CN116249204A

CN116249204A - Communication method and device

Info

Publication number: CN116249204A
Application number: CN202111472365.0A
Authority: CN
Inventors: 雷珍珠
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2023-06-09
Also published as: WO2023103907A1

Abstract

A communication method and device relate to the technical field of communication, and the method comprises the following steps: the terminal equipment receives first resource indication information from first network equipment, wherein the first resource indication information is used for indicating N first resources, and N is a positive integer greater than or equal to 2; the terminal equipment receives second resource indication information from second network equipment, wherein the second resource indication information is used for indicating second resources; the terminal device performs uplink communication with the first network device on at least one first resource of the N first resources, and performs uplink communication with the second network device on a second resource, wherein the second resource and the at least one first resource are not overlapped in time domain. According to the technical scheme, under the scene of larger TA phase difference change in the communication introducing double connection, intermodulation interference between uplink communication and downlink communication is reduced, and the success rate of the communication is improved to a certain extent.

Description

Communication method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

In wireless communication, in order to increase the system capacity and enhance the network coverage, dual connectivity (Dual Connectivity, DC) is introduced so that the terminal device can communicate with both network devices simultaneously. For example, the terminal device may communicate with the network device 1 and the network device 2 simultaneously, thereby realizing dual connectivity. One of the network device 1 and the network device 2 is a main network device of the terminal device, and the other is an auxiliary network device of the terminal device.

Taking the resource used by the terminal device and the network device 1 for uplink communication as the resource 1, the resource used by the terminal device and the network device 2 for uplink communication as the resource 2 as an example. If the frequency band of the resource 1 is different from the frequency band of the resource 2, if the terminal device performs uplink communication with the network device 1 and the network device 2 at the same time, a signal sent by the terminal device to the network device 1 on the resource 1 and a signal sent by the terminal device to the network device 2 on the resource 2 may interact to generate a new signal. When the frequency of the new signal falls on the frequency band where the resources used by the terminal device and the

network device

1 or 2 for downlink communication are located, interference is caused to the downlink communication of the terminal device, that is, intermodulation interference between the uplink communication and the downlink communication is caused. In the prior art, in order to solve this problem, a Time-division multiplexing (Time-Division Multiplexing, TDM) configuration is introduced, avoiding that the terminal device performs uplink communication on resource 1 and resource 2 simultaneously.

However, this approach is only applicable to a scenario where the Timing Advance (TA) between the terminal device and the network device 1 and the TA between the terminal device and the network device 2 have little variation in the communication process, and is not applicable to a scenario where the TA between the terminal device and the network device 1 and the TA between the terminal device and the network device 2 have large variation in the phase difference, such as Non-terrestrial network (Non-Terrestrial Networks, NTN) communication.

Disclosure of Invention

The application provides a communication method and a communication device, which are beneficial to reducing intermodulation interference between uplink communication and downlink communication under the scene of larger TA phase difference change in communication introducing double connection, and improve the success rate of communication to a certain extent.

In a first aspect, an embodiment of the present application provides a communication method, including:

the terminal equipment receives first resource indication information from first network equipment, wherein the first resource indication information is used for indicating N first resources, and N is a positive integer greater than or equal to 2;

the terminal equipment receives second resource indication information from second network equipment, wherein the second resource indication information is used for indicating second resources;

the terminal device performs uplink communication with the first network device on at least one first resource of the N first resources, and performs uplink communication with the second network device on a second resource, wherein the second resource and the at least one first resource are not overlapped in time domain. In the embodiment of the present invention, under the condition that the terminal device is connected to the first network device and the second network device, the first network device may configure a plurality of first resources for the terminal device, so that the terminal device may combine with the TA between the first network device and the second network device, and select the first resources that do not overlap or conflict with the second resources to perform uplink communication, thereby helping to reduce the probability of generating intermodulation interference when the terminal device performs uplink communication with the first network device and the second network device at the same time, and further helping to improve the communication performance.

In one possible implementation manner, the method further includes:

if the N first resources overlap with the second resources in the time domain, the terminal device does not perform uplink communication with the first network device on the N first resources or performs uplink communication with the second network device on the second resources. Thus, intermodulation interference between the uplink communication and the downlink communication can be further reduced.

In one of the possible implementations of this method,

the first resource indication information is used for indicating N first resources, and includes:

the first resource indication information includes resource indication information for indicating one of the N first resources and offset indication information for indicating an offset between two first resources adjacent in a time domain among the N first resources. So that the signaling overhead can be reduced.

In one of the possible implementations of this method,

the resource indication information is used for indicating one first resource in the N first resources, and comprises the following steps:

the resource indication information is used for indicating a first resource located at a starting position in a time domain in the N first resources.

In one of the possible implementations of this method,

the offset indication information is used for indicating an offset between two adjacent first resources in a time domain in the N first resources, and includes:

The offset indication information is used for indicating a first value, wherein the first value is an offset between two first resources adjacent in time domain in the N first resources. So that the signaling overhead can be reduced.

In one possible implementation manner, N is predefined, or N is indicated to the terminal device by the first network device;

wherein N is a positive integer greater than 2. So that the signaling overhead can be reduced.

In one of the possible implementations of this method,

the offset indication information is used for indicating N-1 offset values, the ith offset value in the N-1 offset values is the offset between the ith first resource and the (i+1) th first resource in the N first resources, i is more than or equal to 1 and less than or equal to N-1, and i is a positive integer. So that the signaling overhead can be reduced.

In one possible implementation manner, the first network device is an auxiliary network device of the terminal device, and the second network device is a main network device of the terminal device.

In a second aspect, embodiments of the present application further provide a communication method, including:

the first network equipment generates first resource indication information, wherein the first resource indication information is used for indicating N first resources, and N is a positive integer greater than or equal to 2;

The first network device sends the first resource indication information to the terminal device, so that the terminal device can perform uplink communication with the second network device while performing uplink communication with the first network device on at least one first resource in the N first resources.

In one possible implementation, the uplink communication with the second network device includes:

and carrying out uplink communication with the second network equipment on the second resource, wherein the first resource and the second resource are not overlapped.

In one possible implementation manner, the method further includes:

if the N first resources overlap with the second resources in the time domain, the first network device does not perform uplink communication with the terminal device on the N first resources, or performs uplink communication with the terminal device on at least one first resource of the N first resources, so that the terminal device does not perform uplink communication with the second network device on the second resources.

In one possible implementation manner, the method further includes:

the first network device performs blind detection on the N first resources.

In one of the possible implementations of this method,

the first resource indication information includes resource indication information for indicating one first resource of the N first resources and offset indication information for indicating an offset between two adjacent first resources in a time domain of the N first resources.

In one of the possible implementations of this method,

the offset indication information is used for indicating a first value, wherein the first value is an offset between two first resources adjacent in time domain in the N first resources.

