CN111130733B - Control information transmission method, device and equipment - Google Patents

Control information transmission method, device and equipment Download PDF

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Publication number
CN111130733B
CN111130733B CN201811296740.9A CN201811296740A CN111130733B CN 111130733 B CN111130733 B CN 111130733B CN 201811296740 A CN201811296740 A CN 201811296740A CN 111130733 B CN111130733 B CN 111130733B
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Prior art keywords
resources
resource
information
control information
resource set
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CN201811296740.9A
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CN111130733A (en
Inventor
张兴炜
王俊伟
温容慧
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201811296740.9A priority Critical patent/CN111130733B/en
Priority to PCT/CN2019/114565 priority patent/WO2020088564A1/en
Publication of CN111130733A publication Critical patent/CN111130733A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a control information transmission method, a control information transmission device and control information transmission equipment, wherein the method comprises the following steps: the method comprises the steps that a first device sends first information to a second device, wherein the first information is used for indicating a first resource set; the first device sends control information to the second device on resources in the first set of resources. The complexity of blind detection of the terminal equipment is reduced, and the power consumption of the terminal equipment is saved.

Description

Control information transmission method, device and equipment
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for controlling information transmission.
Background
In various communication scenarios, such as a Device-to-Device (D2D) communication scenario, a Vehicle-to-any Device (V2X) communication scenario, a Machine Type Communication (MTC) scenario, a Machine-to-Machine (Machine to Machine) communication scenario, etc., two parties of communication are peer-to-peer devices, and any Device can directly transmit signals to other devices without the intermediary of a base station.
In the above communication scenario, the transmitting device may transmit control information to the receiving device through resources in the control information resource pool, instruct, through the control information, resource information used by the transmitting device to transmit data information, and the like. Accordingly, the receiving device may blindly detect the control information sent by the sending device in the resource pool, and receive the data information sent by the sending device according to the control information. In most cases, the complexity of blind detection of control information by the receiving device in the resource pool is high.
Disclosure of Invention
The application provides a control information transmission method, device and equipment, which reduces the complexity of blind detection of terminal equipment and saves the power consumption of the terminal equipment.
In a first aspect, the present application provides a control information transmission method, which may include: the first device sends first information indicating the first set of resources to the second device, and sends control information to the second device on resources in the first set of resources.
In the above process, after the first device sends the first information to the second device, the first device only sends the control information to the second device on the resources in the first resource set, and correspondingly, the second device only blindly detects the control information sent by the first device in the first resource set, so that the blind detection range of the second device is narrowed, the blind detection complexity of the terminal device is reduced, and the power consumption of the terminal device is saved.
In one possible implementation, the first set of resources is a subset of a second set of resources, and the resources in the second set of resources are used for transmitting control information of the sidelink. In the prior art, the second device blindly detects the control information of the first device in the second resource set, and in the present application, the second device blindly detects the control information of the first device in the first resource set, and since the first resource set is a subset of the second resource set, the blind detection range of the second device is reduced, the blind detection complexity of the terminal device is reduced, and the power consumption of the terminal device is saved.
In a possible embodiment, the first information includes at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number; the time range is used for indicating the first device to transmit the control information on the resources in the first resource set within the time range, and the effective times are used for indicating the times of the first device to transmit the control information on the resources in the first resource set.
In the actual application process, the time range and the effective times included in the first information can be flexibly set according to actual needs, and then the second device is instructed to detect the control information sent by the first device in the first resource set within different time ranges and effective times, so that the flexibility of control information transmission is improved.
In one possible embodiment, the first set of resources satisfies at least one of the following conditions: the energy detected by the first device on a resource of the first set of resources is less than a first threshold; the first device does not detect control information on resources in the first set of resources.
When the first set of resources satisfies: when the energy detected by the first device on the resource in the first resource set is less than the first threshold, because the resource in the first resource set is a resource with lower energy detected by the first device, when the first device transmits the control information on the resource in the first resource set, the first device has less interference to other devices that have used the resource in the first resource set. The control information is sent on the resource with lower energy, the interference of the first equipment to other equipment is smaller, and the signal-to-noise ratio of the control information which can be transmitted on the first resource by the first equipment is larger.
When the first set of resources satisfies: when the first device does not detect control information on resources in the first set of resources, since no other control information is transmitted on resources in the first set of resources, the first device has less interference to other devices that have used resources in the first set of resources when the first device transmits control information on resources in the first set of resources. When the control information is sent on the resource where the control information sent by other equipment is not detected, the interference of the first equipment on the other equipment is small, and therefore the signal-to-noise ratio of the control information which can be transmitted on the first resource by the first equipment is large.
In a possible implementation manner, before the first device sends the first information to the second device, the method further includes: the first device receiving at least one set of resources from a third device, the third device comprising at least one of a base station or a synchronization source or a group head; the first set of resources is one of at least one set of resources.
The third device determines at least one resource set for the first device, so that the first device only needs to select one resource set from the at least one resource set as the first resource set, and the first device can quickly determine the first resource set.
In one possible implementation, the sending, by the first device, the first information to the second device includes: the first device sends first signaling to the second device, wherein the first signaling comprises first information.
In a possible implementation, the first signaling is carried on a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; alternatively, the first signaling is RRC signaling or a synchronization signal.
In one possible embodiment, the first set of resources comprises at least one subchannel and/or a part of resources in at least one subchannel.
In one possible embodiment, the first set of resources includes at least one of time domain resources, frequency domain resources, code domain resources, spatial domain resources, and power domain resources.
In a possible implementation, the first set of resources is a set of resources for which the second device blindly detects control information of the first device.
In one possible embodiment, the at least one set of resources is transmitted by the third device via at least one of a physical sidelink broadcast channel, RRC signaling, or a synchronization signal.
In one possible embodiment, the second set of resources is a set of resources for transmitting sidelink control information; or, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information.
In a second aspect, the present application provides a control information transmission method, which may include: the second equipment receives first information, and the first information is used for indicating a first resource set; the second device detects the control information sent by the first device in the first set of resources.
In the above process, after the first device sends the first information to the second device, the first device only sends the control information to the second device on the resources in the first resource set, and correspondingly, the second device only blindly detects the control information sent by the first device in the first resource set, so that the blind detection range of the second device is narrowed, the blind detection complexity of the terminal device is reduced, and the power consumption of the terminal device is saved.
In one possible implementation, the first set of resources is a subset of a second set of resources, and the resources in the second set of resources are used for transmitting control information of the sidelink. In the prior art, the second device blindly detects the control information of the first device in the second resource set, and in the present application, the second device blindly detects the control information of the first device in the first resource set, and since the first resource set is a subset of the second resource set, the blind detection range of the second device is reduced, the blind detection complexity of the terminal device is reduced, and the power consumption of the terminal device is saved.
In a possible embodiment, the first information includes at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number; the time range is used for indicating the first device to transmit the control information on the resources in the first resource set within the time range, and the effective times are used for indicating the times of the first device to transmit the control information on the resources in the first resource set.
In the actual application process, the time range and the effective times included in the first information can be flexibly set according to actual needs, and then the second device is instructed to detect the control information sent by the first device in the first resource set within different time ranges and effective times, so that the flexibility of control information transmission is improved.
In one possible embodiment, the first set of resources satisfies at least one of the following conditions: the energy detected by the first device on a resource of the first set of resources is less than a first threshold; the first device does not detect control information on resources in the first set of resources; the first set of resources is one of at least one set of resources received by the first device, the at least one set of resources is received by the first device from a third device, and the third device comprises at least one of a base station or a synchronization source.
When the first set of resources satisfies: when the energy detected by the first device on the resource in the first resource set is less than the first threshold, because the resource in the first resource set is a resource with lower energy detected by the first device, when the first device transmits the control information on the resource in the first resource set, the first device has less interference to other devices that have used the resource in the first resource set. The control information is sent on the resource with lower energy, the interference of the first equipment to other equipment is smaller, and the signal-to-noise ratio of the control information which can be transmitted on the first resource by the first equipment is larger.
When the first set of resources satisfies: when the first device does not detect control information on resources in the first set of resources, since no other control information is transmitted on resources in the first set of resources, the first device has less interference to other devices that have used resources in the first set of resources when the first device transmits control information on resources in the first set of resources. When the control information is sent on the resource where the control information sent by other equipment is not detected, the interference of the first equipment on the other equipment is small, and therefore the signal-to-noise ratio of the control information which can be transmitted on the first resource by the first equipment is large.
When the first set of resources satisfies: when the first resource set is one of the at least one resource set received by the first device, the third device determines the at least one resource set for the first device, so that the first device only needs to select one resource set from the at least one resource set as the first resource set, and further the first device can quickly determine the first resource set.
In one possible implementation, the second device receives the first information, including: the second device receives a first signaling sent by the first device, wherein the first signaling comprises first information.
In a possible implementation, the first signaling is carried on a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; alternatively, the first signaling is RRC signaling or a synchronization signal.
In a possible implementation, the first set of resources is a set of resources for which the second device blindly detects control information of the first device.
In one possible embodiment, the at least one set of resources is transmitted by the third device via at least one of a physical sidelink broadcast channel, RRC signaling, or a synchronization signal.
