Communication method and communication device

Abstract

The present application relates to a communication method and a communication device. The method comprises: a first communication device receiving configuration information, wherein the configuration information is used for configuring a correspondence between a bandwidth part (BWP) and user data information and / or time-domain information. In the embodiments of the present application, a BWP can be utilized to prevent the increase of the number of cells along with the increase of user data information and / or time-domain information, thereby reducing the resource consumption.

Description

Communication method and communication device Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a communication method and a communication device. Background Art

[0002] In communications systems, cells are typically used to support different carriers. As the number of carriers to be aggregated increases, the number of cells required to be aggregated also increases. Supporting each cell requires relatively independent resources, and as the number of cells increases, so too do the resources required.

[0003] Summary of the Invention

[0004] The embodiments of the present application provide a communication method and a communication device, which can reduce resource consumption of a communication system.

[0005] An embodiment of the present application provides a communication method, including:

[0006] The first communication device receives configuration information, where the configuration information is used to configure a correspondence between a bandwidth segment BWP and user data information and / or time domain information.

[0007] An embodiment of the present application provides a communication method, including:

[0008] The second communication device configures a correspondence between the BWP and the user data information and / or the time domain information.

[0009] An embodiment of the present application provides a first communication device, including:

[0010] The receiving unit is configured to receive configuration information, where the configuration information is used to configure a correspondence between a bandwidth segment BWP and user data information and / or time domain information.

[0011] An embodiment of the present application provides a second communication device, including:

[0012] The processing unit is used to configure the correspondence between the BWP and the user data information and / or the time domain information.

[0013] An embodiment of the present application provides a communication device, comprising: a transceiver, a processor, and a memory. The memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to call and execute the computer program stored in the memory so that the communication device performs the above-mentioned communication method.

[0014] An embodiment of the present application provides a chip for implementing the above-mentioned communication method.

[0015] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned communication method.

[0016] An embodiment of the present application provides a computer-readable storage medium for storing a computer program, which, when executed by a device, enables the device to execute the above-mentioned communication method.

[0017] An embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned communication method.

[0018] An embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned communication method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of an application scenario according to an embodiment of the present application.

[0020] FIG2 is a schematic diagram of a protocol stack architecture with separated bearer.

[0021] FIG3 is a schematic diagram of BWP carrier aggregation.

[0022] FIG4 is a schematic flowchart of a communication method according to an embodiment of the present application.

[0023] FIG5 is a schematic flowchart of a communication method according to another embodiment of the present application.

[0024] FIG6 is a schematic flowchart of a communication method according to another embodiment of the present application.

[0025] FIG7 is a schematic flowchart of a communication method according to an embodiment of the present application.

[0026] FIG8 is a schematic flowchart of a communication method according to another embodiment of the present application.

[0027] FIG9 is a schematic flowchart of a communication method according to another embodiment of the present application.

[0028] FIG10 is a schematic block diagram of a first communication device according to an embodiment of the present application.

[0029] FIG11 is a schematic block diagram of a second communication device according to an embodiment of the present application.

[0030] FIG12 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0031] FIG13 is a schematic block diagram of a chip according to an embodiment of the present application.

[0032] FIG14 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0034] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), Fifth Generation (5G) system or other communication systems.

[0035] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0036] In one embodiment, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0037] In one embodiment, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.

[0038] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0039] The terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0040] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0041] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0042] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0043] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in a WLAN, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0044] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0045] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0046] FIG1 exemplarily illustrates a communication system 100. The communication system includes a network device 110 and two terminal devices 120. In one embodiment, the communication system 100 may include multiple network devices 110, and each network device 110 may include a different number of terminal devices 120 within its coverage area, which is not limited in this embodiment of the present application.

[0047] In one embodiment, the communication system 100 may further include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), which is not limited in this embodiment of the present application.

[0048] Among them, the network equipment may include access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks for communicating with the access network equipment. The access network equipment can be an evolutionary base station (evolutional node B, abbreviated as eNB or e-NodeB) macro base station, micro base station (also called "small base station"), pico base station, access point (AP), transmission point (TP) or new generation base station (new generation Node B, gNodeB), etc. in a long-term evolution (LTE) system, a next-generation (mobile communication system) (next radio, NR) system or an authorized auxiliary access long-term evolution (LAA-LTE) system.

[0049] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system shown in Figure 1 as an example, the communication device may include a network device and a terminal device having a communication function. The network device and the terminal device may be specific devices in the embodiments of the present application and will not be described in detail here. The communication device may also include other devices in the communication system, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0050] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0051] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0052] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0053] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0054] 1 Protocol Stack Architecture

[0055] In the 5G system, with a dual-connectivity architecture, the protocol stacks of the user plane and control plane are relatively complex.

[0056] In a dual-connectivity architecture, a network node is composed of two nodes, namely a master node (MN) and a secondary node (SN). The Packet Data Convergence Protocol (PDCP) and Service Data Adaptation Protocol (SDAP) protocol stacks and the corresponding protocol stacks below PDCP (such as Radio Link Control (RLC), Medium Access Control (MAC) and Physical layer (PHY)) may be located in different network nodes. There is no problem of distinguishing different nodes within the terminal, but there is a problem of the roles of cell groups, that is, it is necessary to distinguish between the main cell group (MCG) and the secondary cell group (SCG). The difference between MCG and SCG comes from the difference in the protocol layers (i.e. MAC and PHY) of different radio bearer aggregation.

[0057] For Evolved Universal Mobile Telecommunications System Terrestrial Radio Access and New Radio Dual Connectivity (E-UTRA (Evolved Universal Mobile Telecommunications System Terrestrial Radio Access) NR Dual Connectivity, EN-DC), from the network side, the composition of the radio bearer is shown in Figure 2: When the RLC, MAC, and PHY protocol stacks of a radio bearer are located in the MN, such a radio bearer is called an MCG bearer, otherwise it is called an SCG bearer. The split bearer mentioned above has radio links on both the MN and the SN, but only one PDCP protocol stack. This PDCP protocol stack may be on the MN or the SN. The purpose of the split bearer is to increase the throughput of the radio interface.

[0058] 2Carrier Aggregation

[0059] In each cell group, one or more cells can be supported to support carrier aggregation. In carrier aggregation (CA), two or more component carriers (CCs) are aggregated together. The UE can receive or transmit simultaneously on one or more CCs based on its own capabilities. For example:

[0060] A UE with CA single timing advance (TA) capability can simultaneously receive and / or transmit on multiple CCs corresponding to multiple serving cells sharing the same timing advance (multiple serving cells are grouped into a timing advance group (TAG)).

[0061] A UE with CA multiple timing advance capability can simultaneously receive and / or send different timing advances on multiple CCs corresponding to multiple serving cells (multiple serving cells are grouped in multiple TAGs).

[0062] For example, the maximum number of CCs configured for a UE is: 16 for downlink (DL) and 16 for uplink (UL).

