WO2022151771A1

WO2022151771A1 - Bwp determination method and apparatus

Info

Publication number: WO2022151771A1
Application number: PCT/CN2021/122386
Authority: WO
Inventors: 郭志恒; 刘烈海
Original assignee: 华为技术有限公司
Priority date: 2021-01-18
Filing date: 2021-09-30
Publication date: 2022-07-21
Also published as: WO2022151506A1; CN116711409A

Abstract

Provided are a bandwidth part (BWP) determination method and apparatus, which are used for increasing a frequency range available for a terminal device. The BWP determination method comprises: according to a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter, a terminal device determining a starting position and bandwidth of a BWP of the terminal device, wherein the first bandwidth parameter is a bandwidth range of the BWP, the bandwidth range of the BWP being greater than 275 resource blocks (RBs); the second bandwidth parameter is the bandwidth of the BWP, the bandwidth of the BWP being less than or equal to the bandwidth range of the BWP; and the third bandwidth parameter is the starting position of the BWP.

Description

A method and device for determining BWP

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the PCT patent application filed on January 18, 2021 with the application number PCT/CN2021/072579 and titled "A BWP Determination Method and Device", the entire contents of which are by reference Incorporated in this application.

technical field

The present application relates to the field of wireless communication technologies, and in particular, to a method and apparatus for determining a BWP.

Background technique

The terminal equipment can use all the spectrum resources by means of carrier aggregation, so as to realize the information transmission and reception of the small bandwidth terminal equipment in the large bandwidth resource. However, carrier aggregation is a capability of terminal equipment. For terminal equipment without such carrier aggregation capability, it can still only use the resources of the first carrier allocated, and the frequency range that can be used by terminal equipment is still limited. In this case, it may also cause that the number of users in the first carrier is too large, while the number of users in the allocated second carrier is less, resulting in an unbalanced load on the carriers.

To avoid the above possible problems, only one signal can be sent in a large bandwidth. For example, only one SSB can be sent in the large bandwidth of 160MHz, and a new carrier dedicated to the terminal device 2 can be configured by the terminal device 2 through the dedicated signaling of the terminal device 2 on the right side of 100M, so that only one SSB can be used. The frequency range that can be used by the terminal equipment is expanded, and the terminal equipment does not necessarily have the capability of carrier aggregation. However, the existing BWP is based on the RIV configuration. The maximum number of RBs used when calculating the RIV is 275, and the starting position of the BWP is the first RB on the left side of 160MHz, so the BWP of the terminal device cannot be configured on the right side of 100MHz. In addition, the purpose of sharing one SSB between two carriers cannot be achieved, so the above problem cannot be well solved.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method and apparatus for determining a BWP, so as to improve the frequency resources available to a terminal device.

A first aspect provides a method for determining a BWP, comprising: a terminal device determining a starting position and bandwidth of a BWP of the terminal device according to a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter; the first The bandwidth parameter is the bandwidth range of the BWP; the second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is the starting point of the BWP. start position.

In a possible design, the bandwidth range of the BWP is greater than 275 resource blocks RB.

In this method, the terminal device can determine the BWP within the bandwidth range of more than 275 RBs, the frequency range available to the terminal is increased, and the large bandwidth characteristic of the network device can be fully utilized. In the large bandwidth range, the network device can only send one broadcast message , saves the overhead of system broadcast information, improves spectrum utilization, and improves communication system capacity.

In a possible design, the first bandwidth parameter is the carrier bandwidth of the cell currently accessed by the terminal device.

In a possible design, the carrier bandwidth of the current cell is the public bandwidth of the cell or the public bandwidth broadcast in the public broadcast message.

In a possible design, the starting position of the BWP is related to the starting position of the carrier bandwidth dedicated to the terminal device.

In a possible design, the terminal device determines the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter, including:

if

The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:

Otherwise, the starting position of the BWP and the bandwidth indication parameter RIV satisfy the following formula:

in,

is the first bandwidth parameter, L _RBs is the second bandwidth parameter, RB _start is the third bandwidth parameter, and RIV is used to indicate the starting position and bandwidth of the BWP.

if

and

or

if

and

or

in,

is the first bandwidth parameter, L _RBs is the second bandwidth parameter, RB _start is the third bandwidth parameter,

for 275 RBs,

RIV is used to indicate the starting position and bandwidth of the BWP.

In a possible design, the frequency range of the carrier bandwidth dedicated to the terminal device completely overlaps, or partially overlaps, or does not overlap with the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device.

In a possible design, the carrier bandwidth dedicated to the terminal device includes multiple carrier bandwidths, and each carrier bandwidth includes one or more BWPs.

In a possible design, the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal device in one cell.

In a possible design, the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal device in one cell, and the subcarrier intervals of the multiple carrier bandwidths are the same.

In a possible design, the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth.

In a possible design, the multiple carrier bandwidths are multiple uplink bandwidths or multiple downlink bandwidths.

In a possible design, the starting position of the BWP is related to the starting position of the Nth common uplink or downlink carrier bandwidth broadcast by the cell, where N is an integer greater than or equal to 2.

In a second aspect, a method for determining BWP is provided, comprising: a terminal device determining a starting position and bandwidth of a bandwidth part BWP of the terminal device according to a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter; the The first bandwidth parameter is the bandwidth range of the BWP; the second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is used to indicate the The starting position of the BWP is related to the starting position of the carrier bandwidth dedicated to the terminal device.

In this method, the terminal device can determine that the starting position of the BWP is related to the carrier bandwidth dedicated to the terminal device, so that the BWP can be configured outside the system carrier bandwidth, and the large bandwidth characteristics of the network device can be fully utilized. Only one broadcast information can be sent, which saves the overhead of system broadcast information, improves spectrum utilization, and increases communication system capacity. Optionally, the dedicated carrier bandwidth of the terminal device is the dedicated carrier bandwidth allocated by the cell to the terminal device after the terminal device accesses the cell.

In a third aspect, a method for determining a BWP is provided, including the terminal device determining the starting position and bandwidth of the BWP of the terminal device according to a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter; the first bandwidth The parameter is the bandwidth range of the BWP; the second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is used to indicate the bandwidth of the BWP. The starting position, the starting position of the BWP is related to the starting position of the carrier bandwidth of the Nth broadcast, and N is an integer greater than or equal to 2.

Optionally, the broadcast carrier bandwidth may be the carrier bandwidth broadcast by the cell before the terminal device accesses the cell.

In a possible design, the frequency range of the carrier bandwidth of the Nth broadcast completely overlaps, or partially overlaps, or does not overlap with the frequency range of the carrier bandwidth of the first broadcast.

In a fourth aspect, a method for determining a BWP is provided, comprising: a terminal device receiving first signaling, where the first signaling is used to configure multiple carrier bandwidths for the terminal device, wherein a carrier bandwidth dedicated to the terminal device Including the plurality of carrier bandwidths.

In this method, the network device can configure multiple carriers within a large bandwidth range for the terminal device, and the configuration of the BWP is related to the carrier bandwidth, so that the terminal device such as a small bandwidth terminal device can use the frequency resource with a large bandwidth.

