CN112737751B

CN112737751B - Uplink SRS pilot frequency transmission method and device

Info

Publication number: CN112737751B
Application number: CN202011511589.3A
Authority: CN
Inventors: 焦慧颖; 杜滢; 魏贵明; 徐菲; 沈霞; 闫志宇; 刘晓峰
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2023-03-24
Anticipated expiration: 2040-12-18
Also published as: CN112737751A

Abstract

The application discloses an uplink SRS pilot frequency transmission method, which comprises the following steps: configuring indexes of a plurality of downlink carriers and indexes of at least 1 uplink carrier through high-level signaling, and time slot offset related to each downlink carrier; the uplink carrier and a time slot indicated by a time slot offset corresponding to each downlink carrier are used for transmitting an uplink SRS pilot frequency; activating the high-level signaling configuration through a downlink control signaling carried by a downlink carrier; the downlink carrier comprises a first downlink carrier and a second downlink carrier; and the time slot offset values corresponding to the first downlink carrier and the second downlink carrier are different. The application also includes a device applying the method. The method and the device solve the problems of inflexible signaling and high cost when triggering the aperiodic SRS, and are particularly suitable for triggering the aperiodic SRS of a plurality of service cells of each terminal device under the condition of carrier aggregation.

Description

Uplink SRS pilot frequency transmission method and device

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a method and device for transmitting an uplink SRS pilot.

Background

NR supports three SRS transmission schemes, periodic, semi-persistent and aperiodic. And (3) periodic transmission: all parameters of the SRS resource with the time domain type configured as a period are configured by high-level signaling, and the UE performs periodic transmission according to the parameters configured by the lock. All SRS resources within the same set of SRS resources have the same periodicity. Semi-persistent transmission: the SRS resource whose time domain type is configured to be semi-persistent is also periodically transmitted during the activation period. The method is different from the periodic SRS in that the UE does not send the SRS after receiving the high-level signaling configuration of the semi-continuous SRS resource, the SRS corresponding to the semi-continuous SRS resource is started to be periodically sent only after receiving the activation signaling of the semi-continuous SRS resource sent by the MAC layer, and the SRS is stopped to be sent after receiving the deactivation command of the semi-continuous SRS resource sent by the MAC layer. Aperiodic transmission: the SRS resources with the latency type configured to be aperiodic are activated by DCI signaling. And the UE does not receive the SRS triggering signaling triggering the aperiodic SRS resource once, and the UE performs SRS transmission corresponding to the triggered SRS resource once. The SRS triggering signaling in the DCI comprises 2 bits, 1 state identifier in 4 states which can be identified by the 2 bits does not trigger the non-periodic SRS transmission, and the other 3 states respectively identify and trigger a first SRS resource set, a second SRS resource set and a third SRS resource set; one state may trigger one or more SRS resource sets, and multiple SRS resource sets corresponding to one state may correspond to multiple carriers.

In the current 3GPP standard, aperiodic SRS is triggered either with unicast DCI (e.g., format 1 or format 0) or group common DCI, and in case of carrier aggregation, SRS triggering status is the same regardless of the serving cell transmitting the corresponding DCI triggering SRS. In other words, the same set of SRS resources and related SRS parameters (e.g., slotofsets) are triggered by the same DCI regardless of the serving cell. In order to enable the aperiodic SRS triggering of multiple serving cells of multiple UEs, multiple PDCCHs are further required to implement network scheduling, which introduces a large overhead of downlink control signaling.

Disclosure of Invention

The application provides an uplink SRS pilot frequency transmission method and equipment, which solve the problems of inflexible signaling and high cost when triggering an aperiodic SRS, and are particularly suitable for triggering the aperiodic SRS of a plurality of serving cells of each terminal equipment (UE) under the condition of carrier aggregation.

