transmission link and the operation mode of the terminal device will be described, taking the terminal device having two transmission links, and the uplink CA being implemented by CC1 and CC2 as an example.

As shown in fig. 4, when the uplink CA bandwidth configured by the network does not exceed the maximum bandwidth limit of a single transmission path, the terminal device can support uplink CA by adopting one transmission path (including PA), and meanwhile, uplink MIMO dual-stream transmission can be implemented between two transmission paths of the terminal device, so that the terminal device can operate in both uplink CA mode and MIMO mode.

As shown in fig. 5, when the uplink CA bandwidth of the network configuration exceeds the maximum bandwidth limit of a single transmission path, the terminal needs to use two transmission paths (including PA) to support the uplink CA, and at this time, the terminal device cannot simultaneously implement uplink MIMO dual-stream transmission due to the number of transmission paths supported by the terminal device, so the terminal device can only operate in CA mode.

From the above analysis it can be seen whether a terminal device can support both uplink CA and uplink MIMO depends on the CA bandwidth configured by the network device and the maximum bandwidth supported by a single transmit link of the terminal device.

In the embodiment of the present application, the multiple carriers used for implementing the uplink CA may be continuous multiple carriers or discontinuous multiple carriers, and the CA bandwidth may be a difference between the highest frequency and the lowest frequency of all the carriers configured by the terminal device, or a difference between the highest frequency and the lowest frequency of all the carriers used for the uplink CA. For example, as shown in fig. 6, the terminal device is configured with n carriers, including CC1, CC2, … …, CCn with frequencies from high to low, where the CA bandwidth may be the difference between the frequencies of CC1 to CCn.

In order to enable the network device to perform proper configuration on the terminal device so that the terminal device can work in an uplink CA mode and an uplink MIMO mode at the same time, or in other words, a joint transmission mode of CA and MIMO is adopted, the terminal device can report the maximum bandwidth supported by a single transmitting link of the terminal device to the network device. For example, the first information may include a maximum bandwidth supported by a single transmit link of the terminal device.

As one example, the first information includes a maximum bandwidth supported by each of a plurality of transmit links of the terminal device.

As yet another example, the first information includes a maximum bandwidth supported by a first transmit link of a plurality of transmit links of the terminal device, wherein the first transmit link is a maximum widest minimum transmit link supported by the plurality of transmit links.

Alternatively, the maximum bandwidths supported by the multiple transmit links may be the same or different.

In some embodiments, the terminal device may report only one piece of maximum bandwidth information when the maximum bandwidths supported by the plurality of transmission links are the same, and may report the maximum bandwidth information of each transmission link when the maximum bandwidths supported by the plurality of transmission links are different, or may report only the minimum value of the maximum bandwidth information of the plurality of transmission links.

And under the condition that the network equipment receives the maximum bandwidth limitation reported by the terminal equipment, the network equipment can perform proper configuration according to the maximum bandwidth limitation and the working mode of the terminal equipment. For example, if the network device only needs to configure the terminal device to operate in the uplink CA mode and not to configure the terminal device to operate in the uplink MIMO mode, the network device may configure a CA bandwidth that exceeds the maximum bandwidth limit, or if the network device only needs to configure the terminal device to operate in the uplink MIMO mode or needs to configure the terminal device to operate in both the uplink CA mode and the uplink MIMO mode, the network device may not configure the CA bandwidth to exceed the maximum bandwidth limit.

In some embodiments, the first information may be sent to the network device by any uplink message or signaling, e.g., an uplink radio resource control (Radio Resource Control, RRC) message, uplink medium access control (Media Access Control, MAC) signaling, etc.

In some embodiments of the present application, the terminal device may also report the bandwidth value corresponding to the maximum bandwidth limitation directly, or may also report index information corresponding to the maximum bandwidth limitation, where the index information may be used to indicate the maximum bandwidth limitation, or the range corresponding to the maximum bandwidth limitation, and the indicating manner of the maximum bandwidth limitation is not specifically limited in the embodiments of the present application.