[0063] 3 cells and BWP

[0064] From a frequency domain energy-saving perspective, 5G introduces bandwidth part (BWP) functionality. As mentioned earlier, NR's carrier bandwidth is significantly larger than LTE, with many core frequency bands supporting a typical 100MHz carrier bandwidth. The advantage of large bandwidth is high transmission rates. However, if the service mode involves small data transmission volumes or discontinuous service, operating the UE in large bandwidth mode is highly uneconomical. BWP can be a bandwidth smaller than both the cell's carrier bandwidth and the terminal's bandwidth capability. When the amount of data transmitted over the air interface is relatively low, the terminal operates within a smaller bandwidth for transceiver operations under dynamic configuration on the network side. This allows the terminal's RF front-end components, RF transceiver, and baseband signal processing module to operate within a smaller processing bandwidth and lower processing clock speed, resulting in lower power consumption.

[0065] Since the BWP can be an access bandwidth smaller than both the cell system bandwidth and the terminal bandwidth capability, all terminal transmission and reception operations can be performed within this smaller bandwidth, enabling more flexible, efficient, and power-efficient terminal operation in the 5G large-bandwidth system. LTE's maximum single-carrier system bandwidth is 20MHz, and the terminal's single-carrier bandwidth capability is also 20MHz, so there is no situation where the terminal capability is less than the cell system bandwidth. In the 5G NR system, the maximum carrier bandwidth will be significantly increased (e.g., 400MHz), but the increase in terminal bandwidth capability will clearly not keep pace with the network side (e.g., 100MHz). In addition, the terminal does not need to always operate at its maximum bandwidth capability. To save power and achieve more efficient frequency domain operation, it can operate at a smaller bandwidth, which is the BWP, as shown in Figure 3.

[0066] In summary, the NR system supports the concepts of cell group-cell and carrier-BWP in a hierarchical manner.

[0067] Since "cells" are used to support different carriers, when the number of carriers that need to be aggregated increases, the number of cells that need to be aggregated will also increase. In a communication system, in order to support a cell, relatively independent resources need to be consumed, such as reference signals, synchronization signals and downlink broadcast channel blocks (Synchronization Signal And Physical Downlink Broadcast Channel Block, SS&PBCH Block, abbreviated as SSB), hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) cache, control channel resources, etc. Specific examples: different cells need to independently define SSB reference signals; different cells will occupy different HARQ caches; different cells require independent control channel resources, etc.

[0068] Usually, independent parameters need to be configured for each cell. Different parameters correspond to relatively independent resource consumption. For example, refer to the Information Element (IE) of the Serving Cell Configuration (Serving Cell Config).

[0069] The embodiments of the present application can further expand the concept of cells, for example, from only covering in-band continuous frequency resources to covering in-band non-continuous and cross-band frequency resources, to avoid the linear increase of the number of cells with the aggregated frequency resources. In this way, the concept of cell groups in the NR system can be weakened or removed, and one cell can be used to aggregate multiple traditional carriers. Therefore, some functions completed through the cell group concept in the original NR system can be completed through cells, and functions completed through the cell concept can be completed through BWP. For example, the embodiments of the present application can use BWP to cover a variety of different situations (such as in-band non-continuous frequency resources, cross-band frequency resources, etc.).

[0070] FIG4 is a schematic flow chart of a communication method 400 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0071] S410: A first communication device receives configuration information, where the configuration information is used to configure a correspondence between a bandwidth segment (BWP) and user data information and / or time domain information.

[0072] In an embodiment of the present application, a first communication device may receive configuration information from a second communication device. For example, the first communication device may be a terminal device, and the second communication device may be a network device. The BWP may be smaller than the maximum carrier bandwidth supported by the cell and / or the maximum bandwidth supported by the terminal. In one case, the network device may configure an applicable BWP for the user data information, or may configure corresponding user data information for the BWP. In another case, the network device may configure corresponding time domain information for the BWP, or may configure a corresponding BWP for the time domain information. In an embodiment of the present application, the BWP may be used to avoid an increase in the number of cells as the user data information and / or time domain information increases, thereby reducing resource consumption.

[0073] In one embodiment, the user data information may include a logical channel. The correspondence between the BWP and the user data information includes the correspondence between the BWP and the logical channel.

[0074] In one embodiment, the correspondence between the BWP and the logical channel includes at least one of the following:

[0075] Multiple BWPs applicable to one logical channel;

[0076] One BWP corresponds to multiple logical channels.

[0077] For example, the correspondence between BWP and logical channels includes: logical channel 1, applicable to BWP1 and BWP2; logical channel 2, applicable to BWP2 and BWP3. For another example, the correspondence between BWP and logical channels includes: BWP2 corresponds to logical channel 1 and logical channel 2; BWP3 corresponds to logical channel 2 and logical channel 3.

[0078] FIG5 is a schematic flow chart of a communication method 500 according to another embodiment of the present application. The method may include one or more features of the above method. In one embodiment, the method further includes:

[0079] S510. The first communication device receives first indication information, where the first indication information is used to indicate a BWP to which a resource belongs.

[0080] S520: The first communication device selects a logical channel according to the BWP to which the resource belongs, to generate a media access control protocol data unit (MAC-PDU).

[0081] In an embodiment of the present application, if the first communication device is a terminal device and the second communication device is a network device, the terminal device can receive first indication information from the network device. For example, if the first indication information indicates a certain resource, such as PRB1, it can be searched in the correspondence between BWP and logical channels based on the BWP to which PRB1 belongs, such as BWP1. If BWP1 is found to correspond to logical channel 1, a MAC-PDU can be generated based on the logical channel 1 and other logical channels that can be mapped to BWP1. For another example, if the first indication information indicates a certain resource, such as PRB10, it can be searched in the correspondence between BWP and logical channels based on the BWP to which PRB10 belongs, such as BWP2. If BWP2 is found to correspond to logical channel 1 and logical channel 2, logical channel 1 and logical channel 2 and other logical channels that can be mapped to BWP2 can be used to generate a MAC-PDU.

[0082] In one implementation, the configuration information is further used to configure a correspondence between carriers and / or cells and user data information.

[0083] In an embodiment of the present application, the correspondence between the carrier and / or cell and the user data information, and the correspondence between the BWP and the user data information can be configured through the same information or through different information. For example, the correspondence between the carrier and / or cell and the user data information, and the correspondence between the BWP and the user data information are configured simultaneously through a radio resource control (RRC) message. For another example, the correspondence between the carrier and / or cell and the user data information is configured through one RRC message, and the correspondence between the BWP and the user data information is configured through another RRC message.

[0084] In one implementation, the correspondence between the carrier and / or cell and the user data information includes the correspondence between the carrier and / or cell and the logical channel.

[0085] In one implementation, the correspondence between the carrier and / or cell and the logical channel is at least one of the following:

[0086] One or more carriers to which a logical channel applies;

[0087] One or more cells to which a logical channel applies;

[0088] One or more logical channels corresponding to a carrier;

[0089] One or more logical channels corresponding to a cell.

[0090] In the embodiments of the present application, the correspondence between carriers and / or cells and user data information, as well as the correspondence between BWPs and user data information, can be configured independently or in combination. For example, logical channel 1 can be configured to adapt to cell A, cell B, carrier C, and BWP1 under cell A. For another example, logical channel 2 can be configured to adapt to cell B, carrier C, and BWP1 and BWP2 under cell B.

