CN113972969B

CN113972969B - Transmission method and equipment for control signaling

Info

Publication number: CN113972969B
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: 2023-05-05
Anticipated expiration: 2040-07-22
Also published as: CN113972969A; WO2022017334A1

Abstract

The embodiment of the application discloses a transmission method and equipment of control signaling, which can solve the problems that the intermediate node cannot be controlled and the message forwarding cannot be accurately performed by the intermediate node in the related technology. The method can be applied to network side equipment and comprises the following steps: transmitting control signaling for instructing the intermediate node to perform at least one of: 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 equipment for control signaling

Technical Field

The application belongs to the technical field of communication, and particularly relates to a transmission method and equipment of control signaling.

Background

In a mobile communication system, various intermediate nodes (e.g., relays) are generally deployed for message forwarding between network-side devices and terminals in view 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 also cannot ensure that the intermediate node can correctly receive the message sent by the terminal, especially in the millimeter wave (FR 2) frequency band, the defect that the message forwarding cannot be accurately performed is particularly obvious. Therefore, how to control the above intermediate nodes, so that the intermediate nodes can accurately forward the message is a technical problem that needs to be solved in the prior art.

Disclosure of Invention

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

In order to solve the technical problems, the application is realized as follows:

in a first aspect, a method for sending control signaling is provided, applied to a network side device, where the method includes: transmitting control signaling for instructing the intermediate node to perform at least one of: 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, applied to an intermediate node, and the method includes: receiving control signaling for instructing 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 control signaling, where the control signaling is configured to instruct an intermediate node to perform at least one of: 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 control signaling, where the control signaling is configured to instruct the intermediate node to perform at least one of: 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 instruction stored on the memory and executable on the processor, the program or instruction 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 having stored thereon a program or instructions which when executed by a processor, implement the method according to the first aspect or implement the method according to the second aspect.

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

In the embodiment of the application, the network side device sends control signaling to the 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 a network side device and forwarding the first message to a terminal; the second message from the terminal is received and forwarded 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 sending control signaling according to one embodiment of the present application;

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

fig. 4 is a schematic flow chart of a method of receiving 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 diagram of an intermediate node according to one embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an 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 following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the "first" and "second" distinguished objects generally are of the type and do not limit the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. However, the following description describes a New air interface (NR) system for purposes of example, and NR terminology is used in much of the following description, although the techniques are also applicable to applications other than NR system applications, such as generation 6 (6 ^th Generation, 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 device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: a bracelet, earphone, glasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (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, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and 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 method and the device for transmitting the control signaling provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

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

S202: transmitting control signaling for instructing 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.

The intermediate node mentioned in the embodiment of the present application may be a layer one (physical layer) relay, based on the control signaling, the intermediate node may receive the first/second message and forward the first/second message after amplification, 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 where the intermediate node receives and/or forwards the first message. For example, the control signaling is used to instruct the intermediate node to receive the time domain location of the first message; a time domain location for instructing the intermediate node to forward the first message (i.e., send the first message to the terminal); while indicating the time domain location at which the intermediate node receives and forwards 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, e.g., the control signaling is used to indicate a time domain location where the intermediate node receives the second message; and also for indicating to the intermediate node the time domain location at which the second message was forwarded (i.e., sent to the network side device); and may also be used to simultaneously indicate the time domain location at which the intermediate node receives and forwards the second message.

It will be appreciated that the two examples above are not in conflict when implemented and therefore may be implemented simultaneously, i.e. the control signaling may be used to indicate the time domain location where the intermediate node receives and/or forwards the first message, while indicating the time domain location where 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 location.

In one example, the control signaling is used to instruct the intermediate node to receive and/or forward beam information of the first message. 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 the first message to the terminal) the first message; and beam information for simultaneously instructing the intermediate node to receive and forward said first message.

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

Similarly, the two examples are implemented without conflict, and therefore, the two examples may be implemented simultaneously, that is, the control signaling may be used to instruct the intermediate node to receive and/or forward the beam information of the first message, and simultaneously 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 described in the above embodiments, the method for sending the control signaling provided in the embodiment of the present application may also be applied to a millimeter wave (FR 2) frequency band, so that the intermediate node may receive and forward the message through a narrower beam, thereby implementing a more accurate message forwarding function and improving communication efficiency.

