CN110611938A - Communication method and device - Google Patents

Abstract

The application provides a communication method and a device, and the method comprises the following steps: the network equipment determines first control information and sends the first control information to a terminal through a first bandwidth part in a first bandwidth part packet, the terminal receives the first control information through the first bandwidth part, the first control information is used for indicating a second bandwidth part in a second bandwidth part packet, the first bandwidth part packet and the second bandwidth part packet respectively comprise an upstream bandwidth part and a downstream bandwidth part, and the second bandwidth part is an upstream bandwidth part or a downstream bandwidth part; the terminal activates the second bandwidth part in the second bandwidth part packet according to the first control information. The communication method and the communication device can realize the activation of the bandwidth part, thereby improving the system performance.

Description

Communication method and device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and apparatus.

Background

In the New Radio (NR) of the 5th generation (5G), data transmission between the network device and the terminal is discussed and supported through a two-step resource allocation manner, that is, the network device may first indicate a frequency domain continuous resource for the terminal, which is called a bandwidth part (BWP), and then allocate the resource for the terminal in the bandwidth part and transmit data.

Currently, it is desirable to be able to support a terminal to transmit data using multiple active bandwidth portions in one cell at a given time. Therefore, how to activate the multiple bandwidth parts becomes a technical problem to be solved.

Disclosure of Invention

The application provides a communication method and device, which can realize the activation of a bandwidth part, thereby improving the system performance.

In a first aspect, a communication method is provided, including: the terminal receives first control information through a first bandwidth part in a first bandwidth part packet, wherein the first control information is used for indicating a second bandwidth part in a second bandwidth part packet, and the first bandwidth part packet and the second bandwidth part packet respectively comprise an upstream bandwidth part and a downstream bandwidth part; and the terminal activates the second bandwidth part in the second bandwidth part group according to the first control information, wherein the second bandwidth part is an uplink bandwidth part or a downlink bandwidth part.

Specifically, the network device may indicate the second bandwidth part in the second bandwidth part packet through the first bandwidth part in the first bandwidth part packet, that is, the cross-bandwidth part packet indication, and the terminal device may implement an activation or deactivation operation of the bandwidth part in the second bandwidth part packet according to a current state of the second bandwidth part packet indicated by the first control information. In this embodiment, all bandwidth parts in the second bandwidth part packet are deactivated, and the terminal may activate the second bandwidth part in the second bandwidth part packet, so that the second bandwidth part packet is activated.

The communication method according to the embodiment of the present application can be implemented simply by indicating the second bandwidth part group with the first bandwidth part in the first bandwidth part group, thereby improving the system performance.

In another possible implementation manner, if there is at least one bandwidth part in a second bandwidth part packet in which the second bandwidth part is active, the terminal may deactivate the active bandwidth part in the second bandwidth part packet, so that the second bandwidth part packet is deactivated. In this case, the second bandwidth part may be activated or deactivated, which is not limited in this embodiment of the application.

With reference to the first aspect, in a possible implementation manner, the downlink bandwidth part in the first bandwidth part packet includes a bandwidth part for receiving a system message and/or a bandwidth part for initial access.

With reference to the first aspect, in a possible implementation manner, the first control information is received by the terminal through a first search space corresponding to an active bandwidth part of the first bandwidth part packet, where the first search space is further used for the terminal to receive second control information, and the second control information is used to indicate the uplink bandwidth part and/or the downlink bandwidth part in the first bandwidth part packet. Optionally, the payload size of the first control information and the payload size of the second control information are the same.

Specifically, the activated bandwidth part in the first bandwidth part packet corresponds to a first search space, and the first search space is further used for the terminal to receive second control information, where the second control information is used for the network device to perform self-contained scheduling, that is, to indicate the bandwidth part in the first bandwidth part packet by using the bandwidth part in the first bandwidth part packet. In other words, the search space employed by the network device for activating (or deactivating) the cross-bandwidth partial packet and the self-contained scheduling may be the same.

According to the communication method, the first bandwidth part in the first bandwidth part group is adopted to indicate the second bandwidth part in the second bandwidth part group, so that the activation of a plurality of bandwidth parts can be realized, the realization is simple, and meanwhile, the complexity of blind detection of a downlink control channel by a terminal is not increased, and the system performance is improved.

With reference to the first aspect, in a possible implementation manner, the method further includes: the terminal activates at least one uplink bandwidth part in the second bandwidth part packet; wherein the second bandwidth part is a downstream bandwidth part and the at least one upstream bandwidth part is a counterpart upstream bandwidth part of the second bandwidth part, or the at least one upstream bandwidth part is a preconfigured upstream bandwidth part in the second bandwidth part grouping.

With reference to the first aspect, in a possible implementation manner, the method further includes: the terminal activates at least one downlink bandwidth part in the second bandwidth part packet; wherein the second bandwidth part is an upstream bandwidth part, the at least one downstream bandwidth part is a counterpart downstream bandwidth part of the second bandwidth part, or the at least one downstream bandwidth part is a preconfigured downstream bandwidth part in the second bandwidth part grouping.

When the first control information indicates the second bandwidth part packet (i.e., the slave bandwidth part packet), the terminal may activate signaling for the bandwidth part in the second bandwidth part packet as viewed from the first control information. When the second bandwidth part indicated by the first control information is an uplink bandwidth part, the terminal activates the indicated uplink bandwidth part, i.e., the second bandwidth part. If the second bandwidth part is not paired with one or more downlink bandwidth parts, the terminal may activate a preconfigured downlink bandwidth part (also referred to herein as a first activated downlink bandwidth part) in the second bandwidth part group, otherwise, the terminal may activate a downlink bandwidth part paired therewith, i.e., the at least one downlink bandwidth part, also referred to herein as a fifth bandwidth part.

Similarly, when the second bandwidth part indicated by the first control information is the downlink bandwidth part, the terminal activates the indicated downlink bandwidth part, i.e. the second bandwidth part. If the second bandwidth part is not paired with one or more uplink bandwidth parts, the terminal may activate a preconfigured uplink bandwidth part (also referred to herein as a first activated uplink bandwidth part) in the second bandwidth part group, otherwise, the terminal may activate the uplink bandwidth part paired therewith, i.e., the at least one uplink bandwidth part, also referred to herein as a fourth bandwidth part.

With reference to the first aspect, in a possible implementation manner, the method further includes: the terminal receives third control information through the first bandwidth part, wherein the third control information is used for indicating any bandwidth part in the second bandwidth part group; and the terminal deactivates all bandwidth parts in the second bandwidth part group according to the third control information.

Specifically, for the bandwidth part granularity or the activation of the granularity by the bandwidth part, after the second bandwidth part packet is activated, the terminal may further receive third control information, which may indicate any bandwidth part in the second bandwidth part packet, and since the second bandwidth part in the second bandwidth part packet has been activated and the second bandwidth part packet is in an activated state, the terminal may determine the third control information as deactivation indication information, thereby deactivating the already activated bandwidth part in the second bandwidth part packet.

It should be understood that the bandwidth part indicated by the third control information may be the second bandwidth part, or may be another bandwidth part in the second bandwidth part group, which is not limited in this embodiment of the application.

For the activation of the bandwidth part grouping granularity or the bandwidth part grouping pairing granularity, after the second bandwidth part grouping is activated, the terminal may further receive third control information, the third control information may indicate the second bandwidth part grouping, since the second bandwidth part in the second bandwidth part grouping has been activated, the second bandwidth part grouping is in an activated state, and the terminal may determine the third control information as deactivation indication information, thereby deactivating the bandwidth part in the second bandwidth part grouping that has been activated.

With reference to the first aspect, in a possible implementation manner, the first control information is further configured to indicate to activate a bandwidth part in the second bandwidth part packet, and the third control information is further configured to indicate to deactivate a bandwidth part in the second bandwidth part packet.

Specifically, the network device may indicate the terminal to perform the activation or deactivation operation in a display manner, and in a possible implementation manner, the network device may indicate the terminal to activate the bandwidth part in the second bandwidth part group through the first control information, and may further indicate the terminal to deactivate the bandwidth part in the second bandwidth part group through the third control information after the second bandwidth part group is activated.

The terminal is indicated to execute the activation or deactivation operation through the display of the network equipment, so that the understanding consistency of the network equipment and the terminal can be ensured, and errors are not easy to occur.

With reference to the first aspect, in a possible implementation manner, a value of a first bit field of the first control information is a first value, and a value of the first bit field of the third control information is a second value.

Specifically, the network device may instruct the terminal to perform an activation or deactivation operation by taking a value of a first bit field in the control information, where the first bit field may include one or more bits. The network device and the terminal may well define that a value of the first bit field corresponding to the activation operation is a first value, and a value of the first bit field corresponding to the deactivation operation is a second value, so in this embodiment of the present application, a value of the first bit field of the first control information is a first value, and a value of the first bit field of the third control information is a second value. Optionally, the first control information and the third control information have the same format.

As an alternative embodiment, the first control information and the third control information have different formats. For example, the first control information may be activation signaling of bandwidth part granularity or bandwidth part pair granularity, and the third control information may be deactivation signaling of bandwidth part grouping granularity or bandwidth part grouping pair granularity.

As an alternative embodiment, the third control information is received by the terminal through the first search space corresponding to the active bandwidth part in the first bandwidth part group. Optionally, the payload size of the third control information and the second control information is the same.

Specifically, the network device may send the third control information to the terminal through the first search space corresponding to the active bandwidth part in the first bandwidth part packet, and correspondingly, the terminal receives the third control information sent by the network device through the first search space. In other words, the search space employed by the network device for cross-bandwidth partial packet deactivation and self-contained scheduling may be the same.

Therefore, the deactivation of a plurality of bandwidth parts can be realized, the realization is simple, the complexity of blind detection of the downlink control channel by the terminal is not increased, and the system performance is improved.

With reference to the first aspect, in a possible implementation manner, the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

With reference to the first aspect, in a possible implementation manner, after the activating the second bandwidth part in the second bandwidth part packet, the method further includes: the terminal receives fourth control information through a second search space corresponding to the second bandwidth part; the second bandwidth part is a downlink bandwidth part, and the fourth control information is used to indicate at least one bandwidth part in the second bandwidth part packet.

Specifically, if the second bandwidth part is a downlink bandwidth part, after the terminal activates the second bandwidth part, the terminal may further receive fourth control information through a second search space corresponding to the second bandwidth part, where the fourth control information is used for performing self-contained scheduling, and indicates at least one bandwidth part in a second bandwidth part packet. The at least one bandwidth part is also referred to herein as a sixth bandwidth part, which may include both an uplink bandwidth part and a downlink bandwidth part.

With reference to the first aspect, in a possible implementation manner, after the activating the second bandwidth part in the second bandwidth part packet, the method further includes: the terminal receives fifth control information through a third search space corresponding to a seventh bandwidth part, wherein the fifth control information is used for indicating at least one bandwidth part in the second bandwidth part packet; the second bandwidth part is an uplink bandwidth part, and the seventh bandwidth part is a paired downlink bandwidth part of the second bandwidth part, or the seventh bandwidth part is a downlink bandwidth part preconfigured in the second bandwidth part group.

Specifically, if the second bandwidth part is an uplink bandwidth part, after the terminal activates the second bandwidth part, the terminal may further receive fifth control information through a downlink bandwidth part paired with the second bandwidth part or a preconfigured downlink bandwidth part, where the fifth control information is used for performing self-contained scheduling, and indicates at least one bandwidth part in the second bandwidth part packet. The at least one bandwidth portion is also referred to herein as an eighth bandwidth portion, which may include both the upstream bandwidth portion and the downstream bandwidth portion.

In a second aspect, another communication method is provided, including: the network equipment determines first control information, wherein the first control information is used for indicating a second bandwidth part in a second bandwidth part packet; the network equipment sends the first control information to a terminal through a first bandwidth part in a first bandwidth part packet; wherein the first bandwidth part packet and the second bandwidth part packet each include an upstream bandwidth part and a downstream bandwidth part, and the second bandwidth part is either an upstream bandwidth part or a downstream bandwidth part.

With reference to the second aspect, in one possible implementation manner, the downlink bandwidth part in the first bandwidth part packet includes a bandwidth part for receiving a system message and/or a bandwidth part for initial access.

With reference to the second aspect, in a possible implementation manner, the first control information is received by the terminal through a first search space corresponding to an active bandwidth part of the first bandwidth part packet, where the first search space is further used for the terminal to receive second control information, and the second control information is used for indicating the uplink bandwidth part and/or the downlink bandwidth part in the first bandwidth part packet.

With reference to the second aspect, in a possible implementation manner, the method further includes:

the network device sends third control information to the terminal through the first bandwidth part, wherein the third control information is used for indicating any bandwidth part in the second bandwidth part group.

With reference to the second aspect, in a possible implementation manner, the first control information is further used to indicate to activate a bandwidth part in the second bandwidth part packet, and the third control information is further used to indicate to deactivate a bandwidth part in the second bandwidth part packet.

With reference to the second aspect, in a possible implementation manner, a value of a first bit field of the first control information is a first value, and a value of the first bit field of the third control information is a second value.

With reference to the second aspect, in a possible implementation manner, the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

In a third aspect, another communication method is provided, including: the terminal receives sixth control information through a ninth bandwidth part in a third bandwidth part packet, the sixth control information indicating a tenth bandwidth part in a fourth bandwidth part packet, and an eleventh bandwidth part also existing in the fourth bandwidth part packet, the eleventh bandwidth part being active, wherein the sixth control information is also used for data scheduling of the ninth bandwidth part, and the third bandwidth part packet and the fourth bandwidth part packet respectively comprise an upstream bandwidth part and a downstream bandwidth part; and the terminal deactivates the tenth bandwidth part and activates the tenth bandwidth part.

Specifically, the ninth bandwidth part belongs to the third bandwidth part packet, the tenth bandwidth part and the eleventh bandwidth part belong to the fourth bandwidth part packet, and the network device may transmit sixth control information to the terminal through the ninth bandwidth part indicating that the tenth bandwidth part is deactivated and the eleventh bandwidth part is activated, and after receiving the sixth control information, the terminal may activate the tenth bandwidth part, deactivate the eleventh bandwidth part, while keeping the ninth bandwidth part activated, i.e., perform the switching of the bandwidth parts. In the embodiment of the present application, the sixth control information is used for data scheduling of the tenth bandwidth part.

