CN108809560B

CN108809560B - Configuration method of pre-demodulation reference signal, network side equipment and terminal

Info

Publication number: CN108809560B
Application number: CN201710296845.3A
Authority: CN
Inventors: 孙晓东; 姜蕾; 沈晓冬
Original assignee: Vivo Software Technology Co Ltd
Current assignee: Vivo Software Technology Co Ltd
Priority date: 2017-04-28
Filing date: 2017-04-28
Publication date: 2021-03-16
Anticipated expiration: 2037-04-28
Also published as: CN108809560A

Abstract

The invention provides a configuration method of a preposed demodulation reference signal, network side equipment and a terminal, wherein the method comprises the following steps: the network side equipment generates configuration information of the pre-demodulation reference signal and sends the configuration information of the pre-demodulation reference signal to the terminal, wherein the configuration information of the pre-demodulation reference signal is used for indicating resource information occupied by the pre-demodulation reference signal in time slot aggregation. Therefore, under the time slot aggregation scene, the network side equipment can flexibly configure the resources occupied by the pre-demodulation reference signal according to actual data transmission, and then the network side equipment indicates the resource information occupied by the pre-demodulation reference signal in the time slot aggregation to the terminal, so that the terminal sends or receives the pre-demodulation reference signal according to the indication of the network side equipment, the resources are better utilized according to actual conditions, and the resource utilization rate and the data transmission rate are improved.

Description

Configuration method of pre-demodulation reference signal, network side equipment and terminal

Technical Field

The present invention relates to wireless communication technologies, and in particular, to a method for configuring a preamble demodulation reference signal, a network side device, and a terminal.

Background

In a Long Term Evolution (LTE) system, Demodulation Reference Signal (DMRS) needs to be transmitted for channel estimation and Demodulation of a traffic channel, a control channel, and a broadcast channel.

Optionally, resources, such as time domain resources, antenna ports, and the like, need to be occupied in the process of transmitting the DMRS by the transmitting end. The receiving end of the DMRS also needs to confirm the resource occupied by the transmitting end to transmit the DMRS, so as to receive the DMRS in the corresponding resource, and therefore, both the transmitting end and the receiving end need to specify the resource occupied by the DMRS.

In the prior art, for a single timeslot, the resource location for transmitting or receiving the DMRS is fixed, that is, the DMRS may be transmitted or received according to the fixed resource location. However, in a slot aggregation scenario in a fifth-generation mobile communication system in the future, resource occupation in each slot is more flexible, and if the DMRS continues to use the existing method of occupying fixed resources in the slot, resource waste may be caused.

Disclosure of Invention

The embodiment of the invention provides a configuration method of a preposed demodulation reference signal, network side equipment and a terminal, which are used for providing a method for determining resources occupied by a preposed DMRS under a time slot aggregation scene.

A first aspect of an embodiment of the present invention provides a method for configuring a pre-demodulation reference signal, including:

the method comprises the steps that network side equipment generates pre-demodulation reference signal configuration information, wherein the pre-demodulation reference signal configuration information is used for indicating resource information occupied by a pre-demodulation reference signal in time slot aggregation;

and the network side equipment sends the configuration information of the preposed demodulation reference signal to a terminal.

A second aspect of the embodiments of the present invention provides a method for configuring a pre-demodulation reference signal, including:

a terminal receives configuration information of a pre-demodulation reference signal sent by network side equipment, wherein the configuration information of the pre-demodulation reference signal is used for indicating resource information occupied by the pre-demodulation reference signal in time slot aggregation;

and the terminal determines the resource information occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information.

A third aspect of the embodiments of the present invention provides a network side device, including:

the device comprises a generating module, a transmitting module and a receiving module, wherein the generating module is used for generating configuration information of a pre-demodulation reference signal, and the configuration information of the pre-demodulation reference signal is used for indicating resource information occupied by the pre-demodulation reference signal in time slot aggregation;

and the sending module is used for sending the configuration information of the preposed demodulation reference signal to a terminal.

A fourth aspect of an embodiment of the present invention provides a terminal, including:

the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving configuration information of a pre-demodulation reference signal sent by network side equipment, and the configuration information of the pre-demodulation reference signal is used for indicating resource information occupied by the pre-demodulation reference signal in time slot aggregation;

and the determining module is used for determining the resource information occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information.

A fifth aspect of the present invention provides a network-side device, where the network-side device includes a processor and a memory, where the memory is used to store a program, and the processor calls the program stored in the memory to execute the method provided in the first aspect of the present invention.

A sixth aspect of the present embodiment provides a terminal, where the terminal includes a processor and a memory, where the memory is used to store a program, and the processor calls the program stored in the memory to execute the method provided in the second aspect of the present embodiment.

A seventh aspect of the present embodiments provides a network side device, including at least one processing element (or chip) configured to perform the method of the first aspect.

An eighth aspect of embodiments of the present invention provides a terminal, including at least one processing element (or chip) for performing the method of the second aspect above.

A ninth aspect of embodiments of the present invention provides a program that, when executed by a processor, is configured to perform the method of the first aspect.

A tenth aspect of embodiments of the present invention provides a program product, such as a computer-readable storage medium, including the program of the ninth aspect.

An eleventh aspect of embodiments of the present invention provides a program which, when executed by a processor, is configured to perform the method of the second aspect above.

A twelfth aspect of an embodiment of the present invention provides a program product, such as a computer-readable storage medium, including the program of the eleventh aspect.

A thirteenth aspect of embodiments of the present invention provides a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform the method for configuring a pre-demodulation reference signal according to the first aspect.

A fourteenth aspect of embodiments of the present invention provides a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform the method for configuring a pre-demodulation reference signal according to the second aspect.

In the method, the network side device and the terminal for configuring the pre-demodulation reference signal provided by the embodiment of the invention, the network side device generates pre-demodulation reference signal configuration information and sends the pre-demodulation reference signal configuration information to the terminal, wherein the pre-demodulation reference signal configuration information is used for indicating resource information occupied by the pre-demodulation reference signal in time slot aggregation. Therefore, under the time slot aggregation scene, the network side device can flexibly configure the resources occupied by the pre-demodulation reference signals according to actual data transmission, and then the network side device indicates the resource information occupied by the pre-demodulation reference signals of the time slots in the time slot aggregation to the terminal, so that the terminal sends or receives the pre-demodulation reference signals according to the indication of the network side device, resources are better utilized according to actual conditions, and the resource utilization rate and the data transmission rate are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic system architecture diagram of a method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a timeslot aggregation scenario in a method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating a method for configuring a pre-demodulation reference signal according to another embodiment of the present invention;

fig. 5 is a schematic diagram of another timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 6 is a schematic diagram of another time slot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a further timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 8 is a schematic diagram of another timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 9 is a schematic diagram of another timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a network-side device according to another embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of embodiments of the present invention, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic system architecture diagram of a method for configuring a pre-demodulation reference signal according to an embodiment of the present invention, as shown in fig. 1, the system includes: network side device 01 and terminal 02.

The network side device 01 may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (evolved Node B, eNB or eNodeB) in LTE, a relay Station or Access point, or a Base Station in a future 5G network, and the like, which are not limited herein.

Terminal 02 can be a wireless terminal, which can be a device that provides voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem, or can be a wired terminal. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

In a future 5G (5th Generation) Mobile Communication system, in order to support multiple services such as Mobile Broadband enhancement (eMBB), Ultra-high Reliable Ultra-Low latency Communication (URLLC), and the like, a Front-loaded DMRS is introduced, and time domain resources occupied by the Front-loaded DMRS are earlier in time than demodulation reference signals in existing 3G and 4G, which mainly aims to realize early data demodulation. In the existing single slot scenario, the slot resources occupied by the Front-loaded DMRSs in the slot are fixed, for example, the 3 rd and 4 th time domain symbols in the single slot are occupied, and when the terminal transmits or receives the Front-loaded DMRSs, the default Front-loaded DMRSs occupy the 3 rd and 4 th time domain symbols in the slot. However, the embodiment of the invention provides a transmission mode of the Front-loaded DMRS in the time slot aggregation scene based on the time slot aggregation scene, so that the resource occupation of the Front-loaded DMRS is more flexible, and the resource utilization rate is improved.