[0091] In one embodiment, the method further comprises:

[0092] The first communication device receives second indication information, where the second indication information is used to indicate at least one of a carrier, a cell, and a BWP to which the resource belongs;

[0093] The first communication device selects a logical channel according to at least one of a carrier, a cell, and a BWP to which the resource belongs, to generate a MAC-PDU.

[0094] In an embodiment of the present application, if the first communication device is a terminal device and the second communication device is a network device, the terminal device may receive second indication information from the network device. For example, if the second indication information received by the first communication device includes PRB20, searching in the various corresponding relationships described above may find that PRB20 belongs to BWP2 under cell B, and then further finding that logical channel 2 corresponding to BWP2 and other logical channels that can be mapped to BWP2 generate MAC-PDUs.

[0095] For another example, if the received second indication information includes PRB30, searching in the various corresponding relationships above shows that PRB30 belongs to BWP3 under carrier C, and further finding that BWP3 corresponds to logical channel 2 and logical channel 3. Logical channel 2 and logical channel 3, as well as other logical channels that can be mapped to BWP3, can be used to generate a MAC-PDU.

[0096] FIG6 is a schematic flow chart of a communication method 600 according to another embodiment of the present application. The method may include one or more features of the above-described method. In one embodiment, the time domain information may include timing advance (TA) information. The correspondence between the BWP and the time domain information includes the correspondence between the BWP and the timing advance information.

[0097] In one embodiment, the TA information may include a timing advance group identifier (TAG ID). The correspondence between the BWP and the timing advance information includes a correspondence between the BWP and the TAG ID.

[0098] In one embodiment, the correspondence between the BWP and the TAG ID includes at least one of the following:

[0099] The tag ID to which the BWP belongs;

[0100] The BWP corresponding to a specific TAG ID.

[0101] For example, the correspondence between BWP and TAG ID includes: TAG ID1, applicable to BWP1 and BWP2; TAG ID2, applicable to BWP2 and BWP3. For another example, the correspondence between BWP and TAG ID includes: BWP2 corresponds to TAG ID1 and TAG ID2; BWP3 corresponds to TAG ID2 and TAG ID3.

[0102] In one embodiment, the method further comprises:

[0103] S610: The first communication device receives a first timing advance adjustment command, where the first timing advance adjustment command is used to indicate a target TAG ID;

[0104] S620: The first communication device applies the first timing advance adjustment command to each BWP corresponding to the target TAG ID to synchronously adjust the uplink timing advance of each BWP corresponding to the target TAG ID.

[0105] In an embodiment of the present application, if the first communication device is a terminal device and the second communication device is a network device, the terminal device can receive a first timing advance adjustment command from the network device. For example, if the first timing advance adjustment command includes or applies to a certain target TAGID, such as TAGID1, the corresponding relationship between BWP and TAGID can be searched based on TAGID1. If BWP1 and BWP2 are found to correspond to TAGID1, the uplink TA of BWP1 and BWP2 can be adjusted synchronously. For another example, if the first timing advance adjustment command includes or applies to a certain target TAGID, such as TAG ID3, the corresponding relationship between BWP and TAGID can be searched based on TAGID3. If BWP3 is found to correspond to TAG ID3, the uplink TA of BWP3 can be adjusted.

[0106] In one implementation, the configuration information is further used to configure a correspondence between a carrier and / or a cell and the timing advance information.

[0107] In the embodiments of the present application, the correspondence between the carrier and / or cell and the timing advance information, and the correspondence between the BWP and the timing advance information can be configured through the same information or through different information. For example, the correspondence between the carrier and / or cell and the timing advance information, and the correspondence between the BWP and the timing advance information can be configured simultaneously through one RRC message. For another example, the correspondence between the carrier and / or cell and the timing advance information can be configured through one RRC message, and the correspondence between the BWP and the timing advance information can be configured through another RRC message.

[0108] In one implementation, the correspondence between the carrier and / or cell and the timing advance information includes a correspondence between the carrier and / or cell and a TAG ID.

[0109] In one implementation, the correspondence between the carrier and / or cell and the TAG ID includes at least one of the following:

[0110] TAG ID to which the carrier belongs;

[0111] TAGID to which the cell belongs;

[0112] The carrier corresponding to a specific TAG ID;

[0113] The cell corresponding to a specific TAG ID.

[0114] In the embodiment of the present application, the correspondence between carriers and / or cells and timing advance information, as well as the correspondence between BWP and timing advance information, can be configured independently or in combination. The network device can configure different carriers, cells, and BWPs in these carriers and cells, and indicate the TAGIDs to which these carriers, cells, and BWPs belong. For example, BWP1 under cell B and carrier C can be configured to belong to TAG ID1; BWP2 under cell B and carrier C can be configured to belong to TAG ID2; and BWP2 under carrier C and cell A can be configured to belong to TAG ID4. For another example, TAG ID2 can be configured to correspond to BWP2 under cell B and carrier C; TAG ID3 can correspond to carrier C, and TAG ID5 can correspond to BWP2 under cell B.

[0115] In one embodiment, the method further comprises:

[0116] The first communication device receives a second timing advance adjustment command, where the second timing advance adjustment command is used to indicate a target TAG ID;

[0117] The first communication device applies the second timing advance adjustment command to at least one of the carriers, cells, BWPs in the carriers, and BWPs in the cells corresponding to the target TAG ID to synchronously adjust the uplink timing advance of at least one of the carriers, cells, BWPs in the carriers, and BWPs in the cells corresponding to the target TAG ID.

[0118] In an embodiment of the present application, if the first communication device is a terminal device and the second communication device is a network device, the terminal device can receive a second timing advance adjustment command from the network device. For example, if the second timing advance adjustment command includes or is applicable to a certain target TAG ID, such as TAG ID1, the corresponding relationship between at least one of the carrier, cell, and BWP and the TAG ID can be searched based on TAG ID1. If it is found that BWP1 under cell A corresponds to TAG ID1, and cell B and carrier C correspond to TAG ID1, the uplink TA of BWP1 under cell A, cell B, and carrier C can be adjusted synchronously. For another example, if the first timing advance adjustment command includes or is applicable to a certain target TAG ID, such as TAG ID2, the corresponding relationship between at least one of the carrier, cell, and BWP and the TAG ID can be searched based on TAG ID2. If it is found that BWP2 under cell B and carrier C correspond to TAG ID2, the uplink TA of BWP2 under cell B and carrier C can be adjusted.

[0119] In one embodiment, the method further includes: when a first timer of the target TAG expires, if the first timer is associated with a secondary timing advance group (STAG), the first communications device performs at least one of the following for all serving cells, carriers, or BWPs belonging to the target TAG:

[0120] Clear the HARQ buffer;

[0121] If a physical uplink control channel (PUCCH) has been configured, the radio resource control (RRC) layer is notified to release the PUCCH;

[0122] If a sounding reference signal (SRS) has been configured, notify the RRC layer to release the SRS;

[0123] Clearing configured downlink resource allocations and configured uplink resource grants;

[0124] Clearing physical uplink shared channel (PUSCH) resources used for semi-persistent channel state information (CSI) reporting;

[0125] Maintain the timing advance N of the target TAG TA .

[0126] For example, when the first timer timeAlignmentTimer of TAG ID1 times out, the above-mentioned clearing, releasing, and erasing operations may be performed on BWP1, cell B, and carrier C under cell A corresponding to TAG ID1.