It should be understood that the third bandwidth part packet may be a master bandwidth part packet, and the fourth bandwidth part packet may be a slave bandwidth part packet, but the embodiment of the present application does not limit this.

With reference to the third aspect, in a possible implementation manner, the ninth bandwidth part, the tenth bandwidth part, and the eleventh bandwidth part are all downlink bandwidth parts.

With reference to the third aspect, in a possible implementation manner, after the terminal deactivates the eleventh bandwidth part and activates the tenth bandwidth part, the method further includes: the terminal receives control information through the ninth bandwidth part; or, the terminal receives control information through the tenth bandwidth part.

After the switching of the bandwidth part is completed, the terminal may continue to receive the control information by using the ninth bandwidth part, or may receive the control information by using the newly activated tenth bandwidth part, which is not limited in this embodiment of the application.

With reference to the third aspect, in a possible implementation manner, the sixth control information includes a resource allocation field, and the resource allocation field is used to instruct the terminal to receive control information through the tenth bandwidth part.

Specifically, the network device may instruct the terminal to receive the control information through the tenth bandwidth part through the resource allocation field in the sixth control information. In this case, the sixth control information may be non-zero scheduling downlink control information (non-zero assignment DCI). The terminal may transmit data on the resources indicated by the resource allocation field.

With reference to the third aspect, in a possible implementation manner, the sixth control information carries an index of the fourth bandwidth part packet and/or an index of the tenth bandwidth part.

In a fourth aspect, another communication method is provided, including: the network device determines sixth control information, wherein the sixth control information is used for indicating a tenth bandwidth part in a fourth bandwidth part packet, and an eleventh bandwidth part is also present in the fourth bandwidth part packet, and the eleventh bandwidth part is active, and the sixth control information is also used for data scheduling of the tenth bandwidth part; the network device transmits the sixth control information through a ninth bandwidth part in a third bandwidth part packet, the third bandwidth part packet and the fourth bandwidth part packet including an upstream bandwidth part and a downstream bandwidth part, respectively.

With reference to the fourth aspect, in a possible implementation manner, the ninth bandwidth part, the tenth bandwidth part, and the eleventh bandwidth part are all downlink bandwidth parts.

With reference to the fourth aspect, in a possible implementation manner, the sixth control information includes a resource allocation field, and the resource allocation field is used to instruct the terminal to receive control information through the tenth bandwidth part.

With reference to the fourth aspect, in a possible implementation manner, the sixth control information carries an index of the fourth bandwidth part packet and/or an index of the tenth bandwidth part.

In a fifth aspect, there is provided an apparatus comprising means for performing the steps of any of the first to fourth aspects above and embodiments thereof.

In one design, the device is a communication chip that may include an input circuit or interface for sending information or data and an output circuit or interface for receiving information or data.

In another design, the apparatus is a terminal that may include a transmitter to transmit information or data and a receiver to receive information or data.

In yet another design, the apparatus is a network device that may include a transmitter to transmit information or data and a receiver to receive information or data.

In a sixth aspect, there is provided an apparatus comprising a processor, a memory for storing a computer program, and the processor being configured to invoke and execute the computer program from the memory, such that the apparatus performs the method of any one of the first to fourth aspects and embodiments thereof.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or separate from the processor.

Optionally, the apparatus further comprises a transmitter (transmitter) and a receiver (receiver).

In a seventh aspect, a computer program product is provided, the computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any one of the possible implementations of the first to fourth aspects described above.

In an eighth aspect, a computer-readable medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method in any of the possible implementations of the first to fourth aspects.

In a ninth aspect, a chip system is provided, which includes a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that a communication device in which the chip system is installed executes the method in any one of the possible implementation manners of the first aspect to the fourth aspect.

The system-on-chip may include, among other things, input circuitry or interfaces for transmitting information or data, and output circuitry or interfaces for receiving information or data.

Drawings

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

Fig. 2 is an exemplary flowchart of a communication method according to an embodiment of the present application.

Fig. 3 is an exemplary flow chart of another communication method according to an embodiment of the present application.

Fig. 4 is an exemplary block diagram of an apparatus according to an embodiment of the present application.

Fig. 5 is an exemplary block diagram of another apparatus according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a fifth generation (5G) system, or a New Radio (NR) system.

A terminal in the embodiments of the present application may refer to a User Equipment (UE), a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.

The network device in this embodiment may be a device for communicating with a terminal, and the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (nodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved node b (eNB or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network, or a network device in a future evolved PLMN network, and the like, and the present embodiment is not limited.

In the following, some concepts or terms referred to in the present application are first briefly described.

1. Bandwidth part (BWP)

In the 5G NR, data transmission between a network device and a terminal is discussed and supported by a two-step resource allocation manner, that is, the network device allocates a bandwidth portion to the terminal first, then allocates resources to the terminal in the bandwidth portion, and transmits data by allocating resources to the terminal. Hereinafter, unless otherwise specified, transmission may refer to either uplink transmission or downlink reception.

It should be understood that the bandwidth part may also be referred to as a carrier bandwidth part (carrier bandwidth part), and other names may also be used, which is not limited in the embodiments of the present application.

It should also be understood that the cell may be a serving cell for the terminal. The serving cell is described by a higher layer from the point of view of resource management or mobility management or serving element. The coverage area of each network device may be divided into one or more serving cells, and the serving cells may be regarded as being composed of certain frequency domain resources, i.e., one serving cell may include one or more carriers. The concept of carrier waves is described from the point of view of signal generation of the physical layer. One carrier is defined by one or more frequency points, corresponds to a continuous or discontinuous section of spectrum, and is used for carrying communication data between the network equipment and the terminal. The downlink carrier may be used for downlink transmission and the uplink carrier may be used for uplink transmission. In addition, a plurality of uplink bandwidth parts may be configured on one uplink carrier, and a plurality of downlink bandwidth parts may be configured on one downlink carrier.

Illustratively, the allocation of the bandwidth portion to the terminal by the network device may be applied to any one or any combination of the following three scenarios.

(1) Large bandwidth scenarios

In a communication system, with the increase of terminal traffic and the increase of the number of terminals, the system traffic is significantly increased, and therefore, a design that the system bandwidth is large is proposed in the existing communication system to provide more system resources, so that a higher data transmission rate can be provided. In a communication system in which the system bandwidth is large, the bandwidth supported by the terminal may be smaller than the system bandwidth in consideration of the cost of the terminal and the traffic of the terminal. The larger the bandwidth supported by the terminal is, the stronger the processing capability of the terminal is, the higher the data transmission rate of the terminal may be, and the higher the design cost of the terminal may be. The bandwidth supported by the terminal may also be referred to as the bandwidth capability of the terminal. Illustratively, in a 5G system, the system bandwidth may be 400MHz at most, and the bandwidth capability of the terminal may be 20MHz, 50MHz, or 100MHz, etc. In a wireless communication system, the bandwidth capabilities of different terminals may be the same or different, which is not limited in this embodiment of the present application.

In a communication system with a large system bandwidth, since the bandwidth capability of the terminal is smaller than the system bandwidth, the network device may configure a bandwidth portion for the terminal from the system frequency resources, where the bandwidth of the bandwidth portion is smaller than or equal to the bandwidth capability of the terminal. When the terminal and the network device communicate, the network device may allocate some or all of the resources in the bandwidth portion configured for the terminal to the terminal for communication between the network device and the terminal.

(2) Multi-parameter set (numerology) scenes

In a wireless communication system, for example, a 5G system, in order to support more service types and/or communication scenarios, a design supporting multiple parameter sets is proposed. The parameter set is a parameter employed by the communication system. A communication system (e.g., 5G) may support multiple parameter sets. The parameter set may be defined by one or more of the following parameter information: subcarrier spacing, Cyclic Prefix (CP), time unit, bandwidth, etc. The parameter sets may be set independently for different traffic types and/or communication scenarios.

In one possible configuration, the network device may configure multiple bandwidth portions in the system frequency resource, and independently configure a set of parameters for each of the multiple bandwidth portions, for supporting multiple traffic types and/or communication scenarios in the system frequency resource. The parameter sets of different bandwidth parts may be the same or different, and the present application is not limited thereto.

When the terminal and the network device communicate, the network device may determine the parameter set a for communicating based on the traffic type and/or the communication scenario corresponding to the communication, so that the terminal may be configured with a corresponding bandwidth portion based on the parameter set a. Wherein the parameter set of the corresponding bandwidth part is configured as parameter set a. When the terminal and the network device communicate with each other, the network device may allocate some or all of the resources in the bandwidth portion configured for the terminal to the terminal for communication between the network device and the terminal.

(3) Bandwidth fallback

When the terminal and the network device communicate, the network device may configure the terminal with a bandwidth portion based on traffic of the terminal for saving power consumption of the terminal. For example, if the terminal has no service, the terminal may receive the control information only in a smaller bandwidth portion, which may reduce the task amount of the radio frequency processing and the task amount of the baseband processing of the terminal, and thus may reduce the power consumption of the terminal. If the traffic of the terminal is less, the network device may configure a bandwidth portion with a smaller bandwidth for the terminal, which may reduce the task amount of radio frequency processing and the task amount of baseband processing of the terminal, thereby reducing the power consumption of the terminal. If the traffic of the terminal is large, the network device may configure the terminal with a bandwidth portion having a larger bandwidth, so as to provide a higher data transmission rate. When the terminal and the network device communicate with each other, the network device may allocate some or all of the resources in the bandwidth portion configured for the terminal to the terminal for communication between the network device and the terminal.

Illustratively, the bandwidth part may be a downlink bandwidth part for downlink reception by the terminal, where the bandwidth of the bandwidth part does not exceed the reception bandwidth capability of the terminal; the bandwidth part may also be an uplink bandwidth part, which is used for uplink transmission by the terminal, and in this case, the bandwidth of the bandwidth part does not exceed the transmission bandwidth capability of the terminal.

The network device may configure the terminal with a plurality of bandwidth portions including both an upstream bandwidth portion and a downstream bandwidth portion. Generally, the upstream bandwidth part and the downstream bandwidth part are configured independently, including configuring their frequency location, bandwidth and parameter set independently.

At a given moment, the terminal performs data transmission based on the active bandwidth part in the configured bandwidth part. The terminal does not expect to perform downlink reception outside the downlink bandwidth portion and does not expect to perform uplink transmission outside the uplink bandwidth portion. This transmission feature may also be referred to as self-contained transmission. For example, at a given time, the terminal has an active downlink bandwidth portion and an active uplink bandwidth portion (if a supplementary uplink carrier (SUL) is configured in the cell, an uplink bandwidth portion may be additionally activated). For a Time Division Duplex (TDD) mode, the activated uplink bandwidth part and the downlink bandwidth part are aligned in the center (it is not required that the uplink bandwidth part on the SUL is aligned with the downlink bandwidth part), and at this time, the activated bandwidth part and the downlink bandwidth part are called to form a bandwidth part pair.

2. Bandwidth portion grouping

When it is desired to support a terminal to transmit data in a cell at a given time using multiple active downlink bandwidth segments and multiple active uplink bandwidth segments, the following concept of bandwidth segment grouping is proposed. The terminal transmits data by using a plurality of bandwidth parts at the same time by taking at least one activated bandwidth part included in each bandwidth part group as a whole, so that the system compatibility is high and the realization is simple.

The network device may divide a bandwidth portion configured for the same service of the terminal into one bandwidth portion packet, for example, one bandwidth portion packet is used for transmitting an enhanced mobile broadband (eMBB) service, and another bandwidth portion packet is used for transmitting an Ultra Reliable and Low Latency Communication (URLLC) service; or, one bandwidth part packet is used for the access link and the other bandwidth part packet is used for the backhaul link; alternatively, one bandwidth part packet is used for the link between the network device and the terminal, and another bandwidth part packet is used for the link between the terminal and the terminal. Of course, the network device may have other partition criteria, which is not limited in this application.

How the bandwidth portions are grouped is described in detail below for two different grouping schemes.

(1) First wideband partial grouping scheme

The N bandwidth parts configured for the terminal may be configured as or represented as G bandwidth part packets, of which the ith bandwidth part packet includes N_i,ULA portion of upstream bandwidth and N_i,DLA downstream bandwidth portion. N is above_i,ULA bandwidth of one uplinkMoiety and N_i,DLThe number of individual downstream bandwidth portions may be the same or different in the ith bandwidth portion packet.

On the basis, the configured bandwidth parts can be paired, and at least two bandwidth parts paired with each other are called as a bandwidth part pair. For one bandwidth part of a pair of bandwidth parts, the bandwidth part of the pair of bandwidth parts other than the bandwidth part is a counterpart bandwidth part of the bandwidth part.

It should be understood that the above-mentioned bandwidth part pair may also be referred to as a bandwidth part combination (bundle), and since the bandwidth part pair may be unidirectional or bidirectional, in the bandwidth part combination, the number of unidirectional bandwidth parts is at least 2, and the number of bidirectional bandwidth parts is also at least 2.

The following extends the concept of a wideband section pair based on a first wideband section grouping scheme, comprising:

the bandwidth part pairs are unidirectional, i.e. one bandwidth part pair may contain multiple upstream bandwidth parts in one bandwidth part packet, or one bandwidth part pair may contain multiple downstream bandwidth parts in one bandwidth part packet. This case may be applicable to a Frequency Division Duplex (FDD) mode. Pairing uplink bandwidth parts or downlink bandwidth parts facilitates the terminal to use the paired uplink bandwidth parts or downlink bandwidth parts simultaneously in a bandwidth part grouping, e.g. a Transport Block (TB) of the terminal is mapped on the uplink bandwidth parts or downlink bandwidth parts. In one bandwidth part group, both paired upstream bandwidth parts and/or downstream bandwidth parts and unpaired upstream bandwidth parts and/or unpaired downstream bandwidth parts may be included.

The bandwidth part pairs are bi-directional, i.e. one bandwidth part pair may comprise one or more upstream bandwidth parts and one or more downstream bandwidth parts in one bandwidth part packet. This case may be applicable to TDD mode.

In the case where the bandwidth part pair is bidirectional, further, each upstream bandwidth part in a bandwidth part packet has one or more downstream bandwidth parts within the bandwidth part packet paired with the bandwidth part, and each downstream bandwidth part in a bandwidth part packet has one or more upstream bandwidth parts within the bandwidth part packet paired with the bandwidth part.

