WO2020029298A1

WO2020029298A1 - Method, device and system for carrier aggregation

Info

Publication number: WO2020029298A1
Application number: PCT/CN2018/100093
Authority: WO
Inventors: 张茜; 黎超; 邓猛; 柴洪林
Original assignee: 华为技术有限公司
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2020-02-13
Also published as: CN111615816A; CN111615816B

Abstract

Disclosed by embodiments of the present application are a method, device and system for carrier aggregation. The method for carrier aggregation comprises: a terminal receiving a first message corresponding to a first member carrier and a second message corresponding to a second member carrier from a wireless network device, the first message comprising carrier offset information, sub-carrier interval information and carrier bandwidth information of the first member carrier, wherein the carrier bandwidth information of the first member carrier is used to indicate the maximum transmission bandwidth configuration of the first member carrier; receiving the second message corresponding to the second member carrier, the second message comprising carrier offset information, sub-carrier interval information and carrier bandwidth information of the second member carrier, wherein the carrier bandwidth information of the second member carrier is used to indicate the maximum transmission bandwidth configuration of the second member carrier; and determining a nominal channel spacing between the first member carrier and the second member carrier according to the first message and the second message. The solution provided by the embodiments of the present application may effectively improve the accuracy of determining nominal channel spacing, thereby improving the performance of the solution used for carrier aggregation or reducing the cost of the solution used for carrier aggregation.

Description

Method, device and system for carrier aggregation

Technical field

The present application relates to the field of communication technologies, and in particular, to a method, device, and system for carrier aggregation.

Background technique

The 4th generation (4G) communication system's Long Term Evolution Advanced (LTE-A) introduces Carrier Aggregation (CA) technology. Specifically, the CA technology aggregates multiple continuous or multiple non-continuous component carriers (Component Carriers, CCs) to support a larger transmission bandwidth, thereby increasing the data transmission rate.

Wherein, the CA can be divided into an intra-band CA and an inter-band CA according to whether the frequency bands of the component carriers of the CA are the same. In addition, according to whether the component carrier is discontinuous in frequency, the in-band CA can be further divided into in-band continuous CA and in-band non-contiguous CA. The component carriers of the inter-band CA are usually discontinuous. For in-band continuous CA, the communication device can be configured with the same RF receiving channel to receive multiple consecutive component carriers. For in-band discontinuous CA, communication equipment often needs to configure different radio frequency receiving channels to receive multiple discontinuous component carriers. Therefore, for the in-band CA, the standard protocol of the LTE-A system provides auxiliary instruction information for the communication device to determine whether it is an in-band continuous CA and configure a radio frequency receiving channel accordingly.

With the evolution of technology, mobile communication technology has gradually developed to a 5th generation (5G) communication system, such as a New Radio (NR) communication system. Compared with 4G systems, 5G systems are more complicated in technology. If the carrier aggregation related solutions of 4G systems are simply used, the technical solutions may not be implemented or the technical solution implementation effects are not good. Therefore, it is necessary to provide a new technical solution for carrier aggregation.

Summary of the invention

The embodiments of the present application provide a method, a device, and a system for carrier aggregation to improve the performance of a scheme for carrier aggregation or reduce the cost of a scheme for carrier aggregation.

It should be understood that, in the solution provided by the embodiment of the present application, a carrier or a component carrier is used to indicate a frequency range that complies with a system requirement. This frequency range can be determined by the center frequency of the carrier and the carrier bandwidth. Among them, the center frequency of the carrier and the value set of the carrier bandwidth are specified by the system standards or protocols. Unless specifically stated, the multiple carriers or component carriers in the embodiments of the present application refer to multiple different carriers or component carriers, that is, different frequency ranges.

In a first aspect, a method for carrier aggregation is provided. The method may be performed by a wireless communication device, which may be a terminal or a chip that can be set in the terminal. The chip may be a modem or a system chip (SoC). The carrier aggregation includes at least a first component carrier and a second component carrier, and the method includes:

Receiving a first message corresponding to the first component carrier, where the first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, wherein the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the first component carrier;

Receiving a second message corresponding to the second component carrier, where the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, where the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

Determining a nominal channel spacing between the first component carrier and the second component carrier according to the first message and the second message.

With reference to the technical solution provided in the first aspect, in an optional implementation manner, the determining a nominal channel distance between the first component carrier and the second component carrier includes: The maximum transmission bandwidth configuration of a component carrier determines the channel bandwidth of the first component carrier; the channel bandwidth of the second component carrier is determined according to the maximum transmission bandwidth configuration of the second component carrier; wherein the first component carrier The value unit of the channel bandwidth and the channel bandwidth of the second component carrier is megahertz (MHz).

With reference to the technical solution provided by the first aspect or the optional implementation manner described above, in an optional implementation manner, the method further includes: according to a standard between the first component carrier and the second component carrier. The channel spacing is called to determine whether the carrier aggregation of the first component carrier and the second component carrier is continuous carrier aggregation in a band.

On this basis, the method may further include: when it is determined that the carrier aggregation of the first component carrier and the second component carrier is continuous in-band carrier aggregation, configuring a first radio frequency channel, the first radio frequency channel is used for For processing (receiving or sending) a radio frequency signal of the first component carrier and a radio frequency signal of the second component carrier.

On this basis, the method may further include: when it is determined that the carrier aggregation of the first component carrier and the second component carrier is not an in-band continuous carrier aggregation, configuring a first radio frequency channel, and the first radio frequency channel is used for Configured to process (receive or send) the radio frequency signal of the first component carrier, configure a second radio frequency channel, and the second radio frequency channel is used to process (receive or send) the radio frequency signal of the second component carrier, wherein The first radio frequency channel is different from the second radio frequency channel.

In a second aspect, a wireless communication device for carrier aggregation is provided. The carrier aggregation includes at least a first component carrier and a second component carrier, and the wireless communication device includes:

A receiving unit, configured to receive a first message corresponding to the first component carrier, and receive a second message corresponding to the second component carrier; wherein the first message includes a carrier of the first component carrier Offset information, subcarrier interval information, and carrier bandwidth information, the carrier bandwidth information of the first component carrier is used to indicate a maximum transmission bandwidth configuration of the first component carrier, and the second message includes the second component carrier Carrier offset information, subcarrier interval information, and carrier bandwidth information, the carrier bandwidth information of the second component carrier is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

A processing unit, configured to determine a nominal channel spacing between the first component carrier and the second component carrier according to the first message and the second message.

It should be understood that the wireless communication device may be a terminal or a chip that can be set in the terminal. The chip may be a modem or a system chip. Accordingly, the receiving unit and the processing unit may be software program code for implementing the wireless communication device, for example, a software module for implementing a corresponding receiving or processing function of a software algorithm. Alternatively, the receiving unit and the processing unit may also be hardware circuits or devices that implement the wireless communication device. For example, the receiving unit may be a receiver, a receiving circuit, a transceiver, a transceiver, or a transceiver circuit of a terminal, or an input / output interface or an input / output circuit of a chip. The processing unit may be a general-purpose processor or a special-purpose processor of the terminal, or various operation or control cores such as a CPU core or a DSP core of a chip.

With reference to the technical solution provided in the second aspect above, in an optional implementation manner, the processing unit is configured to determine a nominal channel distance between the first component carrier and the second component carrier, including all The processing unit is specifically configured to determine a channel bandwidth of the first component carrier according to a maximum transmission bandwidth configuration of the first component carrier, and determine the second component carrier according to a maximum transmission bandwidth configuration of the second component carrier. The channel bandwidth of the first component carrier and the channel bandwidth of the second component carrier are in a unit of megahertz (MHz).

With reference to the technical solution provided in the second aspect or the optional implementation manner described above, in an optional implementation manner, the processing unit is further configured to: according to the relationship between the first component carrier and the second component carrier A nominal channel spacing of, to determine whether the carrier aggregation of the first component carrier and the second component carrier is an in-band continuous carrier aggregation.

On this basis, the processing unit may be further configured to: when it is determined that the carrier aggregation of the first component carrier and the second component carrier is continuous in-band carrier aggregation, configure a first radio frequency channel, and the first radio frequency channel And used to process (receive or send) a radio frequency signal of the first component carrier and a radio frequency signal corresponding to the second component carrier.

On this basis, the processing unit may be further configured to: when it is determined that the carrier aggregation of the first component carrier and the second component carrier is not an in-band continuous carrier aggregation, configure a first radio frequency channel, the first radio frequency channel Configured to process (receive or send) a radio frequency signal of the first component carrier, configure a second radio frequency channel, and the second radio frequency channel is used to process (receive or send) a radio frequency signal of the second component carrier, wherein, The first radio frequency channel is different from the second radio frequency channel.

In a third aspect, a method for carrier aggregation is provided. The method may be executed by a wireless communication device, and the wireless communication device may be a wireless network device (such as a base station) or a chip that can be set in the wireless network device. The chip may be a modem or a system chip. The carrier aggregation includes at least a first component carrier and a second component carrier, and the method includes:

Generating a first message corresponding to the first component carrier, where the first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, wherein the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the first component carrier;

Generating a second message corresponding to the second component carrier, where the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, where the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

Sending the first message and the second message to a terminal.

According to a fourth aspect, a wireless communication apparatus for carrier aggregation is provided, wherein the carrier aggregation includes at least a first component carrier and a second component carrier, and the apparatus includes:

A processing unit, configured to generate a first message corresponding to the first component carrier and generate a second message corresponding to the second component carrier; wherein the first message includes a carrier of the first component carrier Offset information, subcarrier interval information, and carrier bandwidth information, the carrier bandwidth information of the first component carrier is used to indicate a maximum transmission bandwidth configuration of the first component carrier, and the second message includes the second component carrier Carrier offset information, subcarrier interval information, and carrier bandwidth information, the carrier bandwidth information of the second component carrier is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

A sending unit, configured to send the first message and the second message to a terminal.

It should be understood that the wireless communication device may be a wireless network device (such as a base station) or a chip that can be set in the wireless network device. The chip may be a modem or a system chip. Accordingly, the sending unit and the processing unit may be software program code for implementing the wireless communication device, for example, a software module for implementing a corresponding sending or processing function of a software algorithm. Alternatively, the sending unit and the processing unit may also be hardware circuits or devices that implement the wireless communication device. For example, the sending unit may be a transmitter, a sending circuit, a transceiver, a transceiver, or a transceiver circuit of a terminal, or an input / output interface or an input / output circuit of a chip. The processing unit may be a general-purpose processor or a special-purpose processor of a wireless network device, or various operation or control cores such as a CPU core or a DSP core of a chip.