[0127] For another example, when the first timer timeAlignmentTimer of TAG ID2 times out, the above-mentioned clearing, releasing, and erasing operations may be performed on BWP1, cell B, and carrier C under cell A corresponding to TAG ID1.

[0128] FIG7 is a schematic flow chart of a communication method 700 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0129] S710: The second communication device configures a correspondence between a BWP and user data information and / or time domain information.

[0130] FIG8 is a schematic flow chart of a communication method 800 according to another embodiment of the present application. The method can optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0131] S810: The second communication device sends configuration information, where the configuration information is used to configure a correspondence between the BWP and user data information and / or time domain information.

[0132] In one implementation, S710 may be performed first and then S810.

[0133] In one implementation, the correspondence between the BWP and the user data information includes a correspondence between the BWP and a logical channel.

[0134] In one embodiment, the correspondence between the BWP and the logical channel includes at least one of the following:

[0135] Multiple BWPs applicable to one logical channel;

[0136] One BWP corresponds to multiple logical channels.

[0137] FIG9 is a schematic flow chart of a communication method 900 according to another embodiment of the present application. The method may include one or more features of the above method. In one embodiment, the method further includes:

[0138] S910: The second communication device sends first indication information, where the first indication information is used to indicate a BWP to which the resource belongs.

[0139] In one implementation, the configuration information is further used to configure a correspondence between carriers and / or cells and user data information.

[0140] In one implementation, the correspondence between the carrier and / or cell and the user data information includes the correspondence between the carrier and / or cell and the logical channel.

[0141] In one implementation, the correspondence between the carrier and / or cell and the logical channel is at least one of the following:

[0142] One or more carriers to which a logical channel applies;

[0143] One or more cells to which a logical channel applies;

[0144] One or more logical channels corresponding to a carrier;

[0145] One or more logical channels corresponding to a cell.

[0146] In one embodiment, the method further includes: the second communication device sending second indication information, where the second indication information is used to indicate at least one of the carrier, cell, and BWP to which the resource belongs. After receiving the second indication information, the first communication device may select a logical channel based on at least one of the carrier, cell, and BWP to which the resource belongs, to generate a MAC-PDU. The second communication device sending the second indication information and the second communication device sending the first indication information may be two parallel methods. For example, if the network device needs to indicate more than just the BWP, the second indication information may be sent to the terminal device.

[0147] In one implementation, the correspondence between the BWP and the time domain information includes a correspondence between the BWP and timing advance information.

[0148] In one implementation, the correspondence between the BWP and the timing advance information includes a correspondence between the BWP and a timing advance group identifier TAG ID.

[0149] In one embodiment, the correspondence between the BWP and the TAG ID includes at least one of the following:

[0150] The tag ID to which the BWP belongs;

[0151] The BWP corresponding to a specific TAG ID.

[0152] In one embodiment, the method further comprises:

[0153] S920: The second communication device sends a first timing advance adjustment command, where the first timing advance adjustment command is used to indicate a target TAG ID, where the target TAG ID corresponds to each BWP.

[0154] In one implementation, the configuration information is further used to configure a correspondence between a carrier and / or a cell and the timing advance information.

[0155] In one implementation, the correspondence between the carrier and / or cell and the timing advance information includes a correspondence between the carrier and / or cell and a TAG ID.

[0156] In one implementation, the correspondence between the carrier and / or cell and the TAG ID includes at least one of the following:

[0157] TAGID to which the carrier belongs;

[0158] TAGID to which the cell belongs;

[0159] The carrier corresponding to a specific TAG ID;

[0160] The cell corresponding to a specific TAG ID.

[0161] In one embodiment, the method further includes: the second communication device sending a second timing advance adjustment command, where the second timing advance adjustment command is used to indicate a target TAG ID, where the target TAG ID corresponds to at least one of each carrier, each cell, a BWP in each carrier, and a BWP in each cell. The second communication device sending the second timing advance adjustment command and the second communication device sending the first timing advance adjustment command can be two parallel methods. For example, if the network device needs to indicate a target TAG ID that corresponds to more than one BWP, it can send the second timing advance adjustment command to the terminal device.

[0162] For specific examples of the second communication device executing methods 700, 800, and 900 of this embodiment, reference can be made to the relevant descriptions about the communication device in the above methods 400, 500, and 600, which will not be repeated here for the sake of brevity.

[0163] In the embodiment of the present application, by limiting the frequency domain resources applicable to specific logical channels and configuring the frequency domain resources of the UL timing advance group to the BWP granularity, some functions completed through the cell group concept in the original NR system are completed through the cell.

[0164] Example 1: Limiting the BWP applicable to a specific logical channel

[0165] In 5G systems, the network can limit the use of resources by configuring appropriate carriers or cells for logical channels. For example:

[0166] 1. For logical channel 1, configure its applicable carriers or cells as 1 and 2;

[0167] 2. For logical channel 2, configure its applicable carriers or cells as 2 and 3;

[0168] When the network provides a resource to a UE, it indicates the carrier or cell to which the resource belongs. Based on the carrier or cell to which the resource belongs, the UE selects the appropriate logical channel to generate a MAC-PDU, thereby selecting the appropriate frequency domain resource based on the data attributes carried by different logical channels.

[0169] According to the technical solution of the embodiment of the present application, since using carriers and cells to distinguish different frequency domain resources may bring about a lot of unnecessary resource consumption, it is more convenient to use BWP as the granularity of resource screening.

[0170] For example, the network configures different BWPs to indicate the frequency resources covered by each, such as BWP1, 2, and 3.

[0171] 1. For logical channel 1, configure its applicable BWP to 1, 2;

[0172] 2. For logical channel 2, configure its applicable BWP to 2, 3.

[0173] When the network provides a resource to the UE, it indicates to the UE the BWP to which the resource belongs. The UE can select the appropriate logical channel to generate the MAC-PDU based on the BWP to which the resource belongs.

[0174] Furthermore, the above solution can be combined with the traditional 5G solution. An example is as follows:

[0175] First, the network configures different carriers, cells, and BWPs in these carriers and cells, indicating the frequency resources covered by each, such as carrier, cell A, cell B, BWP1 and BWP2 under cell A, and BWP1 and BWP2 under cell B.

[0176] 1. For logical channel 1, configure its applicable carrier, BWP1 under cell A, and BWP2 under cell B;

[0177] 2. For logical channel 2, configure its applicable carrier, BWP2 under cell A, and BWP1 under cell B.

[0178] When the network provides a resource to a UE, it indicates the carrier and cell to which the resource belongs, as well as the BWP within that carrier and cell. The UE can select the appropriate logical channel to generate a MAC-PDU based on the carrier, cell, and BWP to which the resource belongs.

[0179] Example 2: Configuring UL Timing Advance Groups for Different BWPs

[0180] In the 5G system, UL timing advance is achieved by configuring TAGs (timing advance groups). The network configures TAG IDs for different cells. Cells configured with the same TAG ID use the same downlink synchronization and the same timing advance control. For example, if the UE receives a timing advance adjustment command from the network, the UE can apply the command to cells belonging to the same TAG ID, thereby synchronously adjusting the uplink timing advance of these cells.