In the case that the bandwidth part pair is bidirectional, it is also allowable that at least one upstream bandwidth part exists in one bandwidth part packet, and there is no downstream bandwidth part paired with the upstream bandwidth part; or at least one downlink bandwidth part exists in the bandwidth part group, and no uplink bandwidth part paired with the downlink bandwidth part exists.

In the present application, in one bandwidth part packet, one or more of the following may be included: the above-mentioned bidirectional bandwidth part pair, unidirectional bandwidth part pair and unpaired bandwidth part.

(2) Second wideband partial grouping scheme

The N bandwidth parts configured for the terminal may be configured as or denoted as G bandwidth part packets, the i-th bandwidth part packet of the G bandwidth part packets being composed of N bandwidth part packets_i,ULThe I bandwidth part group is the uplink bandwidth part group; or, the ith bandwidth part packet in the G bandwidth part packets is composed of N_i,DLThe first bandwidth portion is grouped into a first bandwidth portion and the second bandwidth portion is grouped into a second bandwidth portion.

On this basis, the uplink bandwidth part packet may be paired with or correspond to the downlink bandwidth part packet, which is called as a bandwidth part packet pairing. Here, it is not distinguished whether FDD mode or TDD mode, and pairing is to support uplink transmission and downlink feedback of the terminal. The number of bandwidth part packets in the bandwidth part packet pair is at least two.

On the basis, the configured bandwidth parts can be paired, and at least two bandwidth parts paired with each other are called as a bandwidth part pair. For one bandwidth part of a pair of bandwidth parts, the bandwidth part of the pair of bandwidth parts other than the bandwidth part is a counterpart bandwidth part of the bandwidth part. It is to be understood that the above-mentioned paired bandwidth parts include at least two bandwidth parts. Further, the paired bandwidth parts may be obtained based on the paired bandwidth part groups.

In the following, the concept of a pair of bandwidth parts is extended based on a second bandwidth part grouping scheme, comprising:

the bandwidth part pairs are unidirectional, i.e. one bandwidth part pair may contain multiple upstream bandwidth parts in one upstream bandwidth part packet, or one bandwidth part pair may contain multiple downstream bandwidth parts in one downstream bandwidth part packet. In an upstream bandwidth part group, both paired upstream bandwidth parts and unpaired upstream bandwidth parts may be included; in a downlink bandwidth part packet, both paired downlink bandwidth parts and non-paired downlink bandwidth parts may be included.

The bandwidth part pairs are bi-directional, i.e. one bandwidth part pair may comprise one or more upstream bandwidth parts in an upstream bandwidth part packet and one or more downstream bandwidth parts in a downstream bandwidth part packet paired or corresponding thereto. For one bandwidth part of a pair of bandwidth parts, the bandwidth part of the pair of bandwidth parts other than the bandwidth part is a counterpart bandwidth part of the bandwidth part.

In the case where the pair of bandwidth parts is bidirectional, further, for each upstream bandwidth part in a given upstream bandwidth part packet, within the downstream bandwidth part packet corresponding to the upstream bandwidth part packet, there is one or more downstream bandwidth parts paired with the upstream bandwidth part; for each downstream bandwidth portion in a given downstream bandwidth portion packet, there are one or more upstream bandwidth portions paired with that downstream bandwidth portion within the upstream bandwidth portion packet corresponding to that downstream bandwidth portion packet.

In the case that the bandwidth part pair is bidirectional, it is also allowable that at least one upstream bandwidth part exists in one upstream bandwidth part packet, and there is no downstream bandwidth part paired with the upstream bandwidth part; or allowing at least one downstream bandwidth part to exist in a downstream bandwidth part packet and not allowing an upstream bandwidth part to be paired with the downstream bandwidth part.

In the present application, a bandwidth part allocation pair may include one or more of the following:

the above-mentioned bidirectional bandwidth part pair, unidirectional bandwidth part pair and unpaired bandwidth part. For example, any one type of the above-described bidirectional bandwidth part pair, unidirectional bandwidth part pair, and non-paired bandwidth part is located in the bandwidth part allocation pair; or, the plurality of types of the bidirectional bandwidth part pair, the unidirectional bandwidth part pair and the non-paired bandwidth part are located in the bandwidth part grouping pair. The present application does not limit the number of the same type and/or different types located in the bandwidth part grouping pairs.

Hereinafter, unless otherwise specified, a bandwidth part packet may refer to a bandwidth part packet in the first bandwidth part packet scheme, or may refer to an upstream bandwidth part packet and/or a downstream bandwidth part packet in the second bandwidth part packet.

In addition, based on the bandwidth part packet, the terminal has two possible transmission modes, i.e., a Frequency Division Multiplexing (FDM) mode and a Time Division Multiplexing (TDM) mode.

In FDM mode, the terminal may transmit data using these active bandwidth parts in parallel, e.g., one bandwidth part packet for transmitting eMBB traffic and another bandwidth part packet for transmitting URLLC traffic; or, one bandwidth part packet is used for the access link and the other bandwidth part packet is used for the backhaul link; alternatively, one bandwidth part packet is used for the link between the network device and the terminal, and the other bandwidth part packet is used for the link between the terminal and the terminal. The quality of service (QoS) requirement to be met at this point may be the (overall or average) transmission rate/throughput over each of the bandwidth parts of the packet.

In TDM mode, the terminal uses only the bandwidth part of one of the bandwidth part packets for data transmission at a given time, but by activating multiple bandwidth parts belonging to different bandwidth part packets, it is possible for the terminal to respond to different services quickly (e.g., switching of zero delay between bandwidth parts) without increasing parallel processing capability.

3. Activation/deactivation of bandwidth segments

(1) Activation/deactivation of granularity of bandwidth parts

For the multi-parameter set scenario and the bandwidth backoff scenario, the 5G NR supports dynamic switching of indicating a bandwidth part through Downlink Control Information (DCI), so as to implement fast switching of different parameters and/or energy saving. Alternatively, the DCI may be a scheduling DCI for scheduling terminal-specific uplink/downlink data. The terminal-specific downlink data is data to be transmitted from the network device to the specified terminal, and the terminal-specific uplink data is data to be transmitted from the specified terminal to the network device.

If there is only one active bandwidth part at each time on a carrier, the dynamic switching of the bandwidth parts is also the activation and deactivation of the bandwidth parts. The activated bandwidth part may be understood as a bandwidth part in which the terminal currently operates, the terminal may receive a downlink reference signal (including a downlink demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a Physical Downlink Control Channel (PDCCH), and a Physical Downlink Shared Channel (PDSCH) on the activated downlink bandwidth part, and the wide part may transmit an uplink reference signal (including an uplink DMRS), a Physical Uplink Control Channel (PUCCH), and a Physical Uplink Shared Channel (PUSCH) on the activated uplink bandwidth part.

For example, for a multi-parameter set scenario, the network device may configure two bandwidth parts for the terminal, one corresponding to parameter set a and the other corresponding to parameter set B; when the terminal operates on the bandwidth portion corresponding to parameter set a, the network device may switch the terminal to the bandwidth portion corresponding to parameter set B, and vice versa, by sending dynamic signaling on this bandwidth portion.

For example, for a bandwidth fallback scenario, the network device may configure two bandwidth parts for the terminal, where one bandwidth part has a larger bandwidth and the other bandwidth part has a smaller bandwidth; when the terminal works on the bandwidth part with small bandwidth, the network equipment can switch the terminal to the bandwidth part with large bandwidth by sending dynamic signaling on the bandwidth part, so that the terminal can respond to the burst traffic quickly; conversely, when the terminal operates on a large bandwidth portion, the network device may switch the terminal to a small bandwidth portion by sending dynamic signaling on the bandwidth portion, thereby enabling the terminal to save power.

In 5G NR, the above dynamic signaling enabling bandwidth portion switching is DCI for user data scheduling within a bandwidth portion. Specifically, the configured bandwidth part has a unique index, and the DCI includes a bandwidth part index indication field for indicating on which bandwidth part the data scheduled by the DCI is transmitted.

For example, a terminal is configured with two bandwidth parts, namely a bandwidth part a and a bandwidth part B; when the terminal works on the bandwidth part A, the bandwidth part indicated by the bandwidth part index indication field in the received DCI is the bandwidth part B, the terminal is switched from the bandwidth part A to the bandwidth part B, and then the data scheduled in the DCI is transmitted on the bandwidth part B; when the terminal operates on the bandwidth part A, the bandwidth part index in the received DCI indicates that the bandwidth part indicated by the field is the bandwidth part A, and then the terminal transmits the data scheduled in the DCI on the bandwidth part A.

It should be appreciated that the switching of the bandwidth portion requires consideration of the switching delay due to adjustment of parameters such as the sampling rate, the voltage used for the voltage controlled oscillator, etc.

(2) Bandwidth portion activation/deactivation of granularity

The activation/deactivation of the granularity by the bandwidth parts may be based on the activation/deactivation of the granularity by the bandwidth parts. Activating all bandwidth portions paired with an upstream bandwidth portion when the upstream bandwidth portion is activated; when a downstream bandwidth portion is activated, all bandwidth portions paired with the downstream bandwidth portion are activated. Similarly, when an upstream bandwidth portion is deactivated, all bandwidth portions paired with the upstream bandwidth portion are deactivated; when a downstream bandwidth portion is deactivated, all bandwidth portions paired with the downstream bandwidth portion are deactivated.

Or, another equivalent way of describing, activating a pair of bandwidth parts, activating all bandwidth parts in the pair of bandwidth parts; deactivating the pair of bandwidth portions, deactivating all bandwidth portions in the pair of bandwidth portions.

(3) Activation/deactivation of bandwidth part packet pairing granularity

This activation/deactivation method is based on a second wideband partial grouping scheme.

And when a bandwidth part distribution group is activated, activating a first activated uplink bandwidth part in an uplink bandwidth part distribution group in the bandwidth part distribution group, and activating a first activated downlink bandwidth part in a downlink bandwidth part distribution group in the bandwidth part distribution group. The first activated uplink bandwidth part in the uplink bandwidth part packet may be a preconfigured bandwidth part, or a bandwidth part configured by the network device for the terminal through signaling, and the first activated downlink bandwidth part in the downlink bandwidth part packet may be a preconfigured bandwidth part, or a bandwidth part configured by the network device for the terminal through signaling.

Alternatively, a first active bandwidth part pair is activated when a bandwidth part pair is activated, the upstream bandwidth part in the first active bandwidth part pair being included in the upstream bandwidth part packet in the bandwidth part pair, and the downstream bandwidth part in the first active bandwidth part pair being included in the downstream bandwidth part packet in the bandwidth part pair. The first active bandwidth part pair may be a preconfigured bandwidth part pair, or a bandwidth part pair configured for the terminal by the network device through signaling.

(4) Activation/deactivation of bandwidth part packet granularity

Based on a first bandwidth part grouping scheme

When a bandwidth part packet is activated, a first activated downlink bandwidth part and a first activated uplink bandwidth part in the bandwidth part packet are activated. The first activated uplink bandwidth part may be one or more preconfigured bandwidth parts, or one or more bandwidth parts configured for the terminal by the network device through signaling; the first activated downlink bandwidth part may be one or more preconfigured bandwidth parts, or one or more bandwidth parts configured for the terminal by the network device through signaling.

Alternatively, when one bandwidth part packet is activated, the first activated bandwidth part pair in the bandwidth part packet is activated. The first pair of bandwidth portions includes an upstream bandwidth portion and a downstream bandwidth portion. The first active bandwidth part pair may be a preconfigured bandwidth part pair, or a bandwidth part pair configured for the terminal by the network device through signaling. When a bandwidth part pair is activated, all bandwidth parts in the bandwidth part pair are activated.

Based on a second bandwidth part grouping scheme

When an upstream bandwidth part packet is activated, a first activated upstream bandwidth part in the upstream bandwidth part packet is activated. Further, a first activated downlink bandwidth part in the downlink bandwidth part packet corresponding to the uplink bandwidth part packet may be activated. Similarly, when a downlink bandwidth part packet is activated, a first activated downlink bandwidth part in the downlink bandwidth part packet is activated. Further, a first activated upstream bandwidth part in an upstream bandwidth part packet corresponding to the downstream bandwidth part packet may be activated. The first activated uplink bandwidth part in the uplink bandwidth part packet may be a preconfigured bandwidth part, or a bandwidth part configured for the terminal by the network device through signaling; the first activated downlink bandwidth part in the downlink bandwidth part packet may be a preconfigured bandwidth part, or a bandwidth part configured for the terminal by the network device through signaling.

Or, when activating an upstream bandwidth part packet, activating a downstream bandwidth part packet corresponding to the upstream bandwidth part packet, and activating a first activated bandwidth part pair, wherein the upstream bandwidth part in the first activated bandwidth part pair is included in the upstream bandwidth part packet, and the downstream bandwidth part in the first activated bandwidth part pair is included in the downstream bandwidth part packet. Similarly, when a downlink bandwidth part packet is activated, an uplink bandwidth part packet corresponding to the downlink bandwidth part packet is activated, and a first activated bandwidth part pair is activated, wherein an uplink bandwidth part in the first activated bandwidth part pair is included in the uplink bandwidth part packet, and a downlink bandwidth part in the first activated bandwidth part pair is included in the downlink bandwidth part packet. The first active bandwidth part pair may be a preconfigured bandwidth part pair, or a bandwidth part pair configured for the terminal by the network device through signaling.

It should be understood that, in the present application, if at least one bandwidth part in one bandwidth part packet is in an activated state, the bandwidth part packet is considered to be in an activated state, and if all the bandwidth parts in one bandwidth part packet are in a deactivated state, the bandwidth part is considered to be in a deactivated state.

It is also to be understood that deactivation may be understood as not transmitting data, but that the bandwidth portion may still be active when not transmitting data. For example, in TDM mode, a terminal uses only the bandwidth part of one of the bandwidth part packets for data transmission at a given time. In addition, the terminal needs to blindly detect the downlink control channel on the activated downlink bandwidth portion, but not on the deactivated downlink bandwidth portion, and in the subsequent evolution, the terminal may not blindly detect the downlink control channel on the activated downlink bandwidth portion, for example, in the case of supporting the inter-bandwidth packet scheduling. Cross-bandwidth portion packet scheduling and self-contained scheduling for bandwidth portion packets are explained in detail below.