In combination with the technical solution provided by any one of the above aspects or any optional implementation manner, in an optional implementation manner, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier Equal to the number of resource blocks configured with the maximum transmission bandwidth of the first component carrier; the number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the resource blocks configured with the maximum transmission bandwidth of the second component carrier Number.

For example, when the subcarrier interval of the first component carrier is 15 kHz and the channel bandwidth is 10 MHz, the corresponding maximum transmission bandwidth configuration N _RB is 52 resource block RBs. In this optional implementation manner, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to 52 RBs. Therefore, the terminal can accurately determine that the channel bandwidth of the first component carrier is 10 MHz according to the carrier bandwidth information (52 RB) of the first component carrier.

In combination with the technical solution provided by any one of the above aspects or any optional implementation manner, in an optional implementation manner, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier Belongs to the first value interval, wherein the first value interval uniquely corresponds to the maximum transmission bandwidth configuration of the first component carrier; the number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to the second A value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier.

For example, when the subcarrier interval of the first component carrier is 15 kHz and the channel bandwidth is 10 MHz, the corresponding maximum transmission bandwidth configuration N _RB is 52 resource block RBs. In this optional implementation manner, the first value interval may include all or part of values between 26 and 52, as long as the first value interval is guaranteed to uniquely correspond to the maximum value of the first component carrier. Transmission bandwidth configuration. Therefore, the terminal can accurately determine that the channel bandwidth of the first component carrier is 10 MHz according to the carrier bandwidth information (for example, 28 RB or 50 RB) of the first component carrier.

In combination with the technical solution provided by any one of the above aspects or any optional implementation manner, in an optional implementation manner, the first message includes frequency information downlink of a first component carrier ( Frequency InfoDL) information element, the second message includes frequency information downlink information element of the second component carrier.

In combination with the technical solution provided by any one of the above aspects or any optional implementation manner, in an optional implementation manner, the first message includes frequency information uplink of the first component carrier ( Frequency InfoUL) information element, the second message includes frequency information uplink information element of the second component carrier.

In combination with the technical solution provided by any one of the above aspects or any optional implementation manner, in an optional implementation manner, the carrier bandwidth information of the first component carrier is carried on the first component Sub-carrier interval of a carrier, a carrier bandwidth field of a specific carrier information element (SCS-SpecificCarrier); the carrier bandwidth information of the second component carrier is carried on the carrier of the specific carrier information element of the sub-carrier interval of the second component carrier Bandwidth domain.

According to a fifth aspect, a terminal is provided, including: a processor, a memory, and a transceiver, wherein the processor is configured to execute instructions in the memory, so that the terminal implements the first aspect or any one of the The technical solution provided by the selected implementation.

According to a sixth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores program code, and when the program code is executed by a processor in a terminal, the implementation as in the first aspect or any one of the The technical solution provided by the selected implementation.

According to a seventh aspect, a computer program product is provided. When the program code included in the computer program product is executed by a processor in a terminal, the technical solution provided by the first aspect or any optional implementation manner is implemented.

In an eighth aspect, a wireless network device is provided, including:

A processor, a memory, and a transceiver, wherein the processor is configured to execute instructions in the memory, so that the wireless network device implements the technical solution provided by the third aspect or any optional implementation manner.

According to a ninth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores program code, and when the program code is executed by a processor in a wireless network device, the implementation as in the third aspect or any one Technical solutions provided by an alternative implementation.

According to a tenth aspect, a computer program product is provided. When the program code included in the computer program product is executed by a processor in a wireless network device, the technical solution provided in the third aspect or any optional implementation manner is implemented. .

According to an eleventh aspect, a wireless communication system is provided, including a wireless network device, and the wireless communication device provided by the second aspect or any optional implementation manner, or the terminal provided by the fifth aspect.

In a twelfth aspect, a wireless communication system is provided, including a terminal, and the wireless communication device provided in the fourth aspect or any optional implementation manner, or the terminal provided in the eighth aspect.

It should be understood that the nominal channel spacing between the first component carrier and the second component carrier may be used to determine whether the carrier aggregation of the first component carrier and the second component carrier is an in-band continuous carrier aggregation . Compared with the prior art, in the technical solution of the embodiment of the present application, the carrier bandwidth information of the first message is used to indicate the maximum transmission bandwidth configuration of the first component carrier, and the carrier bandwidth information of the second message is used. Indicating the maximum transmission bandwidth configuration of the first component carrier can effectively improve the accuracy of determining the nominal channel spacing, thereby improving the performance of the scheme for carrier aggregation or reducing the cost of the scheme for carrier aggregation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application;

2 is a schematic diagram of three possible carrier aggregation carrier configurations provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a channel configuration according to an embodiment of the present application; FIG.

4A is a schematic flowchart of a method for carrier aggregation provided by an embodiment of the present application;

4B is a schematic flowchart of a method for carrier aggregation provided by an embodiment of the present application;

5 is a schematic structural diagram of a wireless communication device for carrier aggregation provided by an embodiment of the present application;

6 is a schematic structural diagram of a wireless communication device for carrier aggregation provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a wireless communication device for carrier aggregation according to an embodiment of the present application.

FIG. 8 is a schematic structural diagram of a wireless communication device for carrier aggregation according to an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a wireless communication device for carrier aggregation according to an embodiment of the present application.

It should be understood that, in the above structural schematic diagram, the size and form of each block diagram are for reference only, and should not constitute an exclusive interpretation of the embodiments of the present invention. The relative positions and inclusion relationships between the various block diagrams presented in the structural schematic diagram are only for schematically representing the structural associations between the block diagrams, and are not intended to limit the physical connection manners of the embodiments of the present invention.

detailed description

The technical solutions provided in this application will be further described below with reference to the accompanying drawings and examples. It should be understood that the system structure and business scenarios provided in the embodiments of the present application are mainly for explaining possible implementations of the technical solution of the present application, and should not be interpreted as the only limitation on the technical solution of the present application. Those of ordinary skill in the art may know that with the evolution of the system structure and the emergence of new service scenarios, the technical solutions provided in this application are equally applicable to similar technical issues.

It should be understood that the solution for carrier aggregation provided in the embodiments of the present application includes a method, a device, and a system for carrier aggregation. Since the principles of these technical solutions to solve the problem are the same or similar, in the description of the following specific embodiments, some repetitions may not be repeated, but it should be considered that these specific embodiments already reference each other and can be combined with each other.

FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application. The wireless communication system may include a core network, an access network, and a terminal. In FIG. 1, only wireless network devices and terminals included in the access network are shown. As shown in FIG. 1, the wireless communication system 00 may include one or more wireless network devices 01 and one or more terminals 02. The wireless network device 01 can serve as both a transmitting end and a receiving end. Similarly, the terminal 02 can serve as both a receiving end and a transmitting end, which is not specifically limited in this application.

It should be understood that the wireless communication system 00 may serve as an example of a mobile communication system based on the 3rd Generation Partnership Project (3GPP) technical specifications, and may also cover wireless communication systems based on other wireless communication standards, such as electrical and electronic Institute of Engineers (Electrical and Electronics Engineers, IEEE) 802 series, such as 802.11, 802.15, 802.20 and other wireless communication standards.

Among them, the wireless network device 01 is a computing device having a wireless communication function. The wireless network device 01 may be a wireless access network device such as a base station. The base station may specifically be a Generic Node B (gNB) in a 5G mobile communication system, an Evolutional Node B (eNB or eNodeB) in a 4G mobile communication system, and a base station in other possible wireless access technologies . There can also be multiple physical forms and transmission powers of base stations, such as macro base stations or micro base stations.

The terminal 02 may also be referred to as a user equipment (UE), a mobile station (MS), or a subscriber unit (SU). The terminal 02 may specifically be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a wearable device (smart watch, smart bracelet, smart helmet, smart glasses, etc.), and other wireless devices Access-capable communication devices, such as various IoT devices, including smart home devices (smart meters, smart appliances, etc.), smart vehicles, etc.

The wireless communication system 00 can work on a variety of frequency bands, and is not limited to 5G systems, NR systems, M2M systems, etc., which will evolve in the future. It can be understood that the wireless communication system in FIG. 1 is only an exemplary implementation manner in the embodiment of the present application, and the wireless communication system in the embodiment of the present application includes, but is not limited to, the above wireless communication system 00.

According to the frequency band of the aggregated carrier, CA can be divided into in-band CA and inter-band CA. More specifically, the in-band CA is divided into an in-band continuous CA and an in-band non-continuous CA according to whether the component carriers are continuous.

FIG. 2 is a schematic diagram of three possible carrier aggregation carrier configurations provided by embodiments of the present application, including FIG. 2A, FIG. 2B, and FIG. 2C.

FIG. 2A is a schematic diagram of a component carrier structure of an in-band continuous CA according to an embodiment of the present application. As shown in FIG. 2A, the wireless communication device may configure multiple consecutive component carriers in the same frequency band, and the terminal may receive multiple consecutive component carriers in the same frequency band.

FIG. 2B is a schematic diagram of a component carrier structure of an in-band discontinuous CA provided by an embodiment of the present application. As shown in FIG. 2B, the wireless communication device may configure multiple discontinuous component carriers in the same frequency band, and the terminal may receive multiple discontinuous component carriers in the same frequency band.

FIG. 2C is a schematic diagram of a component carrier structure of an inter-band CA according to an embodiment of the present application. As shown in FIG. 2C, the wireless communication device may configure multiple component carriers in multiple frequency bands, and the terminal may receive multiple component carriers configured in multiple frequency bands. Among them, multiple frequency bands can be in the same frequency band, and multiple frequency bands can also be in different frequency bands.

2A, 2B, and 2C provide three examples of CAs according to the embodiments of the present application. There are many possible combinations of frequency bands and frequency ranges, and CA is supported. It is worth noting that the CA configuration in the embodiment of the present application includes, but is not limited to, the situation shown in the above figure.

FIG. 3 is a schematic diagram of a channel configuration according to an embodiment of the present application. As shown in FIG. 3, for a channel, the number of resource blocks (RB) corresponding to the channel bandwidth includes the number of RBs and protection bandwidth corresponding to the transmission bandwidth configuration. (guardband) corresponds to the number of RBs in two parts. Among them, the unit of transmission bandwidth configuration is the number of RBs, the units of channel bandwidth and protection bandwidth are MHz and kHz, respectively, and the minimum guard bandwidth is determined by the UE channel bandwidth and the subcarrier interval.