In a possible design, the multiple carrier bandwidths are the same.

In a possible design, the first signaling is further used to configure multiple BWPs, wherein each carrier bandwidth includes one or more BWPs.

In a possible design, the BWPs included in different dedicated carrier bandwidths are mirrored BWPs.

In a possible design, some or all of the BWPs included in different dedicated carrier bandwidths are copies of the same BWP configuration.

In a possible design, some or all of the parameters of the BWP included in different dedicated carrier bandwidths are the same.

In a possible design, the starting positions of BWPs in different carrier bandwidths are at the same distance from the starting positions of the respective carrier bandwidths. In a possible design, the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth.

In a fifth aspect, a communication device is provided, including a processing unit and a transceiver unit;

The transceiver unit is configured to acquire a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the bandwidth part BWP; the second bandwidth parameter is the bandwidth of the BWP, The bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is the starting position of the BWP;

The processing unit is configured to determine the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.

In a possible design, the processing unit is specifically used if

in,

In a possible design, the processing unit is specifically used if

if

and

or

if

and

or

in,

for 275 RBs,

RIV is used to indicate the starting position and bandwidth of the BWP.

In a possible design, the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal equipment in one cell.

In a sixth aspect, a communication device is provided, including a processing unit and a transceiver unit;

The transceiver unit is configured to acquire a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the bandwidth part BWP; the second bandwidth parameter is the bandwidth of the BWP, The bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is used to indicate the starting position of the BWP, and the starting position of the BWP is the starting position of the carrier bandwidth dedicated to the terminal device. related to the starting position;

In a seventh aspect, a communication device is provided, including a processing unit and a transceiver unit;

The transceiver unit is configured to determine the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the BWP ; The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is used to indicate the starting position of the BWP, and the bandwidth of the BWP is The starting position is related to the starting position of the Nth broadcast carrier bandwidth, where N is an integer greater than or equal to 2.

In an eighth aspect, a communication device is provided, including a processing unit and a transceiver unit;

The transceiver unit is configured to receive first signaling, where the first signaling is used to configure multiple carrier bandwidths for the terminal equipment, wherein the dedicated carrier bandwidth for the terminal equipment includes the multiple carrier bandwidths;

The processing unit is configured to determine the first signaling.

In a possible design, the multiple carrier bandwidths are the same.

In a possible design, the multiple carrier bandwidths are formed of continuous subcarriers in the frequency domain.

In a possible design, the multiple carrier bandwidths are continuous frequencies in the frequency domain.

In a possible design, the starting positions of BWPs in different carrier bandwidths are at the same distance from the starting positions of the respective carrier bandwidths.

In a ninth aspect, a communication device is provided. The apparatus provided in the present application has the function of implementing the terminal device in the above method aspect, and includes components (means) corresponding to the steps or functions described in the above method aspect. The steps or functions can be implemented by software, or by hardware (eg, circuits), or by a combination of hardware and software.

In one possible design, the apparatus described above includes one or more processors and communication units. The one or more processors are configured to support the apparatus to perform the corresponding functions of the terminal device in the above method.

Optionally, the apparatus may further include one or more memories, which are coupled to the processor and store necessary program instructions and/or data of the apparatus. The one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.

In another possible design, the above device includes a transceiver, a processor and a memory. The processor is used for controlling the transceiver or the input/output circuit to send and receive signals, the memory is used for storing a computer program, the processor is used for running the computer program in the memory, so that the apparatus performs the first aspect, the second aspect and the third aspect , the fourth aspect, or any one of the possible implementation manners of the first aspect, the second aspect, the third aspect, and the fourth aspect to complete the method by the terminal device.

Optionally, the apparatus may further include one or more memories, which are used for coupling with the processor, and which store necessary program instructions and/or data of the terminal device. The one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.

The apparatus may be located in a terminal device or be a terminal device.

In another possible design, the above device includes a transceiver, a processor and a memory. The processor is used to control the transceiver or the input/output circuit to send and receive signals, the memory is used to store a computer program, and the processor is used to execute the computer program in the memory, so that the apparatus performs the first aspect, the second aspect, the third aspect, The fourth aspect, or the method performed by the terminal device in any possible implementation manner of the first aspect, the second aspect, the third aspect, and the fourth aspect.

In a tenth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program comprising a method for executing the first aspect, the second aspect, the third aspect, the fourth aspect, or the first aspect and the second aspect , an instruction of the method in any one of the possible implementation manners of the third aspect and the fourth aspect.

In an eleventh aspect, a computer program product is provided, the computer program product comprising: computer program code, when the computer program code is run on a computer, the computer is made to execute the above-mentioned first aspect, second aspect, and third aspect , the fourth aspect, or the method in any possible implementation manner of the first aspect, the second aspect, the third aspect, and the fourth aspect.

A twelfth aspect provides a chip system, the chip system includes a transceiver for implementing the functions of the terminal device in the methods of the above aspects, for example, for example, receiving or sending data and/or information involved in the above methods.

In a possible design, the chip system further includes a memory for storing program instructions and/or data. The chip system may be composed of chips, or may include chips and other discrete devices.

A thirteenth aspect provides a communication system, where the communication system includes a network device and a terminal device, and the terminal device can perform the above-mentioned first aspect, second aspect, third aspect, fourth aspect, or the first aspect, A method in any possible implementation manner of the second aspect, the third aspect, and the fourth aspect.

For the technical effects that can be achieved by the fifth aspect to the thirteenth aspect, please refer to the description of the technical effects that can be brought about by the first aspect, the second aspect, the third aspect, and the fourth aspect, which will not be repeated here.

Description of drawings

1 is a schematic diagram of the architecture of a communication system;

Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 8, Fig. 9 are schematic diagrams of a carrier bandwidth of a terminal device respectively;

FIG. 6 , FIG. 7 , and FIG. 10 are schematic flowcharts of determining a BWP according to an embodiment of the present application, respectively;

FIG. 11 and FIG. 12 are respectively a structural diagram of an apparatus for determining a BWP according to an embodiment of the present application.

Detailed ways

The present application will be described in further detail below with reference to the accompanying drawings.

This application will present various aspects, embodiments, or features around a system that may include a plurality of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc., and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. In addition, combinations of these schemes can also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used to mean serving as an example, illustration or illustration. Any embodiment or design described in this application as "exemplary" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present a concept in a concrete way.

The network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

Some terms in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

1) User equipment (UE), also known as terminal equipment, is a device with wireless transceiver functions that access device) communicates with one or more core network (core network, CN) devices (or may also be referred to as core devices).

User equipment may also be referred to as an access terminal, terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent, user device, or the like. User equipment can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.). The user equipment may be a cellular phone (cellular phone), a cordless phone, a session initiation protocol (SIP) phone, a smart phone (smart phone), a mobile phone (mobile phone), a wireless local loop (WLL) station, personal digital assistant (PDA), etc. Alternatively, the user equipment may also be a handheld device with a wireless communication function, a computing device or other device connected to a wireless modem, an in-vehicle device, a wearable device, a drone device, or a terminal in the Internet of Things, the Internet of Vehicles, the fifth generation Mobile communication (5th-generation, 5G) network and any form of terminal in future network, relay user equipment or terminal in future evolved PLMN, etc. The relay user equipment may be, for example, a 5G home gateway (residential gateway, RG). For example, the user equipment can be a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, telemedicine Wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home wireless terminals, etc. This embodiment of the present application does not limit the type or type of the terminal device.