In a first aspect, the present application provides an uplink SRS pilot transmission method, including the following steps:

configuring indexes of a plurality of downlink carriers and indexes of at least 1 uplink carrier through high-level signaling, and time slot offset related to each downlink carrier;

the uplink carrier and a time slot indicated by a time slot offset corresponding to each downlink carrier are used for transmitting an uplink SRS pilot frequency;

activating the configuration of the high-level signaling through a downlink control signaling carried by a downlink carrier; the downlink carrier comprises a first downlink carrier and a second downlink carrier; the time slot offset values corresponding to the first downlink carrier and the second downlink carrier are different;

transmitting the uplink SRS pilot in at least one slot indicated by an uplink carrier and the slot offset.

Further, the higher layer signaling configures an SRS resource set associated with each downlink carrier, where the SRS resource set is used for transmitting an uplink SRS pilot; the values of the at least one parameter are different in the sets of SRS resources associated with the first downlink carrier and the second downlink carrier.

Further, the high layer signaling configures indexes of a plurality of uplink carriers; the SRS resource triggered by the downlink control signaling comprises an index of an uplink carrier; each slot offset for at least one uplink carrier.

Preferably, the downlink control signaling includes a slot offset adjustment value associated with each downlink carrier.

The method according to any one of the embodiments of the first aspect of the present application, applied to a network device, includes the following steps:

receiving or generating the high-level signaling, and sending the high-level signaling;

generating or sending the downlink control signaling;

and receiving the uplink SRS pilot frequency in parallel at the time slot indicated by the uplink carrier wave and a plurality of time slot offsets.

The method according to any one of the embodiments of the first aspect of the present application, applied to a terminal device, includes the following steps:

receiving and identifying the higher layer signaling;

receiving and identifying the downlink control signaling;

and transmitting an uplink SRS pilot frequency in at least one SRS resource set in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

In a second aspect, the present application further provides a network device, where with the method of any of the first aspects of the present application, the network device is configured to: receiving, generating or sending the high-layer signaling; generating or sending the downlink control signaling; and receiving the uplink SRS pilot frequency in parallel at the time slot indicated by the uplink carrier wave and a plurality of time slot offsets.

In a third aspect, the present application further provides a terminal device, where with the method of any one of the first aspects of the present application, the terminal device is configured to: receiving and identifying the higher layer signaling; receiving and identifying the downlink control signaling; and transmitting an uplink SRS pilot frequency in at least one SRS resource set in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

In the apparatus of the second aspect and the third aspect, the present application further proposes a communication device, including: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to any one of the embodiments of the first aspect of the application.

In a fourth aspect, the present application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the first aspect of the present application.

In a fifth aspect, the present application further provides a mobile communication system, which includes at least one network device described in any embodiment of the present application and/or at least one terminal device described in any embodiment of the present application.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

the invention solves the problems that the aperiodic SRS resources triggered by different carrier downlink control signaling and the time slot bias for SRS transmission are the same, and greatly improves the flexibility of the transmission of the aperiodic SRS resources. In addition, considering that a plurality of uplink carriers exist in carrier aggregation, the scheme designed by the patent can simultaneously transmit the non-periodic SRS resource at the plurality of uplink carriers through triggering of one downlink control signaling, thereby improving the flexibility of SRS resource transmission in a carrier aggregation scene without carrier switching.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 (a) is a flow chart of an embodiment of the method of the present application;

fig. 1 (b) is a schematic diagram of an embodiment in which the slot offset is different in association with each downlink carrier;

fig. 1 (c) is a schematic diagram of an embodiment in which the set of SRS resources associated with each downlink carrier is different;

fig. 1 (d) is a schematic diagram of an embodiment in which downlink control signaling includes multiple uplink carrier indexes;

fig. 1 (e) is a schematic diagram of an embodiment in which downlink control signaling includes a slot offset adjustment value;

FIG. 2 is a flow chart of an embodiment of the method of the present application for a network device;

FIG. 3 is a flowchart of an embodiment of a method of the present application for a terminal device;

FIG. 4 is a schematic diagram of an embodiment of a network device;

FIG. 5 is a schematic diagram of an embodiment of a terminal device;

fig. 6 is a schematic structural diagram of a network device according to another embodiment of the present invention;

fig. 7 is a block diagram of a terminal device of another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the current 3GPP standard, aperiodic SRS is triggered either with unicast DCI (e.g., format 1 or format 0) or with group-common DCI. In case of carrier aggregation, the SRS triggering state is the same regardless of the serving cell transmitting the corresponding DCI triggering SRS. In other words, the same set of SRS resources and related SRS parameters (e.g., slotOffset) are triggered by the same DCI regardless of the serving cell. In order to improve the flexibility of SRS triggering, CC specific aperiodic SRS triggering may be introduced.