Fig. 2 is a schematic view of a time slot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention. As shown in fig. 2, take 3 slot aggregations (slot0, slot1, slot2) as an example, where each column represents one time domain symbol. It should be noted that, in the drawings of the embodiments of the present invention, each time slot includes 14 time domain symbols, but not limited to this, each time slot may include 7 time domain symbols or other numbers of time domain symbols.

In an existing single timeslot, each timeslot may be allocated a certain time domain resource as a Downlink Control domain, so that a network side device transmits Downlink Control information using the Downlink Control domain, for example, transmits the Downlink Control information through a New Radio Physical Downlink Control Channel (NR PDCCH for short). And after receiving the data sent by each time slot, the terminal respectively processes the data.

Under the time slot aggregation scene, the terminal can receive the data sent by a plurality of aggregation time slots and then process the data in a unified way. Specifically, referring to fig. 2, in the 3 timeslots, a downlink control domain may be configured for the 1 st timeslot (slot0), and the other timeslots may not be configured with the downlink control domain, but not limited to this, it may be determined whether the timeslots other than the 1 st timeslot require the downlink control domain according to an actual situation. In the following embodiments, the resource occupation of the preamble demodulation reference signal in each time slot is specifically described.

Fig. 3 is a schematic flow chart of a method for configuring a pre-demodulation reference signal according to an embodiment of the present invention, where the embodiment uses a network side device as an execution main body. As shown in fig. 3, the method includes:

s301, the network side equipment generates configuration information of the pre-demodulation reference signal, wherein the configuration information of the pre-demodulation reference signal is used for indicating resource information occupied by the pre-demodulation reference signal in time slot aggregation.

In this embodiment, the network side device determines the resource occupied by the pre-demodulation reference signal in the time slot aggregation.

Optionally, if the time domain resource used for data transmission between the network side device and the terminal is flexibly configurable, for example, each time of data transmission may flexibly use timeslot aggregation or a single timeslot, and the number of timeslots included in timeslot aggregation may also be different, the network side device may configure resource information occupied by the pre-demodulation reference signal in each timeslot of timeslot aggregation used for this time of data transmission, and additionally send the pre-demodulation reference signal configuration information to the terminal before the next time of data transmission. Or, the resource used for data transmission between the network side device and the terminal is fixed, for example, a uniform time slot aggregation scenario (the number of aggregated time slots is the same) is used for data transmission each time, the network side device may send the pre-demodulation reference signal configuration information before the first data transmission after the terminal accesses the network side device, and then both the network side device and the terminal determine the resource information occupied by the pre-demodulation reference signal in each time slot according to the pre-demodulation reference signal configuration information by default.

S302, the network side equipment sends the configuration information of the pre-demodulation reference signal to the terminal.

The network side equipment determines resource information occupied by the pre-demodulation reference signal in the time slot aggregation and indicates the resource information to the terminal, so that under a time slot aggregation scene, the terminal can determine the resource occupied by the pre-demodulation reference signal according to the pre-demodulation reference signal configuration information, and further can process the pre-demodulation reference signal, such as sending and receiving the pre-demodulation reference signal, or demodulating data according to the pre-demodulation reference signal, performing channel estimation and the like.

In this embodiment, the network side device generates pre-demodulation reference signal configuration information and sends the pre-demodulation reference signal configuration information to the terminal, where the pre-demodulation reference signal configuration information is used to indicate resource information occupied by a pre-demodulation reference signal in timeslot aggregation. Therefore, under the time slot aggregation scene, the network side device can flexibly configure the resources occupied by the pre-demodulation reference signal according to actual data transmission, and then the network side device indicates the resource information occupied by the pre-demodulation reference signal in the time slot aggregation to the terminal, so that the terminal sends or receives the pre-demodulation reference signal according to the indication of the network side device, the resources are better utilized according to actual conditions, and the resource utilization rate and the data transmission rate are improved.

Fig. 4 is a schematic flow chart of a method for configuring a pre-demodulation reference signal according to another embodiment of the present invention, and corresponding to fig. 3, an implementation subject of the embodiment is a terminal, as shown in fig. 4, the method includes:

s401, the terminal receives the configuration information of the pre-demodulation reference signal sent by the network side equipment. The configuration information of the pre-demodulation reference signal is used for indicating the resource information occupied by the pre-demodulation reference signal in the time slot aggregation.

S402, the terminal determines the resource information occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information.

Corresponding to the embodiment shown in fig. 3, after receiving the configuration information of the pre-demodulation reference signal, the terminal may determine the resource information occupied by the pre-demodulation reference signal in the timeslot aggregation. And the terminal processes the pre-demodulation reference signal according to the resource information occupied by the pre-demodulation reference signal in the time slot aggregation. For example, when a terminal sends a pre-demodulation reference signal to a network side device, it needs to determine which resources of each timeslot in timeslot aggregation are occupied by the pre-demodulation reference signal for sending; when a terminal receives a preamble demodulation reference signal sent by a network side, it needs to determine which resources in each time slot of time slot aggregation to detect the preamble demodulation reference signal, and the like. Specifically, the terminal may determine which resources of each slot in the slot aggregation are occupied by the preamble demodulation reference signal in combination with the preamble demodulation reference signal configuration information and/or the preset information.

In this embodiment, the terminal receives pre-demodulation reference signal configuration information sent by the network side device, and further determines resource information occupied by the pre-demodulation reference signal in time slot aggregation according to the pre-demodulation reference signal configuration information. Therefore, under the time slot aggregation scene, the network side device can flexibly configure the resources occupied by the pre-demodulation reference signal according to actual data transmission, and then the network side device indicates the resource information occupied by the pre-demodulation reference signal in the time slot aggregation to the terminal, so that the terminal sends or receives the pre-demodulation reference signal according to the indication of the network side device, the resources are better utilized according to actual conditions, and the resource utilization rate and the data transmission rate are improved.

In the technical solution executed by the network side device and the technical solution executed by the terminal, the network side device may indicate the position of the pre-demodulation reference signal in the time slot aggregation based on each characteristic dimension of the resource information, for example, the network side device may indicate the time domain position of the pre-demodulation reference signal, may also indicate the number of antenna ports occupied by the pre-demodulation reference signal, or the network side device may also indicate the time domain position of the pre-demodulation reference signal and the number of antenna ports occupied at the same time, which is not limited in the embodiment of the present invention.

The following embodiments of the present invention take time domain positions and the number of antenna ports as examples to describe technical solutions in detail.

In one implementation manner of indicating the time domain position, the preamble demodulation reference signal configuration information may include: and time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation.

In particular, the time domain position indication information may indicate occupied time domain symbol positions. Optionally, for each slot of the slot aggregation, the terminal needs to occupy one or more time domain symbols when transmitting the pre-demodulation reference signal. For example, the time domain position indication information directly indicates the identifier of the time domain symbol occupied by the pre-demodulation reference signal in the time slot, such as the 3 rd time domain symbol and the 4 th time domain symbol occupying the 1 st time slot; or, the time domain position indication information indicates the starting position of the time domain symbol occupied by the pre-demodulation reference signal in the time slot, such as starting from the 3 rd time domain symbol of the 1 st time slot, and then the terminal may determine the number of the time domain symbols to be occupied according to other parameters, for example, the number of antenna ports occupied by the pre-demodulation reference signal, and may also calculate the 3 rd time domain symbol and the 4 th time domain symbol occupying the 1 st time slot, which is not particularly limited in the embodiment of the present invention.