In one possible implementation manner, N is predefined, or the first network device indicates the N to the terminal device;

wherein N is a positive integer greater than 2.

In one of the possible implementations of this method,

the offset indication information is used for indicating N-1 offset values, the ith offset value in the N-1 offset values is the offset between the ith first resource and the (i+1) th first resource in the N first resources, i is more than or equal to 1 and less than or equal to N-1, and i is a positive integer.

In a third aspect, an embodiment of the present application provides a communication apparatus, including: a processor and a memory for storing a computer program; the processor is configured to execute a computer program for performing the method as described in the first aspect.

In a fourth aspect, embodiments of the present application further provide a communication apparatus, including: a processor and a memory for storing a computer program; the processor is configured to run a computer program to perform the method as described in the second aspect.

In a fifth aspect, embodiments of the present application provide a computer readable storage medium having a computer program stored therein, which when run on a computer, implements the method according to the first to second aspects.

In a sixth aspect, embodiments of the present application provide a computer program product comprising a computer program for implementing a method according to the first or to the second aspect when the computer program is executed by a computer.

In a possible implementation manner, the program in the sixth aspect may be stored in whole or in part on a storage medium packaged together with the processor, or may be stored in part or in whole on a memory not packaged together with the processor.

Drawings

Fig. 1 is a schematic structural diagram of a radio frame according to an embodiment of the present application;

fig. 2 is a schematic diagram of a TA according to an embodiment of the present application;

fig. 3 is a schematic diagram of uplink resources in a dual-connection scenario of ground communication according to an embodiment of the present application;

fig. 4 is a schematic diagram of uplink resources in a dual-connection scenario of non-terrestrial communication according to an embodiment of the present disclosure;

fig. 5A is a schematic architecture diagram of an embodiment of an application scenario provided in the present application;

fig. 5B is a schematic architecture diagram of another embodiment of an application scenario provided in the present application;

fig. 5C is a schematic architecture diagram of still another embodiment of an application scenario provided in the present application;

fig. 6 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 7 is an uplink resource overlapping schematic diagram provided in the embodiment of the present application;

fig. 8 is a schematic diagram of an uplink resource location provided in an embodiment of the present application;

FIG. 9A is a schematic diagram illustrating one embodiment of an offset indication provided herein;

FIG. 9B is a schematic diagram illustrating one embodiment of an offset indication provided herein;

FIG. 10 is a schematic diagram illustrating one embodiment of a first resource indication scheme provided herein;

FIG. 11 is a schematic diagram illustrating another embodiment of a first resource indication scheme provided in the present application;

FIG. 12 is a schematic diagram illustrating the structure of an embodiment of a communication device provided herein;

fig. 13 is a schematic structural diagram of another embodiment of a communication device provided in the present application;

fig. 14 is a schematic structural diagram of a further embodiment of a communication device provided in the present application.

Detailed Description

In the embodiment of the present application, unless otherwise specified, the character "/" indicates that the front-rear association object is one or a relationship. For example, A/B may represent A or B. "and/or" describes an association relationship of an association object, meaning that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone.

It should be noted that the terms "first," "second," and the like in the embodiments of the present application are used for distinguishing between description and not necessarily for indicating or implying a relative importance or number of features or characteristics that are indicated, nor does it imply a sequential order.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. Furthermore, "at least one item(s)" below, or the like, refers to any combination of these items, and may include any combination of single item(s) or plural items(s). For example, at least one (one) of A, B or C may represent: a, B, C, a and B, a and C, B and C, or A, B and C. Wherein each of A, B, C may itself be an element or a collection comprising one or more elements.

In this application embodiments, "exemplary," "in some embodiments," "in another embodiment," etc. are used to indicate an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term use of an example is intended to present concepts in a concrete fashion.

"of", "corresponding" and "corresponding" in the embodiments of the present application may be sometimes used in combination, and it should be noted that the meaning to be expressed is consistent when the distinction is not emphasized. In the embodiments of the present application, communications and transmissions may sometimes be mixed, and it should be noted that, when the distinction is not emphasized, the meaning expressed is consistent. For example, a transmission may include sending and/or receiving, either nouns or verbs.

The equal to that relates to in this application embodiment can be with being greater than even using, is applicable to the technical scheme that adopts when being greater than, also can be with being less than even using, is applicable to the technical scheme that adopts when being less than. It should be noted that when the number is equal to or greater than the sum, the number cannot be smaller than the sum; when the value is equal to or smaller than that used together, the value is not larger than that used together.

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

1. And a terminal device. In this embodiment of the present application, the terminal device is a device with a wireless transceiver function, and may be referred to as a terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The terminal device may be fixed or mobile. It should be noted that the terminal device may support at least one wireless communication technology, such as LTE, new Radio (NR), wideband code division multiple access (wideband code divisionmultiple access, WCDMA), etc. For example, the terminal device may be a mobile phone, a tablet, a desktop, a notebook, a kiosk, a car-mounted terminal, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in an industrial control (industrial control), a wireless terminal in a self-driving (self-driving), a wireless terminal in a teleoperation (remote medical surgery), a wireless terminal in a smart grid, a wireless terminal in a transportation security (transportation safety), a wireless terminal in a smart city, a wireless terminal in a smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal in a future mobile communication network, or a public land mobile network (public land mobile network) in a future mobile communication network, etc. In some embodiments of the present application, the terminal device may also be a device with a transceiver function, such as a chip system. The chip system may include a chip and may also include other discrete devices.

2. A network device. The network device in the embodiment of the present application is a device that provides a wireless communication function for a terminal device, and may also be referred to as an access network device, a radio access network (radio access network, RAN) device, or the like. Wherein the network device may support at least one wireless communication technology, such as LTE, NR, WCDMA, etc. By way of example, network devices include, but are not limited to: next generation base stations (gnbs), evolved node bs (enbs), radio network controllers (radio network controller, RNCs), node bs (node bs, NB), base station controllers (base station controller, BSC), base transceiver stations (base transceiver station, BTS), home base stations (e.g., home evolved node B, or home node B, HNB), baseband units (BBUs), transceiving points (transmitting and receiving point, TRPs), transmitting points (transmitting point, TP), mobile switching centers, and the like in a fifth generation mobile communication system (5 th-generation, 5G). The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in the cloud wireless access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a terminal device, a wearable device, and a network device in future mobile communication or a network device in a future evolved PLMN, etc. In some embodiments, the network device may also be an apparatus, such as a system-on-a-chip, having functionality for providing wireless communication for the terminal device. By way of example, the chip system may include a chip, and may also include other discrete devices.

Take a network device as an example of a base station. For ease of description, a base station in NR (e.g., gNB) is referred to as an NR base station, and a base station in LTE (e.g., eNB) is referred to as an LTE base station.