In one possible embodiment, the second set of resources is a set of resources for transmitting sidelink control information; or, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information.
In a third aspect, the present application provides a method for transmitting control information, including: the method comprises the steps that a first device determines a first resource set, wherein the first resource set is a set of resources used by the first device for sending control information; the first equipment determines resource information of the second information according to the first resource set; and the first equipment sends the second information to the second equipment according to the resource information.
In the above process, the first device determines a first resource set for transmitting the control information, determines resource information of second information to be transmitted according to the first resource set, and transmits the second information according to the resource information. After the second device receives the second information, resource information is determined according to resources used by the second information, a first resource set is determined according to the resource information, and control information sent by the first device is detected in the first resource set in a blind mode. The blind detection range of the second equipment is narrowed, the complexity of blind detection of the terminal equipment is reduced, and the power consumption of the terminal equipment is saved. Furthermore, the first device does not need to send information to the second device separately to indicate the first resource set, thereby saving signaling overhead.
In one possible embodiment, the resource information includes at least one of a resource location, a resource quantity, or a resource index.
In one possible implementation, the second information is carried in at least one of a physical side row control channel, a physical side row shared channel, a physical side row broadcast channel, and a synchronization signal.
In a fourth aspect, the present application provides a control information transmission method, including: the second equipment receives second information sent by the first equipment; the second equipment determines a first resource set according to the resource information of the second information; the second device detects the control information sent by the first device in the first set of resources.
In the above process, after the second device receives the second information, the resource information is determined according to the resource used by the second information, the first resource set is determined according to the resource information, and the control information sent by the first device is blindly detected in the first resource set. The blind detection range of the second equipment is narrowed, the complexity of blind detection of the terminal equipment is reduced, and the power consumption of the terminal equipment is saved. Furthermore, the first device does not need to send information to the second device separately to indicate the first resource set, thereby saving signaling overhead.
In one possible embodiment, the resource information includes at least one of a resource location, a resource quantity, or a resource index.
In one possible implementation, the second information is carried in at least one of a physical side row control channel, a physical side row shared channel, a physical side row broadcast channel, and a synchronization signal.
In a fifth aspect, the present application provides a control information transmission method, including: the third device determines at least one set of resources of the first device; the third device sends, to the first device, indication information indicating the at least one resource set, where the indication information is used to enable the first device to determine a first resource set in the at least one resource set, and a resource in the first resource set is a resource used by the first device to send control information.
The third device determines at least one resource set for the first device, so that the first device only needs to select one resource set from the at least one resource set as the first resource set, and the first device can quickly determine the first resource set.
In a possible implementation, the third device sends, to the first device, indication information indicating the at least one resource set, including: the third device sends the indication information to the first device through at least one of a physical sidelink broadcast channel, RRC signaling, or a synchronization signal.
In one possible implementation, the third device includes at least one of a base station or a synchronization source.
In a sixth aspect, the present application provides a control information transmission apparatus, comprising a sending module, wherein,
the sending module is configured to send first information to a second device, where the first information is used to indicate a first resource set;
the sending module is further configured to send control information to the second device on a resource in the first resource set.
In a possible implementation, the first set of resources is a subset of a second set of resources, and the resources in the second set of resources are used for transmitting control information of a sidelink.
In a possible embodiment, the first information includes at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for instructing the first device to transmit control information on the resources in the first resource set in the time range, and the valid times are used for instructing the first device to transmit the control information on the resources in the first resource set.
In one possible embodiment, the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device does not detect control information on resources in the first set of resources.
In a possible embodiment, the apparatus further comprises a receiving module, wherein,
the receiving module is configured to receive at least one resource set from a third device before the sending module sends the first information to the second device, where the third device includes at least one of a base station, a synchronization source, or a group header; the first set of resources is one of the at least one set of resources.
In a possible implementation manner, the sending module is specifically configured to:
and sending first signaling to the second equipment, wherein the first signaling comprises first information.
In a possible implementation, the first signaling is carried on a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
In a possible embodiment, the first set of resources comprises at least one subchannel and/or a part of resources in the at least one subchannel.
In one possible embodiment, the first set of resources includes at least one of time domain resources, frequency domain resources, code domain resources, spatial domain resources, and power domain resources.
In a seventh aspect, the present application provides a control information transmission apparatus, including a receiving module and a processing module, wherein,
the receiving module is configured to receive first information, where the first information is used to indicate a first resource set;
the processing module is configured to detect, in the first set of resources, control information sent by the first device.
In a possible implementation, the first set of resources is a subset of a second set of resources, and the resources in the second set of resources are used for transmitting control information of a sidelink.
In a possible embodiment, the first information includes at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for instructing the first device to transmit control information on the resources in the first resource set in the time range, and the valid times are used for instructing the first device to transmit the control information on the resources in the first resource set.
In one possible embodiment, the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device detecting no control information on a resource in the first set of resources;
the first set of resources is one of at least one set of resources received by the first device, the at least one set of resources is received by the first device from a third device, and the third device includes at least one of a base station or a synchronization source.
In a possible implementation manner, the receiving module is specifically configured to receive a first signaling sent by the first device, where the first signaling includes first information.
In a possible implementation, the first signaling is carried on a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
In an eighth aspect, the present application provides a control information transmission apparatus, comprising a processing module and a sending module, wherein,
the processing module is configured to determine a first resource set, where the first resource set is a set of resources used by the first device to send the control information;
the processing module is further configured to determine resource information of second information according to the first resource set;
the sending module is configured to send the second information to the second device according to the resource information.
In a possible implementation, the resource information includes at least one of a resource location, a resource quantity, or a resource index.
In a possible implementation manner, the second information is carried in at least one of a physical side row control channel, a physical side row shared channel, a physical side row broadcast channel, and a synchronization signal.
In a ninth aspect, the present application provides a control information transmission apparatus, comprising a receiving module and a processing module, wherein,
the receiving module is used for receiving second information sent by the first equipment;
the processing module is used for determining a first resource set according to the resource information of the second information;
the processing module is further configured to detect, in the first set of resources, control information sent by the first device.
In a possible implementation, the resource information includes at least one of a resource location, a resource quantity, or a resource index.
In a possible implementation manner, the second information is carried in at least one of a physical side row control channel, a physical side row shared channel, a physical side row broadcast channel, and a synchronization signal.
In a tenth aspect, the present application provides a control information transmission apparatus, which includes a memory and a processor, wherein the processor executes program instructions in the memory, so as to implement the control information transmission method according to any one of the first aspect.
In an eleventh aspect, the present application provides a control information transmission device, which includes a memory and a processor, wherein the processor executes program instructions in the memory, so as to implement the control information transmission method according to any one of the second aspect.
In a twelfth aspect, the present application provides a control information transmission device, which includes a memory and a processor, wherein the processor executes program instructions in the memory, so as to implement the control information transmission method according to any one of the third aspect.
In a thirteenth aspect, the present application provides a control information transmission apparatus, comprising a memory and a processor, wherein the processor executes program instructions in the memory, so as to implement the control information transmission method according to any one of the above fourth aspects.
In a fourteenth aspect, the present application provides a storage medium, wherein the storage medium is used for storing a computer program, and the computer program is used for implementing the control information transmission method according to any one of the above first aspects.
In a fifteenth aspect, the present application provides a storage medium, wherein the storage medium is used for storing a computer program, and the computer program is used for implementing the control information transmission method according to any one of the second aspect.
In a sixteenth aspect, the present application provides a storage medium, wherein the storage medium is used for storing a computer program, and the computer program is used for implementing the control information transmission method according to any one of the third aspect.
A seventeenth aspect of the present application provides a storage medium, wherein the storage medium is used for storing a computer program, and the computer program is used for implementing the control information transmission method according to the fourth aspect.
According to the control information transmission method, the control information transmission device and the control information transmission equipment, the first equipment sends the first information used for indicating the first resource set to the second equipment, and the first resource set is a set of resources used for the first equipment to send the control information to the second equipment.
Drawings
FIG. 1 is a schematic diagram of a resource pool provided herein;
FIG. 2 is a schematic diagram of another resource pool provided herein;
FIG. 3 is a schematic diagram of an application architecture according to an embodiment of the present application;
FIG. 4 is an architectural diagram of a vehicle networking system provided herein;
fig. 5 is a schematic flowchart of a control information transmission method provided in the present application;
fig. 6 is a schematic flowchart of another control information transmission method provided in the present application;
fig. 7 is a schematic structural diagram of a control information transmission apparatus provided in the present application;
fig. 8 is a schematic structural diagram of another control information transmission device provided in the present application;
fig. 9 is a schematic structural diagram of another control information transmission device provided in the present application;
fig. 10 is a schematic structural diagram of another control information transmission device provided in the present application;
fig. 11 is a schematic structural diagram of another control information transmission apparatus provided in the present application;
fig. 12 is a schematic diagram of a hardware structure of a control information transmission device provided in the present application;
fig. 13 is a schematic diagram of a hardware structure of another control information transmission apparatus provided in the present application;
fig. 14 is a schematic diagram of a hardware structure of another control information transmission apparatus provided in the present application;
fig. 15 is a schematic diagram of a hardware structure of a control information transmission device according to the present application.