And the terminal can determine the time domain position occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information.

For this implementation of indicating the time domain position, in a specific implementation, the following optional implementations may be adopted:

for example, the time domain position is respectively indicated for each time slot in the time slot aggregation, that is, the identifier of each time slot in the time slot aggregation can be respectively carried in the pre-demodulation reference signal configuration information, and the time domain position occupied by the pre-demodulation reference signal in each time slot is indicated. In this way, the time domain position occupied by the pre-demodulation reference signal in each time slot can be flexibly configured.

Or, in some scenarios, the time domain positions occupied by the pre-demodulation reference signals in the other time slots except the 1 st time slot are the same, so that the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot and the time domain positions occupied by the pre-demodulation reference signals in the other time slots can also be indicated. This approach may reduce resource overhead. Specifically, the configuration information of the pre-demodulation reference signal carries the identifier of the 1 st time slot and the corresponding time domain position identifier, and in addition, other time slots except the 1 st time slot may adopt a unified identifier, that is, the configuration information of the pre-demodulation reference signal carries the unified identifier and the corresponding time domain position identifier.

The time domain position occupied by the pre-demodulation reference signal can also be indicated by other parameters, for example, the time domain symbol offset, in this way, a reference position can be indicated first, and then the offset between the time domain position occupied by the pre-demodulation reference signal and the reference position in other indications can be indicated, so that the terminal can determine the time domain position occupied by the pre-demodulation reference signal according to the reference position and the offset.

The indication of the time domain position is explained in detail in the following embodiments:

in one embodiment:

the slot aggregation includes N slots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: and time domain position indication information respectively corresponding to each time slot in the N time slots of the time slot aggregation. And the time domain position indication information corresponding to each time slot is used for indicating the time domain position of the pre-demodulation reference signal in the time slot.

In this embodiment, the network side device respectively indicates the time domain positions occupied by the preamble demodulation reference signals in the N time slots of the time slot aggregation. That is, the pre-demodulation reference signal configuration information includes N specific time domain position indication information, and optionally, the pre-demodulation reference signal configuration information includes N time slot identifiers, each time slot identifier corresponds to one time domain position indication information, and the time domain position indication information is used to indicate a time domain position occupied by the pre-demodulation reference signal in the corresponding time slot. Correspondingly, the terminal respectively determines the time domain position occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation in the time slot according to the time domain position indication information corresponding to each time slot of the N time slots of the time slot aggregation.

Fig. 5 is a schematic diagram of another timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention. Taking 2 slots shown in fig. 5 as an example, the pre-demodulation reference signal configuration information includes time domain position indication information corresponding to the 2 slots, respectively, so as to indicate: the preamble demodulation reference signal in slot0 occupies the 3 rd and 4 th time domain symbols, and the preamble demodulation reference signal in slot1 occupies the 1 st and 2 nd time domain symbols.

In this embodiment, the network side device may respectively configure the time domain positions occupied by the preamble demodulation reference signals in the N time slots of the time slot aggregation according to specific data transmission needs, for example, whether a downlink control domain exists in each time slot of the time slot aggregation, the size of data to be transmitted, and the like, so that the data transmission needs can be more flexibly met.

Optionally, in another embodiment:

the slot aggregation includes N slots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: initial position indication information and offset indication information.

And the initial position indication information is used for indicating the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation.

For the offset indication information, in one scheme: and the offset is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot. In specific implementation, the offsets corresponding to the 2 nd time slot to the nth time slot may be different or the same, and if the offsets are the same, the pre-demodulation reference signal configuration information may be uniformly indicated by only one value; if the values are different, the configuration information of the pre-demodulation reference signal may also indicate that each timeslot correspondingly carries a value.

Then, the terminal may respectively calculate the time domain positions occupied by the pre-demodulation reference signals of each of the 2 nd to nth time slots according to the offset indication information and the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot.

For example, the terminal determines the time domain position occupied by the preamble demodulation reference signal in the timeslot aggregation according to the preamble demodulation reference signal configuration information, which may be: and the terminal determines the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation according to the initial position indication information. Then, the terminal may respectively determine the time domain positions occupied by the pre-demodulation reference signals of each of the 2 nd to nth time slots according to the offset of the time domain position occupied by the pre-demodulation reference signal of each of the 2 nd to nth time slots with respect to the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot. Optionally, the N-1 time domain position values are independent from each other, and the terminal may acquire the time domain position values at the same time or at different times.

In another scheme, the offset indication information is used to indicate offsets of time domain positions occupied by the pre-demodulation reference signals of each of the 2 nd to nth slots of the slot aggregation with respect to time domain positions occupied by the pre-demodulation reference signals in the previous slot of the slot. The time domain positions occupied by the pre-demodulation reference signals of each time slot from the 2 nd time slot to the Nth time slot can be the same or different with respect to the offset of the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot, and if the offset is the same, the pre-demodulation reference signal configuration information can be uniformly indicated by only one value; if the values are different, the configuration information of the pre-demodulation reference signal may also indicate that each timeslot correspondingly carries a value.

In the scheme, the terminal determines the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation according to the initial position indication information; and for the 2 nd time slot to the nth time slot, the terminal determines the time domain position occupied by the pre-demodulation reference signal from the m +1 th time slot to the pre-demodulation reference signal according to the time domain position occupied by the pre-demodulation reference signal from the mth time slot and the offset of the pre-demodulation reference signal from the m +1 th time slot relative to the time domain position occupied by the pre-demodulation reference signal from the mth time slot. Wherein m is more than or equal to 1 and less than N.

Specifically, the time domain position occupied by the pre-demodulation reference signal of the 2 nd time slot can be determined according to the offset of the time domain position occupied by the pre-demodulation reference signal of the 2 nd time slot relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot. And then, according to the offset of the time domain position occupied by the pre-demodulation reference signal of the 3 rd time slot relative to the time domain position occupied by the pre-demodulation reference signal in the 2 nd time slot and the time domain position occupied by the pre-demodulation reference signal in the 2 nd time slot, the time domain position occupied by the pre-demodulation reference signal of the 3 rd time slot can be determined, and so on, and the description is omitted.

Taking fig. 5 as an example, for example, the initial position indication information indicates that the time domain positions occupied by the pre-demodulation reference signal in the 1 st slot are the 3 rd time domain symbol and the 4 th time domain symbol. The offset indicating information is that 2 time domain symbols are shifted forward relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot, and the time domain position occupied by the pre-demodulation reference signal in the 2 nd time slot can be calculated to be the 1 st time domain symbol and the second time domain symbol.

In this embodiment, the network side device indicates the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot, and then indicates the offset of the time domain position occupied by the pre-demodulation reference signal in other time slots with the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot as a reference, so that the terminal determines the time domain position occupied by the pre-demodulation reference signal in each time slot according to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot and the offset, and the resource overhead of the pre-demodulation reference signal configuration information can be reduced.

Optionally, in a further embodiment:

the slot aggregation includes N slots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: offset indicating information.

In this embodiment, a time domain position occupied by the pre-demodulation reference signal in the 1 st timeslot of the timeslot aggregation is a preset position. Taking fig. 5 as an example, the time domain positions occupied by the pre-demodulation reference signals in the 1 st time slot are both defaulted to the 3 rd time domain symbol and the 4 th time domain symbol by the terminal and the base station, no special indication is needed, and for the time domain positions occupied by the pre-demodulation reference signals in each of the 2 nd time slot to the nth time slot, the offset is indicated, so that the resources can be saved.