Furthermore, the intermediate node mentioned in the embodiment of the present application may be a layer one (physical layer) relay, where the layer one relay does not need autonomous decision (such as beam information, time domain position, etc.), and receives and forwards the message based on the control signaling completely, so as to save design cost of the intermediate node.

According to the method for sending the control signaling, the network side equipment sends the control signaling to the intermediate node, and the control signaling is used for indicating the intermediate node to execute at least one of the following steps: receiving a first message from a network side device and forwarding the first message to a terminal; the second message from the terminal is received and forwarded 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 be further used to instruct the intermediate node to receive and/or forward the time domain position, the beam information, etc. of the first message/the second message, so that the intermediate node may determine the time domain position and transmit and receive the beam of the message, thereby enabling the intermediate node to accurately forward the message and improving the communication efficiency.

In fig. 3, for a downlink process, a network side device may send a first message to an intermediate node through a certain beam (PDCCH-R in fig. 3, where R represents a relay), and the intermediate node may forward the first message to a terminal through a certain beam, where the beam information and a time domain position of the first message may be indicated by a control signaling, and the control signaling may be sent by the network side device to the intermediate node in advance. The uplink process in fig. 3 is similar to the downlink process and will not be described here.

In order to describe the transmission method of the control signaling provided in the embodiments of the present application in detail, the following description will be made with reference to several specific embodiments.

Example 1

The first message in this embodiment includes a physical downlink control channel (Physical Downlink Control Channel, PDCCH) for scheduling transmission of the PDSCH described above and a physical downlink shared channel (Physical Downlink Share Channel, PDSCH); the second message includes a physical uplink control channel (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:

1) A Relay transmission configuration indication (Relay-Transmission Configuration Indicator, R-TCI) field for indicating the intermediate node to receive the PDCCH and the reception beam of 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 domain may not be included.

2) A transmission configuration indication (Transmission Configuration Indicator, TCI) field for instructing the intermediate node to forward the transmit beams 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 domain, the control signaling may also not include the TCI domain.

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 start time domain position and an end time domain position. For example, the time domain location information is used to indicate a starting time domain location of the PDCCH and the PDSCH that the intermediate node receives and/or forwards, and for another example, the time domain location information is used to indicate a starting time domain location and an ending time domain location of the PDCCH and the PDSCH that the intermediate node receives and/or forwards.

4) A PUCCH spatial relationship information identifier (PUCCH spatial relationship infoid), the PUCCH spatial relationship information identifier being used to instruct the intermediate node to receive the reception information of the PUCCH.

In one 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.

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

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

For the time domain location information mentioned in 3) above, in one example, the PDCCH and the PDSCH are non-continuously transmitted, wherein the starting time domain location includes a starting time domain location of the PDCCH and a starting time domain location 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.

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 include a start symbol location (or a start symbol and an end symbol location) of the control signaling (PDCCH) and a start symbol location (or a start symbol and an end symbol location) of the data (PDSCH), respectively.

For the time domain location information mentioned in 3) above, in one example, the first message is transmitted across time slots, wherein the time domain location information further comprises 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 also include slot information.

For the time domain position information mentioned in 3) above, in one example, the time domain position information is further used to indicate a time domain offset (such as Slot offset); wherein the time domain offset includes 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 and 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 a combination of any more of the above 1) to 5).

Example two

The first message in this embodiment comprises a PDCCH, the second message comprising a physical uplink shared channel (Physical Uplink Share Channel, PUSCH), the PDCCH being used for scheduling transmissions of the PUSCH.

1) And the R-TCI domain is used for indicating the intermediate node to receive the receiving 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 domain may not be included.

2) A time domain resource allocation (Time Domain Resource Allocation, TDRA) field for indicating a time slot, a symbol position, and a length of the PUSCH received by the intermediate node.

3) Sounding reference signal (Sounding Reference Signal, SRS) spatial relationship information for indicating the intermediate node to receive a reception beam of the PUSCH.

4) R spatial relationship information (R-spatial relationship info, where R may represent a relay) is used to instruct the intermediate node to forward the 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 the type of the control signaling. In this example, the network side device may distinguish the type of control signaling sent by the network side device to the intermediate node by 1 bit or multiple bits. The description of the type of control signaling can be found in 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 a terminal to receive the CSI-RS.