For a single UE, the UE may configure one or more carriers. For each component carrier in the CA, each component carrier has a separate UE channel bandwidth, which can also be referred to as the carrier channel bandwidth of the component carrier or the channel bandwidth of the component carrier. Similarly, The number of RBs included in the carrier channel bandwidth of each component carrier also includes the number of RBs included in the transmission bandwidth configuration and the number of RBs included in the protection bandwidth. The maximum transmission bandwidth configuration (maximum transmission bandwidth configuration) indicates the maximum number of RBs that the carrier can support or occupy, and is determined by the carrier channel bandwidth and the minimum protection bandwidth of the carrier. According to the existing protocol, for a channel in an NR system, for a component carrier, the wireless network device only delivers an unfixed carrier bandwidth, and the value of the carrier bandwidth is a positive integer not greater than the maximum transmission bandwidth configuration. In other words, the carrier bandwidth may be only a part of the actual physical channel bandwidth.

Different from 4G communication system using a single 15kHz subcarrier interval, 5G communication systems use multiple subcarrier intervals, and each channel can use a different subcarrier interval, such as: Physical Broadcast Channel (Physical Broadcast Channel (PBCH) uses one type of SCS, and the Physical Downlink Shared Channel (PDSCH) uses another type of SCS. In the 5G communication system, for each component carrier in the CA, in order to save power consumption, one or more Bandwidth Part (BWP) is allocated to a single component carrier. The terminal can choose to activate different BWPs according to service requirements . Each BWP may not only have different bandwidths and frequency points, but may also have different configurations (for example, subcarrier spacing, CP type) to meet different service requirements. For a single component carrier, the currently activated BWP bandwidth should be less than or equal to the carrier bandwidth of the component carrier.

In a 4G communication system, the nominal channel spacing and the actual channel spacing between the first component carrier and the second component carrier can be uniquely determined according to the channel bandwidth of the first component carrier. Specifically, for the in-band continuous carrier aggregation of the first component carrier and the second component carrier, the nominal channel spacing between the first component carrier and the second component carrier can be calculated by formula (1), formula (1) as follows:

Among them, BW _{Channel (1)} represents the channel bandwidth of the first component carrier, and BW _{Channel (2)} represents the channel bandwidth of the second component carrier. And the wireless network device directly indicates the channel bandwidth information of the first component carrier and the channel bandwidth information of the second component carrier. Therefore, when the terminal determines the channel bandwidth of the first component carrier and the The channel bandwidth can determine the nominal channel spacing between the first component carrier and the second component carrier.

In a 5G communication system, for a terminal, a wireless network device does not indicate the channel bandwidth information of the first component carrier and the channel bandwidth information of the second component carrier, and the terminal cannot directly or indirectly obtain the first component carrier. The specific size of the channel bandwidth and the specific size of the channel bandwidth of the second component carrier, therefore, the terminal cannot determine the nominal channel spacing between the first component carrier and the second component carrier by using formula (1). Further, according to the NR communication protocol TS 38.101-1, for the in-band continuous CA of the first component carrier and the second component carrier, the nominal channel spacing between the first component carrier and the second component carrier can be expressed by the following formula Calculations show that for a 100kHz channel raster NR operating band, the nominal channel spacing can be determined according to formula (2), which is as follows:

For the NR operating band of a 15 kHz channel grid, the nominal channel spacing can be determined according to formula (3), which is as follows:

Among them, n = max (μ ₁ , μ ₂ ), BW _{Channel (1)} represents the channel bandwidth of the first component carrier, BW _{Channel (2)} represents the channel bandwidth of the second component carrier, and GB _{Channel (1)} represents the first member The minimum protection bandwidth of the carrier. GB _{Channel (2)} represents the minimum protection bandwidth of the second component carrier, and μ ₁ and μ ₂ represent the subcarrier interval configurations of the first component carrier and the second component carrier, respectively.

In a 5G communication system, each component carrier supports a plurality of different subcarrier intervals, and the wireless network device only indicates the carrier bandwidth of the first component carrier for the corresponding subcarrier interval of the first component carrier and the carrier bandwidth for the first component carrier. For the terminal, the carrier bandwidth of the second component carrier corresponding to the subcarrier interval of the two component carriers cannot be determined directly by the terminal based on the above information, the channel bandwidth of the first component carrier, the minimum protection bandwidth, and the second component carrier. Channel bandwidth and minimum protection bandwidth. In addition, for the NR operating frequency band of the 15 kHz channel grid, the first component carrier and the second component carrier may both support multiple subcarrier intervals, that is, there are multiple configurations of the subcarrier interval, and the terminal cannot determine the calculation target. It is called a channel spacing, and a specific value of a subcarrier interval configuration of the first component carrier and a subcarrier of the second component carrier. At the same time, since the first component carrier and the second component carrier may both support multiple subcarrier intervals, the value of the center frequency of the corresponding carrier may be different for different subcarrier interval values, and the terminal cannot directly determine the location based on the above information. The actual channel spacing between the first component carrier and the second component carrier is described. For the above problem, if the terminal selects parameters directly for calculation, it may result in incorrect judgment of whether the first component carrier and the second component carrier are in-band continuous carriers. For example, For a component carrier and a second component carrier, the terminal miscalculates that the first component carrier and the second component carrier are discontinuous due to random selection of the parameters for calculation, and the terminal reports to the wireless network device, which reduces the probability of terminal communication success and increases Communication delay, or the terminal configures two radio frequency receiving channels to receive the first component carrier and the second component carrier respectively, which increases the hardware cost. Therefore, simply using the CA-related solution of the 4G system may cause the technical solution to be unimplementable or the technical solution implementation effect to be poor.

FIG. 4A is a schematic flowchart of a method for carrier aggregation provided by an embodiment of the present application. As shown in FIG. 4A, the carrier aggregation includes at least a first component carrier and a second component carrier, and a schematic flowchart of the method includes:

S401a. Receive a first message corresponding to the first component carrier, where the first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, where the first member Carrier bandwidth information of a carrier is used to indicate a maximum transmission bandwidth configuration of the first component carrier;

S402a. Receive a second message corresponding to the second component carrier, where the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, where the second member Carrier bandwidth information of a carrier is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

S403a. Determine a nominal channel spacing between the first component carrier and the second component carrier according to the first message and the second message.

FIG. 4B is a schematic flowchart of a method for carrier aggregation provided by an embodiment of the present application. As shown in FIG. 4B, the carrier aggregation includes at least a first component carrier and a second component carrier, and a schematic flowchart of the method includes:

S401b: Generate a first message corresponding to the first component carrier, where the first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, where the first member Carrier bandwidth information of a carrier is used to indicate a maximum transmission bandwidth configuration of the first component carrier;

S402b: Generate a second message corresponding to the second component carrier, where the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, where the second member Carrier bandwidth information of a carrier is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

S403b: Send the first message and the second message to a terminal.

In the above method provided by this embodiment, a terminal receives a message from a wireless network device, obtains carrier offset information, subcarrier interval information, and carrier bandwidth information corresponding to the first component carrier and the second component carrier, and determines a location based on the foregoing information. The nominal channel spacing between the first component carrier and the second component carrier is described to determine whether the corresponding component carrier is continuous, to improve the rationality of the resource configuration of the RF receiving channel, and to reduce the probability and delay of communication interruption.

Optionally, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the first component carrier; The indicated number of resource blocks is equal to the number of resource blocks configured for the maximum transmission bandwidth of the second component carrier.

In order to directly indicate the maximum transmission bandwidth configuration of the first component carrier by using the carrier bandwidth information of the first component carrier, the wireless network device determines the issued first component carrier according to the maximum transmission bandwidth configuration of the first component carrier. The carrier bandwidth information in a message is such that the number indicated by the carrier bandwidth of the first component carrier is equal to the maximum transmission bandwidth configuration of the first component carrier. Similarly, in order to directly indicate the maximum transmission bandwidth configuration of the second component carrier by using the carrier bandwidth information of the second component carrier, the wireless network device determines the delivered frequency according to the maximum transmission bandwidth configuration of the second component carrier. The carrier bandwidth information in the second message is that the number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the second component carrier.

Accordingly, the terminal may determine the maximum transmission bandwidth configuration of the first component carrier by using the carrier bandwidth information of the first message, that is, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the first The number of resource blocks configured for the maximum transmission bandwidth of a component carrier. Similarly, the terminal can determine the maximum transmission bandwidth configuration of the second component carrier through the carrier bandwidth information of the second message, that is, the number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the first The number of resource blocks configured for the maximum transmission bandwidth of the two component carriers.

In the above method provided in this embodiment, the carrier bandwidth information of a component carrier is used to directly indicate the maximum transmission bandwidth configuration value of the corresponding component carrier, which can further realize the calculation of the nominal channel spacing between each component carrier, and improve whether the terminal treats adjacent carriers. The accuracy of continuous judgment improves the rationality of the resource allocation of the RF receiving channel and reduces the probability and delay of communication interruption.

Optionally, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval, wherein the first value interval uniquely corresponds to a maximum transmission bandwidth configuration of the first component carrier The number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier.

It should be understood that the correspondence between the first value interval and the maximum transmission bandwidth configuration of the first component carrier may be a direct correspondence between the carrier bandwidth and the maximum transmission bandwidth configuration, or may be through other parameters (for example, The indirect correspondence relationship of the carrier channel bandwidth) may be a correspondence relationship (or mapping relationship) predetermined through a communication standard or a communication protocol, and the presented forms include, but are not limited to, the following forms: tables, functions, and the like. Similarly, the correspondence between the second value interval and the maximum transmission bandwidth configuration of the second component carrier may be a direct correspondence between the carrier bandwidth and the maximum transmission bandwidth configuration, or may be through other parameters (for example, the carrier channel The indirect correspondence relationship of bandwidth) may be a correspondence relationship (or mapping relationship) predetermined through a communication standard or a communication protocol, and the presented forms include, but are not limited to, the following forms: tables, functions, and the like.

In order to indicate the maximum transmission bandwidth configuration of the first component carrier by using the carrier bandwidth information of the first component carrier, the wireless network device is based on the maximum transmission bandwidth configuration of the first component carrier based on a correspondence relationship (for example, Carrier bandwidth information in the first message sent is determined through a look-up table or function calculation). That is, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to, and the maximum transmission bandwidth configuration of the first component carrier is based on a correspondence relationship (for example, the correspondence relationship between the carrier bandwidth and the maximum transmission bandwidth configuration). ) The first value interval determined. In order to indicate the maximum transmission bandwidth configuration of the second component carrier by using the carrier bandwidth information of the second component carrier, the wireless network device is based on the maximum transmission bandwidth configuration of the second component carrier based on a correspondence relationship (for example, Carrier bandwidth information in the second message sent is determined through a look-up table or function calculation). That is, the number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to, and the maximum transmission bandwidth configuration of the second component carrier is based on a correspondence relationship (for example, the correspondence relationship between the carrier bandwidth and the maximum transmission bandwidth configuration). ) The second value interval determined.