In order to enable aperiodic SRS triggering of multiple serving cells of each UE, multiple PDCCHs are required to implement network scheduling, which introduces a large overhead of downlink control signaling. The downlink control signaling needs to be enhanced to enable flexible triggering, reducing the downlink control signaling overhead.

The method and the device realize that the SRS resources of the uplink carriers triggered by different downlink carriers are different and the time slot offsets are different, and can simultaneously trigger the SRS of a plurality of uplink carriers to be simultaneously transmitted, realize that the triggered resources of different uplink carriers are different and the time slot offsets are different, and do not increase the overhead of any downlink physical signaling.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Fig. 1 (a) is a flow chart of an embodiment of the method of the present application.

The application provides an uplink SRS pilot frequency transmission method, which comprises the following steps 101 to 103:

step 101, configuring indexes of a plurality of downlink carriers and indexes of at least 1 uplink carrier by a high-level signaling, and time slot offset related to each downlink carrier;

the slot offset is used for determining the time slot for transmitting the uplink SRS according to the time slot for receiving the downlink control signaling, and can be represented by the number of the time slots. For example, roughly, the slot offset can be defined as the numerical difference between the slot receiving the downlink control signaling and the slot transmitting the uplink SRS pilot; as another example, standard TS 38.211 defines a time slot for a set of resources to transmit an aperiodic SRS positioning pilot on one carrier. Triggering the uplink aperiodic SRS through the UE special DCI, the group common DCI or the uplink DCI. When the terminal receives the DCI trigger information in the slot n, it will send an aperiodic SRS in the SRS resource set of the following slots:

where k is the slot offset (slotOffset) for each triggered SRS resource set configured by the higher layer. The value of this slot offset is related to the subcarrier spacing that triggers SRS.

Preferably, the uplink SRS in each embodiment of the present application is an aperiodic SRS.

According to the standard TS 38.211, in the aperiodic SRS configuration, a terminal receives a group of high-level parameters SRS-resource set, including slotOffset, SRS-resource eSetId, aperiodic SRS-resource Trigger and aperiodic SRResource TriggerList.

In the present invention, the uplink carrier and the time slot indicated by the time slot offset corresponding to each downlink carrier are used for transmitting the uplink SRS pilot. Thus, through one higher layer signaling, a plurality of resource positions for transmitting the uplink SRS pilot frequency can be configured at one time.

For example, the downlink carrier includes a first downlink carrier and a second downlink carrier; and the time slot offset values corresponding to the first downlink carrier and the second downlink carrier are different. As shown in fig. 1 (b), in an embodiment that slot offsets associated with each downlink carrier are different, a higher layer configures that a slot offset corresponding to a first downlink carrier CC1 is K1, a slot offset corresponding to a second downlink carrier CC2 is K2, a terminal receives a downlink control signaling of the first downlink carrier CC1, the terminal sends an aperiodic-triggered SRS on the slot corresponding to the slot offset K1, and if the terminal receives the downlink control signaling of the second downlink carrier CC2, the terminal sends the aperiodic-triggered SRS on the slot corresponding to the slot offset K2, where the slot offsets K1 and K2 are different and have a binding relationship with the downlink carriers.

In a carrier aggregation scenario, a terminal receives a downlink control signaling of a first downlink carrier, where the control signaling includes a trigger signaling for triggering an aperiodic SRS resource, the signaling identifier does not trigger or trigger an SRS resource set, and a slot offset of the SRS resource triggered by the first downlink carrier is different from a slot offset of the SRS resource triggered by a second downlink carrier.

