CN110740022A

CN110740022A - data transmission method and device

Info

Publication number: CN110740022A
Application number: CN201810805807.0A
Authority: CN
Inventors: 李晓翠; 薛祎凡; 王键
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-07-20
Filing date: 2018-07-20
Publication date: 2020-01-31
Anticipated expiration: 2038-07-20
Also published as: WO2020015715A1; CN110740022B

Abstract

The embodiment of the application provides data sending methods and apparatuses, which relate to the technical field of communication and are used for solving the problem that the number of sending ports capable of being used for sending uplink data is not matched with the number of nearest sent SRS resource ports in the prior art, the method includes that a terminal acquires indication information, the 0 indication information is used for indicating the communication capacity of the terminal for sending the uplink data to network equipment, the terminal receives scheduling information at , the scheduling information is used for scheduling the terminal for sending the uplink data, the terminal sends the uplink data by using the communication capacity according to a sounding reference signal SRS resource set, the sounding reference signal SRS resource set is the SRS resource set sent by the terminal before , and the communication capacity associated with the th SRS resource set is the same as the communication capacity indicated by the indication information.

Description

data transmission method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method and a device for data transmission.

Background

As shown in fig. 1, when a terminal transmits a signal, after a baseband signal is generated, the terminal generates a Radio frequency signal through a Radio frequency transmission link (hereinafter, referred to as a transmission link for short) and then transmits the Radio frequency signal through an antenna, when the terminal receives a signal, the terminal also has a corresponding Radio frequency reception link (hereinafter, referred to as a reception link for short) (not shown in fig. 1), the terminal can support multiple transmission links in Long Term Evolution (LTE) and New Radio (NR), for example, the terminal supports transmission links and two reception links, which can be expressed as that the terminal supports 1t transmit 2r (receive).

Conventionally, when a terminal transmits uplink data to a cell, SRSs closest to the current time are selected from or more transmitted Sounding Reference Signals (SRS) transmitted before the current time, and the uplink data is transmitted according to the number of ports used by the selected SRS.

However, in an actual process, the number of antenna ports used by the terminal to transmit uplink data may change, and thus, a problem may occur that the number of transmission ports that can be used by the terminal to transmit uplink data to a certain cell does not match the number of antenna ports used according to the selected SRS.

Disclosure of Invention

The embodiment of the present application provides methods and apparatuses for data transmission, so as to solve the problem in the prior art that the number of transmission ports that can be used for transmitting uplink data is not matched with the number of closest SRS resource ports that have been transmitted.

In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:

, the embodiment of the present application provides a data transmission method, including that a terminal obtains 0 th indication information, where the 1 th indication information is used to indicate a communication capability of the terminal to transmit uplink data to a network device, the terminal receives th scheduling information at , where the th scheduling information is used to schedule the terminal to transmit the uplink data, the terminal transmits the uplink data according to a st sounding reference signal SRS resource set by using the communication capability, the st sounding reference signal SRS resource set is an SRS resource set transmitted by the terminal before th time, and the communication capability associated with the st SRS resource set is the same as the communication capability indicated by the th indication information.

The embodiment of the application provides data transmission methods, a terminal acquires indication information used for determining communication capability used when the terminal transmits uplink data to a network device, and determines, according to indication information, an SRS resource set which is closest to a downlink control channel carrying authorization information of the uplink data and has the same communication capability as that indicated by indication information, from or a plurality of SRS resource sets transmitted in association with the uplink data.

, the method provided by the embodiment of the present application further includes that the terminal obtains second indication information for indicating a time resource, which is used by the terminal to send the uplink data to the network device using the communication capability, among the plurality of time resources.

possible implementations, the communication capability includes or more of the following parameters maximum number of transmission links, maximum number of transmission layers, maximum transmission Rank number, and maximum number of antenna ports.

, the method provided by the embodiment of the application further includes that the indication information indicates that the maximum transmission link number when the terminal communicates with the network device is multiple, the terminal determines to use the th communication capability to send uplink data, the indication information indicates that the maximum transmission link number when the terminal communicates with the network device is single, the terminal determines to use the th communication capability to send uplink data, the th communication capability is larger than the second communication capability, avoids the problem that the number of send ports that can be used by the PUSCH does not match the number of closest sent SRS resource ports, specifically, the indication information indicates that the maximum transmission link number when the terminal communicates with the network device is multiple, the terminal determines that the maximum antenna port number used is multiple, the indication information indicates that the maximum transmission link number when the terminal communicates with the network device is single, and the terminal determines that the maximum antenna port number used is single.

, at least items of the indication information and the second indication information are carried in the downlink control information.

, at least items of the indication information and the second indication information are carried in a group common downlink control channel shared by the terminal and other terminals, so that other terminals in the same group with the terminal can determine to use the same number of antenna ports.

possible implementation manners, the SRS resource set includes or more SRS resources, the scheduling information further includes SRI, and the method further includes that the terminal selects SRS resources from the SRS resource set according to the SRI and uses the communication capability to transmit uplink data.

in possible implementation manners, the terminal determines that the communication capability is a th communication capability, and the terminal sends uplink data to the network device by using a th communication capability according to the th sounding reference signal SRS resource set.

Specifically, the terminal determines that the number of the maximum antenna ports is multiple, and the terminal transmits uplink data to the network device by using multiple antenna ports according to the sounding reference signal SRS resource set.

In a second aspect, an method for indicating uplink transmission includes that a network device sends th indication information to a terminal, the th indication information is used for the terminal to send communication capability of uplink data to the network device, the network device sends th scheduling information to the terminal at , the th scheduling information is used for scheduling the terminal to send the uplink data, and the network device receives the uplink data sent by the terminal according to the indicated communication capability.

, the method for indicating uplink transmission provided in the embodiment of the present application further includes that the network device sends, to the terminal, second indication information, where the second indication information is used to indicate, among the multiple time resources, the time resource for the terminal to send the uplink data to the network device by using the communication capability.

, the indication information indicates that the communication capability of the terminal when communicating with the network device is communication capability, or the indication information indicates that the communication capability of the terminal when communicating with the network device is second communication capability, wherein the communication capability is larger than the second communication capability.

possible implementation manners, at least items of the indication information and the second indication information are carried in the downlink control information.

possible implementation manners, at least items of the indication information and the second indication information are carried in a group common downlink control channel shared by the terminal and other terminals.

, the communication capability includes or more of the following parameters, maximum transmission link number, maximum number of transmission layers, maximum transmission Rank number and maximum number of antenna ports.

possible implementation manners, the network device receives the uplink data sent by the terminal according to the indicated communication capability, including that the maximum transmission link number indicated by the indication information is single, and the network device receives the uplink data sent by the terminal according to the indicated communication capability on the single transmission link number, or that the maximum transmission link number indicated by the indication information is multiple, the network device receives the uplink data sent by the terminal according to the indicated communication capability on the multiple transmission link numbers.

Or, the transmission Rank number indicated by the th indication information is the th transmission Rank number, the network device receives the uplink data sent by the terminal according to the indicated th transmission Rank number, the transmission Rank number indicated by the th indication information is the second transmission Rank number, and the network device receives the uplink data sent by the terminal according to the indicated second transmission Rank number.

possible implementation manners, the network device receives the uplink data sent by the terminal according to the indicated communication capability, including that the network device receives the uplink data sent by the terminal according to the communication capability indicated by the indication information within the time resource indicated by the second indication information.

In a third aspect, an embodiment of the present application provides data transmission apparatuses, where the data transmission apparatuses may implement the method described in any possible implementation manners of the th aspect or the th aspect, and therefore may also implement beneficial effects in any possible implementation manners of the th aspect or the th aspect.

apparatus for data transmission includes a receiving unit configured to obtain indication information, where the 0 indication information is used to indicate a communication capability of the terminal for transmitting uplink data to a network device, to receive th scheduling information at a time, where the th scheduling information is used to schedule the terminal for transmitting the uplink data, and a transmitting unit configured to transmit the uplink data using the communication capability according to a SRS resource set, where the SRS resource set is an SRS resource set transmitted before a time, and a communication capability associated with the SRS resource set is the same as the communication capability indicated by the indication information.

, where the receiving unit is further configured to obtain second indication information, where the second indication information is used to indicate, in a plurality of time resources, a time resource for the terminal to send the uplink data to the network device by using the communication capability.