1) And an R-TCI field for indicating the intermediate node to receive a reception 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 domain may not be included.

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

3) Time slot information (e.g., aperiodic triggeringoffset) for indicating a time slot in which the intermediate node forwards the aperiodic CSI-RS.

4) And the CSI-RS time domain information is used for indicating the starting position and the length of the symbol of the aperiodic CSI-RS forwarded by the intermediate node.

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

Example IV

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

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

2) And period and offset information (such as periodic and offset) for indicating a period and slot offset of the intermediate node forwarding the periodic CSI-RS or semi-persistent CSI-RS.

3) Whether or not to repeat information, i.e., repetition (on, off), for indicating whether or not beams of the plurality of periodic CSI-RS or semi-persistent CSI-RS forwarded by the intermediate node are identical. The network side device may carry the repetition information in the control signaling sent to the intermediate node under the condition that the network side device configures the repetition parameter to the terminal.

4) And the CSI-RS time domain information is used for indicating the initial position and the length of the symbol of the periodical CSI-RS or the semi-persistent CSI-RS forwarded by the intermediate node.

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) for indicating a time domain position (e.g., slot position) at which the intermediate node receives the aperiodic SRS.

2) Spatially related information (spacialrelation info) for indicating the intermediate node to receive a reception beam of the aperiodic SRS;

3) And the SRS time domain information is used for indicating the initial position and the length of the symbol 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 (periodic and offset-p) indicating a period and slot offset by which the intermediate node receives the periodic SRS or semi-persistent SRS.

2) Spatially related information (spatial correlation info) for indicating the intermediate node to receive a reception beam of the periodic SRS or semi-persistent SRS;

3) And the SRS time domain information is used for indicating the symbol starting position and the 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 a combination of any more of the above 1) to 3).

Example seven

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

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

2) And the SSB number information is used for indicating the number of the SSBs received and/or forwarded by the intermediate node, and specifically can be the number of the SSBs in one period.

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

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

5) System frame number information (System Frame Number, SFN) for indicating time information for the intermediate node to forward the SSB. Specifically, the system frame number information may be used to assist the intermediate node in determining a specific forwarding time according to the SSB period, SSB time index, half frame bit.

The transmission method of the control signaling according to the embodiment of the present application is described in detail above in connection with fig. 2. A method for receiving control signaling according to another embodiment of the present application will be described in detail with reference to fig. 4. It will be appreciated that the interaction of the network side device with the intermediate node described at the intermediate node side is the same as the description of the network side device in the method shown in fig. 2, and the relevant description is omitted as appropriate to avoid repetition.

Fig. 4 is a schematic flow chart of an implementation of a method for receiving control signaling in the 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 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.

According to the control signaling receiving method provided by the embodiment of the application, the intermediate node receives the control signaling from the network side equipment, and the control signaling is used for indicating the intermediate node to execute at least one of the following steps: receiving a first message from a network side device and forwarding the first message to a terminal; the second message from the terminal is received and forwarded 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 first and second modules may, as one embodiment,

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

The control signaling is used to instruct the intermediate node to receive and/or forward the time domain location of the second message.

Alternatively, the first and second modules may, as one embodiment,

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

The control signaling is used to instruct 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 includes a physical uplink control channel PUCCH.

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

the relay transmission configuration indicates an R-TCI domain, wherein the R-TCI domain is used for indicating the intermediate node to receive the PDCCH and the PDSCH;

the transmission configuration indicates a TCI domain, wherein the TCI domain is used for indicating the intermediate node to forward the PDCCH and the PDSCH sending beam;

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

a PUCCH spatial relationship information identifier, where the PUCCH spatial relationship information identifier is used to instruct the intermediate node to receive the receiving information of the PUCCH;

Indication information for indicating the type of the control signaling.

Optionally, as an embodiment, the PDCCH and the PDSCH are transmitted discontinuously, 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, wherein 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 comprises an offset between a first time domain position and a second time domain position, the first time domain position being a time domain position at which the intermediate node receives the control signaling, the second time domain position being a time domain position at which 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, and the PDCCH is used for scheduling transmission of the PUSCH.