Detailed Description
For the sake of facilitating an understanding of the present application, a communication system to which the present application is applicable and an apparatus to which the present application relates will be first described.
The technical solution shown in The present application can be applied to a fifth Generation mobile Communication technology (5G) system, for example, a vehicle to electronic (V2X) system, a Device to Device (D2D) system, a Machine Type Communication (MTC) system, and The like in The 5G Communication system. The present invention can also be applied to Long Term Evolution (LTE) systems, such as V2X System, D2D System, MTC System, etc. in LTE Communication System, and can also be applied to Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UMTS) System, or Radio Access Network (GSM EDGE Radio Access Network, GERAN) architecture of Global System for Mobile communications (GSM) for GSM/Enhanced Data Rate GSM Evolution (EDGE) System. In the UTRAN architecture or/GERAN architecture, the function of the Mobility Management Entity (MME) is completed by a Serving General Packet Radio Service (GPRS) Support Node (SGSN), and the function of the Serving Gateway (S-GW) \ Public Data Network Gateway (P-GW) is completed by a Gateway GPRS Support Node (GGSN). The technical solution shown in the present application may also be applied to other communication systems, such as a Public Land Mobile Network (PLMN) system, and the like, which is not limited in the present application.
The present application relates to terminal devices (e.g., a first device and a second device shown in the present application), which may be devices that include a wireless transceiving function and may provide a communication service to a user. Specifically, the terminal device may be a device in a V2X system, a device in a D2D system, a device in an MTC system, or the like. For example, a terminal device may refer to an industrial robot, an industrial automation device, a terminal device, a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless terminal device, a User agent, or a User Equipment. For example, the terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a network behind 5G, which is not limited in this application.
The application also relates to a network device, which may be a device for communicating with a terminal device. For example, the network device may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB, eNodeB) in an LTE system, or a radio Base Station (gbodeb, gNB) in a 5G system. Alternatively, the network device may also be a relay station, an access point, an in-vehicle device, a wearable device, and a network-side device in a network after 5G or a network device in a PLMN network for future evolution, a Road Site Unit (RSU), and the like.
It should be noted that the terminal device shown in this application may be located within a network coverage range of the network device, or may be located outside the network coverage range of the network device. When the terminal device is located within the network coverage of the network device, the network device may allocate resources to the terminal device, and when the terminal device is located outside the network coverage of the network device, the terminal device may acquire the resources in other manners. The resources related to the present application may include at least one of time domain resources, frequency domain resources, code domain resources, space domain resources, and power domain resources. One resource described in the following embodiments may be one symbol, one slot, etc. of a time domain resource. One Resource described in the following embodiments may be a Resource Block (RB) of a frequency domain Resource, and the like. One resource described in the following embodiments may be a root sequence of code domain resources, a mask, a scrambling code, a cyclic shift, a comb, etc. When the resource is a spatial domain resource, a resource described in the following embodiments may be a codeword, a stream, a layer, an antenna port, and the like. One resource described in the following embodiments may be a power value, a power range, a power offset, a power threshold, etc. of the power domain resource.
The method of the embodiment of the application can be used for a unicast scene, and can also be applied to a multicast scene or a broadcast scene. The terminal device of the receiving party may be one, multiple or unlimited, and the corresponding communication mode is unicast, multicast or broadcast. For example, in a unicast scenario, terminal device 0 (the sending end) sends information on link a, and terminal device 1 (the receiving end) may receive information on link a. In a multicast scenario, the terminal device 0 sends information on the link a, and the terminal device 2 (receiving end) and the terminal device 3 (receiving end) located in the same group as the terminal device 0 can receive information on the link a. In a broadcast scenario, terminal device 0 sends information on link a, and any terminal device that can receive the information of terminal device 0 can receive the information on link a.
In a unicast scenario, a sender may establish links with multiple receivers. For example, for the transmitting-end terminal device 0, the terminal device 0 can independently communicate with a plurality of terminal devices. For example, terminal device 0 establishes link a with terminal device 1, terminal device 0 sends information on link a, and terminal device 1 receives information on link a. Terminal device 0 establishes link B with terminal device 2, terminal device 0 sends information on link B, and terminal device 2 receives information on link B.
It should be noted that the resource pool in the embodiment of the present application may also be BWP (BandWidth Part). For example BWP for sidelink transmission. The control resource pool in the embodiment of the present application may be BWP for sidelink control transmission. The data resource pool in the embodiment of the present application may be BWP for sideline data transmission.
Alternatively, the resource pool in the embodiment of the present application is a resource pool in BWP or a resource pool in carrier. Such as a resource pool in BWP. The control resource pool in the embodiment of the present application may be a control resource pool for sidelink control transmission in BWP. The data resource pool in the embodiment of the present application may be a data resource pool for use in sidestream data transmission in BWP.
Next, a method of acquiring resources by the terminal device will be described.
The first method comprises the following steps: the terminal equipment is positioned in the network coverage range of the network equipment
In this case, optionally, the network device may allocate resources to the terminal device in a resource scheduling manner. Or, the network device may allocate a resource pool to multiple terminal devices, and the multiple terminal devices obtain resources in the resource pool in a contention manner. The network device may allocate mutually independent resource pools for the control information and the data information, or allocate a shared resource pool for the control information and the data information. The control information according to the present application may be control information of a sidelink (sidelink), and the data information shown in the present application may be data information of a sidelink. For convenience of description, details are not repeated in the following embodiments. Specifically, see the following two possible implementations:
one possible implementation is: resource pools of control information and data information are independent of each other
Next, a control resource pool for transmitting control information and a data resource pool for transmitting data information will be described in detail with reference to fig. 1.
Fig. 1 is a schematic diagram of a resource pool provided in the present application. Referring to fig. 1, a network device allocates a data resource pool a and a control resource pool B for a terminal device. The resources in the data resource pool a are only used for the terminal device to send data information, and the resources in the control resource pool are only used for the terminal device to send control information. The data resource pool A and the control resource pool B are independent.
The plurality of terminal devices can all transmit data information through resources in the data resource pool A, and the plurality of terminal devices can all transmit control information through controlling the resources in the resource pool. For example, the terminal device may transmit data information (data) through resource a1 in the data resource pool, and the terminal device may transmit control information through resource B1 in the control resource pool, e.g., the control information may be Scheduling Assignment (SA).
Optionally, the Control Information related to the present application may include bypass Control Information (SCI), bypass Feedback Information (SFCI), and the like.
The control resource pool described in the present application refers to a set of resources for transmitting control information, but the set of resources for transmitting control information may be referred to as other terms, for example, a control BWP (BandWidth Part) or a control subchannel set. The data resource pool described in the present application refers to a set of resources for transmitting data information, but the set of resources for transmitting data information may be referred to as other terms, for example, a data BWP, a data subchannel set, and the like.
Another possible implementation: control information and data information sharing resource pool
The shared resource pool for transmitting control information and data information will be described in detail below with reference to fig. 2.
Fig. 2 is a schematic diagram of another resource pool provided in the present application. Referring to fig. 2, a network device allocates a shared resource pool C to a terminal device, and resources in the shared resource pool C are used for the terminal device to send data information and control information.
A plurality of terminal devices may each transmit data information and control information via resources in the shared resource pool C. For example, the UE1 may transmit data information over resource C1 in the resource pool and the UE1 may transmit control information over resource C2 in the resource pool. For example, the UE2 may transmit data information over resource C3 in the resource pool and the UE3 may transmit control information over resource C4 in the resource pool.
It should be noted that the shared resource pool described in the present application refers to a set of resources that can transmit both data information and control information, and of course, the set of resources that can transmit both data information and control information may be referred to by other terms, for example, a unicast resource pool, a multicast resource pool, a broadcast resource pool, and the like.
And the second method comprises the following steps: the terminal equipment is located outside the network coverage range of the network equipment
In this case, optionally, the terminal device may acquire the resource in a contention manner in the predefined bandwidth.
For example, the predefined bandwidth may be a dedicated carrier bandwidth, or a portion of the bandwidth on a dedicated carrier.
To facilitate understanding of the present application, a system architecture diagram applicable to the solution shown in the present application is described below with reference to fig. 3.
Fig. 3 is a schematic diagram of an application architecture according to an embodiment of the present application. Referring to fig. 3, a plurality of terminal devices, which are respectively denoted as terminal device 301, terminal device 302, and terminal device 303, are included.
Wherein, two terminal equipments can communicate with each other. In general, a direct link between terminal devices is called a sidelink (sidelink).
Alternatively, one terminal device may determine a first set of resources for transmitting control information and transmit first information indicating the first set of resources to other terminal devices in communication therewith. Therefore, when the control information sent by the terminal equipment is detected in a blind mode by other terminal equipment, only the detection is carried out in the resources of the first resource set, the blind detection range of the terminal equipment is further narrowed, the blind detection complexity of the terminal equipment is reduced, and the power consumption of the terminal equipment is saved.