, the communication capability includes or more of the following parameters:

the maximum transmission link quantity, the maximum transmission layer number, the maximum transmission Rank number and the maximum antenna port number.

, at least items of the th indication Information and the second indication Information are carried in Downlink Control Information (DCI).

possible implementation manners, the SRS resource set includes or more SRS resources, the scheduling information includes SRI, and the determining unit is configured to select SRS resources from the SRS resource set to associate with uplink data.

possible implementation manners, the sending unit of the apparatus provided in this embodiment of the present application is specifically configured to send, when the communication capability of the determining unit is the th communication capability, uplink data to the network device by using the th communication capability according to the th SRS resource set, and the sending unit is specifically configured to send, when the communication capability of the determining unit is the second communication capability, the uplink data to the network device by using the second communication capability according to the th SRS resource set.

possible implementation manners, an embodiment of the present application further provides data transmission apparatuses, where the data transmission apparatuses may be a terminal or a chip applied in the terminal, and the data transmission apparatus includes at least 0 processors and an interface circuit, where the interface circuit is configured to support the data transmission apparatus to perform obtaining of 1 th indication information, where the 2 th indication information is used to indicate a communication capability of the terminal for transmitting uplink data to a network device, receive th scheduling information at a th time, where the th scheduling information is used to schedule the terminal for transmitting the uplink data, and transmit the uplink data using the communication capability according to a th SRS resource set, where the th SRS resource set is an SRS resource set transmitted before the th time, and a communication capability associated with the th resource set is the same as the communication capability indicated by the SRS indication information.

, the interface circuit is further configured to acquire second indication information, where the second indication information is used to indicate, among a plurality of time resources, a time resource for the terminal to send the uplink data to the network device by using the communication capability.

, the communication capability includes or more of the following parameters:

possible implementation manners, the SRS resource set includes or more SRS resources, the scheduling information includes SRI, and at least processors are configured to select SRS resources from the SRS resource set to associate with uplink data.

possible implementation manners, the interface circuit provided in the embodiment of the present application is specifically configured to, when at least processors determine that the communication capability is the th communication capability, send uplink data to the network device using the th communication capability according to the st SRS resource set, and the interface circuit is specifically configured to, when at least processors determine that the communication capability is the second communication capability, send uplink data to the network device using the second communication capability according to the st SRS resource set.

Optionally, the interface circuit of the data transmission apparatus and the at least processors are coupled to each other.

Optionally, the data transmission apparatus may further comprise a memory for storing codes and data, and at least processors, interface circuits, and memory are coupled to each other.

In a fourth aspect, an embodiment of the present application provides apparatuses for indicating uplink transmission, where the apparatuses for indicating uplink transmission may implement the method described in the second aspect or any possible implementation manners of the second aspect, and therefore may also implement beneficial effects in any possible implementation manners of the second aspect or the second aspect.

apparatus for indicating uplink transmission, comprising a transmitting unit for transmitting th indication information to a terminal, the th indication information being used for a communication capability of the terminal for transmitting uplink data to a network device, and for transmitting th scheduling information to the terminal at th time, the th scheduling information being used for scheduling the terminal for transmitting the uplink data, a receiving unit for receiving the uplink data transmitted by the terminal according to the indicated communication capability.

, the sending unit is further configured to send, to the terminal, second indication information, where the second indication information is used to indicate, among the multiple time resources, a time resource for the terminal to send the uplink data to the network device using the communication capability indicated by the th indication information.

, the indication information indicates that the communication capability of the terminal when communicating with the network device is communication capability or the indication information indicates that the communication capability of the terminal when communicating with the network device is the second communication capability, wherein the communication capability is larger than the second communication capability.

, the communication capability indicated by the th indication information is th communication capability, and the receiving unit is specifically configured to receive uplink data sent by the terminal based on the th communication capability, or the communication capability indicated by the th indication information is second communication capability, and the receiving unit is specifically configured to receive uplink data sent by the terminal based on the th communication capability indicated by the th indication information.

, the communication capability includes or more items including a maximum transmission link number of a plurality, a maximum transmission layer number of a plurality, a maximum transmission Rank number of a plurality, and a maximum antenna port number of a plurality, the second communication capability includes or more items including a maximum transmission link number of a single transmission link, a maximum transmission layer number of a single transmission layer, a maximum transmission Rank number of a single transmission link, and a maximum antenna port number of a single transmission link.

possible implementation manners, the communication capability indicated by the indication information is a communication capability, the receiving unit is specifically configured to transmit uplink data based on multiple maximum transmission link numbers/multiple maximum transmission layer numbers/multiple maximum transmission Rank numbers/multiple maximum antenna ports/multiple receiving terminals, the communication capability indicated by the indication information is a second communication capability, and the receiving unit is specifically configured to transmit uplink data based on a single maximum transmission link number, a single maximum transmission layer number, a single maximum transmission Rank number, and a single maximum antenna port number.

, the receiving unit is specifically configured to receive, within the time resource indicated by the second indication information, the uplink data sent by the terminal according to the communication capability indicated by the -th indication information.

possible implementations, an embodiment of the present application further provides apparatuses for indicating uplink transmission, where the apparatuses for indicating uplink transmission may be a network device or a chip applied to the network device, and the apparatuses for indicating uplink transmission include at least processors and interface circuits, where the interface circuits are configured to support the apparatuses for indicating uplink transmission to perform the steps of receiving and sending messages/data at the apparatuses for indicating uplink transmission side described in any possible implementations of the second aspect to the second aspect, and at least processors are configured to support the apparatuses for indicating uplink transmission to perform the steps of processing messages/data at the apparatuses for indicating uplink transmission side described in any possible implementations of the second aspect to the second aspect.

possible implementation manners, interface circuit for sending indication information to the terminal, the indication information being used for the terminal to send the communication capability of the uplink data to the network device, and for sending scheduling information to the terminal at time, the scheduling information being used for scheduling the terminal to send the uplink data, and the interface circuit for receiving the uplink data sent by the terminal according to the indicated communication capability.

, the interface circuit is further configured to send, to the terminal, second indication information, where the second indication information is used to indicate, among the multiple time resources, a time resource for the terminal to send the uplink data to the network device using the communication capability indicated by the th indication information.

, the communication capability indicated by the th indication information is th communication capability, the interface circuit is specifically configured to receive uplink data sent by the terminal based on the th communication capability, or the communication capability indicated by the th indication information is second communication capability, and the interface circuit is specifically configured to receive uplink data sent by the terminal based on the th communication capability indicated by the th indication information.

possible implementation manners, the communication capability indicated by the indication information is a communication capability, the interface circuit is specifically configured to be used for uplink data sent by a plurality of receiving terminals based on a maximum number of transmission links/a plurality of maximum transmission layers/a plurality of maximum transmission Rank numbers/a plurality of maximum antenna ports/a plurality of receiving terminals based on a maximum number of transmission links, the communication capability indicated by the indication information is a second communication capability, and the interface circuit is specifically configured to be used for uplink data sent by a single receiving terminal based on a single maximum number of transmission links, a single maximum number of transmission layers, a single maximum transmission Rank number, and a single maximum number of antenna ports.

Optionally, the interface circuit of the apparatus for indicating upstream transmission and the at least processors are coupled to each other.

Optionally, the apparatus for indicating uplink transmission may further comprise a memory for storing codes and data, and the processor, the interface circuit and the memory are coupled to each other.

In a fifth aspect, the present application provides computer-readable storage media having stored therein instructions that, when executed on a computer, cause the computer to perform the methods of data transmission described in the various possible implementations of aspect or aspect .

In a sixth aspect, the present application provides computer-readable storage media having instructions stored thereon, which when executed on a computer, cause the computer to perform the methods of indicating upstream transmissions described in the second aspect or various possible implementations of the second aspect.

In a seventh aspect, the present application provides computer program products comprising instructions that, when run on a computer, cause the computer to perform the methods of data transmission described in the various possible implementations of aspect or aspect .

In an eighth aspect, the present application provides computer program products comprising instructions that, when executed on a computer, cause the computer to perform the methods of indicating upstream transmissions described in the second aspect or in various possible implementations of the second aspect.