3. And (5) uplink communication. In this embodiment of the present application, uplink communication may be referred to as uplink transmission, which refers to a process in which in communication between a terminal device and a network device, the terminal device sends a signal to the network device. The signal sent by the terminal device to the network device may be referred to as an uplink signal or uplink information. The uplink signal includes uplink control information (uplink control information, UCI) and/or uplink data, for example. The uplink control information is used to carry relevant information fed back by the terminal device, such as channel state information (channel state information, CSI), acknowledgement (ACK)/negative acknowledgement (negative acknowledge, NACK), and the like. Specifically, the uplink control information may be carried on a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical upnlink shared channel, PUSCH), and the uplink data may be carried on the physical uplink shared channel.

4. And (5) downlink communication. In this embodiment of the present application, the downlink communication may also be referred to as downlink transmission, which refers to a process in which, in communication between a terminal device and a network device, the terminal device receives a signal sent by the network device. The signal sent by the terminal device to receive the network device may be referred to as a downlink signal or downlink information. For example, the downlink signal may include downlink control information (downlink control information, DCI) and/or downlink data (downlink data). The downlink control information is information related to downlink data scheduling, such as resource allocation of a data channel and modulation and coding scheme. Specifically, the downlink control information may be carried on a physical downlink control channel (physical downlink control channel, PDCCH), and the downlink data may be carried on a physical downlink shared channel (physical downlink shared channel, PDSCH).

5. Time units. In this embodiment, the time unit refers to a section of time domain resource. Wherein, a time unit in an embodiment of the present application may include one or more basic time units. In particular, the communication between the terminal device and the network device is in units of basic time units or granularity in the time domain. In other words, in the time domain, communication is performed between the terminal device and the network device with the basic time unit as granularity or unit. By way of example, the basic time unit may be a radio frame (radio frame), a subframe (subframe), a slot (slot), a micro slot (micro slot), a mini slot (mini-slot), a symbol, or the like. For example, a base time unit is a subframe, and a time unit may include one or more subframes. As another example, a base time unit is a time slot and a time unit may include one or more time slots.

In the different communication systems, the granularity of communication between the terminal device and the network device in the time domain may be different or the same. In other words, the basic time units in different communication systems may be different or the same. For example, in NR, communication is performed between a terminal device and a network device at a granularity of time slots, that is, in NR, a basic time unit is a time slot. For another example, in LTE, communication is performed between the terminal device and the network device at the granularity of subframes, that is, in LTE, the basic time unit is a subframe.

In some embodiments, one radio frame may be 10 milliseconds (ms). One radio frame may include one or more subframes. One subframe has a duration of 1ms, and one radio frame may include 10 subframes. One subframe may include one or more slots. Wherein the duration of one slot is related to the size of the subcarrier spacing. I.e. the time duration of the time slots corresponding to the subcarrier spacings of different sizes are different. For example, the subcarrier spacing is 15KHz and the duration of one slot is 1ms; the subcarrier spacing is 30KHz and the duration of one slot is 0.5ms. In the embodiment of the application, one time slot may include one or more symbols. For example, under a normal cyclic prefix (normal cyclic prefix), one slot may include 14 symbols; under the extended cyclic prefix (extended cyclic prefix), one slot may include 12 symbols. It should be appreciated that in embodiments of the present application, the symbols may also be referred to as time domain symbols. For example, the symbol may be an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, or an orthogonal frequency division multiplexing (discrete fourier transform spread orthogonal frequency division multiplexing, DFT-s-OFDM) symbol based on discrete fourier transform spreading, or the like. The minislots (or mini-slots) in embodiments of the present application may be smaller units than slots, and one minislot may include one or more symbols. For example, a minislot (or mini-slot) may include 2 symbols, 4 symbols, 7 symbols, etc. One subframe may include one or more minislots. One slot may include one or more minislots (or mini-slots).

Take the example of a subcarrier spacing of 15 KHz. Fig. 1 is a schematic diagram of a radio frame according to an embodiment of the present application. As shown, the radio frame has a duration of 10ms and includes 10 slots, slot 0, slot 1, slot 2, slot 3, slot 4, slot 5, slot 6, slot 7, slot 8, and slot 9, respectively. Each slot has a duration of 1ms. Each slot includes 14 symbols. For example, mini slot 1 may include symbol 0, symbol 1, symbol 2, and symbol 3. As another example, mini slot 2 may include symbol 2 and symbol 3. As another example, mini-slot 3 includes symbol 7, symbol 8, symbol 9, symbol 10, symbol 11, and symbol 12.

For convenience of description, a basic time unit for uplink communication is referred to as an uplink basic time unit, and a basic time unit for downlink communication is referred to as a downlink basic time unit. For example, a basic time unit is a subframe, an uplink basic time unit may be referred to as an uplink subframe, and a downlink basic time unit may be referred to as a downlink subframe. For another example, the basic time unit is a time slot, the uplink basic time unit may be referred to as an uplink time slot, and the downlink basic time unit may be referred to as a downlink time slot.

6. Timing Advance (TA). In this embodiment, the TA is used for uplink communication, and is a physical quantity of time required to send an uplink signal in advance, so that the uplink signal of the terminal device reaches the network device at a desired time, and time synchronization at the network device side is ensured. For the terminal device, the TA is essentially a negative offset between the starting boundary of the uplink basic time unit and the starting boundary of the downlink basic time unit. The uplink basic time unit and the downlink basic time unit are time domain resources configured by the network equipment for the terminal equipment. For example, as shown in fig. 2, the starting boundary of the uplink basic time unit is time T1, the starting boundary of the downlink basic time unit is time T2, and TA is the duration between T2 and T1.

In case the terminal device supports dual connectivity, the terminal device may communicate with both network devices simultaneously. One network device is a main network device of the terminal device, and the other network device is an auxiliary network device of the terminal device. It is understood that in the embodiments of the present application, the primary network device may be referred to as a primary node, and the secondary network device may be referred to as a secondary node.

For example, in the case where the primary network device is an LTE base station and the secondary network device is an NR base station, and accesses a 4G core network (Evolved Packet Core, EPC), the terminal device may communicate with the LTE base station and the NR base station at the same time, so as to implement dual connection between the 4G radio access network and the 5G NR. Such dual connectivity may be referred to as eNB and NR dual connectivity (eNB NR Dual Connectivity, EN-DC). Also for example, in the case where the primary network device is an NR base station and the secondary network device is an LTE base station, and accesses the 5G core network (5G Core Network,5GC), the terminal device may also communicate with the LTE base station and the NR base station at the same time, so as to implement dual connectivity between the 5G NR and 4G radio access networks. This dual connection may be referred to as an NR and eNB dual connection (NR eNB Dual Connectivity, NE-DC). For another example, when the primary network device is an LTE base station, the secondary network device is an NR base station, and the core network to which the LTE base station is connected is a 5G core network, the terminal device may communicate with the LTE base station and the NR base station at the same time, so as to implement dual connection between the 4G radio access network and the 5G NR under the 5G core network. Among other things, such an LTE base station interfacing with a 5G core network is also called NG-eNB, and thus such dual connectivity may be referred to as NG-eNB and NR dual connectivity (NG-eNB NR Dual Connectivity, NGEN-DC). It should be noted that, the terminal device may also communicate with two NR base stations at the same time, so as to implement dual connectivity of 5G NR and 5G NR. The foregoing is merely illustrative of different dual connectivity schemes, and the embodiments of the present application are not limited thereto.