Alternatively, the application system architecture shown in fig. 3 may be applied to a car networking system, and based on the embodiment shown in fig. 3, the architecture of the car networking system is described below by using the embodiment shown in fig. 4.
Fig. 4 is an architecture diagram of the car networking system provided in the present application. Referring to fig. 4, a first vehicle 401, a second vehicle 402, a pedestrian 403, and a network device 404 are included.
Among other things, in a Vehicle-to-Vehicle (V2V) system, a first Vehicle 401 may communicate with a second Vehicle 402. In a Vehicle-to-Pedestrian (V2P) system, a first Vehicle 401 may communicate with a Pedestrian 403. In a Vehicle-to-Infrastructure (V2I) system, a first Vehicle 401 may communicate with an Infrastructure.
Alternatively, the infrastructure equipment may include a Road Side Unit (RSU) RSU, which may include a terminal type RSU, for example, a non-mobility device disposed at a Road Side, and a base station type RSU, which may provide a timing synchronization service, a resource scheduling service, and the like for a vehicle communicating therewith.
Optionally, the V2I system may also include a Vehicle-to-Network (V2N) system.
It should be noted that fig. 3 to fig. 4 illustrate application architectures applied to the present application by way of example only, and of course, the application architectures applied to the present application may also include others, and the present application is not limited in this respect.
The technical means shown in the present application will be described in detail below with reference to specific examples. It should be noted that the following specific embodiments may exist alone or in combination with each other, and the description of the same or similar contents is not repeated in different embodiments.
Fig. 5 is a flowchart illustrating a control information transmission method according to the present application. The first device and the second device are terminal devices capable of performing sidelink communication. Referring to fig. 5, the method may include:
s501, the first device determines a first resource set.
The first resource set is a set of resources used by the first device to transmit the control information.
The first resource set comprises at least one of time domain resources, frequency domain resources, code domain resources, spatial domain resources, and power domain resources. The resources in the first set of resources may comprise frequency domain resources such as an index of resource blocks, RBs, number of sub-channels, sub-channel index, identification of RBs in a sub-channel. The resources in the first set of resources may include time domain resources such as symbol position (including start symbol or end symbol), number of symbols, slot position (including start slot or end slot), number of slots, etc. The first set of resources may include code domain resources such as root sequences, masks, scrambling codes, cyclic shifts, comb fingers, and so on. The first set of resources may include spatial resources such as codewords, streams, layers, number of antennas, number of antenna ports, and the like. The first set of resources may include power domain resources such as power values, power ranges, power offsets, power thresholds, and the like.
Optionally, the first device may determine the first set of resources in the second set of resources, where the resources in the second set of resources are used for sending control information of the sidelink, and the first set of resources is a subset of the second set of resources.
Optionally, the first set of resources may be a proper subset of the second set of resources. That is, the first set of resources is part of the second set of resources.
Optionally, the second resource set is a set of resources for transmitting sidelink control information; or, the second resource set is a set of resources used for transmitting sidelink control information in a third resource set, and the third resource set is a set of resources used for transmitting sidelink control information and data information.
For example, the second set of resources may be a PSCCH resource pool, a resource pool shared by the PSCCH and the PSCCH, or a resource available for PSCCH transmission in the resource pool shared by the PSCCH and the PSCCH.
In other words, the first set of resources is a subset of the PSCCH resource pool.
Optionally, the resource in the first resource set may be an available resource (available resources) of the first device, which is determined by the first device in the second resource set, where the available resource is a resource set obtained by the sending terminal by detecting energy or decoding a PSCCH of another user and excluding resources occupied by the other user.
Optionally, the first set of resources may include at least one subchannel and/or a part of resources in the at least one subchannel.
For example, if a sub-Channel for carrying a Physical Sidelink Control Channel (PSCCH) is located in a dedicated region in a Control information resource pool or a shared resource pool (the dedicated region refers to a region in the shared resource pool that is only used for transmitting Control information), the sub-Channel is only used for carrying the PSCCH. In this case, at least one subchannel is included in the first set of resources.
For example, if only part of the resources of a subchannel are used to carry the PSCCH, the first set of resources may comprise part of the resources of at least one subchannel. For example, if 3 subchannels in the Shared resource pool are used to carry the PSCCH, and 2 low-frequency RBs of the 3 subchannels are used to carry the PSCCH, and the remaining resources are used to transmit a Physical Sidelink Shared Channel (PSCCH), it is determined that the first resource set includes a part of resources in the 3 subchannels.
For example, if all the sub-channels for carrying the PSCCH are located in the shared resource pool, and only part of the resources in one part of the sub-channels for carrying the PSCCH are used for carrying the PSCCH, and all the resources in the other part of the sub-channels for carrying the PSCCH are used for carrying the PSCCH, the first set of resources may include at least one sub-channel and part of the resources in the at least one sub-channel. For example, if the resources in sub-channel 1 and sub-channel 2 in the shared resource pool are both used for carrying PSCCH, and the low-frequency 2 RBs in sub-channel 3 and sub-channel 4 are used for carrying PSCCH, it is determined that the first resource set includes sub-channel 1, sub-channel 2, the low-frequency 2 RBs in sub-channel 3, and the low-frequency 2 RBs in sub-channel 4.
Optionally, the second resource set may be a resource set in a control information resource pool allocated by the network device for the terminal device. For example, the second set of resources may be resource pool B in fig. 1.
Optionally, the second resource set may be a set of resources, which are allocated to the terminal device by the network device and used for transmitting control information in a shared resource pool, where the resources in the shared resource pool are used for transmitting control information and data information. For example, the second set of resources may be resource pool C in fig. 2.
Optionally, the second set of resources may also be a predefined set of resources for transmitting control information.
Optionally, the first device may determine the first set of resources through at least three possible implementations as follows:
one possible implementation is:
the first device performs energy detection on resources in the second set of resources and determines the first set of resources according to the detected energy.
If the energy detected by the first device on one resource in the second set of resources is low, it indicates that the interference between the first device and other devices already using the resource is small when the first device uses the resource.
Optionally, the first device may detect energy on M resources in the second set of resources, and if the detected energy on one resource is less than the first threshold, may determine that the resource is a resource in the first set of resources. That is, the energy detected by the first device on a resource in the first set of resources is less than the first threshold. In practical application, the first threshold value can be set according to practical requirements.
Optionally, the first device may further detect energies on M resources in the second resource set, rank the energies detected on M resources, and determine N resources with the minimum detected energy as resources in the first resource set, where N is an integer greater than 1. In the practical application process, the size of N can be set according to the practical requirement.
In this possible implementation, since the resources in the first set of resources are the resources with lower energy detected by the first device, when the first device transmits the control information on the resources in the first set of resources, the first device has less interference to other devices that have used the resources in the first set of resources. The control information is sent on the resource with lower energy, the interference of the first equipment to other equipment is smaller, and the signal-to-noise ratio of the control information which can be transmitted on the first resource by the first equipment is larger.
Another possible implementation:
the first device detects control information sent on resources in the second set of resources to determine the first set of resources.
Optionally, if the first device does not detect the control information sent by the other device on one resource in the second resource set, the resource may be determined as a resource in the first resource set. That is, the first device does not detect control information on resources in the first set of resources.
In this possible implementation, since no other control information is transmitted on the resources in the first set of resources, the first device has less interference to other devices that have used the resources in the first set of resources when the first device transmits control information on the resources in the first set of resources. When the control information is sent on the resource where the control information sent by other equipment is not detected, the interference of the first equipment on the other equipment is small, and therefore the signal-to-noise ratio of the control information which can be transmitted on the first resource by the first equipment is large.
Yet another possible implementation:
the first device receives at least one resource set sent by the third device, and the first device determines a first resource set in the at least one resource set.
Or the third device sends only one resource set to the first device, and the first device determines the one resource set as the first resource set.
Optionally, the third device may send to the first device an identification of a resource of the multiple sets of resources. The third device may also send an identification of the plurality of sets of resources to the first device. The third device may also send the identification of the at least one set of resources and the plurality of sets of resources to other devices. For example, the third device may broadcast, multicast, or unicast the identification of the at least one set of resources and the plurality of sets of resources.
For example, the correspondence between the resource set identifier and the resource set may be as shown in table 1:
TABLE 1
Identification of resource collections Resource collection
00 Sub-channel 1, sub-channelWay 2
01 Subchannel 2, subchannel 3
10 Sub-channel 6, RB1 and RB2 in sub-channel 7
Optionally, the third device may be a base station or a synchronization source. For example, when the first device is within the network coverage of a base station, then the third device may be the base station. When the first device is not within the network coverage of the base station, then the third device may be a synchronization source or a group head. A synchronization source is a device that sends synchronization signals to other devices, which may be used for clock synchronization, etc. The group head may allocate resources for other devices, manage group membership joining and leaving, etc. For a fleet scenario, the fleet head may be located anywhere in the fleet, preferably in the middle of the fleet, and may be the first vehicle in the front of the fleet (head vehicle), or the last vehicle in the fleet (tail vehicle), or the head of the fleet in general (Group head).
Optionally, the synchronization source to which the first device synchronizes is a synchronization source to which the first device synchronizes.