It should be understood that the bandwidth part packet may have the characteristics of a self-contained transmission. The self-contained transmission means that when the downlink control signaling is used for activating/deactivating the granularity of the bandwidth part, or the downlink control signaling is used for activating/deactivating the granularity of the bandwidth part, namely, switching the bandwidth part, for the first bandwidth part grouping scheme, the bandwidth part carrying the downlink control signaling and the bandwidth part indicated by the downlink control signaling belong to the same bandwidth part grouping; for the second wideband section grouping scheme, when the bandwidth section indicated by the downlink control signaling is the downlink wideband section, the bandwidth section carrying the downlink control signaling and the bandwidth section indicated by the downlink control signaling belong to the same downlink wideband section grouping, and when the bandwidth section indicated by the downlink control signaling is the uplink wideband section, the bandwidth section carrying the downlink control signaling and the bandwidth section indicated by the downlink control signaling belong to the paired downlink wideband section grouping and uplink wideband section grouping, respectively.

It should also be understood that the bandwidth part packets may also support the property of scheduling across bandwidth part packets. The cross-bandwidth part packet scheduling means that when data scheduling is performed through a downlink control signaling, for a first bandwidth part packet scheme, a bandwidth part carrying the downlink control signaling and a bandwidth part indicated by the downlink control signaling belong to different bandwidth part packets; for the second bandwidth part grouping scheme, when the bandwidth part indicated by the downlink control signaling is the downlink bandwidth part, the bandwidth part carrying the downlink control signaling and the bandwidth part indicated by the downlink control signaling belong to different downlink bandwidth part groups, and when the bandwidth part indicated by the downlink control signaling is the uplink bandwidth part, the downlink bandwidth part group carrying the bandwidth part of the downlink control signaling and the bandwidth part indicated by the downlink control signaling belong to downlink bandwidth part groups and uplink bandwidth part groups which are not paired.

In the embodiment of the present application, the activation/deactivation of the across-bandwidth part packet is similar to the across-bandwidth part packet scheduling, and refers to when the activation/deactivation of the bandwidth part granularity, the bandwidth part pair granularity, or the bandwidth part packet granularity is performed through downlink control signaling.

4. Initial access bandwidth portion

The initial access bandwidth part comprises an initial access downlink bandwidth part and an initial access uplink bandwidth part and is used for the terminal to perform initial access and establish connection with the network equipment.

The initial access downlink bandwidth part is determined by a Master Information Block (MIB) notification. For example, the terminal finds the synchronization signal block by blindly detecting the synchronization signal grid, the information carried in the MIB in the synchronization signal block includes an offset between a lowest position of a frequency domain of an initially accessed downlink bandwidth part and a lowest position of a frequency domain of the synchronization signal block, and a bandwidth of the initially accessed downlink bandwidth part, and the terminal determines the initially accessed downlink bandwidth part according to the MIB. The terminal receives a first system Message (system information block 1, SIB 1), a Random Access Response (RAR), and a Message 4(Message 4) in the initial access downlink bandwidth part, as well as a scheduling signaling of these messages.

In another implementation, the frequency domain position and bandwidth of the bandwidth part of the initial access downlink carrier may be defined to be the same as the frequency domain position and bandwidth of a control channel resource set (core) of the scheduling SIB 1. At this time, the MIB may inform the offset between the lowest frequency-domain position of the CORESET and the lowest frequency-domain position of the synchronization signal block, and the bandwidth of the CORESET, to indirectly indicate the initial access downlink carrier bandwidth portion.

The initial access uplink bandwidth part is determined by SIB 1 notification. For example, the message carried in SIB 1 includes a first frequency offset (offset1) of a reference point a (reference point a) with respect to a reference frequency position (e.g., the lowest subcarrier of the lowest RB of the synchronization signal block), a second frequency offset (offset2) of an uplink virtual carrier starting Resource Block (RB) with respect to the reference point a, a third frequency offset (offset3) of a starting RB of the initial access uplink bandwidth part with respect to the uplink virtual carrier starting RB, and a bandwidth of the initial access uplink bandwidth part. Wherein, a common RB index may be defined based on the reference point a, the common RBs are numbered from the common RB 0 in a direction of increasing frequency, and the center of the lowest subcarrier of the common RB 0 is the reference point a. The terminal transmits a Physical Random Access Channel (PRACH) and a Message 3(Message 3) in the initial access uplink bandwidth portion.

It should be understood that the initial access bandwidth part may be included in the main bandwidth part packet or may not be included in any bandwidth part packet, which is not limited in the embodiment of the present application. The concept of the primary bandwidth part packet is described first, and then the relationship between the primary bandwidth part packet and the initial access bandwidth part will be described in detail.

5. Main bandwidth partial group

The main bandwidth part packet may be defined as a bandwidth part packet including a bandwidth part for receiving a system message and/or a bandwidth part for initial access.

(1) The primary bandwidth part packet includes a bandwidth part for receiving system messages

The primary bandwidth part packet is used for the terminal to receive the system message, in other words, the terminal receives the system message (including DCI for scheduling the system message) in the primary bandwidth part packet. For example, the terminal may receive the system message on any active portion of the bandwidth. When the system supports the activation of a bandwidth segment at a given time, the terminal will receive a system message. In the scenario of multiple activated bandwidth parts, if a terminal still needs to receive a system message on each activated bandwidth part, firstly, because contents carried by the system messages are not different, multiple copies of the system messages can not be received and gain can not be obtained, and secondly, the terminal needs to blindly detect a plurality of DCIs for scheduling the system messages, so that the number of blindness detections of the terminal can be increased, and further, the energy consumption of the terminal is increased. Therefore, the behavior of the terminal can be limited, i.e. in the scenario of multiple active bandwidth portions, the terminal also only needs to receive one system message. In this context, the bandwidth portion for receiving the system message is defined as one of the active downstream bandwidth portions in the primary bandwidth portion packet. The non-master bandwidth part packet is referred to herein as a slave bandwidth part packet, but it should be understood that the master bandwidth part packet and the slave bandwidth part packet are merely exemplary names used for convenience of description, and other names may be used, and the present application does not limit the present invention.

Further, in the TDM mode, for the first wideband width portion packet scheme, the main wideband width portion packet is a wideband width portion packet currently used for data transmission, and for the second wideband width portion packet scheme, the main wideband width portion packet is a downstream wideband width portion packet currently used for downstream data transmission or a downstream wideband width portion packet corresponding to an upstream wideband width portion packet currently used for upstream data transmission. By dynamically switching the partial packet of the main bandwidth, the terminal can quickly respond to different services without increasing the parallel processing capacity. In addition, the terminal blindly detects downlink control information only in the main bandwidth part packet.

(2) The primary bandwidth part packet includes a part for initial access bandwidth

In this case, the initial access bandwidth part is included in the main bandwidth part packet, and thus, the main bandwidth part packet may be determined by performing division of the bandwidth part according to the position of the initial access bandwidth part. In particular, the network device may configure the primary bandwidth portion packet in either an implicit or explicit case.

If the main bandwidth part packet is implicitly configured, the terminal may determine whether the bandwidth part packet is the main bandwidth part packet according to whether the initial access downlink bandwidth part is included in the bandwidth part packet when the bandwidth part packet is configured. If the bandwidth part packet contains the initial access downlink bandwidth part, the bandwidth part packet is a main bandwidth part packet; conversely, the bandwidth part packet is not a main bandwidth part packet.

If the primary bandwidth portion packet is explicitly configured, the network device and the terminal may associate the initial access bandwidth portion into the primary bandwidth portion packet.

For the case of the display configuration, for example, the initial access bandwidth part is bandwidth part 0, and the network device is additionally configured with 3 bandwidth parts, i.e., bandwidth part 1, bandwidth part 2, and bandwidth part 3. The network device configures 2 bandwidth part packets, wherein a bandwidth part packet 1 includes a bandwidth part 1, a bandwidth part packet 2 includes a bandwidth part 2 and a bandwidth part 3, and the network device configures the bandwidth part packet 1 as a main bandwidth part packet, and then the bandwidth part packet 1 further includes an initial access downstream bandwidth part, that is, the bandwidth part packet 1 includes a bandwidth part 0 and a bandwidth part 1, and the bandwidth part packet 2 includes a bandwidth part 2 and a bandwidth part 3.

As another example, the initial access bandwidth part is bandwidth part 0, and the network device is additionally configured with 4 bandwidth parts, that is, bandwidth part 1, bandwidth part 2, bandwidth part 3, and bandwidth part 4. The network device configures 2 a bandwidth part packet, wherein the bandwidth part packet 1 includes a bandwidth part 1 and a bandwidth part 2, the bandwidth part packet 2 includes a bandwidth part 3 and a bandwidth part 4, and the network device configures the bandwidth part packet 1 as a main bandwidth part packet, then the bandwidth part packet 1 further includes an initial access downstream bandwidth part, i.e. the bandwidth part packet 1 includes a bandwidth part 0, a bandwidth part 1 and a bandwidth part 2, and the bandwidth part packet 2 includes a bandwidth part 3 and a bandwidth part 4.

It should be appreciated that configuring the initial access downlink bandwidth part in one downlink bandwidth part packet is advantageous to ensure the self-contained transmission characteristics of the bandwidth part packet, especially in case that the terminal is configured with only one (downlink) bandwidth part packet. When the bandwidth part is allowed to be switched to the initial access downlink bandwidth part by the indication of the downlink control signaling, the initial access downlink bandwidth part needs to be configured in one downlink bandwidth part packet. When the terminal is configured with only one (downstream) bandwidth part packet, the bandwidth part packet may also be defaulted as the main bandwidth part packet.

In the application, the bandwidth part group where the initial access bandwidth part is located is defined as the main bandwidth part group, which is beneficial to saving the overhead of sending the system message on the network equipment side. One possible application scenario is FDM mode, where the terminal transmits data using these active bandwidth portions in parallel. Because the network device must send the system message on the initial access downlink bandwidth part, that is, the bandwidth part packet in which the initial access downlink bandwidth part is located necessarily includes the system message, and the bandwidth part packet is defined as the main bandwidth part packet, the network device can be made to send the system message without other bandwidth part packets, thereby saving the overhead of the system message in the network.

(3) The initial access bandwidth portion is not included in any bandwidth portion packet

In this case, the network device needs to indicate the primary bandwidth portion packet. The definition may also be modified as: the initial access bandwidth portion is not in the main bandwidth portion packet.

For example, the initial access bandwidth part is bandwidth part 0, and the network device is additionally configured with 4 bandwidth parts, i.e. bandwidth part 1, bandwidth part 2, bandwidth part 3 and bandwidth part 4. The network device configures 2 a bandwidth part packet, wherein the bandwidth part packet 1 includes a bandwidth part 1 and a bandwidth part 2, the bandwidth part packet 2 includes a bandwidth part 3 and a bandwidth part 4, and the network device configures the bandwidth part packet 1 as a main bandwidth part packet, the terminal is finally configured with: a bandwidth part packet 1 including a bandwidth part 1 and a bandwidth part 2, a bandwidth part packet 2 including a bandwidth part 3 and a bandwidth part 4, and an initial access bandwidth part independent of any one of the bandwidth part packets, i.e., a bandwidth part 0.

It should be appreciated that configuring the initial access downstream bandwidth portion outside of any one bandwidth portion packet facilitates dynamically switching the main bandwidth portion packet. In TDM mode, i.e. the terminal uses only one of the plurality of bandwidth part packets for data transmission at a given time, for the first bandwidth part packet scheme the main bandwidth part packet is the bandwidth part packet currently used for data transmission, for the second bandwidth part packet scheme the main bandwidth part packet is the downlink bandwidth part packet currently used for downlink data transmission or the downlink bandwidth part packet corresponding to the uplink bandwidth part packet currently used for uplink data transmission. Through the dynamic switching of the main bandwidth part packet, the terminal can quickly respond to different services without increasing the parallel processing capacity, and the characteristic of self-contained transmission of the main bandwidth part packet is also favorably ensured. In addition, the terminal may blindly detect downlink control information only in the primary bandwidth part packet.

In one possible implementation, the relationship between the initial access bandwidth portion and the bandwidth portion grouping may be determined according to different situations, i.e. the above case (2) or case (3) is adopted.

Specifically, when the number of bandwidth parts additionally configured by the network device is less than N, the initial access bandwidth part is in the main bandwidth part group, i.e. the above case (2); when the number of bandwidth parts additionally configured by the network device is greater than or equal to N, the initial access bandwidth part may not be included in any one bandwidth part packet, i.e. case (3) above.

For example, only 2 bits at most in the downlink control information are used to indicate the configured bandwidth part, and therefore, when the number of the additionally configured bandwidth parts is less than 4(N is 4), it is necessary to support indicating the initial access bandwidth part by the downlink control information; and when the number of the additionally configured bandwidth parts is greater than or equal to 4, the indication of the initial access bandwidth part through the downlink control information may not be supported.

As an alternative embodiment, in TDM mode, the initial access bandwidth part may not be in any of the bandwidth part packets, or the initial access bandwidth part may not be in the main bandwidth part packet; in FDM mode, the initial access bandwidth portion may be in a primary bandwidth portion grouping.

On the basis of the above, the network device may configure the following two limiting conditions:

1. the primary bandwidth portion packets cannot be scheduled across bandwidth portion packets

For the first bandwidth part packet scheme, if data a is transmitted on one bandwidth part of the main bandwidth part packet, the scheduling information for data a comes from one bandwidth part in the main bandwidth part packet. For the second bandwidth part grouping scheme, if the uplink data B is transmitted on one of the uplink bandwidth part groups corresponding to the main bandwidth part group, the scheduling information of the uplink data B is from the main bandwidth part group, and if the downlink data C is transmitted on one of the downlink bandwidth part groups in the main bandwidth part group, the scheduling information of the downlink data C is from the main bandwidth part group.

2. Activating/deactivating bandwidth parts in slave bandwidth part packets across bandwidth part packets by master bandwidth part packets

Such conditions are described in detail below in connection with method 200.

For the understanding of the embodiments of the present application, a communication system suitable for the embodiments of the present application will be briefly described with reference to fig. 1. Fig. 1 is a schematic diagram of a communication system 100 suitable for use with embodiments of the present application. As shown in fig. 1, the communication system 100 includes at least two communication devices, for example, a network device 110 and a terminal 120, wherein data communication between the network device 110 and the terminal 120 can be performed through a wireless connection.