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

an R-TCI field, where the R-TCI field is configured to instruct the intermediate node to receive a reception beam of the PDCCH;

a time domain resource allocation TDRA domain, wherein the TDRA domain 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, wherein the SRS spatial relationship information is used for indicating the intermediate node to receive a receiving beam of the PUSCH;

r spatial relationship information, where the R spatial relationship information is used to instruct the intermediate node to forward the transmit beam of the PUSCH;

indication information for indicating the 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 for indicating the intermediate node to receive a reception beam of the aperiodic CSI-RS;

quasi co-located QCL information, where the QCL information is used to instruct the intermediate node to forward the transmission beam of the aperiodic CSI-RS;

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

And the CSI-RS time domain information is used for indicating the starting position and the length of the symbol of the aperiodic CSI-RS forwarded by the intermediate node.

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

period and offset information, the period and offset information being used to instruct the intermediate node to forward a period and slot offset of the periodic CSI-RS or semi-persistent CSI-RS;

whether information is repeated, wherein the whether information is used for indicating whether beams of a plurality of periodic CSI-RSs or semi-persistent CSI-RSs forwarded by the intermediate node are the same or not;

and the CSI-RS time domain information is used for indicating the initial position and the length of the symbol of the periodical CSI-RS or the semi-persistent CSI-RS forwarded by the intermediate node.

Optionally, as an embodiment, the first message includes a PDCCH, and the second message includes an aperiodic SRS, and 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, wherein the time domain position information is used for indicating the time domain position of the intermediate node for receiving the aperiodic SRS;

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

and the SRS time domain information is used for indicating the initial position and the length of the symbol 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 indicating a period and slot offset by which the intermediate node receives the periodic SRS or semi-persistent SRS;

spatial correlation information, where the spatial correlation information is used to instruct the intermediate node to receive a reception beam of the periodic SRS or the semi-persistent SRS;

and the SRS time domain information is used for indicating the symbol starting position and the 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 for indicating a period for the intermediate node to receive and/or forward the SSB;

SSB number information, where the SSB number information is used to indicate the number of SSBs received and/or forwarded by the intermediate node;

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

the field indication information is used for indicating whether the time domain position of the SSB received and/or forwarded by the intermediate node is in the front half frame or the rear half frame of one wireless frame;

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

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

a sending module 502, configured to send control signaling, where the control signaling is configured to instruct the intermediate node to perform at least one of: 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 of the present application, the network side device sends a control signaling to the 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 a network side device and forwarding the first message to a terminal; the second message from the terminal is received and forwarded 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 first and second modules may, as one embodiment,

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

indication information for indicating the type of the control signaling.

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

Indication information for indicating the 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 in the network side device 500 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and may achieve the same or equivalent technical effects, which are not described herein 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, an intermediate node 600 includes:

a receiving module 602, configured to receive control signaling, where the control signaling is configured 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 this embodiment of the present application, the 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 a network side device and forwarding the first message to a terminal; the second message from the terminal is received and forwarded 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 first and second modules may, as one embodiment,

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

indication information for indicating the type of the control signaling.

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

indication information for indicating the 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 of the method 400 corresponding to the embodiment of the present application, and each unit/module in the intermediate node 600 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 400, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 700, including a processor 701, a memory 702, and a program or an instruction stored in the memory 702 and capable of running on the processor 701, where, 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 foregoing embodiment of the method for sending control signaling, and the same technical effects can be achieved. When the communication device 700 is an intermediate node, the program or the instruction, when executed by the processor 701, implements the respective processes of the foregoing embodiments of the method for receiving control signaling, and the same technical effects can be achieved, so that repetition is avoided, and detailed description is omitted here.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits 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 processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

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

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

The baseband device 83 may also include a network interface 86 for interacting with the radio frequency device 82, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the memory 85 to perform the method performed by the modules shown in fig. 5, and achieve the same technical effects, and are not repeated here.

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 embodiment of the method for sending/receiving control signaling, and the same technical effect can be achieved, so that repetition is avoided, and no further description is provided herein.

The processor may be a 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 (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, implement each process of the foregoing embodiment of the method for sending/receiving control signaling, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.

