CN113972969A

CN113972969A - Transmission method and device for control signaling

Info

Publication number: CN113972969A
Application number: CN202010713752.8A
Authority: CN
Inventors: 塔玛拉卡·拉盖施
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2022-01-25
Anticipated expiration: 2040-07-22
Also published as: CN113972969B; WO2022017334A1

Abstract

The embodiment of the application discloses a transmission method and equipment of a control signaling, which can solve the problems that an intermediate node cannot be controlled and cannot accurately forward a message in the related technology. The method can be applied to network side equipment and comprises the following steps: sending a control signaling, wherein the control signaling is used for instructing an intermediate node to execute at least one of the following: receiving a first message from the network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

Description

Transmission method and device for control signaling

Technical Field

The present application belongs to the field of communications technologies, and in particular, to a method and an apparatus for transmitting a control signaling.

Background

In a mobile communication system, various intermediate nodes (e.g., relays) are usually deployed for message forwarding between a network side device and a terminal in consideration of cost and flexible deployment. In the related art, the intermediate node only has a message forwarding function, and cannot ensure that the terminal can correctly receive the message, and cannot ensure that the intermediate node can correctly receive the message sent by the terminal, and particularly in a millimeter wave (FR2) frequency band, the above disadvantage that the message forwarding cannot be accurately performed is particularly obvious. Therefore, how to control the intermediate nodes so that the intermediate nodes can accurately forward the messages is an urgent technical problem to be solved in the prior art.

Disclosure of Invention

The embodiment of the application aims to provide a transmission method and equipment for a control signaling, which can solve the problems that an intermediate node cannot be controlled and cannot accurately forward a message in the related art.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, a method for sending a control signaling is provided, where the method is applied to a network side device, and the method includes: sending a control signaling, wherein the control signaling is used for instructing an intermediate node to execute at least one of the following: receiving a first message from the network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In a second aspect, a method for receiving control signaling is provided, where the method is applied to an intermediate node, and the method includes: receiving control signaling, the control signaling being used to instruct the intermediate node to perform at least one of: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In a third aspect, a network-side device is provided, including: a sending module, configured to send a control signaling, where the control signaling is used to instruct an intermediate node to perform at least one of the following: receiving a first message from the network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In a fourth aspect, there is provided an intermediate node comprising: a receiving module, configured to receive a control signaling, where the control signaling is used to instruct the intermediate node to perform at least one of the following: receiving a first message from the network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In a fifth aspect, there is provided a communication device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the method according to the first aspect or implementing the method according to the second aspect.

In a sixth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the method of the first aspect or the method of the second aspect.

In a seventh aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the second aspect.

In this embodiment, a network side device sends a control signaling to an intermediate node, where the control signaling is used to instruct the intermediate node to perform at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving the second message from the terminal and forwarding the second message to the network side equipment, so that the network side equipment can accurately control the intermediate node, the intermediate node can accurately forward the message, and the communication efficiency is improved.

Drawings

Fig. 1 is a block diagram of a wireless communication system according to one embodiment of the present application;

fig. 2 is a schematic flow chart of a method of transmitting control signaling according to an embodiment of the present application;

fig. 3 is a schematic application scenario diagram of a method for sending control signaling according to an embodiment of the present application;

fig. 4 is a schematic flow chart of a method of reception of control signaling according to another embodiment of the present application;

fig. 5 is a schematic structural diagram of a network-side device according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an intermediate node according to one embodiment of the present application;

FIG. 7 is a schematic block diagram of a communication device according to one embodiment of the present application;

fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the New air interface (New Ra) for exemplary purposesdio, NR) system, and in much of the description below, NR terminology is used, although these techniques may also be applied to applications other than NR systems, such as 6 th generation (6)^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, wherein the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a next generation node B (gnb), a home node B, a home evolved node B (hbo), a WLAN access Point, a WiFi node, a Transmission Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

The following describes in detail a transmission method and a device for control signaling provided in the embodiments of the present application through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, an embodiment of the present application provides a method 200 for sending control signaling, which may be performed by a network side device, in other words, the method may be performed by software or hardware installed in the network side device, and the method includes the following steps.