Correspondingly, the terminal can determine the maximum transmission bandwidth configuration of the first component carrier through the carrier bandwidth information of the first message, that is, determine the location of the first component carrier according to the number of RBs corresponding to the carrier bandwidth of the first component carrier. The value range is determined according to the corresponding relationship between the carrier bandwidth and the maximum transmission bandwidth configuration (for example, calculated by looking up a table or a function). Similarly, the terminal can determine the maximum transmission bandwidth configuration of the first component carrier by using the carrier bandwidth information of the second message, that is, determine the location of the first component carrier according to the number of RBs corresponding to the carrier bandwidth of the second component carrier. The value range is determined according to the corresponding relationship between the carrier bandwidth and the maximum transmission bandwidth configuration (for example, calculated by looking up a table or a function).

Table 1: Carrier channel bandwidth, subcarrier spacing, carrier bandwidth

For example, Table 1 shows the correspondence between the carrier channel bandwidth, carrier bandwidth, and subcarrier interval of each UE. The first row of the table represents the value of the carrier channel bandwidth. The first column of the table represents the value of the subcarrier interval. The carrier bandwidth in the table represents the value of the carrier bandwidth. The unit is the number of RBs. The maximum transmission bandwidth configuration is jointly determined according to the carrier channel bandwidth, the minimum protection bandwidth, and the subcarrier interval of each terminal.

According to Table 1 of the wireless network device, for the first component carrier with a subcarrier interval of 15 kHz and a carrier channel bandwidth of 15 MHz, the carrier bandwidth can be any integer from 53-79, so the carrier bandwidth information can indicate 58 Carrier.

Similarly, when the terminal receives the information element of the first component carrier and the information element of the second component carrier, for the first component carrier, the terminal obtains a group corresponding to the first component carrier The values of the subcarrier interval and carrier bandwidth are 15kHz and 10 RBs, and the other group of subcarrier intervals and carrier bandwidth are 30kHz and 38 RB. According to Table 1, it can be known that for the first component carrier, the values of the subcarrier interval and the carrier bandwidth are 15kHz and 10RB, and the channel bandwidth corresponding to the carrier is 5MHz. When the value is 30kHz and 38RB, the channel bandwidth corresponding to this carrier is 15MHz.

Further, optionally, the determining a nominal channel distance between the first component carrier and the second component carrier includes: determining the first component carrier according to a maximum transmission bandwidth configuration of the first component carrier. The channel bandwidth of the component carrier; determining the channel bandwidth of the second component carrier according to the maximum transmission bandwidth configuration of the second component carrier; wherein the channel bandwidth of the first component carrier and the channel bandwidth of the second component carrier The unit of value is megahertz MHz.

It should be understood that, according to the maximum transmission bandwidth configuration of the first component carrier determined in the foregoing steps, the terminal may determine a channel bandwidth of the first component carrier through a look-up table or a function calculation. The maximum transmission bandwidth configuration of the second component carrier is described, and the channel bandwidth of the second component carrier is determined through a table lookup or function calculation. Further, a nominal channel spacing between the first component carrier and the second component carrier is determined according to the channel bandwidth of the first component carrier and the channel bandwidth of the second component carrier (for example, calculated by looking up a table or a function) The calculation method of the nominal channel spacing may be predetermined by a communication standard or a communication protocol.

Further, optionally, the first message includes frequency information downlink information elements of the first component carrier, and the second message includes frequency information downlink information elements of the second component carrier.

Optionally, the first message includes frequency information uplink information elements of the first component carrier, and the second message includes frequency information uplink information elements of the second component carrier.

Further, optionally, the carrier bandwidth information of the first component carrier is carried in a carrier bandwidth domain of a specific carrier information element of a subcarrier interval of the first component carrier; the carrier bandwidth information of the second component carrier is carried in The subcarrier interval of the second component carrier is a carrier bandwidth domain of a specific carrier information element.

In a possible implementation manner, the first message is an SIB1 or an RRC message. For a wireless network device, the first message may be sent through an RMSI message, or may be sent through an RRC reconfiguration message. The specific information element can be Frequency, InfoDL, InformationElement, or FrequencyInfoInformationElement. For this information element, at least one set of carrier offset information, subcarrier interval information, and carrier bandwidth are configured for a component carrier. FrequencyInfoDLInformationElement can be used to indicate carrier information for downlink carrier aggregation, and FrequencyInfoInfoInformationElement can be used to indicate carrier information for uplink carrier aggregation.

Optionally, the second message is an SIB1 or RRC message. For a wireless network device, the second message may be sent through an RMSI message, or may be sent through an RRC reconfiguration message. The specific information element can be Frequency, InfoDL, InformationElement, or FrequencyInfoInformationElement. For this information element, at least one set of carrier offset information, subcarrier interval information, and carrier bandwidth are configured for a component carrier. FrequencyInfoDLInformationElement can be used to indicate carrier information for downlink carrier aggregation, and FrequencyInfoInfoInformationElement can be used to indicate carrier information for uplink carrier aggregation.

In the above method, by receiving a first message corresponding to the first component carrier and a second message corresponding to the second component carrier, obtaining carrier-related parameter information corresponding to the first carrier and carrier-related parameters of the second carrier. The information can realize the calculation of the nominal channel spacing between the component carriers, improve the accuracy of the terminal's continuous judgment of adjacent carriers, and reduce the probability and delay of communication interruption.

Further, optionally,

Determining the subcarrier interval configuration of the first component carrier according to the subcarrier interval information of the first component carrier, and the subcarrier interval configuration of the first component carrier is used to calculate a subcarrier interval between the first component carrier and the second component carrier. The nominal channel spacing between the channels; determining a second component carrier subcarrier interval configuration according to the subcarrier interval information of the second component carrier, and the second component carrier subcarrier interval configuration is used to calculate the first component carrier and the Describe the nominal channel spacing between the second members;

The subcarrier interval configuration of the first component carrier and the subcarrier interval configuration of the second component carrier are at least one or any combination of the following values: the subcarrier interval corresponding to the subcarrier interval of the first component carrier The maximum value in the configuration and the maximum value in the subcarrier interval configuration corresponding to the subcarrier interval of the second component carrier; the minimum value in the subcarrier interval configuration corresponding to the subcarrier interval of the first component carrier and the The minimum value in the subcarrier interval configuration corresponding to the subcarrier interval of the second component carrier; the subcarrier interval configuration corresponding to the currently activated BWP of the first component carrier and the corresponding BWP currently activated to the second component carrier Subcarrier interval configuration; the subcarrier interval configuration corresponding to the initial BWP configured by the first component carrier and the subcarrier interval configuration corresponding to the initial BWP configured by the first component carrier; the first component carrier The minimum value of the subcarrier interval configuration corresponding to the configured BWP and the minimum value of the subcarrier interval configuration corresponding to the configured BWP of the first component carrier ;

The sub-carrier interval configuration of the second component carrier is at least one or any combination of the following values: the maximum value in the sub-carrier interval configuration corresponding to the sub-carrier interval of the second component carrier; the second component carrier The minimum value of the subcarrier interval configuration corresponding to the subcarrier interval of the subcarrier interval; the subcarrier interval configuration corresponding to the currently activated BWP of the second component carrier; the subcarrier interval corresponding to the initial BWP configured of the second component carrier Configuration; the maximum value in the subcarrier interval configuration corresponding to the configured BWP of the second component carrier.

It should be understood that the sub-carrier spacing configuration of the first component carrier and the sub-carrier spacing configuration of the second component carrier may be used to confirm the calculation between the first component carrier and the second component carrier. The value of the corresponding subcarrier interval in the nominal channel spacing. For example, specifically, for a NR operating band of a 15 kHz channel grid, the subcarrier interval configuration of the first component carrier and the subcarrier interval configuration of the second component carrier correspond to μ ₁ and μ ₂ in formula (3). To confirm the value of n in formula (3), the value of the minimum protection bandwidth of the first component carrier, and the value of the minimum protection bandwidth of the second component carrier. The value of the minimum protection bandwidth of the first component carrier and the value of the minimum protection bandwidth of the second component carrier can be determined by looking up a table or a function calculation, which is predetermined by a communication standard or a communication protocol. The terminal determines the subcarrier interval configuration by using the subcarrier interval information of the first component carrier, so as to calculate a standard channel interval between the first component carrier and the second component carrier, thereby avoiding the problem caused by the subcarrier interval configuration. The calculation results caused by random selection are not uniform, which improves the accuracy of the terminal's continuous judgment of adjacent carriers, and reduces the probability and delay of communication interruption.

Further, optionally,

The first message further includes reference point absolute frequency point position information and frequency band information of the first component carrier, and the second message further includes reference point absolute frequency point position information and frequency band information of the second component carrier; Determining an actual channel distance between the first component carrier and the second component carrier according to the first message and the second message.

It should be understood that, according to the frequency band information of the first component carrier and the frequency band information of the second component carrier, the terminal can determine whether the first component carrier and the second component carrier are in-band carrier aggregation. The terminal may determine a corresponding central frequency point position of the first component carrier according to the absolute frequency point position of the reference point of the first component carrier, a carrier offset, and a subcarrier interval, and an absolute frequency point according to the reference point of the second component carrier. The position, the carrier offset, and the subcarrier interval may determine a corresponding center frequency point position of the second component carrier. The terminal determines an actual channel distance between the first component carrier and the second component carrier according to a corresponding center frequency point position of the first component carrier and a corresponding center frequency point position of the second component carrier.

Further, optionally,

Determining whether the carrier aggregation of the first component carrier and the second component carrier is an in-band continuous carrier aggregation according to a nominal channel spacing between the first component carrier and the second component carrier.