Similarly to the foregoing embodiment, in one scheme, the offset indication information is used to indicate an offset of a time domain position occupied by the pre-demodulation reference signal of each of the 2 nd to nth slots of the slot aggregation with respect to a time domain position occupied by the pre-demodulation reference signal in the 1 st slot. The terminal may determine the time domain positions occupied by the pre-demodulation reference signals of each of the 2 nd to nth time slots respectively according to the offset of the time domain position occupied by the pre-demodulation reference signal of each of the 2 nd to nth time slots with respect to the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot.

Or, in another scheme, the offset indicating information is used to indicate offsets of time domain positions occupied by the pre-demodulation reference signals of each of the 2 nd to nth slots of the slot aggregation with respect to time domain positions occupied by the pre-demodulation reference signals in the previous slot of the slot. For the 2 nd time slot to the nth time slot, the terminal determines the time domain position occupied by the pre-demodulation reference signal from the m +1 th time slot to the pre-demodulation reference signal according to the time domain position occupied by the pre-demodulation reference signal from the m-th time slot and the offset of the pre-demodulation reference signal from the m +1 th time slot relative to the time domain position occupied by the pre-demodulation reference signal from the m-th time slot. Wherein m is more than or equal to 1 and less than N.

In this embodiment, the network side device indicates the offset of the time domain position occupied by the pre-demodulation reference signal in the other time slots by using the time domain position occupied by the pre-demodulation reference signal in the preset 1 st time slot as a reference, and the terminal determines the time domain position occupied by the pre-demodulation reference signal in each time slot according to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot and the offset, so that the resource overhead of the configuration information of the pre-demodulation reference signal can be reduced.

It should be noted that the offset indication information of the above embodiment may indicate that n time domain symbols are shifted forward or n time domain symbols are shifted backward, where n is an integer greater than 0. For example, without limitation, n may be used to identify a forward offset by n time domain symbols and + n may be used to identify a backward offset by n time domain symbols.

In summary, in the above embodiments, in the 2 nd time slot to the nth time slot, the downlink control domain may not be needed, or the time domain resources occupied by the downlink control domain are reduced, so that the pre-demodulation reference signal may occupy the resources occupied by the existing downlink control domain through the offset, and thus the resources originally used for transmitting the pre-demodulation reference signal may be used for transmitting data, so that the resource utilization rate is improved, and the downlink data transmission rate may also be improved. For example, in the 2 nd slot of fig. 5, the preamble demodulation reference signal can be transmitted from the 1 st time domain symbol, and then all the following time domain symbols can be used to transmit data.

Further, on the basis of the foregoing embodiment, the preamble demodulation reference signal configuration information may include: and antenna port indication information occupied by the pre-demodulation reference signal in the time slot aggregation.

When the pre-demodulation reference signal configuration information includes the antenna port indication information occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation in the time slot, the terminal determines the resource information occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation according to the pre-demodulation reference signal configuration information, which may be that the terminal determines the antenna port occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation in the time slot according to the pre-demodulation reference signal configuration information.

Fig. 6 is a schematic diagram of another time slot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention.

It should be noted that the number of antenna ports that the pre-demodulation reference signal needs to occupy in each time slot may be the same or different. In addition, the number of antenna ports that need to be occupied by the pre-demodulation reference signal in different application scenarios may also be different, for example, the number of antenna ports that need to be occupied in a high-speed transmission scenario is greater than the number of antenna ports that need to be occupied in a low-speed transmission scenario.

Optionally, when the slot aggregation includes N slots, where N is an integer greater than 1. The antenna port occupied by the preamble demodulation reference signal in the 1 st time slot may be the same as or different from the antenna port occupied by the preamble demodulation reference signal in the 2 nd to nth time slots. As shown in fig. 6, the preamble demodulation reference signals of each of the N slots occupy 8 antenna ports.

Specifically, (1) the number of the antenna ports occupied by the preamble demodulation reference signal in the 1 st time slot may be the same as the number of the antenna ports occupied by the preamble demodulation reference signal in the 2 nd time slot to the nth time slot. (2) The number of the antenna ports occupied by the pre-demodulation reference signal in the 1 st time slot may be different from the number of the antenna ports occupied by the pre-demodulation reference signal in the 2 nd time slot to the nth time slot. (3) The number of the antenna ports occupied by the pre-demodulation reference signal in the 1 st time slot may be different from the number of the antenna ports occupied by the pre-demodulation reference signal in the 2 nd time slot to the nth time slot.

For the case (1), the configuration information of the pre-demodulation reference signal only needs to carry one antenna port indication information to indicate the antenna port indication information occupied by the pre-demodulation reference signal in each timeslot of the timeslot aggregation in the timeslot. Taking fig. 6 as an example, the preamble demodulation reference signal configuration information may collectively indicate that the preamble demodulation reference signal occupies antenna ports 0 to 7 in each time slot.

In the embodiment shown in fig. 6, the preamble demodulation reference signal configuration information may include: time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation in the time slot, and antenna port indication information occupied by the pre-demodulation reference signal in the time slot aggregation. It is assumed that two groups of antenna ports supporting different codes are used in each time slot to transmit the same time domain resource transmission pre-demodulation reference signal: one code is OCC-0, wherein an antenna port supporting OCC-0 comprises: port0, port2, port4, port 6. Another code is denoted as OCC-1, where an antenna port supporting OCC-1 includes: port1, port3, port5, port 7. In the 1 st slot, the preamble demodulation reference signal starts from the 3 rd time domain symbol and occupies antenna ports 0 to 7, i.e., "port 0, port2, port4, port 6", and "port 1, port3, port5, and port 7", which multiplex the 3 rd time domain symbol and the 4 th time domain symbol. In the 2 nd slot, the preamble demodulation reference signal is shifted forward by 2 time domain symbols relative to the time domain position occupied in the 1 st slot, that is, the preamble demodulation reference signal starts with the 1 st time domain symbol and occupies antenna ports 0 to 7, and it can be seen that "port 0, port2, port4, port 6" and "port 1, port3, port5, and port 7" multiplex the 1 st time domain symbol and the 2 nd time domain symbol. For convenience of viewing in fig. 6, the time slots corresponding to "port 0, port2, port4, and port 6" are shifted in position from the time slots corresponding to "port 1, port3, port5, and port 7", and are actually the same time slots.

For (2) and (3), the configuration information of the pre-demodulation reference signal may respectively indicate the antenna port information occupied by the pre-demodulation reference signal in the 1 st time slot and the antenna port information occupied by the pre-demodulation reference signal in the 2 nd to nth time slots. For example: the occupied antenna port indication information comprises: the first antenna port occupation indication information indicates antenna port information occupied by a preposed demodulation reference signal in the 1 st time slot; the second antenna port occupation indication information indicates antenna port information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation. It should be noted that, if the antenna port information occupied by the pre-demodulation reference signal in the 1 st timeslot is a preset value, the occupied antenna port indication information may only include the second antenna port occupation indication information. Similarly, if the antenna port information occupied by the preamble demodulation reference signal in the 2 nd to nth slots is a preset value, the occupied antenna port indication information may only include the first antenna port occupation indication information. Of course, the occupied antenna port indication information may also include the occupied antenna port indication information and the second antenna port occupation indication information at the same time, which is not limited in the embodiment of the present invention.

In this embodiment, the network side can flexibly configure the antenna ports that need to be occupied by the pre-demodulation reference signals in each time slot according to the data transmission requirements, so that the occupation of the antenna ports is reduced as much as possible on the basis of ensuring the data transmission, and the resource utilization rate is improved.