S202: sending control signaling, the control signaling being used for instructing the intermediate node to perform at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

The intermediate node mentioned in the embodiment of the present application may be a layer one (physical layer) relay, and based on the control signaling, the intermediate node may receive the first/second message, amplify the first/second message, and forward the amplified first/second message, for example, receive the first message from the network side device and forward the first message to the terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In one example, the control signaling is used to indicate a time domain location at which the intermediate node receives and/or forwards the first message. For example, the control signaling is used to indicate a time domain location where the intermediate node receives the first message; instructing the intermediate node to forward the time domain location of the first message (i.e., to send the first message to the terminal); while indicating the time domain location at which the intermediate node received and forwarded the first message.

In another example, the control signaling is used to indicate a time domain location where the intermediate node receives and/or forwards the second message, for example, the control signaling is used to indicate a time domain location where the intermediate node receives the second message; the time domain position of the intermediate node for forwarding the second message (that is, sending the second message to the network side device) may also be used; and may also be used to indicate the time domain location at which the intermediate node receives and forwards the second message simultaneously.

It will be appreciated that the two examples described above are not to be implemented in a conflicting manner and therefore the two examples described above may be implemented simultaneously, i.e. the control signalling described above may be used to indicate the time domain location at which the intermediate node receives and/or forwards the first message and may be used to indicate the time domain location at which the intermediate node receives and/or forwards the second message.

Optionally, the control signaling mentioned in the above examples may be used to indicate beam information in addition to the time domain position.

In one example, the above control signaling is used to instruct the intermediate node to receive and/or forward beam information of the first message. Specifically, for example, the control signaling may be used to instruct the intermediate node to receive beam information of the first message; beam information that may also be used to instruct the intermediate node to forward (i.e., send to the terminal) the first message; may also be used to instruct intermediate nodes to receive and forward beam information of the first message simultaneously.

In another example, the above control signaling is used to instruct the intermediate node to receive and/or forward beam information of the second message. Specifically, for example, the control signaling may be used to instruct the intermediate node to receive beam information of the second message; the beam information may also be used to instruct the intermediate node to forward (i.e., send the second message to the network side device) the second message; may also be used to instruct intermediate nodes to receive and forward beam information of the second message simultaneously.

Similarly, the two examples are not implemented in a manner of collision, and therefore, the two examples can be implemented simultaneously, that is, the control signaling can be used to instruct the intermediate node to receive and/or forward the beam information of the first message and simultaneously used to instruct the intermediate node to receive and/or forward the beam information of the second message.

Based on the beam information indicated by the control signaling introduced in the foregoing embodiments, the sending method of the control signaling provided in the embodiments of the present application may also be applied to a millimeter wave (FR2) frequency band, so that an intermediate node may receive and forward a message through a narrower beam, implement a more accurate message forwarding function, and improve communication efficiency.

Furthermore, the intermediate node mentioned in the embodiment of the present application may be a layer one (physical layer) relay, which does not need autonomous decision (such as beam information, time domain location, and the like), and performs message reception and forwarding based on the above control signaling, so as to save design cost of the intermediate node.

In the sending method of the control signaling provided in the embodiment of the present application, a network side device sends the control signaling to an intermediate node, where the control signaling is used to instruct the intermediate node to execute at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving the second message from the terminal and forwarding the second message to the network side equipment, so that the network side equipment can accurately control the intermediate node, the intermediate node can accurately forward the message, and the communication efficiency is improved.

Furthermore, the control signaling may also be used to instruct the intermediate node to receive and/or forward the time domain position, the beam information, and the like of the first message/the second message, so that the intermediate node may determine the time domain position of the message and transmit and receive the beam, and further, the intermediate node may accurately forward the message, and improve communication efficiency.

Referring to fig. 3, in an application scenario of the sending method of the control signaling provided in the embodiment of the present application, in fig. 3, for a downlink process, a network side device may send a first message (PDCCH-R in fig. 3, where R represents a relay) to an intermediate node through a certain beam, the intermediate node may forward the first message to a terminal through the certain beam, both the beam information and a time domain position of the first message may be indicated by the control signaling, and the control signaling may be sent to the intermediate node in advance by the network side device. The upstream process in fig. 3 is similar to the downstream process and will not be described again.