Optionally, the third device may send the at least one resource set to the first device through a broadcast message MIB, a system message SIB, RRC signaling, MAC layer signaling, DCI, and the like.
If the third device is a terminal device, the third device may send at least one resource set to the first device through PSBCH, PSCCH, PSSCH, RRC signaling, MAC layer signaling, and the like.
Optionally, the first device may determine one resource set of the at least one resource set as the first resource set. Alternatively, the first device may detect energy of resources of the M sets of resources to determine the first set of resources in the at least one set of resources, e.g., the first device may determine one of the at least one set of resources with the lowest detected energy as the first set of resources.
The M resources in the at least one resource set determined by the third device for the first device are all available resources of the first device.
It should be noted that the third device may determine at least one resource set for multiple devices, and the at least one resource set determined by the third device for different devices may be different.
In this possible implementation manner, the third device determines at least one resource set for the first device, so that the first device only needs to select one resource set from the at least one resource set as the first resource set, and thus the first device can quickly determine the first resource set.
The first device only sends the PSCCH in the first resource set, but not sends the PSCCH outside the first resource set, and the first device sends the indication first resource set to the second device, so that the second device can blindly detect the control information sent by the first device in the first resource set, the blind detection range of the second device is reduced, the blind detection complexity of the terminal device is reduced, and the power consumption of the terminal device is saved.
S502, the first device sends first information to the second device, wherein the first information is used for indicating the first resource set. Accordingly, the second device receives the first information.
Wherein the second device is one or more devices that can communicate with the first device.
Optionally, the first information includes at least one of an identifier of a resource in the first resource set, an identifier of the first resource set, a time range, and a valid number.
It should be noted that the first information may also include other information, and the present application is not limited to this specifically.
The first resource set comprises at least one of time domain resources, frequency domain resources, code domain resources, spatial domain resources, and power domain resources.
Optionally, the resources in the first set of resources may include frequency domain resources, such as an index of resource blocks RB, a number of RBs, a subchannel index, an identification of RBs in a subchannel. The resources in the first set of resources may include time domain resources such as symbol position (including start symbol or end symbol), number of symbols, slot position (including start slot or end slot), number of slots, etc. The first set of resources may include code domain resources such as root sequences, masks, scrambling codes, cyclic shifts, comb fingers, and so on. The first set of resources may include spatial resources such as codewords, streams, layers, number of antennas, number of antenna ports, and the like. The first set of resources may include power domain resources such as power values, power ranges, power offsets, power thresholds, and the like.
Optionally, the resources in the first resource set further include time-frequency resource blocks, CCE indexes of control channel elements, control resource set identifiers, search space identifiers, and the like.
Wherein, in some embodiments, the first information includes a time range, when the first information is used to instruct the first device to transmit the control information on resources in the first set of resources within the time range. That is, within the time horizon, the first device transmits control information on resources in the first set of resources, outside the time horizon, the first device may not transmit control information on resources in the first set of resources. In other words, the time range is the time range in which the first set of resources transmitted by the first device takes effect. For example, the first information includes at least one of an identifier of a resource in the first set of resources, an identifier of the first set of resources, and a time range, and a portion of the resource determined by the identifier of the resource in the first set of resources or the identifier of the first set of resources in the time range is the first set of resources. For example, the first information does not include the identifier of the resource in the first set of resources and the identifier of the first set of resources and includes a time range, and the first information is used to indicate that the first set of resources is a portion of the second set of resources within the time range.
For example, assuming that the time range is time a-time B, when the first device transmits control information between time a-time B, the first device transmits the control information in the resources of the first set of resources, and when the first device transmits the control information other than time a-time B, the first device does not necessarily transmit the control information in the resources of the first set of resources.
Wherein, in some embodiments, the first information includes at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, and a valid number, and at this time, the first information is further used to indicate a number of times the first device transmits the control information on the resource in the first set of resources. That is, the first device may transmit control information on resources in the first set of resources within the valid number of times, and the first device may not transmit control information on resources in the first set of resources outside the valid number of times. In some embodiments, the first information does not include the identifier of the resource in the first set of resources and the identifier of the first set of resources and includes the valid number of times, and the first information is used to indicate that the first set of resources is the same as the second set of resources, and the first information is also used to indicate the number of times the first device transmits the control information on the resource in the first set of resources. For example, the first information may include a first indication bit, where the first indication bit is used to indicate an identity of a resource in the first set of resources and/or an identity of the first set of resources, and when the first indication bit is null or a default value, the first information is used to indicate that the first set of resources is the second set of resources.
For example, assuming that the valid number of times is 5, when the first device transmits the control information 5 times before the first device transmits the first information, the first device transmits the control information in the resources of the first resource set, and when the first device transmits the control information 6 th time or after, the first device does not necessarily transmit the control information in the resources of the first resource set.
It should be noted that, when the first device does not send the control information on the resources in the first resource set, the first device may send failure information to the second device, where the failure information is used to indicate that the first device may not send the control information on the resources in the first resource set, so as to notify the second device that it is not necessary to blind detect the control information of the first device only in the first resource set.
Optionally, the first device may transmit the failure information through at least one of a PSBCH, a PSCCH, or a synchronization signal. The failure information is used to indicate that the first device releases or no longer uses the first set of resources. Optionally, the failure information may carry an identifier of the first resource set, and the like.
It should be noted that, if the Sub Carrier Spacing (SCS) or Cyclic Prefix (CP) of the first resource set is different from the channel indicating the first resource set, the second device may be further informed of the Sub Carrier Spacing (SCS) or Cyclic Prefix of the first resource set.
It should be noted that, when the first information does not include the identifier of the resource in the first resource set and the identifier of the first resource set, the first information is used to indicate that the first resource set is the second resource set. For example, the first information may include a first indication bit and a second indication bit, the first indication bit is used to transmit an identifier of a resource in the first set of resources and/or an identifier of the first set of resources, the second indication bit is used to transmit a time range and/or a valid number, and when the first indication bit is null or a default value, the first information is used to indicate that the first set of resources is the second set of resources.
Optionally, the first device may send the first information to the second device through a possible implementation manner as follows: the first device sends first signaling to the second device, wherein the first signaling comprises first information.
Optionally, the first signaling may be carried in one of PSCCH, psch, and Physical Sidelink Broadcast Channel (PSBCH).
If the first signaling is the PSCCH or the PSCCH, a first resource set indicated by the first information included in the first signaling is a resource used for transmitting the PSCCH next time or within a period of time or times later.
Optionally, the first signaling may be one of RRC signaling or a synchronization signal.
It should be noted that, when the second device is a device, the first device may send the first information to the second device in a unicast manner. When the second device is a plurality of devices and the second device is a device in the group of the first device, the first device may send the first information to the second device in a multicast manner. When the second device is a device with unlimited number and can communicate with the first device, the first device can send the first information to the second device in a broadcast mode.
S503, the first device sends control information to the second device on the resource in the first resource set.
It should be noted that after S502, the first device does not need to execute S503 immediately. That is, after the first device performs S502, S503 is performed only when the first device needs to transmit control information to the second device.
Optionally, after S502, the first device may send one or more control information to the second device in the first set of resources.
For example, the first information includes a time range, and after the first device sends the first information to the second device, the first device may send a plurality of control information to the second device on resources in the first set of resources after the first device sends the first information to the second device at time 1 to time 2, and the second device may each detect the plurality of control information in the first set of resources.
For example, the first information includes the valid times, and assuming that the valid times included in the first information is 5 times, after the first device transmits the first information to the second device, the first device may transmit the control information to the second device 5 times on resources in the first set of resources, and the second device detects the control information transmitted 5 times in the first set of resources.
For example, assuming that the first information does not include the time range and the valid times, after the first device sends the first information to the second device and before the first device sends the failure information corresponding to the first information, the first device may send the control information to the second device on the resources in the first set of resources, and the second device detects the control information in the first set of resources.
S504, the second device detects the control information sent by the first device in the first resource set.
Optionally, if the first information includes an identifier of a resource in the first resource set, the second device may determine the first resource set according to the identifier of the resource.
Optionally, if the first information includes an identifier of the first resource set, the second device determines the first resource set according to the identifier of the first resource set and a correspondence between at least one resource set and the identifier of the resource set. The correspondence between at least one resource set and the identifier of the resource set may be sent to the second device by the third device in advance.
Optionally, if the first information does not include the identifier of the resource in the first resource set and the identifier of the first resource set, the second device determines the second resource set as the first resource set.
Optionally, if the first information includes a time range, when the second device needs to detect the control information sent by the first device within the time range, the second device detects the control information sent by the first device in the first resource set.
Optionally, if the first information includes the valid times, when the second device needs to detect the control information sent by the first device within the valid times after receiving the first information, the second device detects the control information sent by the first device in the first resource set.
It should be noted that, if the second device does not receive the first information, the second device detects, in the default resource set, the control information sent by the first device. The default resource set is a PSCCH resource pool, or the default resource set is a pre-configured or base station configured resource set.
According to the control information transmission method, the first device sends the first information used for indicating the first resource set to the second device, and the first resource set is a set of resources used for the first device to send the control information to the second device.