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

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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method for transmitting control signaling, applied to a network side device, the method comprising:

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

wherein the first message includes a PDCCH and an aperiodic channel state information reference signal CSI-RS, and the control signaling includes at least one of:

the CSI-RS time domain information is used for indicating the initial position and the length of a symbol for forwarding the aperiodic CSI-RS by the intermediate node;

or alternatively, the process may be performed,

the first message includes a periodic CSI-RS or a semi-persistent CSI-RS, and the control signaling includes at least one of:

the CSI-RS time domain information is used for indicating the intermediate node to forward the symbol starting position and length of the periodical CSI-RS or the semi-persistent CSI-RS;

or alternatively, the process may be performed,

the first message includes a PDCCH, the second message includes an aperiodic SRS, the PDCCH is used to instruct the terminal to perform transmission of the aperiodic SRS, and the control signaling includes at least one of the following:

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

Or alternatively, the process may be performed,

the second message includes a periodic SRS or a semi-persistent SRS, and the control signaling includes at least one of:

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

or alternatively, the process may be performed,

the first message comprises a synchronization and broadcast block SSB, and the control signaling comprises at least one of:

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

3. A method according to claim 1 or 2, characterized in that,

4. The method of claim 1, wherein the first message comprises a physical downlink control channel, PDCCH, and a physical downlink shared channel, PDSCH, the PDCCH being used to schedule transmissions of the PDSCH; the second message includes a physical uplink control channel PUCCH.

5. The method of claim 4, wherein the first message comprises a PDCCH and a PDSCH, the PDCCH being used to schedule transmissions of the PDSCH; in the case that the second message includes a PUCCH, the control signaling includes at least one of:

indication information for indicating the type of the control signaling.

6. The method of claim 5, wherein the first message comprises a PDCCH and a PDSCH, the PDCCH being used to schedule transmissions of the PDSCH; in case that the second message includes a PUCCH, the PDCCH and the PDSCH are non-continuously transmitted, wherein,

7. The method of claim 5, wherein the first message comprises a PDCCH and a PDSCH, the PDCCH being used to schedule transmissions of the PDSCH; in the case that the second message includes a PUCCH, the first message is transmitted across slots, wherein the time domain location information further includes slot information of the first message.

8. The method of claim 5, wherein the first message comprises a PDCCH and a PDSCH, the PDCCH being used to schedule transmissions of the PDSCH; in the case that the second message includes a PUCCH, the time domain location information is further used to indicate a time domain offset;

9. The method of claim 1, wherein the first message comprises a PDCCH and the second message comprises a physical uplink shared channel, PUSCH, the PDCCH being used to schedule transmissions of the PUSCH.

10. The method of claim 9, wherein the control signaling comprises at least one of the following if the first message comprises a PDCCH and the second message comprises a PUSCH, the PDCCH being used to schedule transmissions of the PUSCH:

indication information for indicating the type of the control signaling.

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

receiving control signaling for instructing 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; receiving a second message from a terminal and forwarding the second message to the network side equipment;

or alternatively, the process may be performed,

Or alternatively, the process may be performed,

or alternatively, the process may be performed,

Or alternatively, the process may be performed,

12. The method of claim 11, wherein the step of determining the position of the probe is performed,

13. The method according to claim 11 or 12, wherein,

14. The method of claim 11, wherein the first message comprises a physical downlink control channel, PDCCH, and a physical downlink shared channel, PDSCH, the PDCCH being used to schedule transmissions of the PDSCH; the second message includes a physical uplink control channel PUCCH, and the control signaling includes at least one of:

Indication information for indicating the type of the control signaling.

15. The method of claim 11, wherein the first message comprises a PDCCH and the second message comprises a physical uplink shared channel, PUSCH, the PDCCH being used to schedule transmissions for the PUSCH, and wherein the control signaling comprises at least one of:

indication information for indicating the type of the control signaling.

16. A network side device, comprising:

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

or alternatively, the process may be performed,

17. An intermediate node, comprising:

a receiving module, configured to receive control signaling, where the control signaling is configured 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; receiving a second message from a terminal and forwarding the second message to the network side equipment;

or alternatively, the process may be performed,

18. A communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the method of sending control signalling according to any one of claims 1 to 10 or the method of receiving control signalling according to any one of claims 11 to 15.

19. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements a method of transmitting control signaling according to any one of claims 1 to 10, or implements a method of receiving control signaling according to any one of claims 11 to 15.