In order to describe the method for sending the control signaling in detail, several specific embodiments are described below.

Example one

The first message in this embodiment includes a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH), where the PDCCH is used to schedule transmission of the PDSCH; the second message includes a Physical Uplink Control Channel (PUCCH).

In this embodiment, the control signaling sent by the network side device to the intermediate node includes at least one of the following:

1) a Relay-Transmission Configuration Indicator (R-TCI) field for indicating the intermediate node to receive the reception beams of the PDCCH and the PDSCH. It should be noted that, if the wireless connection between the network side device and the intermediate node is a fixed beam (which may be implemented by engineering), the R-TCI field may not be included.

2) A Transmission Configuration Indicator (TCI) field for instructing the intermediate node to forward a Transmission beam of the PDCCH and the PDSCH to a terminal.

Optionally, if the PDCCH directly sent by the network side device to the terminal does not include the TCI field, the control signaling may not include the TCI field.

3) Time domain location information for instructing the intermediate node to receive and/or forward at least one of the PDCCH and the PDSCH as follows: a starting time domain position and an ending time domain position. For example, the time domain location information is used to indicate a starting time domain location where the PDCCH and the PDSCH are received and/or forwarded by the intermediate node, and for example, the time domain location information is used to indicate a starting time domain location and an ending time domain location where the PDCCH and the PDSCH are received and/or forwarded by the intermediate node.

4) A PUCCH-spatial relationship information identifier (PUCCH-spatial relationship InfoId) for indicating the intermediate node to receive the reception information of the PUCCH.

In an example, the control signaling may include the PUCCH spatial relationship information identifier; in another example, the control signaling may not include the PUCCH spatial relationship information identifier, and the network side device sends the PUCCH spatial relationship information identifier to the intermediate node through another separate signaling.

Optionally, the PUCCH spatial relationship information identifier in the Control signaling may be the same as a PUCCH spatial relationship information identifier configured by a Radio Resource Control (RRC) to the terminal by the network side device.

5) Indication information for indicating a type of the control signaling. In this example, the network side device may distinguish the type of the control signaling sent by the network side device to the intermediate node by 1 bit or multiple bits. Regarding the type of the control signaling, in the first embodiment to the seventh embodiment, the control signaling described in each embodiment may be one type of control signaling, and the types of the control signaling in any two embodiments are different.

For the time domain position information mentioned in 3) above, in an example, the PDCCH and the PDSCH are transmitted discontinuously, wherein the starting time domain position includes a starting time domain position of the PDCCH and a starting time domain position of the PDSCH; and/or the end time domain position comprises an end time domain position of the PDCCH and an end time domain position of the PDSCH.

Specifically, for example, if the control signaling (PDCCH) and the data (PDSCH) of the network side device scheduling terminal are not continuously transmitted, the time domain location information may respectively include a start symbol position (or a start symbol and an end symbol position) of the control signaling (PDCCH) and a start symbol position (or a start symbol and an end symbol position) of the data (PDSCH).

For the time domain location information mentioned in 3) above, in an example, the first message is transmitted across time slots, wherein the time domain location information further includes time slot information of the first message. For example, if the data of the network side device scheduling terminal is cross slot (slot) scheduling, the time domain location information may further include slot information.

For the time domain position information mentioned in 3) above, in one example, the time domain position information is also used to indicate a time domain offset (e.g., Slot offset); wherein the time domain offset comprises an offset between a first time domain location (e.g., a first time slot) and a second time domain location (e.g., a second time slot), the first time domain location being a time domain location where the intermediate node receives the control signaling, the second time domain location being a time domain location where the intermediate node receives the first message.

It should be noted that, in practical applications, the control signaling may include any one or any combination of more than one of the above 1) to 5).

Example two

The first message in this embodiment includes a PDCCH, and the second message includes a Physical Uplink Shared Channel (PUSCH), and the PDCCH is used to schedule transmission of the PUSCH.

1) an R-TCI field to instruct the intermediate node to receive a receive beam of the PDCCH. It should be noted that, if the wireless connection between the network side device and the intermediate node is a fixed beam (which may be implemented by engineering), the R-TCI field may not be included.