In fig. 1 (b), (c), (d), and (e), color blocks in the downlink carriers (DL CC1, CC 2) indicate the slot positions of downlink control signaling, and color blocks in the uplink carriers (UL CC1, CC 2) indicate the slot positions of transmitting uplink SRS pilots.

Further, the higher layer signaling configures an SRS resource set associated with each downlink carrier, where the SRS resource set is used for transmitting an uplink SRS pilot; the values of the at least one parameter are different in the sets of SRS resources associated with the first downlink carrier and the second downlink carrier. As shown in fig. 1 (c), the embodiment that the SRS resource set associated with each downlink carrier is different is shown in the drawing, the triggered SRS resource set is associated with the downlink carrier, and the SRS resource triggered by the first downlink carrier is different from the SRS resource triggered by the second downlink carrier;

as shown in the figure, the time slot offset corresponding to the first downlink carrier CC1 is configured to be K1 by the high layer, the time slot offset corresponding to the second downlink carrier CC2 is configured to be K2, and a triggered SRS resource set corresponding to the first downlink carrier CC1 and a triggered SRS resource set corresponding to the second downlink carrier CC2 are configured, where SRS resource sets triggered by different downlink carriers are different. The terminal receives downlink control signaling of a first downlink carrier, the triggered aperiodic SRS resource is an aperiodic SRS first resource set, the terminal receives downlink control signaling of a second downlink carrier, the triggered aperiodic SRS resource is an aperiodic SRS second resource set, and the two resource sets are different and have binding relations with different downlink carriers.

At least one parameter in the SRS resource set, for example, specified in TS 38.311, is configured by the higher layer, including parameters such as SRS port number, comb configuration, time domain resource mapping, frequency domain resource location and hopping condition, as follows:

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102, activating the configuration of the high-level signaling through a downlink control signaling carried by a downlink carrier;

further, the high layer signaling configures indexes of a plurality of uplink carriers; the SRS resource triggered by the downlink control signaling comprises an index of an uplink carrier; each slot offset for at least one uplink carrier. As shown in fig. 1 (d), the embodiment that the downlink control signaling includes multiple uplink carrier indexes is illustrated, in a carrier aggregation scenario, it is assumed that there are two downlink carriers, a first downlink carrier DL CC1 and a second downlink carrier DL CC2, two uplink carriers, a first uplink carrier UL CC1 and a second uplink carrier UL CC2, in a downlink, SRS resource sets corresponding to the DL CC1 are configured by a higher layer, aperiodic SRS transmission is triggered by the DL CC1, and an uplink carrier index, for example, UL CC1, of each SRS resource set is configured. The SRS resource set corresponding to the DL CC2 is used for aperiodic SRS transmission triggered by the DL CC2, and an uplink carrier index of each SRS resource set, for example, UL CC2, is configured.

As described above, after receiving the trigger signaling of the DL CC1, the terminal sends the SRS resource with a slot offset K1, in this embodiment, the slot offset of the aperiodic SRS resource triggered by the DL CC1 sent by the terminal is K1, and the slot offset of the aperiodic SRS resource triggered by the DL CC2 sent by the terminal is K2.

TABLE 1 SRS resource trigger signaling indication mode included in downlink control signaling

Value taking	Trigger command
		00	Do not trigger
01	Triggering a first SRS resource set and uplink carrier index
		10	Triggering a second SRS resource set and uplink carrier index
11	Triggering a third SRS resource set and uplink carrier index

As shown in fig. 1 (d), it is assumed that the terminal receives the DCI of the carrier DL CC1 to trigger the SRS resource signaling value to be "01", the corresponding SRS resource set SRS first resource set, and it is assumed that the terminal receives the DCI of the carrier DL CC2 to trigger the SRS resource signaling value to be "01", the corresponding SRS resource set SRS second resource set, where an uplink carrier index corresponding to the SRS first resource set is UL CC1, an uplink carrier index corresponding to the SRS second resource set is UL CC2, the terminal triggers to transmit the SRS first resource set in the K1 offset slot of the UL CC1, and the terminal triggers to transmit the SRS second resource set in the K2 offset slot of the UL CC2.