On the basis of the above bandwidth part grouping, how to realize the activation/deactivation of multiple bandwidth parts has become a technical problem to be solved. In view of the above, the present application provides a communication method, which can activate multiple bandwidth parts, thereby improving system performance. The communication method provided by the present application is described in detail below with reference to fig. 2 to 7.

Fig. 2 is an exemplary flow chart of a communication method 200 according to an embodiment of the present application. It should be understood that the network devices in the method shown in fig. 2 may correspond to the network devices in the system 100 shown in fig. 1, and the terminal may correspond to any one of the terminals shown in fig. 1.

S210, the network device determines first control information, wherein the first control information is used for indicating a second bandwidth part in a second bandwidth part packet, and the second bandwidth part is an uplink bandwidth part or a downlink bandwidth part;

s220, the network device sends the first control information to the terminal through the first bandwidth part in the first bandwidth part packet, and correspondingly, the terminal receives the first control information through the first bandwidth part in the first bandwidth part packet;

s230, the terminal activates the second bandwidth part in the second bandwidth part packet according to the first control information.

Optionally, the first bandwidth part packet and the second bandwidth part packet each comprise an upstream bandwidth part and a downstream bandwidth part.

Specifically, the network device may indicate the second bandwidth part packet by the first bandwidth part in the first bandwidth part packet, and the terminal device may implement an activation or deactivation operation of the bandwidth part in the second bandwidth part packet according to the current state of the indicated second bandwidth part packet. In this embodiment, if all bandwidth parts in the second bandwidth part packet are deactivated, the terminal may activate the second bandwidth part in the second bandwidth part packet, so that the second bandwidth part packet is activated.

The communication method according to the embodiment of the present application can be implemented simply by indicating the second bandwidth part group with the first bandwidth part in the first bandwidth part group, thereby improving the system performance.

In another possible implementation, if there is at least one bandwidth part in a second bandwidth part packet in which the second bandwidth part is active, the terminal may deactivate the active bandwidth part in the second bandwidth part packet, so that the second bandwidth part packet is deactivated. In this case, the second bandwidth part may be activated or deactivated, which is not limited in this embodiment of the application.

As an alternative embodiment, the downstream bandwidth part in the first bandwidth part packet comprises a bandwidth part for receiving system messages and/or a bandwidth part for initial access.

Specifically, the first bandwidth part group may correspond to a master bandwidth part group, and the second bandwidth part group may correspond to a slave bandwidth part group. In this context, the activation/deactivation of the slave bandwidth part packet across the master bandwidth part packet may be specifically divided into the following two cases.

In a first case, when all bandwidth parts in the slave bandwidth part packet are deactivated, i.e. the terminal does not blindly detect the search space corresponding to any bandwidth part in the slave bandwidth part packet, the network device activates the bandwidth parts in the slave bandwidth part packet using the first control signaling sent in the search space corresponding to the active bandwidth part in the master bandwidth part packet. For the bandwidth part granularity or the activation of the granularity by the bandwidth part, the network device may indicate the second bandwidth part in the slave bandwidth part packet using the first control signaling sent in the search space corresponding to the activated bandwidth part in the master bandwidth part packet, and the terminal may activate the second bandwidth part in the slave bandwidth part packet. For activation of the bandwidth part packet granularity or the bandwidth part packet pairing granularity, the network device may indicate the slave bandwidth part packet using the first control signaling sent in the search space corresponding to the activated bandwidth part in the master bandwidth part packet, and the terminal may activate the second bandwidth part in the slave bandwidth part packet.

In a second case, when at least one bandwidth part is active in the sub-bandwidth part packet and the terminal is configured in the FDM mode, the terminal may blindly detect a search space corresponding to the active bandwidth part in the sub-bandwidth part packet. The search space may be in the master bandwidth part group, and in particular, the search space corresponding to the active bandwidth part in the slave bandwidth part group may be shared with the search space corresponding to the active bandwidth part in the master bandwidth part group. For the bandwidth part granularity or the deactivation of the granularity by the bandwidth part, the network device may indicate the bandwidth part in the slave bandwidth part packet by using indication signaling sent in a search space corresponding to the active bandwidth part in the master bandwidth part packet, and then the terminal may deactivate the active bandwidth part in the slave bandwidth part packet. In particular, the indicated bandwidth part may or may not be the same as the bandwidth part activated from the bandwidth part grouping. For deactivation of the bandwidth part packet granularity or the bandwidth part packet pairing granularity, the network device may indicate the slave bandwidth part packet using indication signaling sent in a search space corresponding to the active bandwidth part in the master bandwidth part packet, and the terminal may deactivate the active bandwidth part in the slave bandwidth part packet.

As an optional embodiment, the first control information is received by the terminal through a first search space corresponding to an active bandwidth part in the first bandwidth part packet, where the first search space is further used for the terminal to receive second control information, and the second control information is used for indicating the uplink bandwidth part and/or the downlink bandwidth part in the first bandwidth part packet. The bandwidth part indicated by the second control information is also referred to herein as a third bandwidth part.

Optionally, the payload size of the first control information and the payload size of the second control information are the same.

Specifically, the network device may send the first control information to the terminal through a first search space corresponding to an active bandwidth part in the first bandwidth part packet, and may also send second control information indicating a bandwidth part in the first bandwidth part packet to the terminal through the first search space, and accordingly, the terminal receives the first control information through the first search space, and may also receive the second control information through the first search space.

I.e. the active bandwidth part in the first bandwidth part packet corresponds to a first search space, which is also used for the terminal to receive second control information for the network device to perform self-contained scheduling, i.e. to schedule the bandwidth part in the first bandwidth part packet using the bandwidth part in the first bandwidth part packet. In other words, the search space employed by the network device for cross-bandwidth portion packet activation/deactivation and self-contained scheduling may be the same.

According to the communication method, the first bandwidth part in the first bandwidth part group is adopted to indicate the second bandwidth part in the second bandwidth part group, so that the activation of a plurality of bandwidth parts can be realized, the realization is simple, and meanwhile, the complexity of blind detection of a downlink control channel by a terminal is not increased, and the system performance is improved.

For ease of understanding, the self-contained scheduling case will be described first.

For the first bandwidth part grouping scheme, the second control information indicates the first bandwidth part grouping (namely the main bandwidth part grouping), and the terminal can regard the second control information as the bandwidth part switching signaling. When the third bandwidth part indicated by the second control information is an uplink bandwidth part and the third bandwidth part is different from the currently activated uplink bandwidth part of the terminal, the terminal may deactivate the currently activated uplink bandwidth part and activate the third bandwidth part indicated by the second control information; when the third bandwidth portion indicated by the second control information is a downlink bandwidth portion and the third bandwidth portion is different from the currently activated downlink bandwidth portion of the terminal, the terminal may deactivate the currently activated downlink bandwidth portion and activate the third bandwidth portion indicated by the second control information.

For the second bandwidth part packet scheme, the second control information indicates the first bandwidth part packet (i.e. the primary bandwidth part packet), and the terminal may switch the signaling for the bandwidth part according to the scheduling signaling. When the third bandwidth portion indicated by the second control information is different from the currently activated downlink bandwidth portion of the terminal, the terminal may deactivate the currently activated downlink bandwidth portion and activate the third bandwidth portion indicated by the second control information.

It should be understood that for the second wideband section packet scheme, there is also a case where the second control information may indicate that the terminal may consider the scheduling signaling as the bandwidth section switching signaling when the uplink wideband section packet corresponding to the first wideband section packet is indicated. When the uplink bandwidth portion indicated by the second control information is different from the uplink bandwidth portion currently activated by the terminal, the terminal may deactivate the currently activated uplink bandwidth portion and activate the uplink bandwidth portion indicated by the second control information.

It should be appreciated that the terminal may activate the respective bandwidth part in different ways for different bandwidth part grouping schemes. The method employed by the first wideband partial grouping scheme is first described below.

For the granularity of the bandwidth part or the activation of the granularity by the bandwidth part, as an optional embodiment, the method further includes: the terminal activates a fourth bandwidth part, which is at least one uplink bandwidth part in the second bandwidth part packet; wherein the second bandwidth part is a downstream bandwidth part and the fourth bandwidth part is a counterpart upstream bandwidth part of the second bandwidth part, or the fourth bandwidth part is a preconfigured upstream bandwidth part in the second bandwidth part group; as an optional embodiment, the method further comprises: the terminal activates a fifth bandwidth part, which is at least one downlink bandwidth part in the second bandwidth part packet; wherein the second bandwidth part is an upstream bandwidth part and the fifth bandwidth part is a counterpart downstream bandwidth part of the second bandwidth part, or the fifth bandwidth part is a preconfigured downstream bandwidth part in the second bandwidth part grouping.

When the first control information indicates the second bandwidth part packet (i.e., the slave bandwidth part packet), the terminal may activate signaling for the bandwidth part in the second bandwidth part packet as viewed from the first control information. When the second bandwidth part indicated by the first control information is an uplink bandwidth part, the terminal activates the indicated uplink bandwidth part, i.e., the second bandwidth part. If the second bandwidth part is not paired with one or more downlink bandwidth parts, the terminal may activate a preconfigured downlink bandwidth part (also referred to herein as a first activated downlink bandwidth part) in the second bandwidth part group, otherwise, the terminal may activate a downlink bandwidth part paired therewith, i.e., a fifth bandwidth part.

Similarly, when the second bandwidth part indicated by the first control information is the downlink bandwidth part, the terminal activates the indicated downlink bandwidth part, i.e. the second bandwidth part. If the second bandwidth part is not paired with one or more uplink bandwidth parts, the terminal may activate a preconfigured uplink bandwidth part (also referred to herein as a first activated uplink bandwidth part) in the second bandwidth part group, otherwise, the terminal may activate the uplink bandwidth part paired therewith, i.e., a fourth bandwidth part.

As an optional embodiment, for the activation of the granularity of the bandwidth part packet or the granularity of the pairing of the bandwidth part packet, the method further includes: the terminal activates a fourth bandwidth part, which is at least one uplink bandwidth part in the second bandwidth part packet; the second bandwidth part is a preconfigured downlink bandwidth part, and the fourth bandwidth part is a preconfigured uplink bandwidth part; as an optional embodiment, the method further comprises: the terminal activates a fifth bandwidth part, which is at least one downlink bandwidth part in the second bandwidth part group; wherein the second bandwidth part is a preconfigured uplink bandwidth part and the fifth bandwidth part is a preconfigured downlink bandwidth part.

When the first control information indicates the second bandwidth part packet (i.e., the slave bandwidth part packet), the terminal may activate signaling for the bandwidth part in the second bandwidth part packet as viewed from the first control information. The terminal activates a preconfigured downlink bandwidth part (also referred to herein as a first activated downlink bandwidth part) and a preconfigured uplink bandwidth part (also referred to herein as a first activated uplink bandwidth part) in the second bandwidth part packet.

For the second bandwidth part grouping scheme, when the second bandwidth part grouping indicated by the first control information is an uplink bandwidth part grouping, the terminal can consider the first control information to activate signaling for the bandwidth part in the second bandwidth part grouping. For the granularity of the bandwidth part or the activation of the granularity by the bandwidth part, the terminal may activate the uplink bandwidth part indicated by the first control information, i.e., the second bandwidth part. If the second bandwidth part is not paired with one or more downlink bandwidth parts, the terminal may activate a first activated downlink carrier bandwidth part in the downlink bandwidth part packet corresponding to the second bandwidth part packet, and conversely, the terminal may activate a downlink bandwidth part paired with the second bandwidth part in the downlink bandwidth part packet corresponding to the second bandwidth part packet. For the activation of the bandwidth part packet granularity or the bandwidth part packet pairing granularity, the terminal may activate the preconfigured uplink bandwidth part (also referred to herein as the first activated uplink bandwidth part) in the second bandwidth part packet, i.e., the second bandwidth part, and the terminal may further activate the preconfigured downlink bandwidth part (also referred to herein as the first activated downlink bandwidth part) in the second bandwidth part packet.

Similarly, when the second bandwidth part packet indicated by the first control information is a downlink bandwidth part packet, the terminal may consider the first control information to activate signaling for the bandwidth part in the second bandwidth part packet. For the granularity of the bandwidth part or the activation of the granularity by the bandwidth part, the terminal may activate the downlink bandwidth part indicated by the first control information, i.e., the second bandwidth part. If the second bandwidth part is not paired with one or more uplink bandwidth parts, the terminal may activate a first activated uplink carrier bandwidth part in the uplink bandwidth part packet corresponding to the second bandwidth part packet, and conversely, the terminal may activate an uplink bandwidth part paired with the second bandwidth part in the uplink bandwidth part packet corresponding to the second bandwidth part packet. For the activation of the granularity of the bandwidth part packet or the granularity of the pairing of the bandwidth part packet, the second bandwidth part packet is an uplink bandwidth part packet, the terminal may activate a preconfigured uplink bandwidth part (also referred to as a first activated uplink bandwidth part) in the second bandwidth part packet, i.e. a second bandwidth part, the terminal may further activate a preconfigured downlink bandwidth part (also referred to as a first activated downlink bandwidth part) in a downlink bandwidth part packet corresponding to the second bandwidth part packet, or the second bandwidth part packet is a downlink bandwidth part packet, the terminal may activate a preconfigured downlink bandwidth part (also referred to as a first activated downlink bandwidth part) in the second bandwidth part packet, i.e. a second bandwidth part, the terminal may further activate a preconfigured uplink bandwidth part (also referred to as a first activated downlink bandwidth part) in an uplink bandwidth part packet corresponding to the second bandwidth part packet (also referred to as a first activated downlink bandwidth part) in the uplink bandwidth part packet corresponding to the second bandwidth part packet Activating the upstream bandwidth portion).

Further, when the terminal is configured in the FDM mode, the terminal may blindly detect a search space corresponding to the active bandwidth part in the second bandwidth part packet; when the terminal is configured in the TDM mode, the terminal may not blindly detect a search space corresponding to the active bandwidth part in the second bandwidth part packet.

As an optional embodiment, the method further comprises:

the terminal receives third control information through the first bandwidth part, wherein the third control information is used for indicating any bandwidth part in the second bandwidth part group;

and the terminal deactivates all bandwidth parts in the second bandwidth part group according to the third control information.