2) A Time Domain Resource Allocation (TDRA) field to indicate a Time slot, a symbol position, and a length for the intermediate node to receive the PUSCH.

3) Sounding Reference Signal (SRS) spatial relationship information, the SRS spatial relationship information being used to instruct the intermediate node to receive the receive beam of the PUSCH.

4) R-spatial relationship information (R-spatial relationship info, where R may represent a relay), where the R-spatial relationship information is used to instruct the intermediate node to forward a transmission beam of the PUSCH to a network side device. It should be noted that, if the wireless connection between the network-side device and the intermediate node is a fixed beam (which may be implemented by engineering), the R spatial relationship information may not be included.

5) Indication information for indicating a type of the control signaling. In this example, the network side device may distinguish the type of the control signaling sent by the network side device to the intermediate node by 1 bit or multiple bits. For a description of the type of control signaling, reference may be made to embodiment one.

EXAMPLE III

The first message in this embodiment includes a PDCCH and an aperiodic Channel State Information-Reference Signal (CSI-RS), and the PDCCH may be used to instruct the terminal to receive the CSI-RS.

1) an R-TCI field to instruct the intermediate node to receive a receive beam of the aperiodic CSI-RS. It should be noted that, if the wireless connection between the network side device and the intermediate node is a fixed beam (which may be implemented by engineering), the R-TCI field may not be included.

2) Quasi Co-Location (QCL) information (QCL-info) for instructing the intermediate node to forward a transmit beam of the aperiodic CSI-RS.

3) Time slot information (e.g., aperiod triggerring offset) for instructing the intermediate node to forward a time slot of the aperiodic CSI-RS.

4) And the CSI-RS time domain information is used for indicating the middle node to forward the symbol starting position and the length of the aperiodic CSI-RS.

It should be noted that, in practical applications, the control signaling may include any one or any combination of more than one of the above 1) to 4).

Example four

The first message in this embodiment includes a periodic CSI-RS or a semi-persistent CSI-RS.

1) QCL information (e.g., QCL-InfoPeriodcCSI-RS) for instructing the intermediate node to forward a transmit beam (e.g., TCI state) of the periodic CSI-RS or the semi-persistent CSI-RS.

2) Period and offset information (e.g., periodicityAndOffset) for indicating a period and slot offset at which the intermediate node forwards the periodic or semi-persistent CSI-RS.

3) And (c) repeating information, namely repetition (on, off), wherein the repeating information is used for indicating whether the beams of the periodic CSI-RS or semi-continuous CSI-RS forwarded by the intermediate node are the same. Under the condition that the network side equipment configures the repetition parameter for the terminal, the network side equipment can carry the information of whether to repeat or not in the control signaling sent to the intermediate node.

4) And the CSI-RS time domain information is used for indicating the middle node to forward the symbol starting position and the length of the periodic CSI-RS or the semi-continuous CSI-RS.

EXAMPLE five

The first message in this embodiment includes a PDCCH, and the second message includes an aperiodic SRS, where the PDCCH is used to instruct the terminal to perform transmission of the aperiodic SRS.

1) time domain position information (e.g., slotOffset) indicating a time domain position (e.g., slot position) at which the aperiodic SRS is received by the intermediate node.

2) Spatial correlation information (spatial relalationInfo) for instructing the intermediate node to receive a receive beam of the aperiodic SRS;

3) SRS time domain information, wherein the SRS time domain information is used for indicating the symbol starting position and length of the aperiodic SRS received by the intermediate node.

EXAMPLE six

The second message in this embodiment includes a periodic SRS or a semi-persistent SRS.

1) period and offset information (periodicityAndOffset-p) for indicating a period and slot offset at which the intermediate node receives the periodic or semi-persistent SRS.

2) Spatial correlation information (spatial relalationInfo) for instructing the intermediate node to receive a receive beam of the periodic SRS or the semi-persistent SRS;

3) SRS time domain information, wherein the SRS time domain information is used for indicating the symbol starting position and length of the periodic SRS or the semi-continuous SRS received by the intermediate node.