In a ninth aspect, embodiments of the present application provide chips comprising a processor and an interface circuit, the interface circuit being coupled to the processor, the processor being configured to execute a computer program or instructions to implement the methods for data transmission described in the various possible implementations of the aspect or the aspect.

In a tenth aspect, embodiments of the present application provide chips comprising a processor and an interface circuit, the interface circuit being coupled to the processor, the processor being configured to execute a computer program or instructions to implement the methods of indicating upstream transmission described in the second aspect or the various possible implementations of the second aspect.

In particular, the chip provided in the embodiments of the present application further includes a memory for storing a computer program or instructions.

In a tenth aspect, in this embodiment kinds of communication systems include a device for sending data provided in the third aspect or in various possible implementations of the third aspect, and a device for indicating uplink transmission provided in the fourth aspect or in various possible implementations of the fourth aspect.

It is to be understood that the communication system provided in the tenth aspect may further include other devices, which are not limited in the embodiments of the present application.

Drawings

Fig. 1 is a schematic structural diagram of types of radio frequency transmission links provided in an embodiment of the present application;

fig. 2 is a schematic diagram of communication systems provided in the embodiments of the present application;

fig. 3 is a schematic diagram of another communication systems provided by an embodiment of the present application;

fig. 4 is a schematic structural diagram of base stations according to an embodiment of the present application;

fig. 5 is a schematic structural diagram ii of base stations according to an embodiment of the present application;

FIG. 6 is a schematic flowchart illustrating interaction of methods for data transmission according to an embodiment of the present application;

fig. 7 is a flowchart illustrating interaction of methods for data transmission according to an embodiment of the present application;

fig. 8 is a schematic diagram of maximum transmission link number switches according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an data transmission device according to an embodiment of the present application;

fig. 10 is a structural schematic diagram of an data transmission apparatus according to an embodiment of the present application;

fig. 11 is a schematic structural diagram three of an data transmission apparatus according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of apparatuses for indicating uplink transmission according to an embodiment of the present application;

fig. 13 is a second schematic structural diagram of apparatuses for indicating uplink transmission according to an embodiment of the present application;

fig. 14 is a third schematic structural diagram of apparatuses for indicating uplink transmission according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of chips according to an embodiment of the present application.

Detailed Description

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

In this application, "at least " means or more, "a plurality" means two or more "and/or" describing an association relationship of associated objects, it means that there may be three relationships, for example, a and/or B, it means that there may be a, both a and B, and B alone, where a, B may be singular or plural, the character "/" generally means that the former and latter associated objects are "or" relationships, "at least (s)" below, or similar expressions, refer to any combination of these items, including any combination of single item(s) or plural item(s), for example, at least item(s) in a, B, or c, may mean a, B, c, a-B, a-c, B-c, or a-B-c, where a, B, c may be single or plural, for convenience of clarity of describing this application, the technical solutions in this application, 357 "" may be used for distinguishing between the second item, "and/or" 3526 "may be used to distinguish between the second item(s), and/or" 3526) and/or the like.

The technical solutions of the embodiments of the present application may be applied to various data processing communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), frequency division multiple access (frequency division multiple access, FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems, the term "system" may be interchanged with "network", CDMA systems may implement wireless technologies such as universal radio access (universal terrestrial access, OFDMA), CDMA2000, etc., UTRA may include wideband CDMA (wideband CDMA, umd) technologies and other CDMA variant UTRA technology, CDMA2000 may cover standards (internal standards, IS)2000, UMTS-2000 may be implemented using a new wireless access (UMTS) system, UMTS mobile communication systems may also be implemented using a new wireless access (UMTS) technologies such as IEEE 25-mobile access (UMTS) systems, UMTS-2000, etc., wireless access (UMTS-mobile communication systems, etc., LTE-mobile communication systems, LTE-assisted wireless access (UMTS-wireless access, etc.), UMTS-wireless systems may also be implemented using a new wireless technologies such as IEEE 25-mobile communication systems, UMTS-wireless access (UMTS-wireless access, UMTS-2000, UMTS-wireless access, LTE-wireless access, etc., LTE-wireless access, wireless access-wireless access, etc., wireless access, etc., UMTS-wireless access.

The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

The communication method in the present application may be applied to various system architectures, as shown in fig. 2, fig. 2 illustrates schematic diagrams of a communication system provided in an embodiment of the present application, where the communication system includes or multiple terminals ( terminals are taken as an example in fig. 2, namely terminal 101), and a network device 102 and a second network device 103 that communicate with or multiple terminals, where the network device 102 and the second network device 103 communicate with each other through a interface, the network device 102 and the second network device 103 communicate with or multiple terminals through a second interface, respectively, where cells covered by the network devices may be or multiple cells, which is not specifically limited in this application.

For example, as shown in fig. 2, a cell covered by the network device 102 is a th cell 1, and a cell covered by the second network device 103 is a second cell 2.

The first network device 102 and the second network device 103 are used to provide wireless resources for or more terminals 101. of the network device 102 and the second network device 103, network devices are used as primary network devices and the other network devices are used as secondary network devices.

The primary network device is responsible for establishing a control plane connection with a core network control plane entity, transmitting a signaling message, determining whether to create an auxiliary base station for the terminal 101, and selecting an auxiliary network device for the terminal 101.

The secondary network device, the second network device except the primary network device, and the node for providing additional radio resources for the terminal 101 may not have a direct control plane connection with the core network control plane entity.

, in this embodiment of the present application, the network device 102 and the second network device 103 may be network devices of the same network standard, for example, taking a network device as a base station, where the network device 102 and the second network device 103 respectively correspond to evolved Node bs (enbs or enodebs) in a 4G scenario, at this time, the interface is an X2 interface.

For another example, the network systems respectively corresponding to the -th network device 102 and the second network device 103 may be base stations (e.g., gNB) in an NR scenario.

For another examples, in this embodiment of the present application, the network device 102 and the second network device 103 may be network devices of different network formats, for example, the network format corresponding to the network device 102 is an eNB in a 4G scenario, and the network format corresponding to the second network device 103 is a gNB in an NR scenario.

For another example, the network standard corresponding to the -th network device 102 is a gNB in an NR scenario, and the network standard corresponding to the second network device 103 is an eNB in a 4G scenario.

As another example of , the network device 102 is a 3rd generation partnership project (3 GPP) protocol base station and the second network device 103 is a non-3 GPP protocol base station.

Since the th network device 102 and the second network device 103 have different network formats and the name of the th interface is different, the following description will be given respectively:

when the th network device 102 and the second network device 103 have corresponding network formats both being gnbs under NR, the th interface is an Xn interface, and supports signaling interaction between the th network device 102 and the second network device 103.

When the network standard corresponding to the -th network device 102 is an eNB in a 4G scenario and the network standard corresponding to the second network device 103 is a gNB in an NR scenario, the -th interface is an X2 interface, when the -th network device 102 and the second network device 103 respectively correspond to enbs, the -th interface is an X2 interface, and when the -th network device 102 corresponds to a gNB in an NR scenario and the second network device 103 corresponds to an eNB in an LTE scenario, the -th interface is an X2 interface.

It is to be understood that the name of the th interface is merely an example, and the name of the interface between the th base station and the second base station is not limited in the embodiments of the present application.

No matter which network standard the network device 102 and the second network device 103 adopt, a wireless Uu port is established between the main network device and the terminal, when the network device 102 is used as the main network device, the network device 102 can transmit user plane data and control plane signaling with the terminal, the second network device 103 is used as the auxiliary network device, a wireless Uu port is also established between the second network device 103 and the terminal, and user plane data can be transmitted with the terminal.

Any terminals among or multiple terminals have at least two transmission links (i.e., a transmission link in the following embodiments, that is, the transmission link described in this application refers to a transmission link used when the terminal performs uplink transmission with the th cell/second cell), and at least two receiving links, where the terminal uses at least of the at least two transmission links to transmit uplink data or uplink signaling to the th cell/second cell, and the terminal can receive downlink data or downlink signaling transmitted by the th cell/second cell via at least of the at least two receiving links.

Illustratively, as shown in fig. 2, the terminal 101 has a plurality of transmission links, and the plurality of transmission links are used for the terminal 101 to communicate with a th cell 1 covered by a th network device 102 and a second cell 2 covered by a second network device 103.