It should be understood that the subcarrier interval supported by the first component carrier may have multiple different values, and the subcarrier interval supported by the second component carrier may have multiple different values. Therefore, for the first component carrier and the second component carrier, the corresponding subcarrier interval values may have multiple different combinations. For each group of subcarrier interval values of the first component carrier and the second component carrier, there is one of the first component carrier and the second component carrier calculated corresponding to the group value. A nominal channel spacing between the two, and an actual channel spacing between the first component carrier and the second component carrier calculated corresponding to the set of values. Therefore, in order to improve the accuracy of judging whether the first component carrier and the second component carrier are in-band continuous carriers, a subcarrier interval is set for each group of the first component carrier and the second component carrier. Take a value, perform a nominal channel distance and an actual channel distance between the first component carrier and the second component carrier calculated according to the value of the group. Optionally, when the first component carrier and the second component carrier belong to the same frequency band, at least one group of subcarrier intervals of the first component carrier and the second component carrier exists, which satisfies the value If the nominal channel spacing between the first component carrier and the second component carrier is greater than or equal to the actual channel spacing between the first component carrier and the second component carrier, the terminal confirms that the first component carrier and the first component carrier The two component carriers are in-band continuous carriers; otherwise, the terminal confirms that the first component carrier and the second component carrier are not in-band continuous carriers. Optionally, when the first component carrier and the second component carrier belong to the same frequency band, the values of the subcarriers for all the first component carrier and the second component carrier satisfy the first If the nominal channel spacing between a component carrier and the second component carrier is greater than or equal to the actual channel spacing between the first component carrier and the second component carrier, the terminal confirms that the first component carrier and the second component carrier The component carrier is an in-band continuous carrier; otherwise, the terminal confirms that the first component carrier and the second component carrier are not in-band continuous carriers. In the above method, the nominal channel spacing and the actual channel of the first component carrier and the second component carrier are correspondingly obtained by combining the subcarrier intervals of different first component carriers and the second component carrier. The distance comparison further improves the accuracy of the terminal's continuous judgment of adjacent carriers, improves the accuracy of the terminal's continuous judgment of adjacent carriers, and reduces the probability and delay of communication interruption.

Further, optionally, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is continuous in-band carrier aggregation, a first radio frequency channel is configured, and the first radio frequency channel is configured to process the first radio frequency channel. A radio frequency signal of a component carrier and a radio frequency signal of the second component carrier.

It should be understood that, for the downlink, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is continuous carrier aggregation in band, the terminal only needs to configure one radio frequency channel for receiving the first The radio frequency signal of the component carrier and the radio frequency signal of the second component carrier further reasonably configure the resources of the radio frequency receiving channel, providing the possibility of reducing hardware costs and saving power consumption. For uplink, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is continuous in-band carrier aggregation, the terminal only needs to configure one radio frequency channel for transmitting radio frequency signals of the first component carrier And the second component carrier ’s radio frequency signal, the resources of the radio frequency receiving channel are further reasonably configured, which provides a possibility for reducing hardware cost and saves power consumption.

Optionally, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is not an in-band continuous carrier aggregation, a first radio frequency channel is configured, and the first radio frequency channel is used to process the first component carrier A second radio frequency channel configured for processing a radio frequency signal of the second component carrier, wherein the first radio frequency channel is different from the second radio frequency channel.

It should be understood that, for the downlink, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is not continuous in-band carrier aggregation, the terminal needs to configure two radio frequency channels for receiving the first It should be understood that the radio frequency signal of a component carrier and the radio frequency signal of the second component carrier are different from the second radio frequency channel. Based on the above method, the rationality of radio frequency resource allocation is improved and communication is reduced. Outage probability and communication delay. For the downlink, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is not an in-band continuous carrier aggregation, the terminal needs to configure two radio frequency channels for receiving radio frequencies of the first component carrier, respectively. It should be understood that the signal and the radio frequency signal of the second component carrier are different from the second radio frequency channel.

For uplink, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is not an in-band continuous carrier aggregation, the terminal needs to configure two radio frequency channels, which are respectively used to transmit the radio frequency of the first component carrier. Signal and the radio frequency signal of the second component carrier, it should be understood that the first radio frequency channel is different from the second radio frequency channel. Based on the above method, the rationality of radio frequency resource allocation is improved, the probability of communication interruption and communication are reduced. Delay. For the downlink, when it is determined that the carrier aggregation of the first component carrier and the second component carrier is not an in-band continuous carrier aggregation, the terminal needs to configure two radio frequency channels for transmitting radio frequencies of the first component carrier, respectively. It should be understood that the signal and the radio frequency signal of the second component carrier are different from the second radio frequency channel.

It should be understood that, in the embodiment of the present application, the configuration of the first radio frequency channel means that, optionally, one radio frequency channel is selected as the first radio frequency channel; optionally, parameter configuration of one radio frequency channel is used as the first radio frequency channel. A radio frequency channel; optionally, a radio frequency channel is selected as the first radio frequency channel and parameter configuration is performed. In the embodiment of the present application, the configuration of the second radio frequency channel means that, optionally, a radio frequency channel is selected as the second radio frequency channel; optionally, a radio frequency channel is configured with parameters as the second radio frequency channel; If it is selected, a radio frequency path is selected as the second radio frequency channel, and parameter configuration is performed.

Based on the above methods, the rationality of radio frequency resource allocation is improved, and the probability of communication interruption and communication delay are reduced.

FIG. 5 is a schematic structural diagram of a wireless network device for carrier aggregation according to an embodiment of the present application. As shown in FIG. 5, the wireless communication device 10 may be a device for carrier aggregation, and may be used as a receiver device for carrier aggregation. Here, it may also correspond to the wireless network device 01 or the terminal 02 in the wireless communication system 00 in FIG. 1. The carrier aggregation includes at least a first component carrier and a second component carrier. The wireless communication device 10 includes:

The receiving unit 110 is configured to receive a first message corresponding to the first component carrier, and receive a second message corresponding to the second component carrier; wherein the first message includes information about the first component carrier. Carrier offset information, subcarrier interval information, and carrier bandwidth information, the carrier bandwidth information of the first component carrier is used to indicate a maximum transmission bandwidth configuration of the first component carrier, and the second message includes the second component Carrier offset information of a carrier, subcarrier interval information, and carrier bandwidth information, and the carrier bandwidth information of the second component carrier is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

The processing unit 120 is configured to determine a nominal channel spacing between the first component carrier and the second component carrier according to the first message and the second message.

Optionally, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the first component carrier; The indicated number of resource blocks is equal to the number of resource blocks configured for the maximum transmission bandwidth of the second component carrier. The wireless communication device 10 may determine the maximum transmission bandwidth configuration value of the first component carrier through the carrier bandwidth information of the first component carrier received by the receiving unit 110, that is, the value indicated by the carrier bandwidth information of the first component carrier. The number of resource blocks is equal to the number of resource blocks configured for the maximum transmission bandwidth of the first component carrier. The maximum bandwidth of the second component carrier can be determined through the received carrier bandwidth information of the second component carrier received by the receiving unit 110. The value of the transmission bandwidth configuration is to make the number of resource blocks indicated by the carrier bandwidth information of the second component carrier equal to the number of resource blocks configured by the maximum transmission bandwidth of the second component carrier.

Optionally, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval, wherein the first value interval uniquely corresponds to a maximum transmission bandwidth configuration of the first component carrier The number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier. The wireless communication device 10 determines, by the processing unit 120, the first value interval to which the indicated number of resource blocks belongs to the carrier bandwidth information of the first component carrier received by the receiving unit 110, and then determines the first value The maximum transmission bandwidth configuration of the first component carrier corresponding to the value interval. Similarly, the wireless communication device 10 determines, through the processing unit 120, the carrier bandwidth information of the second component carrier received by the receiving unit 110, a second value interval to which the indicated number of resource blocks belongs, and further determines the The maximum transmission bandwidth configuration of the second component carrier corresponding to the second value interval.

Further, optionally, the processing unit 120 is configured to determine a nominal channel distance between the first component carrier and the second component carrier, and the processing unit 120 is specifically configured to:

Determining a channel bandwidth of the first component carrier according to a maximum transmission bandwidth configuration of the first component carrier;

Determining a channel bandwidth of the second component carrier according to a maximum transmission bandwidth configuration of the second component carrier;

The value unit of the channel bandwidth of the first component carrier and the channel bandwidth of the second component carrier is megahertz (MHz).

Further, optionally, the processing unit 120 is further configured to determine a carrier aggregation of the first component carrier and the second component carrier according to a nominal channel distance between the first component carrier and the second component carrier. Whether it is continuous in-band carrier aggregation.

Further, optionally, the processing unit 120 is further configured to: when it is determined that the carrier aggregation of the first component carrier and the second component carrier is an in-band continuous carrier aggregation, configure a first radio frequency channel, and the first radio frequency channel And configured to receive a radio frequency signal of the first component carrier and a radio frequency signal corresponding to the second component carrier. It should be understood that the configuration of the first radio frequency channel may be implemented by selecting a radio frequency channel or by configuring a radio frequency channel.

Optionally, the processing unit 120 is further configured to:

When it is determined that the carrier aggregation of the first component carrier and the second component carrier is not an in-band continuous carrier aggregation, a first radio frequency channel is configured, and the first radio frequency channel is used to receive a radio frequency signal of the first component carrier, A second radio frequency channel is configured to receive a radio frequency signal of the second component carrier, wherein the first radio frequency channel is different from the second radio frequency channel.

It should be understood that, in the embodiment of the present application, the configuration of the first radio frequency channel means that, optionally, a radio frequency path is selected as the first radio frequency channel by the processing unit 120; optionally, one radio frequency channel is processed by the processing unit 120. The radio frequency path is parameterized as the first radio frequency channel; optionally, a radio frequency path is selected as the first radio frequency channel by the processing unit 120 and parameter configuration is performed. The configuration of the second radio frequency channel means that, optionally, a radio frequency path is selected as the second radio frequency channel by the processing unit 120; optionally, a radio frequency path is parameterized by the processing unit 120 as the second radio frequency channel. Optionally, a radio frequency path is selected as the second radio frequency path by the processing unit 120, and parameter configuration is performed.

The wireless communication device 10 for carrier aggregation provided in the embodiment of the present application may correspond to a receiving end of the carrier aggregation, and may correspond to the wireless communication device or terminal in the foregoing method.

FIG. 6 is a schematic structural diagram of a wireless communication device for carrier aggregation according to an embodiment of the present application. As shown in FIG. 6, the wireless communication device 20 may be a device for carrier aggregation, and may be used as a receiver device for carrier aggregation. Here, it may correspond to the wireless network device 01 in the wireless communication system 00 in FIG. 1, and may also correspond to a chip, a circuit, or the like. Wherein, the carrier aggregation includes at least a first component carrier and a second component carrier, and the wireless communication device 20 includes:

The processing unit 210 is configured to generate a first message corresponding to the first component carrier and generate a second message corresponding to the second component carrier; wherein the first message includes the first component carrier Carrier offset information, subcarrier interval information, and carrier bandwidth information, the carrier bandwidth information of the first component carrier is used to indicate a maximum transmission bandwidth configuration of the first component carrier, and the second message includes the second component Carrier offset information of a carrier, subcarrier interval information, and carrier bandwidth information, and the carrier bandwidth information of the second component carrier is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

The sending unit 220 is configured to send the first message and the second message to a terminal.