It should be noted that, in practical applications, the control signaling may include any one or any combination of more than one of the above 1) to 3).

EXAMPLE seven

The first message in this embodiment includes a Synchronization Signal/PBCH Block (SSB).

1) SSB period information indicating a period for the intermediate node to receive and/or forward the SSB.

2) The SSB number information is used to indicate the number of SSBs received and/or forwarded by the intermediate node, and may specifically be the number of SSBs in one period.

3) SSB time index information (SSB time index) for indicating the intermediate node to receive and/or forward the SSB time information.

4) A Half frame indication information (Half frame bit) for indicating whether a time domain position of the SSB received and/or forwarded by the intermediate node is in a first Half frame or a second Half frame of a radio frame.

5) System Frame Number information (SFN), where the System Frame Number information is used to instruct the intermediate node to forward the time information of the SSB. Specifically, the system frame number information may be used to assist the intermediate node to determine a specific forwarding time according to the SSB period, the SSB time index, and the half frame bit.

The method for sending control signaling according to the embodiment of the present application is described in detail above with reference to fig. 2. A method for receiving control signaling according to another embodiment of the present application will be described in detail below with reference to fig. 4. It is to be understood that the interaction between the network side device described from the intermediate node side and the intermediate node is the same as that described for the network side device in the method shown in fig. 2, and the related description is appropriately omitted to avoid redundancy.

Fig. 4 is a schematic diagram of an implementation flow of a method for receiving a control signaling according to an embodiment of the present application, which may be applied to an intermediate node. As shown in fig. 4, the method 400 includes:

s402: receiving control signaling for instructing an intermediate node to perform at least one of: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In the method for receiving a control signaling provided in the embodiment of the present application, an intermediate node receives a control signaling from a network side device, where the control signaling is used to instruct the intermediate node to execute at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving the second message from the terminal and forwarding the second message to the network side equipment, so that the network side equipment can accurately control the intermediate node, the intermediate node can accurately forward the message, and the communication efficiency is improved.

Alternatively, the processor may, as an embodiment,

the control signaling is used for indicating a time domain position of the intermediate node for receiving and/or forwarding the first message; and/or

The control signaling is used for indicating a time domain position where the intermediate node receives and/or forwards the second message.

Alternatively, the processor may, as an embodiment,

the control signaling is used for instructing the intermediate node to receive and/or forward beam information of the first message; and/or

The control signaling is used for instructing the intermediate node to receive and/or forward beam information of the second message.

Optionally, as an embodiment, the first message includes a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH, where the PDCCH is used to schedule transmission of the PDSCH; the second message comprises a physical uplink control channel, PUCCH.

Optionally, as an embodiment, the control signaling includes at least one of:

a relay transmission configuration indication (R-TCI) field for indicating the intermediate node to receive the receive beams of the PDCCH and the PDSCH;

a Transmission Configuration Indication (TCI) field for indicating the intermediate node to forward a transmission beam of the PDCCH and the PDSCH;

time domain location information for instructing the intermediate node to receive and/or forward at least one of the PDCCH and the PDSCH as follows: a starting time domain position and an ending time domain position;

a PUCCH spatial relationship information identifier for indicating the intermediate node to receive the reception information of the PUCCH;

indication information for indicating a type of the control signaling.

Optionally, as an embodiment, the PDCCH and the PDSCH are transmitted non-continuously, wherein,

the starting time domain position comprises a starting time domain position of the PDCCH and a starting time domain position of the PDSCH; and/or

The end time domain position includes an end time domain position of the PDCCH and an end time domain position of the PDSCH.

Optionally, as an embodiment, the first message is transmitted across time slots, where the time domain location information further includes time slot information of the first message.

Optionally, as an embodiment, the time domain position information is further used to indicate a time domain offset;

wherein the time domain offset includes an offset between a first time domain position and a second time domain position, the first time domain position is a time domain position where the intermediate node receives the control signaling, and the second time domain position is a time domain position where the intermediate node receives the first message.

Optionally, as an embodiment, the first message includes a PDCCH, and the second message includes a physical uplink shared channel, PUSCH, where the PDCCH is used to schedule transmission of the PUSCH.