Specifically, when the terminal device performs uplink communication with the main network device and the auxiliary network device at the same time, the resource used by the terminal device for performing uplink communication with the main network device is resource 1, and the resource used by the terminal device for performing uplink communication with the auxiliary network device is resource 2. If the uplink signal sent by the terminal device on the resource 1 and the uplink signal sent by the terminal device on the resource 2 can interact to generate a new signal. When the frequency of the new signal falls within the range of the frequency band of the resource used by the downlink communication of the terminal device, the uplink communication is easy to cause interference to the downlink communication, that is, intermodulation interference between the uplink communication and the downlink communication is generated. Particularly, for the partial frequency bands used for uplink communication in the EN-DC and the NE-DC, when the terminal equipment performs uplink communication with the main network equipment and the auxiliary network equipment at the same time, serious intermodulation interference can be generated, and the communication performance of the terminal equipment is affected.

Take EN-DC as an example. Considering the TA between the terminal device and the LTE base station and the TA between the terminal device and the NR base station in terrestrial communication, the difference between these two TAs is not large. Therefore, in some embodiments, TDM configuration may be introduced into the LTE base station, so that the LTE base station uses the TDM configuration, so that the terminal device does not simultaneously perform uplink communication with the LTE base station and the NR base station, thereby reducing the possibility of generating intermodulation interference and improving communication performance. For example, as shown in fig. 3, the frequency domain resource 1 configured by the LTE base station for the terminal device is located between the frequencies f11 to f12, and the frequency domain resource 2 configured by the NR base station for the terminal device is located between the frequencies f21 to f 22. Taking the example of 15KHz subcarrier spacing in NR. If the time domain resources configured by the LTE base station for the terminal device are subframe 1, subframe 3 and subframe 5 in the figure, and the time domain resources configured by the NR base station for the terminal device are slot 3 in the figure, the terminal device may communicate with the LTE base station and the NR base station at the same time. I.e. the terminal device may perform uplink communication on both frequency domain resource 1 and frequency domain resource 2. In this case, however, if the uplink signal transmitted on the frequency domain resource 1 and the uplink signal transmitted on the frequency domain resource 2 interact to generate a new signal, the frequency of the new signal falls within the frequency band of the resource used for downlink communication of the terminal device, which may cause intermodulation interference. Therefore, in order to avoid intermodulation interference, the LTE base station may not configure the time domain resources on the subframe 3 when configuring the time domain resources for the terminal device, for example, the LTE base station may configure the time domain resources configured for the terminal device on the subframe 1 and the subframe 5, thereby avoiding that the terminal device performs uplink communication on the frequency domain resources 1 and the frequency domain resources 2 at the same time. But this approach is only applicable to cases where the difference between TAs is small, such as terrestrial communications.

For dual connectivity in non-terrestrial communications, the difference between the TA between the terminal device and the primary network device and the TA between the terminal device and the secondary network device is large, especially in non-terrestrial communications the TA between the terminal device and the network devices (e.g. primary network device, secondary network device) is variable. Specifically, in non-terrestrial communication, the terminal device needs to report TA to the network device periodically, and the variation range of TA can reach 10ms in one reporting period. For example, a terminal device in non-terrestrial communication is connected to two NR base stations. As shown in fig. 4, the difference between the TA reported by the terminal device and the TA of the two NR base stations is about 2 timeslots, where one NR base station configures a time domain resource for the terminal device in the time domain as timeslot 1, and where another NR base station configures a time domain resource for the terminal device in the time domain as timeslot 3, as shown in the drawing, timeslot 1 and timeslot 3 overlap in the time domain, so that intermodulation interference may occur in this case. By adopting the TDM configuration mode, the NR base station as the primary network device does not overlap the time domain resource configured for the terminal with the time domain resource configured for the secondary network device in the time domain, for example, a time slot 5 (a hatched area shown in the figure) is configured for the terminal device, and the time slot 5 and the time slot 1 do not overlap in the time domain, so that intermodulation interference is not generated at this time. However, since the TA changes in a reporting period and the difference between the TA changes greatly after the TA changes, if the main network device still uses the TA reported in the period as a reference to configure resources for the terminal device, intermodulation interference may be caused. The way in which TDM is configured is no longer applicable. Therefore, the method has important practical value for reducing intermodulation interference in a double-connection scene in non-ground communication and improving communication performance.

In view of this, the embodiments of the present application provide a communication method, where, when a terminal device is connected to two or more network devices, a plurality of resources for uplink communications are configured for the terminal device in a time domain through an auxiliary network device, so that the terminal device may select, in combination with a resource case for uplink communications configured by a primary network device, from a plurality of resources for uplink communications configured by the auxiliary network device to communicate with the auxiliary network device, with an appropriate resource. In this embodiment, the appropriate resource refers to a resource that does not overlap or conflict with a resource configured by the primary network device in the time domain. Therefore, intermodulation interference between uplink communication and downlink communication in a double-connection scene in non-ground communication is reduced, and the communication performance is improved.

It should be noted that, when the TA between the terminal device and the primary network device is TA1 and the TA between the terminal device and the secondary network device is TA2, the appropriate resource does not overlap or conflict with the resource configured by the primary network device in the time domain, which means that the appropriate resource does not overlap or conflict with the resource configured by the primary network device after advancing by TA2 in the time domain.

The embodiment of the application can be applied to a dual-connection scene involving non-ground communication. For example, as shown in fig. 5A, a schematic diagram of an application scenario applicable to the embodiments of the present application is shown. As shown, the terminal device is connected to the primary network device through a satellite, and the terminal device is connected to the secondary network device through a satellite. For example, the primary network device and the secondary network device may both be NR base stations, or one may be an LTE base station, and the other may be an NR base station. The satellite used for connecting the terminal device and the main network device and the satellite used for connecting the terminal device and the auxiliary network device may be the same or different. In some embodiments, the primary network device may be deployed on the ground, and the satellite may be connected or in communication with the primary network device via a Gateway (Gateway). Similarly, the secondary network device is deployed on the ground, and the satellite and the secondary network device may be connected or in communication through a gateway. In other embodiments of the present application, the primary network device and/or the secondary network device may also be deployed on a satellite.