Specifically, for the bandwidth part granularity or the activation of the granularity by the bandwidth part, after the second bandwidth part packet is activated, the terminal may further receive third control information, which may indicate any bandwidth part in the second bandwidth part packet, and since the second bandwidth part in the second bandwidth part packet has been activated and the second bandwidth part packet is in an activated state, the terminal may determine the third control information as deactivation indication information, thereby deactivating the already activated bandwidth part in the second bandwidth part packet.

It should be understood that the bandwidth part indicated by the third control information may be the second bandwidth part, or may be another bandwidth part in the second bandwidth part group, which is not limited in this embodiment of the application.

For the activation of the bandwidth part grouping granularity or the bandwidth part grouping pairing granularity, after the second bandwidth part grouping is activated, the terminal may further receive third control information, the third control information may indicate the second bandwidth part grouping, since the second bandwidth part in the second bandwidth part grouping has been activated, the second bandwidth part grouping is in an activated state, and the terminal may determine the third control information as deactivation indication information, thereby deactivating the bandwidth part in the second bandwidth part grouping that has been activated.

As an optional embodiment, the first control information is further used to indicate to activate a bandwidth part in the second bandwidth part packet, and the third control information is further used to indicate to deactivate a bandwidth part in the second bandwidth part packet.

Specifically, the network device may indicate the terminal to perform the activation or deactivation operation in a display manner, and in a possible implementation manner, the network device may indicate the terminal to activate the bandwidth part in the second bandwidth part group through the first control information, and may further indicate the terminal to deactivate the bandwidth part in the second bandwidth part group through the third control information after the second bandwidth part group is activated.

The terminal is indicated to execute the activation or deactivation operation through the display of the network equipment, so that the understanding consistency of the network equipment and the terminal can be ensured, and errors are not easy to occur.

As an alternative embodiment, the first control information and the third control information have different formats. For example, the first control information may be activation signaling of bandwidth part granularity or bandwidth part pair granularity, and the third control information may be deactivation signaling of bandwidth part grouping granularity or bandwidth part grouping pair granularity.

As an optional embodiment, a value of a first bit field of the first control information is a first value, and a value of the first bit field of the third control information is a second value. Optionally, the first control information and the third control information have the same format.

Specifically, the network device may instruct the terminal to perform an activation or deactivation operation by taking a value of a first bit field in the control information, where the first bit field may include one or more bits. The network device and the terminal may well define that a value of the first bit field corresponding to the activation operation is a first value, and a value of the first bit field corresponding to the deactivation operation is a second value, so in this embodiment of the present application, a value of the first bit field of the first control information is a first value, and a value of the first bit field of the third control information is a second value. For example, the first bit field is a K-bit frequency domain resource allocation field, the first value is K-bit t1, the second value is K-bit t2, specifically, t1 equals 0, and t2 equals 1. For another example, the first bit field is a K-bit frequency domain resource allocation field, the first value is K-bit t1 or K-bit t2, and the second value is another value, specifically, t1 is equal to 0 and t2 is equal to 1, but the embodiment of the present invention is not limited thereto.

As an alternative embodiment, the third control information is received by the terminal through the first search space corresponding to the active bandwidth part in the first bandwidth part group. Optionally, the payload size of the third control information and the second control information is the same.

Specifically, the network device may send the third control information to the terminal through the first search space corresponding to the active bandwidth part in the first bandwidth part packet, and correspondingly, the terminal receives the third control information sent by the network device through the first search space. In other words, the search space employed by the network device for cross-bandwidth partial packet deactivation and self-contained scheduling may be the same.

Therefore, the deactivation of a plurality of bandwidth parts can be realized, the realization is simple, the complexity of blind detection of the downlink control channel by the terminal is not increased, and the system performance is improved.

As an optional embodiment, the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

Specifically, the network device may indicate the second bandwidth part in the second bandwidth part packet by carrying an index in the first control information. Thus, the first control information may also carry an index of the second bandwidth part packet and/or an index of the second bandwidth part. Since the indexing of the bandwidth part packets can be configured in a number of different ways, it is explained in detail below for different situations.

When the design of the bandwidth part grouping is a first bandwidth part grouping scheme, the N bandwidth parts configured for the terminal can be configured or represented as G bandwidth part grouping, and the network equipment can pass ceil (log)₂(G) Bit information indicates an index of the bandwidth part packet. Where ceil () represents rounding up. Such as a watch1, the terminal is configured with 2 bandwidth part packets in total, the first and second bandwidth part packets having indices of 0 and 1, respectively. Further, the network device may also pass through the ceil (log)₂(G) Bit information and padding bits greater than or equal to 1 bit indicate an index of the bandwidth part packet.

TABLE 1

Bandwidth portion grouping	Indexing
		The first bandwidth part group	0
Second bandwidth part packet	1

When the design of the bandwidth part grouping is the second bandwidth part grouping scheme, the N bandwidth parts configured for the terminal may be configured or represented as G bandwidth part groups including G_ULA partial packet of upstream bandwidth and G_DLAnd grouping the downlink bandwidth parts. The network device may number the bandwidth part packets by either of the following two bandwidth part packet numbering designs.

In the wide-part packet numbering scheme one, the number may be by ceil (log)₂(G) Bit information indicates an index of the bandwidth part packet. As shown in Table 2, when the terminal is allocated with 4 bandwidth part packets of the upstream bandwidth part packet A and the upstream bandwidth part packet B, the downstream bandwidth part packet C and the downstream bandwidth part packet D, and the bandwidth part packets of the terminal are numbered, the upstream bandwidth part packet A, the downstream bandwidth part packet B, and the upstream bandwidth part packet B are allocated to the terminal,The indexes of the upstream bandwidth part packet B, the downstream bandwidth part packet C, and the downstream bandwidth part packet D may be 00, 01, 10, and 11, respectively. Further, the network device may also pass through the ceil (log)₂(G) Bit information and padding bits greater than or equal to 1 bit indicate an index of the bandwidth part packet.

TABLE 2

Bandwidth portion grouping	Indexing
		Uplink bandwidth part packet a	00
Uplink bandwidth partial packet B	01
		Downlink bandwidth segment packet C	10
Downlink bandwidth part packet D	11

In the design two with wide part grouping number, ceil (log) can be passed₂(G_UL) Bit information indicates an index of an upstream bandwidth part packet, which may be by ceil (log)₂(G_DL) Bit information indicates an index of a downstream bandwidth part packet. As shown in table 3, the terminal is configured with an upstream bandwidth part packet a and an upstream bandwidth part packet B, and the downstream bandwidth part packet C and the downstream bandwidth part packet D are 4 bandwidth part packets in total, and when the bandwidth part packets of the terminal are numbered, the indexes of the upstream bandwidth part packet a and the upstream bandwidth part packet B are set to be equal0 and 1, respectively, and the indices of the downlink bandwidth part packet C and the downlink bandwidth part packet D are 0 and 1, respectively. Further, the network device may also pass through the ceil (log)₂(G_UL) Bit information and padding bits greater than or equal to 1 bit indicate an index of the upstream bandwidth part packet; the network device may also pass through the ceil (log)₂(G_DL) Bit information and padding bits greater than or equal to 1 bit indicate an index of the downlink bandwidth part packet.

TABLE 3

Bandwidth portion grouping	Indexing
		Uplink bandwidth part packet a	0
Uplink bandwidth partial packet B	1
		Downlink bandwidth segment packet C	0
Downlink bandwidth part packet D	1

As an optional embodiment, after said activating said second bandwidth part in said second bandwidth part packet, said method further comprises: the terminal receives fourth control information through a second search space corresponding to the second bandwidth part; wherein the second bandwidth part is a downlink bandwidth part, and the fourth control information is used for indicating a sixth bandwidth part in the second bandwidth part packet.

Specifically, if the second bandwidth part is a downlink bandwidth part, after the terminal activates the second bandwidth part, the terminal may further receive fourth control information through a second search space corresponding to the second bandwidth part, where the fourth control information is used for performing self-contained scheduling, and indicates a sixth bandwidth part in a second bandwidth part packet, where the sixth bandwidth part is an uplink bandwidth part or a downlink bandwidth part.

As an optional embodiment, after said activating said second bandwidth part in said second bandwidth part packet, said method further comprises: the terminal receives fifth control information through a third search space corresponding to a seventh bandwidth part, where the fifth control information is used to indicate an eighth bandwidth part in the second bandwidth part packet, and the eighth bandwidth part is an uplink bandwidth part or a downlink bandwidth part; the second bandwidth part is an uplink bandwidth part, and the seventh bandwidth part is a paired downlink bandwidth part of the second bandwidth part, or the seventh bandwidth part is a downlink bandwidth part preconfigured in the second bandwidth part group.

Specifically, if the second bandwidth part is an uplink bandwidth part, after the terminal activates the second bandwidth part, the terminal may further receive fifth control information through a downlink bandwidth part paired with the second bandwidth part or a preconfigured downlink bandwidth part, where the fifth control information is used for performing self-contained scheduling, and indicates an eighth bandwidth part in the second bandwidth part packet, where the eighth bandwidth part is an uplink bandwidth part or a downlink bandwidth part.

For ease of understanding, the deactivation operation of the embodiments of the present application will be described in detail below.

In one possible implementation, the network device sends control information to the terminal over the bandwidth part of the first bandwidth part packet (i.e. the master bandwidth part packet), the control information indicating a second bandwidth part packet (i.e. the slave bandwidth part packet), the terminal receiving the first control information, deactivating all activated bandwidth parts in the second bandwidth part packet. Optionally, the first bandwidth part packet and the second bandwidth part packet each comprise an upstream bandwidth part and a downstream bandwidth part.

Specifically, the terminal device may deactivate the second bandwidth portion according to the current state of the second bandwidth portion indicated by the first control information. In the embodiment of the present application, assuming that there is at least one bandwidth part in a second bandwidth part packet in which a second bandwidth part is active, the terminal may deactivate the bandwidth part in the active state, so that the second bandwidth part packet is deactivated.

As an optional embodiment, the control information carries an index of the second bandwidth part packet.

For the first bandwidth part grouping scheme, when the index indicates the second bandwidth part grouping, the terminal can deactivate signaling for the bandwidth part in the second bandwidth part grouping according to the control information. Optionally, the control information may further indicate a bandwidth part in the second bandwidth part, and the bandwidth part indicated by the control information and the active bandwidth part in the second bandwidth part packet may be the same or different, which is not limited in this embodiment of the present application. The terminal deactivates the activated bandwidth part in the second bandwidth part packet according to the control information.

For the second bandwidth part grouping scheme, when the second bandwidth part grouping indicated by the index is an uplink bandwidth part grouping, the terminal can deactivate signaling for the bandwidth part in the second bandwidth part grouping according to the control information. Optionally, the control information may further indicate an upstream bandwidth part in the second bandwidth part, and the upstream bandwidth part indicated by the control information and the active upstream bandwidth part in the second bandwidth part packet may be the same or different. The terminal may deactivate the activated uplink bandwidth part in the second bandwidth part packet. Further, the terminal may deactivate the activated downlink bandwidth part in the downlink bandwidth part packet paired with the second bandwidth part packet.

Similarly, when the second bandwidth part packet indicated by the index is a downlink bandwidth part packet, the terminal may deactivate signaling for the bandwidth part in the second bandwidth part packet according to the control information. Optionally, the control information may also indicate a downlink bandwidth part in the second bandwidth part, and the downlink bandwidth part indicated by the control information and the activated downlink bandwidth part in the second bandwidth part packet may be the same or different. The terminal may deactivate the activated downstream bandwidth portion of the second bandwidth portion packet. Further, the terminal may deactivate the activated upstream bandwidth part in the upstream bandwidth part packet paired with the second bandwidth part packet.

As an alternative embodiment, the control information may not include the resource allocation field, or the resource allocation field in the control information is invalid. The terminal ignores the resource allocation field in the control information.

In another possible implementation, when there is at least one bandwidth part in the second bandwidth part packet (i.e., the slave bandwidth part packet) that is active and the second bandwidth part packet is the downstream bandwidth part packet, the network device may send control information indicating the first bandwidth part packet (i.e., the master bandwidth part packet) through the bandwidth part of the second bandwidth part packet, and the terminal may deactivate the active bandwidth part in the second bandwidth part packet according to the control information.

As an alternative embodiment, the control information carries an index of the first bandwidth part packet.

For the first bandwidth part grouping scheme, when the index indicates the first bandwidth part grouping, the terminal can deactivate signaling for the bandwidth part in the second bandwidth part grouping according to the control information. Optionally, the control information may also indicate a bandwidth part in the first bandwidth part, and the bandwidth part indicated by the control information and the activated bandwidth part in the first bandwidth part may be the same or different. The terminal may deactivate the activated bandwidth part in the second bandwidth part packet.

For the second bandwidth part grouping scheme, when the index indicates the first bandwidth part grouping, the terminal may consider the control information as deactivation signaling of the bandwidth part in the second bandwidth part grouping. Optionally, the control information may also indicate a downlink bandwidth part in the first bandwidth part, and the downlink bandwidth part indicated by the control information and the active bandwidth part in the first bandwidth part packet may be the same or different. The terminal may deactivate the activated downstream bandwidth portion of the second bandwidth portion packet. Further, the terminal may deactivate the activated upstream bandwidth part in the upstream bandwidth part corresponding to the second bandwidth part packet.

Similarly, when the index indicates the uplink bandwidth part packet corresponding to the first bandwidth part packet, the terminal may consider the control information as a deactivation signaling of the bandwidth part in the second bandwidth part packet. Optionally, the control information may also indicate an uplink bandwidth part in the first bandwidth part, and the uplink bandwidth part indicated by the control information and an activated uplink bandwidth part in an uplink bandwidth part packet corresponding to the first bandwidth part packet may be the same or different. The terminal may deactivate the activated downlink bandwidth part in the second bandwidth part packet. Further, the terminal may deactivate the activated uplink bandwidth part in the uplink bandwidth part packet corresponding to the second bandwidth part packet.

As an alternative embodiment, the control information may not include the resource allocation field, or the resource allocation field in the control information is invalid. The terminal ignores the resource allocation field in the control information.