[0181] According to the technical solution of the embodiment of the present application, since using carriers and cells to distinguish different frequency domain resources will bring about a lot of unnecessary resource consumption, it is more convenient to use BWP as the granularity of timing advance control.

[0182] For example, the network configures different BWPs to belong to the TAG ID, and BWPs configured with the same TAG ID use the same downlink synchronization and the same timing advance control. For example, if the UE receives a timing advance adjustment command from the network, the UE can apply the command to the BWPs belonging to the same TAG ID, thereby synchronously adjusting the uplink timing advance of these BWPs.

[0183] Furthermore, the above solution can be combined with the traditional 5G solution. An example is as follows:

[0184] First, the network configures different carriers, cells, and BWPs in these carriers and cells, indicating the TAG IDs to which they belong, such as carrier, cell A, cell B, and the TAG IDs to which BWP1 and BWP2 in cell A belong, and BWP1 and BWP2 in cell B belong.

[0185] If the UE receives a timing advance adjustment command from the network, the UE can apply the command to the BWPs of the carriers and cells belonging to the same TAGID, thereby synchronously adjusting the uplink timing advances of the BWPs of these carriers and cells.

[0186] When the first timer of a TAG, for example, timeAlignmentTimer, expires, in addition to the processing for the main TAG, if the timeAlignmentTimer is associated with the STAG, at least one of the following processing can also be performed for the serving cell, carrier or BWP associated with the TAG: (else if the timeAlignmentTimer is associated with an STAG, then for all Serving Cells, Carrier or BWP belonging to this TAG:):

[0187] Clear the HARQ buffer (flush all HARQ buffers;);

[0188] If PUCCH is configured, notify the RRC layer to release the PUCCH (notify RRC to release PUCCH, if configured;);

[0189] If SRS has been configured, notify the RRC layer to release the SRS (notify RRC to release SRS, if configured);

[0190] Clear any configured downlink assignments and configured uplink grants;

[0191] Clear any PUSCH resource for semi-persistent CSI reporting;

[0192] Maintain the timing advance of the TAG (maintain N TA of this TAG.).

[0193] FIG10 is a schematic block diagram of a first communication device 1000 according to an embodiment of the present application. The first communication device 1000 may include:

[0194] The receiving unit 1001 is configured to receive configuration information, where the configuration information is used to configure a correspondence between a bandwidth segment BWP and user data information and / or time domain information.

[0195] In one implementation, the correspondence between the BWP and the user data information includes a correspondence between the BWP and a logical channel.

[0196] In one embodiment, the correspondence between the BWP and the logical channel includes at least one of the following:

[0197] Multiple BWPs applicable to one logical channel;

[0198] One BWP corresponds to multiple logical channels.

[0199] In one embodiment, the receiving unit 1001 is further configured to receive first indication information, where the first indication information is used to indicate the BWP to which the resource belongs;

[0200] The device further includes: a processing unit 1002, configured to select a logical channel according to the BWP to which the resource belongs, so as to generate a media access control protocol data unit MAC-PDU.

[0201] In one implementation, the configuration information is further used to configure a correspondence between carriers and / or cells and user data information.

[0202] In one implementation, the correspondence between the carrier and / or cell and the user data information includes the correspondence between the carrier and / or cell and the logical channel.

[0203] In one implementation, the correspondence between the carrier and / or cell and the logical channel is at least one of the following:

[0204] One or more carriers to which a logical channel applies;

[0205] One or more cells to which a logical channel applies;

[0206] One or more logical channels corresponding to a carrier;

[0207] One or more logical channels corresponding to a cell.

[0208] In one embodiment, the receiving unit 1001 is further used to receive second indication information, which is used to indicate at least one of the carrier, cell and BWP to which the resource belongs; the processing unit is further used to select a logical channel based on at least one of the carrier, cell and BWP to which the resource belongs to generate a MAC-PDU.

[0209] In one implementation, the correspondence between the BWP and the time domain information includes a correspondence between the BWP and timing advance information.

[0210] In one implementation, the correspondence between the BWP and the timing advance information includes a correspondence between the BWP and a timing advance group identifier TAG ID.

[0211] In one embodiment, the correspondence between the BWP and the TAG ID includes at least one of the following:

[0212] The tag ID to which the BWP belongs;

[0213] The BWP corresponding to a specific TAG ID.

[0214] In one embodiment, the receiving unit 1001 is further used to receive a first timing advance adjustment command, where the first timing advance adjustment command is used to indicate a target TAG ID; the processing unit is used to apply the first timing advance adjustment command to each BWP corresponding to the target TAG ID to synchronously adjust the uplink timing advance of each BWP corresponding to the target TAG ID.

[0215] In one implementation, the configuration information is further used to configure a correspondence between a carrier and / or a cell and the timing advance information.

[0216] In one implementation, the correspondence between the carrier and / or cell and the timing advance information includes a correspondence between the carrier and / or cell and a TAG ID.

[0217] In one implementation, the correspondence between the carrier and / or cell and the TAG ID includes at least one of the following:

[0218] TAGID to which the carrier belongs;

[0219] TAGID to which the cell belongs;

[0220] The carrier corresponding to a specific TAG ID;

[0221] The cell corresponding to a specific TAG ID.

[0222] In one embodiment, the receiving unit 1001 is further used to receive a second timing advance adjustment command, where the second timing advance adjustment command is used to indicate a target TAG ID; the processing unit is further used to apply the second timing advance adjustment command to at least one of the carriers, cells, BWPs in carriers, and BWPs in cells corresponding to the target TAG ID, so as to synchronously adjust the uplink timing advance of at least one of the carriers, cells, BWPs in carriers, and BWPs in cells corresponding to the target TAG ID.

[0223] In one embodiment, the processing unit 1002 is further configured to, when a first timer of the target TAG times out, if the first timer is associated with a secondary timing advance group STAG, perform at least one of the following for all serving cells, carriers, or BWPs belonging to the target TAG:

[0224] Clear the hybrid automatic repeat request HARQ buffer;

[0225] If the physical uplink control channel PUCCH has been configured, the radio resource control RRC layer is notified to release the PUCCH;

[0226] If a sounding reference signal SRS has been configured, notify the RRC layer to release the SRS;

[0227] Clearing configured downlink resource allocations and configured uplink resource grants;

[0228] Clear the physical uplink shared channel (PUSCH) resources used for semi-persistent channel state information (CSI) reporting;

[0229] Maintain the timing advance N of the target TAG TA .

[0230] The first communication device 1000 of the embodiment of the present application can implement the corresponding functions of the first communication device in the aforementioned method embodiment. The processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the first communication device 1000 can be found in the corresponding descriptions in the above-mentioned method embodiments, and will not be repeated here. It should be noted that the functions described in the various modules (sub-modules, units or components, etc.) in the first communication device 1000 of the embodiment of the application can be implemented by different modules (sub-modules, units or components, etc.) or by the same module (sub-module, unit or component, etc.).

[0231] FIG11 is a schematic block diagram of a second communication device 1100 according to an embodiment of the present application. The second communication device 1100 may include:

[0232] The processing unit 1101 is configured to configure a correspondence between the BWP and user data information and / or time domain information.

[0233] In one embodiment, the device further comprises:

[0234] The sending unit 1102 is configured to send configuration information, where the configuration information is used to configure a correspondence between the BWP and user data information and / or time domain information.