Further, optionally, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the first component carrier; and the carrier bandwidth of the second component carrier The number of resource blocks indicated by the information is equal to the number of resource blocks configured for the maximum transmission bandwidth of the second component carrier. The wireless communication device 20 generates the carrier bandwidth information of the first component carrier according to the maximum transmission bandwidth configuration of the first component carrier through the processing unit 210, that is, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the The number of resource blocks configured for the maximum transmission bandwidth of the first component carrier is described. The processing unit 210 generates carrier bandwidth information of the second component carrier according to the maximum transmission bandwidth configuration of the second component carrier, that is, the number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the first component. The number of resource blocks configured for the maximum transmission bandwidth of the carrier.

Further, optionally, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval, wherein the first value interval uniquely corresponds to the maximum transmission of the first component carrier Bandwidth configuration; the number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier. The wireless communication device 20 determines the first value interval corresponding to the maximum transmission bandwidth configuration of the first component carrier according to the maximum transmission bandwidth configuration of the first component carrier through the processing unit 210, and then selects one of the first value intervals. A suitable value is used to generate the carrier bandwidth information of the first component carrier, that is, the number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval. The processing unit 210 determines a second value interval corresponding to the maximum transmission bandwidth configuration of the second component carrier according to the maximum transmission bandwidth configuration of the second component carrier, and then selects an appropriate value in the second value interval. For generating the carrier bandwidth information of the second component carrier, that is, the number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval.

FIG. 7 is a schematic structural diagram of a wireless communication device for carrier aggregation according to an embodiment of the present application. As shown in FIG. 7, the wireless communication device 30 may be a device for carrier aggregation, and may be used as a transmitter device for carrier aggregation or as a receiver device for carrier aggregation. Here, it may also correspond to the wireless network device 01 or the terminal 02 in the wireless communication system 00 in FIG. 1.

The apparatus may include a processor 310, a memory 320, a bus system 330, a receiver 340, and a transmitter 350. The processor 310, the memory 320, the receiver 340, and the transmitter 350 are connected through a bus system 330. The memory 320 is used to store instructions, and the processor 310 is used to execute the instructions stored in the memory 320 to control the receiver 340 to receive Signals, and control the transmitter 350 to send signals to complete the steps of the wireless communication device (such as a base station) or terminal in the above method. The receiver 340 and the transmitter 350 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers. The memory 320 may be integrated in the processor 310 or may be separately provided from the processor 310.

As an implementation manner, the functions of the receiver 340 and the transmitter 350 may be considered to be implemented by a transceiver circuit or a dedicated chip for transceiver. The processor 310 may be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.

As another implementation manner, a manner of using a general-purpose computer may be considered to implement the wireless communication apparatus provided by the embodiment of the present invention. The program code that is to implement the functions of the processor 310, the receiver 340, and the transmitter 350 is stored in a memory, and the general-purpose processor implements the functions of the processor 310, the receiver 340, and the transmitter 350 by executing the code in the memory.

FIG. 8 is a schematic structural diagram of a wireless communication device for carrier aggregation according to an embodiment of the present application. As shown in FIG. 8, the wireless communication device 40 includes an antenna module 410, a radio frequency subsystem 420 coupled to the antenna module 410, and a baseband subsystem 430 coupled to the radio frequency subsystem 420.

A possible implementation manner is that the baseband subsystem 430 is configured to generate a first message corresponding to the first component carrier, and generate a second message corresponding to the second component carrier, and use the first message and the first The baseband signals corresponding to the two messages are sent to the radio frequency subsystem 420. The radio frequency subsystem 420 includes two modules: a radio frequency front-end module 421 and a radio frequency transceiver module 442. The radio frequency subsystem 420 processes the baseband signals from the baseband subsystem 430 and converts them into radio frequency signals that can be transmitted through the antenna module 410. send. It should be understood that the antenna module 410 and the radio frequency subsystem 420 may jointly form a radio frequency transmission channel 440 or a radio frequency reception channel 450 for transmitting radio frequency signals.

The first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, and the carrier bandwidth information of the first component carrier is used to indicate a maximum value of the first component carrier. Transmission bandwidth configuration, the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, and the carrier bandwidth information of the second component carrier is used to indicate the second component carrier Maximum transmission bandwidth configuration.

Another possible implementation manner is that the antenna module 410 is configured to receive a first message corresponding to the first component carrier, and receive a second message corresponding to the second component carrier, using the first message and the second The form of the RF signal corresponding to the message is input to the RF subsystem 420, and the received signal is processed (for example, filtering, noise reduction, amplification, etc.) by the RF subsystem 420, and the RF signal is down-converted to a baseband signal for baseband The subsystem 430 performs processing. The radio frequency subsystem 420 includes two modules: a radio frequency front-end module 421 and a radio frequency transceiver module 442. It should be understood that the antenna module 410 and the radio frequency subsystem 420 may collectively form a radio frequency receiving channel 440 for receiving radio frequency signals. The baseband subsystem 430 is configured to determine a nominal channel distance between the first component carrier and the second component carrier according to the first message and the second message, and determine the first component carrier and the second component carrier. It is stated whether the second component carrier is an in-band continuous carrier. When the first component carrier and the second component carrier are in-band continuous carriers, the baseband subsystem is configured with a radio frequency channel for receiving radio frequency signals corresponding to the first component carrier and the second component carrier . When the first component carrier and the second component carrier are not in-band continuous carriers, the baseband subsystem is configured with two radio frequency channels for receiving radio frequency signals corresponding to the first component carrier and the second component carrier, respectively. The RF signal corresponding to the component carrier.

Another possible implementation manner is that the antenna module 410 is configured to receive a first message corresponding to the first component carrier, and receive a second message corresponding to the second component carrier, using the first message and the second The form of the RF signal corresponding to the message is input to the RF subsystem 420, and the received signal is processed (for example, filtering, noise reduction, amplification, etc.) by the RF subsystem 420, and the RF signal is down-converted to a baseband signal for baseband The subsystem 430 performs processing. The baseband subsystem 430 is configured to determine a nominal channel distance between the first component carrier and the second component carrier according to the first message and the second message, and determine the first component carrier and the second component carrier. It is stated whether the second component carrier is an in-band continuous carrier. When the first component carrier and the second component carrier are in-band continuous carriers, the baseband subsystem is configured with a radio frequency channel, and is input to the radio frequency subsystem 420 in the form of radio frequency signals corresponding to the first component carrier and the second component carrier. In the radio frequency subsystem 420, the baseband signal from the baseband subsystem 430 is processed, converted into a radio frequency signal that can be transmitted through the antenna module 410, and transmitted through the antenna module 410. When the first component carrier and the second component carrier are in-band continuous carriers, the baseband subsystem is configured with two radio frequency channels, and is input to the radio frequency subsystem in the form of radio frequency signals corresponding to the first component carrier and the second component carrier. In 420, the radio frequency subsystem 420 is configured to process the baseband signal from the baseband subsystem 430, convert it into a radio frequency signal that can be transmitted through the antenna module 410, and send it through the antenna module 410. It should be understood that the antenna module 410 and the radio frequency subsystem 420 may together form a radio frequency transmission channel 440 or a radio frequency reception channel 450 for receiving and transmitting radio frequency signals.

It should be understood that, in the embodiment of the present application, the RF transceiver module 442 may also be a RF receiving module or a RF receiving module, and may be integrated with the baseband subsystem 430 or / and the antenna module 410, or may be integrated with the baseband subsystem 430. Or it is provided separately from the antenna module 410.

FIG. 9 is a schematic structural diagram of a wireless communication device for carrier aggregation according to an embodiment of the present application. The wireless communication device is based on the wireless communication device shown in FIG. 8, and further introduces some optional implementations of the embodiments of the present application. The relevant details can refer to the foregoing description, and the repeated content will not be repeated.

As shown in FIG. 9, the wireless communication device 40 includes an antenna module 410, a radio frequency subsystem 420 coupled to the antenna module 410, a baseband subsystem 430 coupled to the radio frequency subsystem 420, and a first memory coupled to the baseband subsystem 430. 460. The wireless communication device 40 has multiple (k) RF receiving channels 440a to 440k, multiple (m) RF transmitting channels 450a to 450m, and multiple (m) RF transmitting channels 450a to 450k to support multiple Frequency band, carrier aggregation, MIMO transmission technology, etc. The baseband subsystem 430 includes a processor 431 and a second memory 432. The first memory 460 is coupled to a second memory 432 in the baseband subsystem 430.

The first memory 460 is a non-volatile memory (non-volatile memory), and the second memory 432 is a volatile memory (volatile memory) or a non-volatile memory. Specifically, the volatile memory refers to a memory in which the internally stored data is lost when the power supply is interrupted. At present, volatile memory is mainly random access memory (RAM), including static random access memory (static RAM, SRAM) and dynamic random access memory (dynamic RAM, DRAM). Non-volatile memory is memory that will not lose data stored internally even if the power supply is interrupted. Common non-volatile memory includes read-only memory (ROM), optical disks, magnetic disks, solid-state hard disks, and various memory cards based on flash memory technology.

Specifically, the first memory 460 may be used to store one or more instructions corresponding to the method (for example, FIG. 4A or FIG. 4B) provided in the embodiment of the present application. After the wireless communication device 40 is powered on, the code is loaded to The second memory 432 is executed by a processor.

A possible implementation manner is that, for the transmission of the first message, the second message, the first component carrier, and the second component carrier, the baseband subsystem 430 processes (for example, modulation, coding, etc.) ) The above-mentioned message and the above-mentioned component carrier are input into a selected radio frequency transmission channel in the form of a baseband signal, and then converted into a radio frequency signal to be transmitted, and transmitted through the antenna module 410. The following description is based on the assumption that the radio frequency transmission channel is a radio frequency transmission channel 450a, and the baseband signal is amplified, filtered, and converted from a baseband signal to a radio frequency signal by a transmission circuit 451a. The transmission circuit 451a may include a mixer, an amplifier , Filters, oscillators, phase-locked loops, matching circuits, etc. The power amplifier receives and amplifies the modulated radio frequency signal, and provides a radio frequency signal with a suitable amplified output power, which is sequentially transmitted through the output circuit 453a, the radio frequency front-end module 421, and the antenna module 410 for transmission. The output circuit 443a may include a matching circuit, a transmission filter, a directional coupler, and the like, and the radio frequency front-end module 421 may include an antenna switch, a duplexer, and the like.