The main network device and the auxiliary network device can be connected with a core network, and the core network is connected with a data network. Taking the main network device as an NR base station, the core network as a 5G core network as an example. Communication is achieved between the terminal device and the main network device through a Uu port. Communication is realized between the main network equipment and the core network through an NG interface. For example, in the case where the secondary network device is an NR base station, communication is achieved between the primary network device and the secondary network device through an Xn port.

As another example, as shown in fig. 5B, a schematic diagram of another application scenario applicable to the embodiments of the present application is shown. As shown, the terminal device is connected to the main network device and communicates through the Uu port. The terminal device and the auxiliary network device are connected through a satellite, and communication is realized through a Uu interface. The auxiliary network device may be deployed on a satellite or on the ground, which is not limited in the embodiment of the present application. The main network device and the auxiliary network device are respectively connected with a core network, and the core network is connected with a data network.

As another example, as shown in fig. 5C, a schematic diagram of another application scenario applicable to the embodiments of the present application is shown. The difference from the application scenario shown in fig. 5B is that in fig. 5C, the terminal device is connected to the secondary network device, and communication is implemented through Uu port. The terminal device is connected with the main network device through a satellite, and communication is realized through a Uu interface.

It should be noted that in some embodiments of the present application, the primary network device is connected to the core network, and the secondary network device may not be connected to the core network. In this case, the secondary network device communicates with the core network via the primary network device.

It should be understood that the non-terrestrial communications referred to in fig. 5A, 5B, and 5C are satellite communications, and embodiments of the present application may also be applied to other non-terrestrial communications scenarios involving underwater communications, underground communications, and the like, which are not limited thereto.

The following describes in detail a communication method according to an embodiment of the present application, taking an example in which a secondary network device is a first network device and a primary network device is a second network device. Wherein at least one of the communication between the first network device and the terminal device and the communication between the second network device and the terminal device is a non-terrestrial communication.

Fig. 6 is a schematic flow chart of a communication method according to an embodiment of the present application, which specifically includes the following steps:

601. the first network device transmits first resource indication information. Correspondingly, the terminal equipment receives the first resource indication information. The first resource indication information is used for indicating at least two first resources. The following first resource indication information indicates N first resources, where N is a positive integer greater than or equal to 2.

In some embodiments, the first resource indication information is sent in case the terminal device is connected to the first network device and the second network device. The first resource indication information is generated by the first network device. That is, the first network device generates the first resource indication information and then transmits the first resource indication information. For example, the first network device may determine N first resources according to the TA reported by the terminal device and the service type of the terminal device, and then generate the first resource indication information. Of course, in the embodiment of the present application, N first resources may also be determined by other manners. Such as scheduling of cell users, embodiments of the present application are not limited in this regard.

In this embodiment of the present application, the first network device may send the first resource indication information to the terminal device while carrying the first resource indication information in downlink control information (Downlink Control Information, DCI). That is, the first network device transmits DCI including first resource indication information to the terminal device. The format of the DCI may be, for example, dci0_0, dci0_1, dci1_0 or dci1_1, which is not limited in the embodiment of the present application. For example, the first resource indication information may be carried by adding a Time domain resource assignment for singleTx field to the DCI. It should be noted that, in the embodiment of the present application, the first network device may also carry the first resource indication information through other information (such as newly defined information, etc.), and send the first resource indication information to the terminal device.

Specifically, in the embodiment of the present application, the first resource may be understood as a time domain resource for uplink communication, and may be a resource for PUSCH transmission or a resource for PUCCH transmission. Specifically, the resources used for PUSCH transmission may be referred to as resources used for uplink data transmission, abbreviated as PUSCH resources; the resources used for PUCCH transmission may be also referred to as resources used for uplink signaling (e.g., UCI) transmission, abbreviated as PUCCH resources.

For example, the first resource may include one or more base time units. Taking the first resource as a basic time unit as an example. The first resource indication information indicates N first resources, which can be understood as: the first resource indication information indicates N basic time units. As another example, the first resource may include one or more time units. Taking the first resource as an example of a time unit. The first resource indicates N first resources, which can be understood as: the first resource indication information indicates N time units. Note that, when the first resource indication information is carried in DCI, the DCI may also indicate a frequency domain resource or the like.

602. The second network device transmits second resource indication information. Correspondingly, the terminal equipment receives the second resource indication information. The second resource indication information is used for indicating the second resource.

In the embodiment of the present application, the second resource may also be understood as a time domain resource. For example, the second resource may include one or more base time units. Alternatively, the second resource may comprise one or more time units. In some embodiments, the second network device may also send the second resource indication information to the terminal device carried in DCI. That is, the second network device transmits DCI to the terminal device, the DCI including the second resource indication information.

603. The terminal device performs uplink communication with the second network device on the second resource, and performs uplink communication with the first network device on at least one first resource of the N first resources. That is, the second resource and the first resource are both resources for uplink communications.

Specifically, the terminal device may perform uplink communication on at least one first resource and at least one second resource at the same time. In some embodiments, after receiving the first resource indication information and the second resource indication information, the terminal device may determine, according to the first TA and the second TA, one first resource that does not overlap with the second resource from the N first resources, and then perform uplink communication with the first network device on the first resource. The first TA is a TA between the terminal equipment and the first network equipment, and the second TA is a TA between the terminal equipment and the second network equipment. In a specific implementation, if the terminal device and the first network device are in terrestrial communication, the first TA may be configured by the first network device; likewise, if there is a terrestrial communication between the terminal device and the second network device, the second TA may be configured by the second network device. Alternatively, if the terminal device and the first network device are non-terrestrial communications, the first TA may be determined by a first round trip delay between the terminal device and a satellite (e.g., satellite 1) and a first initial TA, e.g., first ta=first round trip delay+first initial TA. Wherein satellite 1 may be a satellite in communication with a terminal device, the first round trip delay being determined by the terminal device based on its relative position with satellite 1. The first initial TA may be an initial TA configured by the first network device to the terminal device. Likewise, if the terminal device is in non-terrestrial communication with the second network device, the second TA may be determined by a second round trip delay between the terminal device and the satellite (e.g., satellite 2) and a second initial TA, e.g., second ta=second round trip delay+second initial TA. Wherein the satellite 2 may be a satellite in communication with the terminal device, the second round trip delay being determined by the terminal device based on its relative position with the satellite 2. The second initial TA may be an initial TA configured by the second network device to the terminal device.

It should be understood that in the embodiment of the present application, the first resource does not overlap with the second resource, and it may be understood that the first resource does not collide with the second resource. Specifically, the first resource is not overlapped or not in conflict with the second resource after being advanced by the second TA in time domain after being advanced by the first TA in time domain.

For example, as shown in fig. 7, the first resource is obtained after the first TA is advanced in time domain, the second resource is obtained after the second TA is advanced in time domain, and the first resource 'and the second resource' are not overlapped or not in conflict. While the first resource and the second resource may or may not overlap partially or completely. Only the case where the first resource and the second resource partially overlap is shown in fig. 7.