2) Network equipment, which refers to equipment that can provide wireless access functions for terminals. The network device may support at least one wireless communication technology, such as long term evolution (LTE), new radio (NR), wideband code division multiple access (WCDMA), and the like.

For example, network equipment may include access network equipment. Exemplarily, the network equipment includes, but is not limited to: a next-generation base station or a next-generation node B (generation nodeB, gNB), an evolved node B (evolved node B, eNB), a radio network controller (radio network controller, RNC), node B (node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB ), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, small station, micro station, etc. The network device may also be a wireless controller, a centralized unit (CU), and/or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the network device may It is a relay station, an access point, a vehicle-mounted device, a terminal, a wearable device, and a network device in future mobile communications or a network device in a future evolved public land mobile network (PLMN).

For another example, the network device may include a core network (CN) device, and the core network device includes, for example, an AMF and the like.

3) A cell, also called a cell, is an area covered by a base station or a part of a base station (sector antenna), in which terminal equipment can communicate with the base station.

In the embodiments of the present application, unless otherwise specified, the concepts of a cell and a base station may be used instead.

4) Carrier, a radio wave generated by an oscillator and transmitted on a communication channel, modulated and used to send voice or other information. In this embodiment of the present application, the carrier includes a cell carrier and a terminal equipment carrier, and the cell carrier may also be referred to as a system carrier, and the terminal equipment carrier may also be referred to as a UE dedicated carrier.

The carrier bandwidth is also called the carrier width, or can be understood as the carrier frequency, which refers to the bandwidth occupied by the carrier, and can be used to refer to the bandwidth occupied by different modulation modes.

In this application, "and/or" describes the association relationship between associated objects, and means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist simultaneously, and B exists alone. a situation. The character "/" generally indicates that the associated objects are an "or" relationship.

The plural referred to in this application refers to two or more.

In addition, it should be understood that in the description of this application, words such as "first" and "second" are only used for the purpose of distinguishing the description, and should not be understood as indicating or implying relative importance, nor should it be understood as indicating or implied order.

The technical solutions of the embodiments of the present application can be applied to various communication systems (also referred to as wireless communication systems). Communication systems generally include, but are not limited to, 4th-generation (4th-generation, 4G) networks, LTE systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD), Universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, 5G communication system or NR, and other communication systems in the future such as 6G, etc. As long as there is an entity in the communication system that needs to send downlink data and pilot information, and another entity needs to receive corresponding downlink data and pilot information, the entity can be understood as a communication device in the communication system, including network devices and/or terminals. equipment. It can be understood that the embodiments of the present application can also be used in other communication systems, as long as the communication system has a downlink communication link and an uplink communication link.

For example, it can be a communication system as shown in FIG. 1. The communication system is composed of a base station (Base station) and UE1-UE3. In this communication system, the base station can send downlink data to terminal equipment UE1-UE4, while the terminal equipment UE1-UE4 UE4 can also send uplink data to the base station.

In order to facilitate understanding of the embodiments of the present application, an application scenario of the embodiments of the present application will be described first.

In a wireless communication system, communication can be classified into different types according to different types of transmitting nodes and receiving nodes. Usually, sending information from a network device to a terminal device is called downlink (DL) communication, and sending information from a terminal device to a network device is called uplink (UL) communication. The node is a terminal device, the sending node is a terminal device in the uplink communication, and the receiving node is a network device.

A network device (such as a base station) periodically sends a broadcast signal in the downlink signal for the terminal device to access and use, for example, the broadcast signal may be a single side band (single side band, SSB) signal. Taking the network device as the base station for illustration, when the base station sends broadcast signals, regardless of whether there are users in the cell or not, the base station will periodically send the broadcast signals without transmitting data service information. Therefore, the broadcast signals sent by the base station will occupy a fixed system overhead. The broadcast signal includes information about the cell, such as the carrier bandwidth and frequency location of the cell, and the maximum carrier bandwidth of the cell is 275 physical resource blocks (PRBs).

After the terminal device accesses the cell, the cell network may further configure the terminal device individually, and the individual configuration of the terminal device may include a carrier configuration dedicated to the terminal device and a bandwidth part (BWP) configuration. The carrier configuration dedicated to the terminal device includes a starting position and a carrier width, which can be represented by one piece of information, that is, the carrier configuration dedicated to the terminal device can be one.

In the 5G communication system, terminal devices are divided into terminal devices with different capabilities, and terminal devices with different capabilities may support different carrier bandwidths, that is, terminal devices with different capabilities may support different carrier capabilities. At the beginning of the design of 5G, terminal devices that can support different carrier capabilities can work in the same large bandwidth. This mechanism can be implemented through the carrier configuration and BWP configuration dedicated to the terminal device. Currently, in the 5G communication system, only one carrier dedicated to terminal equipment can be configured in one cell carrier for each terminal equipment. The carrier dedicated to terminal equipment may be smaller than the carrier bandwidth of the cell. Only one can be configured.

Carrier aggregation is supported in the 5G communication system, and the maximum carrier bandwidth supported by terminal equipment in FR1 is 100 megahertz (MHz). Among them, the 3rd generation partnership project (3GPP) defines the 5G frequency range, including FR1 and FR2, FR1 refers to 450MHz-6000MHz, also known as Sub-6GHz. When the spectrum bandwidth exceeds 100MHz, the bandwidth can be divided into multiple carriers. Terminal devices can use all frequency bandwidths through carrier aggregation. Each carrier is a cell, and each cell needs to broadcast signals such as SSB. The transmission of each SSB signal requires a large system overhead.

Various carrier bandwidths are defined in the R15 version of the current 5G new radio (NR), as shown in Table 1. It is shown in Table 1 that the NR bands/bands include n1, n2 and n3. n1, n2 and n3 all support different sub-carrier space (SCS), for example, 1, n2 and n3 in Table 1 all support SCS of 15 kilohertz (kHz), 30 kHz and 60 kHz. "Yes" in Table 1 indicates the bandwidth supported by NR Band under different SCSs. For example, when the SCS of the terminal equipment UE is 15kHz in frequency band n1, it supports 5MHz, 10MHz, 15MHz and 20MHz. For others, please refer to Table 1. List the description.

Table 1

The R16 version of the current 5G NR adds and defines a variety of carrier bandwidths as shown in Table 2. Compared with the R15 version, the R16 version centrally defines a variety of new bandwidths. For example, in the frequency band n1, the R16 version defines additional 25MHz, 30MHz, 40MHz and 50MHz bandwidth options. Other differences in the carrier bandwidth between the R16 version and the R15 version can be determined by comparing Table 1 and Table 2, which are not listed here.

Table 2

Generally, the carrier bandwidths shown in Table 1 and Table 2 are system carrier bandwidths, which can also be understood as cell carrier bandwidths.