Optionally, as an embodiment, the control signaling includes at least one of:

an R-TCI field to instruct the intermediate node to receive a receive beam of the PDCCH;

a Time Domain Resource Allocation (TDRA) field, wherein the TDRA field is used for indicating a time slot, a symbol position and a length of the PUSCH received by the intermediate node;

sounding Reference Signal (SRS) spatial relationship information, the SRS spatial relationship information being used to instruct the intermediate node to receive a receive beam of the PUSCH;

r spatial relationship information, the R spatial relationship information being used to instruct the intermediate node to forward the transmission beam of the PUSCH;

indication information for indicating a type of the control signaling.

Optionally, as an embodiment, the first message includes a PDCCH and an aperiodic channel state information reference signal CSI-RS.

Optionally, as an embodiment, the control signaling includes at least one of:

an R-TCI field to instruct the intermediate node to receive a receive beam of the aperiodic CSI-RS;

quasi co-located QCL information, the QCL information to instruct the intermediate node to forward a transmit beam of the aperiodic CSI-RS;

time slot information, wherein the time slot information is used for indicating the intermediate node to forward a time slot of the aperiodic CSI-RS;

and the CSI-RS time domain information is used for indicating the middle node to forward the symbol starting position and the length of the aperiodic CSI-RS.

Optionally, as an embodiment, the first message includes a periodic CSI-RS or a semi-persistent CSI-RS.

Optionally, as an embodiment, the control signaling includes at least one of:

QCL information, the QCL information used to instruct the intermediate node to forward the transmit beam of the periodic CSI-RS or semi-persistent CSI-RS;

the period and offset information is used for indicating the intermediate node to forward the period and time slot offset of the period CSI-RS or the semi-continuous CSI-RS;

whether information is repeated, wherein the information is used for indicating whether the beams of the periodic CSI-RS or semi-continuous CSI-RS forwarded by the intermediate node are the same;

and the CSI-RS time domain information is used for indicating the middle node to forward the symbol starting position and the length of the periodic CSI-RS or the semi-continuous CSI-RS.

Optionally, as an embodiment, the first message includes a PDCCH, and the second message includes an aperiodic SRS, where the PDCCH is used to instruct the terminal to perform transmission of the aperiodic SRS.

Optionally, as an embodiment, the control signaling includes at least one of:

time domain position information, the time domain position information being used to indicate a time domain position at which the aperiodic SRS is received by the intermediate node;

spatial correlation information for instructing the intermediate node to receive a receive beam of the aperiodic SRS;

SRS time domain information, wherein the SRS time domain information is used for indicating the symbol starting position and length of the aperiodic SRS received by the intermediate node.

Optionally, as an embodiment, the second message includes a periodic SRS or a semi-persistent SRS.

Optionally, as an embodiment, the control signaling includes at least one of:

period and offset information for indicating a period and a slot offset at which the intermediate node receives the periodic SRS or the semi-persistent SRS;

spatial correlation information for instructing the intermediate node to receive a receive beam of the periodic SRS or semi-persistent SRS;

SRS time domain information, wherein the SRS time domain information is used for indicating the symbol starting position and length of the periodic SRS or the semi-continuous SRS received by the intermediate node.

Optionally, as an embodiment, the first message includes a synchronization and broadcast block SSB.

Optionally, as an embodiment, the control signaling includes at least one of:

SSB period information indicating a period for the intermediate node to receive and/or forward the SSB;

SSB number information, wherein the SSB number information is used for indicating the number of the SSBs received and/or forwarded by the intermediate node;

SSB time index information for indicating the intermediate node to receive and/or forward the SSB time information;

a field indication information for indicating whether the time domain position of the SSB received and/or forwarded by the intermediate node is in a first field or a second field of a radio frame;

and the system frame number information is used for indicating the intermediate node to forward the time information of the SSB.

Fig. 5 is a schematic structural diagram of a network-side device according to an embodiment of the present application, and as shown in fig. 5, the network-side device 500 includes:

a sending module 502, configured to send a control signaling, where the control signaling is used to instruct an intermediate node to perform at least one of the following: receiving a first message from the network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In this embodiment, a network side device sends a control signaling to an intermediate node, where the control signaling is used to instruct the intermediate node to execute at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving the second message from the terminal and forwarding the second message to the network side equipment, so that the network side equipment can accurately control the intermediate node, the intermediate node can accurately forward the message, and the communication efficiency is improved.