In the case where neither the first TA nor the second TA is 0, the terminal device performs uplink communication with the first network device on the first resource, which is to be understood as that the terminal device performs uplink communication with the first network device based on or using the first resource, that is, the terminal device performs uplink communication with the first network device on a resource (i.e., the first resource') after the first TA is advanced in the time domain by the first resource. Similarly, the terminal device performs uplink communication on the second resource, that is, the terminal device performs uplink communication with the second network device based on or using the second resource. I.e. the terminal device is actually in upstream communication with the second network device on the second resource'.

The foregoing describes taking the terminal device selecting one first resource from the N first resources as an example, and in this embodiment of the present application, the terminal device may further select at least two first resources from the N first resources, and perform uplink communication with the first network device on the at least two first resources. Wherein the at least two first resources are each non-overlapping or non-conflicting with the second resource. For uplink communication with the first network device on at least two first resources, and for non-overlapping or non-conflicting with at least two first resources and second resources, reference may be made to a description of uplink communication with the first network device on one first resource, and for non-overlapping or non-conflicting with a first resource and a second resource, which will not be described in detail herein.

In the embodiment of the present invention, under the condition that the terminal device is connected to the first network device and the second network device, the first network device may configure a plurality of first resources for the terminal device, so that the terminal device may combine with the TA between the first network device and the second network device, and select the first resources that do not overlap or conflict with the second resources to perform uplink communication, thereby helping to reduce the probability of generating intermodulation interference when the terminal device performs uplink communication with the first network device and the second network device at the same time, and further helping to improve the communication performance.

In other embodiments of the present application, if the N first resources overlap with the second resource, the terminal device does not perform uplink communication with the first network device on any one of the N first resources. In this case, the terminal device may or may not perform uplink communication with the second network device on the second resource. Or if all the N first resources overlap with the second resource, the terminal device does not perform uplink communication with the second network device on the second resource. In this case, the terminal device communicates upstream with the first network device on at least one of the N first resources. For example, in the case that N first resources overlap or conflict with the second resources, the terminal device may discard uplink communication with the first network device or discard uplink communication with the second network device, which may be determined by the terminal device in combination with information importance, information priority, and/or information type. For example, information importance is taken as an example. The importance of the information reported by the terminal device to the first network device is higher, and the terminal device may forgo uplink communication with the second network device. As another example, in the case where N first resources overlap with the second resources, the terminal device may preferentially ensure uplink communication with the primary network device (i.e., the second network device), and directly discard uplink communication with the secondary network device (i.e., the first network device).

It should be noted that, N first resources overlap with the second resource, which can be understood as: each of the N first resources overlaps or conflicts with a second resource. I.e. any one of the N first resources partially overlaps or completely overlaps with the second resource. Under the condition that both the first TA and the second TA are not 0, the N first resources overlap with the second resources, which means that the N first resources are partially overlapped or completely overlapped after being advanced by the first TA in the time domain and being advanced by the second TA in the time domain. For the first TA and the second TA, reference may be made to the above related description, and the description is omitted here.

Further, in some embodiments, the first network device may perform blind detection on the N first resources to reduce the possibility of missed uplink signals. It should be noted that, whether the terminal device performs uplink communication on N first resources, the first network device performs blind detection on the N first resources. Of course, in other embodiments, the terminal device may also indicate the first resource used for uplink communication to the first network device, so that the first network device may receive the uplink signal on the first resource indicated by the terminal device, thereby helping to reduce the number of blind tests of the first network device.

In some embodiments of the present application, the first resource indication information may indicate N first resources by:

the first resource indication information includes resource indication information and offset indication information. The resource indication information is used for indicating one first resource in the N first resources, and the offset indication information is used for indicating the offset between two adjacent first resources in the time domain in the N first resources. Thereby helping to save signaling overhead.

For example, one of the N first resources indicated by the resource indication information may be any one of the N first resources. For example, one of the N first resources indicated by the resource indication information may be a first resource located at a start position in the time domain, or may be a first resource located at an end position, which is not limited. Taking the value of N as 3 as an example, as shown in fig. 8, N first resources are respectively a first resource 1, a first resource 2 and a first resource 3, where the first resource 1 is a first resource located at a start position in the N first resources, and the first resource 3 is a first resource located at an end position in the N first resources. The time interval between the first resource 1 and the second resource 2 may be the same or different from the time interval between the first resource 2 and the first resource 3, and is not limited thereto. The resource length of the first resource 1 may be the same as or different from the resource length of the first resource 2, and this is not limited to this.

In the case that one of the N first resources indicated by the resource indication information is a first resource located at a start position among the N first resources, the resource indication information is used to indicate a first resource located at the start position in a time domain among the N first resources, that is, the resource indication information is used to indicate a first resource among the N first resources.

Specifically, the resource indication information may indicate one first resource of the N first resources in the following manner:

mode 1: the resource indication information may indicate one first resource by indicating a starting time domain position of the first resource, a resource length of the first resource.

Mode 2: the resource indication information indicates one first resource by indicating a line number or index of the first resource in the resource allocation list. The resource allocation list includes a line number or index of the first resource, a starting time domain position of the first resource, and a resource length of the first resource, where the resource allocation list may be indicated to the terminal device by the first network device through a higher layer signaling (such as RRC signaling), or may be a default time domain resource allocation list.

The foregoing is merely an illustration of an implementation manner in which the resource indication information may indicate one first resource of the N first resources in the following manner, and is not limited to the embodiment of the present application, and the embodiment of the present application may also indicate one first resource in other manners.

In addition, in the case where N has a value of 2, the offset indication information may be used to indicate an offset value (offset), which is an offset between the two first resources. Taking the offset between two first resources as offset0 as an example, as shown in fig. 9A, the two first resources are a first resource 1 and a first resource 2, respectively, and the offset between the first resource 1 and the first resource 2 is the offset between the start time domain position of the first resource 1 and the start time domain position of the first resource 2. It should be understood that, in the embodiment of the present application, the offset between the first resource 1 and the first resource 2 may also be an offset between the end time domain position of the first resource 1 and the start time domain position of the first resource 2, as shown in fig. 9B, or may be an offset between the end time domain position of the first resource 1 and the end time domain position of the first resource 2, or an offset between the start time domain position of the first resource 1 and the end time domain position of the first resource 2, which is not limited in the present application.

Or the offset indication information is used for indicating an offset value, and can also be applied to a scene that the value of N is greater than 2, but the offsets between two adjacent first resources in the time domain in the N first resources are the same. Taking the value of N as 4 and the offset between the two first resources as the offset between the starting time domain positions of the two first resources as an example. As shown in fig. 10, the N first resources are a first resource 1, a first resource 2, a first resource 3, and a first resource 4, respectively. The resource length of the first resource 1, the resource length of the first resource 2, the resource length of the first resource 3, and the resource length of the first resource 4 may be partially the same, partially different, entirely different, or entirely the same, which is not limited thereto.