Preferably, the downlink control signaling includes a timeslot offset adjustment value corresponding to each carrier. At this time, a carrier for transmitting the uplink SRS pilot may be further configured through the downlink control signaling, and the terminal transmits the aperiodic SRS in a time slot corresponding to the configured carrier and the carrier-specific time slot offset.

Fig. 1 (e) illustrates an embodiment that the downlink control signaling includes a slot offset adjustment value, where an SRS resource triggered by the downlink carrier includes a slot offset adjustment value corresponding to a triggered uplink carrier. Further preferably, the slot offset of the first uplink carrier triggered by the SRS resource triggered by the downlink carrier is different from the slot offset adjustment value of the second uplink carrier.

In a carrier aggregation scenario, it is assumed that a downlink includes two carriers, a first downlink carrier DL CC1 and a second downlink carrier DL CC2, two uplink carriers, a first uplink carrier UL CC1 and a second uplink carrier UL CC2, an SRS resource set corresponding to the DL CC1 is configured by a high layer for aperiodic SRS transmission triggered by the DL CC1, and an uplink carrier index of each SRS resource set, for example, the UL CC1, is configured, and slot offset adjustment values corresponding to different uplink carrier indexes are different, for example, the slot offset adjustment value corresponding to the UL CC1 is T1. The SRS resource sets corresponding to the DL CC2 are used for aperiodic SRS transmission triggered by the DL CC2 carrier, and an uplink carrier index of each SRS resource set, for example, UL CC2, is configured, and slot offset adjustment values corresponding to different uplink carrier indexes are different, for example, a slot offset adjustment value corresponding to UL CC2 is T2.

As described above, after receiving the trigger signaling of the DL CC1, the terminal sends the timeslot offset of SRS resource configuration to K1, and with reference to this embodiment, the timeslot offset of the aperiodic SRS resource triggered by the terminal first downlink carrier DL CC1 is K1+ T1, and the timeslot offset of the aperiodic SRS resource triggered by the terminal sending the second downlink carrier DL CC2 is K2+ T2.

As shown in fig. 1 (e), it is assumed that the terminal receives DL DCI triggering SRS resource signaling value of "01" of a first downlink carrier CC1, the corresponding SRS resource set is SRS first resource set (SRS set 1), it is assumed that the terminal receives DL DCI triggering SRS resource signaling value of "01" of a second downlink carrier CC2, the corresponding SRS resource set is SRS second resource set (SRS set 2), where an uplink carrier index corresponding to SRS set1 is UL CC1, an uplink carrier index corresponding to SRS set2 is UL CC2, the terminal transmits a non-triggering SRS on SRS set1 on a K1+ T1 offset slot of UL CC1, and the terminal transmits a non-triggering SRS on SRS set2 on a K2+ T2 offset slot of wave UL CC2.

And 103, transmitting the uplink SRS pilot frequency in at least one time slot represented by the uplink carrier wave and the time slot offset.

Due to the fact that the non-periodic SRS pilot frequency can be triggered in the multiple serving cells, the terminal device sends the SRS pilot frequency on at least one uplink carrier and at least one time slot indicated by the time slot offset related to the multiple downlink carriers, and the network device receives the SRS pilot frequency on the uplink carrier and the time slot in parallel.

Fig. 2 is a flowchart of an embodiment of a method of the present application for a network device.

The method according to any one of the embodiments of the first aspect of the present application, for a network device, includes the following steps 201 to 204:

step 201, receiving or generating the high layer signaling, and determining a plurality of downlink carrier indexes, at least 1 uplink carrier index, and a time slot offset associated with each downlink carrier.

Step 202, sending the high-level signaling to a terminal device, for configuring an aperiodic SRS pilot resource, where the high-level signaling includes indexes of multiple downlink carriers, indexes of at least 1 uplink carrier, and a time slot offset associated with each downlink carrier.