Alternatively, the processor may, as an embodiment,

Optionally, as an embodiment, the control signaling includes at least one of:

indication information for indicating a type of the control signaling.

Optionally, as an embodiment, the control signaling includes at least one of:

indication information for indicating a type of the control signaling.

Optionally, as an embodiment, the control signaling includes at least one of:

The network side device 500 according to the embodiment of the present application may refer to the flow corresponding to the method 200 of the embodiment of the present application, and each unit/module and the other operations and/or functions in the network side device 500 are respectively for implementing the corresponding flow in the method 200 and can achieve the same or equivalent technical effects, and are not described herein again for brevity.

Fig. 6 is a schematic structural diagram of an intermediate node according to an embodiment of the present application, and as shown in fig. 6, the intermediate node 600 includes:

a receiving module 602, configured to receive a control signaling, where the control signaling is used to instruct the intermediate node to perform at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

In this embodiment of the present application, an intermediate node receives a control signaling from a network side device, where the control signaling is used to instruct the intermediate node to perform at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving the second message from the terminal and forwarding the second message to the network side equipment, so that the network side equipment can accurately control the intermediate node, the intermediate node can accurately forward the message, and the communication efficiency is improved.

Alternatively, the processor may, as an embodiment,

Optionally, as an embodiment, the control signaling includes at least one of:

indication information for indicating a type of the control signaling.

Optionally, as an embodiment, the control signaling includes at least one of:

indication information for indicating a type of the control signaling.

Optionally, as an embodiment, the control signaling includes at least one of:

Optionally, the intermediate node 600 further comprises a processor.

The intermediate node 600 according to the embodiment of the present application may refer to the flow corresponding to the method 400 according to the embodiment of the present application, and each unit/module and the other operations and/or functions described above in the intermediate node 600 are respectively for implementing the corresponding flow in the method 400, and can achieve the same or equivalent technical effects, and for brevity, no further description is provided herein.

Optionally, as shown in fig. 7, an embodiment of the present application further provides a communication device 700, which includes a processor 701, a memory 702, and a program or an instruction stored in the memory 702 and executable on the processor 701, for example, when the communication device 700 is a network-side device, the program or the instruction is executed by the processor 701 to implement each process of the above-mentioned embodiment of the method for sending the control signaling, and the same technical effect can be achieved. When the communication device 700 is an intermediate node, the program or the instruction is executed by the processor 701 to implement the processes of the above-described embodiment of the method for receiving a control signaling, and the same technical effect can be achieved.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 8, the network device 800 includes: antenna 81, radio frequency device 82, baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the rf device 82 receives information via the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted and transmits the information to the rf device 82, and the rf device 82 processes the received information and transmits the processed information through the antenna 81.

The above band processing means may be located in the baseband device 83, and the method performed by the network side device in the above embodiment may be implemented in the baseband device 83, where the baseband device 83 includes a processor 84 and a memory 85.

The baseband device 83 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, wherein one chip, for example, the processor 84, is connected to the memory 85 to call up the program in the memory 85 to perform the network device operation shown in the above method embodiment.

The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82, such as a Common Public Radio Interface (CPRI).

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute the methods executed by the modules shown in fig. 5, and achieve the same technical effects, which are not described herein for avoiding repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing control signaling sending/receiving method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor may be the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the above-mentioned control signaling sending/receiving method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for sending control signaling is applied to a network side device, and is characterized in that the method comprises the following steps:

sending a control signaling, wherein the control signaling is used for instructing an intermediate node to execute at least one of the following: receiving a first message from the network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

2. The method of claim 1,

3. The method according to claim 1 or 2,

4. The method of claim 1, wherein the first message comprises a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH), and wherein the PDCCH is used for scheduling transmission of the PDSCH; the second message comprises a physical uplink control channel, PUCCH.

5. The method of claim 4, wherein the control signaling comprises at least one of:

indication information for indicating a type of the control signaling.