For convenience of description, the following embodiments exemplify a mapping relationship between each cell and at least transmission links, where the terminal 101 uses at least transmission links (e.g., the transmission link 104) of the multiple transmission links to communicate with the th cell 1 covered by the th network device 102, and the terminal 101 uses at least other transmission links (e.g., the second transmission link 105) of the multiple transmission links to communicate with the second cell 2 covered by the second network device 103.

It should be noted that the th transmission link and the second transmission link in the embodiment of the present application respectively include at least transmission links.

Fig. 3 illustrates another communication systems provided by this embodiment, where the communication system includes or more terminals ( terminals are taken as examples in fig. 3, namely, terminal 101), and a network device 106 in communication with or more terminals, where two or more cells covered by the network device 106 are provided, which is not limited in this embodiment.

Illustratively, the cells covered by the network device 106 are th cell 1 and second cell 2 in fig. 3, the terminal 101 may communicate with th cell 1 and second cell 2.

For example, the terminal 101 communicates with the cell 1 using the th transmission link 104 and the terminal communicates with the second cell 2 using the second transmission link 105.

It is to be understood that, when the network device in the communication system shown in fig. 2 covers two or more cells, the manner in which the terminal communicates with multiple cells included in any network devices may refer to the architecture shown in fig. 3, which is not limited in this embodiment of the present application.

For example, the Network device , the Network device 106, or the second Network device 103 may be an Access Point (AP) in a Wireless Local Area Network (WLAN), a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Transceiver Station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA), an evolved node B (eNB, eNodeB) in LTE, or a relay Station or an Access point, or a vehicle-mounted device, a wearable device, and a Base Transceiver Station (gbb) in a future 5G Network or a Network device in a future Public Land Mobile Network (PLMN), or the like.

It is understood that, when the network device is a base station, the primary network device may be referred to as a primary base station, and the secondary network device may be referred to as a secondary base station.

A Terminal may also be referred to as a User Equipment (UE), an Access Terminal (Access Terminal), a subscriber unit (User ninit), a subscriber Station (User Station), a Mobile Station (Mobile Station), a Remote Station (Remote Station), a Remote Terminal (Remote Station), a Mobile device (Mobile Equipment), a User Terminal (User Terminal), a Station (STA), a Wireless communication device (Wireless Terminal), a User Agent (User Agent), a User Equipment (User Equipment), or a User Equipment (User Equipment), a Terminal may be a Station (PDA, STA), a cellular phone, a telephone, a Wireless protocol initiation protocol (SIP), a Wireless network (WLAN), a Wireless Local Area Network (WLAN), a Wireless network (PDA, a Wireless network (Wireless network) and a Wireless network (Wireless network) network (WLAN), a Wireless network (Wireless network) network (Wireless network) network, a Wireless network) network (Wireless network) network, a Wireless network (Wireless network) and a Wireless network (Wireless network) network (Wireless network) system, a Wireless network (Wireless network) network (Wireless network) network, a Wireless network (Wireless network) network (Wireless network) system, a Wireless network (Wireless network) network, a Wireless network.

The wearable device is a portable device which is worn directly on the body or integrated into clothes or accessories of a user, the wearable device is not only hardware devices, but also achieves powerful functions through software support, data interaction and cloud interaction, the meaning wearable smart device comprises full functions, large size and can achieve complete or partial functions independent of a smart phone, for example, a smart watch, smart glasses and the like, and is only focused on application functions of types and needs to be used with other devices such as smart phones, such as smart bracelets for monitoring signs, smart jewelry and the like.

Since the future Access Network may be implemented by using a Cloud Radio Access Network (C-RAN) architecture, possible ways are to divide the Protocol stack architecture and functions of the legacy Base station into two parts, wherein part is referred to as a Central Unit (CU), part is referred to as a Distributed Unit (DU), and the actual deployment of the CUs and the DUs is flexible, for example, the CU parts of a plurality of Base stations are integrated in to form functional entities with a larger size, as shown in fig. 4, which is a schematic diagram of Network architectures provided in the embodiments of the present application, as shown in fig. 4, the Network architecture includes a Core Network (Core Network, CN) device and an Access Network (Radio Access Network (RAN) device, wherein the RAN device includes a baseband device and a Radio frequency device, wherein the baseband device may be implemented by 7 nodes, or may be implemented by a plurality of nodes, and may be implemented by a Radio Access Network (Radio Access Network) device, a Remote Control Unit (Radio Access Network) and a Radio Access Network Control Unit (Radio Access Network), and a Radio Access Network Control Unit (Radio Access Network) device may be configured in a Radio Access Network interface Control Unit (Radio Access Network) layer, a Radio Access Network interface Control Unit (Radio Access Network) and a Radio Access Network interface Control Unit (Radio Access Network) layer, which may be configured in a Radio Access Network interface Control Unit (Radio Access Network, a Radio Access Network interface Unit (Radio Access Network) layer, a Radio Access Network interface Unit, a Radio Access Control Unit, a Radio Access Network interface Unit, a Radio Access Control Unit, a Radio Access Unit, a Radio.

The division of the protocol layers is only examples, and it can also be divided in other protocol layers, for example, in the RLC layer, the function of the RLC layer and above is set in the CU, and the function of the protocol layer below the RLC layer is set in the DU, or in a certain protocol layer, for example, part of the function of the RLC layer and the function of the protocol layer above the RLC layer are set in the CU, the rest of the function of the RLC layer and the function of the protocol layer below the RLC layer are set in DU., or it can be divided in other ways, for example, by time delay, the function whose processing time needs to meet the time delay requirement is set in the DU, and the function which does not need to meet the time delay requirement is set in the CU.

In addition, the radio frequency device may be pulled away, not placed in the DU, or integrated in the DU, or partially pulled away and partially integrated in the DU, which is not limited herein.

In addition, please refer to fig. 5, as opposed to the architecture shown in fig. 4, the Control Plane (CP) and the User Plane (UP) of the CU may be separated and implemented by being divided into different entities, i.e., a control Plane CU entity (CU-CP entity) and a User Plane CU entity (CU-UP entity), respectively.

The transmission flow of the downlink data is as follows: after receiving the downlink data sent by the core network, the CU distributes the downlink data to the DU, and the DU sends the received downlink data to the terminal. The transmission flow of the uplink data is as follows: the terminal sends the uplink data to the DU, the DU sends the received uplink data to the CU, and the CU sends the received uplink data to the core network after receiving the uplink data sent by the DU.

In the above network architecture, data generated by a CU may be transmitted to a terminal through a DU, or data generated by a terminal may be transmitted to a CU through a DU. The DU may not parse the data and directly encapsulate the data through a protocol layer and transmit the encapsulated data to the terminal or CU. For example, data of the RRC or PDCP Layer is finally processed into data of a Physical Layer (PHY) and transmitted to the terminal, or converted from received data of the PHY Layer. Under this architecture, the data of the RRC or PDCP layer can also be considered to be transmitted by the DU.

In the above embodiment, the CU is divided into network devices in the RAN, and furthermore, the CU may also be divided into network devices in the CN, which is not limited herein.

The apparatus in the following embodiments of the present application may be located in a terminal or a network device according to the functions implemented by the apparatus. When the above structure of CU-DU is adopted, the network device may be a CU node, or a DU node, or a RAN device including the functions of the CU node and the DU node.

For example, the terminal has communication capability 1 when communicating with the th cell and communication capability 2 when communicating with the second cell, but the terminal does not use communication capability 2 to communicate with the second cell at all times.

Therefore, when the number of the transmission links/antenna ports/transmission Rank/transmission layers for the terminal to communicate with the cell is indicated to be multiple, the terminal may perform uplink transmission with the cell by using all transmission links/antenna ports/transmission Rank/transmission layers in an idle state among the N transmission links.

In the architecture shown in fig. 2, taking the communication capability as the maximum number of transmission links as an example, when the transmission link 104 between the terminal 101 and the -th network device 102 is in an idle state, the terminal 101 can use the transmission link 104 in the idle state and the second transmission link 105 between the terminal 101 and the second cell to perform uplink transmission with the second cell (i.e., the maximum number of transmission links between the terminal 101 and the second cell is multiple (2T for short)).