For terminal equipment that supports R15 version (here referred to as "old terminal"/"old terminal"), it also needs to access the large bandwidth carrier of R16 (carrier bandwidth and location broadcast in SIB1), so R15 defines forward compatible mechanism. The network device can configure a new bandwidth (including bandwidth size and location) for the old terminal through signaling (such as terminal equipment dedicated (UE dedicated) signaling), so that the old terminal can communicate in the large bandwidth in the new network. As shown in Figure 2, the system bandwidth of the large-bandwidth carrier in the cell under R16 is 50MHz. The cell sends SSB signals for the initial access of the old terminal. The old terminal can communicate in a large bandwidth. For example, after the old terminal accesses the cell, the cell The carrier bandwidth allocated for the old terminal is 20MHz, and then the old terminal is configured with BWP in the newly configured carrier for the old terminal. The BWP configuration can be implemented by the following formula (1).

If

then

Else

in,

is 275 resource blocks (resource blocks, RBs), L _RBs is the bandwidth of the BWP, the L _RBs is less than or equal to 275, and RB _start is the starting position of the BWP, such as the starting RB sequence number, the RB _start corresponds to the SIB1 The first RB of the broadcasted system carrier bandwidth, the RIV is the starting position of the BWP and the indication parameters of the bandwidth.

Through the above design and configuration, the cell can configure the terminal device-specific carrier bandwidth and BWP for the old terminal. As a terminal device with small bandwidth capability, the old terminal device can also perform normal access and data transmission and reception in a large bandwidth.

In the current communication system, a base station may support a bandwidth greater than 100MHz. As shown in Figure 3, the base station is configured with two carriers. The dedicated signaling configures the terminal device 2 with a 60MHz carrier. When the base station is configured with two carriers, as shown in Figure 4, the base station can send broadcast signals on each carrier independently, such as SSB, system information block (SIB) 1, paging, control Resource set (control resource set, CORESET) 0 and other signals.

When a terminal device needs to switch from one carrier to another carrier at different times for some reason, the current standard implements an inter-carrier switching procedure.

Each terminal device can only be configured with a carrier dedicated to the terminal device (including the carrier start position and frequency domain width), so for a large bandwidth carrier, each terminal device can only communicate within a limited range, as shown in Figure 4 As shown, the terminal device 1 can only be in a limited range (the carrier bandwidth and/or the bandwidth of the BWP dedicated to the terminal device 1 as shown in FIG. 4 ), limiting the frequency range that the terminal device 1 may use.

Therefore, terminal equipment can use all spectrum resources (or frequency resources) by means of carrier aggregation, but carrier aggregation is a capability of terminal equipment. For terminal equipment without such carrier aggregation capability, it can still only use For the resources of the first carrier allocated, the frequency range that can be used by the terminal equipment is still limited. In this case, the number of users in the first carrier may be too large, while the number of users in the second carrier is allocated. less, resulting in unbalanced load on the carrier.

In order to avoid the above possible problems, only one signal can be sent in a large bandwidth. As shown in FIG. 5, only one SSB can be sent in the large bandwidth of 160MHz, and a new carrier dedicated to the terminal device 2 can be configured by the terminal device 2 through the dedicated signaling of the terminal device 2 on the right side of 100M, thereby The available frequency range of the terminal equipment can be expanded through one SSB, and the terminal equipment does not necessarily have the capability of carrier aggregation. However, the existing BWP is based on the RIV configuration. The maximum number of RBs used in calculating the RIV is 275, and the starting position of the BWP is the first RB on the left side of 160MHz, so that the BWP of the terminal device cannot be configured on the right side of 100MHz. In addition, the purpose of two carriers sharing one SSB cannot be achieved, so the above problem cannot be well solved.

Based on this, in order to improve the frequency range usable by the terminal device, the present application proposes a method for determining the BWP. The method for determining the BWP provided by the embodiment of the present application can be applied to the communication system as shown in FIG. 1 . In this method, the terminal device can determine the BWP within the carrier bandwidth greater than 275 RBs, and the frequency range available to the terminal device is increased, or the terminal device can determine that the starting position of the BWP is related to the carrier bandwidth dedicated to the terminal device. Configure the BWP outside the system carrier bandwidth. Therefore, making full use of the large bandwidth characteristics of network equipment, the network equipment can only send one broadcast message within a large bandwidth, which saves the overhead of system broadcast information, improves spectrum utilization, and increases communication system capacity.

Example 1:

In the first embodiment, the terminal device may determine the BWP within a carrier bandwidth greater than 275 RBs. 6, the specific process of the method for determining the BWP will be described in detail, and the process includes:

S601: The terminal device acquires the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.

The first bandwidth parameter is the bandwidth range of the BWP, that is, the first bandwidth parameter is used to represent/indicate the bandwidth range of the BWP, that is, the first bandwidth parameter is the available BWP of the terminal device maximum bandwidth range. The bandwidth range of the BWP may be the bandwidth value of the BWP, and the maximum bandwidth range available to the BWP may also be the maximum bandwidth value of the BWP. The first bandwidth parameter may be the above

The latter can be introduced for new bandwidth parameters such as

The bandwidth range of the BWP is greater than 275 RBs, or the bandwidth value of the BWP is greater than 275 RBs.

In a possible manner, the bandwidth range of the BWP may be a fixed range/fixed value, for example, the bandwidth range of the BWP may be a multiple of 275, such as 530, 550, 825, 1100, 1375, 1650, 1925, One of multiples of 275, such as 2200, 2475, or an integer between 550 and 500, enables users supporting 100M terminals to share an SSB with frequencies close to 200M bandwidth. Optionally, the network device may directly configure the first bandwidth range as a fixed range/fixed value. Or optionally, the network device may configure the first bandwidth range as the carrier bandwidth of the cell currently accessed by the terminal device (also referred to as the current cell), and the carrier bandwidth of the cell currently accessed by the terminal device is a fixed range. /Fixed value. The carrier bandwidth of the terminal device currently accessing the cell is the public bandwidth of the cell or the public bandwidth broadcast in the public broadcast message (eg SIB1).

In another possible manner, the bandwidth range of the BWP may be dynamically or semi-statically configured. Optionally, the network device may configure the first bandwidth range dynamically or semi-statically. Or optionally, the network device may configure the first bandwidth range as the carrier bandwidth of the cell currently accessed by the terminal device, and the carrier bandwidth of the cell currently accessed by the terminal device is dynamically or semi-statically configured.

Optionally, the first bandwidth parameter may be related to the carrier bandwidth of the cell currently accessed by the terminal device, for example, the first bandwidth parameter may be the carrier bandwidth of the cell currently accessed by the terminal device. The first bandwidth parameter described in the current standard is

However, in the embodiment of the present application, the first bandwidth parameter is greater than 275 RBs, and the BWP of the UE is determined within the carrier bandwidth greater than 275 RBs, and the frequency range available to the terminal device is increased. Only one broadcast message can be sent within the range, thereby reducing the overhead of public broadcast information.