Fig. 6 is a flowchart illustrating another control information transmission method provided in the present application. Referring to fig. 6, the method may include:
s601, the first device determines a first resource set, where the first resource set is a set of resources used by the first device to send the control information.
It should be noted that the execution process of S601 may refer to the execution process of S501, and details are not described here.
S602, the first device determines resource information of the second information according to the first resource set.
Wherein the resource information of the second information is used for indicating the first resource set.
Optionally, the second information may be control information, data information, and the like sent by the first device to the second device. Optionally, the second information may carry preset indication information to indicate the second device to determine the first resource set according to resource information of resources used by the second information.
Optionally, the second information is carried in at least one of PSCCH, PSBCH, and a synchronization signal.
Optionally, the resource information may include at least one of a resource location, a resource quantity, or a resource index.
Optionally, the resource information of the resource used by the second information may be resource information of a PSCCH, a PSBCH, or a synchronization signal carried by the second information.
For example, the resource information of the resource used by the second information may be a resource location or a resource number or a resource index of the PSCCH or PSBCH or the synchronization signal.
For example, assuming that the resource used by the second information is a time domain resource, the resource information of the resource used by the second information may be a symbol/slot position, including a start position and/or an end position, or a number of symbols/slots, of the PSCCH or pscsch or PSBCH or synchronization signal.
For example, assuming that the resource used by the second information is a frequency domain resource, the resource information of the resource used by the second information may be an RB position of a PSCCH or PSBCH or a synchronization signal, or a number of RBs.
The resource used by the second information includes at least one of time domain resource, frequency domain resource, code domain resource, space domain resource and power domain resource. The resource used by the second information may include frequency domain resources such as an index of resource blocks RB, the number of RBs, a subchannel index, an identification of RBs in a subchannel. The resources used by the second information may include time domain resources such as symbol position (including start symbol or end symbol), number of symbols, slot position (including start slot or end slot), number of slots, and the like. The resources used by the second information may include code domain resources such as root sequences, masks, scrambling codes, cyclic shifts, comb fingers, and the like. The resources used by the second information may include spatial domain resources, such as codewords, streams, layers, number of antennas, number of antenna ports, and the like. The resources used by the second information may include power domain resources such as power values, power ranges, power offsets, power thresholds, etc.
The resources used by the second information further include time-frequency resource blocks, CCE indexes of control channel elements, control resource set identifiers, search space identifiers, and the like.
Optionally, a corresponding relationship between the first resource set (or the identifier of the first resource set) and the resource information may be preset, and correspondingly, the first device may determine the resource information of the resource used by the second information according to the first resource set and the corresponding relationship. Optionally, the corresponding relationship may be predefined, or may be indicated to the first device and the second device by the network device through a high-level signaling, and the like, and of course, the corresponding relationship may also be preset through other feasible implementation manners, which is not specifically limited in this application.
For example, the correspondence between the identifier of the first resource set and the resource location of the resource used by the second information may be as shown in table 2:
TABLE 2
Identification of a first set of resources Resource position of resource used by the second information (index of RB)
00 0、3、6、9
01 1、4、7、10
10 2、5、8
Referring to table 2, for example, when the first device determines that the identifier of the first resource set is 01, the first device may transmit the second information at positions with RB indexes of 1, 4, 7, and 10 when transmitting the second information.
For example, the correspondence between the identifier of the first resource set and the resource quantity of the resource used by the second information may be as shown in table 3:
TABLE 3
Identification of a first set of resources Resource quantity (number of symbols) of resource used by the second information
00 1、4、7
01 2、5、8
10 3、6、9
Referring to table 3, for example, when the first device determines that the identifier of the first resource set is 00, the first device may transmit the second information using 1 symbol, or 4 symbols, or 7 symbols when transmitting the second information. For example, the first device may select 1 symbol, or 4 symbols, or 7 symbols according to the size of the first information.
For example, the correspondence between the identifier of the first resource set and the code domain resource used by the second information may be as shown in table 4:
TABLE 4
Figure BDA0001851362760000171
Referring to table 4, for example, when the first device determines that the identifier of the first resource set is 00, the cyclic shift CS of the corresponding demodulation reference signal DMRS may use 1, 4, 7, and 10 when the first device transmits the second information. For example, when the first device determines that the identifier of the first resource set is 01, the cyclic shift CS of the corresponding demodulation reference signal DMRS may use 2, 5, 8, 11 when the first device transmits the second information. For example, when the first device determines that the identifier of the first resource set is 10, the cyclic shift CS of the corresponding demodulation reference signal DMRS may use 3, 6, 9, 0 when the first device transmits the second information.
For example, the correspondence between the identifier of the first resource set and the spatial domain resource used by the second information may be as shown in table 5:
TABLE 5
Identification of a first set of resources Spatial resources (e.g., antenna ports) used by the second information
00 1、4、7、10
01 2、5、8、11
10 3、6、9、12
Referring to table 4, for example, when the first device determines that the identifier of the first resource set is 00, the first device may transmit the second information using antenna ports 1, 4, 7, and 10 when transmitting the second information, which is total of 3 first resource sets. For example, when the first device determines that the identity of the first set of resources is 01, then the first device may transmit the second information using antenna ports 2, 5, 8, 11 when transmitting the second information. For example, when the first device determines that the identity of the first set of resources is 10, then the first device may transmit the second information using antenna ports 3, 6, 9, 12 when transmitting the second information.
It should be noted that tables 2 to 5 only illustrate the corresponding relationship between the identifier of the first resource set and the resource information (resource location or resource quantity) in an exemplary form, and do not limit the corresponding relationship, and in the actual application process, the corresponding relationship may be set according to actual needs, which is not specifically limited in this application.
S603, the first device sends second information to the second device according to the resource information. Accordingly, the second device receives the second information.
Optionally, if the resource information includes a resource location, the first device sends the second information to the second device in the resource location in the resource information.
Optionally, if the resource information includes the number of resources, the first device sends the second information to the second device using the corresponding number of resources (the number of resources in the resource information).
Optionally, if the resource information includes the resource index, the first device sends the second information to the second device using the resource indicated by the resource index.
It should be noted that, after S603, when the first device needs to transmit the control information, the first device transmits the control information on the resources of the first resource set.
S604, the second device determines a first resource set according to the resource information of the resource used by the second information.
Optionally, after receiving a piece of information, the second device first determines whether the piece of information carries preset indication information, if so, the second device may determine that the piece of information is a piece of second information, and determine the first resource set according to resource information of resources used by the second information.
Optionally, the second device may determine, according to the resource information of the resource used by the second information, an identifier of the first resource set, and determine the first resource set according to the identifier of the first resource set.
Optionally, the second device may preset a corresponding relationship between the identifier of the first resource set and the resource location of the resource used by the second information, and determine the identifier of the first resource set according to the resource information of the resource used by the second information and the corresponding relationship.
For example, referring to table 2, assuming that the second device receives the second information on RB3, the second device may determine, according to the correspondence shown in table 2, that the identifier of the first resource set is 00, and then determine, as the first resource set, a resource set identified as 00 in at least one resource set.
For example, referring to table 3, assuming that the second device receives the second information on 5 symbols, the second device may determine, according to the correspondence shown in table 3, that the identifier of the first resource set is 01, and then determine, as the first resource set, a resource set identified as 01 in at least one resource set.
For example, referring to table 4, assuming that the cyclic shift CS of the DMRS received by the second device and corresponding to the second information is 11, the second device may determine, according to the correspondence shown in table 3, that the identifier of the first resource set is 01, and then determine, as the first resource set, a resource set identified as 01 in at least one resource set.
For example, referring to table 5, assuming that the second device receives the second information on the antenna port 8, the second device may determine, according to the correspondence shown in table 5, that the identifier of the first resource set is 01, and then determine, as the first resource set, a resource set identified as 01 in at least one resource set.
S605, the second device detects the control information sent by the first device in the first resource set.
It should be noted that, for the process of the second device detecting the control information sent by the first device in the first resource set, reference may be made to a blind detection process in the prior art, which is not described herein again.
In the embodiment shown in fig. 6, the first device determines a first resource set used for transmitting control information, determines resource information of second information to be transmitted according to the first resource set, and transmits the second information according to the resource information. After the second device receives the second information, resource information is determined according to resources used by the second information, a first resource set is determined according to the resource information, and control information sent by the first device is detected in the first resource set in a blind mode. The blind detection range of the second equipment is narrowed, the complexity of blind detection of the terminal equipment is reduced, and the power consumption of the terminal equipment is saved. Furthermore, the first device does not need to send information to the second device separately to indicate the first resource set, thereby saving signaling overhead.
Fig. 7 is a schematic structural diagram of a control information transmission device according to the present application. Referring to fig. 7, the control information transmission apparatus 10 may include a sending module 11, wherein,
the sending module 11 is configured to send first information to a second device, where the first information is used to indicate a first resource set;
the sending module 11 is further configured to send control information to the second device on a resource in the first resource set.
Optionally, the control information transmission apparatus may further include a processing module 12, where the processing module 12 may be configured to control the sending module 11 to send first information to the second device, where the first information is used to indicate the first resource set, and the processing module 12 may be further configured to control the sending module 11 to send the control information to the second device on a resource in the first resource set.