When the transmission link between the terminal 101 and the -th network device 102 is in a non-idle state, the terminal 101 uses the second transmission link between the terminal 101 and the second cell to perform uplink transmission with the second cell (i.e., the maximum number of transmission links between the terminal 101 and the second cell is a single (abbreviated as 1T)).

The network device may send an instruction to the terminal to instruct the terminal to perform a 1T/2T dynamic handover when communicating with another cell by determining a status (idle state or non-idle state) of a transmission link between the terminal and cells on at least two time resources, i.e., when the transmission link 104 is in the idle state, the network device may instruct the terminal to perform an uplink transmission with the second cell using 2T, when the network device determines that the transmission link 104 is in the non-idle state, the network device may instruct the terminal to perform an uplink transmission with the second cell using 1T.

The term "2T" in the embodiment of the present application means that when a terminal communicates with cell 1, the communication capability used includes not only the communication capability between the terminal and cell 1 but also the communication capability between the terminal and another cell.

In the embodiment of the present application, "1T" means that, when a terminal communicates with cell 1, the used communication capability only includes the communication capability between the terminal and cell 1, and does not include the communication capability between the terminal and other cells, the following descriptions that refer to the maximum transmission layer number, the maximum transmission Rank, or the maximum antenna port number of 2T or 1T included in the communication capability may all refer to the description herein, and will not be described again in detail later.

Under the same condition, the communication effect which can be achieved when the terminal uses the communication capability of "2T" for uplink transmission in the embodiment of the application is greater than the communication effect which can be achieved when the terminal uses the communication capability of "1T" for uplink transmission.

A terminal normally has different communication links when it is transmitting uplink with different cells, e.g. the terminal would have at least two transmission links when it is communicating with at least two cells, the terminal would use different transmission link communications with the th and second cells, respectively (e.g. Tx1 and Tx2, where Tx1 is used for communicating with the th cell and Tx2 is used for communicating with the second cell). since the terminal is not transmitting uplink with the th or second cell at every moment, therefore, Tx1 between the terminal and the nd cell is normally in an idle state when the terminal is not transmitting uplink with the th cell, on the basis of which if the terminal can transmit uplink with Tx1 and 2 th and th cell, the transmission data rate between the terminal and the second cell can be raised if the terminal can transmit uplink with Tx1 and 2 and the th cell, i.e. when the terminal has no Tx2, the terminal has no Tx 461. when it is transmitting uplink with the second cell, i.e. when the terminal has no Tx 461. Tx 3 st cell.

However, when a terminal transmits uplink data to a cell, it may generally determine, using a Sounding Reference Signal (SRS) resource indicator field in a Downlink Control Information (DCI) Format 0_1, that an SRI field in a subframe n is associated with an SRS resource set (index) that is closest to a subframe n before a Physical Uplink Shared Channel (PUSCH), and thus, the terminal may transmit uplink data to the cell using 2T if the number of ports of the last SRS resource set configuration indicated by the SRS resource index in the SRS resource set is 2T, that is, if the number of ports of the last SRS resource set configuration indicated by the SRS resource set is 2T, the terminal may transmit uplink data using 2T if the number of ports of the last SRS resource set configuration indicated by the terminal is 2T, and thus, when a problem of uplink data transmission is determined, the terminal may obtain uplink data from a network using the same srt 2T, the terminal may obtain uplink data using the same uplink data as the uplink data set indicated by the terminal using 2T, and then obtain uplink data from the uplink data set using the uplink data set indicated by the terminal using the same srt 2T.

The idle communication capability means that the cell covered by the terminal and the network device does not use the communication capability for uplink transmission in time resources, or does not have uplink transmission on time resources.

The communication capability in the non-idle state refers to that a cell covered by the terminal and the network device uses the communication capability for uplink transmission or has uplink transmission on the communication capability within certain time resources.

An execution main body of data transmission methods in the embodiment of the present application may be a terminal, or may be a device applied to the terminal, for example, a chip, an execution main body of uplink transmission instructing methods may be a network device, or may be a device applied to the network device, for example, a chip.

As shown in fig. 6, an embodiment of the present application provides a flow chart illustrating interaction between data sending methods and methods for indicating uplink transmission, where the method includes:

s101, the network equipment sends th indication information to the terminal, wherein the th indication information is used for indicating the communication capability of the terminal for sending uplink data to the network equipment.

, in the case that the cell and the second cell are cells covered by different network devices, where the network device sending the th indication information to the terminal may be the network device to which the th cell belongs, and the network device in the communication capability of sending uplink data to the network device by the terminal may be the network device to which the second cell belongs, for example, in the system architecture shown in fig. 2, the network device sending the th indication information may be the th network device 102, and the network device in the communication capability of sending uplink data to the network device by the terminal may be the second network device 103, and the network device sending the th indication information and the network device in the communication capability of sending uplink data to the network device may also be the same network devices, for example, both may be the network devices to which the second cell belongs, for example, the second network device 103 shown in fig. 2, which the present embodiment is not limited thereto.

In another aspect of , when the th cell and the second cell are under coverage of network devices, the network device may be a network device to which the th cell and the second cell belong together.

Illustratively, the communication capabilities include or more of the following parameters, maximum number of transmission links, maximum number of transmission layers, maximum number of transmission Rank, and maximum number of antenna ports.

Illustratively, the th indicator may be configured by the network device to the terminal in a dynamically configurable manner.

, the indication information may be carried in Downlink Control Information (DCI).

For example, the network device adds new signaling (for example, th indication information) to the downlink control information sent to the terminal, so as to indicate the communication capability used when the terminal determines to send uplink data.

Taking the communication capability as the maximum number of antenna ports as an example, that is, the th indication information is used to indicate that the maximum number of antenna ports used by the terminal is 2T or the maximum number of antenna ports used is 1T, where the data rate when the terminal uses the maximum number of antenna ports as 2T for uplink transmission is greater than the data rate when the terminal uses the maximum number of antenna ports as 1T for uplink transmission.

In another possible implementation manners, the indication information may be carried in a group common downlink control channel shared by the terminal and other terminals.

For example, the network device may add th indication information to a common group (group) common downlink control channel, when th indication information is carried in the common group common downlink control channel, all terminals in the group perform uplink transmission on a corresponding time resource (e.g., slot) using the communication capability indicated by the network device.

For example, groups include terminal 1 and terminal 2, and the indication information is used to indicate that the terminal uses communication capability 1 for uplink transmission on time resource 1, and uses communication capability 2 for uplink transmission on time resource 2, then terminal 1 and terminal 2 use communication capability 1 for uplink transmission on time resource 1 and respectively use communication capability 2 for uplink transmission on time resource 2 and respectively use corresponding cell.

For example, the Downlink control channel may be a Physical Downlink Control Channel (PDCCH), and therefore, the th indication information may be carried in a group common PDCCH and sent to the terminal.

In addition, the network device may also configure the th indication information to the terminal in other manners, which is not limited in this embodiment of the application.

The th indicating information is not limited in size in the embodiment of the present application, and for example, the th indicating information may be 1 bit (bit).

The terminal has at least two communication capabilities, for example, th communication capability and second communication capability, wherein the terminal can use different communication capabilities to transmit uplink data to the network equipment on different time resources, wherein th communication capability is larger than the second communication capability.

The th communication capability being greater than the second communication capability means that the effect (e.g., transmission data rate) that the terminal can achieve when transmitting uplink data to the network device using the th communication capability is greater than the effect that the terminal can achieve when transmitting uplink data to the network device using the second communication capability, for example, the data rate is greater when using the th communication capability than when using the second communication capability for communication.

, the indication information is used to indicate that the communication capability when the terminal communicates with the network device is communication capability.

Wherein, the th communication capability means that the maximum transmission link number/the maximum transmission layer number/the maximum transmission Rank number/the maximum antenna port number is 2T.

For example, taking the maximum transmission link number of 2T as an example, it means that the maximum transmission link number is two or more, where the two or more transmission links at least include the transmission link between the terminal and the cell 1 and the transmission links between at least terminals and other cells.

Illustratively, the th indicator may be a th indicator, the th indicator being used to indicate that the maximum number of transmission links when the terminal communicates with the network device is 2t, for example, the th indicator is "1".