In the current standard, the base station broadcasts the FrequencyInfoDL-SIB message in the SIB to broadcast the bandwidth of the system carrier, and the terminal device can obtain the position and bandwidth of the system carrier. For example, the FrequencyInfoDL-SIB message is as follows, where maxNrofPhysicalResourceBlocks is the system carrier bandwidth, and other parameters in the FrequencyInfoDL-SIB message can be found in the standard protocol, which will not be explained here one by one:

In the current standard, maxNrofPhysicalResourceBlocks is 275 RBs. In this embodiment of the present application, the network device may expand maxNrofPhysicalResourceBlocks in the FrequencyInfoDL-SIB message to a number greater than 275, for example, the expanded value may be 530, 550, 825, 1100, 1375, 1650, 1925, 2200 , one of multiples of 275 such as 2475, or an integer between 500 and 550. By configuring a larger number of PRBs, the network device can configure a wider system carrier bandwidth.

In the current standard, the base station configures the BWP of the terminal device through the BWP information. For example, the BWP information is as follows, where locationAndBandwidth is used to configure the location and bandwidth of the BWP, cyclicPrefix is used to configure whether the BWP uses the extended cyclic prefix, and subcarrierSpacing is used to configure the subcarrier of the BWP. Carrier spacing:

Currently, the bandwidth range of the locationAndBandwidth configuration BWP in the standard is 275 RBs. In this embodiment of the present application, the network device can configure the bandwidth range of the BWP to be greater than 275 RBs, and the bandwidth range of the BWP is the range of the carrier bandwidth of the cell currently accessed by the terminal device.

The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP. That is, the bandwidth of the BWP is the actual bandwidth of the BWP, that is, the bandwidth of the BWP configured for the terminal device. The second bandwidth parameter may be the above-mentioned L _RBs .

The third bandwidth parameter is the starting position of the BWP, and the third bandwidth parameter may be the above-mentioned RB _start . The starting position of the BWP may be related to the starting position of the system carrier bandwidth, or the starting position of the BWP may be related to the starting position of the carrier bandwidth dedicated to the terminal device. For example, the starting position of the BWP is determined by the sum of the reference starting position of the BWP and the offset, or the starting position of the BWP is the position of the first PRB of the BWP in the carrier bandwidth. The starting position may be related to the starting position of the system carrier bandwidth or may be related to the starting position of the terminal device-specific carrier bandwidth. In the embodiments of the present application, the carrier bandwidth dedicated to the terminal device refers to the carrier bandwidth configured for use by the terminal device, that is, the carrier bandwidth configured by the dedicated signaling of the terminal device.

S602: The terminal device determines the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.

In one possible way, the

Set to the above maxNrofPhysicalResourceBlocks, and reuse the above formula (1) to configure the BWP, as shown in the following formula (2):

If

then

Else

in,

is the first bandwidth parameter,

said

More than 275 RBs, L _RBs is the second bandwidth parameter, the maximum value of L _RBs is 275, that is, L _RBs is less than or equal to 275, RB _start is the third bandwidth parameter, and RIV is used to indicate the start of the BWP. location and bandwidth.

That is, in formula (2), if

In another possible way, a new bandwidth parameter can be introduced

Configure BWP with RIV0, as shown in the following formula (3):

ELSE IF

or

ELSE

or

in,

for 275 RBs,

RIV is used to indicate the starting position and bandwidth of the BWP.

That is, if

if

and

or

if

and

or

Embodiment 2:

In the second embodiment, the terminal device may determine that the starting position of the BWP is related to the carrier bandwidth dedicated to the terminal device. 7, the specific process of the method for determining the BWP will be described in detail, and the process includes:

S701: The terminal device acquires the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.

The first bandwidth parameter is the bandwidth range of the BWP. The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP. For the configuration of the first bandwidth parameter and the second bandwidth parameter, reference may be made to the above-mentioned first embodiment, and the similarities will not be repeated.

The third bandwidth parameter is used to indicate the starting position of the BWP, and the starting position of the BWP is related to the starting position of the carrier bandwidth dedicated to the UE. Optionally, when the network device configures the BWP of the terminal device, the reference start position for configuring the BWP of the terminal device is the start position of the carrier configured in ServingCellConfigCommon/ServingCellConfigCommonSIB. The reference starting position of the BWP described in the current standard is the starting position of the system carrier. In this embodiment of the present application, the reference starting position of the BWP is the starting position of the carrier bandwidth dedicated to the terminal device.

The frequency range of the carrier bandwidth dedicated to the terminal device and the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device may completely overlap, or may partially overlap, or may not overlap. Optionally, the network device may configure the dedicated carrier bandwidth of the terminal device through dedicated signaling of the terminal device. For example, the network device can configure the carrier bandwidth occupied by the terminal device through ServingCellConfig/downlinkChannelBW-PerSCS-List:

S702: The terminal device determines the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.

For the process of the S702, reference may be made to the above-mentioned S601, and the similarities will not be repeated.

In the second embodiment, the starting position of the BWP is related to the dedicated carrier bandwidth of the terminal device, and the BWP of the terminal device can be configured outside the carrier bandwidth broadcast by the SIB1, as shown in FIG. 8 .

If a carrier can support a large bandwidth of 160MHz, and the terminal equipment can only support a large bandwidth of 100MHz, but cannot support a large bandwidth of 160MHz, according to the current standard, the network equipment can only configure a carrier for the terminal equipment within the range of 100MHz, or a base station. In a scenario where a large bandwidth is supported, and the terminal only supports a small bandwidth, as shown in Figure 9, the terminal device can only use a small bandwidth. The carrier bandwidth available to the terminal device is limited, and the terminal device can only send and receive information on the configured carrier, but cannot send and receive data on the frequency resources within 160MHz outside the configured carrier, thus reducing the flexibility of the communication system and The probability of multi-user multiple-input multiple-output (MU-MIMO) pairing of the terminal device with other terminal devices reduces the flexibility of load balancing in the frequency band, and the terminal device cannot utilize the configuration The frequency points outside the carrier bandwidth of the terminal device reduce the frequency diversity performance of the terminal equipment.

Based on this, the embodiment of the present application also provides the third embodiment.

Embodiment three:

In the third embodiment, the network device may configure multiple carrier bandwidths for the terminal device. 10, the specific process of the method for determining the BWP will be described in detail, and the process includes:

S1001: The network device sends first signaling, where the first signaling is used to configure multiple carrier bandwidths for a terminal device, where the carrier bandwidth dedicated to the terminal device includes the multiple carrier bandwidths.

Optionally, the multiple carrier bandwidths are multiple dedicated carriers of the terminal device in one cell. For example, the multiple carrier bandwidths are multiple dedicated carriers in the current access cell of the terminal device. The multiple carrier bandwidths may be the same or different.

Optionally, the multiple carrier bandwidths are the same.

Optionally, the subcarrier intervals of the multiple carrier bandwidths are the same.

Optionally, the multiple carrier bandwidths are formed of continuous subcarriers in the frequency domain.

Optionally, the multiple carrier bandwidths are continuous frequencies in the frequency domain.

Optionally, the first signaling is further used to configure multiple BWPs, wherein each carrier bandwidth includes one or more BWPs.

Optionally, the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth, that is, each BWP does not span carrier bandwidths.