Fig. 3 is an exemplary flow chart of another communication method 300 according to an embodiment of the present application. It should be understood that the network device in the method shown in fig. 3 may correspond to the network device in the system 100 shown in fig. 1, and the terminal may correspond to any one of the terminals shown in fig. 1.

S310, the network device determines sixth control information, where the sixth control information is used to indicate a tenth bandwidth part in a fourth bandwidth part packet, and there is also an eleventh bandwidth part in the fourth bandwidth part packet, and the eleventh bandwidth part is active;

s320, the network device sends the sixth control information through a ninth bandwidth part in a third bandwidth part packet, where the third bandwidth part packet and the fourth bandwidth part packet respectively include an upstream bandwidth part and a downstream bandwidth part; correspondingly, the terminal receives sixth control information through a ninth bandwidth part in the third bandwidth part packet;

s330, the terminal deactivates the eleventh bandwidth part and activates the tenth bandwidth part.

Specifically, the ninth bandwidth part belongs to the third bandwidth part packet, the tenth bandwidth part and the eleventh bandwidth part belong to the fourth bandwidth part packet, and the network device may transmit sixth control information to the terminal through the ninth bandwidth part indicating the tenth bandwidth part, wherein the tenth bandwidth part is deactivated, the ninth bandwidth part and the eleventh bandwidth part are activated, and the terminal detects the control information only on the ninth bandwidth part, and after receiving the sixth control information, the terminal may activate the tenth bandwidth part, deactivate the eleventh bandwidth part, while keeping the ninth bandwidth part activated, i.e., perform switching of the bandwidth parts in the fourth bandwidth part packet.

It should be understood that the ninth bandwidth part is a downlink bandwidth part, and the tenth bandwidth part and the eleventh bandwidth part may be an uplink bandwidth part or a downlink bandwidth part, which is not limited in this embodiment of the present application. In this application, the network device may directly or indirectly activate the tenth bandwidth part via the sixth control information, which is explained in detail below for two different bandwidth part grouping schemes.

For the first bandwidth part grouping scheme, when the eleventh bandwidth part is an upstream bandwidth part, the tenth bandwidth part may be an upstream bandwidth part; when the eleventh bandwidth part is a downstream bandwidth part, the tenth bandwidth part may be a downstream bandwidth part.

With the second bandwidth part grouping scheme, the tenth bandwidth part and the eleventh bandwidth part are both upstream bandwidth parts when the fourth bandwidth part is grouped into upstream bandwidth part groups, and are both downstream bandwidth parts when the fourth bandwidth part is grouped into downstream bandwidth part groups.

It should be understood that the third bandwidth part packet may be a master bandwidth part packet, and the fourth bandwidth part packet may be a slave bandwidth part packet, but the embodiment of the present application does not limit this. As an optional embodiment, the ninth bandwidth part, the tenth bandwidth part and the eleventh bandwidth part are all downlink bandwidth parts.

As an optional embodiment, after the terminal deactivates the eleventh bandwidth part and activates the tenth bandwidth part, the method further includes: the terminal receives control information through the ninth bandwidth part; or, the terminal receives control information through the tenth bandwidth part.

After the switching of the bandwidth part is completed, the terminal may continue to receive the control information by using the ninth bandwidth part, or may receive the control information by using the newly activated tenth bandwidth part, which is not limited in this embodiment of the application.

It will be appreciated that continuing to receive control information using the ninth bandwidth part, it may be defined that the third bandwidth part packet in which the ninth bandwidth part is located is a main bandwidth part packet, i.e. the terminal receives system messages on the ninth bandwidth part. Therefore, the method is beneficial to sharing the system messages among different terminals, and reduces the extra overhead caused by sending multiple copies of the system messages on the network side. On the contrary, the tenth bandwidth part is adopted to receive the control information, so that the self-contained transmission characteristic of the grouping of the bandwidth part can be ensured, and the energy conservation of the terminal is facilitated.

As an optional embodiment, the sixth control information includes a resource allocation field, and the resource allocation field is used to instruct the terminal to receive the control information through the tenth bandwidth part.

Specifically, the network device may instruct the terminal to receive the control information through the tenth bandwidth part through the resource allocation field in the sixth control information. In this case, the sixth control information may be non-zero scheduling downlink control information (non-zero assignment DCI). The terminal may transmit data on the resources indicated by the resource allocation field.

As an optional embodiment, the sixth control information carries an index of the fourth bandwidth part packet and/or an index of the tenth bandwidth part.

In particular, the network device may indicate the tenth bandwidth part in the fourth bandwidth part packet on display.

Optionally, the sixth control information may also be a handover command of the primary bandwidth part packet. The following is a detailed description of two different bandwidth part grouping schemes.

For the first bandwidth part packet scheme, the terminal may consider the sixth control information as the handover signaling of the master bandwidth part packet when the index indicates the fourth bandwidth part packet (i.e. the slave bandwidth part packet). The terminal may switch the third bandwidth part packet to the indicated fourth bandwidth part packet and blindly check the search space on the active bandwidth part in the new main bandwidth part packet. When the indicated bandwidth portion is an upstream bandwidth portion, the active bandwidth portion may be a first active downstream bandwidth portion in the downstream bandwidth portion packet; when the indicated bandwidth part is a downlink bandwidth part, the active bandwidth part may be the downlink bandwidth part indicated by the sixth control information, or may be the first active downlink bandwidth part in the downlink bandwidth part packet.

For the second bandwidth part packet scheme, when the index indicates a fourth bandwidth part packet (i.e. a slave bandwidth part packet) and the fourth bandwidth part packet is an upstream bandwidth part packet, the terminal may consider the sixth control information as the switching signaling of the master bandwidth part packet. The terminal may switch the third bandwidth part packet to a downlink bandwidth part packet corresponding to the indicated fourth bandwidth part packet (uplink bandwidth part packet), and blindly detect the search space on an active bandwidth part in the new main downlink bandwidth part packet, which may be the first active downlink bandwidth part in the downlink bandwidth part packet.

Similarly, when the index points to a fourth bandwidth part packet (i.e. a slave bandwidth part packet) and the fourth bandwidth part packet is a downlink bandwidth part packet, the terminal may consider the sixth control information as the switching signaling of the master bandwidth part packet. The terminal may switch the third bandwidth part packet to the indicated fourth bandwidth part packet and blindly detect a search space on an active bandwidth part in the new primary downlink bandwidth part packet, where the active bandwidth part may be the downlink bandwidth part indicated by the sixth control information or the first active downlink bandwidth part in the downlink bandwidth part packet.

As an optional embodiment, the sixth control information is received by the terminal through a fourth search space corresponding to an active bandwidth part in the third bandwidth part packet, where the fourth search space is further used for the terminal to receive seventh control information, and the seventh control information is used for indicating a twelfth bandwidth part in the third bandwidth part packet. Optionally, the payload sizes of the sixth control information and the seventh control information are the same.

Specifically, the network device may send the sixth control information to the terminal through a fourth search space corresponding to an active bandwidth part in the third bandwidth part packet, and may also send seventh control information indicating a bandwidth part in the third bandwidth part packet to the terminal through the fourth search space; correspondingly, the terminal may receive the sixth control information sent by the network device through the fourth search space, and may also receive the seventh control information sent by the network device through the fourth search space. In the embodiment of the present application, the sixth control information is used for performing the switching of the bandwidth part, and the seventh control information is used for performing the self-contained scheduling, so in other words, the search spaces used by the network device for performing the switching of the bandwidth part and the self-contained scheduling may be the same.

Therefore, the method can realize the switching of the bandwidth part simply without increasing the complexity of the terminal for blind detection of the downlink control channel, thereby improving the system performance.

The above description includes two possible implementations as follows: the first is that the terminal is configured in the TDM mode, and at this time, whether the sixth control information includes the resource allocation field is not limited; in the second case, the terminal is configured in the FDM mode, or TDM mode + FDM mode, and at this time, the terminal can distinguish between performing the deactivation operation of the slave bandwidth part packet and performing the switching operation of the master bandwidth part packet by whether the sixth control information includes the resource allocation region, but the embodiment of the present application is not limited thereto.

In the communication method of the embodiment of the application, the network device indicates the carrier bandwidth part in the secondary carrier bandwidth part packet by using the search space corresponding to the activated bandwidth part in the primary bandwidth part packet, so that switching of the primary bandwidth part packet is completed, and the complexity of blind detection of a downlink control channel by a terminal is not increased while a TDM mode is enabled, thereby improving system performance.

The application also provides a configuration method of the FDM mode and the TDM mode. First, the following basic assumptions are defined:

(1) TDM mode is a lower-capability mode of operation, i.e., TDM mode is supported by all terminals.

(2) FDM mode is a higher-capability mode of operation, i.e., only some terminals are capable of supporting FDM mode.

Of course, the other definition may also be used, that is, the FDM mode is a lower-capacity operation mode, and the TDM mode is a higher-capacity operation mode, which is not limited in this embodiment of the present application.

Thus, a lower capacity mode of operation is referred to in the first mode and a higher capacity mode of operation is referred to in the second mode. It should be understood that a terminal supporting the second mode must be able to support the first mode.

Based on the above assumptions, the terminal may report its capability to the network device, i.e., whether the terminal supports the first mode or the second mode. The network device can configure the working mode of the terminal according to the reported capability of the terminal. Specifically, if the terminal reports that the terminal has the capability of supporting the first mode, the network device can only configure the first mode for the terminal; if the terminal reports its capability as supporting the second mode, the network device may configure the first mode for the terminal, or may configure the second mode for the terminal.

Therefore, the network equipment can be flexibly configured according to the capability of the terminal, the condition that the network equipment configures a higher working mode for the terminal but the terminal cannot support the higher working mode is avoided, and the stability of the system is improved.

The above detailed description is directed to examples of communication methods provided herein. It is understood that the terminal and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above-described functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Fig. 4 shows a schematic structural diagram of an apparatus 400 provided in the present application. The apparatus 400 comprises: a receiving unit 410 and a processing unit 420.

A receiving unit 410, configured to receive first control information through a first bandwidth part in a first bandwidth part packet, where the first control information is used to indicate a second bandwidth part in a second bandwidth part packet, and the first bandwidth part packet and the second bandwidth part packet each include an upstream bandwidth part and a downstream bandwidth part;

a processing unit 420, configured to activate the second bandwidth part in the second bandwidth part packet according to the first control information, where the second bandwidth part is an uplink bandwidth part or a downlink bandwidth part.

Optionally, the downlink bandwidth part in the first bandwidth part packet comprises a bandwidth part for receiving system messages and/or a bandwidth part for initial access.

Optionally, the first control information is received by the apparatus through a first search space corresponding to an active bandwidth part of the first bandwidth part packet, wherein the first search space is further used for the apparatus to receive second control information indicating the upstream bandwidth part and/or the downstream bandwidth part in the first bandwidth part packet.

Optionally, the processing unit 420 is further configured to: activating at least one upstream bandwidth part in the second bandwidth part packet; wherein the second bandwidth part is a downstream bandwidth part and the at least one upstream bandwidth part is a counterpart upstream bandwidth part of the second bandwidth part, or the at least one upstream bandwidth part is a preconfigured upstream bandwidth part in the second bandwidth part grouping.

Optionally, the processing unit 420 is further configured to: activating at least one downstream bandwidth part in the second bandwidth part packet; wherein the second bandwidth part is an upstream bandwidth part and the at least one downstream bandwidth part is a counterpart downstream bandwidth part of the second bandwidth part, or the at least one downstream bandwidth part is a preconfigured downstream bandwidth part in the second bandwidth part grouping.

Optionally, the receiving unit 410 is further configured to: receiving third control information over the first bandwidth part, the third control information indicating any bandwidth part in the second bandwidth part group; the processing unit 420 is further configured to: deactivating all bandwidth parts in the second bandwidth part grouping according to the third control information.

Optionally, the first control information is further used to indicate activation of a bandwidth part in the second bandwidth part packet, and the third control information is further used to indicate deactivation of a bandwidth part in the second bandwidth part packet.

Optionally, a value of a first bit field of the first control information is a first value, and a value of the first bit field of the third control information is a second value.

Optionally, the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

The apparatus 400 may be a communication device (e.g., a terminal) or a chip within a communication device. When the communication apparatus is a communication device, the processing unit may be a processor, and the transmitting unit and the receiving unit may be transceivers; the communication device may further include a storage unit, which may be a memory; the storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the communication equipment to execute the method. When the communication device is a chip within a communication apparatus, the processing unit may be a processor, and the transmitting unit and the receiving unit may be input/output interfaces, pins, circuits, or the like; the processing unit executes instructions stored in a storage unit (e.g., a register, a cache memory, etc.) within the chip or located outside the chip (e.g., a read-only memory, a random access memory, etc.) to cause the communication device to perform the corresponding steps performed by the terminal

It is clear to those skilled in the art that, when the apparatus 400 is a terminal, the steps performed by the apparatus 400 and the corresponding advantages can be referred to the related description of the terminal in fig. 2, and are not described herein again for brevity.

Fig. 5 shows a schematic structural diagram of an apparatus 500 provided in the present application. The apparatus 500 comprises: a processing unit 510 and a transmitting unit 520.

A processing unit 510, configured to determine first control information indicating a second bandwidth part in a second bandwidth part packet;

a transmitting unit 520 for transmitting the first control information to the terminal through the first bandwidth part in the first bandwidth part packet;

wherein the first bandwidth part packet and the second bandwidth part packet each include an upstream bandwidth part and a downstream bandwidth part, and the second bandwidth part is an upstream bandwidth part or a downstream bandwidth part.

Optionally, the downlink bandwidth part in the first bandwidth part packet comprises a bandwidth part for receiving system messages and/or a bandwidth part for initial access.

Optionally, the first control information is received by the terminal through a first search space corresponding to an active bandwidth part of the first bandwidth part packet, where the first search space is further used for the terminal to receive second control information, and the second control information is used for indicating the uplink bandwidth part and/or the downlink bandwidth part in the first bandwidth part packet.

Optionally, the sending unit 520 is further configured to: and sending third control information to the terminal through the first bandwidth part, wherein the third control information is used for indicating any bandwidth part in the second bandwidth part group.

Optionally, the first control information is further used to indicate activation of a bandwidth part in the second bandwidth part packet, and the third control information is further used to indicate deactivation of a bandwidth part in the second bandwidth part packet.