In some embodiments, the first information includes a CA bandwidth rank (CA bandwidth class) corresponding to the maximum bandwidth limit or a bandwidth value corresponding to the maximum bandwidth limit.

For example, when the uplink CA is a continuous CA in band, or when the plurality of carriers for the uplink CA are a plurality of carriers in band, the terminal device may report the CA bandwidth class corresponding to the maximum bandwidth limit, or may report the bandwidth value corresponding to the maximum bandwidth limit.

In some embodiments, the CA bandwidth level corresponding to the maximum bandwidth limit is a bandwidth range corresponding to a difference between a highest frequency and a lowest frequency in all configured in-band continuous carriers (or all carriers for uplink CA) on the terminal device, where the bandwidth value corresponding to the maximum bandwidth limit is a difference between a highest frequency and a lowest frequency of all configured continuous carriers on the terminal device.

Table 1 is an example of CA bandwidth levels, each CA bandwidth level corresponds to a corresponding bandwidth range (or referred to as an aggregate channel bandwidth range), the foregoing multiple preset bandwidth ranges may include the bandwidth ranges in table 1, and the terminal device may determine a bandwidth according to a difference between a highest frequency point and a lowest frequency point in multiple carriers corresponding to the uplink CA, further search the bandwidth range to which the bandwidth belongs in table 1, and then report the CA bandwidth level corresponding to the bandwidth range to the network device. Alternatively, the bandwidth value may be directly reported, for example, 50mhz,100mhz,150mhz, etc.

TABLE 1

CA Bandwidth class	Aggregating channel bandwidths	Number of consecutive carriers
A	BW _Channel ≤BW _Channel,max	1
B	20MHz≤BW _ChannelCA ≤100MHz	2
C	100MHz<BW _{Channel_CA} ≤2×BW _Channel,max	2
D	200MHz<BW _{Channel_CA} ≤3×BW _Channel,max	3
E	300MHz<BW _{Channel_CA} ≤4×BW _Channel,max	4
G	100MHz<BW _ChannelCA ≤150MHz	3
H	150MHz<BW _ChannelCA ≤200MHz	4
I	200MHz<BW _ChannelCA ≤250MHz	5
J	250MHz<BW _ChannelCA ≤300MHz	6
K	300MHz<BW _ChannelCA ≤350MHz	7
L	350MHz<BW _ChannelCA ≤400MHz	8
M	50MHz≤BW _ChannelCA ≤200MHz	3
N	80MHz≤BW _ChannelCA ≤300MHz	4
O	100MHz≤BW _ChannelCA ≤400MHz	5

In some embodiments of the present application, the first information includes a CA frequency interval level corresponding to the maximum bandwidth limit or a frequency interval value corresponding to the maximum bandwidth limit.

For example, when the uplink CA is an in-band discontinuous CA, or when the plurality of carriers for the uplink CA are a plurality of carriers that are in-band discontinuous, the terminal device may report the CA frequency interval level corresponding to the maximum bandwidth limit, or report the frequency interval value corresponding to the maximum bandwidth limit.

In some embodiments, the CA frequency interval level is a frequency interval range corresponding to a difference between a highest frequency and a lowest frequency of all configured in-band discontinuous carriers (or all carriers for uplink CA) on the terminal device in a plurality of preset frequency interval ranges, where the frequency interval value is a difference between a highest frequency and a lowest frequency of all configured in-band discontinuous carriers on the terminal device.

Table 2 is an example of a CA frequency interval class, each CA frequency interval class corresponds to a corresponding frequency interval range, the foregoing multiple frequency interval ranges may include the frequency interval ranges in table 2, and the terminal device may determine a frequency interval according to a difference between a highest frequency point and a lowest frequency point in multiple carriers corresponding to uplink CA, further search in table 2 for a frequency interval range to which the frequency interval belongs, and then report the CA frequency interval class corresponding to the frequency interval range to the network device. Alternatively, the frequency interval value may be directly reported, for example, 50mhz,100mhz,150mhz, etc.