Optionally, BWPs included in different dedicated carrier bandwidths are mirrored BWPs.

Optionally, some or all of the BWPs included in different dedicated carrier bandwidths are copies of the same BWP configuration.

Optionally, some or all of the parameters of the BWP included in different dedicated carrier bandwidths are the same.

Optionally, the parameter parts of the BWP included in different dedicated carrier bandwidths are configured uniformly. Optionally, the distances between the starting positions of the BWPs in different carrier bandwidths and the starting positions of the respective carrier bandwidths are the same.

In a possible manner, multiple downlinkChannelBW-PerSCS-Lists are configured in the first signaling, and multiple BWPs are configured in the first signaling.

In one possible way, the BWP is associated with the downlinkChannelBW-PerSCS-List.

In another possible manner, multiple BWPs are configured in the first signaling, and carrier configuration information is added to each BWP, for example, a downlinkChannelBW-PerSCS-List field is configured in each BWP to indicate the BWP to which the BWP belongs. The position of the carrier, the terminal equipment can adjust the characteristics of the transmitter filter and so on to send and receive information.

S1002: The terminal device receives the first signaling.

It can be seen that in the third embodiment of the present application, a terminal device with a small bandwidth can utilize the frequency resources in a large bandwidth to achieve the effect of frequency diversity and improve the throughput of a single terminal device, and a terminal device with a small bandwidth can use the frequency resources in the large bandwidth. The transmission is beneficial to the pairing of terminal devices when there are multiple users, and the small-bandwidth terminal devices in the large-bandwidth cell can transmit in the large-bandwidth, which is conducive to load balancing in the frequency range and more flexible frequency management.

It can be understood that, the above-mentioned Embodiment 1, Embodiment 2 and Embodiment 3 may be used alone or in combination, which are not limited in the embodiments of the present application.

The BWP determination method has been described in detail above with reference to FIG. 6 , FIG. 7 and FIG. 10 . Based on the same inventive concept as the BWP determination method, an embodiment of the present application further provides a communication device. As shown in FIG. 11 , the communication The apparatus 1100 includes a processing unit 1101 and a transceiver unit 1102, and the apparatus 1100 can be used to implement the methods described in the foregoing method embodiments applied to terminal equipment.

In one embodiment, the apparatus 1100 is applied to a terminal device.

Specifically, the transceiver unit 1102 is configured to acquire the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the bandwidth part BWP, and the bandwidth range of the BWP is greater than 275 Resource block RB; the second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is the starting position of the BWP;

The processing unit 1101 is configured to determine the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.

In an implementation manner, the first bandwidth parameter is the carrier bandwidth of the cell currently accessed by the terminal device.

In an implementation manner, the carrier bandwidth of the current cell is the public bandwidth of the cell or the public bandwidth broadcast in the public broadcast message.

In an implementation manner, the starting position of the BWP is related to the starting position of the carrier bandwidth dedicated to the terminal device.

In an implementation manner, the processing unit 1101 is specifically configured to

in,

if

and

or

if

and

or

in,

for 275 RBs,

RIV is used to indicate the starting position and bandwidth of the BWP.

In an implementation manner, the frequency range of the carrier bandwidth dedicated to the terminal device completely overlaps, or partially overlaps, or does not overlap with the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device.

In a possible design, the subcarrier intervals of the multiple carrier bandwidths are the same.

In another embodiment, the apparatus 1100 is applied to a terminal device.

Specifically, the transceiver unit 1102 is configured to obtain a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the bandwidth part BWP; the second bandwidth parameter is the The bandwidth of the BWP, the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is used to indicate the starting position of the BWP, and the starting position of the BWP is the same as the one dedicated to the terminal device. The starting position of the carrier bandwidth is related;

In yet another embodiment, the apparatus 1100 is applied to a terminal device.

Specifically, the transceiver unit 1102 is configured to receive first signaling, where the first signaling is used to configure multiple carrier bandwidths for the terminal device, wherein the dedicated carrier bandwidth for the terminal device includes the multiple carrier bandwidths ;

The processing unit 1101 is configured to determine the first signaling.

In a possible design, the multiple carrier bandwidths are the same.

In one implementation, the first signaling is further used to configure multiple BWPs, wherein each carrier bandwidth includes one or more BWPs.

In a possible design, the multiple carrier bandwidths are the same.

In a possible design, the parameter parts of the BWP included in different dedicated carrier bandwidths are configured uniformly.

In one implementation, the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth.

It should be noted that the division of modules in the embodiments of the present application is schematic, and is only a logical function division. In actual implementation, there may be other division methods. In addition, each functional unit in each embodiment of the present application It can be integrated in one processing unit, or it can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Based on the same concept as the above-mentioned BWP determination method, as shown in FIG. 12 , an embodiment of the present application further provides a schematic structural diagram of a communication apparatus 1200 . The apparatus 1200 may be configured to implement the methods described in the foregoing method embodiments applied to terminal equipment, and reference may be made to the descriptions in the foregoing method embodiments. The apparatus 1200 may be in a terminal device or be a terminal device.

The apparatus 1200 includes one or more processors 1201 . The processor 1201 may be a general-purpose processor or a special-purpose processor or the like. For example, it may be a baseband processor, or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (eg, base stations, terminals, or chips, etc.), execute software programs, and process data of software programs. The communication device may include a transceiving unit for implementing signal input (reception) and output (transmission). For example, the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The apparatus 1200 includes one or more processors 1201, and the one or more processors 1201 can implement the method of the terminal device in the above-mentioned embodiments.

Optionally, the processor 1201 may also implement other functions in addition to implementing the methods in the above-described embodiments.

Optionally, in one design, the processor 1201 may execute an instruction, so that the apparatus 1200 executes the method described in the foregoing method embodiments. The instructions may be stored in whole or in part within the processor, such as instruction 1203, or may be stored in whole or in part in a memory 1202 coupled to the processor, such as instruction 1204, or may be jointly caused by

instructions

1203 and 1204. The apparatus 1200 executes the methods described in the above method embodiments.

In another possible design, the communication apparatus 1200 may also include a circuit, and the circuit may implement the functions of the terminal device in the foregoing method embodiments.

In yet another possible design, the apparatus 1200 may include one or more memories 1202 with instructions 1204 stored thereon, and the instructions may be executed on the processor to cause the apparatus 1200 to execute the above The method described in the method example. Optionally, data may also be stored in the memory. Instructions and/or data may also be stored in the optional processor. For example, the one or more memories 1202 may store the correspondences described in the foregoing embodiments, or related parameters or tables involved in the foregoing embodiments, and the like. The processor and the memory can be provided separately or integrated together.

In yet another possible design, the apparatus 1200 may further include a transceiver unit 1205 and an antenna 1206 . The processor 1201 may be referred to as a processing unit, and controls an apparatus (terminal or base station). The transceiver unit 1205 may be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the device through the antenna 1206 .

It should be noted that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. 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 conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, implements the BWP determination method described in any of the foregoing method embodiments applied to a terminal device.

The embodiments of the present application further provide a computer program product, which implements the BWP determination method described in any of the foregoing method embodiments applied to a terminal device when the computer program product is executed by a computer.