Alternatively, the antenna ports occupied by the preamble demodulation reference signal in the 2 nd to nth slots may be a subset of the antenna ports occupied by the preamble demodulation reference signal in the 1 st slot. In this embodiment, the number of antenna ports occupied by the pre-demodulation reference signal is reduced, and the resource utilization rate can also be improved.

Based on the foregoing embodiments, in some scenarios, the time domain resources occupied by the pre-demodulation reference signals in the 2 nd to nth slots are offset from the pre-demodulation reference signals in the 1 st slot, and the occupied antenna ports may be a subset of the antenna ports occupied by the pre-demodulation reference signals in the 1 st slot. Or, in some scenarios, the time domain resources occupied by the preamble demodulation reference signals in the N time slots are all the same (may be all preset values), but the antenna ports occupied by the preamble demodulation reference signals in the 2 nd time slot to the nth time slot may be a subset of the antenna ports occupied by the preamble demodulation reference signals in the 1 st time slot. Or, in some scenarios, the time domain resources occupied by the pre-demodulation reference signals in the 2 nd to nth slots are offset from the pre-demodulation reference signals in the 1 st slot, but the antenna ports occupied by the pre-demodulation reference signals in the N slots are the same (may be preset values). The embodiments of the present invention are not limited.

Fig. 7 is a schematic diagram of another timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention. Fig. 8 is a schematic diagram of another timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention. Fig. 9 is a schematic diagram of another timeslot aggregation scenario in the method for configuring a pre-demodulation reference signal according to an embodiment of the present invention.

As shown in fig. 7, the preamble demodulation reference signal configuration information may include: time domain position indication information occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation in the time slot, and antenna port indication information occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation in the time slot. It is assumed that two groups of antenna ports supporting different codes are used in each time slot to transmit the same time domain resource transmission pre-demodulation reference signal: one code is OCC-0, wherein an antenna port supporting OCC-0 comprises: port0, port2, port4, port 6. Another code is denoted as OCC-1, where an antenna port supporting OCC-1 includes: port1, port3, port5, port 7. In the 1 st slot, the preamble demodulation reference signal starts from the 3 rd time domain symbol and occupies antenna ports 0 to 7, i.e., "port 0, port2, port4, port 6", and "port 1, port3, port5, and port 7", which multiplex the 3 rd time domain symbol and the 4 th time domain symbol. In the 2 nd slot, the preamble demodulation reference signal is shifted forward by 2 time domain symbols relative to the time domain position occupied in the 1 st slot, that is, the preamble demodulation reference signal starts with the 1 st time domain symbol and occupies antenna ports 0 to 3 (a subset of ports 0 to 7), and it can be seen that "port 0, port 2" and "port 1, port 3" multiplex the 1 st time domain symbol.

As shown in fig. 8, the difference from the embodiment shown in fig. 7 is that the downlink control domain also occupies time domain resources in the 2 nd slot, then in the 2 nd slot, the preamble demodulation reference signal is shifted forward by 1 time domain symbol with respect to the time domain position occupied in the 1 st slot, that is, the preamble demodulation reference signal starts with the 2 nd time domain symbol and occupies antenna ports 0 to 3 (a subset of ports 0 to 7), and it can be seen that "port 0, port 2" and "port 1 and port 3" multiplex the 2 nd time domain symbol.

As shown in fig. 9, in the N slots, the time domain positions occupied by the preamble demodulation reference signals are all the same, in the 2 nd slot, the antenna ports occupied by the preamble demodulation reference signals are a subset of the antenna ports occupied in the 1 st slot, that is, in the 2 nd slot, the preamble demodulation reference signals start from the 3 rd time domain symbol and occupy antenna ports 0 to 3 (a subset of ports 0 to 7), and it can be seen that the 3 rd time domain symbol is multiplexed by "port 0, port 2" and "port 1 and port 3".

It should be noted that the transmission of the pre-demodulation reference signal occupies multiple antenna ports supporting different codes, and is not limited to the above embodiments.

Optionally, the configuration information of the pre-demodulation reference signal may include, at the same time, time domain resource indication information and antenna port indication information occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation in the time slot, or may include any one of the time domain resource indication information and the antenna port indication information, which is not limited herein.

Specifically, the network side device may send the preamble demodulation reference signal configuration information to the terminal through signaling.

Optionally, in an embodiment, the sending, by the network side device, the pre-demodulation reference signal configuration information to the terminal specifically includes: the network side device sends a Radio Resource Control (RRC) signaling to the terminal, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in timeslot aggregation. For example, the configuration information for the demodulation reference signal includes: in the case of initial location indication information and offset indication information, the RRC signaling includes the initial location indication information and the offset indication information.

In another embodiment, the sending, by the network side device, the pre-demodulation reference signal configuration information to the terminal specifically includes: and the network side equipment sends RRC signaling and control signaling to the terminal. Wherein, the RRC signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation; the control signaling contains time domain position indication information occupied by a pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation. For example, the configuration information for the demodulation reference signal includes: initial location indication information and offset indication information, RRC signaling initial location indication information, and control signaling including: offset indicating information.

In another embodiment, the time domain position occupied by the pre-demodulation reference signal in the 1 st timeslot is a preset position, and then the sending, by the network side device, the pre-demodulation reference signal configuration information to the terminal specifically includes: and the network side equipment sends a control signaling to the terminal, wherein the control signaling comprises time domain position indication information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation. For example, the control signaling includes offset indication information.

Or, the network side equipment sends RRC signaling to the terminal, and the time domain position indication information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the RRC signaling time slot aggregation is sent. For example, RRC signaling includes offset indication information.

The Control signaling is a Media Access Control (MAC) -Control Element (CE), or a Downlink Control Indicator (DCI).

Optionally, the antenna port indication information may also be carried by RRC signaling or MAC-CE or DCI.

In a specific implementation process, the network side device sends an RRC signaling to the terminal, where the RRC signaling may include time domain position indication information and antenna port indication information occupied by a preamble demodulation reference signal in each timeslot of timeslot aggregation in the timeslot. Alternatively, the first and second electrodes may be,

the method comprises the steps that network side equipment sends RRC signaling and MAC-CE to a terminal, wherein the RRC signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the 1 st time slot of time slot aggregation; the MAC-CE comprises time domain position indication information occupied by a pre-demodulation reference signal from the 2 nd time slot to the Nth time slot of the time slot aggregation and/or antenna port indication information. Alternatively, the first and second electrodes may be,

and the network side equipment sends RRC signaling and DCI to the terminal. Wherein, the RRC signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation; the DCI includes time domain position indication information occupied by a pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation, and/or antenna port indication information.

Of course, not limited to the above embodiment, the RRC signaling, MAC-CE, and DCI sent by the network side device to the terminal may all carry part or all of the information of the preamble demodulation reference signal configuration information, which is not listed here.

Correspondingly, the terminal side receives the configuration information of the preamble demodulation reference signal corresponding to the configuration information of the preamble demodulation reference signal sent by the network side device, and is not repeated.

Further optionally, the RRC signaling may be New Radio (NR) RRC signaling. The above MAC-CE may be NR MAC-CE. The DCI may be NR DCI.

Fig. 10 is a schematic structural diagram of a network-side device according to an embodiment of the present invention. As shown in fig. 10, the network-side device includes: a generating module 001 and a transmitting module 002, wherein:

the generating module 001 is configured to generate pre-demodulation reference signal configuration information, where the pre-demodulation reference signal configuration information is used to indicate resource information occupied by a pre-demodulation reference signal in time slot aggregation.

A sending module 002, configured to send the pre-demodulation reference signal configuration information to the terminal.