In another examples, the indication information indicates that the communication capability used by the terminal to transmit uplink data is the second communication capability.

The second communication capability means that the maximum transmission link number/the maximum transmission layer number/the maximum transmission Rank number/the maximum antenna port number is 1T.

Where, for example, the th indication information is a second indicator, and the second indicator may be "0", where the number of the maximum antenna ports is 1 t.

For example, taking the maximum number of antenna ports as 1T as an example, it means that the maximum antenna ports include at least antenna ports, where the at least antenna ports include at least the maximum antenna port between the terminal and the cell 1, and do not include at least antenna ports between the terminal and other cells.

S102, the terminal acquires th indication information sent by the network equipment.

S103, the network equipment sends th scheduling information to the terminal at th time, wherein the th scheduling information is used for scheduling the terminal to send uplink data.

The th scheduling information may be sent to the terminal by a network device to which the cell communicating with the terminal belongs, or may be sent to the terminal by a network device to which another cell belongs.

S104, the terminal receives the th scheduling information at th time.

S105, the terminal identifies, as a th SRS resource set, an SRS resource set having the same communication capability as the communication capability indicated by the indication information from among SRS resource sets transmitted before .

, the step S105 can be realized by the terminal determining the communication capability used for transmitting the uplink data to be communication capability, the terminal selecting the SRS resource set with the same communication capability as the communication capability from the SRS resource sets transmitted before the time as the SRS resource set, and transmitting the uplink data to the network device by using the communication capability according to the sounding reference signal SRS resource set, the terminal determining the communication capability used for transmitting the uplink data to be the second communication capability, the terminal selecting the SRS resource set with the same communication capability as the second communication capability from the SRS resource sets transmitted before the time as the SRS resource set, and transmitting the uplink data to the network device by using the second communication capability according to the sounding reference signal SRS resource set.

For example, if the -th communication capability includes that the maximum transmission link number is 2T, the terminal determines that the maximum number of antenna ports for transmitting uplink data is 2T, and the terminal searches for a downlink control channel closest to the uplink data grant information from an SRS resource set transmitted before the time, and the SRS resource set has the maximum number of antenna ports of 2T as the -th SRS resource set.

Since specific resources in the SRS set indicated by the SRI may relate to other parameters of uplink data transmission, such as power control, and uplink beam (beam) indication, it may be determined which SRS resource set the uplink data is associated with according to the number of indicated antenna ports, which is convenient for subsequently determining the SRS resource indicated by the SRI from the SRS resource set associated with the uplink data according to the SRI indication.

S106, the terminal transmits uplink data by using the communication capability according to the SRS resource set of the th sounding reference signal.

Specifically, the terminal may use the uplink data channel to transmit uplink data to the network device. For example, the Uplink data Channel may be a Physical Uplink Shared Channel (PUSCH).

S107, the network equipment receives the uplink data sent by the terminal according to the communication capability indicated by the th indication information.

For example, if the maximum number of antenna ports included in the communication capability indicated by the -th indication information is 2T, the network device receives uplink data sent by the terminal based on the maximum number of antenna ports being 2T.

For another example, if the maximum number of transmission links included in the communication capability indicated by the -th indication information is 1T, the terminal network device receives the uplink data sent by the terminal based on the maximum number of antenna ports being 1T.

For another example, if the maximum transmission Rank number included in the communication capability indicated by the -th indication information is 2T, the network device receives the uplink data sent by the terminal based on the maximum transmission Rank number of 2T.

It should be noted that, in a device-to-device (D2D) communication system, where the D2D communication system includes a plurality of terminals, the th indication information, the second indication information, and the th scheduling information may also be sent to the terminal by another terminal in communication with the terminal, which is not limited in this embodiment of the present application.

As another embodiments of the present application, in the method provided by the embodiment of the present application, the indication information indicates that the number of transmission links/the number of antenna ports/the number of transmission ranks/the number of transmission layers when the terminal communicates with the network device is , and the terminal determines that the communication capability associated with the SRS resource set includes items, that is, the maximum number of transmission links/the maximum number of antenna ports/the maximum number of transmission ranks/the maximum number of transmission layers is 2T.

Taking the system architecture shown in fig. 2 as an example, when the network device is the th network device 102 having a connection with the terminal, the other network device may be the second network device 103 having a connection with the terminal.

Illustratively, the transmission links between the terminal and the network device 1 include a transmission link 1, a transmission link 2 and a transmission link 3, the transmission links between the terminal and the network device 2 include a transmission link 4 and a transmission link 5, and the indicates that when the information indicates that the maximum transmission link number of the terminal and the network device 1 is 2T, the terminal can use the transmission links 1, 2, 3 and 4 to transmit uplink data to the cell covered by the network device 1, or the terminal uses the transmission links 1, 2, 3, 4 and 5 to transmit uplink data to the cell covered by the network device 1.

Also example, as shown in fig. 2, taking the terminal has two transmission links, that is, the transmission link 104 and the second transmission link 105, and the network device is the second network device 103 as an example, when the indication information indicates that the maximum transmission link number when the terminal sends uplink data to the cell covered by the second network device 103 is 1T, the terminal and the second network device 103 use the transmission link 104 or the second transmission link 105.

It can be understood that, in order to make the maximum number of transmission links for uplink transmission between the terminal and the cell covered by the network device be 2T, and not affect the uplink transmission between the terminal and other cells, the maximum transmission links for uplink transmission between the terminal and the cell include transmission links or at least transmission links between the terminal and the cell, and a transmission link in an idle state among transmission links between the terminal and other cells.

As another embodiments of the present application, when the indication information indicates that the maximum transmission link number/the maximum antenna port number/the maximum transmission Rank/the maximum transmission layer number when the terminal communicates with the network device is 1T or single, the terminal determines that the maximum transmission link number/the maximum antenna port number/the maximum transmission Rank/the maximum transmission layer number included in the communication capability associated with the -th SRS resource set is single or 1T, so that the terminal can determine, when uplink data needs to be transmitted subsequently, an SRS resource set whose maximum transmission link number is single from among transmitted SRS resource sets as the -th SRS resource set, and transmit the uplink data for single according to the maximum transmission link number.

Illustratively, in combination with the above example, when the th indication information indicates that the number of transmission links when the terminal communicates with the cell covered by the network device 1 is single, the terminal can perform uplink transmission with the cell covered by the network device 1 by using the transmission links 1, 2 and 3, or the terminal performs uplink transmission with the cell covered by the network device 1 by using the

transmission links

1, 2 and 1.

Illustratively, the th indicator is the th indicator, the terminal determines that the communication capability includes a plurality of maximum transmission layers/maximum transmission ranks/maximum antenna ports/maximum transmission links, and the th indicator is the second indicator, the terminal determines that the communication capability includes a plurality of maximum transmission layers/maximum transmission ranks/maximum antenna ports/maximum transmission links as a single one.

As multiple slots can be scheduled in a slot aggregation (slot aggregation) scheduling manner at present, that is, pieces of DCI can schedule multiple slots, and the multiple slots schedule the same data, because multiple slots are scheduled each time, it cannot be guaranteed that the multiple slots are transmitted by using the same number of antenna ports, optionally, as another embodiments of the present application, as shown in fig. 7, the method provided in the embodiments of the present application further includes:

and S108, the network equipment sends second indication information to the terminal, wherein the second indication information is used for indicating the time resource which adopts the communication capability indicated by the th indication information to send the uplink data in the plurality of time resources.

It can be understood that, taking the case that the communication capability includes a plurality of maximum transmission links as an example, after the second indication information is used to indicate that the maximum transmission link number is a plurality of time resources for transmitting uplink data in the plurality of time resources, the terminal may determine that the maximum transmission link number is adopted as a single uplink data in other time resources than the time resources for transmitting uplink data in the plurality of time resources in the maximum transmission link number. Of course, the second indication information in step S107 can also be used to indicate a time resource, which is used to transmit the uplink data by using a single transmission link, in a plurality of time resources, so that the terminal can determine that the time resources, other than the time resource used to transmit the uplink data by using the single transmission link, in the plurality of time resources are used to transmit the uplink data by using the plurality of transmission links.

It should be noted that the meaning of a plurality of transmission links is equivalent to the meaning that the number of transmission links is plural. The meaning of a single transmission link is equivalent to the meaning that the number of transmission links is single.