Optionally, the processing module 12 may be further configured to determine the first resource set, determine the first information, and the like.
Optionally, the sending module may execute S502-S503 in the embodiment of fig. 5.
Optionally, the processing module 12 may execute S501 in the embodiment of fig. 5.
It should be noted that the control information transmission apparatus 10 shown in the present application can execute the method shown in the embodiment of fig. 5, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
In a possible implementation, the first set of resources is a subset of a second set of resources, and the resources in the second set of resources are used for transmitting control information of a sidelink.
In a possible embodiment, the first information includes at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for instructing the first device to transmit control information on the resources in the first resource set in the time range, and the valid times are used for instructing the first device to transmit the control information on the resources in the first resource set.
In one possible embodiment, the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device does not detect control information on resources in the first set of resources.
Fig. 8 is a schematic structural diagram of another control information transmission apparatus provided in the present application. On the basis of the embodiment shown in fig. 7, please refer to fig. 8, the control information transmission apparatus 10 further includes a receiving module 13, wherein,
the receiving module 13 is configured to receive at least one resource set from a third device before the sending module 11 sends the first information to the second device, where the third device includes at least one of a base station, a synchronization source, or a group header; the first set of resources is one of the at least one set of resources.
Optionally, the processing module 12 may be further configured to control the receiving module 13 to receive at least one resource set from a third device.
In a possible implementation manner, the sending module 13 is specifically configured to: and sending first signaling to the second equipment, wherein the first signaling comprises first information.
In a possible implementation, the first signaling is carried on a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
In a possible embodiment, the first set of resources comprises at least one subchannel and/or a part of resources in the at least one subchannel.
In one possible embodiment, the first set of resources includes at least one of time domain resources, frequency domain resources, code domain resources, spatial domain resources, and power domain resources.
It should be noted that the control information transmission apparatus 10 shown in the present application can execute the method shown in the embodiment of fig. 5, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
Fig. 9 is a schematic structural diagram of another control information transmission apparatus provided in the present application. Referring to fig. 9, the control information transmitting device 20 may include a receiving module 21 and a processing module 22, wherein,
the receiving module 21 is configured to receive first information, where the first information is used to indicate a first resource set;
the processing module 22 is configured to detect, in the first set of resources, control information sent by the first device.
It should be noted that the processing module 22 may also be configured to control the receiving module 21 to receive the first information.
Optionally, the receiving module 21 may execute S502 in the embodiment of fig. 5.
Alternatively, the processing module 22 may execute S504 in the embodiment of fig. 5.
It should be noted that the control information sent by the first device may also be detected in the first set of resources by the receiving module 21. Alternatively, the receiving module 21 and the processing module 22 are used in combination to implement the detection of the control information sent by the first device in the first resource set.
It should be noted that the control information transmission apparatus 20 shown in the present application may execute the method shown in the embodiment of fig. 5, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
In a possible implementation, the first set of resources is a subset of a second set of resources, and the resources in the second set of resources are used for transmitting control information of a sidelink.
In a possible embodiment, the first information includes at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for instructing the first device to transmit control information on the resources in the first resource set in the time range, and the valid times are used for instructing the first device to transmit the control information on the resources in the first resource set.
In one possible embodiment, the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device detecting no control information on a resource in the first set of resources;
the first set of resources is one of at least one set of resources received by the first device, the at least one set of resources is received by the first device from a third device, and the third device includes at least one of a base station or a synchronization source.
In a possible implementation manner, the receiving module 21 is specifically configured to receive a first signaling sent by the first device, where the first signaling includes first information.
In a possible implementation, the first signaling is carried on a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
It should be noted that the control information transmission apparatus 20 shown in the present application may execute the method shown in the embodiment of fig. 5, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
Fig. 10 is a schematic structural diagram of another control information transmission apparatus provided in the present application. Referring to fig. 10, the control information transmission apparatus 30 may include a processing module 31 and a sending module 32, wherein,
the processing module 31 is configured to determine a first resource set, where the first resource set is a set of resources used by the first device to send the control information;
the processing module 31 is further configured to determine resource information of second information according to the first resource set;
the sending module 32 is configured to send the second information to the second device according to the resource information.
It should be noted that the processing module 31 may be further configured to control the sending module 32 to send the second information to the second device according to the resource information.
Alternatively, the processing module 31 may execute S601-S602 in the embodiment of fig. 6.
Optionally, the sending module 32 may execute S603 in the embodiment of fig. 6.
It should be noted that the control information transmission apparatus 30 shown in the present application may execute the method shown in the embodiment of fig. 6, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
In a possible implementation, the resource information includes at least one of a resource location, a resource quantity, or a resource index.
In a possible implementation manner, the second information is carried in at least one of a physical side row control channel, a physical side row shared channel, a physical side row broadcast channel, and a synchronization signal.
It should be noted that the control information transmission apparatus 30 shown in the present application may execute the method shown in the embodiment of fig. 6, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
Fig. 11 is a schematic structural diagram of another control information transmission apparatus provided in the present application. Referring to fig. 11, the control information transmitting device 40 may include a receiving module 41 and a processing module 42, wherein,
the receiving module 41 is configured to receive second information sent by a first device;
the processing module 42 is configured to determine a first resource set according to the resource information of the second information;
the processing module 42 is further configured to detect, in the first set of resources, control information sent by the first device.
Optionally, the processing module 42 may be further configured to control the receiving module 41 to receive the second information sent by the first device.
Alternatively, the receiving module 41 may execute S603 in the embodiment of fig. 6.
Optionally, the processing module 42 may perform S604-S605 in the embodiment of fig. 6.
It should be noted that the control information transmission apparatus 40 shown in the present application can execute the method shown in the embodiment of fig. 6, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
In a possible implementation, the resource information includes at least one of a resource location, a resource quantity, or a resource index.
In a possible implementation manner, the second information is carried in at least one of a physical side row control channel, a physical side row shared channel, a physical side row broadcast channel, and a synchronization signal.
It should be noted that the control information transmission apparatus 40 shown in the present application can execute the method shown in the embodiment of fig. 6, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.
Fig. 12 is a schematic diagram of a hardware structure of a control information transmission device according to the present application. Referring to fig. 12, the control information transmission device 50 includes: a memory 51, a processor 52 and a communication interface 53, wherein the memory 51, the processor 52 and the communication interface 53 may communicate; illustratively, the memory 51, the processor 52 and the communication interface 53 may communicate via the communication bus 54, the memory 51 being configured to store a computer program, the processor 52 executing the computer program to implement the method illustrated in the embodiment of fig. 5 described above.
Optionally, the communication interface 53 may also include a transmitter and/or a receiver.
Optionally, the Processor may be a Central Processing Unit (CPU), or may be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps (S501-S504 in the embodiment of fig. 5) of the method disclosed in this application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
Fig. 13 is a schematic diagram of a hardware structure of another control information transmission apparatus provided in the present application. Referring to fig. 13, the control information transmission device 60 includes: a memory 61, a processor 62 and a communication interface 63, wherein the memory 61, the processor 62 and the communication interface 63 are communicable; illustratively, the memory 61, the processor 62 and the communication interface 63 may communicate via a communication bus 64, the memory 61 being configured to store a computer program, the processor 62 executing the computer program to implement the method illustrated in the embodiment of fig. 5 described above.
Optionally, the communication interface 63 may also include a transmitter and/or a receiver.
Optionally, the Processor may be a Central Processing Unit (CPU), or may be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps (S501-S504 in the embodiment of fig. 5) of the method disclosed in this application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
Fig. 14 is a schematic diagram of a hardware structure of another control information transmission apparatus provided in the present application. Referring to fig. 14, the control information transmission device 70 includes: a memory 71, a processor 72 and a communication interface 73, wherein the memory 71, the processor 72 and the communication interface 73 are communicable; illustratively, the memory 71, the processor 72 and the communication interface 73 may communicate via a communication bus 74, the memory 71 being configured to store a computer program, the processor 72 executing the computer program to implement the method illustrated in the embodiment of fig. 6 described above.
Optionally, the communication interface 73 may also include a transmitter and/or a receiver.
Optionally, the Processor may be a Central Processing Unit (CPU), or may be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps (S601-S605 in the embodiment of fig. 6) of the method disclosed in this application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.
Fig. 15 is a schematic diagram of a hardware structure of a control information transmission device according to the present application. Referring to fig. 15, the control information transmission device 80 includes: a memory 81, a processor 82 and a communication interface 83, wherein the memory 81, the processor 82 and the communication interface 83 can communicate; illustratively, the memory 81, the processor 82 and the communication interface 83 may communicate via a communication bus 84, the memory 81 being used for storing a computer program, the processor 82 executing the computer program to implement the method shown in the embodiment of fig. 6 described above.
Optionally, the communication interface 83 may also include a transmitter and/or a receiver.
Optionally, the Processor may be a Central Processing Unit (CPU), or may be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps (S601-S605 in the embodiment of fig. 6) of the method disclosed in this application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.
The present application provides a storage medium for storing a computer program for implementing the control information transmission method described in the embodiment of fig. 5.