In this embodiment, the generating module generates pre-demodulation reference signal configuration information, and the sending module sends the pre-demodulation reference signal configuration information to the terminal, where the pre-demodulation reference signal configuration information is used to indicate resource information occupied by a pre-demodulation reference signal in timeslot aggregation. Therefore, under the time slot aggregation scene, the network side device can flexibly configure the resources occupied by the pre-demodulation reference signal according to actual data transmission, and then the network side device indicates the resource information occupied by the pre-demodulation reference signal in the time slot aggregation to the terminal, so that the terminal sends or receives the pre-demodulation reference signal according to the indication of the network side device, the resources are better utilized according to actual conditions, and the resource utilization rate and the data transmission rate are improved.

Optionally, the preamble demodulation reference signal configuration information includes: and time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. Correspondingly, the time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: and time domain position indication information respectively corresponding to each time slot in the N time slots of the time slot aggregation, wherein the time domain position indication information corresponding to each time slot is used for indicating the time domain position of the pre-demodulation reference signal in the time slot.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: initial position indication information and offset indication information, wherein,

the initial position indication information is used for indicating a time domain position occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation;

the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot, or is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: offset indicating information.

The offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot, or is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot; and the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation is a preset position.

Further, the sending module 002 is specifically configured to send a radio resource control RRC signaling to the terminal, where the RRC signaling includes time domain position indication information occupied by the preamble demodulation reference signal in the timeslot aggregation. Alternatively, the first and second electrodes may be,

the sending module 002 is specifically configured to send an RRC signaling and a control signaling to the terminal, where the RRC signaling includes time domain position indication information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation, and the control signaling includes time domain position indication information occupied by the pre-demodulation reference signal in the 2 nd time slot to the nth time slot of the time slot aggregation.

In another implementation manner, the sending module 002 is specifically configured to send an RRC signaling to the terminal, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the 2 nd time slot to the nth time slot of the time slot aggregation; or, the method is specifically configured to send a control signaling to a terminal, where the control signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the 2 nd to nth slots of the slot aggregation.

Optionally, the control signaling is: MAC-CE, or, DCI.

Further, the preamble demodulation reference signal configuration information includes: and antenna port indication information occupied by the pre-demodulation reference signal in the time slot aggregation in the time slot.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. The occupied antenna port indication information includes: the first antenna port occupation indication information and/or the second antenna port occupation indication information; the first antenna port occupation indication information is used for indicating antenna port information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation; and the second antenna port occupation indication information is used for indicating the antenna port information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

Optionally, the antenna port occupied by the pre-demodulation reference signal of each of the 2 nd to nth time slots is a subset of the antenna port occupied by the pre-demodulation reference signal of the 1 st time slot.

Optionally, the sending module 002 is specifically configured to send a signaling to the terminal, where the signaling includes the antenna port indication information.

The signaling is RRC signaling, or MAC-CE, or DCI.

In summary, in this embodiment, the network side device may flexibly configure resources, such as time domain resources and/or antenna ports, occupied by the preamble demodulation reference signal according to different data transmission requirements, so as to improve resource utilization rate, improve data transmission efficiency, and the like.

The network side device in this embodiment is configured to execute the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 11, the terminal includes: a receiving module 111 and a determining module 112, wherein,

the receiving module 111 is configured to receive pre-demodulation reference signal configuration information sent by a network side device, where the pre-demodulation reference signal configuration information is used to indicate resource information occupied by a pre-demodulation reference signal in timeslot aggregation.

A determining module 112, configured to determine resource information occupied by the preamble demodulation reference signal in the timeslot aggregation according to the preamble demodulation reference signal configuration information.

In this embodiment, the receiving module receives pre-demodulation reference signal configuration information sent by a network side device, and the determining module determines resource information occupied by the pre-demodulation reference signal in time slot aggregation according to the pre-demodulation reference signal configuration information. Therefore, under the time slot aggregation scene, the network side device can flexibly configure the resources occupied by the pre-demodulation reference signal according to actual data transmission, and then the network side device indicates the resource information occupied by the pre-demodulation reference signal in each time slot to the terminal, so that the terminal sends or receives the pre-demodulation reference signal according to the indication of the network side device, resources are better utilized according to actual conditions, and the resource utilization rate and the data transmission rate are improved.

Correspondingly, the determining module 112 determines, according to the pre-demodulation reference signal configuration information, a time domain position occupied by the pre-demodulation reference signal in the timeslot aggregation.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: and time domain position indication information respectively corresponding to each time slot in the N time slots of the time slot aggregation, wherein the time domain position indication information corresponding to each time slot is used for indicating the time domain position of the pre-demodulation reference signal in the time slot.

Correspondingly, the determining module 112 determines, according to the time domain position indication information corresponding to each time slot of the N time slots of the time slot aggregation, the time domain position occupied by the pre-demodulation reference signal in each time slot of the time slot aggregation in the time slot respectively.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: initial position indication information and offset indication information.

The initial position indication information is used for indicating a time domain position occupied by a pre-demodulation reference signal in a 1 st time slot of the time slot aggregation. The offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot.

Correspondingly, the determining module 112 determines, according to the initial position indication information, a time domain position occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation; and respectively determining the time domain positions occupied by the pre-demodulation reference signals of the time slots from the 2 nd time slot to the Nth time slot according to the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot.

The initial position indication information is used for indicating a time domain position occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation. And the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot.

Correspondingly, the determining module 112 determines, according to the initial position indication information, a time domain position occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation; and determining the time domain position occupied by the pre-demodulation reference signal of the m +1 th time slot according to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot and the offset of the pre-demodulation reference signal of the m +1 th time slot relative to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot, wherein m is more than or equal to 1 and less than N.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. The time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: offset indicating information. And the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation is a preset position.

The offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot.

Correspondingly, the determining module 112 is specifically configured to determine the time domain positions occupied by the pre-demodulation reference signals of the time slots from the 2 nd time slot to the nth time slot respectively according to the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 1 st time slot to the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot.

And the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot.

Correspondingly, the determining module 112 is specifically configured to determine the time domain position occupied by the pre-demodulation reference signal of the m +1 th time slot according to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot and the offset of the pre-demodulation reference signal of the m +1 th time slot with respect to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot, where m is greater than or equal to 1 and is less than N.

Further, the receiving module 111 is specifically configured to receive an RRC signaling sent by a network side device, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the timeslot aggregation.

Or, the receiving module 111 is specifically configured to receive an RRC signaling and a control signaling sent by a network side device, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in a 1 st time slot of the time slot aggregation, and the control signaling includes time domain position indication information occupied by the preamble demodulation reference signal in 2 nd to nth time slots of the time slot aggregation.

In another implementation manner, the receiving module 111 is specifically configured to receive an RRC signaling sent by a network side device, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the 2 nd time slot to the nth time slot of the time slot aggregation. Or, the method is specifically configured to receive a control signaling sent by a network side device, where the control signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the 2 nd to nth slots of the slot aggregation.

The control signaling is as follows: MAC-CE, or, DCI.

Optionally, the preamble demodulation reference signal configuration information includes: and antenna port indication information occupied by the pre-demodulation reference signal in the time slot aggregation.

Correspondingly, the determining module 112 is specifically configured to determine, according to the configuration information of the pre-demodulation reference signal, an antenna port occupied by the pre-demodulation reference signal in the timeslot aggregation.

Optionally, the timeslot aggregation includes N timeslots, where N is an integer greater than 1. The occupied antenna port indication information includes: the first antenna port occupation indication information and/or the second antenna port occupation indication information. And the first antenna port occupation indication information is used for indicating the antenna port information occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation. And the second antenna port occupation indication information is used for indicating the antenna port information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

Further, the receiving module 111 is specifically configured to receive a signaling sent by the network side device, where the signaling includes the antenna port indication information.

The signaling is RRC signaling, or MAC-CE, or DCI.