TABLE 2

CA frequency interval class	Maximum allowable frequency interval
I	100MHz
II	200MHz
III	600MHz

In summary, the terminal device reports the maximum bandwidth limitation of the single link (or the maximum bandwidth capability of the single link), or the maximum bandwidth limitation operating in the CA mode and the MIMO mode (CA and MIMO joint transmission) (or the maximum bandwidth capability supported by the ca+mimo mode) at the same time, so that the network device may properly configure the terminal device according to the operation mode of the terminal device in combination with the maximum bandwidth limitation, for example, when the terminal device only needs to operate in the CA mode, the configured aggregate bandwidth may exceed the maximum bandwidth limitation, or when the terminal device needs to operate in the CA mode and the MIMO mode at the same time, the configured aggregate bandwidth does not exceed the maximum bandwidth limitation, which is beneficial to meeting the transmission requirements of different scenarios of the terminal device.

The method of wireless communication according to an embodiment of the present application is described above in detail from the perspective of the terminal device in conjunction with fig. 3 to 6, and the method of wireless communication according to another embodiment of the present application is described below in detail from the perspective of the network device in conjunction with fig. 7. It should be understood that the description on the network device side corresponds to the description on the terminal device side, and similar descriptions may be referred to above, and are not repeated here for avoiding repetition.

Fig. 7 is a schematic flow chart of a method 300 of wireless communication according to another embodiment of the present application, the method 300 being executable by a network device in the communication system shown in fig. 1, the method 300 comprising, as shown in fig. 7:

and S310, the network equipment receives first information sent by the terminal equipment, wherein the first information is used for determining the maximum bandwidth limitation of the terminal equipment in the carrier aggregation CA mode and the MIMO mode.

In some embodiments of the present application, the first information is used to determine a maximum bandwidth limitation that the terminal device operates in an uplink CA mode and an uplink MIMO mode simultaneously, and/or a maximum bandwidth limitation that the terminal device operates in a downlink CA mode and a downlink MIMO mode simultaneously.

In some embodiments of the present application, the first information includes first maximum bandwidth information and/or second maximum bandwidth information, where the first maximum bandwidth information is used to indicate a maximum bandwidth limitation that the terminal device operates in an uplink CA mode and an uplink MIMO mode at the same time, and the second maximum bandwidth information is used to indicate a maximum bandwidth limitation that the terminal device operates in a downlink CA mode and a downlink MIMO mode at the same time.

In some embodiments of the present application, the first information includes third maximum bandwidth information, and the maximum bandwidth limit for the terminal device to operate in the uplink CA mode and the uplink MIMO mode simultaneously and the maximum bandwidth limit for the terminal device to operate in the downlink CA mode and the downlink MIMO mode simultaneously are determined according to the third maximum bandwidth information.

In some embodiments of the application, the first information comprises a maximum bandwidth supported by a single transmit link of the terminal device.

In some embodiments of the application, the first information comprises a maximum bandwidth supported by each of a plurality of transmit links of the terminal device.

In some embodiments of the present application, the first information includes a maximum bandwidth supported by a first transmission link among a plurality of transmission links of the terminal device, where the first transmission link is a maximum, and minimum transmission link supported by the plurality of transmission links.

In some embodiments of the present application, the first information includes a CA bandwidth level corresponding to the maximum bandwidth limit or a bandwidth value corresponding to the maximum bandwidth limit.

In some embodiments of the present application, the CA bandwidth class corresponding to the maximum bandwidth limitation is a bandwidth range corresponding to a difference value between a highest frequency and a lowest frequency of all configured in-band continuous carriers on the terminal device in a plurality of preset bandwidth ranges, and the bandwidth value corresponding to the maximum bandwidth limitation is a difference value between a highest frequency and a lowest frequency of all configured in-band continuous carriers on the terminal device.