An embodiment of the present application further provides a communication system, where the communication system includes a network device and a terminal device, and the terminal device is configured to implement the BWP determination method described in any of the above method embodiments.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (eg infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks, SSD)) etc.

An embodiment of the present application further provides a processing apparatus, including a processor and an interface; the processor is configured to execute the BWP determination method described in any of the foregoing method embodiments applied to a terminal device.

It should be understood that the above-mentioned processing device may be a chip, and the processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software At the time, the processor can be a general-purpose processor, which is realized by reading the software codes stored in the memory, and the memory can be integrated in the processor, and can be located outside the processor and exist independently.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. Interchangeability, the above description has generally described the components and steps of each example in terms of function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above may refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.

Units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solutions of the embodiments of the present application.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

From the description of the above embodiments, those skilled in the art can clearly understand 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 medium can be any available medium that a computer can access. By way of example and not limitation, computer readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or be capable of carrying or storing instructions or data structures in the form of desired program code and any other medium that can be accessed by a computer. also. Any connection can be appropriately made into a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fusing of the pertinent medium. Disk and disc, as used in this application, includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and blu-ray disc, where disks generally reproduce data magnetically, and discs Lasers are used to optically copy data. Combinations of the above should also be included within the scope of computer-readable media.

In a word, the above descriptions are only preferred embodiments of the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

A method for determining a bandwidth portion BWP, comprising:

The terminal device determines the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter;

The first bandwidth parameter is the bandwidth range of the BWP, and the bandwidth range of the BWP is greater than 275 resource blocks RB;

The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP;

The third bandwidth parameter is the starting position of the BWP.
The method of claim 1, wherein the first bandwidth parameter is a carrier bandwidth of a cell currently accessed by the terminal device.
The method according to claim 1 or 2, wherein the starting position of the BWP is related to the starting position of the carrier bandwidth dedicated to the terminal device.
The method according to any one of claims 1-3, wherein the terminal device determines, according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter, the starting position and the starting position of the BWP of the terminal device. Bandwidth, including:

if
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:

Otherwise, the starting position of the BWP and the bandwidth indication parameter RIV satisfy the following formula:

in,
is the first bandwidth parameter, L RBs is the second bandwidth parameter, RB start is the third bandwidth parameter, and RIV is used to indicate the starting position and bandwidth of the BWP.
The method according to any one of claims 1-3, wherein the terminal device determines, according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter, the starting position and the starting position of the BWP of the terminal device. Bandwidth, including:

if
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:

if
and
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:

or

or

if
and
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:

or

or

in,
is the first bandwidth parameter, L RBs is the second bandwidth parameter, RB start is the third bandwidth parameter,
for 275 RBs,
RIV is used to indicate the starting position and bandwidth of the BWP.
The method according to any one of claims 3-5, wherein the frequency range of the carrier bandwidth dedicated to the terminal device completely overlaps or partially overlaps with the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device , or do not overlap.
The method according to any one of claims 2-6, wherein the carrier bandwidth of the current access cell is a public bandwidth of the cell or a public bandwidth broadcast in a public broadcast message.
The method according to any one of claims 3-7, wherein the carrier bandwidth dedicated to the terminal device includes multiple carrier bandwidths, and each carrier bandwidth includes one or more BWPs.
The method according to claim 8, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal device in one cell.
The method according to claim 8, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal device in one cell, and the subcarrier intervals of the multiple carrier bandwidths are the same.
The method according to any one of claims 8-10, wherein the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth.
The method according to any one of claims 8-11, wherein the multiple carrier bandwidths are multiple uplink bandwidths or multiple downlink bandwidths.
The method according to any one of claims 1-12, wherein the starting position of the BWP is related to the starting position of the Nth common uplink or downlink carrier bandwidth broadcast by the cell, and N is greater than or equal to 2 the integer.
A method for determining a bandwidth portion BWP, comprising:

The terminal device determines the starting position and bandwidth of the bandwidth part BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter;

The first bandwidth parameter is the bandwidth range of the BWP;

The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP;

The third bandwidth parameter is used to indicate the starting position of the BWP, and the starting position of the BWP is related to the starting position of the carrier bandwidth dedicated to the terminal device.
The method according to claim 14, wherein the frequency range of the carrier bandwidth dedicated to the terminal device completely overlaps, or partially overlaps, or does not overlap with the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device.
A method for determining a bandwidth portion BWP, comprising:

The terminal device determines the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter;

The first bandwidth parameter is the bandwidth range of the BWP;

The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP;

The third bandwidth parameter is used to indicate the starting position of the BWP, where the starting position of the BWP is related to the starting position of the Nth broadcast carrier bandwidth, and N is an integer greater than or equal to 2.
The method of claim 16, wherein the frequency range of the carrier bandwidth of the Nth broadcast completely overlaps, or partially overlaps, or does not overlap with the frequency range of the carrier bandwidth of the first broadcast.
A method for determining a bandwidth portion BWP, comprising:

The terminal equipment receives first signaling, where the first signaling is used to configure multiple carrier bandwidths for the terminal equipment, wherein the carrier bandwidth dedicated to the terminal equipment includes the multiple carrier bandwidths.
The method of claim 18, wherein the first signaling is further used to configure a plurality of BWPs, wherein each carrier bandwidth includes one or more BWPs.
The method of claim 19, wherein the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth.
The method according to any one of claims 18-20, wherein the frequency range of the carrier bandwidth dedicated to the terminal device completely overlaps or partially overlaps with the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device , or do not overlap.
The method according to any one of claims 18-21, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal device in one cell.
The method according to any one of claims 18-21, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal device in one cell, and the subcarrier intervals of the multiple carrier bandwidths are the same.
The method according to any one of claims 18-23, wherein the multiple carriers have the same bandwidth.
The method according to any one of claims 18 to 24, wherein the plurality of carrier bandwidths are composed of consecutive subcarriers in the frequency domain; or

The plurality of carrier bandwidths are continuous frequencies in the frequency domain.
The method according to any one of claims 19-25, wherein the BWPs included in different dedicated carrier bandwidths are mirrored BWPs; or

Some or all of the BWPs contained in different dedicated carrier bandwidths are copies of the same BWP configuration; or

Some or all of the parameters of the BWP contained in different dedicated carrier bandwidths are the same; or

The starting positions of the BWPs in different carrier bandwidths are at the same distance from the starting positions of the respective carrier bandwidths.
The method according to any one of claims 18-26, wherein the multiple carrier bandwidths are multiple uplink bandwidths or multiple downlink bandwidths.
The method according to any one of claims 18-27, wherein the starting position of the BWP is related to the starting position of the Nth common uplink or downlink carrier bandwidth broadcast by the cell, and N is greater than or equal to 2 the integer.
A communication device, comprising a processing unit and a transceiver unit;

The transceiver unit is configured to acquire the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the bandwidth part BWP, and the bandwidth range of the BWP is greater than 275 resource blocks RB; The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is the starting position of the BWP;