Step 203, generating or sending the downlink control signaling.

And activating the high-level signaling configuration through the downlink control signaling carried by the downlink carrier.

Further, the SRS resource triggered by the downlink control signaling includes an index of an uplink carrier; preferably, the downlink control signaling includes a timeslot offset adjustment value corresponding to each carrier.

And step 204, receiving the uplink SRS pilot frequency in parallel in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

Each slot offset for at least one uplink carrier.

When only one uplink carrier exists, each time slot in the uplink carrier is offset by the indicated time slot, and the uplink SRS pilot frequency is received in parallel.

When a plurality of uplink carriers are activated, each uplink carrier corresponds to at least one time slot offset, and the uplink SRS pilot frequency is received in parallel in the plurality of uplink carriers and the information indicated by the corresponding time slot offset in each uplink carrier.

Fig. 3 is a flowchart of an embodiment of the method of the present application, applied to a terminal device.

301, receiving and identifying the high layer signaling;

the terminal equipment determines the index and the time slot offset value of the downlink carrier and/or the uplink carrier according to the high-level signaling;

step 302, receiving and identifying the downlink control signaling;

and the terminal equipment determines the activated uplink carrier index, the time slot offset and the time slot offset adjustment value according to the downlink control signaling, and further determines the carrier and the time slot for transmitting the uplink SRS pilot frequency.

And 303, sending an uplink SRS pilot frequency in at least one SRS resource set in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

And the terminal equipment transmits the uplink SRS pilot frequency on the activated at least one carrier.

Fig. 4 is a schematic diagram of an embodiment of a network device.

An embodiment of the present application further provides a network device, where, using the method in any embodiment of the present application, the network device is configured to: receiving, generating or sending the high-level signaling; generating or sending the downlink control signaling; and receiving the uplink SRS pilot frequency in parallel at the time slot indicated by the uplink carrier wave and a plurality of time slot offsets.

In order to implement the foregoing technical solution, the network device 400 provided in this application includes a network sending module 401, a network determining module 402, and a network receiving module 403.

And the network sending module is used for sending the high-level signaling and/or the downlink control signaling.

The network determining module is used for determining the index of the downlink carrier, the index of the uplink carrier, the time slot offset and the adjusting value.

And the network receiving module is used for receiving the uplink SRS pilot frequency in parallel in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

The specific method for implementing the functions of the network sending module, the network determining module, and the network receiving module is described in the embodiments of the methods of the present application, and is not described herein again.

Fig. 5 is a schematic diagram of an embodiment of a terminal device.

The present application further provides a terminal device, which uses the method of any one of the embodiments of the present application, and is configured to: receiving and identifying the higher layer signaling; receiving and identifying the downlink control signaling; and transmitting an uplink SRS pilot frequency in at least one SRS resource set in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

In order to implement the foregoing technical solution, the terminal device 500 provided in the present application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503.

And the terminal receiving module is used for receiving the high-level signaling and/or the downlink control signaling.

The terminal determining module is used for determining the index of the downlink carrier, the index of the uplink carrier and the time slot offset value according to the high-level signaling; and the uplink control signal is used for determining the activated uplink carrier index and the time slot offset adjustment value according to the downlink control signal, and further determining the carrier and the time slot for sending the uplink SRS pilot frequency.

And the terminal sending module is used for sending the uplink SRS pilot frequency on the activated carrier.

The specific method for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module is as described in the method embodiments of the present application, and is not described herein again.

The terminal equipment can be mobile terminal equipment.

Fig. 6 shows a schematic structural diagram of a network device according to another embodiment of the present invention. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. including a transmitter and a receiver, providing means for communicating with various other apparatus over a transmission medium. The wireless interface implements a communication function with the terminal device, and processes wireless signals through the receiving and transmitting devices, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program that executes any of the embodiments of the present application, running or changed on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described herein.

Fig. 7 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 700 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the terminal device 700 are coupled together by a bus system. A bus system is used to enable connection communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen, among others.