The plurality of time resources may be time slots or symbols.

In the embodiment of the present application, the second indication information and the th indication information may be carried in the same messages or the same downlink control channels and sent to the terminal.

And S109, the terminal acquires second indication information.

Alternatively, after step S108, the terminal may determine a time resource for transmitting uplink data using the communication capability indicated by the th indication information from among the plurality of time resources.

For example, the th indication information indicates that the communication capability is the th communication capability, the terminal may determine a time resource of the plurality of time resources for transmitting the uplink data using the th communication capability indicated by the th indication information and a time resource of the plurality of time resources for transmitting the uplink data using other communication capabilities than the time resource for transmitting the uplink data using the th communication capability.

In this case, as another possible implementation manners, step S106 in this embodiment of the application may also be implemented by the terminal transmitting the uplink data to the network device according to the SRS resource set using the th communication capability within the time resource indicated by the second indication information, and the terminal transmitting the uplink data to the network device according to the SRS resource set using the second communication capability in time resources other than the time resource indicated by the second indication information among the plurality of time resources.

Taking the example that the second indication information is carried in the downlink control information, the second indication information may be duration or bitmap information (including at least bits or second bits, where the bit is used to indicate that multiple transmission links are used, and the second bit is used to indicate that a single transmission link is used.

For example, the th bit is 1, and the second bit is 0, for example, if DCI schedules 4 slots (e.g., slot 1 to slot 4 shown in fig. 8), the network device needs to indicate to the terminal which slot of the 4 slots to send uplink data to the network device, and use multiple th communication capabilities, and may add bitmap information 1010 in the downlink control information to indicate the terminal, the terminal may determine that sending uplink data to the network device in slot 1 and slot 3 uses the th communication capability (i.e., 2T in fig. 8), and sending uplink data to the network device in slot 2 and slot 4 uses the second communication capability (i.e., 1T in fig. 8).

In the embodiment of the present application, the th SRS resource set includes or more SRS resources, and each of the or more SRS resources has the same communication capability.

Optionally, the th scheduling information further includes an SRI, and as another embodiments of the present application, the method provided by the embodiment of the present application further includes that the terminal selects an SRS resource indicated by the SRI from the th SRS resource set according to the SRI included in the th scheduling information, and transmits uplink data.

Specifically, the terminal may determine a resource index in the th SRS resource set according to an SRS Resource Indicator (SRI), and select an SRS resource indicated by the SRI from the th SRS resource set according to the resource index to transmit uplink data.

Optionally, the SRI may be carried in DCI with format 0 or format 1 and sent to the terminal.

Specifically, the step S107 can be implemented by that the communication capability indicated by the th indication information is the th communication capability, and the network device receives the uplink data sent by the terminal according to the th communication capability, or that the communication capability indicated by the th indication information is the second communication capability, and the network device receives the uplink data sent by the terminal according to the second communication capability.

Step S107 can also be implemented by the network device receiving the uplink data transmitted by the terminal according to the th communication capability within the time resource indicated by the second indication information, the network device receiving the uplink data transmitted by the terminal according to the second communication capability in a plurality of time resources other than the time resource indicated by the second indication information.

The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is to be understood that each network element, for example, the data sending device, the uplink transmission instructing device, and the like, includes a hardware structure and/or a software module for performing each function in order to implement the above functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, a device for data transmission and a device for indicating uplink transmission may be exemplified according to the method, and the functional units may be divided, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into processing units.

The following description will be given by taking the division of each function module corresponding to each function as an example:

in case of using integrated units, fig. 9 shows possible schematic diagrams of data transmission apparatuses involved in the above embodiments, where the data transmission apparatuses may be terminals or chips applied in terminals, and the data transmission apparatuses include a receiving unit 201, a determining unit 202, and a transmitting unit 203.

The apparatus for supporting data transmission of the receiving unit 201 executes steps S102, S104, and S109 in the above embodiments. The apparatus for supporting data transmission of the determination unit 202 performs step S105 in the above-described embodiment. The apparatus for supporting data transmission of the transmission unit 203 executes step S106 in the above-described embodiment.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Fig. 10 shows possible logical structural diagrams of the data transmission device in the above embodiment, where the data transmission device may be a terminal in the above embodiment or a chip applied in the terminal, where the data transmission device includes a processing module 212 and a communication module 213, the processing module 212 is used to control and manage the actions of the data transmission device, for example, the processing module 212 is used to perform steps of message or data processing on the device side of data transmission, and the communication module 213 is used to perform steps of message or data processing on the device side of data transmission.

For example, as possible implementations, the means for supporting data transmission by the communication module 213 performs S102, S104, S106, and S109 in the above-described embodiment and/or other processes performed by the means for data transmission for the techniques described herein.

Optionally, the data transmission apparatus may further include a storage module 211 for storing program codes and data of the data transmission apparatus.

The processing module 212 may be, for example, a processor or controller such as a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable array or other programmable logic device, transistor logic, hardware components, or any combination thereof that may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the present disclosure.

When the processing module 212 is the processor 220, the communication module 213 is the interface circuit 230 or the transceiver, and the storage module 211 is the memory 240, the data transmission device according to the present application may be the apparatus shown in fig. 11.

The interface circuit 230 is used for storing program codes and data of a device for transmitting data, the interface circuit 230 is used for communicating the device for supporting data transmission with other equipment (for example, a device for indicating uplink) and the processor is used for executing the program codes and data stored in the memory 240 so as to control and manage the action of the device for transmitting data.

For example, in possible implementations, the interface circuit 230 supports the means for data transmission to perform S102, S104, S106, and S109. and/or other processes performed by the means for data transmission for the techniques described herein. the processor 220 supports the means for data transmission to perform S105 in the above-described embodiments.

In the case of using integrated units, fig. 12 shows possible structural diagrams of the apparatus for indicating uplink transmission involved in the above embodiment, where the apparatus for indicating uplink transmission may be a network device or a chip applied in a network device.

The sending unit 301 is configured to support the device that instructs uplink transmission to perform steps S101, S103, and S108 in the foregoing embodiment. The receiving unit 302 is configured to support the apparatus instructing uplink transmission to perform S107 in the foregoing embodiment.

Fig. 13 shows possible logical structural diagrams of the apparatus for indicating uplink transmission in the foregoing embodiment, where the apparatus for indicating uplink transmission is an integrated unit, and the apparatus for indicating uplink transmission may be the network device in the foregoing embodiment or a chip applied in the network device.

For example, in possible implementations, the communication module 313 is configured to enable the apparatus for indicating uplink transmission to perform S101, S103, S107, and S108 in the above embodiments and/or other processes performed by the apparatus for indicating uplink transmission for the techniques described herein.

Optionally, the apparatus for indicating uplink transmission may further include a storage module 311, configured to store program codes and data of the apparatus for indicating uplink transmission.

The processing module 312 may be a processor or controller, such as a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable array or other programmable logic device, transistor logic, hardware components, or any combination thereof that may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the present disclosure.

When the processing module 312 is the processor 320, the communication module 313 is the interface circuit 330 or the transceiver, and the storage module 311 is the memory 340, the apparatus for indicating uplink transmission according to the present application may be the apparatus shown in fig. 14.

The bus 310 may be a PCI bus or an EISA bus, etc. the bus 310 may be divided into an address bus, a data bus, a control bus, etc. for convenience of illustration, only thick lines are used for illustration in fig. 14, but not only buses or types of buses are represented, wherein the memory 340 is used for storing program codes and data of the apparatus for indicating upstream transmission, the interface circuit 330 is used for supporting the apparatus for indicating upstream transmission to communicate with other devices (e.g., terminals), and the processor 320 is used for supporting the apparatus for indicating upstream transmission to execute the program codes and data stored in the memory 340 to realize the action of message/data control on the side of the apparatus for indicating upstream transmission.

As possible implementations, the interface circuit 330 is configured to support the means for instructing the uplink transmission to perform S101, S103, S107, and S108 in the above-described embodiments and/or other processes performed by the means for instructing the uplink transmission for the techniques described herein.

Fig. 15 is a schematic structural diagram of a chip 150 according to an embodiment of the present disclosure, the chip 150 includes or more than two (including two) processors 1510 and an interface circuit 1530.