In summary, in this embodiment, the network side device may flexibly configure resources, such as time domain resources and/or antenna ports, occupied by the pre-demodulation reference signal according to different data transmission requirements, and send the configuration information to the terminal, so that the terminal determines the time domain resources and/or antenna ports, etc., occupied by the pre-demodulation reference signal according to the pre-demodulation reference signal configuration information, so as to improve resource utilization rate and improve data transmission efficiency.

The terminal in this embodiment is used to execute the foregoing method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.

It should be noted that the division of each module of the network side device and the terminal is only a division of a logical function, and all or part of the actual implementation may be integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Fig. 12 is a schematic structural diagram of a network-side device according to another embodiment of the present invention. As shown in fig. 12, the network-side device includes: antenna 11, radio frequency device 12, baseband device 13. The antenna 11 is connected to a radio frequency device 12. In the uplink direction, the rf device 12 receives information via the antenna 11 and sends the received information to the baseband device 13 for processing. In the downlink direction, the baseband device 13 processes information to be transmitted and transmits the information to the radio frequency device 12, and the radio frequency device 12 processes the received information and transmits the processed information through the antenna 11.

The above-mentioned band processing means may be located in the baseband apparatus 13, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 13, where the baseband apparatus 13 includes a processor 121 and a memory 122.

The baseband device 13 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 12, where one chip, for example, the processor 121, is connected to the memory 122 and is connected to call up a program in the memory 122 to perform the network-side device operation shown in the above method embodiment.

The baseband device 13 may further include a network interface 123 for exchanging information with the radio frequency device 12, for example, a Common Public Radio Interface (CPRI).

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the method performed by the above network-side device, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 122 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (ddr Data Rate SDRAM), Enhanced SDRAM (ESDRAM), synchlronous DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 122 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the processor 121 calls the program in the memory 122 to execute the method executed by each module shown in fig. 10, which is not described herein again.

Fig. 13 is a schematic structural diagram of a terminal according to another embodiment of the present invention. As shown in fig. 13, the terminal includes: a processor 131, a memory 132, a network interface 133, and a user interface 134.

The various components described above in the terminal are coupled by a bus system 135. It will be appreciated that the bus system 135 is used to enable communications among the components. The bus system 135 may include a power bus, a control bus, and a status signal bus in addition to the data lines. For clarity of illustration, however, the various buses are labeled as the bus system 135 in FIG. 13.

Alternatively, part or all of the above components may be implemented by embedding a Field Programmable Gate Array (FPGA) on a chip of the terminal. And they may be implemented separately or integrated together.

The user interface 134 is used for connecting peripheral devices or interface circuits connected with peripheral devices, respectively. May include interfaces for devices such as a display, keyboard, or pointing device, such as a mouse, trackball (trackball), touch pad, or touch screen.

The processor 131 here may be a general-purpose processor, such as a CPU, and may also be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. The storage element may be a single storage device or may be a collective term for a plurality of storage elements.

The memory 132 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (ddr Data Rate SDRAM), Enhanced SDRAM (ESDRAM), synchlronous DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 132 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

Optionally, the memory 132 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 1321 and application programs 1322.

The operating system 1321 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is configured to implement various basic services and process hardware-based tasks.

The application programs 1322 include various application programs such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. Programs that implement methods in accordance with embodiments of the invention may also be included within application 1322.

Specifically, the processor 131 calls the program in the memory 132 to execute the method executed by each module shown in fig. 11, which is not described herein again.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention, and are not limited thereto; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for configuring a preamble demodulation reference signal (PRRS), comprising:

the network side equipment sends the configuration information of the preposed demodulation reference signal to a terminal;

the preamble demodulation reference signal configuration information includes:

time domain position indication information occupied by a pre-demodulation reference signal in the time slot aggregation;

the time slot aggregation comprises N time slots, wherein N is an integer greater than 1;

the time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: initial position indication information and offset indication information, wherein,

the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot, or indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot;

alternatively, the first and second electrodes may be,

the time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes:

offset indicating information;

the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot, or is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot;

and the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation is a preset position.

2. The method according to claim 1, wherein the network side device sends the preamble demodulation reference signal configuration information to a terminal, and the method comprises:

the network side equipment sends a Radio Resource Control (RRC) signaling to a terminal, wherein the RRC signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the time slot aggregation; alternatively, the first and second electrodes may be,

the network side equipment sends RRC signaling and control signaling to a terminal, wherein the RRC signaling contains time domain position indication information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation, and the control signaling contains time domain position indication information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

3. The method according to claim 1, wherein the network side device sends the preamble demodulation reference signal configuration information to a terminal, and the method comprises:

the network side equipment sends RRC signaling to a terminal, wherein the RRC signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation; alternatively, the first and second electrodes may be,

and the network side equipment sends a control signaling to a terminal, wherein the control signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

4. The method according to claim 2 or 3, wherein the control signaling is:

a media access control-control element MAC-CE, or a downlink control indication DCI.

5. The method of claim 1, wherein the preamble demodulation reference signal configuration information comprises:

and indicating information of an antenna port occupied by a pre-demodulation reference signal in the time slot aggregation.

6. The method of claim 5, wherein the occupied antenna port indication information includes:

the first antenna port occupation indication information and/or the second antenna port occupation indication information; the first antenna port occupation indication information is used for indicating antenna port information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation; and the second antenna port occupation indication information is used for indicating the antenna port information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

7. The method according to claim 6, wherein the antenna ports occupied by the pre-demodulation reference signal of each of the 2 nd to nth time slots are a subset of the antenna ports occupied by the pre-demodulation reference signal of the 1 st time slot.

8. The method according to any one of claims 5 to 7, wherein the sending, by the network side device, the preamble demodulation reference signal configuration information to a terminal includes:

the network side equipment sends a signaling to a terminal, wherein the signaling comprises the antenna port indication information;

the signaling is RRC signaling, or MAC-CE, or DCI.

9. A method for configuring a preamble demodulation reference signal (PRRS), comprising:

the terminal determines resource information occupied by the pre-demodulation reference signal in time slot aggregation according to the pre-demodulation reference signal configuration information;

the preamble demodulation reference signal configuration information includes:

correspondingly, the terminal determines the resource information occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information, and the method includes:

the terminal determines the time domain position occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information;

the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot;

correspondingly, the determining, by the terminal, the time domain position occupied by the preamble demodulation reference signal in the timeslot aggregation according to the preamble demodulation reference signal configuration information includes:

the terminal determines the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation according to the initial position indication information;

the terminal respectively determines the time domain positions occupied by the pre-demodulation reference signals of the time slots from the 2 nd time slot to the Nth time slot according to the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot;

alternatively, the first and second electrodes may be,

the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot;

the terminal determines the time domain position occupied by the pre-demodulation reference signal of the m +1 th time slot according to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot and the offset of the pre-demodulation reference signal of the m +1 th time slot relative to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot, wherein m is more than or equal to 1 and less than N;

alternatively, the first and second electrodes may be,

the time domain position indication information occupied by the pre-demodulation reference signal in the time slot aggregation specifically includes: offset indicating information;

the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot; the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation is a preset position;

alternatively, the first and second electrodes may be,

the offset indicating information is used for indicating the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot of the time slot aggregation relative to the time domain position occupied by the pre-demodulation reference signal in the previous time slot of the time slot; the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot of the time slot aggregation is a preset position;

the terminal determines the time domain position occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information, and the method comprises the following steps:

and the terminal determines the time domain position occupied by the pre-demodulation reference signal of the m +1 th time slot according to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot and the offset of the pre-demodulation reference signal of the m +1 th time slot relative to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot, wherein m is more than or equal to 1 and less than N.