[0235] In one implementation, the correspondence between the BWP and the user data information includes a correspondence between the BWP and a logical channel.

[0236] In one embodiment, the correspondence between the BWP and the logical channel includes at least one of the following:

[0237] Multiple BWPs applicable to one logical channel;

[0238] One BWP corresponds to multiple logical channels.

[0239] In one implementation, the sending unit 1102 is further configured to send first indication information, where the first indication information is used to indicate the BWP to which the resource belongs.

[0240] In one implementation, the configuration information is further used to configure a correspondence between carriers and / or cells and user data information.

[0241] In one implementation, the correspondence between the carrier and / or cell and the user data information includes the correspondence between the carrier and / or cell and the logical channel.

[0242] In one implementation, the correspondence between the carrier and / or cell and the logical channel is at least one of the following:

[0243] One or more carriers to which a logical channel applies;

[0244] One or more cells to which a logical channel applies;

[0245] One or more logical channels corresponding to a carrier;

[0246] One or more logical channels corresponding to a cell.

[0247] In an implementation manner, the sending unit 1102 is further configured to send second indication information, where the second indication information is used to indicate at least one of a carrier, a cell, and a BWP to which the resource belongs.

[0248] In one implementation, the correspondence between the BWP and the time domain information includes a correspondence between the BWP and timing advance information.

[0249] In one implementation, the correspondence between the BWP and the timing advance information includes a correspondence between the BWP and a timing advance group identifier TAG ID.

[0250] In one embodiment, the correspondence between the BWP and the TAG ID includes at least one of the following:

[0251] The tag ID to which the BWP belongs;

[0252] The BWP corresponding to a specific TAG ID.

[0253] In an implementation manner, the sending unit 1102 is further configured to send a first timing advance adjustment command, where the first timing advance adjustment command is used to indicate a target TAG ID, where the target TAG ID corresponds to each BWP.

[0254] In one implementation, the configuration information is further used to configure a correspondence between a carrier and / or a cell and the timing advance information.

[0255] In one implementation, the correspondence between the carrier and / or cell and the timing advance information includes a correspondence between the carrier and / or cell and a TAG ID.

[0256] In one implementation, the correspondence between the carrier and / or cell and the TAG ID includes at least one of the following:

[0257] TAGID to which the carrier belongs;

[0258] TAGID to which the cell belongs;

[0259] The carrier corresponding to a specific TAG ID;

[0260] The cell corresponding to a specific TAG ID.

[0261] In one implementation, the sending unit 1102 is further configured to send a second timing advance adjustment command, where the second timing advance adjustment command is used to indicate a target TAGID, where the target TAGID corresponds to at least one of each carrier, each cell, a BWP in each carrier, and a BWP in each cell.

[0262] The second communication device 1100 of the embodiment of the present application can implement the corresponding functions of the second communication device in the aforementioned method embodiment. The processes, functions, implementation methods and beneficial effects corresponding to each module (sub-module, unit or component, etc.) in the second communication device can be found in the corresponding description in the above-mentioned method embodiment, and will not be repeated here. It should be noted that the functions described in the various modules (sub-module, unit or component, etc.) in the second communication device of the embodiment of the application can be implemented by different modules (sub-module, unit or component, etc.) or by the same module (sub-module, unit or component, etc.).

[0263] Figure 12 is a schematic structural diagram of a communication device 1200 according to an embodiment of the present application. The communication device 1200 includes a processor 1210, which can call and execute a computer program from a memory to enable the communication device 1200 to implement the method in the embodiment of the present application.

[0264] In one embodiment, the communication device 1200 may further include a memory 1220. The processor 1210 may call and execute a computer program from the memory 1220 to enable the communication device 1200 to implement the method in the embodiment of the present application.

[0265] The memory 1220 may be a separate device independent of the processor 1210 , or may be integrated into the processor 1210 .

[0266] In one embodiment, the communication device 1200 may further include a transceiver 1230 , and the processor 1210 may control the transceiver 1230 to communicate with other devices. Specifically, the transceiver 1230 may send information or data to other devices, or receive information or data sent by other devices.

[0267] The transceiver 1230 may include a transmitter and a receiver. The transceiver 1230 may further include an antenna, and the number of antennas may be one or more.

[0268] In one embodiment, the communication device 1200 may be the first communication device of the embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the first communication device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0269] In one embodiment, the communication device 1200 may be the second communication device of the embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the second communication device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0270] 13 is a schematic structural diagram of a chip 1300 according to an embodiment of the present application. The chip 1300 includes a processor 1310, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

[0271] In one embodiment, the chip 1300 may further include a memory 1320. The processor 1310 may call and execute a computer program from the memory 1320 to implement the method executed by the first communication device or the second communication device in the embodiment of the present application.

[0272] The memory 1320 may be a separate device independent of the processor 1310 , or may be integrated into the processor 1310 .

[0273] In one embodiment, the chip 1300 may further include an input interface 1330. The processor 1310 may control the input interface 1330 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0274] In one embodiment, the chip 1300 may further include an output interface 1340. The processor 1310 may control the output interface 1340 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0275] In one embodiment, the chip can be applied to the first communication device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the first communication device in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0276] In one embodiment, the chip can be applied to the second communication device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the second communication device in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0277] The chip used in the first communication device and the second communication device may be the same chip or different chips.

[0278] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0279] The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0280] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM).

[0281] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0282] FIG14 is a schematic block diagram of a communication system 1400 according to an embodiment of the present application. The communication system 1400 includes a first communication device 1410 and a second communication device 1420 .

[0283] The first communication device 1410 is configured to receive configuration information, where the configuration information is used to configure a correspondence between a BWP and user data information and / or time domain information.

[0284] In one implementation, the second communication device 1420 is configured to configure a correspondence between the BWP and user data information and / or time domain information.

[0285] In one implementation, the second communication device 1420 is configured to send the configuration information.

[0286] The first communication device 1410 can be used to implement the corresponding functions implemented by the first communication device in the above method, and the second communication device 1420 can be used to implement the corresponding functions implemented by the second communication device in the above method. For the sake of brevity, they are not described here in detail.

[0287] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, 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 program instructions are loaded and executed on a computer, the process or function in accordance with the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0288] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0289] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0290] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, comprising: A first communication device receives configuration information for configuring the correspondence between a bandwidth part (BWP) and user data information and / or time domain information.

2. The method according to claim 1, wherein, The correspondence between the BWP and user data information includes the correspondence between the BWP and logical channels.

3. The method according to claim 2, wherein The correspondence between the BWP and logical channels includes at least one of the following: Multiple BWPs applicable to one logical channel; Multiple logical channels corresponding to one BWP.

4. The method according to claim 2 or 3, wherein The method further comprises: The first communication device receives first indication information for indicating the BWP to which a resource belongs; The first communication device selects a logical channel according to the BWP to which the resource belongs to generate a media access control protocol data unit (MAC-PDU).

5. The method according to any one of claims 1 to 3, wherein The configuration information is further used for configuring the correspondence between a carrier and / or a cell and user data information.

6. The method according to claim 5, wherein The correspondence between the carrier and / or the cell and user data information includes the correspondence between the carrier and / or the cell and logical channels.