In the case where the value of N is greater than 2, in some embodiments, the value of N may be indicated to the terminal device by the first network device or by the master network device (i.e., the second network device). For example, the first network device indicates the value of N to the terminal device. For example, the first network device may indicate N to the terminal device through higher layer signaling (e.g., RRC signaling). Alternatively, the first network device may also indicate N to the terminal device through DCI. The N may be carried in the same DCI as the offset indication information and the resource indication information, or may be carried in different DCIs, which is not limited. The embodiment of the application does not limit the message carrying N. As another example, the value of N may be predefined. Illustratively, the value of N is predefined by the protocol. For example, the value of N is directly predefined by the protocol. For example, N is predefined to have a value of 3 by the protocol. As another example, the value of N is predefined by predefining N first resources, so that signaling overhead can be reduced. For example, N first resources are predefined to be located in one radio frame. For 5G NR, the duration of the basic time unit is related to the subcarrier spacing, and thus the value of N is different for different subcarrier spacing.

In other embodiments of the present application, the offset indication information may be used to indicate N-1 offset values, where the i-th offset value in the N-1 offset values is an offset between the i-th first resource and the i+1th first resource in the N first resources, 1+.i+.n-1, and i is a positive integer. The technical scheme can be applied to the scene that the offset between two adjacent first resources in the time domain in N first resources is different. The offsets between two adjacent first resources in the time domain in the N first resources may be all or partially different. For example, taking the value of N as 4 as an example, the offset indication information is used to indicate offset0, offset1, and offset2, respectively. Wherein, offset0 is the 1 st offset value indicated by the offset indication information, offset1 is the 2 nd offset value indicated by the offset indication information, and offset2 is the 3 rd offset value indicated by the offset indication information. The N first resources are a first resource 1, a first resource 2, a first resource 3, and a first resource 4, respectively, as shown in fig. 11. The first resource 1 is the 1 st first resource in the N first resources, the first resource 2 is the 2 nd first resource in the N first resources, the first resource 3 is the 3 rd first resource in the N first resources, and the first resource 4 is the 4 th first resource in the N first resources. Taking the offset between two adjacent first resources as the offset between the initial time domain positions of the two first resources as an example. offset0 is the offset between the start position of the first resource 1 and the start position of the first resource 2, offset1 is the offset between the start position of the first resource 2 and the start position of the first resource 3, and offset2 is the offset between the start position of the first resource 3 and the start position of the first resource 4.

In addition, in the embodiment of the application, the offset indication information may also be used to indicate an offset between the N-1 first resources and the kth first resource in the N first resources, respectively. The N-1 first resources are first resources except the kth first resource in the N first resources. The kth first resource may be a first resource located at a start position or an end position, or may be a first resource indicated by resource indication information, etc., which is not limited.

The foregoing is merely illustrative of a specific implementation manner in which the first resource indication information indicates N first resources, and the embodiment of the present application may also indicate N first resources by other manners, which is not limited thereto.

The above description is given taking the configuration of multiple resources by the auxiliary network device as an example, in this embodiment of the present application, multiple resources may also be configured by the main network device, and the auxiliary network device configures one resource, and a specific implementation may also refer to the description related to the communication method shown in fig. 6.

In addition, it may be understood that, in the embodiment of the present application, for the second network device, that is, the master network device, the second network device may also configure a plurality of second resources, where in a case where the second network device configures a plurality of second resources, the terminal device may first select one or more second resources from the plurality of second resources, and then select the first resource from the plurality of first resources configured by the first network device, to perform uplink communication.

It should be noted that the embodiments of the present application may also be extended to a scenario where a terminal device is connected to three or more network devices.

The above embodiments may be used alone or in combination with each other to achieve different technical effects.

In the embodiments provided in the present application, the communication method provided in the embodiments of the present application is described from the point of view that the network device and the terminal device are the execution subjects. In order to achieve the above-mentioned communication method provided in the embodiments of the present application. In order to implement the functions in the communication method provided in the embodiments of the present application, the terminal device and the network device may include hardware structures and/or software modules, and implement the functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Some of the functions described above are performed in a hardware configuration, a software module, or a combination of hardware and software modules, depending on the specific application of the solution and design constraints.

Fig. 12 is a schematic structural diagram of a communication device 1200 according to an embodiment of the present application, which may include: a receiving module 1210 and a communication module 1220;

a receiving module 1210, configured to receive, by a terminal device, first resource indication information from a first network device, where the first resource indication information is used to indicate N first resources, and N is a positive integer greater than or equal to 2; and receiving second resource indication information from the second network device, the second resource indication information being used to indicate a second resource;

The communication module 1220 is configured to perform uplink communication with the first network device on at least one first resource of the N first resources, and perform uplink communication with the second network device on a second resource, where the second resource and the at least one first resource do not overlap in a time domain.

In one possible implementation manner, the communication module 1220 is further configured to, if the N first resources overlap the second resources in the time domain, not perform uplink communication with the first network device on the N first resources, or not perform uplink communication with the second network device on the second resources.

In one possible implementation manner, the first resource indication information includes resource indication information and offset indication information, the resource indication information is used for indicating one first resource in the N first resources, and the offset indication information is used for indicating an offset between two adjacent first resources in a time domain in the N first resources.

In one possible implementation manner, the resource indication information is used to indicate a first resource located at a starting position in a time domain in the N first resources.

In one possible implementation manner, the offset indication information is used to indicate a first value, where the first value is an offset between two first resources adjacent in a time domain in the N first resources.

wherein N is a positive integer greater than 2.

In one possible implementation manner, the offset indication information is used for indicating N-1 offset values, an ith offset value in the N-1 offset values is an offset between an ith first resource in the N first resources and an ith+1th first resource, i is equal to or greater than 1 and equal to or less than N-1, and i is a positive integer.

In one possible implementation, the communication apparatus 1200 may be a chip or a terminal device.

Fig. 13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application, which may include: a generating module 1310 and a transmitting module 1320;

a generating module 1310, configured to generate first resource indication information by using a first network device, where the first resource indication information is used to indicate N first resources, and N is a positive integer greater than or equal to 2;

the sending module 1320 is configured to send, by the first network device, the first resource indication information to the terminal device, so that the terminal device can perform uplink communication with the first network device and simultaneously perform uplink communication with the second network device on at least one first resource of the N first resources.

In one possible implementation, the sending module 1320 may be further configured to enable the terminal device to perform uplink communications with the second network device on the second resource, where the first resource and the second resource do not overlap.