Optionally, a value of a first bit field of the first control information is a first value, and a value of the first bit field of the third control information is a second value.

Optionally, the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

The apparatus 500 may be a communication device (e.g., a network device) or a chip within a communication device. When the communication apparatus is a communication device, the processing unit may be a processor, and the transmitting unit and the receiving unit may be transceivers; the communication device may further include a storage unit, which may be a memory; the storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the communication equipment to execute the method. When the communication device is a chip within a communication apparatus, the processing unit may be a processor, and the transmitting unit and the receiving unit may be input/output interfaces, pins, circuits, or the like; the processing unit executes instructions stored in a storage unit (e.g., a register, a cache memory, etc.) within the chip or located outside the chip (e.g., a read-only memory, a random access memory, etc.) to cause the communication device to perform the corresponding steps performed by the network device

It is clear to those skilled in the art that when the apparatus 500 is a network device, the steps performed by the apparatus 500 and the corresponding beneficial effects can be referred to the related description of the network device in fig. 2, and are not described herein for brevity.

It should be understood that the above division of the units is only a functional division, and other division methods may be possible in actual implementation.

It can be clearly understood by those skilled in the art that the detailed working process of the above-described apparatuses and units and the technical effects generated by the execution of the steps may refer to the description in the foregoing corresponding method embodiments, and are not repeated herein for brevity.

The communication device may be a chip, and the processing unit may be implemented by hardware or software, and when implemented by hardware, the processing unit may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processing unit may be a general-purpose processor implemented by reading software code stored in a memory unit, which may be integrated in the processor or may be located external to the processor, separate from the processor.

The apparatus provided in the present application is further described below by taking the above-mentioned apparatus as a terminal or a network device as an example.

Fig. 6 is a schematic structural diagram of a terminal 10 provided in the present application. For convenience of explanation, fig. 6 shows only main components of the terminal. As shown in fig. 6, the terminal 10 includes a processor, a memory, a control circuit, an antenna, and an input-output device.

The processor is mainly configured to process the communication protocol and the communication data, control the entire terminal, execute a software program, and process data of the software program, for example, to support the terminal to perform the actions described in the foregoing resource allocation method or communication method embodiment. The memory is used primarily for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together may also be called a transceiver, which is mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the terminal is started, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data.

Those skilled in the art will appreciate that fig. 6 shows only one memory and processor for ease of illustration. In a practical terminal, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this application.

As an alternative implementation manner, the processor may include a baseband processor and a central processing unit, the baseband processor is mainly used for processing the communication protocol and the communication data, and the central processing unit is mainly used for controlling the whole terminal, executing the software program, and processing the data of the software program. The processor in fig. 6 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal may include a plurality of baseband processors to accommodate different network formats, a plurality of central processors to enhance its processing capability, and various components of the terminal may be connected by various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processor can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

For example, in the embodiment of the present application, the antenna and the control circuit having the transceiving function may be regarded as the transceiving unit 101 of the terminal 10, and the processor having the processing function may be regarded as the processing unit 102 of the terminal 10. As shown in fig. 6, the terminal 10 includes a transceiving unit 101 and a processing unit 102. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Alternatively, a device for implementing a receiving function in the transceiving unit 101 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 101 may be regarded as a transmitting unit, that is, the transceiving unit 101 includes a receiving unit and a transmitting unit. For example, a receiving unit may also be referred to as a receiver, a receiving circuit, etc., and a transmitting unit may be referred to as a transmitter, a transmitting circuit, etc.

The terminal shown in fig. 6 can perform each action performed by the terminal in the above method, and here, a detailed description thereof is omitted for avoiding redundancy.

Fig. 7 is a schematic structural diagram of a network device provided in the present application, where the network device may be a base station, for example. As shown in fig. 7, the base station may be applied in the communication system shown in fig. 1, and performs the functions of the network device in the above method embodiments. The base station 20 may include one or more radio frequency units, such as a Remote Radio Unit (RRU) 201 and one or more baseband units (BBUs) (which may also be referred to as Digital Units (DUs)) 202. The RRU 201 may be referred to as a transceiver unit, transceiver circuit, or transceiver, etc., which may include at least one antenna 2011 and a radio unit 2012. The RRU 201 is mainly used for transceiving radio frequency signals and converting the radio frequency signals and baseband signals, for example, for transmitting the PDCCH and/or PDSCH in the above method embodiment. The BBU 202 is mainly used for performing baseband processing, controlling a base station, and the like. The RRU 201 and the BBU 202 may be physically disposed together or may be physically disposed separately, that is, distributed base stations.

The BBU 202 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used for completing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing unit) 202 can be used to control the base station to execute the operation flow related to the network device in the above method embodiment.

In an embodiment, the BBU 202 may be formed by one or more boards, and the boards may jointly support a radio access network (e.g., an LTE network) with a single access indication, or may respectively support radio access networks (e.g., an LTE network, a 5G network, or other networks) with different access schemes. The BBU 202 also includes a memory 2021 and a processor 2022, the memory 2021 for storing the necessary instructions and data. For example, the memory 2021 stores QCL information or TCI status in the above-described method embodiments. The processor 2022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation flows related to the network device in the above method embodiments. The memory 2021 and the processor 2022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

The present application also provides a communication system comprising one or more of the aforementioned network devices, and one or more terminals.

It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by instructions in the form of integrated logic circuits of hardware or software in a processor. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The methods, steps and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash memory, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The present application also provides a computer-readable medium having stored thereon a computer program which, when executed by a computer, performs the functions of any of the method embodiments described above.

The present application also provides a computer program product which, when executed by a computer, implements the functionality of any of the method embodiments described above.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, 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 loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should also be understood that, in this application, "when …", "if" and "if" all refer to a UE or base station that is doing the corresponding processing under certain objective circumstances, and are not time-critical, nor do they require certain deterministic actions to be performed by the UE or base station, nor do they imply that other limitations exist.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone.

Herein, the term "at least one of … …" or "at least one of … …," denotes all or any combination of the listed items, e.g., "at least one of A, B and C," may denote: there are six cases of a alone, B alone, C alone, a and B together, B and C together, and A, B and C together.

It should be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Through the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, the method is simple. Any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, a server, or other remote sources using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Subscriber Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually use magnetism to reproduce data, while discs use lasers to reproduce data. Combinations of the above should also be included within the scope of computer-readable media.

In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (32)

1. A method of communication, comprising:

the terminal receives first control information through a first bandwidth part in a first bandwidth part packet, wherein the first control information is used for indicating a second bandwidth part in a second bandwidth part packet, and the first bandwidth part packet and the second bandwidth part packet respectively comprise an upstream bandwidth part and a downstream bandwidth part;

and the terminal activates the second bandwidth part in the second bandwidth part group according to the first control information, wherein the second bandwidth part is an uplink bandwidth part or a downlink bandwidth part.

2. The method of claim 1, wherein the downstream bandwidth portion in the first bandwidth portion packet comprises a bandwidth portion for receiving system messages and/or a bandwidth portion for initial access.

3. The method according to claim 1 or 2, wherein the first control information is received by the terminal through a first search space corresponding to an active bandwidth part of the first bandwidth part packet, wherein the first search space is further used for the terminal to receive second control information indicating the uplink bandwidth part and/or the downlink bandwidth part in the first bandwidth part packet.

4. The method of any of claims 1 to 3, further comprising:

the terminal activates at least one uplink bandwidth part in the second bandwidth part packet;

wherein the second bandwidth part is a downstream bandwidth part and the at least one upstream bandwidth part is a counterpart upstream bandwidth part of the second bandwidth part, or the at least one upstream bandwidth part is a preconfigured upstream bandwidth part in the second bandwidth part grouping.

5. The method of any of claims 1 to 3, further comprising:

the terminal activates at least one downlink bandwidth part in the second bandwidth part packet;

wherein the second bandwidth part is an upstream bandwidth part and the at least one downstream bandwidth part is a counterpart downstream bandwidth part of the second bandwidth part, or the at least one downstream bandwidth part is a preconfigured downstream bandwidth part in the second bandwidth part grouping.

6. The method according to any one of claims 1 to 5, further comprising:

the terminal receives third control information through the first bandwidth part, wherein the third control information is used for indicating any bandwidth part in the second bandwidth part group;

and the terminal deactivates all bandwidth parts in the second bandwidth part group according to the third control information.

7. The method of claim 6, wherein the first control information is further used for indicating activation of a bandwidth part in the second bandwidth part packet, and wherein the third control information is further used for indicating deactivation of a bandwidth part in the second bandwidth part packet.

8. The method of claim 7, wherein a value of a first bit field of the first control information is a first value, and wherein a value of the first bit field of the third control information is a second value.

9. The method according to any of claims 1 to 8, wherein the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

10. A method of communication, comprising:

the network equipment determines first control information, wherein the first control information is used for indicating a second bandwidth part in a second bandwidth part packet;

the network device sends the first control information to a terminal through a first bandwidth part in a first bandwidth part packet;

wherein the first bandwidth part packet and the second bandwidth part packet each include an upstream bandwidth part and a downstream bandwidth part, and the second bandwidth part is an upstream bandwidth part or a downstream bandwidth part.

11. The method of claim 10, wherein the downstream bandwidth portion in the first bandwidth portion packet comprises a bandwidth portion for receiving system messages and/or a bandwidth portion for initial access.

12. The method according to claim 10 or 11, wherein the first control information is received by the terminal through a first search space corresponding to an active bandwidth part of the first bandwidth part packet, wherein the first search space is further used for the terminal to receive second control information indicating the uplink bandwidth part and/or the downlink bandwidth part in the first bandwidth part packet.

13. The method according to any one of claims 10 to 12, further comprising:

the network device sends third control information to the terminal through the first bandwidth part, wherein the third control information is used for indicating any bandwidth part in the second bandwidth part group.

14. The method of claim 13, wherein the first control information is further used to indicate activation of a bandwidth part in the second bandwidth part packet, and wherein the third control information is further used to indicate deactivation of a bandwidth part in the second bandwidth part packet.

15. The method of claim 14, wherein a value of the first bit field of the first control information is a first value, and wherein a value of the first bit field of the third control information is a second value.

16. The method according to any of claims 10 to 15, wherein the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

17. An apparatus, comprising:

a receiving unit, configured to receive first control information through a first bandwidth part in a first bandwidth part packet, where the first control information is used to indicate a second bandwidth part in a second bandwidth part packet, and the first bandwidth part packet and the second bandwidth part packet each include an upstream bandwidth part and a downstream bandwidth part;

a processing unit, configured to activate the second bandwidth part in the second bandwidth part packet according to the first control information, where the second bandwidth part is an uplink bandwidth part or a downlink bandwidth part.

18. The apparatus of claim 17, wherein the downlink bandwidth portion in the first bandwidth portion packet comprises a bandwidth portion for receiving system messages and/or a bandwidth portion for initial access.

19. The apparatus according to claim 17 or 18, wherein the first control information is received by the apparatus via a first search space corresponding to an active bandwidth part of the first bandwidth part packet, wherein the first search space is further used for the apparatus to receive second control information indicating the upstream bandwidth part and/or the downstream bandwidth part in the first bandwidth part packet.

20. The apparatus according to any one of claims 17 to 19, wherein the processing unit is further configured to:

activating at least one upstream bandwidth part in the second bandwidth part packet;

wherein the second bandwidth part is a downstream bandwidth part and the at least one upstream bandwidth part is a counterpart upstream bandwidth part of the second bandwidth part, or the at least one upstream bandwidth part is a preconfigured upstream bandwidth part in the second bandwidth part grouping.

21. The apparatus according to any one of claims 17 to 20, wherein the processing unit is further configured to:

activating at least one downstream bandwidth part in the second bandwidth part packet;

wherein the second bandwidth part is an upstream bandwidth part and the at least one downstream bandwidth part is a counterpart downstream bandwidth part of the second bandwidth part, or the at least one downstream bandwidth part is a preconfigured downstream bandwidth part in the second bandwidth part grouping.

22. The apparatus according to any of claims 17 to 21, wherein the receiving unit is further configured to:

receiving third control information over the first bandwidth part, the third control information indicating any bandwidth part in the second bandwidth part group;

the processing unit is further to:

deactivating all bandwidth parts in the second bandwidth part grouping according to the third control information.

23. The apparatus of claim 22, wherein the first control information is further configured to indicate activation of a bandwidth portion of the second bandwidth portion packet, and wherein the third control information is further configured to indicate deactivation of a bandwidth portion of the second bandwidth portion packet.

24. The apparatus of claim 23, wherein a value of a first bit field of the first control information is a first value, and wherein a value of the first bit field of the third control information is a second value.

25. The apparatus according to any of claims 17 to 24, wherein the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.

26. An apparatus, comprising:

a processing unit configured to determine first control information indicating a second bandwidth part in a second bandwidth part packet;

a transmitting unit for transmitting the first control information to a terminal through a first bandwidth part in a first bandwidth part packet;

wherein the first bandwidth part packet and the second bandwidth part packet each include an upstream bandwidth part and a downstream bandwidth part, and the second bandwidth part is an upstream bandwidth part or a downstream bandwidth part.

27. The apparatus of claim 26, wherein the downlink bandwidth portion of the first bandwidth portion packet comprises a bandwidth portion for receiving system messages and/or a bandwidth portion for initial access.

28. The apparatus according to claim 26 or 27, wherein the first control information is received by the terminal via a first search space corresponding to an active bandwidth part of the first bandwidth part packet, wherein the first search space is further used for the terminal to receive second control information indicating the uplink bandwidth part and/or the downlink bandwidth part in the first bandwidth part packet.

29. The apparatus according to any of claims 26 to 28, wherein the sending unit is further configured to:

and sending third control information to the terminal through the first bandwidth part, wherein the third control information is used for indicating any bandwidth part in the second bandwidth part group.

30. The apparatus of claim 29, wherein the first control information is further configured to indicate activation of a bandwidth portion in the second bandwidth portion packet, and wherein the third control information is further configured to indicate deactivation of a bandwidth portion in the second bandwidth portion packet.

31. The apparatus of claim 30, wherein a value of a first bit field of the first control information is a first value, and wherein a value of the first bit field of the third control information is a second value.

32. The apparatus according to any of claims 26 to 31, wherein the first control information carries an index of the second bandwidth part packet and/or an index of the second bandwidth part.