7. The method according to claim 6, wherein, The correspondence between the carrier and / or the cell and logical channels includes at least one of the following: One or more carriers applicable to one logical channel; One or more cells applicable to one logical channel; One or more logical channels corresponding to one carrier; One or more logical channels corresponding to one cell.

8. The method according to claim 6 or 7, wherein The method further comprises: The first communication device receives second indication information for indicating at least one of the carrier, cell, and BWP to which a resource belongs; The first communication device selects a logical channel according to at least one of the carrier, cell, and BWP to which the resource belongs to generate a MAC-PDU.

9. The method according to claim 1, wherein, The correspondence between the BWP and time domain information includes the correspondence between the BWP and timing advance information.

10. The method according to claim 9, wherein The correspondence between the BWP and timing advance information includes the correspondence between the BWP and a timing advance group identifier (TAG ID).

11. The method according to claim 10, wherein, The correspondence between the BWP and the TAG ID includes at least one of the following: The TAG ID to which the BWP belongs; The BWP corresponding to a specific TAG ID.

12. The method according to claim 10 or 11, wherein, The method further comprises: The first communication device receives a first timing advance adjustment command for indicating a target TAG ID; The first communication device applies the first timing advance adjustment command to each BWP corresponding to the target TAG ID to synchronously adjust the uplink timing advance of each BWP corresponding to the target TAG ID.

13. The method according to any one of claims 1, 9 to 11, wherein, The configuration information is further used for configuring the correspondence between a carrier and / or a cell and timing advance information.

14. The method according to claim 13, wherein, The correspondence between the carrier and / or the cell and timing advance information includes the correspondence between the carrier and / or the cell and the TAG ID.

15. The method according to claim 14, wherein The correspondence between the carrier and / or the cell and the TAG ID includes at least one of the following: The TAG ID to which the carrier belongs; The TAG ID to which the cell belongs; The carrier corresponding to a specific TAG ID; The cell corresponding to a specific TAG ID.

16. The method according to claim 15, wherein, The method further comprises: The first communication device receives a second timing advance adjustment command, and the second timing advance adjustment command is used to indicate a target TAG ID; The first communication device applies the second timing advance adjustment command to at least one of each carrier, each cell, each BWP in each carrier, and each BWP in each cell corresponding to the target TAG ID, so as to synchronously adjust the uplink timing advance of at least one of each carrier, each cell, each BWP in each carrier, and each BWP in each cell corresponding to the target TAG ID.

17. The method according to claim 12 or 16, wherein, The method further includes: When the first timer of the target TAG expires, if the first timer is associated with a secondary timing advance group (STAG), the first communication device performs at least one of the following for all serving cells, carriers, or BWPs belonging to the target TAG: Empty the hybrid automatic repeat request (HARQ) buffer; If a physical uplink control channel (PUCCH) is configured, notify the radio resource control (RRC) layer to release the PUCCH; If a sounding reference signal (SRS) is configured, notify the RRC layer to release the SRS; Clear the configured downlink resource allocation and the configured uplink resource grant; Clear the physical uplink shared channel (PUSCH) resources for semi-persistent channel state information (CSI) reporting; Maintain the timing advance N of the target TAG TA .

18. A communication method, including: A second communication device configures the correspondence between a BWP and user data information and / or time domain information.

19. The method according to claim 18, wherein, The method further includes: The second communication device sends configuration information, and the configuration information is used to configure the correspondence between the BWP and user data information and / or time domain information.

20. The method according to claim 19, wherein, The correspondence between the BWP and user data information includes the correspondence between the BWP and logical channels.

21. The method according to claim 20, wherein, The correspondence between the BWP and logical channels includes at least one of the following: Multiple BWPs applicable to one logical channel; Multiple logical channels corresponding to one BWP.

22. The method according to claim 20 or 21, wherein, The method further includes: The second communication device sends first indication information, and the first indication information is used to indicate the BWP to which the resource belongs.

23. The method according to any one of claims 19 to 21, wherein The configuration information is further used to configure the correspondence between a carrier and / or a cell and user data information.

24. The method according to claim 23, wherein The correspondence between the carrier and / or the cell and user data information includes the correspondence between the carrier and / or the cell and logical channels.

25. The method according to claim 24, wherein, The correspondence between the carrier and / or the cell and logical channels includes at least one of the following: One or more carriers applicable to one logical channel; One or more cells applicable to one logical channel; One or more logical channels corresponding to one carrier; One or more logical channels corresponding to one cell.

26. The method according to claim 24 or 25, wherein The method further includes: The second communication device sends second indication information, and the second indication information is used to indicate at least one of the carrier, the cell, and the BWP to which the resource belongs.

27. The method according to claim 19, wherein The correspondence between the BWP and time domain information includes the correspondence between the BWP and timing advance information.

28. The method according to claim 27, wherein, The correspondence between the BWP and timing advance information includes the correspondence between the BWP and a timing advance group identifier (TAG ID).

29. The method according to claim 28, wherein, The correspondence between the BWP and the TAG ID includes at least one of the following: The TAG ID to which the BWP belongs; The BWP corresponding to the specific TAG ID.

30. The method according to claim 28 or 20, wherein The method further includes: The second communication device sends a first timing advance adjustment command, and the first timing advance adjustment command is used to indicate a target TAG ID, and the target TAG ID corresponds to each BWP.

31. The method according to any one of claims 19, 27 to 20, wherein, The configuration information is further used to configure the correspondence between the carrier and / or cell and the timing advance information.

32. The method according to claim 31, wherein, The correspondence between the carrier and / or cell and the timing advance information includes the correspondence between the carrier and / or cell and the TAG ID.

33. The method according to claim 32, wherein, The correspondence between the carrier and / or cell and the TAG ID includes at least one of the following: The TAG ID to which the carrier belongs; The TAG ID to which the cell belongs; The carrier corresponding to the specific TAG ID; The cell corresponding to the specific TAG ID.

34. The method according to claim 33, wherein, The method further includes: The second communication device sends a second timing advance adjustment command, and the second timing advance adjustment command is used to indicate a target TAG ID, and the target TAG ID corresponds to at least one of each carrier, each cell, the BWP in each carrier, and the BWP in each cell.

35. A first communication device, comprising: A receiving unit, configured to receive configuration information, where the configuration information is used to configure the correspondence between a bandwidth part BWP and user data information and / or time domain information.

36. The device according to claim 35, wherein, The correspondence between the BWP and the user data information includes the correspondence between the BWP and the logical channel.

37. The device according to claim 36, wherein, The correspondence between the BWP and the logical channel includes at least one of the following: Multiple BWPs applicable to one logical channel; Multiple logical channels corresponding to one BWP.

38. The apparatus according to claim 36 or 37, wherein, The receiving unit is further configured to receive first indication information, where the first indication information is used to indicate the BWP to which the resource belongs; The device further includes: a processing unit, configured to select a logical channel according to the BWP to which the resource belongs to generate a media access control protocol data unit MAC-PDU.

39. The apparatus according to any one of claims 35 to 37, wherein, The configuration information is further used to configure the correspondence between the carrier and / or cell and the user data information.

40. The apparatus according to claim 39, wherein, The correspondence between the carrier and / or cell and the user data information includes the correspondence between the carrier and / or cell and the logical channel.