Another possible implementation manner is that the antenna module 410 receives the first message and the second message, and inputs a radio frequency signal corresponding to the first message and the second message into a selected radio frequency receiving channel, It is further converted into a baseband signal for processing by the baseband subsystem 430. The following description is based on the assumption that one of the selected RF receiving channels is the RF receiving channel 440a, then the antenna module 410 receives the first message and the second message, and inputs the selected The radio frequency receiving channel 440a and the radio frequency front-end module 421 may include an antenna switch, a duplexer, a duplexer, and the like. For the radio frequency signal from the radio frequency front-end module 421, the input circuit 441a in the radio frequency receiving channel 440a is used for preprocessing (for example, filtering, etc.), and is provided as a radio frequency signal to the low-noise amplifier 442a. Matching circuit, receiving filter, etc. The low-noise amplifier 242a amplifies a received signal under the condition of introducing lower noise, and inputs the received signal to the receiving circuit 443a in the form of a radio frequency signal. The receiving circuit 443a amplifies, filters, and downconverts the radio frequency signal from the low-noise amplifier 442a to a baseband signal for processing and judgment by the baseband subsystem. The baseband subsystem 430 determines whether the first component carrier and the second component carrier are in-band continuous carriers according to the first message and the second message. For in-band continuous carriers, the baseband subsystem 430 will configure a radio frequency receiving channel to receive the first component carrier and the second component carrier. For non-in-band continuous carriers (including in-band non-continuous carriers and inter-band carriers), the baseband subsystem 430 will configure two radio frequency receiving channels for the first component carrier and the second component carrier. Receiving, each RF receiving channel receives one component carrier.

Another possible implementation manner is that the antenna module 410 receives the first message and the second message, and inputs a radio frequency signal corresponding to the first message and the second message into a selected radio frequency receiving channel, It is further converted into a baseband signal for processing by the baseband subsystem 430. The following description is based on the assumption that one of the selected RF receiving channels is the RF receiving channel 440a, then the antenna module 410 receives the first message and the second message, and inputs the selected The RF receiving channel 440a and the RF front-end module 421 may include an antenna switch, a duplexer, a combiner, and the like. For the radio frequency signal from the radio frequency front-end module 421, the input circuit 441a in the radio frequency receiving channel 440a is used for preprocessing (for example, filtering, etc.), and is provided as a radio frequency signal to the low noise amplifier 442a. Matching circuit, receiving filter, etc. The low-noise amplifier 242a amplifies a received signal under the condition of introducing lower noise, and inputs the received signal to the receiving circuit 443a in the form of a radio frequency signal. The receiving circuit 443a amplifies, filters, and downconverts the radio frequency signal from the low-noise amplifier 442a to a baseband signal for processing and judgment by the baseband subsystem. The baseband subsystem 430 determines whether the first component carrier and the second component carrier are in-band continuous carriers according to the first message and the second message. For in-band continuous carriers, the baseband subsystem 430 will configure a radio frequency receiving channel to send the first component carrier and the second component carrier. For non-in-band continuous carriers (including in-band non-continuous carriers and inter-band carriers), the baseband subsystem 430 will configure two radio frequency receiving channels for the first component carrier and the second component carrier. Send, each RF receiving channel sends a component carrier.

It should be understood that, in the embodiment of the present application, the radio frequency receiving channel may include an input circuit, a low-noise amplifier, and a receiving circuit, and may further include a radio frequency front-end module 421 and an antenna module 410. The radio frequency transmission channel may include an output circuit, a power amplifier, and a transmission circuit, and may further include a radio frequency front-end module 421 and an antenna module 410.

It should be understood that the processor 431 in the embodiment of the present application may implement the processing unit 120 in the wireless communication device 10 and the processing unit 220 in the wireless communication device 20 alone or in combination with other parts (for example, the first memory 460 and the second memory 432). And all functions of the processor 310 in the wireless communication device 30. The radio frequency receiving channel 440 in the embodiment of the present application may implement all of the receiving unit 110 in the wireless communication device 10 and the receiver 340 in the wireless communication device 30 alone or in combination with other parts (for example, the radio frequency front-end module 421 and the antenna module 410) Features. The radio frequency transmission channel 450 in the embodiment of the present application may implement all of the transmitting unit 210 in the wireless communication device 20 and the transmitter 350 in the wireless communication device 30 alone or in combination with other parts (for example, the radio frequency front-end module 421 and the antenna module 410). Features. The antenna module 410 in the embodiment of the present application may implement all of the receiving unit 110 in the wireless communication device 10 and the receiver 340 in the wireless communication device 30 alone or in combination with other parts (for example, the radio frequency front-end module 421 and the radio frequency receiving channel 440). Functions, or all functions of the transmitting unit 210 in the wireless communication device 20 and the transmitter 350 in the wireless communication device 30. The first memory 460 or the second memory 432 in the embodiment of the present application may implement the processing unit 120 in the wireless communication device 10, the processing unit 210 in the wireless communication device 20, and the memory 320 in the wireless communication device 30 alone or in combination with other parts. Full functionality.

It should be understood that each part of the devices in the embodiments of the present application may be integrated in one chip or integrated circuit, or may be correspondingly combined into different chips or circuits, or may form a complete machine (for example, a terminal, a base station, etc.), which all belong to the embodiments of the present application. Scope of protection.

To facilitate understanding, a CA of two component carriers is taken as an example to provide a possible process of a specific implementation manner. It should be understood that the values in the embodiments of the present application are only to help understand the content of the solution, and the actual values are not limited.

The wireless network device configures the terminal with a carrier aggregation having two component carriers, where the first component carrier is denoted as CC ₁ and the second component carrier is denoted as CC ₂ . Among them, CC _{1 has} a carrier offset of 2 RBs, a subcarrier interval of 30 kHz, and a carrier channel bandwidth of 15 MHz. CC _{2 has} a carrier offset of 0 RBs, a subcarrier interval of 30 kHz, and a carrier channel bandwidth of 15 MHz.

First, the wireless network device can determine the value of the maximum transmission bandwidth configuration under the corresponding structure of each component carrier according to the correspondence between the carrier channel bandwidth and the maximum transmission bandwidth configuration. The correspondence between the carrier channel bandwidth and the maximum transmission bandwidth configuration is a communication standard or Tables predefined in the communication protocol are shown in Table 2. It can be known from the CC ₁ look-up table that the corresponding maximum transmission bandwidth is configured to 38 RBs, and the carrier bandwidth issued at this time should be 38 RBs. It can be known from the CC ₂ look-up table that the corresponding maximum transmission bandwidth is configured as 52 RBs, and the carrier bandwidth issued at this time should be 52 RBs.

Therefore, the wireless network device sends the first message corresponding to CC ₁ to the terminal, and the specific form may be SCS-SpecificCarrier :: = SEQUENCE {2,30kHz, 38, ...}. The wireless network device sends a second message corresponding to CC ₂ to the terminal, and the specific form may be SCS-SpecificCarrier :: = SEQUENCE {0,15kHz, 52, ...}.

To facilitate the terminal determines the starting position of each component carrier, the radio communication apparatus also transmits information about the reference point of the absolute position in the frequency domain, the domain corresponding to the reference point location information to the CC ₁ is the absolute frequency of absoluteFrequencyPointA = 499185 ₂ and the corresponding CC The absolute frequency domain position information of the reference point is absoluteFrequencyPointA = 502065. To facilitate the terminal determines a frequency band of each component carrier, the radio communication apparatus also transmits a corresponding band information carrier belongs (e.g. Band41: 2495.925MHz and 2510.325MHz), corresponding to the frequency band information and the information of the band CC ₁ CC ₂ corresponding to, respectively band41, band41.

Table 2: Maximum transmission bandwidth configuration N _RB and subcarrier interval

The terminal receives the first message corresponding to CC ₁ from the wireless network device, and obtains a set of parameters corresponding to CC ₁ from the first message: the carrier offset is 2 RBs, and the subcarrier interval is 30 kHz. The carrier bandwidth is 38 RBs. Similarly, the second terminal receives a CC message corresponding to ₂ from a wireless network device is obtained from the message into a second set of parameter values corresponding to the CC _2, CC corresponding to a set of parameters values are ₂ : Carrier offset is 0 RBs, subcarrier spacing is 15kHz, and carrier bandwidth is 52 RBs.

According to the terminal following the first message corresponding to the CC ₁ and CC message ₂ is a second determined channel between the nominal and CC ₁ CC ₂ spacing. In order to determine the nominal channel spacing between CC ₁ and CC ₂ , it is necessary to first determine the maximum transmission bandwidth configuration of CC ₁ and CC ₂ , and then determine the carrier channel bandwidth of the corresponding component carrier.

For CC ₁ , when the subcarrier interval is set to 30kHz and the carrier bandwidth is set to 38 RBs, the maximum transmission bandwidth is configured to 38 RBs. According to the table, the corresponding carrier channel bandwidth is 15MHz. For CC ₂ , when the subcarrier interval is set to 15kHz and the carrier bandwidth is 52 RBs, the maximum transmission bandwidth is configured to 52 RBs. According to the table, the corresponding carrier channel bandwidth is 10MHz.

Further, in order to determine the channel CC ₁ and the nominal spacing between the ₂ CC, but also need to determine the minimum guard bandwidth of CC ₁ and CC _2. The terminal may determine the value of the minimum protection bandwidth under the corresponding structure of each component carrier according to the correspondence between the carrier channel bandwidth and the minimum protection bandwidth. The correspondence between the carrier channel bandwidth and the minimum protection bandwidth is a predefined table in a communication standard or communication protocol. (For example, Table 3). For CC ₁ , by looking up the table, the corresponding minimum protection bandwidth is 645kHz. For CC ₂ , it can be seen from the table that the corresponding minimum protection bandwidth is 312.5kHz.

Table 3: Channel bandwidth and subcarrier spacing of each UE (kHz)

Specifically, for a NR operating band of a 100 kHz channel grid, the nominal channel spacing between CC ₁ and CC ₂ is

For a 15kHz channel grid NR operating band, the nominal channel spacing between CC ₁ and CC ₂ is

Because the absolute frequency domain positions of the reference points obtained by the terminal for CC ₁ and CC ₂ are respectively: 2495.895 MHz and 2500.755 MHz. So the center frequency of CC ₁ and CC ₂

with

They are:

At this time, the actual channel spacing between CC ₁ and CC ₂ is 2515.005-2503.485 = 11.52 MHz. It is easy to know that the nominal channel spacing between CC ₁ and CC ₂ is greater than the actual channel spacing. Therefore, the terminal can determine that CC ₁ and CC ₂ are continuous carriers in band, and configure a radio frequency channel for reception.

The terms "first" and "second" in the embodiments of the present application and the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "including" and "having" and any of their variations are intended to mean a non-exclusive inclusion, for example, a series of steps or units. A method, system, product, or device is not necessarily limited to those steps or units that are listed literally, but may include other steps or units that are not listed directly or that are inherent to these processes, methods, products, or devices.