The memory 702 stores executable modules or data structures. The memory may have stored therein an operating system and an application program. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, and the like for implementing various application services.

In the embodiment of the present invention, the memory 702 contains a computer program for executing any of the embodiments of the present application, and the computer program runs or changes on the processor 701.

The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and combines the hardware to complete the steps of the above-described method. In particular, the computer-readable storage medium has stored thereon a computer program which, when being executed by the processor 701, carries out the steps of the method embodiments as described above with reference to any of the embodiments.

The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be implemented by hardware integrated logic circuits in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In a typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and a memory.

Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application therefore also proposes a computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application. For example, the

memory

603, 702 of the present invention may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM).

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

Based on the embodiments of fig. 4 to 7, the present application further provides a mobile communication system, which includes at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises that element.

It should be noted that the terms "first", "second", and "third" in the present application are used to distinguish a plurality of objects having the same name, and have no other special meaning unless otherwise specified.

The "at least one" in the present document may be the following case: "one", "a plurality (i.e., two or more)" or "all".

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An uplink SRS pilot transmission method, which is used in the case of carrier aggregation, is characterized by comprising the following steps:

configuring indexes of a plurality of downlink carriers and indexes of at least 1 uplink carrier through high-level signaling, and time slot offset related to each downlink carrier; the time slot offset is used for determining the time slot for sending the uplink SRS according to the time slot for receiving the downlink control signaling;

the high-level signaling configures an SRS resource set associated with each downlink carrier, wherein the SRS resource set is used for transmitting uplink SRS pilot frequency;

activating the configuration of the high-level signaling through a downlink control signaling carried by a downlink carrier; the downlink carrier comprises a first downlink carrier and a second downlink carrier; the time slot offset values corresponding to the first downlink carrier and the second downlink carrier are different; in the SRS resource sets associated with the first downlink carrier and the second downlink carrier, the value of at least one parameter is different;

the SRS resource triggered by the downlink control signaling comprises an index of an uplink carrier, and each time slot offset is used for at least one uplink carrier; and the time slot indicated by the time slot offset corresponding to each downlink carrier is used for transmitting the uplink SRS pilot frequency.

2. The method of claim 1,

the high-level signaling configures indexes of a plurality of uplink carriers;

the SRS resource triggered by the downlink control signaling comprises an index of an uplink carrier;

each slot offset for at least one uplink carrier.

3. The method of claim 1,

the downlink control signaling comprises a time slot offset adjustment value corresponding to the triggered uplink carrier; and the time slot offset adjustment values corresponding to different uplink carrier indexes are different.

4. A method according to any one of claims 1 to 3, for use in a network device, comprising the steps of:

generating or sending the downlink control signaling;

5. A method according to any one of claims 1 to 3, for use in a terminal device, comprising the steps of:

receiving and identifying the higher layer signaling;

receiving and identifying the downlink control signaling;

and transmitting the uplink SRS pilot frequency in at least one SRS resource set in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

6. A network device for implementing the method of any one of claims 1 to 4,

the network equipment comprises a network sending module, a network determining module and a network receiving module,

the network determining module is used for determining the index of the downlink carrier, the index of the uplink carrier and the time slot offset;

the network sending module is used for sending the high-level signaling and the downlink control signaling;

7. A terminal device for implementing the method of any one of claims 1 to 3 or 5,

the terminal equipment comprises a terminal sending module, a terminal determining module and a terminal receiving module,

the terminal receiving module is used for receiving the high-level signaling and the downlink control signaling;

the terminal determining module is used for determining the index of the downlink carrier, the index of the uplink carrier and the time slot offset value according to the high-level signaling; further, determining a carrier and a time slot for transmitting the uplink SRS pilot frequency;

and the terminal sending module is used for sending the uplink SRS pilot frequency in at least one SRS resource set in the time slot indicated by the uplink carrier wave and the plurality of time slot offsets.

8. A communication device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 5.

9. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.

10. A mobile communication system comprising at least one network device according to claim 6 and/or at least one terminal device according to claim 7.