In one possible implementation, the communications apparatus 1300 can further include:

and the communication module 1330 is configured to, if the N first resources overlap the second resources in the time domain, cause the first network device to not perform uplink communication with the terminal device on the N first resources, or cause the terminal device to not perform uplink communication with the second network device on the second resources while performing uplink communication with the terminal device on at least one first resource of the N first resources.

the detecting module 1340 is configured to perform blind detection on N first resources by the first network device.

In one possible implementation manner, N is predefined, or the first network device indicates N to the terminal device;

wherein N is a positive integer greater than 2.

In one possible implementation, the communications apparatus 1300 can be a chip or a network device.

Fig. 14 is a schematic structural diagram of a communication device 1400 according to an embodiment of the present application, where the communication device 1400 may include: at least one processor; and at least one memory communicatively coupled to the processor. The communication apparatus 1400 may be a network device or a terminal device. The memory stores program instructions executable by the processor, and if the communication apparatus 1400 is a network device, the processor invokes the program instructions to perform actions performed by the network device in the communication method provided in the embodiment of the present application, and if the communication apparatus 1400 is a terminal device, the processor invokes the program instructions to perform actions performed by the terminal device in the communication method provided in the embodiment of the present application.

As shown in fig. 14, the communication apparatus 1400 is embodied in the form of a general purpose computing device. The components of communication device 1400 may include, but are not limited to: one or more processors 1410, a memory 1420, a communication bus 1440 and a communication interface 1430 that connect the different system components (including memory 1420 and processor 1410).

Communication bus 1440 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.

Communication device 1400 typically includes a variety of computer system-readable media. Such media can be any available media that is accessible by communication device 1400 and includes both volatile and nonvolatile media, removable and non-removable media.

Memory 1420 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter: RAM) and/or cache memory. Communication device 1400 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. Although not shown in fig. 7, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to communication bus 1440 through one or more data medium interfaces. Memory 1420 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the embodiments of the present application.

A program/utility having a set (at least one) of program modules may be stored in the memory 1420, including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules generally perform the functions and/or methods in the embodiments described herein.

The communications apparatus 1400 can also communicate with one or more external devices (e.g., keyboard, pointing device, display, etc.), one or more devices that enable a user to interact with the communications apparatus 1400, and/or any device (e.g., network card, modem, etc.) that enables the communications apparatus 1400 to communicate with one or more other computing devices. Such communication may occur through communication interface 1430. Also, the communication apparatus 1400 may communicate with one or more networks (e.g., local area network (Local Area Network; hereinafter: LAN), wide area network (Wide Area Network; hereinafter: WAN) and/or public network(s), such as the Internet) via a network adapter (not shown in FIG. 14) that may communicate with other modules of the electronic device via a communication bus 1440. It should be appreciated that although not shown in fig. 14, other hardware and/or software modules may be used in connection with the communication device 1400, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Redundant Arrays of Independent Drives; hereinafter RAID) systems, tape drives, data backup storage systems, and the like.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

The functional units in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or a part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: flash memory, removable hard disk, read-only memory, random access memory, magnetic or optical disk, and the like.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, the method comprising:

the method comprises the steps that terminal equipment receives first resource indication information from first network equipment, wherein the first resource indication information is used for indicating N first resources, and N is a positive integer greater than or equal to 2;

the terminal device performs uplink communication with the first network device on at least one first resource of the N first resources, performs uplink communication with the second network device on the second resource, and the second resource and the at least one first resource do not overlap in time domain.

2. The method according to claim 1, wherein the method further comprises:

if the N first resources overlap with the second resources in the time domain, the terminal device does not perform uplink communication with the first network device on the N first resources or does not perform uplink communication with the second network device on the second resources.

3. The method according to claim 1 or 2, wherein the first resource indication information is used to indicate N first resources, including:

4. A method according to claim 3, wherein the resource indication information is used to indicate one of the N first resources, comprising:

5. The method according to claim 3 or 4, wherein the offset indication information is used to indicate an offset between two first resources adjacent in a time domain among the N first resources, including:

the offset indication information is used for indicating a first value, and the first value is an offset between two adjacent first resources in the time domain in the N first resources.

6. The method of claim 5, wherein the N is predefined or the N is indicated to the terminal device by the first network device;

wherein N is a positive integer greater than 2.

7. The method according to claim 3 or 4, wherein the offset indication information is used to indicate an offset between two first resources adjacent in a time domain among the N first resources, including:

8. The method according to any of claims 1-7, wherein the first network device is a secondary network device of the terminal device and the second network device is a primary network device of the terminal device.

9. A method of communication, the method comprising:

the method comprises the steps that first network equipment generates first resource indication information, wherein the first resource indication information is used for indicating N first resources, and N is a positive integer greater than or equal to 2;

10. The method of claim 9, wherein the upstream communication with the second network device comprises:

and carrying out uplink communication with the second network equipment on a second resource, wherein the first resource and the second resource are not overlapped.

11. The method according to claim 10, wherein the method further comprises:

if the N first resources overlap with the second resource in the time domain, the first network device does not perform uplink communication with the terminal device on the N first resources, or performs uplink communication with the terminal device on at least one first resource of the N first resources, so that the terminal device does not perform uplink communication with the second network device on the second resource.

12. The method according to any one of claims 9-11, further comprising:

The first network device performs blind detection on the N first resources.

13. The method according to any one of claims 9-12, wherein the first resource indication information is used to indicate N first resources, including:

the first resource indication information comprises resource indication information and offset indication information, wherein the resource indication information is used for indicating one first resource in the N first resources, and the offset indication information is used for indicating offset between two adjacent first resources in the time domain in the N first resources.

14. The method of claim 13, wherein the resource indication information is used to indicate one of the N first resources, comprising:

15. The method according to claim 13 or 14, wherein the offset indication information is used to indicate an offset between two first resources adjacent in the time domain among the N first resources, including:

16. The method according to claim 15, wherein the N is predefined or the first network device indicates the N to the terminal device;

wherein N is a positive integer greater than 2.

17. The method according to claim 13 or 14, wherein the offset indication information is used to indicate an offset between two first resources adjacent in the time domain among the N first resources, including:

18. The method according to any of claims 9-17, wherein the first network device is a secondary network device of the terminal device and the second network device is a primary network device of the terminal device.

19. A communication device, comprising: a processor and a memory for storing a computer program; the processor is configured to execute the computer program to perform the communication method according to any of claims 1-8.

20. The communication apparatus according to claim 19, wherein the communication apparatus is a chip or the communication apparatus is a terminal device.

21. A communication device, comprising: a processor and a memory for storing a computer program; the processor being configured to execute the computer program to perform the communication method according to any of claims 9-18.

22. The communication apparatus according to claim 21, wherein the communication apparatus is a chip or the communication apparatus is a network device.

23. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when run on a computer, implements the method according to any one of claims 1-8 or the method according to any one of claims 9-18.