The present application provides a storage medium for storing a computer program for implementing the control information transmission method described in the embodiment of fig. 5.
The present application provides a storage medium for storing a computer program for implementing the control information transmission method described in the embodiment of fig. 6.
The present application provides a storage medium for storing a computer program for implementing the control information transmission method described in the embodiment of fig. 6.
All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape (magnetic tape), floppy disk (flexible disk), optical disk (optical disk), and any combination thereof.
The present application provides a chip, where the chip is used to support a first device to implement the functions shown in the embodiments of the present application (for example, determine a first resource set, send first information, send control information to a second device in the first resource set, send the second information, and the like), and the chip is specifically used in a chip system, where the chip system may be formed by a chip, and may also include a chip and other discrete devices. When the chip in the first device implements the method described above, the chip includes a processing unit, and further, the chip may further include a communication unit, and the processing unit may be, for example, a processor, and when the chip includes a communication unit, the communication unit may be, for example, an input/output interface, a pin, a circuit, or the like. The processing unit performs all or part of the actions performed by the respective processing modules (e.g., the processing modules in fig. 7, 8, and 10) in the embodiments of the present application, and the communication unit may perform corresponding receiving or sending actions, for example, sending the first information to the second device, sending control information to the second device in the first resource set, receiving at least one resource set from the third device, and the like. In another specific embodiment, the processing module of the receiving device in the present application may be a processing unit of a chip, and the receiving module or the transmitting module of the control device is a communication unit of the chip.
The present application provides a chip, where the chip is configured to support a second device to implement a function shown in an embodiment of the present application (for example, receive first information, receive second information, detect, in the first resource set, control information sent by the first device, and the like), and the chip is specifically used for a chip system, where the chip system may be formed by a chip, and may also include a chip and other discrete devices. When the chip in the second device implements the above method, the chip includes a processing unit, and further, the chip may further include a communication unit, and the processing unit may be, for example, a processor, and when the chip includes the communication unit, the communication unit may be, for example, an input/output interface, a pin, a circuit, or the like. The processing unit performs all or part of the actions performed by the respective processing modules (for example, the processing modules in fig. 9 and fig. 11) in the embodiments of the present application, and the communication unit may perform corresponding receiving or sending actions, for example, receiving the first information, receiving the second information, and the like. In another specific embodiment, the processing module of the receiving device in the present application may be a processing unit of a chip, and the receiving module or the transmitting module of the control device is a communication unit of the chip.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.
In the present application, the terms "include" and variations thereof may refer to non-limiting inclusions; the term "or" and variations thereof may mean "and/or". The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. In the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Claims (28)

1. A method for transmitting control information, comprising:
the second device receives first information, wherein the first information is used for indicating a first resource set;
the second device detects control information sent by the first device in the first resource set; the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information.
2. The method of claim 1, wherein the first information comprises at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for instructing the first device to transmit control information on the resources in the first resource set in the time range, and the valid times are used for instructing the first device to transmit the control information on the resources in the first resource set.
3. The method according to any of claims 1 or 2, wherein the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device detecting no control information on a resource in the first set of resources;
the first set of resources is one of at least one set of resources received by the first device, the at least one set of resources is received by the first device from a third device, and the third device includes at least one of a base station or a synchronization source.
4. The method according to any of claims 1 or 2, wherein the second device receives first information comprising:
the second device receives a first signaling sent by the first device, wherein the first signaling comprises first information, and the first signaling is carried in a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
5. A method for transmitting control information, comprising:
the method comprises the steps that a first device sends first information to a second device, wherein the first information is used for indicating a first resource set;
the first device sends control information to the second device on resources in the first set of resources, so that the second device detects the control information in the first set of resources; the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information.
6. The method of claim 5, wherein the first information comprises at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for instructing the first device to transmit control information on the resources in the first resource set in the time range, and the valid times are used for instructing the first device to transmit the control information on the resources in the first resource set.
7. The method according to any of claims 5 or 6, wherein the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device does not detect control information on resources in the first set of resources.
8. The method according to any one of claims 5 or 6, wherein before the first device sends the first information to the second device, the method further comprises:
the first device receiving at least one set of resources from a third device, the third device comprising at least one of a base station or a synchronization source or a group head; the first set of resources is one of the at least one set of resources.
9. The method of any of claims 5 or 6, wherein the first device sends first information to the second device, comprising:
the first device sends a first signaling to the second device, wherein the first signaling comprises first information, and the first signaling is carried in a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
10. The method according to any of claims 5 or 6, wherein the first set of resources comprises at least one sub-channel and/or a part of resources in the at least one sub-channel.
11. The method according to any of claims 5 or 6, wherein the first set of resources comprises at least one of time domain resources, frequency domain resources, code domain resources, spatial domain resources, power domain resources.
12. A method for transmitting control information, comprising:
the second equipment receives second information sent by the first equipment;
the second device determines a first resource set according to the resource location of the second information, where the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information;
the second device detects the control information sent by the first device in the first set of resources.
13. The method of claim 12, wherein the second information is carried in at least one of a physical sidelink control channel, a physical sidelink shared channel, a physical sidelink broadcast channel, and a synchronization signal.
14. A method for transmitting control information, comprising:
the method includes the steps that a first device determines a first resource set, wherein the first resource set is a set of resources used by the first device for sending control information, the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information;
the first equipment determines the resource position of second information according to the first resource set;
and the first equipment sends the second information to second equipment according to the resource position, so that the second equipment determines the first resource set according to the resource position of the second information, and detects the control information sent by the first equipment in the first resource set.
15. The method of claim 14, wherein the second information is carried in at least one of a physical sidelink control channel, a physical sidelink shared channel, a physical sidelink broadcast channel, and a synchronization signal.
16. A control information transmission device is characterized by comprising a receiving module and a processing module, wherein,
the receiving module is configured to receive first information, where the first information is used to indicate a first resource set;
the processing module is configured to detect, in the first resource set, control information sent by a first device; the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information.
17. The apparatus of claim 16, wherein the first information comprises at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for instructing the first device to transmit control information on the resources in the first resource set in the time range, and the valid times are used for instructing the first device to transmit the control information on the resources in the first resource set.
18. The apparatus according to any of claims 16 or 17, wherein the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device detecting no control information on a resource in the first set of resources;
the first set of resources is one of at least one set of resources received by the first device, the at least one set of resources is received by the first device from a third device, and the third device includes at least one of a base station or a synchronization source.
19. The apparatus of any one of claims 16 or 17,
the receiving module is specifically configured to receive a first signaling sent by the first device, where the first signaling includes first information, and the first signaling is carried in a physical sidelink control channel, a physical sidelink shared channel, or a physical sidelink broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
20. A control information transmission apparatus, comprising a transmission module, wherein,
the sending module is configured to send first information to a second device, where the first information is used to indicate a first resource set;
the sending module is further configured to send control information to the second device on a resource in the first resource set, so that the second device detects the control information in the first resource set; the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information.
21. The apparatus of claim 20, wherein the first information comprises at least one of an identification of a resource in the first set of resources, an identification of the first set of resources, a time range, and a validity number;
wherein the time range is used for indicating that a first device transmits control information on resources in the first resource set in the time range, and the valid times are used for indicating the times that the first device transmits control information on resources in the first resource set.
22. The apparatus according to any of claims 20 or 21, wherein the first set of resources satisfies at least one of the following conditions:
the energy detected by the first device on a resource of the first set of resources is less than a first threshold;
the first device does not detect control information on resources in the first set of resources.
23. The apparatus according to any one of claims 20 or 21, wherein the sending module is specifically configured to:
sending a first signaling to the second device, wherein the first signaling comprises first information, and the first signaling is carried in a physical side row control channel, a physical side row shared channel or a physical side row broadcast channel; or, the first signaling is RRC signaling or a synchronization signal.
24. The apparatus according to any of claims 20 or 21, wherein the first set of resources comprises at least one of time domain resources, frequency domain resources, code domain resources, spatial domain resources, power domain resources.
25. A control information transmission device is characterized by comprising a processing module and a sending module, wherein,
the processing module is configured to determine a first resource set, where the first resource set is a set of resources used by the first device to send the control information; the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information;
the processing module is further configured to determine a resource location of second information according to the first resource set;
the sending module is configured to send the second information to a second device according to the resource location, so that the second device determines the first resource set according to the resource location of the second information, and detects the control information sent by the first device in the first resource set.
26. A control information transmission device is characterized by comprising a receiving module and a processing module, wherein,
the receiving module is used for receiving second information sent by the first equipment;
the processing module is used for determining a first resource set according to the resource position of the second information; the first resource set is a subset of a second resource set, the second resource set is a set of resources used for sending sidelink control information in a third resource set, and the third resource set is a set of resources used for sending sidelink control information and data information;
the processing module is further configured to detect, in the first set of resources, control information sent by the first device.
27. The apparatus of claim 26, wherein the second information is carried in at least one of a physical sidelink control channel, a physical sidelink shared channel, a physical sidelink broadcast channel, and a synchronization signal.
28. A storage medium characterized by storing a computer program for implementing the control information transmission method according to any one of claims 1 to 15.
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