In some embodiments of the present application, the CA frequency interval level is a frequency interval range corresponding to a difference value between a highest frequency and a lowest frequency of all configured in-band discontinuous carriers on the terminal device in a plurality of preset frequency interval ranges, where the frequency interval value is a difference value between a highest frequency and a lowest frequency of all configured in-band discontinuous carriers on the terminal device.

In some embodiments of the application, the first information is sent by radio resource control, RRC, signaling.

In some embodiments of the present application, the method 300 further comprises:

and if the network equipment configures the terminal equipment to work in the CA mode and the MIMO mode simultaneously, the maximum aggregate bandwidth of the terminal equipment configured by the network equipment does not exceed the maximum bandwidth limit.

The method embodiments of the present application are described in detail above with reference to fig. 3 to 7, and the apparatus embodiments of the present application are described in detail below with reference to fig. 8 to 12, it being understood that the apparatus embodiments and the method embodiments correspond to each other, and similar descriptions may refer to the method embodiments.

Fig. 8 shows a schematic block diagram of a terminal device 400 according to an embodiment of the application. As shown in fig. 8, the terminal apparatus 400 includes:

and the communication unit is used for sending first information to the network equipment, wherein the first information is used for determining the maximum bandwidth limitation of the terminal equipment which simultaneously works in the carrier aggregation CA mode and the Multiple Input Multiple Output (MIMO) mode.

Alternatively, in some embodiments, the communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 3, and are not described herein for brevity.

Fig. 9 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 of fig. 9 includes:

a communication unit 510, configured to receive first information sent by a terminal device, where the first information is used to determine a maximum bandwidth limitation for the terminal device to operate in a carrier aggregation CA mode and a multiple input multiple output MIMO mode simultaneously.

In some embodiments of the present application, the network device 500 further includes:

and the processing unit is used for configuring the CA bandwidth which does not exceed the maximum bandwidth limit for the terminal equipment under the condition that the network equipment configures the terminal equipment to work in the CA mode and the MIMO mode simultaneously.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 500 are respectively for implementing the corresponding flow of the network device in the method 300 shown in fig. 7, which is not described herein for brevity.

Therefore, in the embodiment of the present application, the terminal device reports the maximum bandwidth limitation of the single link (or the maximum bandwidth capability of the single link), or the maximum bandwidth limitation operating in the CA mode and the MIMO mode (or the maximum bandwidth capability supported by the ca+mimo mode) at the same time, so that the network device can properly configure the terminal device according to the operation mode of the terminal device in combination with the maximum bandwidth limitation, for example, when the terminal device only needs to operate in the CA mode, the configured aggregate bandwidth may exceed the maximum bandwidth limitation, or when the terminal device needs to operate in the CA mode and the MIMO mode at the same time, the configured aggregate bandwidth does not exceed the maximum bandwidth limitation, which is beneficial to meeting the transmission requirements of different scenarios of the terminal device.

Fig. 10 is a schematic block diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in fig. 10 comprises a processor 610, from which the processor 610 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 10, the communication device 600 may further comprise a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the method in an embodiment of the application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, as shown in fig. 10, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 630 may include a transmitter and a receiver, among others. Transceiver 630 may further include antennas, the number of which may be one or more.

Optionally, the communication device 600 may be specifically a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method according to the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 600 may be specifically a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 600 may implement corresponding processes implemented by the mobile terminal/terminal device in each method according to the embodiment of the present application, which are not described herein for brevity.

Fig. 11 is a schematic structural view of a chip of an embodiment of the present application. The chip 700 shown in fig. 11 includes a processor 710, and the processor 710 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 11, chip 700 may also include memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the method in an embodiment of the application.

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

Optionally, the chip 700 may also include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 12 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in fig. 12, the communication system 900 includes a terminal device 910 and a network device 920.