6. The method of claim 5, wherein the PDCCH and the PDSCH are transmitted non-continuously, wherein,

7. The method of claim 5, wherein the first message is transmitted across time slots, and wherein the time domain location information further comprises time slot information of the first message.

8. The method of claim 5, wherein the time domain position information is further used for indicating a time domain offset;

9. The method of claim 1, wherein the first message comprises a PDCCH, and wherein the second message comprises a Physical Uplink Shared Channel (PUSCH), and wherein the PDCCH is used to schedule transmission of the PUSCH.

10. The method of claim 9, wherein the control signaling comprises at least one of:

indication information for indicating a type of the control signaling.

11. The method of claim 1, wherein the first message comprises a PDCCH and an aperiodic channel state information reference signal (CSI-RS).

12. The method of claim 11, wherein the control signaling comprises at least one of:

13. The method of claim 1, wherein the first message comprises a periodic CSI-RS or a semi-persistent CSI-RS.

14. The method of claim 13, wherein the control signaling comprises at least one of:

15. The method of claim 1, wherein the first message comprises a PDCCH, and wherein the second message comprises an aperiodic SRS, and wherein the PDCCH is used for instructing the terminal to perform transmission of the aperiodic SRS.

16. The method of claim 15, wherein the control signaling comprises at least one of:

17. The method of claim 1, wherein the second message comprises a periodic SRS or a semi-persistent SRS.

18. The method of claim 17, wherein the control signaling comprises at least one of:

19. The method of claim 1, wherein the first message comprises a synchronization and broadcast block (SSB).

20. The method of claim 19, wherein the control signaling comprises at least one of:

21. A method for receiving control signaling, applied to an intermediate node, the method comprising:

receiving control signaling, the control signaling being used to instruct the intermediate node to perform at least one of: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

22. The method of claim 21,

23. The method of claim 21 or 22,

24. The method of claim 21, wherein the first message comprises a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH), and wherein the PDCCH is used for scheduling transmission of the PDSCH; the second message comprises a Physical Uplink Control Channel (PUCCH), and the control signaling comprises at least one of the following:

indication information for indicating a type of the control signaling.

25. The method of claim 21, wherein the first message comprises a PDCCH, wherein the second message comprises a physical uplink shared channel, PUSCH, and wherein the PDCCH is used for scheduling transmission of the PUSCH, wherein the control signaling comprises at least one of:

indication information for indicating a type of the control signaling.

26. The method of claim 21, wherein the first message comprises a PDCCH and an aperiodic channel state information reference signal, CSI-RS, and wherein the control signaling comprises at least one of:

27. The method of claim 21, wherein the first message comprises a periodic CSI-RS or a semi-persistent CSI-RS, and wherein the control signaling comprises at least one of:

28. The method of claim 21, wherein the first message comprises a PDCCH, wherein the second message comprises an aperiodic SRS, wherein the PDCCH is used for instructing the terminal to perform transmission of the aperiodic SRS, and wherein the control signaling comprises at least one of:

29. The method of claim 21, wherein the second message comprises a periodic SRS or a semi-persistent SRS, and wherein the control signaling comprises at least one of:

30. The method of claim 21, wherein the first message comprises a synchronization and broadcast block (SSB), and wherein the control signaling comprises at least one of:

31. A network-side device, comprising:

a sending module, configured to send a control signaling, where the control signaling is used to instruct an intermediate node to perform at least one of the following: receiving a first message from the network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

32. An intermediate node, comprising:

a receiving module, configured to receive a control signaling, where the control signaling is used to instruct the intermediate node to perform at least one of the following: receiving a first message from network side equipment and forwarding the first message to a terminal; and receiving a second message from the terminal and forwarding the second message to the network side equipment.

33. A communications device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing a method of transmitting control signalling according to any one of claims 1 to 20 or implementing a method of receiving control signalling according to any one of claims 21 to 30.

34. A readable storage medium, on which a program or instructions are stored, which, when executed by the processor, implement the method of transmitting control signaling according to any one of claims 1 to 20, or implement the method of receiving control signaling according to any one of claims 21 to 30.