It should be understood that in the present application, "at least one" means one or more, and "multiple" means two or more. "And / or" is used to describe the association relationship between related objects, which means that there can be three kinds of relationships, for example, "A and / or B" can mean: only A, only B, and both A and B Where A and B can be singular or plural. The character "/" generally indicates that the related objects are an "or" relationship. "At least one or more of the following" or similar expressions means any combination of these items, including any combination of single or plural items. For example, at least one (a), a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c" ", Where a, b, and c can be single or multiple.

It should be understood that, in this application, the size of the serial numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any implementation process of the embodiments of this application. limited. The term "coupled" as used in this application is used to express the interconnection or interaction between different components, and may include direct connection or indirect connection through other components.

In the above embodiments of the present application, all or part of them may be implemented by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, etc.) or wireless (such as infrared, radio, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; an optical medium such as a DVD; or a semiconductor medium such as a solid state disk (Solid State Disk, SSD).

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for carrier aggregation, wherein the carrier aggregation includes at least a first component carrier and a second component carrier, wherein the method includes:

Receiving a first message corresponding to the first component carrier, where the first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, wherein the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the first component carrier;

Receiving a second message corresponding to the second component carrier, where the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, where the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

Determining a nominal channel spacing between the first component carrier and the second component carrier according to the first message and the second message.
The method according to claim 1, characterized in that:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the second component carrier.
The method according to claim 1, characterized in that:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval, wherein the first value interval uniquely corresponds to a maximum transmission bandwidth configuration of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier.
The method according to any one of claims 1 to 3, wherein:

The determining a nominal channel distance between the first component carrier and the second component carrier includes:

Determining a channel bandwidth of the first component carrier according to a maximum transmission bandwidth configuration of the first component carrier;

Determining a channel bandwidth of the second component carrier according to a maximum transmission bandwidth configuration of the second component carrier;

The value unit of the channel bandwidth of the first component carrier and the channel bandwidth of the second component carrier is megahertz (MHz).
The method according to any one of claims 1 to 4, characterized in that:

The first message includes frequency information downlink information elements of the first component carrier, and the second message includes frequency information downlink information elements of the second component carrier.
The method according to any one of claims 1 to 4, characterized in that:

The first message includes frequency information uplink information elements of the first component carrier, and the second message includes frequency information uplink information elements of the second component carrier.
The method according to any one of claims 1 to 6, characterized in that:

Carrier bandwidth information of the first component carrier is carried in a carrier bandwidth domain of a specific carrier information element of a subcarrier interval of the first component carrier;

The carrier bandwidth information of the second component carrier is carried in a carrier bandwidth domain of a specific carrier information element at a subcarrier interval of the second component carrier.
The method according to claims 1 to 7, further comprising:

Determining whether the carrier aggregation of the first component carrier and the second component carrier is an in-band continuous carrier aggregation according to a nominal channel spacing between the first component carrier and the second component carrier.
The method according to claim 8, further comprising:

When it is determined that the carrier aggregation of the first component carrier and the second component carrier is continuous carrier aggregation in a band, a first radio frequency channel is configured, and the first radio frequency channel is used to process radio frequency signals of the first component carrier and A radio frequency signal of the second component carrier.
The method according to claim 8, further comprising:

When it is determined that the carrier aggregation of the first component carrier and the second component carrier is not continuous in-band carrier aggregation, a first radio frequency channel is configured, and the first radio frequency channel is used to process radio frequency signals of the first component carrier, A second radio frequency channel is configured, and the second radio frequency channel is used to process a radio frequency signal of the second component carrier, wherein the first radio frequency channel is different from the second radio frequency channel.
A method for carrier aggregation, wherein the carrier aggregation includes at least a first component carrier and a second component carrier, wherein the method includes:

Generating a first message corresponding to the first component carrier, where the first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, wherein the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the first component carrier;

Generating a second message corresponding to the second component carrier, where the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, where the The carrier bandwidth information is used to indicate a maximum transmission bandwidth configuration of the second component carrier;

Sending the first message and the second message to a terminal.
The method according to claim 11, wherein:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the second component carrier.
The method according to claim 11, wherein:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval, wherein the first value interval uniquely corresponds to a maximum transmission bandwidth configuration of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier.
The method according to any one of claims 11 to 13, characterized in that:

The first message includes frequency information downlink information elements of the first component carrier, and the second message includes frequency information downlink information elements of the second component carrier.
The method according to any one of claims 11 to 14, characterized in that:

Carrier bandwidth information of the first component carrier is carried in a carrier bandwidth domain of a specific carrier information element of a subcarrier interval of the first component carrier;

The carrier bandwidth information of the second component carrier is carried in a carrier bandwidth domain of a specific carrier information element at a subcarrier interval of the second component carrier.
A wireless communication device for carrier aggregation, wherein the carrier aggregation includes at least a first component carrier and a second component carrier, wherein the wireless communication device includes:

A receiving unit, configured to receive a first message corresponding to the first component carrier, and receive a second message corresponding to the second component carrier;

The first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, and the carrier bandwidth information of the first component carrier is used to indicate a maximum value of the first component carrier. Transmission bandwidth configuration, the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, and the carrier bandwidth information of the second component carrier is used to indicate the second component carrier Maximum transmission bandwidth configuration;

A processing unit, configured to determine a nominal channel spacing between the first component carrier and the second component carrier according to the first message and the second message.
The wireless communication device according to claim 16, wherein:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the second component carrier.
The wireless communication device according to claim 16, wherein:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval, wherein the first value interval uniquely corresponds to a maximum transmission bandwidth configuration of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier.
The wireless communication device according to any one of claims 16 to 18, wherein:

The processing unit is configured to determine a nominal channel distance between the first component carrier and the second component carrier, and the processing unit is specifically configured to:

Determining a channel bandwidth of the first component carrier according to a maximum transmission bandwidth configuration of the first component carrier;

Determining a channel bandwidth of the second component carrier according to a maximum transmission bandwidth configuration of the second component carrier;

The value unit of the channel bandwidth of the first component carrier and the channel bandwidth of the second component carrier is megahertz (MHz).
The wireless communication device according to any one of claims 16 to 19, wherein:

The first message includes frequency information downlink information elements of the first component carrier, and the second message includes frequency information downlink information elements of the second component carrier.
The wireless communication device according to any one of claims 16 to 19, wherein:

The first message includes frequency information uplink information elements of the first component carrier, and the second message includes frequency information uplink information elements of the second component carrier.
The wireless communication device according to any one of claims 16 to 21, wherein:

Carrier bandwidth information of the first component carrier is carried in a carrier bandwidth domain of a specific carrier information element of a subcarrier interval of the first component carrier;

The carrier bandwidth information of the second component carrier is carried in a carrier bandwidth domain of a specific carrier information element at a subcarrier interval of the second component carrier.
The wireless communication device according to any one of claims 16 to 22, wherein:

The processing unit is further configured to:

Determining whether the carrier aggregation of the first component carrier and the second component carrier is an in-band continuous carrier aggregation according to a nominal channel spacing between the first component carrier and the second component carrier.
The wireless communication device according to claim 23, wherein:

The processing unit is further configured to:

When it is determined that the carrier aggregation of the first component carrier and the second component carrier is continuous carrier aggregation in a band, a first radio frequency channel is configured, and the first radio frequency channel is used to process radio frequency signals of the first component carrier and A radio frequency signal corresponding to the second component carrier.
The wireless communication device according to claim 23, wherein:

The processing unit is further configured to:

When it is determined that the carrier aggregation of the first component carrier and the second component carrier is not continuous in-band carrier aggregation, a first radio frequency channel is configured, and the first radio frequency channel is used to process radio frequency signals of the first component carrier, A second radio frequency channel is configured, and the second radio frequency channel is used to process a radio frequency signal of the second component carrier, wherein the first radio frequency channel is different from the second radio frequency channel.
A wireless communication device for carrier aggregation, wherein the carrier aggregation includes at least a first component carrier and a second component carrier, wherein the device includes:

A processing unit, configured to generate a first message corresponding to the first component carrier and generate a second message corresponding to the second component carrier;

The first message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the first component carrier, and the carrier bandwidth information of the first component carrier is used to indicate a maximum value of the first component carrier. Transmission bandwidth configuration, the second message includes carrier offset information, subcarrier interval information, and carrier bandwidth information of the second component carrier, and the carrier bandwidth information of the second component carrier is used to indicate the second component carrier Maximum transmission bandwidth configuration;

A sending unit, configured to send the first message and the second message to a terminal.
The wireless communication device according to claim 26, wherein:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier is equal to the number of resource blocks configured by the maximum transmission bandwidth of the second component carrier.
The wireless communication device according to claim 26, wherein:

The number of resource blocks indicated by the carrier bandwidth information of the first component carrier belongs to a first value interval, wherein the first value interval uniquely corresponds to a maximum transmission bandwidth configuration of the first component carrier;

The number of resource blocks indicated by the carrier bandwidth information of the second component carrier belongs to a second value interval, wherein the second value interval uniquely corresponds to a maximum transmission bandwidth configuration of the second component carrier.
The wireless communication device according to any one of claims 26 to 28, wherein:

The first message includes frequency information downlink information elements of the first component carrier, and the second message includes frequency information downlink information elements of the second component carrier.
The wireless communication device according to any one of claims 26 to 29, wherein:

Carrier bandwidth information of the first component carrier is carried in a carrier bandwidth domain of a specific carrier information element of a subcarrier interval of the first component carrier;

The carrier bandwidth information of the second component carrier is carried in a carrier bandwidth domain of a specific carrier information element at a subcarrier interval of the second component carrier.
A terminal, comprising:

Processors, memories and transceivers,

The processor is configured to execute instructions in the memory, so that the terminal implements the method according to any one of claims 1 to 10.
A computer-readable storage medium, characterized in that:

The computer-readable storage medium stores program code, and when the program code is executed by a processor in a terminal, the method according to any one of claims 1 to 10 is implemented.
A computer program product characterized by:

When the program code contained in the computer program product is executed by a processor in a terminal, the method according to any one of claims 1 to 10 is implemented.
A wireless network device, comprising:

Processors, memories and transceivers,

The processor is configured to execute instructions in the memory, so that the wireless network device implements the method according to any one of claims 11 to 15.
A computer-readable storage medium, characterized in that:

A program code is stored in the computer-readable storage medium, and when the program code is executed by a processor in a wireless network device, the method according to claim 1 is implemented.
A computer program product characterized by:

When the program code contained in the computer program product is executed by a processor in a wireless network device, the method according to any one of claims 1 to 15 is implemented.