The processing unit is configured to determine the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.
The apparatus of claim 29, wherein the first bandwidth parameter is a carrier bandwidth of a cell currently accessed by the terminal device.
The apparatus according to claim 29 or 30, wherein the starting position of the BWP is related to the starting position of the carrier bandwidth dedicated to the terminal device.
The device according to any one of claims 29-31, wherein the processing unit is specifically configured to
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:
Otherwise, the starting position of the BWP and the bandwidth indication parameter RIV satisfy the following formula:
in,
is the first bandwidth parameter, L RBs is the second bandwidth parameter, RB start is the third bandwidth parameter, and RIV is used to indicate the starting position and bandwidth of the BWP.
The device according to any one of claims 29-32, wherein the processing unit is specifically configured to
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:
if
and
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:

or

or
if
and
The starting position of the BWP and the indication parameter RIV of the bandwidth satisfy the following formula:
or
or
in,
is the first bandwidth parameter, L RBs is the second bandwidth parameter, RB start is the third bandwidth parameter,
for 275 RBs,
RIV is used to indicate the starting position and bandwidth of the BWP.
The apparatus according to any one of claims 31-33, wherein the frequency range of the carrier bandwidth dedicated to the terminal device completely overlaps or partially overlaps the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device , or do not overlap.
The apparatus according to any one of claims 31-34, wherein the carrier bandwidth of the currently accessed cell is a public bandwidth of the cell or a public bandwidth broadcast in a public broadcast message.
The apparatus according to any one of claims 30-34, wherein the carrier bandwidth dedicated to the terminal device includes multiple carrier bandwidths, and each carrier bandwidth includes one or more BWPs.
The apparatus of claim 36, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal device in one cell.
The apparatus of claim 36, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal equipment in one cell, and the subcarrier intervals of the multiple carrier bandwidths are the same.
The apparatus according to any one of claims 36-38, wherein the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth.
The apparatus according to any one of claims 36-39, wherein the multiple carrier bandwidths are multiple uplink bandwidths or multiple downlink bandwidths.
The apparatus according to any one of claims 29-40, wherein the starting position of the BWP is related to the starting position of the Nth common uplink or downlink carrier bandwidth broadcast by the cell, and N is greater than or equal to 2 the integer.
A communication device, comprising a processing unit and a transceiver unit;

The transceiver unit is configured to acquire a first bandwidth parameter, a second bandwidth parameter and a third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the bandwidth part BWP; the second bandwidth parameter is the bandwidth of the BWP, The bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is used to indicate the starting position of the BWP, and the starting position of the BWP is the starting position of the carrier bandwidth dedicated to the terminal device. related to the starting position;

The processing unit is configured to determine the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter.
The apparatus of claim 42, wherein the frequency range of the carrier bandwidth dedicated to the terminal device completely overlaps, or partially overlaps, or does not overlap with the frequency range of the carrier bandwidth of the cell currently accessed by the terminal device.
A communication device, comprising a processing unit and a transceiver unit;

The transceiver unit is configured to determine the starting position and bandwidth of the BWP of the terminal device according to the first bandwidth parameter, the second bandwidth parameter and the third bandwidth parameter; the first bandwidth parameter is the bandwidth range of the BWP ; The second bandwidth parameter is the bandwidth of the BWP, and the bandwidth of the BWP is less than or equal to the bandwidth range of the BWP; the third bandwidth parameter is used to indicate the starting position of the BWP, and the bandwidth of the BWP is The starting position is related to the starting position of the Nth broadcast carrier bandwidth, where N is an integer greater than or equal to 2.
The apparatus of claim 44, wherein the frequency range of the carrier bandwidth of the Nth broadcast completely overlaps, or partially overlaps, or does not overlap with the frequency range of the carrier bandwidth of the first broadcast.
A communication device, comprising a processing unit and a transceiver unit;

The transceiver unit is configured to receive first signaling, where the first signaling is used to configure multiple carrier bandwidths for the terminal equipment, wherein the dedicated carrier bandwidth for the terminal equipment includes the multiple carrier bandwidths;

The processing unit is configured to determine the first signaling.
The apparatus of claim 46, wherein the first signaling is further used to configure a plurality of BWPs, wherein each carrier bandwidth includes one or more BWPs.
The apparatus of claim 47, wherein the frequency ranges of each carrier bandwidth do not overlap, and each BWP belongs to one carrier bandwidth.
The apparatus according to any one of claims 46-48, wherein the frequency range of the carrier bandwidth dedicated to the terminal equipment completely overlaps or partially overlaps with the frequency range of the carrier bandwidth of the cell currently accessed by the terminal equipment , or do not overlap.
The apparatus according to any one of claims 46-49, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal equipment in one cell.
The apparatus according to any one of claims 46-49, wherein the multiple carrier bandwidths are multiple dedicated carrier bandwidths of the terminal equipment in one cell, and the subcarrier intervals of the multiple carrier bandwidths are the same.
The apparatus according to any one of claims 46-51, wherein the multiple carrier bandwidths have the same bandwidth.
The apparatus according to any one of claims 46-51, wherein the plurality of carrier bandwidths are formed by continuous sub-carriers in the frequency domain; or

The plurality of carrier bandwidths are continuous frequencies in the frequency domain.
The apparatus according to any one of claims 47-53, wherein the BWPs included in different dedicated carrier bandwidths are mirrored BWPs; or

Some or all of the BWPs contained in different dedicated carrier bandwidths are copies of the same BWP configuration; or

Some or all of the parameters of the BWP contained in different dedicated carrier bandwidths are the same; or

The starting positions of BWPs in different carrier bandwidths are at the same distance from the starting positions of the respective carrier bandwidths.
The apparatus according to any one of claims 46-54, wherein the multiple carrier bandwidths are multiple uplink bandwidths or multiple downlink bandwidths.
The apparatus according to any one of claims 46-55, wherein the starting position of the BWP is related to the starting position of the Nth common uplink or downlink carrier bandwidth broadcast by the cell, and N is greater than or equal to 2 the integer.
A communication device, comprising a processor and a memory, the processor being coupled to the memory;

memory for storing computer programs;

A processor for executing a computer program stored in the memory to cause the apparatus to perform a method as claimed in any one of claims 1-13, or to perform a method as claimed in any one of claims 14-15 A method, or performing a method as claimed in any one of claims 16-17, or performing a method as claimed in any one of claims 18-28.
A computer-readable storage medium, characterized by comprising a program or an instruction, when the program or instruction is run on a computer, the method according to any one of claims 1-13 is executed, or the method as claimed in claim 1 is executed. The method of any of 14-15 is performed, or the method of any of claims 16-17 is performed, or the method of any of claims 18-28 is performed.
A computer program product, characterized in that it includes a program or an instruction, when the program or instruction is run on a computer, the method according to any one of claims 1-13 is performed, or the method according to claim 14- The method of any of 15 is performed, or the method of any of claims 16-17 is performed, or the method of any of claims 18-28 is performed.
A chip, characterized in that, the chip is coupled to a memory for reading and executing program instructions stored in the memory, to execute the method according to any one of claims 1-13, or to execute the method described in any of claims 1-13. The method of any of claims 14-15, or the method of any of claims 16-17 is performed, or the method of any of claims 18-28 is performed.