10. The method according to claim 9, wherein the receiving, by the terminal, the preamble demodulation reference signal configuration information sent by the network side device includes:

the terminal receives a Radio Resource Control (RRC) signaling sent by network side equipment, wherein the RRC signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the time slot aggregation; alternatively, the first and second electrodes may be,

the terminal receives an RRC signaling and a control signaling sent by a network side device, wherein the RRC signaling contains time domain position indication information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation, and the control signaling contains time domain position indication information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

11. The method according to claim 9, wherein the receiving, by the terminal, the preamble demodulation reference signal configuration information sent by the network side device includes:

the terminal receives an RRC signaling sent by network side equipment, wherein the RRC signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation; alternatively, the first and second electrodes may be,

and the terminal receives a control signaling sent by the network side equipment, wherein the control signaling comprises time domain position indication information occupied by a pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

12. The method according to claim 10 or 11, wherein the control signaling is:

13. The method of claim 9, wherein the preamble demodulation reference signal configuration information comprises: antenna port indication information occupied by a pre-demodulation reference signal in the time slot aggregation;

and the terminal determines the antenna port occupied by the pre-demodulation reference signal in the time slot aggregation according to the pre-demodulation reference signal configuration information.

14. The method of claim 13, wherein the occupied antenna port indication information includes: the first antenna port occupation indication information and/or the second antenna port occupation indication information;

the first antenna port occupation indication information is used for indicating antenna port information occupied by a pre-demodulation reference signal in the 1 st time slot of the time slot aggregation;

and the second antenna port occupation indication information is used for indicating the antenna port information occupied by the pre-demodulation reference signal in the 2 nd time slot to the Nth time slot of the time slot aggregation.

15. The method according to claim 14, wherein the antenna ports occupied by the pre-demodulation reference signal of each of the 2 nd to nth time slots are a subset of the antenna ports occupied by the pre-demodulation reference signal of the 1 st time slot.

16. The method according to any one of claims 13 to 15, wherein the receiving, by the terminal, the preamble demodulation reference signal configuration information sent by the network side device includes:

the terminal receives a signaling sent by the network side equipment, wherein the signaling contains the antenna port indication information;

the signaling is RRC signaling, or MAC-CE, or DCI.

17. A network-side device, comprising:

a sending module, configured to send the pre-demodulation reference signal configuration information to a terminal;

the preamble demodulation reference signal configuration information includes:

alternatively, the first and second electrodes may be,

18. The network-side device of claim 17, wherein the sending module is specifically configured to send a radio resource control RRC signaling to a terminal, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the timeslot aggregation; or, the method is specifically configured to send an RRC signaling and a control signaling to a terminal, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in a 1 st time slot of the time slot aggregation, and the control signaling includes time domain position indication information occupied by the preamble demodulation reference signal in 2 nd to nth time slots of the time slot aggregation.

19. The network-side device of claim 17, wherein the sending module is specifically configured to send an RRC signaling to a terminal, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the 2 nd time slot to the nth time slot of the time slot aggregation; or, the method is specifically configured to send a control signaling to a terminal, where the control signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the 2 nd to nth slots of the slot aggregation.

20. The network-side device of claim 18 or 19, wherein the control signaling is:

21. The network-side device of claim 17, wherein the preamble demodulation reference signal configuration information includes:

and antenna port indication information occupied by the pre-demodulation reference signal in the time slot aggregation.

22. The network-side device of claim 21, wherein the occupied antenna port indication information includes:

23. The network-side device of claim 22, wherein the antenna ports occupied by the pre-demodulation reference signals of each of the 2 nd to nth time slots are a subset of the antenna ports occupied by the pre-demodulation reference signals of the 1 st time slot.

24. The network-side device of any one of claims 21 to 23, wherein the sending module is specifically configured to send a signaling to a terminal, where the signaling includes the antenna port indication information;

the signaling is RRC signaling, or MAC-CE, or DCI.

25. A terminal, comprising:

a determining module, configured to determine resource information occupied by the preamble demodulation reference signal in the timeslot aggregation according to the preamble demodulation reference signal configuration information;

the preamble demodulation reference signal configuration information includes:

correspondingly, the determining module is specifically configured to determine, according to the configuration information of the pre-demodulation reference signal, a time domain position occupied by the pre-demodulation reference signal in the time slot aggregation;

correspondingly, the determining module is specifically configured to determine, according to the initial position indication information, a time domain position occupied by a preamble demodulation reference signal in the 1 st time slot of the time slot aggregation; respectively determining the time domain positions occupied by the pre-demodulation reference signals of the time slots from the 2 nd time slot to the Nth time slot according to the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the Nth time slot relative to the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal in the 1 st time slot;

alternatively, the first and second electrodes may be,

correspondingly, the determining module is specifically configured to determine, according to the initial position indication information, a time domain position occupied by a preamble demodulation reference signal in the 1 st time slot of the time slot aggregation; determining the time domain position occupied by the pre-demodulation reference signal of the m +1 th time slot according to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot and the offset of the pre-demodulation reference signal of the m +1 th time slot relative to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot, wherein m is more than or equal to 1 and less than N;

alternatively, the first and second electrodes may be,

correspondingly, the determining module is specifically configured to determine the time domain positions occupied by the pre-demodulation reference signals of the time slots from the 2 nd time slot to the nth time slot respectively according to the offset of the time domain position occupied by the pre-demodulation reference signal of each time slot from the 2 nd time slot to the nth time slot relative to the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot and the time domain position occupied by the pre-demodulation reference signal of the 1 st time slot;

alternatively, the first and second electrodes may be,

correspondingly, the determining module is specifically configured to determine the time domain position occupied by the pre-demodulation reference signal of the m +1 th time slot according to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot and the offset of the pre-demodulation reference signal of the m +1 th time slot with respect to the time domain position occupied by the pre-demodulation reference signal of the m-th time slot, where m is greater than or equal to 1 and is less than N.

26. The terminal according to claim 25, wherein the receiving module is specifically configured to receive a radio resource control RRC signaling sent by a network side device, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the timeslot aggregation; or, the ue is specifically configured to receive an RRC signaling and a control signaling sent by a network side device, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in a 1 st time slot of the time slot aggregation, and the control signaling includes time domain position indication information occupied by the preamble demodulation reference signal in 2 nd to nth time slots of the time slot aggregation.

27. The terminal according to claim 25, wherein the receiving module is specifically configured to receive an RRC signaling sent by a network side device, where the RRC signaling includes time domain position indication information occupied by a preamble demodulation reference signal in a 2 nd time slot to an nth time slot of the time slot aggregation; or, the method is specifically configured to receive a control signaling sent by a network side device, where the control signaling includes time domain position indication information occupied by a preamble demodulation reference signal in the 2 nd to nth slots of the slot aggregation.

28. The terminal according to claim 26 or 27, wherein the control signaling is:

29. The terminal of claim 25, wherein the preamble demodulation reference signal configuration information comprises: antenna port indication information occupied by a pre-demodulation reference signal in the time slot aggregation;

correspondingly, the determining module is specifically configured to determine, according to the configuration information of the pre-demodulation reference signal, an antenna port occupied by the pre-demodulation reference signal in the time slot aggregation.

30. The terminal of claim 29, wherein the occupied antenna port indication information includes: the first antenna port occupation indication information and/or the second antenna port occupation indication information;

31. The terminal according to claim 30, wherein the antenna ports occupied by the pre-demodulation reference signal of each of the 2 nd to nth time slots are a subset of the antenna ports occupied by the pre-demodulation reference signal of the 1 st time slot.

32. The terminal according to any one of claims 29 to 31, wherein the receiving module is specifically configured to receive a signaling sent by the network side device, where the signaling includes the antenna port indication information;

the signaling is RRC signaling, or MAC-CE, or DCI.