The terminal device 910 may be configured to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 may be configured to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication adapted for use with a terminal device having a plurality of transmit links and/or a plurality of receive links, the method comprising:

the terminal device sends first information to the network device, wherein the first information is used for determining the maximum bandwidth limitation of the terminal device working in a carrier aggregation CA mode and a multiple input multiple output MIMO mode simultaneously.
The method according to claim 1, wherein the first information is used to determine a maximum bandwidth limit for the terminal device to operate in both an uplink CA mode and an uplink MIMO mode, and/or a maximum bandwidth limit for the terminal device to operate in both a downlink CA mode and a downlink MIMO mode.
The method according to claim 2, wherein the first information comprises a first maximum bandwidth information and/or a second maximum bandwidth information, the first maximum bandwidth information being used for indicating a maximum bandwidth limitation that the terminal device is simultaneously operating in an uplink CA mode and an uplink MIMO mode, and the second maximum bandwidth information being used for indicating a maximum bandwidth limitation that the terminal device is simultaneously operating in a downlink CA mode and a downlink MIMO mode.
The method according to claim 2, wherein the first information includes third maximum bandwidth information, and the maximum bandwidth limit for the terminal device to operate in both the uplink CA mode and the uplink MIMO mode and the maximum bandwidth limit for the terminal device to operate in both the downlink CA mode and the downlink MIMO mode are determined based on the third maximum bandwidth information.
The method according to any of claims 1-4, wherein the first information comprises a maximum bandwidth supported by a single transmit link of the terminal device.
The method of claim 5, wherein the first information comprises a maximum bandwidth supported by a first transmit link of a plurality of transmit links of the terminal device, wherein the first transmit link is a maximum widest minimum transmit link supported by the plurality of transmit links.
The method according to any of claims 1-4, wherein the first information comprises a maximum bandwidth supported by each of a plurality of transmit links of the terminal device.
The method according to any of claims 1-7, wherein the first information comprises a CA bandwidth class corresponding to the maximum bandwidth limit or a bandwidth value corresponding to the maximum bandwidth limit.
The method according to claim 8, wherein the CA bandwidth class corresponding to the maximum bandwidth limit is a bandwidth range corresponding to a difference between a highest frequency and a lowest frequency of all the configured in-band continuous carriers on the terminal device, among a plurality of preset bandwidth ranges, and the bandwidth value corresponding to the maximum bandwidth limit is a difference between a highest frequency and a lowest frequency of all the configured in-band continuous carriers on the terminal device.
The method according to any of claims 1-7, wherein the first information comprises a CA frequency interval level corresponding to the maximum bandwidth limit or a frequency interval value corresponding to the maximum bandwidth limit.
The method of claim 10, wherein the CA frequency interval level is a frequency interval range corresponding to a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device among a plurality of preset frequency interval ranges, and the frequency interval value is a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device.
The method according to any of claims 1-11, wherein the first information is sent by radio resource control, RRC, signaling.
A method of wireless communication, the method comprising:

the network device receives first information sent by the terminal device, wherein the first information is used for determining the maximum bandwidth limitation of the terminal device working in a carrier aggregation CA mode and a multiple input multiple output MIMO mode at the same time.
The method according to claim 13, wherein the first information is used to determine a maximum bandwidth limit for the terminal device to operate in both an uplink CA mode and an uplink MIMO mode, and/or a maximum bandwidth limit for the terminal device to operate in both a downlink CA mode and a downlink MIMO mode.
The method according to claim 14, wherein the first information comprises a first maximum bandwidth information and/or a second maximum bandwidth information, the first maximum bandwidth information being used for indicating a maximum bandwidth limitation that the terminal device is simultaneously operating in an uplink CA mode and an uplink MIMO mode, and the second maximum bandwidth information being used for indicating a maximum bandwidth limitation that the terminal device is simultaneously operating in a downlink CA mode and a downlink MIMO mode.
The method of claim 14, wherein the first information includes third maximum bandwidth information, and wherein the maximum bandwidth limit for the terminal device to operate in both an uplink CA mode and an uplink MIMO mode and the maximum bandwidth limit for the terminal device to operate in both a downlink CA mode and a downlink MIMO mode are determined based on the third maximum bandwidth information.
The method according to any of claims 13-16, wherein the first information comprises a maximum bandwidth supported by a single transmit link of the terminal device.
The method of claim 17, wherein the first information comprises a maximum bandwidth supported by a first transmit link of a plurality of transmit links of the terminal device, wherein the first transmit link is a maximum widest minimum transmit link supported by the plurality of transmit links.
The method according to any of claims 13-16, wherein the first information comprises a maximum bandwidth supported by each of a plurality of transmit links of the terminal device.
The method according to any of claims 13-19, wherein the first information comprises a CA bandwidth class corresponding to the maximum bandwidth limit or a bandwidth value corresponding to the maximum bandwidth limit.
The method of claim 20, wherein the CA bandwidth class corresponding to the maximum bandwidth limit is a bandwidth range corresponding to a difference between a highest frequency and a lowest frequency of all the configured in-band contiguous carriers on the terminal device among a plurality of preset bandwidth ranges, and the bandwidth value corresponding to the maximum bandwidth limit is a difference between a highest frequency and a lowest frequency of all the configured contiguous carriers on the terminal device.
The method according to any of claims 13-19, wherein the first information comprises a CA frequency interval level corresponding to the maximum bandwidth limit or a frequency interval value corresponding to the maximum bandwidth limit.
The method of claim 22, wherein the CA frequency interval level is a frequency interval range corresponding to a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device among a plurality of preset frequency interval ranges, and the frequency interval value is a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device.
The method according to any of claims 13-23, wherein the first information is sent by radio resource control, RRC, signaling.
The method according to any one of claims 13-24, further comprising:

and if the network equipment configures the terminal equipment to work in the CA mode and the MIMO mode simultaneously, the network equipment configures the CA bandwidth which does not exceed the maximum bandwidth limit for the terminal equipment.
A terminal device, characterized in that the terminal device has a plurality of transmit links and/or a plurality of receive links, comprising:

And the communication unit is used for sending first information to the network equipment, wherein the first information is used for determining the maximum bandwidth limitation of the terminal equipment which simultaneously works in the carrier aggregation CA mode and the Multiple Input Multiple Output (MIMO) mode.
The terminal device according to claim 26, wherein the first information is used to determine a maximum bandwidth limit for the terminal device to operate in both an uplink CA mode and an uplink MIMO mode, and/or a maximum bandwidth limit for the terminal device to operate in both a downlink CA mode and a downlink MIMO mode.
The terminal device according to claim 27, wherein the first information includes first maximum bandwidth information for indicating a maximum bandwidth limit for the terminal device to operate in an uplink CA mode and an uplink MIMO mode simultaneously, and/or second maximum bandwidth information for indicating a maximum bandwidth limit for the terminal device to operate in a downlink CA mode and a downlink MIMO mode simultaneously.
The terminal device of claim 27, wherein the first information includes third maximum bandwidth information, and wherein a maximum bandwidth limit for the terminal device to operate in both an uplink CA mode and an uplink MIMO mode and a maximum bandwidth limit for the terminal device to operate in both a downlink CA mode and a downlink MIMO mode are determined based on the third maximum bandwidth information.
The terminal device according to any of claims 26-29, wherein the first information comprises a maximum bandwidth supported by a single transmit link of the terminal device.
The terminal device of claim 30, wherein the first information comprises a maximum bandwidth supported by a first transmit link of a plurality of transmit links of the terminal device, wherein the first transmit link is a maximum widest minimum transmit link supported by the plurality of transmit links.
The terminal device of any of claims 26-29, wherein the first information comprises a maximum bandwidth supported by each of a plurality of transmit links of the terminal device.
The terminal device according to any of claims 26-32, wherein the first information comprises a CA bandwidth class corresponding to the maximum bandwidth limit or a bandwidth value corresponding to the maximum bandwidth limit.
The terminal device of claim 33, wherein the CA bandwidth class corresponding to the maximum bandwidth limit is a bandwidth range corresponding to a difference between a highest frequency and a lowest frequency of all the configured in-band contiguous carriers on the terminal device among a plurality of preset bandwidth ranges, and the bandwidth value corresponding to the maximum bandwidth limit is a difference between a highest frequency and a lowest frequency of all the configured contiguous carriers on the terminal device.
The terminal device according to any of claims 26-32, wherein the first information comprises a CA frequency interval level corresponding to the maximum bandwidth limit or a frequency interval value corresponding to the maximum bandwidth limit.
The terminal device of claim 35, wherein the CA frequency interval level is a frequency interval range corresponding to a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device among a plurality of preset frequency interval ranges, and the frequency interval value is a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device.
The terminal device according to any of the claims 26-36, characterized in that the first information is sent by radio resource control, RRC, signalling.
A network device, comprising:

and the communication unit is used for receiving first information sent by the terminal equipment, wherein the first information is used for determining the maximum bandwidth limitation of the terminal equipment in the carrier aggregation CA mode and the Multiple Input Multiple Output (MIMO) mode.
The network device according to claim 38, wherein the first information is used to determine a maximum bandwidth limit for the terminal device to operate in both an uplink CA mode and an uplink MIMO mode, and/or a maximum bandwidth limit for the terminal device to operate in both a downlink CA mode and a downlink MIMO mode.
The network device of claim 39, wherein the first information includes first maximum bandwidth information for indicating a maximum bandwidth limit for the terminal device to operate in an uplink CA mode and an uplink MIMO mode simultaneously, and/or second maximum bandwidth information for indicating a maximum bandwidth limit for the terminal device to operate in a downlink CA mode and a downlink MIMO mode simultaneously.
The network device of claim 39, wherein the first information includes third maximum bandwidth information, and wherein a maximum bandwidth limit for the terminal device to operate in both an uplink CA mode and an uplink MIMO mode and a maximum bandwidth limit for the terminal device to operate in both a downlink CA mode and a downlink MIMO mode are determined based on the third maximum bandwidth information.
The network device of any of claims 38-41, wherein the first information comprises a maximum bandwidth supported by a single transmit link of the terminal device.
The network device of claim 42, wherein the first information comprises a maximum bandwidth supported by a first transmit link of a plurality of transmit links of the terminal device, wherein the first transmit link is a maximum widest minimum transmit link supported by the plurality of transmit links.
The network device of any of claims 38-41, wherein the first information comprises a maximum bandwidth supported by each of a plurality of transmit links of the terminal device.
The network device of any of claims 38-44, wherein the first information comprises a CA bandwidth class corresponding to the maximum bandwidth limit or a bandwidth value corresponding to the maximum bandwidth limit.
The network device of claim 45, wherein the CA bandwidth class corresponding to the maximum bandwidth limit is a bandwidth range corresponding to a difference between a highest frequency and a lowest frequency of all the contiguous carriers configured on the terminal device among a plurality of preset bandwidth ranges, and the bandwidth value corresponding to the maximum bandwidth limit is a difference between a highest frequency and a lowest frequency of all the contiguous carriers configured on the terminal device.
The network device of any one of claims 38-44, wherein the first information includes a CA frequency interval level corresponding to the maximum bandwidth limit or a frequency interval value corresponding to the maximum bandwidth limit.
The network device of claim 47, wherein the CA frequency interval level is a frequency interval range corresponding to a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device among a plurality of preset frequency interval ranges, and the frequency interval value is a difference between a highest frequency and a lowest frequency of all configured in-band non-contiguous carriers on the terminal device.
The network device of any of claims 38-48, wherein the first information is sent by radio resource control, RRC, signaling.
The network device of any one of claims 38-49, wherein the network device further comprises:

and the processing unit is used for configuring the CA bandwidth which does not exceed the maximum bandwidth limit for the terminal equipment under the condition that the network equipment configures the terminal equipment to work in the CA mode and the MIMO mode simultaneously.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method according to any of claims 1 to 12.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 12.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 12.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 12.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 12.
A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 13 to 25.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 13 to 25.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 13 to 25.
A computer program product comprising computer program instructions which cause a computer to perform the method of any of claims 13 to 25.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 13 to 25.