41. The apparatus according to claim 40, wherein, The correspondence between the carrier and / or cell and the logical channel includes at least one of the following: One or more carriers applicable to one logical channel; One or more cells applicable to one logical channel; One or more logical channels corresponding to one carrier; One or more logical channels corresponding to one cell.

42. The device according to claim 40 or 41, wherein, The receiving unit is further configured to receive second indication information, where the second indication information is used to indicate at least one of the carrier, cell, and BWP to which the resource belongs; The device further includes: a processing unit, configured to select a logical channel according to at least one of the carrier, cell, and BWP to which the resource belongs to generate a MAC-PDU.

43. The apparatus according to claim 35, wherein, The correspondence between the BWP and the time domain information includes the correspondence between the BWP and the timing advance information.

44. The apparatus according to claim 43, wherein, The correspondence between the BWP and the timing advance information includes the correspondence between the BWP and the timing advance group identifier TAG ID.

45. The apparatus according to claim 44, wherein, The correspondence between the BWP and the TAG ID includes at least one of the following: The TAG ID to which the BWP belongs; The BWP corresponding to the specific TAG ID.

46. The device according to claim 44 or 45, wherein, The receiving unit is further configured to receive a first timing advance adjustment command, and the first timing advance adjustment command is used to indicate a target TAG ID; The device further includes: a processing unit, configured to apply the first timing advance adjustment command to each BWP corresponding to the target TAG ID, so as to synchronously adjust the uplink timing advance of each BWP corresponding to the target TAG ID.

47. The apparatus according to any one of claims 35, 43 to 45, wherein, The configuration information is further used to configure the correspondence between a carrier and / or a cell and timing advance information.

48. The apparatus according to claim 47, wherein, The correspondence between the carrier and / or the cell and the timing advance information includes the correspondence between the carrier and / or the cell and the TAG ID.

49. The device according to claim 48, wherein, The correspondence between the carrier and / or the cell and the TAG ID includes at least one of the following: The TAG ID to which the carrier belongs; The TAG ID to which the cell belongs; The carrier corresponding to the specific TAG ID; The cell corresponding to the specific TAG ID.

50. The apparatus according to claim 49, wherein, The receiving unit is further configured to receive a second timing advance adjustment command, and the second timing advance adjustment command is used to indicate a target TAG ID; the device further includes: a processing unit, configured to apply the second timing advance adjustment command to at least one of each carrier, each cell, each BWP in each carrier, and each BWP in each cell corresponding to the target TAG ID, so as to synchronously adjust the uplink timing advance of at least one of each carrier, each cell, each BWP in each carrier, and each BWP in each cell corresponding to the target TAG ID.

51. The device according to claim 46 or 50, wherein, The processing unit is further configured to, when a first timer of the target TAG expires, if the first timer is associated with a secondary timing advance group STAG, perform at least one of the following for all serving cells, carriers, or BWPs belonging to the target TAG: Empty the hybrid automatic repeat request HARQ buffer; If a physical uplink control channel PUCCH is configured, notify the radio resource control RRC layer to release the PUCCH; If a sounding reference signal SRS is configured, notify the RRC layer to release the SRS; Clear the configured downlink resource allocation and the configured uplink resource grant; Clear the physical uplink shared channel PUSCH resources for semi-persistent channel state information CSI reporting; Maintain the timing advance N of the target TAG TA .

52. A second communication device, including: A processing unit, configured to configure the correspondence between a BWP and user data information and / or time domain information.

53. The device according to claim 52, wherein, The device further includes: A sending unit, configured to send configuration information, and the configuration information is used to configure the correspondence between the BWP and user data information and / or time domain information.

54. The apparatus according to claim 53, wherein, The correspondence between the BWP and the user data information includes the correspondence between the BWP and the logical channel.

55. The apparatus according to claim 54, wherein, The correspondence between the BWP and the logical channel includes at least one of the following: Multiple BWPs applicable to one logical channel; Multiple logical channels corresponding to one BWP.

56. The device according to claim 54 or 55, wherein, The sending unit is further configured to send first indication information, and the first indication information is used to indicate the BWP to which the resource belongs.

57. The device according to any one of claims 53 to 55, wherein The configuration information is further used to configure the correspondence between carriers and / or cells and user data information.

58. The apparatus according to claim 57, wherein, The correspondence between carriers and / or cells and user data information includes the correspondence between carriers and / or cells and logical channels.

59. The device according to claim 58, wherein, The correspondence between carriers and / or cells and logical channels includes at least one of the following: One or more carriers applicable to one logical channel; One or more cells applicable to one logical channel; One or more logical channels corresponding to one carrier; One or more logical channels corresponding to one cell.

60. The apparatus according to claim 58 or 59, wherein, The device further includes: A sending unit, configured to send second indication information by the device, where the second indication information is used to indicate at least one of a carrier, a cell, and a BWP to which a resource belongs.

61. The apparatus according to claim 53, wherein, The correspondence between the BWP and time domain information includes the correspondence between the BWP and timing advance information.

62. The device according to claim 61, wherein, The correspondence between the BWP and timing advance information includes the correspondence between the BWP and a timing advance group identifier (TAG ID).

63. The apparatus according to claim 62, wherein, The correspondence between the BWP and the TAG ID includes at least one of the following: The TAG ID to which the BWP belongs; The BWP corresponding to a specific TAG ID.

64. The apparatus according to claim 62 or 63, wherein, The sending unit is further configured to send a first timing advance adjustment command, where the first timing advance adjustment command is used to indicate a target TAG ID, and the target TAG ID corresponds to each BWP.

65. The apparatus according to any one of claims 53, 61 to 63, wherein, The configuration information is further used to configure the correspondence between carriers and / or cells and timing advance information.

66. The apparatus according to claim 65, wherein, The correspondence between carriers and / or cells and timing advance information includes the correspondence between carriers and / or cells and TAG ID.

67. The apparatus according to claim 66, wherein, The correspondence between carriers and / or cells and TAG ID includes at least one of the following: The TAG ID to which the carrier belongs; The TAG ID to which the cell belongs; The carrier corresponding to a specific TAG ID; The cell corresponding to a specific TAG ID.

68. The apparatus according to claim 67, wherein, The sending unit is further configured to send a second timing advance adjustment command, where the second timing advance adjustment command is used to indicate a target TAG ID, and the target TAG ID corresponds to at least one of each carrier, each cell, a BWP in each carrier, and a BWP in each cell.

69. A communication device, comprising: A transceiver, a processor, and a memory, where the memory is configured to store a computer program, the transceiver is configured to communicate with other devices, and the processor is configured to call and run the computer program stored in the memory, so that the communication device executes the method according to any one of claims 1 to 34.

70. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 34.

71. A computer-readable storage medium, configured to store a computer program, where when the computer program is run by a device, the device executes the method according to any one of claims 1 to 34.

72. A computer program product, including computer program instructions, where the computer program instructions cause a computer to execute the method according to any one of claims 1 to 34.

73. A computer program that causes a computer to execute the method according to any one of claims 1 to 34.

74. A communication system comprising: a first communication device configured to execute the method according to any one of claims 1 to 17; a second communication device configured to execute the method according to any one of claims 18 to 34.

Images