Optionally, the chip 150 may also include a memory 1540, which may include both read-only memory and random access memory, and which provides operating instructions and data to the processor 1510. the portion of the memory 1540 may also include non-volatile random access memory (NVRAM).

In embodiments, memory 1540 stores elements, executable modules, or data structures, or subsets thereof, or extensions thereof:

in the embodiment of the present application, by calling an operation instruction stored in the memory 1540 (the operation instruction may be stored in an operating system), a corresponding operation is performed.

the possible implementation manner is that the data sending device and the device for indicating the uplink transmission use similar chip structure, and different devices can use different chips to realize their respective functions.

Processor 1510 controls the operation of the means for sending data and the means for directing upstream transmissions, processor 1510 may also be referred to as a Central Processing Unit (CPU), memory 1540 may include read-only memory and random access memory, and provide instructions and data to processor 1510, portion of memory 1540 may also include non-volatile random access memory (NVRAM), e.g., in-application memory 1540, interface circuitry 1530, and memory 1540 are coupled to bus system , where bus system 1520 may include a power bus, a control bus, a status signal bus, etc., although for clarity of illustration, various buses are labeled as bus system 1520 in fig. 15.

The method disclosed in the embodiments of the present application may be implemented in a processor 1510, or may be implemented by a processor 1510, the processor 1510 may be types of integrated circuit chips having signal processing capability, and in the implementation process, the steps of the method may be implemented by integrated logic circuits (ASICs) of hardware in the processor 1510, or instructions in the form of software, the processor 1510 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a field-programmable array (FPGA), or other programmable logic devices, discrete , or transistor logic devices, discrete hardware components.

Optionally, the interface circuit 1530 is configured to perform the steps of receiving and transmitting of the terminal and the network device in the embodiments shown in fig. 6 and fig. 7.

The processor 1510 is configured to perform the steps of the terminal and network device processes in the embodiments shown in fig. 6 and 7.

In the above embodiments, the instructions stored by the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product may be written in the memory in advance or may be downloaded in the form of software and installed in the memory.

A computer program product includes or more computer instructions which, when loaded and executed on a computer, cause a process or function in accordance with embodiments of the application to occur, in whole or in part, a computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus, the computer instructions may be stored in a computer readable storage medium, or transmitted from computer readable storage media to computer readable storage media, e.g., the computer instructions may be transmitted from website sites, computers, servers, or data centers to website sites, computers, servers, or data centers via wire (e.g., coaxial cable, fiber optics, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.).

there is provided computer-readable storage media having instructions stored thereon which, when executed, cause a terminal or chip employed in the terminal to perform steps S102, S104, S105, and S108 in embodiments and/or other processes performed by the terminal or chip employed in the terminal for the techniques described herein.

, computer-readable storage media are provided that have instructions stored therein that, when executed, cause a network device or chip employed in the network device to perform S101, S103, S106, and S107 in embodiments and/or other processes performed by the network device or chip employed in the network device for the techniques described herein.

The aforementioned readable storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

there is provided a computer program product comprising instructions stored thereon that, when executed, cause a terminal or chip employed in the terminal to perform steps S102, S104, S105, S106 and S109 in embodiments and/or other processes performed by the terminal or chip employed in the terminal for the techniques described herein.

In another aspect, a computer program product is provided that includes instructions stored thereon, which when executed, cause a network device or a chip employed in the network device to perform S101, S103, S107, and S108 in embodiments and/or other processes performed by the network device or a chip employed in the network device for the techniques described herein.

, chips are provided, the chips being used in terminals, the chips including or more than two (including two) processors and interface circuits, the interface circuits being interconnected with the or more than two (including two) processors by wires, the processors being configured to execute instructions to perform S102, S104, S105, S106, and S109 in embodiments and/or other processes performed by terminals for the techniques described herein.

In another aspect, chips are provided, where the chips are used in a network device, and the chips include or more than two (including two) processors and interface circuits, where the interface circuits and the or more than two (including two) processors are interconnected by lines, and the processors are configured to execute instructions to perform S101, S103, S107, and S108 in embodiments and/or other processes performed by the network device for the techniques described herein.

In addition, the present application also provides communication systems, which include the data transmission device shown in fig. 9 to 11 and the uplink transmission indication device shown in fig. 12 to 14.

The computer instructions may be stored in a computer readable storage medium, or transmitted from 2 computer readable storage media to computer readable storage media, for example, the computer instructions may be transmitted from website sites, computers, servers, or data centers via wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL for short)) or wireless (e.g., infrared, wireless, SSD, etc.) to another website site, computer, server, or data centers via wired (e.g., optical fiber, digital subscriber line (digital subscriber line, DSL for short)) or wireless (e.g., infrared, wireless, SSD, etc.) storage media, or may be transmitted using a solid state computer accessible storage medium, such as a semiconductor storage medium, a solid state disk (DVD, optical disk, etc.), a solid state computer readable storage medium, or a solid state computer readable storage medium, such as a magnetic disk (DVD, optical disk, SSD, optical disk, etc.), a solid state computer readable storage medium, a computer readable by a computer, a computer readable medium, a computer readable by a computer readable medium.

Although the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims, in which the term "comprising" does not exclude other elements or steps, and "" or "" does not exclude a plurality.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include such modifications and variations.

Claims

1, A method for data transmission, comprising:

the terminal acquires th indication information, wherein the th indication information is used for indicating the communication capability of the terminal for sending uplink data to the network equipment;

the terminal receives scheduling information at , wherein the scheduling information is used for scheduling the terminal to transmit the uplink data;

the terminal transmits the uplink data by using the communication capability according to an th Sounding Reference Signal (SRS) resource set, the th Sounding Reference Signal (SRS) resource set is an SRS resource set transmitted before the th time, and the communication capability associated with the th SRS resource set is the same as the communication capability indicated by the th indication information.

2. The method of data transmission, according to claim 1, wherein the method includes:

and the terminal acquires second indication information, wherein the second indication information is used for indicating the terminal to adopt the communication capability in a plurality of time resources to send the time resources of the uplink data to the network equipment.

3. method of data transmission, according to claim 1 or 2, characterized in that the communication capability includes or more of the following parameters:

the number of the maximum transmission links, the number of the maximum transmission layers, the number of the maximum transmission Rank and the number of the maximum antenna ports.

4. The method of data transmissions according to any of claims 1-3, wherein at least of the th indication information and the second indication information are carried in Downlink Control Information (DCI).

5. The method of data transmissions according to any of claims 1-3, wherein at least of the th indication information and the second indication information are carried in group common downlink control information common to the terminal and other terminals.

6, A data transmission device, wherein the device is a terminal or a chip applied in the terminal, the method includes:

a receiving unit, configured to obtain -th indication information, where the -th indication information is used to indicate a communication capability of the terminal to send uplink data to a network device;

a receiving unit, configured to receive th scheduling information at , where the th scheduling information is used for scheduling the terminal to transmit the uplink data;

a sending unit, configured to send the uplink data by using the communication capability according to an th sounding reference signal SRS resource set, where the th sounding reference signal SRS resource set is an SRS resource set sent before a th time, and a communication capability associated with the th SRS resource set is the same as the communication capability indicated by the th indication information.

7. The data sending apparatus according to claim 6, wherein the receiving unit is further configured to obtain second indication information, and the second indication information is used to instruct the terminal to use the communication capability among multiple time resources to send the time resource of the uplink data to the network device.

8. apparatus for data transmission according to claim 6 or 7, wherein the communication capability includes or more of the following parameters:

9. The apparatus of data transmission of any of claims 6-8, wherein at least of the th indication information and the second indication information is carried in Downlink Control Information (DCI).

10. The apparatus of data transmission of any one of claims 6-8 of , wherein at least of the th indication information and the second indication information is carried in group common downlink control information common to the terminal and other terminals.

An apparatus for data transmission of , comprising at least processors and interface circuits, wherein the at least processors are configured to perform the method for data transmission of as claimed in any one of claims 1 to 5, .

Chip of 12, , characterized in that, the chip includes a processor and an interface circuit, the interface circuit is coupled with the processor, the processor is used to run computer program or instructions to implement the data transmission method of any of claims 1 to 5 and , the interface circuit is used to communicate with other modules outside the chip.